Modern science has given ____clear evidence ____ smoking can lead to many diseases ____ it’s time for us to take measures.

Last year I had a wonderful experience. I went on a student exchange to Japan. It was an exciting time of my life and I   learned many things about the school system in Japan. I was in Grade 11, which is second year of high school in Japan, but I was younger than most of my classmates. That’s because Japanese children enter first year of elementary school (小学) in April following their sixth birthday. I started school when I was still five years old.
In Japan, Children attend elementary school for six years, where they study Japanese, arithmetic, science, social studies, music, crafts, physical education, and home economics (simple cooking and sewing skills). During their three years in middle school, English is added to this list. Most schools have access to computers and the Internet.

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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 isn't 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（木匠）.You will probably agree,too, that knowing how to investigate（调查）,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 he gets to many questions is into a large set of ideas about how the world works.?

The scientist's knowledge must be exact .There's 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（实证）must be explained by the changes in the conditions. This is one reason why 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 investigation. Einstein's ideas were proved to be correct .A scientist uses many tools for measurements .Then the measurements are used to make mathematical calculations（计算）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 writer says this to show_______.?

A.the importance of information

B.the difference between scientists and ordinary people?

C.the importance of thinking

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.doesn't 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 keys to making of a scientist.?

With the development of science and technology，there is no doubt ________ Chinese astronauts will land on the moon in the near future.

I stood there outside of the classroom  with the other students，waiting for the supervisor（监考老师）to open the door，and   1  filled the heart.
When we were finally inside the classroom，I realized how   2  it was.  The heater hadn't been on and the _3___ were as cold as ice.  Alright then, the supervisor started to walk around，____4___everyone's calculator to make sure they were "approved devices"（允许使用的工具）．
At around 8：25，the test started.  I was___5____my way through word problems， grammar sections，and reading and   6  sections.  The supervisor kept walking around the room,    7  each student's extra pencils and   8  sharpening them for us.I turned the___9___when instructed to，___10____it wasn't another math section and it wasn't.  It was a reading section —— ___11____！I started reading the excerpt（片段）given and was    12  to discover that it wasn't a boring piece about astrology （星象）or biological science. ____13____，it was an excerpt from a romantic novel.  I became little____14____with reading it and at times I wanted to say "Awww！”aloud.  My heart was     15       swooning（沉醉）and I think I was   16 .  Hopefully I got the questiotions from that section____17__because I actually had fun answering them.  Who knew the SAT could actually bring   18 ？
It was about 1 p. m.  when the test was over.  I got out of the classroom  with____19____．As I was walking outside the building，I was thinking that the test was no longer a bitter____20____for the first time in my life.