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1、英语教学课件外研九年级上册Unit3LanguageinuseModule12SaveourworldTosummarizeandconsolidatetherulesofwordbuildingObjective:语法讲解建议采用归纳法，如尽可能多的呈现一些相关例句，或可让学生从已学课文中找相应例句，引导学生试着从所观察到的语言现象中总结出语法规律。ObserveObservethefollowingsentencescarefully.Theyareallfromthismodule.1.Reusemeans“useagain”.2.Thoughpoll
2、utionisheavynow,Idon’tthinkit’shopeless.3.Iftheriversarepolluted,farmerscan’tusethewaterfortheircrops.4.Ifeveryonestartstodosomething,theworldwillbesaved.5.Weallneedahealthyenvironment,butweproducewasteeveryday,anditisharmfultoourenvironment.6.Donotwastethings.7.Repeatthesethreewor
3、dsdaily:reduce,reuseandrecycle.8.Beforeyoubuysomethingnew,thinkwhetheritisreallynecessarybecausemaybeoldoneisjustasgood!9.…butlet’stakethesesimplestepstodaysothatwewillsavetheworldforourgrandsonsandgranddaughterstomorrow.1._______(use)means“useagain”.2.Though________(pollute)isheav
4、ynow,Idon’tthinkit’s________(hope).3.Iftheriversarepolluted,________(farm)can’tusethewaterfortheircrops.4.If_______(everyone)startstodo_________(something),theworldwillbesaved.5.Weallneeda_______(health)environment,butweproduce_______(waste)everyday,anditis_______(harm)toourenviron
5、ment.ReusepollutionhopelessfarmerseveryonesomethinghealthywasteharmfulgoReady?6.Donot______(waste)things.7.Repeatthesethreewordsdaily:reduce,_______(use)and_______(recycle).8.Beforeyoubuy_________(something)new,thinkwhetheritis_______(real)necessarybecausemaybeoldoneisjustasgood!9.
6、…butlet’stakethesesimplestepstodaysothatwewillsavetheworldforour_________(grandson)and_________(granddaughter)tomorrow.wastereuserecyclesomethingreallygrandsonsgranddaughters构词法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构成新词的方法称作合成法。合成名词afternoon,sportsman,blackboard,newspaper,airplane,classmate…合
7、成形容词kind-hearted,middle-aged,hard-working…合成副词however,maybe…合成代词himself,everyone,nothing…合成动词overlook…2.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称作派生法。前缀含义例词dis-不disagree,dislikeen-使……处在某种状态enable,enrichim-,in-不impossible,impatient,inexpensiveinter-在……之间international,interconnectmis-错误的misle
8、ad,misunderstandnon-不，非non
