Unit4AmazingScienceTopic1Whenwasitinvented?I.Thekeypointsanddifficultpoints1.Keypoints:Wordsandphrases:lock,metal,bemadeof,bemadefrom,bemadein,beusedfor,beallowedtodosth.Sentences:What’sitmadeof?It’smadefromwood.What’situsedfor?It’susedforlockingthedoor.IwishIcouldgointospacesomeday.Ihopeyourdreamwillcometrue.Grammar:was/were+pp2.Difficultpoints：bemadeof和bemadefrom的用法辨析。IwishIcouldgointospacesomeday.It’susedforwritingon.II.Learningstrategies通过温习一般现在时的被动语态知一般过去时的被动语态，实现从一般现在时的被动语态到一般过去时的被动语态的转换。通过联系生活实践，来区分bemadeof和bemadefrom。在交流中，重在表意，不要担心出错。III.TeachingproceduresStageIRevision&lead-inStep1:LettheSschangethesentencesinGroupAintopresentpassivevoice.Step2:PresentthesentencesinGroupBandencouragetheSstodiscussingroupsandchangethemintopassivevoice,too.Step3:LettheSsobservethetwogroupsofsentencesandtrytofindthedifferencesbetweenthem.Movetopastpassivevoice.StageIIPre-listeningStep1:Usepictures,realobjectsorPPTtoteach:rocket,satellite,spaceship,metal.Step2:LettheSsreadthestatementsin1bandguessthemeaningofbemadeof.StageIIIWhile-listeningLettheSslistento1aanddo1b.Now,listento1aanddo1b.Wewillchecktheanswersafterlistening.StageIVPost-listeningStep1:LettheSsreadthequestionsin1c,andthenread1aandfindtheanswerstothequestions.Step2:LettheSsread1aagainandunderlinethepassivevoiceandthekeypoints.StageVFinishingTask2Step1:LettheSsreadtheexamplesin2andfindthedifferencesbetweenExampleOneandExampleTwo.Step2:LettheSsmakeupsimilardialogsinpairs.StageVIFinishingTask3aStep1:LettheSslookatthepicturesin3atolearnthenewwordslaptopanddigital,andthenlistento3aandnumberthepictures.Step2:LettheSslistento3aagainandfillinthetablein3a.StageVIIFinishingTask3bLettheSsreadtheexamplein3b,andthenmakeupsimilardialogsinpairsbasedontheinformationinthetablein3b.StageVIIISummarizingandassigninghomeworkStep1:LettheSsgooverthissectionandsumupthekeypointsStep2:HMKSectionBI.Thekeypointsanddifficultpoints1.Keypoints:Wordsandphrases:bulb,airplane,bedifferentfrom,bemadeof,beusedfor,sothat,notonly...butalso…,allovertheworldSentences:It’ssaidthatheinventedmorethantwothousandthingsduringhislife.Theyaredesignednotonlyforworkersbutalsoforteenagersandwomen.Grammar:was/were+pp2.Difficultpoints：It’ssaidthatheinventedmorethantwothousandthingsduringhislife.Nowadays,theirmaterialshavebeenchangedsothatitfeelsmorecomfortable.II.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。III.TeachingproceduresStageIGettingstudentsreadyforlearningLettheSsplaytheguessinggameT:Areyougoodatguessingtheriddles?T:OK.Hereisariddle.…StageIIPre-listeningStep1:PresentthepicturesofThomasEdison,GuglielmoMarconi,WilburandOrvilleWright.LettheSslearntheirnames.Step2:Readthequestionsin1b.StageIIIWhile-listeningLettheSslistento1aanddo1b.Checktheanswers.Finish1b.T:Listento1acarefullyanddo1b.StageIVPost-listeningStep1:LettheSsread1aanddo1c.Step2:LettheSsdotheguessinggameandfinish1d.Step3:LettheSsread1aagainandfindoutthedifficultandkeypoints.StageVFinishingTask2Step1:LettheSsdo2,checktheanswersandfinish2.Step2:WritedownontheBbthesentence“Nowadays,theirmaterialshavebeenchangedsothatitfeelsmorecomfortable”.LettheSsunderstandtheperfectpassive.StageVIFinishingTask3LettheSslisten...
