九年级英语全册 unit 6 when was it invented教案4 （新版）人教新目标版

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1、Unit6WhenwasitinventedSectionA4(GrammarFocus-4c)一、Teachingaims：1.KnowledgeObjects：1)Keywords2）Makeastepfurthertoconsolidatethenewwordsandphrases3）Tofurtherlearntousethepassivevoiceofthepasttense.2.MoralObjects：：Inthefaceofdifficultproblems,withapositiveattitudeto

2、solve,二、TeachingKeyPointsandDifficulties1.TeachingKeyPoints：1)Learnthenewwords:fridge,low,somebody,translate,lock,earthquake,sudden,allofasudden,biscuit,cookie,instrument2)ReviewthewordsandphrasesinSectionA.2.Difficulties：1)Thegeneralpasttenseofthesentenceintothe

3、passivevoice.2)Comprehensiveuseoftheknowledgetopracticetheuseof.三、TeachingProcedures:Ⅰ.Warming-upandrevision1.Haveadictationofthenewwordslearnedinthelastclass.2.Reviewsomemainphraseswelearnedinthelastclass.Checkthehomework.3.LetsomeSstellsomethingabouthowteawasin

4、ventedbyaccident.Tellsomethingabouthowteawasinventedbyaccident.OnedayShenNongwasboilingdrinkingwateroveranopenfire.Someleavesfromateaplantfellintothewaterandremainedthereforsometime.Itproducedanicesmellsohetastedthebrownwater.Itwasquitedeliciousandoneoftheworld’s

5、favoritedrinkwasinvented.TellsomethingaboutLuYuandhisChaJing.LuYu“thesaintoftea”mentionedShenNonginhisbookChaJing.Thebookdescribeshowteaplantsweregrownandusedtomaketea.Italsodiscusseswherethefinesttealeaveswereproducedandwhatkindsofwaterwereused.Itisbelievedthatt

6、eawasbroughttoKoreaandJapanduring6thand7thcenturies.InEngland,teadidn’tappearuntilaround1660.TheteatradefromChinatoWesterncountriestookplaceinthe19thcentury.Ⅱ.GrammarFocus.1.ReadthesentencesintheGrammarFocus，andthendothepractice.①拉链是什么时候被发明的？___________thezipper_

7、_____?②它于1893年被发明。It_______________in1893.③它是由谁发明的？___________itinvented______?④它是由惠特科姆•贾得森发明的。It_________________WhitcombJudson.⑤茶叶什么时候被带到朝鲜去的？___________tea________toKorea?Ⅲ.Grammar一般过去时态的被动语态的构成英语有两种语态：主动语态和被动语态。主动语态表示主语是动作的执行者，而被动语态则表示主语是动作的承受者。如：Wecleanedthe

8、classroomyesterday.(主动语态，主语we是clean的执行者)Theclassroomwascleanedyesterday.(被动语态主语theclassroom是承受者)一、一般过去时被动语态一般过去时被动语态的结构为“主语+was/were+及物动词的过去分词(+by+动作的执行者).”。如：