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    In August, environmentalists in the Philippines vandalized (肆意破坏 ) a field of Golden Rice, an experimental grain whose genes had been modified. Its seeds will be handed out free to farmers. The aim is to improve the health of children in poor countries by reducing vitamin A deficiency, which contributes to hundreds of thousands of premature deaths and cases of blindness each year.
style=color: rgb(51, 51, 51); font-family: "Microsoft YaHei"; white-space: normal; background-color: rgb(250, 250, 250);/    Environmentalists claim that these sorts of actions are justified because genetically modified crops pose health risks.Now the main ground for those claims has crumbled. Last year a paper which was published in a respected journal found that unusual rates of tumours and deaths in rats that had been fed upon a variety of genetic modification(GM) (转基因) corn.Other studies found no such effects. But this one enabled campaigners to make a health-and-safety argument against GM crops--one persuasive enough to influence governments. After the study appeared, Russia suspended imports of the grain in question. Kenya banned all GM crops. And the French prime minister said that if the results were confirmed he would press for a Europe-wide ban on the GM corn.
style=color: rgb(51, 51, 51); font-family: "Microsoft YaHei"; white-space: normal; background-color: rgb(250, 250, 250);/    There is now no serious scientific evidence that GM crops do any harm to the health of human beings. There is plenty of evidence, though, that they benefit the health of the planet. One of the biggest challenges facing mankind is to feed the 9 billion-10 billion people who will be alive and richer in 2050. This will require doubling food production on roughly the same area of land, using less water and fewer chemicals. It will also mean making food crops more resistant to the droughts and floods that seem likely if climate change is as bad as scientists fear.
style=color: rgb(51, 51, 51); font-family: "Microsoft YaHei"; white-space: normal; background-color: rgb(250, 250, 250);/    If the Green revolution had never happened, and yields had stayed at 1960 levels, the world could not produce its current food output even if it ploughed up every last acre of cultivable land.In contrast, GM crops boost yields, protecting wild habitat from the plough.They are more resistant to the vagaries of climate change, and to diseases and pests, reducing the need for agrochemicals. Genetic research holds out the possibility of breakthroughs that could vastly increase the productivity off arming. Vandalizing GM field trials is a bit like the campaign of somereligious leaders to prevent smallpox inoculations: it causes misery, even death, in the name of unscientific belief.

1.[单选题]The phrase "contributes to" (Para.1 ) probably means_______

A.brings to

B.leads to

C.results from

D.introduces into

2.[单选题]It can be inferred from Para.2 that_______

A.the actions of environmentalists are reasonable

B.many studies have found the bad effects of GM crops

C.the study has aroused fierce arguments about GM crops

D.the French bans all GM crops

3.[单选题]What is the author' s attitude toward genetically modified crops?

A.Critical.

B.Supportive.

C.Disinterested.

D.Ambiguous.

4.[单选题]Which of the following is NOT true according to Para.4?

A.GM crops boost the output.

B.GM crops are helpful to the wild habitat.

C.GM crops are more resistant to various disasters.

D.GM crops could vastly increase the productivity of farming.

5.[单选题]In 2050, one of the biggest challenges of mankind is_______

A.to provide food for at least 9 billion people

B.to develop more cultivable land

C.to produce treble food on roughly the same area of land

D.to prevent droughts and floods

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下列关于我国期货交易所集合竞价的说法正确的是( )。

A收盘集合竞价在开盘前10分钟内进行

B开盘集合竞价在开盘前5分钟内进行

C收盘集合竞价在收盘前5分钟内进行

D开盘集合竞价在开盘前10分钟内进行

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同时买入和卖出()种或()种以上期货合约的指令称为套利指令。

A两,两

B三,三

C四,四

D五,五

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结算时,交易所将会员的手续费、税金等各项费用从会员的( )中直接扣划。

A交易保证金

B结算准备金

C交易准备金

D资金账户

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某交易者以3780元/吨卖出10手白糖期货合约,之后以3890元/吨的价格全部平仓,这笔交易( )元。(不计手续费等费用)

A亏损5500

B亏损11000

C盈利5500

D盈利11000

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关于交易手续费,下列说法不正确的是( )。

A是期货交易所按成交合约金额的一定比例或按成交合约手数收取的费用

B不同的期货交易所有不同的规定

C由中国证监会统一规定

D交易手续费过高,可起到抑制过度投机的作用

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style=text-align: justify; style=text-align: justify; style=text-align: justify; style=text-align: justify;

1.[单选题]The author seems _____.

A.to be enthusiastic about Project Tiger

B.to have a matter-of-fact attitude towards Project Tiger

C.to have a hostile attitude towards Project Tiger

D.to be satisfied with Project Tiger

2.[单选题]Studies have shown that ______.

A.a tigress never attacks until attacked

B.the tigress is not as fierce as the tigers

C.a tiger usually fights another tiger to defend its own territory

D.the tiger is not an efficient hunter as is commonly described

3.[单选题]The ultimate aim of Project Tiger is to _____.

A.study the growth rate of tigers

B.protect tigers from being killed

C.promote the breeding of young tigers

D.analyze the behavioral patterns of tigers

4.[单选题]Some people are afraid that Project Tiger _____.

A.has been carried too far

B.has not received enough attention

C.has failed to achieve its goal

D.is not worth the money spent on it

5.[单选题]According to the passage, a tiger"s territory _____.

A.remains unchanged

B.is often defended by tigresses

C.expands as the tiger grows up

D.is the cause of most fights

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1.[单选题]What was Smith’s key idea?

A.That he should focus on passenger service.

B.That package delivery should be separate from passenger service.

C.That packages could be delivered on other companies’ planes.

D.That passenger service had to be efficient.

2.[单选题]What is stated in the passage about Smith’s term paper?

A.Smith submitted it through a delivery service.

B.It was written by a student of Smith’s.

C.The grade was not quite satisfactory.

D.The professor thought it had great potential.

3.[单选题]The most appropriate title for this passage is ”_____”.

A.The Problems and Frustrations of a Business Student

B.The Importance of Business Studies

C.The Capitalization of Federal Express

D. The Implementation of a Successful Business

4.[单选题]It can be inferred from the passage that Smith selected Memphis as his hub city because it____.

A.was near the middle of the country

B.had a large number of passenger aircraft

C.already had a large package delivery service

D.was a favorite passenger airport

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下列关于商品期货合约交易单位的说法,正确的有( )。

A商品的市场规模较大,交易单位应该较大

B商品的市场规模较大,交易单位应该较小

C交易者的资金规模较大,交易单位应该较大

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