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The traditions we associate with Christmas have evolved over the centuries. Here are answers to five questions about these traditions, from the date we choose to celebrate to the origin of Santa. 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/ style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/A)The Bible makes no mention of Jesus being born on December 25th and, as more than one historian has pointed out, why would shepherds be tending to their flock in the middle of winter? So why is that the day we celebrate? Well, either Christian holidays miraculously fall on the same days as Pagan ones or the Christians have been crafty in converting pagan populations to religion by placing important Christian holidays on the same days as pagan ones. And people had been celebrating on December 25th(and the surrounding weeks)for centuries by the time Jesus showed up. 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/B)The Winter Solstice, falling on or around December 21st, was and is celebrated around the world as the beginning of the end of winter. It is the shortest day and longest night and its passing signifies that spring is on the way. In Scandinavian countries, they celebrated the solstice with a holiday called Yule last from the 21st until January and burned a Yule log the whole time. 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/C)In Rome, Saturnalia—a celebration of Saturn, the God of agriculture—lasted the entire end of the year and was marked by mass intoxication. In the middle of this, the Romans celebrated the birth of another God, Mithra(a child God), whose holiday celebrated the children of Rome. When the Christianity became the official religion of Rome, there was no Christmas. It was not until the 4th century that Pope Julius I declared the birth of Jesus to be a holiday and picked December 25th as the celebration day. By the middle ages, most people celebrated the holiday we know as Christmas. 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/ style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/D)The American Christmas is, like most American holidays, a mishmash of Old World customs mixed with American inventions. While Christmas was celebrated in America from the time of the Jamestown settlement, our modem idea of the holiday didn’t take root until the 19th century. The History Channel credits Washington Irving with getting the ball rolling. In 1819 he published The Sketchbook of Geoffrey Crayon, gent. , an account of a Christmas celebration in which a rich family invites poor folk into their house to celebrate the holiday. 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/E)The problem was that many of the activities described in Irving’s work, such as crowning a Lord of Misrule, were entirely fictional. Nonetheless, Irving began to steer Christmas celebrations away from drunken debauchery(放荡)and towards wholesome, charitable fun. Throughout the rest of the 19th century, Christmas gained popularity and Americans adopted old customs or invented new ones, such as Christmas trees, greeting cards, giving gifts and eating a whole roasted pig. 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/ style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/F)Since time immortal, humans have been fascinated with the color green mid plants that stay green through winter. Many ancient societies—from Romans to Vikings—would decorate their Homes and temples with evergreens in the winter as a symbol of the returning growing season. But the Christmas tree didn’t get going until some intrepid(无畏的)German dragged home and decorated a tree in the l6th century. Legend has it that Martin Luther himself added lighted candles to his family’s tree, starting the trend(and leading to countless fires through the years). In America, the Christmas tree didn’t catch on until 1846 when the British royals, Queen Victoria and the German Prince Albert, were shown with a Christmas tree in a newspaper. Fashionable people in America mimicked the Royals and the tree thing spread outside of German enclaves(被围领土)in America. Ornaments, courtesy of Germany, and electric lights, courtesy of Thomas Edison’s assistants, were added over the years and we haven’t changed much since. 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/ style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/G)The jolly, red-suited man who sneaks into your home every year to leave you girls hasn’t always been so jolly. The real Saint Nick was a Turkish monk who rived in the 3rd century. According to legend, he was a rich man thanks to an inheritance from his parents, but he gave it all away in the form of gifts to the less-fortunate. He eventually became the most popular saint in Europe and, through his alter ego, Santa Claus, remains so to this day. But how did a long-dead Turkish monk become a big, fat, reindeer-riding pole dweller? The Dutch got the ball rolling by celebrating the saint-called Sinter Klaas—in New York in the late-18th century. Our old friend, Washington Irving, included the legend of Saint Nick in his seminal History of New-York as well, but at the turn of the 18th century, Saint Nick was still a rather obscure figure in America. 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/H)On December 23, 1823, though, a man named Clement Clarke Moore published a poem he had written for his daughters called “An Account of a Visit from St. Nicholas. ” better known now as “T’ was the Night Before Christmas. ” Nobody knows how much of the poem Moore invented, but we do know that it was the spark that eventually lit the Santa fire. Many of the things we associate with Santa—a sleigh, reindeer. Christmas Eve visits—came from Moore’s poem. From 1863 to1886, Thomas Nast’s illustrations of Santa Claus appeared in Harper’s Weekly—including a scene with Santa giving gifts to Union soldiers. Not much has changed since the second half of the 19th century:Santa still gets pulled in a sleigh by flying reindeer, he still wears the big red suit and he still sneaks down chimneys to drop off presents. 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/ style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/I)Santa did get one more friend in 1939. Robert May, a copywriter for the Montgomery Ward department store chain, wrote a little story about a 9th reindeer with a disturbing red nose for a booklet to give customers during the holiday season. Ten years later, May’s brother would put the story to music, writing the lyrics and melody.

