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Unit4AmazingScienceTopic1Whenwasitinvented?SectionBⅠ.Materialanalysis本课是九年级第四单元第一话题的第二课时。主活动是1a。1a通过Jane和Michael谈论在博物馆所见到的展品来继续学习一般过去时的被动语态。1b和1c分别以听和填写图表来巩固1a的内容。1d则通过“说一说，猜一猜”的形式让学生运用一般过去时的被动语态。2是让学生能够根据需要正确运用一般现在时和一般过去时的被动语态。3以听力的方式，来训练对一般过去时的被动语态的运用，同时也可让学生了解更多的发明。4a和4b属于对语音语调的学习。通过本课的学习，学生可以比较性地学习两种被动语态并且了解到更多的发明创造。Ⅱ.Teachingaims1.Knowledgeaims：掌握本课的重点词汇和短语，继续学习一般过去时的被动语态。2.Skillaims:能够根据需要正确运用一般过去时和一般现在时的被动语态。能够运用正确的语音语调说、读英语句子。能够听懂含有一般过去时的被动语态的短文和对话。3.Emotionalaims:(optional)
发明创造不是一蹴而就，需要有百折不挠、永不言败的精神。4.Cultureawareness:(optional)了解英语国家的科技发明。Ⅲ.Thekeypointsanddifficultpoints1.Keypoints:Wordsandphrases:bulb,airplane,bedifferentfrom,bemadeof,beusedfor,sothat,notonly...butalso…,allovertheworldSentences:It’ssaidthatheinventedmorethantwothousandthingsduringhislife.Theyaredesignednotonlyforworkersbutalsoforteenagersandwomen.Grammar:was/were+pp2.Difficultpoints：It’ssaidthatheinventedmorethantwothousandthingsduringhislife.Nowadays,theirmaterialshavebeenchangedsothatitfeelsmorecomfortable.Ⅳ.Learningstrategies能够通过1b、1c的问题，确定在听的过程中应注意哪些细节。能够利用1c的图表来描述1a的内容。能够根据2的时间关键词来确定正确的语态。Ⅴ.Teachingaids电灯泡/汽车、飞机等图片/爱迪生等发明家的图片/录音机等。
Ⅵ.TeachingproceduresStage(timeperiod)InteractionpatternsTeacheractivityStudentactivityRemarks1Gettingstudentsreadyforlearning（5mins)ClassactivityLettheSsplaytheguessinggameT:Areyougoodatguessingtheriddles?T:OK.Hereisariddle.Asmallmelon（瓜）growsonavine（藤）.Itblossoms(开花)everynight,butthemelonnevergrows.What’sit?T:Yes.Youareright.It’salightbulb.Listentothisone.Thereisasmallhousewithoutdoors.Ithasonlywindows.Whenthelightison,itspeaks,laughsandsings.What’sit?T:Oh,youaresosmart.It’saradio.Listentothelastriddle.It’sneitherahawk(鹰)norawildgoose.Butitcanflyinthebluesky.Itcanflytenthousandmilesaday,anditislikeGuesstheriddlesSs:Yes.Ss:电灯。S1:It’saTV.S2:It’saradio.在玩的过程中，最好把本课的生词“bulb，airplane”包括进去。在讲谜语时把影响学生猜测的新词写在黑板上。
abridgeinthesky.Whatisit?T:Yeah!Yougotit.It’saplane.Wecanalsocallitanairplane.S3:It’sakite.S4:It’saplane.2Pre-listening(4mins)ClassactivityStep1:PresentthepicturesofThomasEdison,GuglielmoMarconi,WilburandOrvilleWright.LettheSslearntheirnames.T:OK,now,let’sgettoknowsomepeople.Theyinventedthesethings.Lookatthisman.Who’she?T:Yes.He’sThomasEdison.Followme,ThomasEdison.T:Thisone?T:He’sGuglielmoMarconi.Readafterme,GuglielmoMarconi.T:Howaboutthesetwo?T:They’reWilburandOrvilleWright.Repeat,please.Learnthenames.S1:爱迪生。Ss:ThomasEdison.S2:Sorry,Idon’tknow.Ss:GuglielmoMarconi.S3:Sorry,Idon’tknow.Ss:TheyareWilburandOrvilleWright.这几个人名很难读，学生在听、读时会遇到障碍。老师可以先教读几遍。
IndividualworkStep2:Readthequestionsin1b.T:Wewilllistento1anext.Beforewelistento1a,readthequestionsin1bandmakeclearwhatyoushouldpayattentionto.Readthequestionsin1b.让学生学会利用所提供的问题来确定在听的过程中应注意什么。3While-listening(3mins)IndividualworkLettheSslistento1aanddo1b.Checktheanswers.Finish1b.T:Listento1acarefullyanddo1b.T:Let’schecktheanswers.xxx,you,please!Listento1aanddo1b.Checktheanswers.Finish1b.S1:AS2:C4Post-listening(10mins)IndividualworkStep1:LettheSsread1aanddo1c.T:Now,read1aanddo1c.Ifyoufinish,raiseyourhand.T:Readytochecktheanswers?Youmayanswerlikethis“...wasinventedby…in…”.T:Wonderful!Howaboutthesecondone?Read1aanddo1cS1:ThelightbulbwasinventedbyThomasEdisonin1879.S2:TheradiowasinventedbyGuglielmoMarconiin1895.
