Unit 4 The EarthSection 3 Expressing and communicating ideas 同步练习2026-2027学年沪教版七年级英语上册

沪教版（新教材）初中英语七年级上册

Unit 4 The Earth Section 3 Expressing and communicating ideas 同步练习

一、词形转换

1. energy ________(复数)

2. pollute ________(n.污染)

3. protect ________(n.保护)

4. reuse ________(adj.可重复使用的)

5. recycle ________(n.回收利用)

6. important ________(n.重要性)

7. harm ________(adj.有害的)

8. save ________(adj.节约的；节省的)

9. waste ________(adj.浪费的)

10. act ________(n.行动；行为)

二、用所给词的适当形式填空

1. We should save different kinds of ________(energy) to protect the Earth.

2. Too much ________(pollute) makes the river dirty.

3. The ________(protect) of wild animals is very necessary.

4. You can use a ________(reuse) bag when you go shopping.

5. ________(recycle) paper can help save trees.

6. Everyone should know the ________(important) of saving water.

7. Smoking is ________(harm) to our health.

8. My mother is a ________(save) woman and she never wastes food.

9. It’s ________(waste) to throw away clean bottles.

10. We need to take more ________(act) to stop global warming.

三、重点短语

1. 节约能源 ________________

2. 减少浪费 ________________

3. 重复使用物品 ________________

4. 回收利用纸张 ________________

5. 保护地球 ________________

6. 对……有害 ________________

7. 采取行动 ________________

8. 关闭电灯 ________________

9. 乱扔垃圾 ________________

10. 除此之外 ________________

四、用所给短语的适当形式填空

save energy, reduce waste, reuse things, recycle paper, protect the Earth, be harmful to, take action, turn off the lights, litter around, besides

1. _______________ can help us cut down the cost of electricity.

2. We must learn to _______________ to make our planet cleaner.

3. _______________ is a good way to protect forests.

4. It’s our duty to _______________ every day.

5. Eating too much junk food _______________ our bodies.

6. We should _______________ to stop people from cutting down trees.

7. Remember to _______________ when you leave the room.

8. Don’t _______________ in the park; keep it clean.

9. _______________ reusing bottles, we can also recycle them.

10. _______________ can reduce the amount of rubbish we produce.

五、按要求完成句子

save/protect/harm/reduce/act/important

1. We should ________ water and electricity every day.

2. It’s our job to ________ the Earth from pollution.

3. Noise ________ people’s hearing, so we need to keep quiet in public.

4. We can ________ waste by using cloth bags instead of plastic ones.

5. We must ________ now to solve the environmental problems.

6. It’s very ________ for us to learn about environmental protection.

六、句型转换

1. We should save energy to protect the Earth.（改为同义句）

We ________ ________ save energy to protect the Earth.

2. People have polluted the river for many years.（对划线部分提问）

________ ________ people polluted the river?

3. We can reuse glass bottles to make new things.（改为被动语态）

Glass bottles ________ ________ ________ to make new things.

4. “Don’t litter in the street,” the teacher said to us.（改为间接引语）

The teacher told us ________ ________ litter in the street.

5. Recycling paper is a good way to save trees.（改为同义句）

________ a good way to save trees ________ recycling paper.

七、改错（每句一处错误，划出并改正）

1. We should to turn off the lights when leaving the classroom.

______________________________________________________________________

2. Litter around is bad for the environment.

      ______________________________________________________________________

3. Reuse things can help reduce waste.