Unit 13 We’re trying to save the earth! Section A 1a~1c同步练习
一、根据句意及汉语或首字母提示写单词。
1. The ________ (污染) of the air is a serious problem.
2. We should try to ________ (减少) waste.
3. The river is very dirty because of the industrial ________ (废料).
4. Recycling is a good way to protect the ________ (环境).
5. Many animals are in danger because of the loss of their natural ________ (栖息地).
二、根据语境，从方框中选择恰当的单词并用其正确时态填空。
protect, save, recycle, reduce, pollute
1. We must ________ our environment from being polluted.
2. We should ________ water and electricity.
3. People should ________ more waste to protect the earth.
4. Factories should ________ the amount of waste they produce.
5. We must stop ________ the air with harmful gases.
三、单项选择。
1. - What should we do to save the earth
- We should try to ________ waste.
A. produce B. increase C. reduce D. waste
2. The river is polluted because people ________ a lot of waste into it.
A. throw B. put C. pour D. all of the above
3. Recycling is a good way to ________ resources.
A. waste B. save C. pollute D. protect
4. We should protect animals and their ________.
A. habitats B. pollution C. waste D. recycle
四、根据汉语意思完成英语句子，每空词数不限。
1. 我们正在努力拯救地球。
We ________ to save the earth.
2. 我们应该停止污染空气。
We should ________ the air.
3. 回收利用是保护环境的一种好方法。
Recycling is a good way to ________ the environment.
4. 许多动物因为栖息地的丧失而处于危险之中。
Many animals are in danger because of ________ their natural habitats.
5. 我们应该减少使用塑料袋。
We should ________ the use of plastic bags.
五、在空白处填入适当的单词或用括号内所给单词的正确形式填空(每空不超过2个单词)。
1. The ________ (pollute) of the environment is getting worse.
2. We should take action to ________ (protect) our earth.
3. Recycling can ________ (reduce) waste and save resources.
4. The loss of natural habitats ________ (endanger) many animals.
5. We need to encourage more people to ________ (recycle) waste.
六、阅读理解。
Read the following text and answer the questions below.
The earth is our home, but it is in danger. People are polluting the air, water and land. Factories produce a lot of waste and pour it into rivers and lakes. Cars emit harmful gases into the air. People also cut down many trees, which causes the loss of natural habitats for many animals.
We must take action to save the earth. We can start by reducing waste, recycling more, and protecting the environment. We should also encourage others to do the same.
1. What is the earth in danger from
2. What do factories do that harms the environment
3. What do cars do that harms the environment
4. Why is the loss of natural habitats a problem
5. What can we do to save the earth
七、用所给单词的正确形式填空。
1. The situation of the earth's environment is very ________ (worry).
2. We should make an effort to ________ (protect) our earth.
3. The amount of waste should be ________ (reduce).
4. Recycling is a very ________ (effective) way to save the earth.
5. The loss of natural habitats makes many animals very ________ (endangered).
答案：
一、
1. pollution
2. reduce
3. waste
4. environment
5. habitats
二、
1. protect
2. save
3. recycle
4. reduce
5. polluting
三、
1 - 4 CDBA
四、
1. are trying
2. stop polluting
3. protect
4. the loss of
5. reduce
五、
1. pollution
2. protect
3. reduce
4. endangers
5. recycle
六、
1. The earth is in danger from pollution of air, water and land, waste from factories, harmful gases from cars and loss of natural habitats.
2. Factories produce a lot of waste and pour it into rivers and lakes.
3. Cars emit harmful gases into the air.
4. The loss of natural habitats is a problem because many animals are in danger because of it.
5. We can save the earth by reducing waste, recycling more, and protecting the environment and encouraging others to do the same.
七、
1. worrying
2. protect
3. reduced
4. effective
5. endangered