GroupworkT:Youdidagreatjob.Thelastone?T:I’mveryproudofyou!Step2:LettheSsdotheguessinggameandfinish1d.T:Nowworkingroupstomakeriddlesbyyourself.Youwilldescribetheinventionsin1candletothergroupsguesswhatyouaredescribing.Youcanfollowtheexamplein1d.Whenyoufinish,handsup!T:Timeisup!WhichgroupwantstobeNo.1?S3:TheairplanewasinventedbyWilburandOrvilleWrightin1903.Dotheguessinggameandfinish1d.S1(Group2):It’swidelyusedbypeopleeverywhere.ItwasinventedbyanAmericaninventor.It’ssaidthathefailed999timesbeforehesucceededinthisgreatinvention.
ClassactivityT:Youallperformedverywell!Step3:LettheSsread1aagainandfindoutthedifficultandkeypoints.T:Read1aagainandfindoutthedifficultandkeypoints.T:Doyouhaveanyquestions?T:Goodquestion!It’saveryusefulexpression.Itmeanssomeonesaidsomething,butitmaybenottrue.Wehaveanotherexpression“It’sreportedthat…”.T:Whatelse?T:Howaboutthekeypoints?S2(Group4):It’slightbulb.S3(Group1):…S4(Group3):It’s…Read1aagainandfindoutthedifficultandkeypoints.S1:Whatdoesthesentence“It’ssaidthat….”inRow6mean?S2:It’ssaidthat…S3:It’sreportedthat…
S4:bedifferentfrom…5FinishingTask2(5mins)IndividualworkClassactivityStep1:LettheSsdo2,checktheanswersandfinish2.T:Now,workalone.Finishtheblanksin2.Payattentiontothetimewhenfillingintheblanks.Whenyoufinish,raiseyourhand.T:xxx,mayIbeginwithyou?T:Perfect!Step2:WritedownontheBbthesentence“Nowadays,theirmaterialshavebeenchangedsothatitfeelsmorecomfortable”.LettheSsunderstandtheperfectpassive.T:Lookatthissentence.Whocantellmewhatitmeans?Do2,checktheanswersandfinish2.S1:Sure.weren’tcalledS2:weremadeS3:was,usedS4:are,createdS5:are,designedKnowabouttheperfectpassive.S1:现在他们的制作材料已经变了，因此摸起来更舒适。要学生养成观察关键词的习惯。如：nowadays.完成时的被动语态，不要求精讲，只要学生能理解这样的句子即可。老师稍微点一下就行了。
T:S2isright.“Have/hasbeen+pp”isperfectpassivevoice.S2:现在他们的制作材料已经被改变了，以至于摸起来更舒适。6FinishingTask3(5mins)IndividualworkLettheSslistento3,checktheanswersandfinish3.T:Lookatthepicturesin3.Listentothetapeandmatchthem.T:MayIchecktheanswersnow?Youmayanswerlikethis“The…wasinventedby…in…”.Anyvolunteers?T:Welldone.Listento3,checktheanswersandfinish3.S1：ThecarwasinventedbyKarlBenzin1926.S2:ThephonewasinventedbyAlexanderGrahamBellin1876.S3:TheTVwasinventedbyJohnBairdin1885.7FinishingTask4a(3mins)IndividualworkLettheSsreadthewords,andthenlistentothetapeandcheckthevowels.T:Readthewordsfirstandpayattentiontothevowels.Readthewords,andthenlistentothetapeandcheckthevowels.
T:Now,listentothetape.Followitandcheckthevowels.8FinishingTask4b(5mins)IndividualworkPairworkStep1:Listenandreadthesentencesin4b,andfindouttherulesofstressandintonation.T:Listenandreadthesentencesin4bandfindouttherulesofstressandintonation.T:Whathaveyoufound,xxx?T:Goodjob.Step2:LettheSsmakeupsimilarconversationsusingthewordsin4a.T:Now,pairwork.Usethewordsin4atomakeupsimilarconversations.Ifyoufinish,raiseyourhand.Listenandreadthesentencesin4bandfindouttherulesofstressandintonation.S1:特殊疑问句句尾读降调。S2:陈述句句尾读降调。S3:一般疑问句句尾读升调，回答读降调。S4:句首的特殊疑问词要重读，实义动词要重读。Usethewordsin4atomakeupsimilarconversations.
T:Whichpairwantstohaveatry?S1:Whenwasthelaptopdeveloped?S2:Itwasdevelopedin1985.S1:WasthelaptopdevelopedintheU.S.A?S2:No.S1:Wherewasitdeveloped?S2:ItwasdevelopedinJapan.9Summarizingandassigninghomework(5mins)ClassactivityStep1:LettheSssumupthekeypointsofthissection.T:Now,it’stimetosumupthekeypoints.Whatarethey?Sumupthekeypointsofthissection.S1:It’ssaidthat…,It’sreportedthat…S2:bedifferentfrom,bemadeof…S3:have/hasbeen+ppS4:sothat,notonly…but
Step2:HMKT:Wehavelearnedsomeinventions.Iwouldlikeyoutothinkaboutmoreinventions,andtrytofindouttheirinventors.also…S5:…Ⅶ.BlackboarddesignWhenwasitinvented?SectionBWordsandphrases:bulbplane=airplaneGrammar:was/were+pphave/hasbeen+ppSentences:It’ssaidthatheinventedmorethantwothousandthingsduringhislife.Nowadays,theirmaterialshavebeenchangedsothatitfeelsmorecomfortable.Theyaredesignednotonlyforworkersbutalsoforteenagersandwomen.
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