Have you ever wondered?

1.Why do airplanes take longer to fly west than east?

It can take five hours to go west-east from New York(NY) to London but seven hours to travel east-west from London to NY. The reason for the difference is an atmospheric phenomenon know as the jet(喷射) stream. The jet stream is a very high altitude wind which always blows from the west to the east across the Atlantic. The planes movement a constams air speed thus go faster in the west-east direction when the air moving with the wind than in the opposite direction.

2 What would happen if the gravity on Earth was suddenly turned off?

  Supposing we could magically turn off gravity. Would buildings and other structures float away? What happened would depend on how strongly the things were attached to the Earth. The Earth is moving at quite a speed moving at over a thousand miles per hour. If you turn something round your head on a string, it goes around in a circle until you let go of the strong go of the string. Things not attacked to the Earth would fly off in a straight line . People in buildings would suddenly shoot  upwards at a great speed until they hit the ceiling. Most things would fly off into space.

1.What information coa we get from the first passage?

       A.tis the iet stoomn that affeets how fast airplanes fly.

       B.Planes go slower when they are moving with the wind.

       C.It takes more time to fly from NY to London than from London to NY.

       D.The jet stream always blows from the east to the west across the Atantic.

2.The word“shoot”underlined in the 2nd passage probably means“__________”.

       A.send for

       B.move quickly

       C.come out

       D.grow quickly

3.It can be interred that without gravity_________.

       A.buildings and other structures would float away

       B.trees and buildings would not so easily fly off

       C.something around your head would not float away

       D.everything outside buildings would fly off into space

4.Where can wemost probably read this text?

       A.In s research paper

       B.In a tort story.

       C.In a travel magazine.

       D.In a student’s book.

To err is human. To blame the other guy is even more human.

Common sense is not all that common.

Why tell the truth when you can come up with a good excuse?

These three popular misquotes(戏谑的引语)are meant to be jokes, and yet they tell us a lot about human nature .To err, or to make mistakes, is indeed a part of being human, but it seems that most people don’t want to accept the responsibility for the problem. Perhaps it is the natural thing to do .The original quote about human nature went like this:” To err is human, to forgive, divine(神圣的).”This saying mirrors an deal people should be forgiving of others’ mistakes. Instead, we tend to do the opposite –find someone else to pass the blame on to. However, taking responsibility for something that went wrong is a making of great maturity.

Common sense is what we call clear thought. Having common sense means having a good general plan that will make things work well, and it also means staying with the plan. Commonsense tells you that you take an umbrella out into a rainstorm, but you leave the umbrella home when you hear a weather forecast for sunshine.Common sense does not seem to be common for large organizations, because there are so many things going on that one person cannot be in charge of everything. People say that in a large company,”the right hand does not know what the left hand is doing.”

And what is wrong with a society that thinks that making up a good excuse is like creating a work of art? One of the common problems with making excuses is that people, especially young people. get the idea that it’s okay not to be totally honest all the time. There is a corollary(直接推论)to that: if good excuse is “good”even if it isn’t honest, then where is the place of the truth?

1. According to tile passage, which of following seems the most human?

A. To search for truth.                    B. To achieve one’s ideal

C. To make fun of others’mistakes.          D. To criticize others for one’s own error.

2.According to the author, what is a sign of a man’s maturity?

A.Doing things his own way.

B.Bearing responsibility for his mistakes.

C.Making as few mistakes as possible.

D.Thinking seriously about his wrongdoing.

3.Which of the following is N0T based on common sense?

A.A man tries to take charge of everything in a large company.

B.A student goes out with an umbrella in stormy weather.

C.A company’s next move follows a good plan.

D.A lawyer acts on fine judgments.

4. What is the author’s opinion about a good excuse?

A. Making a good excuse is sometimes a better policy.

B. Inventing a good excuse needs creative ideas.

C. A good excuse is as rewarding as honesty.

D. Bitter truth is better than a good excuse.

5. What would be the best title for his passage?

A. A Mirror of Human Nature            B. To Blame or to Forgive

C. A Mark of Maturity                  D. Truth or Excuse

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