答案：41-45ABCDA

41.答案：A　阅读整篇短文，我们可以了解本文是就因特网进行了详细的说明。尤其文章一开始“What is it? The internet is a network”就表明本文是讲Internet。

42.答案：B　由短文第二段第三句话可知发电子邮件是最快最省钱的方法。

43.答案：C　由短文最后一段第二句话可知将来你有可能在家里工作。

44.答案：D　由短文第三段最后一句话“...but no one really owns the Internet itself”可知无论是谁都不可能真正拥有因特网本身。

45.答案：A　由短文最后一段倒数第二句话可知作者是想强调英语在使用因特网方面的重要性。

B

Some people have very good memories，and can easily learn quite a long poem by heart. There are other people who can only remember things when they have said them again and again. The famous English writer，Charles Dickens，said that he could walk down any streets in London and then tell you the name of every shop he had passed. Many of the great men of the world have had wonderful memories.

A good memory is of great help in learning a language. Everybody learns his own language by remembering what he learns when he is a small child. Some children ,like boys and girls ,don’t live in their own country，and they seem to learn two languages almost as easily as one. In school，it is not so easy to learn a foreign language because students have so little time for it and they are busy with other lessons,too.

A man’s mind is rather like a camera，but it takes photos not only of what we see but also of what we feel，hear，smell and taste. When we take a real photo with a camera，there is much to do before the photo is finished and ready to show to our friends. In the same way，there is much work to be done before we can keep a picture for ever in our minds.

Memory is the diary we all carry about with us.

(  )46.Some people are good at __________.

A. learning long poems  B. remembering things C. taking photos  D. keeping a diary

(  )47.Other people can only remember things by __________.

A. saying again and again       B. hearing，smelling and tasting

C. learning a foreign language    D. keeping a picture

(  )48. Charles Dickens __________.

A. didn’t live in his own country                 B. had a very poor memory

C. spoke two foreign languages as easily as English  D. had a very good memory

(  )49. A good memory can help you __________.

A. keep a picture for ever    B. tell others the name of every shop in London

C. learn a language         D. hear，smell and taste

(  )50. Remember things is rather like __________.

A. learning poems  B. taking photos  C. learning English  D. feeling things