题目内容

Large quantities of solid fuel consumed every day and too much carbon dioxide is sent into the air, which in turn _ the going up of temperature.

A.
is; results in
B.
are; results in
C.
is; leads to
D.
are; results from

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－Why does the Lake smell terrible?

－Because large quantities of water .

A. have polluted B. is being polluted C. has been polluted D. have been polluted

As if there weren’t enough of them in the world already, scientists have succeeded in cloning flies. The alike fruit flies are the first insects ever cloned, says the Canadian team that created them. The question everyone asks is why anyone would want to clone flies in the first place. She hopes that the insects , which are very easy to experiment with , will help to adjust the cloning process in other animals and even in humans, where the technique is being researched to aid production of therapeutic (治疗的) stem cells.
In cloning, the DNA-containing nucleus of an adult cell is injected into an egg whose own nucleus(细胞核) has been removed. At the moment, the majority of cloned mice, sheep and other animals die before birth. It is thought this is because the adult DNA is not properly ‘reprogrammed’.
Using flies, researchers might discover genes that are important for this reprogramming, and that have matches in other animals. That is because it is relatively easy in flies to knock out the function of a single gene and then attempt cloning with these cells, which will test whether that gene is important. If such genes are confirmed, then in theory cloned mammalian embryos(晶胚) might be grown in selected solutions that change the activity of those genes to improve the technique’s success rate. Although some groups have attempted to clone insects before, Lloyd says this is the first time it has been successful. The team used a slight difference on the standard cloning process: they transferred nuclei taken from embryos rather than fully-grown adult cells. They sucked several nuclei (pl)out of developing fly embryos, and injected them into a fertilized(已受精的) fly egg. From over 800 early attempts, they cloned five adult insects, the group reports in the journal Genetics.
【小题1】The best title of this passage probably is _______.

A．The importance of clone

B．First insects are cloned

C．The disagreement in clone

D．The advantages of clone

【小题2】The scientists cloned flies because________.

A．there are fewer and fewer flies in the world

B．flies are easy to find and cheap to use

C．they can gain some experience before cloning other animals

D．it is safe to clone flies

【小题3】The failure of most cloned animals is due to _______.

A．the difference of other animals’ genes

B．the improper technique of clone

C．the complex of other animals

D．the improper rearrange of the adult gene

【小题4】It can be inferred from the last paragraph that ______.

A．the clone of insects before used grown-up cells

B．the clone of insects were never experimented before

C．this time scientists cloned flies successfully and easily

D．based on this success, other animals will be cloned in large quantities.

（B）
The U．S．birthrate began to decline in the middle 1950’s, resulting in a smaller college age population starting in the middle 1970’s．Something else happened in the 1970’s: the price of oil increased greatly, driving up the price of almost everything and making Americans aware that their large automobiles used a lot of gasoline．At the same time, foreign car manufacturers had begun to produce small fuel efficient cars in large quantities for the export market．Suddenly, the large, gas guzzling American cars were no longer attractive to American buyers, who began buying foreign cars by the thousands．The American automobile industry went into a recession．Thousands of automotive workers were laid off, as were thousands of people in industries indirectly connected with the auto industry．
People who are laid off tend to keep what money they have for necessities, like food and housing．They do not have the extra money needed to send their children to college．Their children cannot pay their own college costs, because during a recession they cannot find jobs．High unemployment means that more state funds must be used for social service-----unemployment benefits, and to aid dependent children, for example-----than during more prosperous times．It also means, that the states have fewer funds than usual, because people are paying fewer taxes．Institutions of higher education depend on two major sources of income to keep them functioning: tuition from students and funds from the states．At the present time, there are fewer students than in the past and fewer state funds available for higher education．The colleges and universities are in trouble．
60．What is the main idea of this passage??
A．The rising of oil price drove up the price of everything．
B．There were many reasons why higher education was in trouble in the 1970’s．
C．Birthrate began to decline in the USA in 1950’s．
D．High unemployment caused a lot of social problems．
61．American cars were not popular in their domestic markets because they were____．
A．small B．gas consuming
C．fuel efficient D．not attractive
62．The colleges and universities were in trouble because of the following reasons except that ____．
A．they couldn’t get enough income to keep them running
B．young people couldn’t afford the tuition fees
C．keeping them running at the same level would cost much more
D．social services need more state funds because of the recession
63．All of the following statements are true EXCEPT ____．
A．young people couldn’t afford their own tuition in the 1970’s
B．it’s difficult for graduates from colleges to find a job in the 1970’s
C．fewer parents could afford to send their children to college because of the recession in 1970’s
D．Birthrate dropped in the 1970’s because of the recession

The fourth round of heavy smog to hit Beijing in four weeks has sent more people to the hospital with respiratory (呼吸的) illnesses and led to calls for laws to control the pollution.

