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1、Unit 2 Saving the Earth Topic 1Pollution is harmful to peoples health.Section ACan you see bees and butterflies dancing?What does the picture show us?What has happened to the West Hill?What causes these problems?2.Work aloneIt is generally believed that pollution does great harm to animals.Listen an
2、d number the pictures.6 64 43 32 21 15 5 a.air pollution b.soil pollution c.water pollution d.light pollution e.noise pollution f.litter3aWork alone123456The top layer of the earth in The top layer of the earth in which plants grow.which plants grow.Pollution really causes too many problems.too many
3、+n.(c)(pl.)too much+n.(u)much too+adj./adv.soil pollution water pollution Air pollution noise pollution Light pollution Litter3b Complete the following sentences with the word and phrases in 3a.A substance used in chemistry.A substance used in chemistry.Substances are unwanted because the Substances
4、 are unwanted because the good part of them has been removed.good part of them has been removed.to have an effect on the way to have an effect on the way someone or something develops.someone or something develops.What has happened here?The flowers and grass have gone!There are several chemical fact
5、oriespouring waste water into the stream.Is the West Hill a beautiful place now?There are several chemical factories pouring waste water into the stream.several=a fewThere be+sb./sth.+v.ing sth.（有某人（有某人/某物正在做某事某物正在做某事)Eg:There are many students reading books in the classroom.Listen to Part 1a,answer
6、 the questions.What did Kangkang say about the West Hill in the past?Kangkang said that it was a beautiful place with lots of flowers and grass.What did Kangkang say about the West Hill at present?Kangkang said that the flowersand grass had gone.Kangkang:Its a beautiful place with lots of flowers an
7、d grass.Kangkang:The flowers and grass have gone!Retell 1a:beautiful-fresh-clean-gone-dirty-terrible-waste waterHow to change the direct speech into indirect speech:He said,“I have been to the Great Wall.”He said to us that he had been to the Great Wall.He said,“Ill give you an exam next Monday.”He
8、told us that he would give us an exam the next Monday.1.陈述句陈述句 用连词用连词that引导，引导，that在口语中常省略。主句的谓语在口语中常省略。主句的谓语动词可直接用引语中的动词可直接用引语中的said,也可用也可用told来代替，注意来代替，注意:可以说可以说said that,said to sb.that,told sb.that.不可直接不可直接说说told that。How to change the direct speech into indirect speech:“I dont like computers,”S
9、arah said to her friends.Sarah said to her friends that I dont likecomputers.didntsheSarah said to her friends that she didnt like computers.Grammar:Eg:Direct SpeechIndirect Speech V.am,is are do,does can will have,has smell was,were did could would had smelt/smelledGroup work:A:B:What did A say?C:A
10、 said that1bWork aloneIn the pastAt presentReasonKangkang said thatit was a beautifulplace with lots offlowers and grass.Kangkang saidthat the flowersand grass hadgone.Maria said.In the pastAt presentReasonKangkang said thatit was a beautifulplace with lots offlowers and grass.Kangkang said that the
11、 air was fresh and the water was clean,and that they would see bees and butterflies dancing.Kangkang saidthat the flowersand grass hadgone.Kangkang said that the water was so dirty.Kang said that it smelled terrible.Maria said that there were several chemical factories pouring waste water into the s
12、tream.Exercise:根据句意及首字母完成下列各句。根据句意及首字母完成下列各句。1.I have b_ to the West Hill before.1.I have b_ to the West Hill before.2.All the flowers,grass and fish have 2.All the flowers,grass and fish have g_.g_.3.There are s_ chemical factories 3.There are s_ chemical factories pouring waste water into the rive
13、r.pouring waste water into the river.4.We call a small narrow river a s_.4.We call a small narrow river a s_.5.Using chemicals too much in the fields 5.Using chemicals too much in the fields may cause s_ pollution.may cause s_ pollution.een oneeveraltream oil1 1.Tom said,“I am one year older than my
14、 sister”.Tom said,“I am one year older than my sister”Tom _ _ he _ one year older Tom _ _ he _ one year older than his sister.than his sister.2.Kangkang said,“2.Kangkang said,“The flowers and grass have gone!”Kangkang_ _ t Kangkang_ _ the flowers and grass _ gone.3.Kangkang said,“3.Kangkang said,“It
15、 smells terrible!”Kangkang saidKangkang said it _ terrible.said that wassmelled/smeltsaid that hadExercise:将下列各句改写为间接引语。将下列各句改写为间接引语。Oh,my goodness!Oh,my goodness!The flowers and grass have gone!The flowers and grass have gone!There are several chemical factories There are several chemical factories
16、 pouring waste water into the stream.pouring waste water into the stream.Light pollution is harmful to birds.Light pollution is harmful to birds.Lets be volunteers to protect our earth now.Homework:1.Make a survey to study something around your home,fill in the forms.2.Write a letter according to the report,then mail it to the local government.PollutionReasonsCause problemsAir pollutionSoil pollutionWater pollutionLight pollutionNoise pollutionLitterNow,its time for Now,its time for usus to to relaxrelax!Thank you Thank you GoodbyeGoodbye!