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Unit 6 Why should we take care of the Earth？
课时练习3 Communicate
主题情境 同学们正在开展“保护环境”的实践活动，一起去参与吧。
一、华华在为活动准备素材。听对话，为下列图片排序。
二、华华还为大家介绍了附近的河流污染的情况以及解决建议。听短文，补全表格。
Problems
◆The river is very 1.________. ◆People 2.________ the river “black river”. ◆3.________ plastic bags and bottles are on the water. ◆Rubbish can 4.________ the animals in the river.
Solutions(建议)
◆Pick up rubbish out of the river. ◆Plant trees 5.________ the river.
三、同学们在一起讨论实践活动中的行为。根据图片写一写，补全句子。
1.Please_______ ______ after having a picnic in the park.
2.We___________ _________ ____________ into the river.
3.We should________ _______near the river.
4.My family often______ _____ ______ near the river.
5.Don’t_______ ______ ________ ____when you leave the room.
四、在保护环境的实践活动中，典典正在采访社区的居民。请选择正确选项补全对话。
Diandian： Excuse me， I’m doing a survey about how to help the environment.1.________.
Mrs Li： Sure.
Diandian：2.________
Mrs Li：I always take a cloth bag when I go shopping.
Diandian：That is a good habit.What do you do to save water？
Mrs Li：3.________
Diandian：That’s good too.What do you do to help the river？
Mrs Li：4.________
Diandian：That’s very helpful.5.________
Mrs Li：I think we should tell our neighbours not to throw rubbish into the river.
Diandian：I agree.Thank you for your help for the environment.
五、聪聪写了一封保护长江(Yangtze River)的倡议书。读一读，完成下列任务。
Helping the Yangtze River
The Yangtze River is the mother river of China.There are many lovely animals in it.
Yangtze finless porpoises (江豚)like to jump in the air. There are around 1，000of them in the wild(在野外). Chinese alligators(扬子鳄)are one of the world’s smallest alligators.There are less than 200 of them living in the wetlands (湿地)along the Yangtze River
Baiji dolphins(白鱀豚)have lived in the Yangtze River for 20 million years.But now， they have nearly disappeared(消失).
But water pollution(污染)makes the Yangtze River sick these days. And it hurts these animals， too.To help these rare(稀有的) animals， we must do something to help it！
No factories： People shouldn’t build factories near the Yangtze River.This will reduce the pollution.
Stop fishing： In this way， the fish can grow up safely and have babies.And we should clean up the river by picking up rubbish.
Protect animals in danger： We can build more national parks along the river.More animals can have a safe place to live.
任务一：根据倡议书，判断下列句子正(T)误(F)。
(　　)1.Among the three animals in the article， Chinese alligators are the fewest(最少的).
(　　)2.Stopping fishing gives a better place to the fish to grow.
(　　)3.The Yangtze River will become better and better in the future.
任务二：根据倡议书的内容，补全下列思维导图。
六、天天读了一篇利用塑料进行旧物改造的故事。读一读，选择正确的答案。
Creative (有创意的) Reusing
Plastic is all around us—we use it for water bottles， food boxes， and many other things.But most of the plastic finally goes to the bins.That’s bad for the earth！ Luckily， some people reuse old things to make new ones.Mr Yan is one of them.
Mr Yan is a creative person who loves helping the Earth.He reuses plastic and makes it into the reusable straw(吸管).You can use it many times， not just once！ He also makes strong bags from plastic.These things are useful.And it’s good for the earth.
Mr Yan reuses plastic by himself.He takes old plastic，melts it， and then gives it a new shape.In this way， he makes useful things like beautiful flower pots.By turning plastic into useful things， Mr Yan keeps it out of the waste.It’s a smart way to keep our earth clean and green！
(　　)1.What’s the meaning of the word “reusable”？
A.干净的 B.可重复使用的 C.能保护环境的
(　　)2.What does Mr Yan make from old plastic？
A.Food boxes. B.Strong bags. C.Plastic bottles.
(　　)3.What does Mr Yan do after he melts plastic？
A.He sells it. B.He throws it away.
C.He makes it into a new shape like a flower pot.
(　　)4.What do we know about Mr Yan？
A.He reuses plastic only one time. B.He throws away most of the plastic.
C.He has great ideas about how to reuse plastic.
(　　)5.What is the main idea of the passage？
A.Mr Yan reuses plastic to help the earth in a creative way.
B.It is easy to make plastic straws and bags.
C.There are different ways to use plastic things.
听力原文
一、1.—Look at the river.The water is very dirty.
—Yes， there is a lot of rubbish in it.
2.—What is the boy doing？
—He is sweeping the leaves in the park.
3.—How do you help the river？
—I pick up rubbish out of the river in the morning.
4.—Smoke from factories makes the air dirty.
—That’s bad for our health.
5.—My family often go for walks near the river.
—That sounds nice.The river is clean and beautiful.
二、Hello， I’m Huahua.There is a river near our school.The water is very dirty.People call it the“black river”.Those plastic bags and bottles are on the water.There is lots of rubbish too.It can hurt the fish and ducks.We can pick up rubbish out of the river.And we can plant trees near the river to keep it clean.Let’s help our river！
参考答案
一、41532
二、1.dirty 2.call 3.Those 4.hurt 5.near
三、1.clean up
2.shouldn’t throw rubbish
3.plant trees
4.go for walks
5.leave the lights on
四、1.B 2.D 3.A 4.E 5.C
五、任务一1.F 2.T 3.T
任务二1.less than 2.build factories 3.have babies 4.in danger
六、1.B 2.B 3.C 4.C 5.A

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