九年级英语全册《unit 9 when was it invented section a(3a-4)》教案 人教新目标版

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1、山东省郯城县第三初级中学九年级英语全册《Unit9WhenwasitinventedSectionA(3a-4)》教案人教新目标版主备人：课型new课时第2课时时间年月日分管领导验收结果第周第课时总第课时教学目标1、ReadingandWriting2、掌握词汇buldlightbuldmicrowavemicrowaveoven重点、难点1.Thenewwordsandphrases2.Improvethereadingskills3.Writing教学过程教师活动学生活动修改意见Step1.Warm–up.1).D

2、ailyreport2)NewwordsandexpressionsbuldlightbuldmicrowavemicrowaveovenStep23aPAIRWORKMakealistoffivehelpfulinventionsandfiveannoying.HelpfulinventionsAnnoyinginventionsExample:telephoneExample:alarmclockStep3SslistencarefullyandanswerquestionsLearnthenewwordsande

3、xpressions.Thenmakesentenceswiththem..Thenaskstudentstosayabouttheanswersatomicbomb（原子弹）missile（导弹）rifle(步枪)chemicalweaponinstantglue(速干胶)bikecomputercartrain3bPAIRWORKA:Whatdoyouthinkisthemosthelpfulinvention?B:Ithinkthemosthelpfulinventionisthelightbulb.A:Whyi

4、sthat?B:Well,itgivespeoplemoretimetoworkandplayeveryday.A:Whatdoyouthinkisahelpfulinvention?B:Ithinkitisthecar.A:Whyisthat?B:Well,itmakesitpossibleforpeopletomovetodistantplacesfaster.Step4Exx1)Thebike__________(fix)upbyXiaoMingyesterday.2)Sunglasses__________(u

5、se)forprotectingpeople’seyes.3)Apicture_________(put)upontheblackboard.4)French___________(speak)inFrance.5)Teenagersshould__________(allow)tochoosetheirownclothes.Thepassivevoice.被动语态主动语态变为被动语态的步骤:1.把原主动句中的宾语转换为被动语态的主语。2.把动词改为被动形式，即“be+过去分词”。注意be动词要按新的主语的人称和数进行

6、变化，时态要和原来的主动语态的时态保持一致。3.原来主动语态句中的主语，如果需要，就放在by后面以它的宾格形式出现。如果没有必要就可以省略。其他的成分(定语，状语)不变，句式也不能变。AskstudentstomaketheconversationslikethisThenchecksomestudentsThepassivevoice.被动语态英语中动词有主动和被动两种语态，主动语态表示主语是动作的执行者，被动语态表示主语是动作的承受者，在被动语态中动作的执行者有时用by短语表示出来。被动语态的构成:助动词be+(及

7、物动词的)过去分词am(is,are)+donewas(were)+done小结板书设计phrasesHelpfulinventionsAnnoyinginventionsExample:telephoneExample:alarmclockplaneatomicbomb（原子弹）computermissile（导弹）bikerifle(步枪)carchemicalweapontraininstantglue(速干胶)