教学设计示例lesson

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1、教学设计示例Lesson22StepI.Introduction:Showsomepicturesaboutpollution.StepII.Fastreading:A.Searchforanswers:(Now,I’llgiveyou2minutestofindouttheanswers:　　1.whatinternationalorganizationhasbeenmentionedinthetext?　　2.InChina,whatisbecomingaseriousproblem?B.Readagainan

2、danswerTorF:　　1.Ifwasteispouredintoriversorseaswithoutbeingtreated,whatwillhappen?　　2.Howisdangerouswasteuausllydealtwith?　　3.Whatproblemsdoesthrowingawayrubbishcauseinwesterncountries?　　4.WhatisthesituationlikeinChina?　　5.Whathasbeendoneforenvironmentalprotec

3、tion?StepIII.Fillinblanks.Dealingwithwaste　　1.Wastemustbe__treated___sothatitdoesnotbecomeadangertolife.(paragraph1)　　2.Whenthisriverfinallyreachesthesea,itpollutestheocean.(paragraph1)　　3.Humanwasteispipeddirectlyintotheseawithoutbeingtreated.(paragraph2)　　4.

4、Itisnowagainstthelawtothrowanythingintotheseawithin5kilomnetresofland.(paragraph3)　　5.Theyseektoreducewaste,protecttheearth,theoceansandallformsoflifeinthem.(paragraph5)Thethrow-awaysociety　　1.Thiscausesmanyproblems.(paragraph1)　　2.Thisisaparticularproblemforl

5、argecities.(paragraph1)　　3.InChina,rubbish,suchasusedplasticbagsandboxesknownas“whitepollution”.(paragraph1)StepIV.Groupwork.(Dividetheclassintoseveralgroupsandprovidethemwithsometopicsofthetext,suchas:　　1)HowdopeoplepollutetheOcean?(basedonthetext,theSscanadd

6、something.)　　2)Howdopeopleprotecttheseaandstopthepollution?(basedonthetext,theSscanaddsomething.)　　3)WhataretheproblemsinChina?(basedonthetext,theSscanaddsomething.)(Givethemsomeminutestoprepareandsaytheiropinions)StepV.Languagpoints:　　1.breakdown与breakup　　bre

7、akdown:“分解”，可指物理变化或化学变化，如：　　Aftermanyyears,rocksbrokedownintodirt.（经过多年以后，岩石就分解成尘埃。）　　Watercanbebrokendownintohydrogenandoxygen.(水可以分解成氢和氧)　　当表示“拆散”意思时，breakdown与breakup通用。如：　　Theoldcarswerebrokendownupfortheirparts.(旧汽车被拆散以取得其零部件。)　　breakup:“撞毁，解体”如：　　Theshi

8、pwasbreakingupontherock.(船在礁石上撞毁。)　　2.dependon:“取决于…““靠…决定”如：　　Thepricedependsonquality.(价格取决于质量。)　　3.withoutdoing:通常在句中作方式状语。这里的动词-ing形式，可以是一般式，完成式，复合结构和被动语态等，表示“(某人)未做，未曾做，未经…，未被