1.[选词填空]What Santa Claus does nowadays can be traced back to one of Clement Clarke Moore’s poems.

2.[选词填空]Rudolph, one of Santa Claus’ friends, appeared in Robert May’s story as a reindeer(with a disturbing red nose).

3.[选词填空]Christmas began to take root in America in the 19th century, thanks to the writer Washington Irving.

4.[选词填空]The trend of Christmas tree tradition in German Was said to be related to Martin Luther.

5.[选词填空]Drunken debauchery was regarded as old Christmas practice in America in the 19th century?

6.[选词填空]Winter Solstice means spring is coming when it comes around Dec. 21st.

7.[选词填空]The celebration of Jesus’ birth on Dec. 25th has much to do with Pope Julius I.

8.[选词填空]Santa Claus was based on a monk named Saint Nick who was from Turkey.

9.[选词填空]Color green fascinated the Vikings?

10.[选词填空]People began to celebrate Dec. 25th long before the birth of Jesus.

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    Just how much do people know about keeping their homes safe from burglary? Surprisingly, many of us make assumptions about home security that can actually increase our risk of a burglary by leaving us—and our homes—undefended. Here are some home-security myths and truths.
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/ style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/A) A home-security system cannot stop a burglar from hitting your home. But it is a strong deterrent (威慑), making him think twice before targeting you. “Criminals have told me, when they were questioned, they had walked by three or four houses that had alarm stuck to their windows and then hit the one that didn’t,” says Const. Jim Caldwell of the Edmonton Police Service. That’s because setting off an alarm could mean a call to police. And if a thief does break in, he is less likely to make a thorough search of the house. “It’s going to be a smash-and-grab,” says Normand Fiset, president of the Quebec chapter of the Canadian Security Association. “Usually they’re in and out quickly.”
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/ style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/B) Research indicates that your house is 12 times more likely to be broken into again within the next month. Susan Hall’s Toronto home was burglarized a few years ago. “The police told us, ‘Don’t be surprised if they come back after you’ve replaced everything,’” she says. In her case they didn’t, but nevertheless she promptly put her most sentimental possessions in a security box. Make it a priority to assess your home security and take steps to enhance it. If you do replace stolen merchandise, don’t put the packaging boxes out on display for roadside pickup.
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/ style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/C) “A lock is only as strong as the door and the door frame,” says Const. Donald Jenkins of the Halifax Regional Police. Steel doors are a good idea, too, but look for one with a solid-wood core, not a hollow door. And consider adding a solid-steel strip to the side of the door to prevent thieves from breaking the frame with an iron bar.Other steps make a difference. Install external lighting and keep bushes trimmed around doors and windows. The more visible a thief will be while breaking into your home, the tess likely it is that he’ll try. Beware-of-dog signs and locked gates also discourage criminals. And while it may seem obvious, if you do invest in good security features, make sure you actually use them. Caldwetl recently investigated a break-and- enter case in which “the guy had the best of locks, the best of alarm systems—and none of it was engaged.” 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/ style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/D) “Actually, the opposite is true,” says Ron Noiles, senior vice-president for personal-property insurance with Aviva Canada, a major sponsor of the Neighborhood Watch program. “Criminals look for neighborhoods where the goods are good. And those are typically the ones people believe they’re safe in.” If you take fewer safety precautions, like not locking your door, because you believe it’s unlikely you’ll suffer a break-in, you’re increasing the odds of your home becoming a target.
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/ style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/It’s true that most thieves seek out unoccupied houses. But home burglary, in which criminals strike deliberately while people are home so they can let them in, do sometimes happen. “It is the most effective way of carrying out the theft because you know you won’t get surprised by the owners—you have them caught,” says Fiset. And when home invasions occur, almost half the homeowners end up injured, according to the Canadian Centre for Justice Statistics.
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/ style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/E) While closed curtains at night do keep thieves from looking inside, during the day they may serve as an ideal cover for burglars. Opening curtains in daytime also makes it look as though someone is home. 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/“There’s little I can do to reduce property crime in my neighborhood.”
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/Police experts say that getting to know your neighbors is a huge factor in combating break-ins. “If someone sees an unfamiliar car in your driveway or people moving secretly about your property, neighbors will be more inclined to call police,” says Jenkins. Consider getting involved with a local Neighborhood Watch group, or contact your local police department to set one up.
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/ style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/F) Statistics show that houses with alarm systems are less likely to be broken into, and if they are, less property is stolen. And there’s an added bonus—Home-insurance companies typically offer a discount on your payment once you have a security system installed. Unmonitored alarms sound a siren (警报器) inside or outside your house and, if you’re lucky, alert a neighbor to trouble. A system that is monitored (at a cost of around $30 a month) will summon the police. The Canadian Security Association’s Normand Fiset recommends having the alarm monitored rather than relying on neighbors to act. “When is the last time you considered calling the cops when you heard a car alarm’ in a parking lot?” he reasons. He also points out that more and more cities and towns are banning outside sirens, and an alarm that sounds only inside the house does little good.
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/G) If your alarm is monitored, its signal travels to the monitoring service, usually through your phone line. Service personnel will call the police when there’s a problem, often phoning your home first to ensure it’s not a false alarm. (If it is, you simply supply your password to cancel it.) In many regions, the homeowner is accountable for a fee if police are called needlessly. The physical components of an alarm system—motion detectors, magnetic door or window contacts, control panel—can be either hard-wired through your home or connected with wireless-radio signals. Be sure to check that the company installing the alarm is a member of a professional association and has any licenses required by your city or town.
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/H) Magnetic contact at the doors and windows and glass-break detection will trip the alarm if the perimeter(周界) of the house is crossed. The alarm will be set off before the thief has set foot inside your home. Motion detectors inside are functioned if a person moves inside the home while the system is armed. Ensure that the system you select gives the option of arming the perimeter and motion sensors separately. That way, the alarm can alert you to any breaking-in even when you are home.
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/I) If you have a pet or are considering getting one, make sure your system is designed to pick up only the motion of humans. What if a thief cuts your phone line to prevent contact with the monitoring company? Although this doesn’t happen often, some systems now offer wireless-phone support. The newest technology even uses your Internet connection to send out a burglary alert.