Pan Shiyi, a celebrity, said he is planning to propose a Clean Air Act to the local government. As a representative to the Beijing Municipal People's Congress, he started an online survey at 9:20 a.m. Within three hours, more than 25,000 web users, or 99 percent of total respondents (应答者) , welcomed his proposal.

They have good reasons to stand alongside Pan. The latest round of haze（雾霾）reduced visibility to under 500 meters in many parts of the city. The smog has also led to a great increase in respiratory illnesses, particularly among children and the elderly. Anxious parents and doctors almost all blame the smoggy air for the illnesses. Though most schoolchildren are home for the winter holidays, the bad air can easily move indoors. Besides, ordinary medical masks fail to provide enough protection, so some people have turned to gas masks.

The causes of the frightening smog are rather mysterious, though experts blame too much emissions (排放) and the mountains around Beijing that trap pollution in winter, unless there is enough wind to clear it away. Some critics blamed China’s top two oil firms, China National Petroleum Corp and China Petrochemical Corporation, saying the companies’ outdated production technologies produce large quantities of high-polluting gas fuel.

Meanwhile, some Beijingers have moved their brainstorming discussion to computers. If Pan’s proposal for a Clean Air Act is adopted, netizens say the new law should include items providing for “car-free days” in times of smog, higher standards for vehicle fuel, stricter limit to industrial and engine gas emissions, and more effective protection for the public.

Beijing is not the only city that has ever lost the blue sky. Five days of thick fog caused thousands of deaths in Britain in December 1952, urging the government to pass the first Clean Air Act in 1956, which introduced smokeless zones and cleaner fuels to reduce pollution. That may provide some experience for Beijing to refer to.

1.Why did Pan Shiyi started an online survey?

A. To know the public’s opinions on pollution

B. To tell people the danger of the smoggy weather

C. To call on people to support his proposal

D. To collect supporting evidence for his proposal

2.What can we learn from the passage?

A. People are clear about the causes of the smoggy weather.

B. Children staying indoors will not get respiratory illnesses.

C. Smog is worse for people with lower resistance to diseases.

D. Masks can give people protection against the smoggy weather.

3.Britain is mentioned in the last paragraph to ______.

A. suggest Beijing should learn from other countries

B. let people know many places have this problem

C. tell people the situation in Britain is worse

D. call on the government to pass Britain’s Clean Air Act

4. What’s the best title for this passage？

A. The Use of Gas masks and Engines

B. Beijingers Call for Clean Air Act

C. Effective Protection for Blue Sky

D. The Mysterious Causes of the Scary Smog

句子填空（共10小题，每小题1分，满分10分）

根据句子意思，从所给的15个词汇中选出合适的词或短语并用适当的形式填空。

challenge	be strict with	predict	a number of	attract
possess	optimistic	depend on	crime	uncertain
treat	consist of	delight	typical	pollute

1.Don’t ___________ me as a child. I’m already in my twenties.

2.--- Could you do me a favor?

--- It ____________ what it is.

3. I am ___________ about what to do next. Can you tell me about it?

4. --- Why does the lake smell terrible?

--- Because large quantities of water _________________.

5.We all hope that our teachers ________________ us so that we can learn more.

6.To our ___________, our class won the game very easily.

7. It is _____________ that we will have a much colder winter this year.

8.Pollution of the environment is one of the most ____________ we face today.

9.The main function of advertisements is ______________ customers to buy the goods.

10. It is simply a ___________ for us students to waste so much food and water.

Large quantities of solid fuel ______consumed every day and too much carbon dioxide is sent into the air, which in turn _______ the going up of temperature.

试题分类

Large quantities of solid fuel consumed every day and too much carbon dioxide is sent into the air, which in turn _ the going up of temperature.