Our earth is in trouble.  Our drinking water is becoming dirtier, and the air is not as clean as before.  People and factories are polluting the air, rivers and lakes and seas.  You may think that there is mothing you can do to help.  That’s not true.  There are many things you can do to help the earth.

Cars burn gasoline.  This will produce a lot of CO₂ into the air.  Some people believe that too much CO₂ is making the earth warmer than ever.  They think CO₂ thins the clouds above us.  The clouds keep us away from the strongest sunlight.  So try to walk, ride a bike or take a bus.  And if you drive a car, drive at a steady speed.  This can save some gasoline.

The biggest energy use at home is for keeping warm and cool.  So turn the air conditioner off when you don’t need to use it.  Use lights that save energy.

Use fewer things that cannot be used again.  When you buy something, consider those made from things that can be used again first.

（1）要用大量的水来洗澡沐浴。In one week an American family uses as much water for showers as a person drinks in three years! Buy a waterworks that uses less water, or take shorter showers.  This can cut the use of water.

1.将（1）处译成英语。

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2.找出 If there is too much CO₂ in the air, the earth will become warmer 的同义句。

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3.从文中找出能概括本文大意的句子。

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完成句子
【小题1】It was hot and rainy.  (对划线部分提问)
______ ______ the weather?
【小题2】Wang Yang went to New York for vacation.  (对划线部分提问)
______ did Wang Yang ______ for vacation?
【小题3】They were not friendly to us. (改为同义句)
They ______ ______ to us.
【小题4】She did her homework at home.  (改为一般疑问句)
______ she ______ her homework at home?
【小题5】你参观过那个历史博物馆吗?
______ you ______ that history ______?

完成句子

根据所给提示，完成句子，每空一词，含缩略词。

1.There were some people in the park last week. (改否定句)

There ________ ________ people in the park last week.

2.He put the camera in the drawer this morning. (划线部分提问)

_________ _________ he put the camera this morning.

3.The old man died five years ago. (改为同义句)

The old man has been _________ _________ five years ago.

4.我们必须阻止人们砍伐太多的树木。(完成译句)

We must ________ people from __________ down too many trees.

句型转换(本题共5小题；每小题1分，满分5分) 根据要求改写下列句子，每空一词。

1.Can you tell me the way to solve such problems, Mr White?(同义句)

Can  you  tell  me                 solve such problems, Mr White?

2.Sigmund Friend is so helpful to the teenagers.（改为感叹句）

                    Sigmund Friend is to the teenagers.

3. My sister went to the supermarket to buy some fruit.（划线提问）

       did your sister      to the supermarket.

4. Murder in a Country House is a horror film. It is directed by a new director.（合并一句）

Murder in a Country House is a horror film                a new director.

5.Peter’s never been to China ,           ?（改为反意疑问句）