According to scientists, people sneeze because________

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  A . unavoidable B . unchangeable C . unbelievable D . unpredictable

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• Since many insects have already become（）to DDT, scientists have to look for some new insecticide

  A、active B、resistant C、tough D、gradual

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• Scientists have to _______ past experiences in making new ideas.

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• According to the passage, scientists have discovered that influenza viruses_____.

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• His initial success ________ his resolve to be a scientist.

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• Mny high school studentsre determined to become scientists.RightB．WrongCMny high school studentsre determined to become scientists.Right B．Wrong C．Not mentioned

  A．Right B．Wrong C．Not mentioned

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• Every year a certain number of scientists and technologists are sent to the countryside to solve the problems（）farmers.

  A.in conjunction with B.apart from C.as such D.on the threshold

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• If a scientist speaks for a product, what category of ads does it most likely belong to？

  A．The first category. B．The second category. C．The third category. D．Another the author failed to conclude. 此题为多项选择题。

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• 32 Scientists study how photosynthesis works because they want to_____.

  A improve the efficiency of it. B turn plant sugars to a new form. of energy. C get more sugars and starches from plants. D make green plants a new source of energy.

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• ？？Scientists resist talking about their options because they don&39;t want people to______？？

  A.know what they are doing B.feel their efforts are useless C.think the problem has been solved D.see the real problem

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• If science is to advance, scientists need the ______ and the ______ to let their imaginations roam.

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• To test whether plants are a sot,roe of methane, the scientists created

  A.a oxygen-free environment B.an environment with the same concentration of oxygen as the Earth has C.a carbon dioxide-free environment D.an environment filled with the greenhouse gas

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• Scientists are pushing known technologies to their limits in an attempt to ________mo

  A．A.extract B．B.inject C．C.discharge D．D.drain

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• Scientists are working on programs to predict where and when an earthquake will occur.（翻译)

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• Very few scientists _________ completely new answers to the world’s problems.

  A．come up with B．come out C．come round D．come up to

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• Almost Human？ Scientists are racing to build the world’s first thinking robot .This is not science fiction：some

  say they will have made it by the year 2020.Carol Packer repots. Machines that walk，speak and feel are no longer science fiction.Kismet is the name of an android(机器人)which scientists have built at the Massachusetts Institute of Technology(MIT).Kismet is different from the tradition。al robot because it can show human emotions.Its eyes.ears and lips move to show when it feels happy.sad or bored.Kismet is one of the first of a new generation of androids—robots that 100k like human beings—which can imitate human feelings.Cog，another android invented by the MIT, imitates the action of a mother However,scientists admit that so far Cog has the mental ability of a two year old. The optimists(乐观主义者)say that by the year 2020 we will have created humanoids(机器人)with brains similar to those of an adult human being.These robots will be designed to look like people to make them more attractive and easier to sell to the public.What kind of jobs will they do？ In the future，robots like Robonaut ，a humanoid invented by NASA，will be doing dangerous jobs，like repairing space stations They will also be doing more and more of the household work for US.In Japan，scientists are designing androids that will entertain US by dancing and playing the piano. Some people worry about what the future holds：will robots become monsters(怪物)？Will people themselves become increasingly like robots？ Experts predict that more and more people will be wearing micro-computers，connected to the Internet，in the future.People will have micro-chips in various parts of their body，which will connect them to a wide variety of gadgets(小装置).Perhaps we should not exaggerate(夸大)the importance of technology，but one wonders whether , in years to come，we will still be falling in love，and whether we will still feel pain.Who knows？ 第11题：Kismet is different from traditional robots because A．it thinks for itself B．it is not 1ike science fiction C．it Can 100k after two-year—olds D．it seems to have human feelings

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• Scientists have found various kinds of methods to solve the problem of global warming.

  A．Y B．N C．NG

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• What does not belong to the studying method taken by scientists？

  A．They bury measuring device 3 kilometers under the volcano floor. B．They observe carefully the change of the mountain's position. C．They also observe activities of the earth when it changes. D．Devices are placed within 20 kilometers of Mount St．Helens.

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• Nowadays scientists are working hard to find out ______ to do with air pollution. A．how B．why C．when D．what

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• Scientists have known how to h______ (治理，利用) the limitless power of the sun.

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• What are the views on the social responsibilities of scientists according to the passage?

  A．Keep the public informed and especially to advise politicians and other influential persons. B．The scientists should make the technological assessment of foreseeable benefits and harmful effects. C．One thing scientists can and should do is to counteract the tendency of the news media to exaggererate and sensationalize new developments. D．A scientist should be responsible for presenting a？ true picture to the public about new developments in his own field,and for indicating possible implications so far as he can see them. 此题为多项选择题。

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• Political scientists' job is to examine the political problem and come up with policy recommendations to solve the problem.（ ）

  A:对 B:错

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• Which is one thing that scientists would like to find out about the wood frog（）

  A．Whether it becomes frozen in the spring B．How its heart starts again when it unfreezes C．Which parts of its body freeze in cold weather D．Why it takes so long to unfreeze at the end of winter

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• Scientists think a fidgeting habit to be ______（）

  A．a way to lose fat B．a nervous habit annoying the people around C．a better kind of exercise than slow running D．a habit of thin people

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