《优质课课件重要.ppt》由会员分享，可在线阅读，更多相关《优质课课件重要.ppt（20页珍藏版）》请在三一办公上搜索。
1、Unit 2 Saving the Earth Topic 1,Pollution causes too many problems.Section A,获嘉县第一初级中学 吴 倩,Guessing games,People use chemicals too much in their fields,so this kind of pollution causes unhealthy food.,soil pollution,chemical n.化学品 adj.化学的chemical factories 化工厂,People pour waste water into rivers and
2、 lakes,so this kind of pollutionis almost everywhere in China.,waste adj.废弃的；丢弃的；无用的,water pollution,This kind of pollution makes people sick.It causes breathing problems and even cancer.,air pollution,breathe v.呼吸,In some cities,this kind of pollution is caused by many cars.Thegovernment has done s
3、omething useful to stop it.,noise pollution,This kind of pollution influencesour environment.,litter,Influence v./n.影响have/has an influence on sb./sth.对某人/某物有影响eg:All kinds of pollution have bad influences on us.,This kind of pollution is harmful to birds.,light pollution,harmful adj.有害的 be harmful
4、to sb./sth 对有害=do harm to sb./sth.eg:Sweet food is harmful to/does harm to childrens teeth.,2.Work alone,It is generally believed that pollution does great harm to animals.Listen and number the pictures.,6,4,3,2,1,5,（录音）,There are some bees and butterflies dancing.There be+sth./sb.doing sth.“有某人或某物正
5、在做”如：Look,there is a rabbit running.There are some fishes swimming in the stream.,Look,there are several chemical factories pouring waste water into the stream.,(Kangkang,Jane,Maria and Michael are planning a picnic.)Listen to 1a,answer the questions.,1.Where are they going to have a picnic?The West
6、 Hill2.What has happened there?Everything has changed.,Watch the flash about 1a,and find out what Kangkang said about the West Hill in the past and at present.,What did Kangkang say about the West Hill in the past?,Its a beautiful place with lots of flowers and grass.The air is fresh and the water i
7、s clean,and you will see bees and butterflies dancing.,Kangkang said,“It is a beautiful place with lots of flowers and grass.”,Kangkang said that it was a beatiful place with lots of flowers and grass.,直接引语变为间接引语：直接引语为陈述句时，用连词that引导，that在口语中常省略。同时要注意当主句是一般过去时时，从句的时态也要相应的变为过去的某种时态。还要注意人称的变化呦！例如：,Prac
8、tise,She said,“I dont like computers.”,She said that she didnt like computers.,He said,“I have been to Canada.”He said that he had been to Canada.,Kangkang said,“The air is fresh and the wateris clean,and you will see bees and butterfliesdancing.”,Kangkang said(that)the air was fresh and the water w
9、as clean,and they would see bees and butterflies dancing.,What did Kangkang say about the West Hill at present?,The flowers and grass have gone!The water is so dirty.It smells terrible.,Kangkang said,“The flowers and grass have gone!”Kangkang said that the flowers and grass had gone.Kangkang said,“The water is so dirty.”Kangkang said that the water was so dirty.Kangkang said,“It smells terrible.”Kangkang said that it smelt/smelled terrible.,We must protect our environment from now on.,Goodbye!,
