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3. 电力;力量 

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将下列句子改为被动语态

l.Our city will build a new highway next year.

 

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8. Tom will check the computer.


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2. 是我们变得环保的时候了。

It's   .

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10.我们收到的捐款将被用来建造一所希望学校。

The donations we have received 

a Hope School.

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cut down,   in place,   that way,   

recycle waste,     protect the   environment

Andy:Dad,I remember this place used to have many trees.    Where have the trees gone?

Dad:The trees 51  five years ago because they had     to make space for this factory.

Andy:But why did they have to do that? Didni they know t     hat trees can help 52  ?

Dad:Of course they did. But they thought money was more    important.

Andy:Without trees,soil can't be kept 53  So look at    the river. The water is not so clean as before.

Dad:That's true. And there is rubbish in the river.        People here haven’t realized the importance of 54     Andy:That's too bad. The environment here was     very good in the past. But local people didn't try     to keep it 55  

Dad: That's because they couldn’t find a balance (平衡)      between the environment and development.

51.   52.   53.   54.   55.  

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3. 今晚两部电影将会上演。

Two films  tonight.

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4. 对于帮助保护环境,他们已经做了很多。

They have  help protect the environ-

ment.

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I .根据句意,用适当的介词填空

1. After reading ihis article,your mood will change 

the better.

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