1.[选词填空]An alarm system usually consists of motion detectors .

2.[选词填空]Thieves will be usually discouraged by external lighting, well-trimmed bushes, and beware-of-dog signs.

3.[选词填空]The houses in a good neighborhood also suffer break-ins because burglars look for the place where goods are good.

4.[选词填空]Once the monitored alarm is set off, service personnel will phone your home first

5.[选词填空]Donald Jenkins of Halifax Regional Police suggests installing steel doors with a solid-steel strip.

6.[选词填空]If a thief does break into a house equipped with an alarm system, he is likely to have less time to make a thorough search of the house.

7.[选词填空]Assess home security is the primary thing should people do after being burglarized.

8.[选词填空]It is better for people to keep the curtains closed at night.

9.[选词填空]An alarm system frightens away the burglars.

10.[选词填空]Besides preventing burglary, the added bonus of investing alarm systems is that home-security company offerwill you a discount.

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style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/Planning your trip: Where to stay
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/A) So you’ve finally decided to take advantage of some well-earned vacation time and visit Prague, the city of your dreams. Because you’ll be all by yourself, the planning of your trip is automatically different. One of the first questions worth attention is how you’re going to spend your time in the beautiful Czech Republic capital. Are you going on a shoestring budget, or would you rather go all-out and book a room in a fancy hotel?
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/B) Because traveling alone means your money is funding the trip, a wise choice would be to stay in youth hostels. Cast away the wrong idea that these places are uncomfortable and dirty, and accept the fact that hostels provide safe, clean, comfortable, and most importantly, cheap housing that millions of students and economical travelers take advantage of every year. It is relatively easy to book a room at a hostel via the Internet, and plenty of information is available about each one. On the other hand, if you can’t wait to take advantage of room service and a Jacuzzi bath, then turn to a hotel. 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/ style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/C) Along with securing your accommodations, prepare a route of the journey for each day before you leave. This plan should include everything from visiting all the famous landmarks to some relaxation time, which is essential since you’ll be likely walking for miles in your comfortable shoes(invest in a good pair, it will pay off). As great as organization is, however, you may not, at times, have to be restrained by your plan so as to leave room for some sceneries unexpected or unplanned on your trip. That is exactly the beauty of traveling alone: You are your own master, and while preparation is key, there is always room to do something wild. 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/Important information prior to takeoff
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/D) One of the hardest parts of traveling in general is coming up with a list of what you’ll need to bring with you(or leave behind). Thinking of these all-important items becomes all the more difficult(and necessary) when you have no one else to rely on. Whatever luggage you take, make sure it’s easy to handle. The best solution is to take one hold-all, be it a suitcase or a backpack, and then a smaller bag which you can hang loosely from your shoulder. It’s also a good idea to keep a change of clothing in your shoulder bag in case your suitcase or backpack gets lost by an airline or bus company. 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/E) If you’re heading for a foreign country, don’t leave home without a bilingual dictionary. Although a strong grasp of Czech will prove quite difficult, it is still important to learn phrases like “thank you, ” “hello, ” “please, ” and “I didn’t know she charged money for her time, ” in case you’re in trouble. Make a copy of all essential travel documents such as your passport and health insurance. Keep the copies separate or leave them behind with someone you trust, in the event of an emergency. 