题目内容
阅读理解
阅读下列短文,从每题所给的A、B、C、D四个选项中选出最佳答案。
What makes a person a scientist? Does he have ways
or tools of learning that are different from those of others? The answer is “no”. It is not the tools a scientist uses but how he uses these tools which makes him a scientist. You will probably agree that knowing how to use a power is important to a carpenter. You will probably agree, too, that knowing how to investigate (调查), how to discover infomation, is important to everyone. The scientist, however, goes one step further; he must be sure that he has a reasonable answer to his questions and that his answer he gets to many questions into a large set of ideas about how the world works.
The scientist's knowledge must be exact. There is no room for half right or right just half the time. He must be as nearly right as the conditions permit. What works under one set of conditions at one time must work under the same conditions at other times. If the conditions are different, any changes the scientist observes in a demonstration must be explained by the changes in the conditions. This is one reason that investigations are important in science. Albert Einstein, Who developed the theory of relativity, arrived at this theory through mathematics. The accuracy (正确性) of his mathematics was later tested through investigations. Einstein's ideas were proved to be correct. A scientist uses many tools for measurements. Then the measurements are used to make mathematical calculations that may test his investigations.
1.What makes a scientist according to the passage?
[ ]
A.The tools he uses.
B.His ways of learning.
C.The way he uses his tools.
D.The various tools he uses.
2.“Knowing how to investigate, how to discover information, is important to everyone.” The author says this to show ________.
[ ]
A.the importance of information
B.the importance of thinking
C.the difference between scientists and ordinary people
D.the difference between carpenters and ordinary people
3.A sound scientific theory should be one that ________.
[ ]
A.works under one set of conditions at one time and also works under the same conditions at other times
B.leaves no room for improvement
C.does not allow any change even under different conditions
D.can be used for many purposes
4.What is the main idea of the passage?
[ ]
A.Scientists are different from ordinary people.
B.The theory of relativity.
C.Exactness is the core (核心) of science.
D.Exactness and way of using tools are the key to the making of a scientist.
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