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  People have been finding Moon rocks and Mars rocks at the South Pole.Why the South Pole? It seems that the South Pole (Antarctica) is a really good place to look for them and to find them.

  Part of the reason for this is that Antarctica is a very large slab of ice sitting on a bed of rock. The ice doesn't stay still.It moves,ever so slowly,from the centre of Antarctica down to the coast (海岸).

  When meteorites (陨石) fall on the Antarctic ice,some stay on the surface but most get trapped   a few metres down.After all,they do come down with some force and heat!

  The meteorites get caught up in the ice as they move to the sea and a few million years later most of them reach the coastine.

  On the way to the sea some of the ice passes round mountain ranges where the meteorites get dislodged.In other words,the ice presses them to the surface.

  Anywhere else on the earth the meteorites either land in the ocean or cover themselves underground in the soil,never to be seen again.

  In Antarctica,the little black rocks show up very nicely against the white background.

People who live where there are trees and where there is a completely different climate aren't so lucky!

(1)

More meteorites are found at the South Pole then in other places.This is because the meteorites there _______.

  A.aye bigger

B.show up on the ice

C.fall close to the coast

  D.are not buried when they fall

[  ]

(2)

Many meteorites are covered because they ______.

  A.fall on soft snow

B.are large and heavy

C.come down with great fore

  D.are pressed down by the ice

[  ]

(3)

What does the undenlined word "trappedndline" mean in Chinese?

  A.释放  B.关闭  C.陷入   D.暴露

[  ]

(4)

Meteorites rise to the ice's surface when the ice slab _______.

  A.melts  

B.stops moving

C.reaches the coastline

  D.passes round a mountain range

[  ]

(5)

From the passage we can learn something about ______.

  A.science  B.history  C.maths  D.the universe

[  ]
答案:1.B ;2.C ;3.C ;4.D ;5.A ;
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阅读短文,从方框中选择适当的词并用其正确形式填空,使短文通顺、意思完整。请将答写在短文后相应题号的横线上。每空限填一词,每词限用一次。方框中有两个词是多余的。

  After a quick breakfast, I went into the lecture hall in a hurry.A famous teacher was   1   to the students.He was holding up a $100 bill.Then he said to the three hundred students,“Who would like this $1 00 bill?”The students put up   2   hands at once.Then he said,“I am going to give this $100 bill to one of you, but   3  , let me do this.”He made the bill into a ball.Then he said.“Who   4   it now?”The hands went back into the air.“Well,”he said,“what if I do this?”and he   5   it on the floor and stepped on it.He picked up the   6   bill and said.“Who still wants it?”Hands went back again into the air.

  “My friends,”?he said,“you have learned a valuable(有价值的)  7   today.No matter what I did to the $100 bill!Many   8   in our life, we are dropped and stepped on.We feel as if we are worth nothin9.But remember, no matter what   9   happened to you, you will never lose your value:You are   10   valuable to those people who love you.Your value doesn't come from what you do or whom you know, but who you are.”

1.________ 2.________ 3.________ 4.________ 5.________

6.________ 7.________ 8.________ 9.________ 10.________

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