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1、教学课题：Module12SaveourworldUnit3项目设计内容备注课时第一课时课型Revisionandapplication教具Multi-media教学目标知识与能力Tosummarizeandconsolidatetherulesofwordbuilding.过程与方法Reviewtherulesofwordbuildingandtheuse.态度与情感Toknowhowtoprotecttheenvironment.重点Understandthewordsformedbywordbuilding.难点Knowabouttheimpor
2、tanceofprotectingourenvironment.教学手段方法讲解前辍、后缀构词法，对前两单元出现的知识点和重点进行总结和归纳。教学过程教师活动学生活动说明或设计意图Step1Observethefollowingsenteccescarefully.1.Reusemeans“useagain”.2.Thoughpollutionisheavynow,Idon’tthinkit’shopeless.3.Iftheriversarepolluted,farmerscan’tusethewaterfortheircrops.4.Ifevery
3、onestartstodosomething,theworldwillbesaved.Step2构词法的三种规则1.合成法：将两个或两个以上独立且语义不同的单词合在一起独立构成新词的方法。合成名词：airport,afternoon,合成形容词：kind-hearted合成副词：however,maybe合成代词：himself,everyone,合成动词：overlook2.派生法：通过在词根前面加前缀或在词根后面加后缀构成一个新词的方法。dis-不disagree,dislikeen-使……处在某种状态enableim-,in-:不impossib
4、le,impatientinter-:在……之间internationalmis-:错误的misleadnon-:不non-smoker,non-nativere-:再，重复rewrite,tetellun-:不unable,unhappy3.转换法：把一种词性转化为另一种词性而词形不变的方法。v.→n.talk:谈论→谈话n→v.water:水→浇水adj.→n.black:黑色的→黑衣服Step3Makenewwords.JointhepartsofthewordsinBoxAwiththewordsinBoxB.youneedtousesomeo
5、fthepartsmorethanonce.careful,careless,collectablehopeful,hopeless,impossiblereuse,usable,useful,useless,unusual,unwanted,wastefulStep4Workingroups.PlaytheguessinggameEnglishforFun.1.fullofcare:careful2.canbecollected:collectable3.fullofhope:hopeful4.withoutanyhope:hopeful5.notp
6、ossible:impossible6.notusual:unusual7.withoutanyuse:useless8.useagain:reuse9.notwanted:unwanted10.makingalotofwaste:wastefulStep5Completethesentenceswiththewordsinthebox.1.Pollutedwateris_________.2.Itis_________tothrowsomuchfoodaway.3.Ifyoulookafterthingswell,youmay_______someo
7、fthemlater.4.Itis_________tocleanupthewholeriverinsuchashorttime.5.Ifwepayattentiontopollutionnow,thefuturewillbe_________.1.healthy2.wasteful3.reuse4.impossible5.hopefulStep6CompletethetableinActivity3.use—useful/useless—usefullyhope—hopeful/hopeless-hopefullypollution–pollute—
8、pollutedwater–waterwaste—wasteful/wasted-wastef