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/F) Along with cash, bring a credit card as an emergency method of payment and make sure to take note of your credit card company’s customer service line in case of loss or theft. That way, you can cancel your card immediately and have a new one delivered to you while on your trip(if possible). A book to enjoy on a train ride or on the beach, a journal to record your experiences, and maps to educate yourself on the layout of the land(you can get these from a tourism bureau), can make a world of a difference. With these things in mind and a positive spirit, you are now officially ready to set out on your own. 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/ style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/G) You’ve taken the big step, said goodbye to family and friends, endured a long plane ride, and are finally in the place you dreamed of visiting…until now. You might be quite overwhelmed by your new surroundings, but there are ways to control these feelings of over-stimulation. Instead of being an outsider looking in, try to transform yourself into a relaxed traveler who is not held back by minor frustrations, such as long lines at the train station or delays in visiting hours of certain landmarks. If you planned accordingly, then you can afford to “waste” time at the busy tourist hotspots. Besides, you’re on vacation, and have nowhere to be! Another benefit of traveling alone is the ability to explore museums and engage in other time-consuming activities. There is no pressure to rush through exhibits or cut the visit short;pace yourself and take in the masterpieces, whether you’re art over or just a beginner. 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/ style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/H) Make an effort to walk everywhere—within reason, of course. This will help you get in touch with the area(so to speak)and observe the locals in their element. Using your legs also allows you to find interesting shops and cafes more easily than if you were on some poor-quality tour bus. Your goal should be to blend in, something a well-designed(and perhaps overpriced)tour won’t likely offer. Wear loose, tight clothing because the more comfortable you feel, the more willing you will be to stay out an extra hour to explore a section you might have overlooked. Remain enthusiastic, relaxed and prepared, and the stories you will have to share upon your return will be priceless. 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/ style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/I) Bring along a camera with lots of films. Leave your route with someone at home, along with the numbers of each place you’re staying at. It’s okay if your plans are sketchy, but if there is a big change in your plans, you might want to e-mail the new information to your “in case of emergency” person back home. Stay safe and keep an eye out when it comes to money or your belongings; you don’t have a companion to catch the pickpocket creeping up from behind. While having fun is important, so is safety. Be carefree, but don’t throw caution to the wind.

1.[选词填空]If you have problems with the foreign language, you should take a bilingual dictionary along.

2.[选词填空]Jucuzzi bath is not included in the services of youth hostels.

3.[选词填空]Poor-quality tour buses are less likely to take you to interesting shops and cafes. 

4.[选词填空]A tourism bureau may provide you with maps.

5.[选词填空]When you arrive at the destination, you should turn yourself into a relaxed traveler rather than an outsider.

6.[选词填空]According to the author, youth hostels are economical and tidy.

7.[选词填空]The author suggests that you should bring with you a change of clothing in your shoulder bag

8.[选词填空]Traveling alone has a benefit that you can enjoy visiting museums, although it may be time-consuming.

9.[选词填空]If you bring a credit card, make sure you take down the service number of the card company in case of loss or theft.

10.[选词填空]The city Prague is the capital city of Czech Republic.

