42. Some forests are in danger. So people are trying to s  them.

43. To have a better living environment,we must fight a  pollution.

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    We all cry for water when we are thirsty. But do you know,in very hot,dry weather,plants also make very low sounds as if they are crying for help?

    You see,in a plants stem there are several hundred “water pipes”that bring water from soil all the way up to the leaves. When the ground turns dry,it becomes harder and harder for plants to do this.

    In very hot days,plants have to get any water that they can get.

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A ： Good morning,Mike.

B: Good morning,Harry. 61 

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A: Yes,and air pollution has done harm to people’s health.

B ： So the Chinese government and Chinese people must take action to fight it.

A： 63 

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A ： 64  I hope that more and more people will join us in making the blue skies return for good.

B： 65 

   

    A. I agree.

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   C. I hope so,too.

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