4. 我認為污染沒有我想象的那么嚴重。

I don^ think the pollution .

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5. 這些公園對所有人都免費開放。

These parks  .

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4. 你能告訴我這本書她借多久了嗎？

Could you tell me the book?

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5. 想到她那走丟的寵物狗，這個小姑娘又開始嚎啕大哭。

，the little girl began to cry again.

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(D) How would you use a radio or a telephone if you had no electricity or batteries? These 1 bothered (使煩惱) British inventor Trevor Baylis. So in 1996 he 2 a wind-up (裝有發(fā)條 的) radio. It doesn’t need electricity or batteries. You wind it up 3 hand. It plays for about an hour. Then,you wind it up 4 . Today it's made in South Africa.

Then in 1999,Baylis invented a mobile telephone that is powered by 5 The shoes contain (含有) a small battery that is powered when you 6 This battery is connected to a mobile phone. These two simple inventions can bring modern 7 to all parts of the world.

Baylis doesn’t have a university degree in engineering. In 8,he left high school before graduating. He just loves 9 things to help people. He never knows 10 ideas will come to him. The idea for the telephone came to him in a dream.

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(C) Trees are useful to man in three important ways ： they give him wood and other useful things,they give him cool places,and they help to stop drought (干旱) and flood.

Unluckily,in many parts of the world,man has not found that the third of these points is the most important. Man wants to make money from trees,so he has cut them down in large numbers,only to find that without them he has lost the best friends. And also, he is usually too careless to plant and look after new trees. So the forests slowly disappear.

This does not only mean that man will have fewer trees. The results are even worse; for where there are trees,the earth is stopped from being washed away easily ; but where there are no trees,the rain falls on hard ground and runs away,causing floods and carrying away the rich top-soil. When all the top-soil is gone,nothing is left but useless desert (沙漠) .

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7. Cindy often ( write) diaries in Chinese,but she doesn’t do it now because she thinks it is difficult.

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8. — Is the fire still (bum) ?

—No,the firemen have put it out.

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