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style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/ style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/B)Any type of exercise uses your muscles. Running, swimming, weightlifting—any sport you can imagine—uses different muscle groups to generate motion. In running and swimming, your muscles are working to accelerate your body and keep it moving. In weightlifting, your muscles are working to move a weight. Exercise means muscle activity! As you use your muscles, they begin to make demands on the rest of the body. In strenuous exercise, just about every system in your body either focuses its efforts on helping the muscles do their work, or it shuts down. For example, your heart beats faster during strenuous exercise so that it can pump more blood to the muscles, and your stomach shuts down during strenuous exercise so that it does not waste energy that the muscles can use. When you exercise, your muscles act something like electric motors. Your muscles take in a source of energy and they use it to generate force. An electric motor uses electricity to supply its energy. Your muscles are biochemical motors, and they use a chemical called adenosine triphosphate (ATP) for their energy source.
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/C)During the process of “burning” ATP, your muscles need three things: They need oxygen, because chemical reactions require ATP and oxygen is consumed to produce ATP. They need to eliminate metabolic wastes (carbon dioxide, lactic acid) that the chemical reactions generate. They need to get rid of heat. Just like an electric motor, a working muscle generates heat that it needs to get rid of. In order to continue exercising, your muscles must continuously make ATP. To make this happen, your body must supply oxygen to the muscles and eliminate the waste products and heat. The more strenuous the exercise, the greater the demands of working muscle. If these needs are not met, then exercise will cease—that is, you become exhausted and you won’t be able to keep going. To meet the needs of working muscle, the body has an orchestrated response involving the heart, blood vessels, nervous system, lungs, liver and skin. It really is an amazing system! 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/ style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/D)For your muscles—in fact, for every cell in your body—the source of energy that keeps everything going is called ATP. Adenosine triphosphate (ATP) is the biochemical way to store and use energy. The entire reaction that turns ATP into energy is a bit complicated, but here is a good summary: Chemically, ATP is an adenine nucleotide bound to three phosphates. There is a lot of energy stored in the bond between the second and third phosphate groups that can be used to fuel chemical reactions. When a cell needs energy, it breaks this bond to form adenosine diphosphate (ADP) and a free phosphate molecule. In some instances, the second phosphate group can also be broken to form adenosine monophosphate (AMP).
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/E)When the cell has excess energy, it stores this energy by forming ATP from ADP and phosphate. ATP is required for the biochemical reactions involved in any muscle contraction. As the work of the muscle increases, more and more ATP gets consumed and must be replaced in order for the muscle to keep moving. Because ATP is so important, the body has several different systems to create ATP. These systems work together in phases. The interesting thing is that different forms of exercise use different systems, so a sprinter is getting ATP in a completely different way from a marathon runner! ATP comes from three different biochemical systems in the muscle, in this order:
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/● phosphagen system
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/● glycogen-lactic acid system
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/● aerobic respiration
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/ style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/F)A muscle cell has some amount of ATP floating around that it can use immediately, but not very much--only enough to last for about three seconds. To replenish the ATP levels quickly, muscle cells contain a high-energy phosphate compound called creatine phosphate. The phosphate group is removed from creatine phosphate by an enzyme called creatine kinase, and is transferred to ADP to form ATP. The cell turns ATP into ADP, and the phosphagen rapidly turns the ADP back into ATP. As the muscle continues to work, the creatine phosphate levels begin to decrease. Together, the ATP levels and creatine phosphate levels are called the phosphagen system. The phosphagen system can supply the energy needs of working muscle at a high rate, but only for 8 to 10 seconds.
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/ style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/G)Muscles also have big reserves of a complex carbohydrate called glycogen. Glycogen is a chain of glucose molecules. A cell splits glycogen into glucose. Then the cell uses anaerobic metabolism (anaerobic means “without oxygen”) to make ATP and a byproduct called lactic acid from the glucose. About 12 chemical reactions take place to make ATP under this process, so it supplies ATP at a slower rate than the phosphagen system. The system can still act rapidly and produce enough ATP to last about 90 seconds. This system does not need oxygen, which is handy because it takes the heart and lungs some time to get their act together. It is also handy because the rapidly contracting muscle squeezes off its own blood vessels, depriving itself of oxygen-rich blood. There is a definite limit to anerobic respiration because of the lactic acid. The acid is what makes your muscles hurt. Lactic acid builds up in the muscle tissue and causes the fatigue and soreness you feel in your exercising muscles. 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/ style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/H)By two minutes of exercise, the body responds to supply working muscles with oxygen. When oxygen is present, glucose can be completely broken down into carbon dioxide and water in a process called aerobic respiration. The glucose can come from three different places:
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/● remaining glycogen supplies in the muscles;
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/● breakdown of the liver’s glycogen into glucose, which gets to working muscle through the bloodstream;
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/● absorption of glucose from food in the intestine, which gets to working muscle through the bloodstream.
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/Aerobic respiration can also use fatty acids from fat reserves in muscle and the body to produce ATP. In extreme cases (like starvation), proteins can also be broken down into amino acids and used to make ATP. Aerobic respiration would use carbohydrates first, then fats and finally proteins, if necessary. Aerobic respiration takes even more chemical reactions to produce ATP than either of the above systems. Aerobic respiration produces ATP at the slowest rate of the three systems, but it can continue to supply ATP for several hours or longer, so long as the fuel supply lasts.
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/ style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/I)So imagine that you start running. Here’s what happens: The muscle cells burn off the ATP they have floating around in about 3 seconds. The phosphagen system kicks in and supplies energy for 8 to 10 seconds. This would be the major energy system used by the muscles of a 100-meter sprinter or weight lifter, where rapid acceleration, short-duration exercise occurs. If exercise continues longer, then the glycogen-lactic acid system kicks in. This would be true for short-distance exercises such as a 200- or 400-meter dash or 100-meter swim. Finally, if exercise continues, then aerobic respiration takes over. This would occur in endurance events such as an 800-meter dash, marathon run, rowing, cross-country skiing and distance skating. When you start to look closely at how the human body works, it is truly an amazing machine!

