高中英语人教Unit 3 Environmental Protection 作业.doc

Unit 3 Environmental Protection
A组·基础巩固
Ⅰ. 语法填空
A
Without the Earth we have nowhere to live, along with many other organisms. If we don't save the Earth 1.________ (active) now, our children or grandchildren might not be able to see it for long. Our atmosphere 2. ________ (weaken) and we have to do something about it quickly.
We could plant more 3. ________ (tree) to create more oxygen to keep the bad air away from the atmosphere, 4. ________ we could just stop cutting down the rainforest. We are living and we need the space but we aren't the only species on this earth. 5. ________ (save) the rainforest is not only good for the atmosphere but also good for the many different species that the earth provides for 6. ________ (we)．
We could try to get as many people as possible to switch to other energy using 7. ________ (little) mineral fuels for energy and relying more 8. ________ solar and wind energy because fossil fuels are destroying our earth and we need 9. ________ (limit) the use of it.
Recycling is one of the simplest ways 10. ______ helps our precious planet. Everyone can help. All we have to do is follow three simple rules: Reduce, Reuse, Recycle!
The world is precious and we need to keep it that way.
【语篇解读】本文是一篇说明文。文章主要介绍了人类拯救地球的方法。
1. actively　考查副词。分析句子可知，空格处修饰前面的动词save，修饰动词要用副词作状语。故填actively。
2. is weakening　考查时态。此处指地球的大气层正在减弱，强调一个正在进行的动作，要用现在进行时，故填is weak