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阅读下列四篇短文,从每小题后所给的A、B、C、D四个选项中,选出最佳选项。

  Have you ever noticed when your sweat dries it will leave marks on your T-shirt? The marks are tiny bits of salt.If you go to the seaside, you will know that seawater does the same to your clothes, because it also has a lot of salt in it.

  Water evaporates from the surface of the sea but the salt remains.Have you ever thought about whether the seas will keep getting saltier? The answer is no.The oceans have stayed at about 3.5 percent salt content for hundreds of millions of years.It keeps a constant level of salt in different ways.

  Pick up a seashell and weigh it in your hand.It is heavy.All animals need sodium to live and most need calcium to build bone an shells.The seashell, like all sea animals, gets its sodium and calcium from seawater.When animals die, their salt is locked up in bins and shells, which drop to the bottom of the sea.

  Seawater and rocks react with each other not just in one way.Sea salt not only reacts with rocks, but also reacts with the rocks of the ocean crust(壳)and volcanic lava.The reactions take some of the salt in seawater away from the sea.

  The outer hard crust of the earth is made up of about a dozen hard plates that drift on very hot, soft rock like floating islands on a sea.The heat within the earth is not the same everywhere and the plates move because of the heat.When an ocean plate knocks into a land plate, the thinner land plate floats over the ocean one.The ocean floor gets pushed under and its salty rocks, shells and bones, are lost deep within Earth.

  So, that's why the seas are salty but don't get any saltier.

(1)

What does the underlined word “evaporates” in Paragraph 3 mean?

[  ]

A.

turns into steam

B.

turns into a solid

C.

turns into fresh water

D.

turns into ice

(2)

From the passage we can know the seashells ________.

[  ]

A.

get some minerals from seawater

B.

take some salt from sea when seawater reacts with rocks

C.

react with rocks of the ocean crust when plates move

D.

absorb salt when the plates move

(3)

How many reasons does the writer mention why the oceans stay at about 3.5% salt content?

[  ]

A.

2

B.

3

C.

4

D.

5

(4)

What's the purpose of the author to write the text?

[  ]

A.

Warning

B.

Informing

C.

Entertaining

D.

Describing

答案:1.A;2.A;3.B;4.B;
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This month Dr. Jeffers is answering questions about the human brain and how it works.

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One of my colleagues, Felix Moeller, told me that scientists are learning to use computer to ‘read minds’. Is there any truth to this story/

—Jane Leon, New York, USA

Dear Ms. Leon,

Well, a lot of research is being conducted in this area, but so far, the brain scanning equipment and corresponding computer programs haven’t been able to actually read thoughts. In one experiment, test subjects(受试者)were connected to scanning equipment and shown two numbers on a screen. They were then asked to choose between adding or subtracting(减)the two numbers. Using this method, researchers were able to follow brain processes and make the correct assumptions(假设)70 percent of the time. It’s not quite mind reading, but it’s certainly a first step.

—Dr. J.

Dear Dr. Jeffers,

My three-year-old son loves it when I dig my fingers into his sides and tickle (胳肢)him until he laughs uncontrollably. The other day I noticed him trying to tickle himself but he couldn’t do it. Why not?

—Glenn Lewis, Vancouver, Canada

Dear Mr. Lewis,

It’s because of how the brain works. The brain is trained to know what to pay attention to and what to ignore. It causes us to ignore physical feelings we expect to happen, but it causes a mild panic reaction when there is an unexpected feeling. For example, you don’t notice how your shoulder feels while you’re walking down the street. But if someone comes up behind you and touches you lightly on the shoulder, you may jump in fear. It’s that unexpected part that causes the tickle reaction.

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A. unexpected        B.expected        C. comfortable        D. uncomfortable

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A. Ms. Leon          B. Mr. Lewis        C. Mr. Moeller        D. Dr. Jeffers

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A. a computer programmer                B. a test subject

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第二部分 阅读理解(共两节,满分40分)
(共15小题,每小题2分,满分30分)
阅读下列四篇短文,从每小题后所给的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该选项涂黑。

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This month Dr. Jeffers is answering questions about the human brain and how it works.
Dear Dr. Jeffers,
One of my colleagues, Felix Moeller, told me that scientists are learning to use computer to ‘read minds’. Is there any truth to this story/
—Jane Leon, New York, USA
Dear Ms. Leon,
Well, a lot of research is being conducted in this area, but so far, the brain scanning equipment and corresponding computer programs haven’t been able to actually read thoughts. In one experiment, test subjects(受试者)were connected to scanning equipment and shown two numbers on a screen. They were then asked to choose between adding or subtracting(减)the two numbers. Using this method, researchers were able to follow brain processes and make the correct assumptions(假设)70 percent of the time. It’s not quite mind reading, but it’s certainly a first step.
—Dr. J.
Dear Dr. Jeffers,
My three-year-old son loves it when I dig my fingers into his sides and tickle (胳肢)him until he laughs uncontrollably. The other day I noticed him trying to tickle himself but he couldn’t do it. Why not?
—Glenn Lewis, Vancouver, Canada
Dear Mr. Lewis,
It’s because of how the brain works. The brain is trained to know what to pay attention to and what to ignore. It causes us to ignore physical feelings we expect to happen, but it causes a mild panic reaction when there is an unexpected feeling. For example, you don’t notice how your shoulder feels while you’re walking down the street. But if someone comes up behind you and touches you lightly on the shoulder, you may jump in fear. It’s that unexpected part that causes the tickle reaction.
—Dr. J.
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B. Some progress has been made in mind reading.
C. Test subjects have been used tomake decisions.
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3.Who has got a little child according to the text?                                  
A. Ms. Leon          B. Mr. Lewis        C. Mr. Moeller        D. Dr. Jeffers
4.According to the text, Jeffers is probably _______.                                
A. a computer programmer                B. a test subject
C. a human brain expert                   D. a medical doctor

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In learning a foreign language, one should first pay attention to speaking. It is the groundwork of reading and writing. You’d better try your best to speak. Don’t be afraid of making mistakes. But be careful not to let them keep you from improving the language. While you are doing this, a good exercise is to write – keep a diary, write notes, letters or articles, then if you can, ask someone to go through what you have written and tell you where is wrong . Many mistakes in your speaking will be easily found when you write. Through correcting the mistakes, you can do better in learning a language.

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