1.[选词填空]Your muscles are working to move a weight when you are weightlifting.

2.[选词填空]Muscle cells contain a high-energy phosphate compound called creatine phosphate.

3.[选词填空]During the process of “burning” ATP, your muscles need to eliminate heat.

4.[选词填空]Glucose can be completely broken down into carbon dioxide and water when oxygen is present in the process called aerobic respiration.

5.[选词填空]Lactic acid makes your muscles hurt.

6.[选词填空]Aerobic respiration would occur in endurance events.

7.[选词填空]When you are starving, proteins can also be broken down into amino acids.

8.[选词填空]When the cell has excess energy, it stores this energy by forming ATP.

9.[选词填空]The body has several different systems to create ATP, because it is very important.

10.[选词填空]When you start running, the muscle cells bum off the ATP they have floating around in about 3 seconds.

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如果交易者( ),可考虑卖出玉米期货合约。

A预计玉米因风调雨顺将大幅增产

B预计玉米因气候恶劣将大幅减产

C预计玉米需求大幅上升

D预计玉米需求大幅下降

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style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/B)Despite the importance of rainforests, deforestation practices continue. Though the term can apply to natural causes like forest fires, it’s commonly linked to human activities, like logging, agriculture and mining—all important for our economy. But by stripping (剥夺) the land of these resources, we must accept the consequences of our actions. Chopping down rainforests increases the likelihood of soil erosion, landslides and flooding. It also decreases biodiversity and medical resources. More than 25 percent of modem medicine is derived from rainforest plants, and only 1 percent of rainforest plant species have been studied for potential medicinal uses. Deforestation also destroys the homelands of indigenous cultures and affects the livelihoods of millions of other people, many of whom live in the world’s poorest regions.
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/C)In an effort to counteract this destruction, conservation efforts are blossoming across the globe. Among these are reforestation projects, aimed at increasing the amount of living trees and physically linking remaining forests together, to combat habitat loss and prevent species extinction. There are many challenges facing these projects. Firstly, rainforests are full of ancient, gigantic trees; these aren’t the saplings you buy at your local nursery. Much of the action of a rainforest’s ecosystem takes place in the lofty upper reaches, which can present problems for reforestation efforts since towering trees take decades to grow. Secondly, rainforest trees closely rely on their evolutionary playmates—the surrounding flora and fauna—to create the delicate conditions needed to sustain functions such as nutrient cycles and pollination.
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/D)So while rainforests provide a flourishing (欣欣向荣的) habitat for life, the success of that habitat relies on a fragile balance of ecological factors. Take away the trees and you have a major problem. But if the soil’s bacteria and other microorganisms (微生物), which break down the nutrient-rich organic matter that tumbles to the dark forest floor, are also eliminated, the rainforest is destroyed. If the insects and birds that act as critical pollinators go extinct, life will falter. So, can we push up our sleeves, grab a shovel, dig in and just start replanting the rainforests? To a certain extent, we can. However, while efforts at reforestation have significant value, they’re usually not as crucial as preserving existing rainforests. Rainforest conservation is just as important as trying to reforest other areas.
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/E)Reforestation can be accomplished by nature, by humans or through a combination of the two. Some reforestation efforts focus on growing forests quickly because these woodlands are key to many of Earth’s natural cycles, such as the carbon and water cycles. Replanting deforested land with quick-growing exotic tree species, like eucalyptus or Australian acacia, can help solve immediate problems such as soil erosion and elevated carbon levels. However, exotic trees may make the land unsuitable for future rainforest cultivation by changing the soil’s original characteristics. Scientists need to study individual situations to determine what type of impact each foreign species will make on the area’s microbial life, and what the appropriate choices are for reforestation. On a positive note, fast-growing secondary forests and tree farms can replace primary forests as a source for agricultural and energy needs. 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/F)A primary forest is basically one that’s undisturbed by humans and has suffered very few ecological disruptions (中断). There are several other names for a primary forest, such as old growth and primeval forest. A secondary forest is one that has regrown after a destructive event, like a fire or logging. Primary forests usually have much higher levels of biodiversity than secondary ones, which is part of the reason conservationists are trying to save old growth. In areas where deforestation is severe, remaining patches of primary forests are often located at great distances from other surviving rainforests or reforested regions. This makes animal survival and recolonization, as well as plant cross-pollination, difficult and can impede efforts to sustain actual rainforest ecology. Although the parcels of vegetative land can increase the chance of some species’ short-term survival, researchers say the species are likely doomed to extinction over the long term.
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/G)One-way conservationists seek to protect rainforest species is to reforest the corridors of trees that lie between rainforest parcels. This gives plants and animals access to a larger habitat and the chance to mix with other populations, which can boost their genetic diversity and help prevent extinction through isolation for most species. Conservationists can help cultivate these arboreal arteries into supportable rainforest habitats by working to have these corridors widened. The wider the corridors are, the safer they become for migrating animals to use.
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/H)It’s also important to reforest and enlarge areas adjacent to these surviving parcels. This provides an easy means for species to inhabit new territory and expand viable rainforest ecology. Researchers are exploring several options for improving and easing reforestation efforts. One inventive method involves bats. Installing man-made bat roosts in deforested areas can encourage these uniquely flight-enabled mammals (like the spectacled flying fox) to spread seeds and begin the process of rainforest regeneration. Activities like installing bat roosts are examples of how people are a part of natural reforestation efforts. Reforestation efforts are sprouting up all around the world. 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/I)Numerous conservation groups are working to preserve, enlarge and connect the world’s rainforests. Let’s take a closer look at some of those projects. Rwanda’s government and various ecological groups are paying special attention to the Gishwati Forest Reserve. Once a vast rainforest, activities such as deforestation and refugee resettlement reduced it to a fraction of its original size around the turn of the century. Since then, reforestation has somewhat increased the size of the forest, but it remains a sliver of its original size. A project called the Rwandan National Conservation Park is gaining momentum, and those people involved with the project are working to bring the rainforest back and connect it with larger, surviving rainforests nearby. These individuals and organizations are looking to accomplish this through the use of wide tree corridors. They also plan to increase the acreage of the core forest and study the ecology of the forest’s animals, particularly its chimpanzees.

