What makes a person a scientist? Does he have ways or tools of learning that are

 What makes a person a scientist? Doeshe have ways or tools of learning that are different from those of others? Theanswer is "No". It is not a tool a scientist uses but how he usesthese tools that makes him a scientist. You will probably agree that knowinghow to use a power is important to a carpenter. You will probably agree, too,that knowing how to investigate, how to discover information, is important toeveryone. The scientist, however, goes one step further: he must be sure thathe has a reasonable answer to his question into a large set of ideas about howthe world works.

      Thescientist's knowledge must be exact. There is no room for half right or rightjust half the time. He must be as nearly right as the conditions permit. Whatworks under one set of conditions at one time must work under the sameconditions at other times. If the conditions are different, any change thescientist observes in a demonstration must be explained by the change in theconditions.

       Thisis one reason that investigations are important in science. Albert Einstein,who developed the theory of relativity, arrived at this theory throughmathematics. The accuracy of his mathematics was later tested throughinvestigation. Einstein's ideas are shown to be correct. A scientist uses manytools for measurements. Then the measurements are used to make mathematicalcalculations that may test his investigations.

 1."...knowinghow to investigate, how to discover information, is important to everyone." The author says this to show       .

      A. theimportance of information

      B. thedifference between carpenters and ordinary people

      C. thedifference between scientists and ordinary people

      D. theimportance of thinking

2.A sound scientific theory should be onethat       .

    A. works under one setof conditions at any time

    B. leaves no room forimprovement

    C. does not allow anychange even under different conditions

   D. can be used for manypurposes

3.Which of the following statements is NOTtree?

   A. What works under one set ofconditions at one time might work under the same conditions at other times.

   B. Tools which a scientistuses for measurements are used to make mathematical calculations that may testhis investigations.

   C. A scientist should knowmore about other branches of knowledge to arrive in his achievement.

   D. Knowing how to investigate,how to discover information is important to scientists.

4. What is the main idea of the passage?

   A. Scientists are differentfrom the ordinary people.

   B. The theory of relativity.

   C. Exactness is the secret ofscience.

   D. Exactness and way of usingtools is the key to the making of a scientist.

试题答案

【答案】

1.C

2.A

3.A

4.D

【解析】略