Some scientists believe that hibernation is started by______.
A．a lack of food
B．calcium deposits
C．a body chemical
D．a lack of water
时间：2023-09-10 02:03:42
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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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Some alternative ways for scientists to do their research:a) Using ________.b) Using ________.
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Some people believe that giving gifts is one way __________ by others.
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They have got some approach that they believe is _________ in trying to solve these problems.
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原文:科学家们认为, 计算机不可能在所有领域中都代替人。译文: Scientists do not believe that computers can replace man in every field.
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On the 5th day of the 5th lunar month, Mongolians believe it is the date for them to worship fire.
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Identifying Patterns of DevelopmentEven if some people believe that there are some disadvantages brought by the Internet, they cannot deny the fact that it brings more advantages.
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John doesn‘t believe in ________ medicine； he has some remedies of his own.
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John doesn’t believe in ________ medicine; he has some remedies of his own.
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Scientists believe that a large meteor hit the earth thousands of years ago.
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The truth ________ the moon orbits the sun is doubted by some scientists.
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As some scientists have found, the vigorous exercise can make nerve cells to form. interconnected webs that make the brain run ______.
A．steadily and more effectively
B．faster and more efficiently
C．more powerfully
D．more effectively
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What do scientists think of dreams Many scientists believe that dreams are ______.What do scientists think of dreams Many scientists believe that dreams are ______.
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To some , this factor is not necessary. But she herself does not believe so（）
A．extend
B．part
C．extent
D．content
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Many scientists believe that man is ________ from apes.
A．A.descended
B．B.evolved
C．C.revolved
D．D.proceeded
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Other scientists believe that environmental problems are getting worse and soon it will be too late to save the environment.
A)另一些科学家说能源的问题显得很糟 , 节约能源为时已晚。
B)另一些科学家的观点是能源的状况很糟 , 节约能源迫在眉睫。
C)另一些科学家坚信环境问题会更严重 , 并且很快人们的环境将无法挽救。
D)另一些科学家相信环境变得更糟糕了 , 并且已经来不及挽救了。
E)另一些科学家认为环境问题会更严重 , 并且很快这种糟糕的环境将无法挽救。
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Scientists believe the VLT will tell us more about____________
A．its detecting power
B．millions of light years away in space
C．the location of the VLT
D．as an example
E．the birth of the earth
F．the rotation of the earth
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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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Some scientists doubted 查看材料
A.if the Gardeners"argument was sound
B.because she was cleverer than other chimps
C.when she wanted to eat
D.while she was at a research center in Ellensburg
E.because she could use sign language to ask for fruits
F.while Washoe was learning sign language
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5：Scientists believe that human evolution ______.
A.has seldom been accompanied by climatic changes
B.has exerted little influence on climatic changes
C.has largely been effected by climatic changes
D.has had a major impact on climatic changes
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Scientists have long believed one way to stop the Earth’s atmosphere from warming is by planting more trees. The idea is that more trees will take in or absorb some of the carbon dioxide in the atmosphere. Carbon dioxide is a gas released by cars, factories and other human activities. The gas traps heat in the Earth’s atmosphere, which warms the planet. However, two new studies have found that trees may not be as helpful in reducing carbon dioxide as had been thought.
The first study was done at Duke University in Durham, North Carolina. Researchers pumped extra carbon dioxide into a test area where pine trees were growing. The trees grew thirty-four percent faster during the first three years. However, in time, the trees slowed to about their normal growth rate. The scientists say this is because trees need other nutrients, such as nitrogen.
In the second study, researchers from Duke and Bowdoin College in Brunswick, Maine examined the soil around trees. They discovered that as the leaves broke down into the soil, all the carbon was not trapped in the soil. Much of it was released into the atmosphere as carbon dioxide.
The findings of the two studies were published last month in Nature magazine. They suggest there is limited value in planting trees to reduce the carbon dioxide pollution in the atmosphere.
Forest planting has been a part of negotiations on a world agreement to reduce greenhouse gases that scientists believe cause global warming. The United States, Canada, Japan and some other industrial countries have supported the idea. But this new research suggests the idea is not as effective as environmental activists had thought. Scientist Ram Oren of Duke University led the study on tree growth. He says that earlier estimates on the ability of forests to absorb carbon dioxide were overly hopeful.
Some scientists not involved in the studies say the research provides some of the first evidence on how trees react to carbon dioxide. Other scientists say the research disputes a belief among some coal and power companies. The companies say that rising levels of carbon dioxide in the atmosphere will not create harmful global warming. Instead, they say it will increase forests and other plants.
What is the purpose of this passage？
A．Introduce some new ideas about the relationship between trees and carbon dioxide.
B．Introduce recent condition of global industrial pollution.
C．Call on people to plant more trees to reduce greenhouse gases.
D．Point out that power companies should be responsible for the rising levels of carbon dioxide.
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Some people believe that reading a child's diary is a gross invasion of____.（priva
Some people believe that reading a child's diary is a gross invasion of____.(private)
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In the second paragraph, some scientists suggest that______.
A．climate is changeable and the pause is common
B．climate change is not worth receiving our concern
C．climate science is more complicated than you think
D．the temperatures in the past 15 years haven"t risen much
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Some psychologists believe that a negative serf-image ____ one's working performance.
A、effects
B、affords
C、affects
D、efforts
