九年级英语全册Unit6Whenwasitinvented（TheSecondPeriod—SectionA3a－4c教案（新版）人教新目标版.docx

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1、TheSecondPeriod—SectionA(3a－4c)TeachingImportantPoints　【教学重点】　Keywords&phrases：　ruler，boil，remain，smell，national，trade，doubt，fridge，low，somebody，translate，lock，ring，earthquake，sudden，bell，biscuit，cookie，musical，instrumentbyaccident，takeplace，fallinto，maketea，lessthan，wi

2、thoutdoubt，allofasudden　Keysentences：　1.Didyouknowthatteawasinventedbyaccident?　2.Mostpeoplebelievethatteawasfirstdrunkabout5，000yearsago.　3.Itissaidthat…　4.Itisbelievedthat…　5.InEngland，teadidn'tappearuntilaround1660.　Keystructure：　S＋was/were＋pastparticiple＋…eg：Oneofth

3、eworld'sfavoritedrinkswasinventedbyaccident.TeachingDifficultPoints　【教学难点】　★Practicethepassivevoiceinreadingcomprehension.LearnaboutChineseteaculture.TeachingAids　【教学工具】　Ataperecorder，CAIormultimediacourseware.TeachingSteps　【教学过程】★Step1　Leadingin　【新课导入】1．Greeting2．Brain

4、stormingQuicklyaskquestions.Likethis：Whenwas…invented？Whatisit/aretheyusedfor？…3．Askpairsofstudentstoactouttheconversationin2dandthenseewhocanmaketheirownconversations.★Step2　Cooperativeinquiry　【合作探究】1．Finishthetaskin3a①Telltheclassthattodaywearegoingtoreadaboutanaccide

5、ntalinvention.Write“Anaccidentalinvention”ontheboard.Ask：Whatdoesitmean？Canyouthinkofaninventionthatwasinventedbyaccident？Getthestudentstodiscuss.②Quicklyreadthepassageandmatchtheparagraphswiththemainidea.Donotmentionthenewwordsandexpressionsatthisstage.③Checktheanswers

6、andaskwhytheythinkso.2．Finishthetaskin3b3．Finishthetaskin3c①Readtheinstructions.Readthefivesentencesandthewordsbesidethem.②Fillintheblanksbythemselves.③Getthestudentstolearnthenewitemsinthepassage.④Checktheanswerswiththewholeclass.4．FinishGrammarFocus①Readaloudthesenten

7、cesinthegrammarframeuntilfluently.②Findoutthepassivestructurewithstudents.③Writethesentencesintheiractivevoiceontheblackboard.Getthestudentstocomparethemwithpassivevoice.Askthestudentsaboutthechangesofthesubject，theverbformsandthemeanings.Practicesomesentencesbyturningt

8、heactivevoiceintothepassivevoice.5．Finishthetaskin4a6．Finishthetaskin4b7．Finishthetaskin4c★Step3　Homework1．Try