A.The success of animal experiments should be ensured. |
B.A ban on the use of animals in the lab should be enforced. |
C.Greater efforts need to be taken to reduce the number of lab animals. |
D.Scientists should be required to share their research results with each other. |
A.America uses only about 1.1 million lab animals per year. |
B.Europe does not use mice and rats as lab animals at all. |
C.Britain does not use as many lab animals as China does. |
D.Japan has less comprehensive data on the number of lab animals used each year. |
A.Statistical studies. |
B.Computer models. |
C.DNA planted in animals. |
D.Tissue from dead animals. |
A.They are not revealed to the public. |
B.They are made into teaching materials. |
C.They are collected for future publication. |
D.They are not removed from the research topic list. |
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A.terrble | B.fierce | C.clever | D.lovely |
A.it was mistaken for another species |
B.it was active in the eveing |
C.it was too small to be seen clearly |
D.it covered itself by its long tail |
A.Having been studying olingos for ten years. |
B.The short video the animal expert made. |
C.His communication with an expert in Ecuador. |
D.Differences between olingos and olinguitos. |
A.the olinguito could be made full use of |
B.the number of olinguitos is in the conutrol |
C.the clinguito is a completely new species up to now |
D.people know more and more about animals |
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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 |
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. |
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 |
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 |
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A.a(chǎn)dmit he is a foreigner |
B.save much time for himself |
C.prevent himself from being laughed at |
D.a(chǎn)void getting upset in communicating with others |
A.It is quite different from what the natives speak. |
B.It is taught in boring and wrong grammar. |
C.It has nothing to do with English. |
D.It has too small a vocabulary. |
A.speaking bravely | B.listening carefully |
C.using what you have learned | D.making few mistakes |
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A.were invented by European armies |
B.have a history of more than 2,800 years |
C.used to supply power to radio in remote areas |
D.have rarely been used since electricity was discovered |
A.Sailing a boat. |
B.Producing electricity. |
C.Grinding wheat into flour. |
D.Pumping water from underground. |
A.wind power is cleaner |
B.it is one of the oldest power sources. |
C.it was cheaper to create energy from wind |
D.the supply of coal and gas failed to meet needs |
A.The advantages of wind power. |
B.The design of wind power plants. |
C.The worldwide movement to save energy. |
D.The global trend towards producing power from wind. |
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A.By the food he ate. | B.By doing further experiments. |
C.By observing other polar bears. | D.By his lying position in death. |
A.easily hurt | B.difficult to hunt |
C.dangerous | D.a(chǎn)mazing |
A.Favorable. | B.Uncaring. |
C.Doubtful. | D.Concerned. |
A.A novel. | B.A guidebook. |
C.A news report. | D.An advertisement. |
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A.get the ideas | B.save time | C.understand better | D.learn well |
A.the method that you like | B.your reading material |
C.your reading purpose | D.both B and C |
A.reading very fast |
B.looking carefully |
C.reading only the main points |
D.reading some parts of the material |
A.when you read a story for enjoyment |
B.when you go over a lesson that you have already known well |
C.when you read the directions before using a camera which is expensive |
D.when you wish to find a lost place that you have read |
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A.trash producers | B.great spenders | C.pressure makers | D.poor customers |
A.show how skyscrapers manage to lessen their pressure |
B.explain why skyscrapers can control its air conditions |
C.describe further how wasteful skyscrapers could be |
D.present the stability of skyscrapers in modern buildings |
A.central New York skyscrapers are a large waste water producer |
B.the central area of New York is as large as the city of Stanford |
C.more than 109,000 people live in the skyscrapers in New York |
D.New York produces 2. 25 million gallons of waste water each year |
A.positive | B.doubtful | C.grateful | D.negative |
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A.produce bottled water includes the energy required to drink it |
B.distribute bottled water includes the energy for producing the bottles |
C.distribute bottled water is much smaller than the energy for treating it |
D.produce bottled water is much smaller than the energy for producing tap water |
A.to fill tap water into the plastic bottles directly |
B.to replace the plastic bottles with metal containers |
C.to produce lightweight bottles with recycled materials |
D.to use bicycles to transport and deliver bottled water locally |
A.Treatment of bottled water needs no energy input at all. |
B.Bottled water production is an energy intensive process. |
C.Transportation of bottled water takes up the most energy input. |
D.Production of the plastic bottles greatly dominated the energy input. |
A.there are two main kinds of bottled water in the US |
B.world consumption of bottled water has been increasing |
C.transportation costs have something to do with the mode of transport |
D.bottled water produced in Spring is more expensive than purified water |
A.To help consumers themselves make more environmentally sustainable choices. |
B.To advise the government to take severe measures to stop producing bottled water. |
C.To urge the consumers to drink tap water instead of bottled water for the sake of the earth. |
D.To try the best to find ways to produce bottled water cheaply and quickly for the companies. |
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