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 usesbut how he uses these tools that makes him a scientist.You will probably agree that knowing how to use a power is important to a carpenter.You will probably agree,toothat knowing how to investigate,how to discover information,is important to everyone.The scientist,however,goes one step further,he must be sure that he has areasonable answer to his questions and that his answer can be confirmed by other persons.He also works to fit the answers he gets to many questions into a large set of ideasabout how the world works.The scientistˊs 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 worksunder one set of conditions at one time must work under the same conditions at other times.If the con?ditions are different,any changes the scientist observes in ademonstration must be explained by the changes in the conditions.This is one reason that investigations are important in sci?ence.Albert Einstein,who developed the theoryof relativity,arrived at this theory through mathematics.The accuracy of his mathematics was later tested through investigations,Einsteinˊs ideas were shown to becorrect.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) The way he uses his tools.C) His ways of learning.D) The various tools he uses.2."The scientist,however,goes one step further…" The author says this to show ______.A) the importance of informationB) the importance of thinkingC) the difference between scientists and ordinary peopleD) the difference between carpenters and people with other jobs3.A sound scientific theory should be one that ______.A) works not only under one set of conditions at one time,but also under the same conditions at other timesB) does not allow any changes even under different conditionsC) can be used for many purposesD) leaves no room for improvement4.The author quotes the case of Albert Einstein to illustrate ______.A) that measurements are keys to success in scienceB) that accuracy of mathematicsC) that the investigations are important in scienceD) that the mathematical calculations may test his investigations5.What is the main idea of the passage?A) The theory of relativity.B) Exactness is the core of science.C) Scientists are different from ordinary people.D) Exactness and ways of using tools are the keys to the making of a scientist.

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 that 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,how to discover information,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 can be confirmed by other persons.He also works to fit the answers he gets to many questions into a large set of ideas
about how the world works.
The scientistˊs 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 con?ditions 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 sci?ence.Albert Einstein,who developed the theory
of relativity,arrived at this theory through mathematics.The accuracy of his mathematics was later tested through investigations,Einsteinˊs ideas were shown 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) The way he uses his tools.
C) His ways of learning.
D) The various tools he uses.
2."The scientist,however,goes one step further…" 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 people with other jobs
3.A sound scientific theory should be one that ______.
A) works not only under one set of conditions at one time,but also under the same conditions at other times
B) does not allow any changes even under different conditions
C) can be used for many purposes
D) leaves no room for improvement
4.The author quotes the case of Albert Einstein to illustrate ______.
A) that measurements are keys to success in science
B) that accuracy of mathematics
C) that the investigations are important in science
D) that the mathematical calculations may test his investigations
5.What is the main idea of the passage?
A) The theory of relativity.
B) Exactness is the core of science.
C) Scientists are different from ordinary people.
D) Exactness and ways of using tools are the keys to the making of a scientist.