1.[选词填空]Reforesting the corridors of trees that lie between rainforest parcels provides an easy means to inhabit new territory and expand viable rainforest ecology.

2.[选词填空]Around the turn of the century, there was a vast rainforest in Rwanda reduced its original size by deforestation and refugee resettlement.

3.[选词填空]Forest fires, farming and mining destroy the rainforests.

4.[选词填空]The quick-growing exotic tree species are replanted in the deforested land because they can help prevent soil erosion.?

5.[选词填空]To encourage bats spread seeds is the function of installing man-made bat roosts in deforested areas.

6.[选词填空]Rainforest trees tightly rely on microorganisms

7.[选词填空]If the soil’s bacteria and other microorganisms are also eliminated, the rainforest is destroyed.

8.[选词填空]Conservation groups all around the world are working to preserve,enlarge and connect the world’s rainforests.

9.[选词填空]One of the purposes of reforestation projects is to protect the habitat and prevent species loss.

10.[选词填空]Conservationists are trying to save primary forests because they have much higher levels of biodiversity.

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style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/ style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/A) One significant impact of human activity is marine pollution. The most visible and familiar is oil pollution caused by tanker accidents and tank washing at sea, and in addition to the gross visible short-term impacts, severe long-term problems can also result. In the case of the Exxon Valdez which ran onto a shore in Alaska in 1989. Biological impacts from the oil spill can still be identified l5 years after the event. The Prestige which sank off the Spanish coast late in 2002, resulted in huge economic losses as it polluted more than l00 beaches in France and Spain and effectively destroyed the local fishing industry. 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/B) Despite the scale and visibility of such impacts, the total quantities of pollutants entering the sea from the long line of catastrophic oil spills appeared small compared with those of pollutants introduced directly and indirectly from other sources(including domestic sewage, industrial discharges, leakages from waste tips, urban and industrial ran-off, accidents, spillages, explosions, sea dumping operations, oil production, mining, agriculture nutrients and pesticides, waste heat sources, and radioactive discharges). Land based sources are estimated to account for around 44 percent of the pollutants entering the sea and atmospheric inputs account for an estimated 33 percent. By contrast, transport on the sea accounts for l2 percent. 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/ style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/C) The impacts of pollution vary. Nutrient pollution from sewage discharges and agriculture can result in unsightly and possibly dangerous “blooms” of algae(藻类)in coastal waters. As these blooms die and decay they use up the oxygen in the water. This has led, in some areas, to “creeping dead zones” (CDZ), where oxygen dissolved in the water falls to levels unable to sustain marine life. Industrial pollution also contributes to these dead zones. 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/Gone fission(裂变)
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/D) Radioactive(放射性的)pollution has many causes, including the normal operation of nuclear power stations, but by far the single biggest sources of man-made radioactive elements in the sea are the nuclear fuel reprocessing plants at La Hague in France and at Sellafield in the UK. Waste released from them has resulted in the widespread pollution of living marine resources over a wide area; radioactive elements traceable to reprocessing can be found in seaweeds as far away as the West Greenland Coast. 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/ style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/E) Trace metal pollution from metal mining, production and processing industries can damage the health of marine plants and animals and render some seafoods unfit for human consumption. The contribution of human activities can be very significant:the amount of mercury introduced to the environment by industrial activities is around four times the amount released through natural processes such as weathering and erosion(腐蚀). The input of man-made chemicals to the oceans potentially involves an overwhelming number of different substances. 