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Unit4AmazingScienceTopic1Whenwasitinvented?SectionAI.Teachingaimsanddemands:1.MastertheuseofthePassiv

eVoiceinthePastTense.2.Trytotalkaboutthematerial,theuseandtheproductionplaceandtimeofanobject.3.Gettoknowsomesciencetechnology.II.Teac

hingkeypointsanddifficulties.Keypoints:Somesentences:What’sitmadeof/from?It’smadeof/from……What’sitused

for?It’susedfordoing…….Whenandwherewasitinvented?Itwasinvented………..Difficulties:1.ThePassiveVoiceinthePastTense:was/were+done

2.Thedifferenceofsomephrase:bemadeof/from/by/in/upintobeusedfordoing/todo/as……III.Teachingsteps:Step1.Revision1.ReviewthePas

siveVoiceinthePresentTense.e.g.HespeaksEnglish.Englishisspokenbyhim.2.Showsomepictures.Studentstrytocompletethesentencewith

thePassiveVoiceinthePresentTense.e.g.Manypeopleusecomputers.Computersareusedbymanypeople.Theworkersplanttreesinthegarden.Treesareplantedi

nthegardenbytheworkers.3.Brainstorm.DosomeexercisetoreviewthePassiveVoiceinthePresentTense.Step2.Presentation.1.Showapictureofalock.Presentth

efollowingsentences.A;What’sthelockmadeof?B:It’smadeofmetal.A:What’situsedfor?B:It’susedforlockingdoors.Studentstrytopracticeingroupsandtheninpairs.

Showmorepictures,presentstheuseofbemadefrom.Trytomakethestudentsfindoutthedifferenceofbemadeofandbemadefrom.2.Present:Whenandwherewasitinvente

d?Emphasizetheuseofwas/were+done.Step3.Practice.1.Studentstrytoworkingroupoffour.Theytrytomakedialoguesaccordingtothepicturesin2a.2.Thenteacherasks

somegroupstopresenttheirdialoguesinthefrontoftheclassroom.3.Studentstrytosummarizesomephrase:beusedfor/to/by/asStep4.Consolidation.1.Te

achershowamodelrocket.Studentstrytotalkaboutthematerial,theuseandtheplaceandtimeofproduction.2.Listento1aandfinishthequestion:WhyisJaneunhappy

?3.Listenagainandfinish1b.Checktheanswers.4.Studentsread1aaloudandfinish1c.WhydidKangkangaskJanenottospendtoomuchtimeonthecomputergames?It’s

badforhishealthifhespendtoomuchtimeonthecomputergames.Trytomakethestudentsrealizethedamageofplayingcomputergames.5.Listentothet

apeandnumberthepicturesin3a.Thenfinishthetablein3b.6.Workinpairs.Askandanswerquestionsbasedonthetablein

3bwithPassiveVoice.e.g.What’salaptopmadeof?What’situsedfor?Whenandwherewasitdeveloped?Step5.Project.1.Studentt

rytosearchsomeusefulinventionsandtalkaboutthembyusingthesentencestheyhavelearnedtoday.2.Makeatableofthem.Reporttheminthefrontoftheclassroomint

henextclass.3.Homework:ExerciseBook:SectionA