Antarctica is the highest continent on Earth，with the coldest temperatures anti the most wind．People have never wanted to live there because it is so cold．The（A）_________ temperature once was －89.2℃! But now scientists from all over the world come to study the ice．They want to（B）learn more about the Earth's history．

Some scientists live on Antarctica for part of the year．But they don't usually stay there for more than six months．Why? There are six months of light and six months of darkness .

Antarctica usually has a good deal of fine weather（C）_________any wind at all．The strong winds are usually only in seine parts of it. It is also interesting to learn that it isn't very wet there（D）There is very little snow or rain．It snows on the ice Ill winter，but at other times Antarctica is dry，just like the Sahara Desert

    In winter the sea around Antarctica （E）changes into ice for thousands of kilometers．But scientists tell us that（F）地球在變暖．So in future，there may be less ice ill the Antarctic sea When that happens．our weather will never be the same again．

1．分別在A和C的空白處各填入一個(gè)適當(dāng)?shù)脑~：

2．寫(xiě)出可以替換劃線部分B和E的同義詞或近義詞：

3．將劃線部分D改寫(xiě)成__________  __________ snow or rain alot．

4．將劃線部分F譯成英語(yǔ)

5．寫(xiě)出能說(shuō)明本文主旨大意的中心詞語(yǔ)：

1．lowest，without

2．Know，freezes

3．It doesn't 

4．the Earth is getting warmer

5．Antarctica

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This October, Saunders, 27, heads south to explore from the coast of Antarctica to the South Pole and back, an 1800-mile journey that has never been completed on skis.

1.The turning point in Saunders' life came when ________.

A．he started to play ball games

B．he got a mountain bike at age 15

C．he ran his first marathon at age 18

D．he started to receive Ridgway's training

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A．dismissed Saunders' dream as fantasy

B．built up his body together with Saunders

C．hired Saunders for his cold-water experience

D．won his fame for his voyage across the Atlantic

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A．He once worked at a school in Scotland.

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