63, 000 different chemicals are thought to be in use worldwide with 3, 000 accounting for 90 percent of the total production amount. Each year, anywhere up to1,000 new synthetic chemicals may be brought onto the market. Of all these chemicals some 4,500 fall into the most serious category. These are known as persistent organic pollutants(POPs). They’re resistant to breakdown and have the potential to accumulate in the tissues of living organisms (all marine life), causing hormone disruption which can, in turn, cause reproductive problems, induce cancer, suppress the immune system and interfere with normal mental development in children. 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/F) POPs can also be transported long distances in the atmosphere and deposited in cold regions. As a result, Inuit populations who live in the Arctic a long distance from the sources of these pollutants are among the most severely influenced people on the planet, since they rely on fat-rich marine food sources such as fish and seals. POPs are also thought to be responsible for some polar bear populations failing to reproduce normally. 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/ style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/G) Scarily, seafoods consumed by people living in warm and mild regions are also affected by POPs. Oily fish tend to accumulate POPs in their bodies and these can be passed to human consumers. When oily fish are rendered down into fish meal and fish oils and subsequently used to feed other animals, then this too can act as a pathway to humans. Farmed fish and shellfish, dairy cattle, poultry and pigs are all fed fish meal in certain countries, and so meat and dairy products as well as fanned and wild fish can act as further sources of these chemicals to humans. 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/ style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/H) The Noah and Baltic Seas also contain some of the world’s busiest shipping lanes. 200, 000 ships cross the North Sea every year. Many goods transported by ships are hazardous(half the goods carded at sea can be described as dangerous)and loss of dangerous cargoes can result in damage to the marine environment. Chemical tank washings, discharge of oily wastes and wash waters are all significant sources of marine pollution. In addition there is always the risk of a major oil spill, a risk made worse by the fact that some of the tankers that routinely travel through still have only one body-frame or have other technical defects and crews who are poorly educated. In November 2002, the Prestige oil tanker went down off the coast of Spain with70, 000 tons of oil on board which polluted 2,890 km of coastline. A few days earlier it had been crossing the Baltic. 
style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/ style=margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);/I) Some sources of pollution have been brought under control by international legislation. Countries which signed the London Convention have agreed to stop the dumping of radioactive and industrial waste at sea. The OSPAR Convention regulates marine pollution in the North East Atlantic Region while countries which signed the Stockholm Convention have committed themselves to the phase out of a number of persistent organic pollutants. Within the European Community, the Water Framework Directive may be expected to bring further reductions in polluting inputs, although it will be over a very long time frame. The additional benefit of the new EU REACH(Registration Evaluation and Authorisation of Chemicals) initiative, which aims to regulate the production and use of dangerous chemicals at source, remains to be seen.

1.[选词填空]Oil pollution is mentioned as the most visible and familiar marine pollution.

2.[选词填空]About one-third of the pollutants entering the sea come from atmospheric inputs.

3.[选词填空]The Inuit people depend on fat-rich marine life for food.

4.[选词填空]Hormone disruption in marine life is the result of accumulation of POPs.

5.[选词填空]4500 synthetic chemicals can be classified as POPs

6.[选词填空]The regulation of marine pollution in the North East Atlantic Region is based on the OSPAR Convention.

7.[选词填空]Marine life dies in creeping dead zones because of the lack of oxygen.

8.[选词填空]In warm and mild regions, farmed fish and shellfish are also affected by POPs because they are fed fish meal.

9.[选词填空]As long as 2890 km of coastline had been polluted by the oil spill of the Prestige oil tanker.

10.[选词填空]The West Greenland Coast has been polluted by radioactive elements.

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