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Unit4AmazingScienceTopic1Whenwasitinvented?SectionAI.Teachingaimsanddemands:1.MastertheuseofthePassiveVoiceintheP

astTense.2.Trytotalkaboutthematerial,theuseandtheproductionplaceandtimeofanobject.3.Gettoknowsomesciencetechnology.II.Teachi

ngkeypointsanddifficulties.Keypoints:Somesentences:What’sitmadeof/from?It’smadeof/from……What’situsedfor?It’susedfordoing…….Whenand

wherewasitinvented?Itwasinvented………..Difficulties:1.ThePassiveVoiceinthePastTense:was/were+done2.Thedifference

ofsomephrase:bemadeof/from/by/in/upintobeusedfordoing/todo/as……III.Teachingsteps:Step1.Revision1.ReviewthePassiveVoiceinthePresentTense.e.g.H

espeaksEnglish.Englishisspokenbyhim.2.Showsomepictures.StudentstrytocompletethesentencewiththePassiveVoiceinthePresent

Tense.e.g.Manypeopleusecomputers.Computersareusedbymanypeople.Theworkersplanttreesinthegarden.Treesareplantedin

thegardenbytheworkers.3.Brainstorm.DosomeexercisetoreviewthePassiveVoiceinthePresentTense.Step2.Presentation.1

.Showapictureofalock.Presentthefollowingsentences.A;What’sthelockmadeof?B:It’smadeofmetal.A:What’situsedfor?B:It

’susedforlockingdoors.Studentstrytopracticeingroupsandtheninpairs.Showmorepictures,presentstheuseofbemadefrom.Trytomakethestudentsfindoutthed

ifferenceofbemadeofandbemadefrom.2.Present:Whenandwherewasitinvented?Emphasizetheuseofwas/were+done.Step3.Practice.1.Studentstrytoworkingroupoffour.

Theytrytomakedialoguesaccordingtothepicturesin2a.2.Thenteacheraskssomegroupstopresenttheirdialoguesinth

efrontoftheclassroom.3.Studentstrytosummarizesomephrase:beusedfor/to/by/asStep4.Consolidation.1.Teachershowamodelrocket.Stu

dentstrytotalkaboutthematerial,theuseandtheplaceandtimeofproduction.2.Listento1aandfinishthequestion:WhyisJaneunhappy?3.Listenagainan

dfinish1b.Checktheanswers.4.Studentsread1aaloudandfinish1c.WhydidKangkangaskJanenottospendtoomuchtimeonthec

omputergames?It’sbadforhishealthifhespendtoomuchtimeonthecomputergames.Trytomakethestudentsrealizethedamageofplayingcomputergames.5.List

entothetapeandnumberthepicturesin3a.Thenfinishthetablein3b.6.Workinpairs.Askandanswerquestionsbasedonthetablein3bwith

PassiveVoice.e.g.What’salaptopmadeof?What’situsedfor?Whenandwherewasitdeveloped?Step5.Project.1.Studenttrytose

archsomeusefulinventionsandtalkaboutthembyusingthesentencestheyhavelearnedtoday.2.Makeatableofthem.Repo

rttheminthefrontoftheclassroominthenextclass.3.Homework:ExerciseBook:SectionA