It___ him only half an hour to finish his homework, and he ___ most of the evening w

() is it from the school to the farm? ----Only a half kilometer.

The Atlantic Ocean is only half as big as the Pacific， ______ it is still very large。

What makes a person a scientist？ （是什么使一个人成为科学家？)Does he have ways or tool
What makes a person a scientist？ (是什么使一个人成为科学家？)Does he have ways or toolsof learning that are different from those of others？ The ans wer 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 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 onetime must work under the same must be explained by the changes in the conditions. This is one reasonthat investigations are important in science. Albert Einstein, who developed the Theory of Relativity,arrived at this theory through mathematics. The accuracy of his mathematics was later tested throughinvestigations, and Einstein ’idesas were shown to be correct. A scientist uses many tools formeasurements. 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 underlined part in the passage shows().
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 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.

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 make 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 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 of this mathematics was later tested through investigations,Einstein's 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 underlined part in the passage shows（）.
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.leave no room for improvement
4.The author quotes the case of Albert Einstein to illustrate（）.
A.that measurements are keys to success m science
B.that accuracy of mathematics
C.that investigations are important 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.

Mary Lou is a 22－year old student at Wilson College.She earned $4,300 at a summer job
Mary Lou is a 22-year old student at Wilson College.She earned $4,300 at a summer job, which is less than half of her support.I.Mary Lou can claim a $500 family tax credit for herself even if her parents claim a $500 family tax credit as a dependent.II.Because Mary Lou is a full-time college student, and she provides less than half of her own support, her parents can claim a $500 family tax credit because she is their dependent.()
A、Only statement I is correct
B、Only statement II is correct
C、Both statements are correct
D、Neither statement is correct

请帮忙给出正确答案和分析，谢谢！

You cannot teach a man anything;you can only help him find it within himself.中译英

（) I admire David as a poet, I do not like him as a man.
A. Much as
B. If only
C. Only if
D. As much

请帮忙给出正确答案和分析，谢谢！

All the useful energy at the surface of the earth comes from the activity of the sun. The sun heats and feeds creatures and mankind. Each year it provides men with two hundred million tons of grain and nearly ten million tons of wood.
Coal, oil, natural gas, and all other fuels are stored energy from the sun. Some was collected by this season's plants as carbon compounds. Some was stored by plants and trees ages ago. Even waterpower derives from the sun. Water turned into vapor by the sun falls as rain. It courses down the mountains and is converted to electric power. Light transmits only the energy that comes from the sun's outer layer, and much of this energy that is directed towards the earth never arrives. About nine tenths of it is absorbed by the atmosphere of the earth. In fact, the earth itself gets only one half millionth of the sun's entire output of radiant energy.
The sun is the source of all of the following EXCEPT______.
A．gasoline
B．natural gas
C．atomic power
D．animal fat

The Antarctic(南极洲)is actually a desert.It is the only continent on the earth without a river or a lake.The Antarctic is all ice all year round.The warmest temperature ever recorded there is zero,at the South Pole.Explorers used to think that a place so cold would have a heavy snowfall.But less than ten inches of snow falls each yeat.That is less than half an inch of water.Ten times that much moisture falls in parts of the Sahara.The little snow that falls in Antarctic never melts.It continues to pile up deeper and deeper year after year.When the snow gets to be about eighty feet deep it is turned to ice by the weight of the snow above it.1.Antarctica is called a desert because it has little moisture and no lakes or rivers.A.TB.F2.The Antarctic has ten times as much moisture as the Sahara.A.TB.F3.The temperature in the Antarctic is always above zero.A.TB.F4.The snow In Antarctic is very deep because it piles up year after year.A.TB.F5.The snow turns to ice when the snow above it is heavy enough.A.TB.F