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Unit4AmazingScienceTopic1Whenwasitinvented?SectionAisspokenbyShespeaksChinese.isspokenbyHespeaksEnglish.EnglishEnglish.Hehim.ChineseChinese.Sheher.被

动语态(PassiveVoice)be+done主动语态：主语+动词+宾语被动语态：主语+be+过去分词+by+宾语Manypeopleusecomputers.Computers_____________

by________________.Theworkersplanttreesinthegarden.Trees____________inthegarden____theworkers.areusedmanypeopleareplanted

byCanyoutry？Exercise1.Trees__________(water)inourschooleverythreedays.2.Thezoo___________(visit)bylotsofchildrenonweekends.3.AJourneytoWest____

____(show)onCCTVeverysummer.4.OnChristmasDay,childrenwakeupearlyandcan’twait______(open)theboxesofpresents.5.We’llhaveachance_____(s

ee)theflowershowthisweekend.toopenisshownarewateredtoseeisvisitedA:What’sthelockmadeof?B:It’smadeofmetal.A:What’situsedfor?B:It’suse

dforlockingthedoor.n.锁v.（用锁）锁上，被锁住2Followtheexampletomakeupsimilarconversations.lock/metalA:What’sthepapermadefrom?B:It’smadef

romwood.A:What’situsedfor?B:It’susedforwritingon.paper/woodbemadeof由某种物质做成(看得出原材料，物理过程)bemadefrom由某种物质制成(看不出原材料，化学过程)beus

edfor用于做某事12computerdesk/woodchopsticks/bamboosweater/cottonwatch/metalA.What’sitmadeof?B.It’smadeofmetal.A.Doyouknowwh

atitisusedfor?B.It’susedforsendingsatellitesorspaceshipsintospace.Wow!Amodelrocket!1aListen,lookandsay.WhyisJaneunhappy?BecauseJanewasn

otallowedtoplaycomputergameslastnight.allowv.允许1.allowsb.todosth.允许某人做某事2.allowdoingsth.允许做某事3.beallowedtodosth.被允许

做某事聚焦一般过去时的被动语态结构:助动词(was/were)+及物动词的过去分词1.肯定句式：主语+was/were+v.-ed2.否定句式：主语+was/were+not+v.-ed3.一般疑问句式：Was/Were+主语+vt.-ed4.特殊疑问句式：疑问词W/H+

was/were+主语+v.-edE.g.Ane-mailwassenttoherfriendbyJaneyesterday.Ane-mailwasn’tsenttoherfriendbyJaneyesterday.Wasane-mailse

nttoherfriendbyJaneyesterday?Whowasthee-mailsenttobyJaneyesterday?Let’ssumuptogether.1aListen,lookandsay1bListen

to1aandmarkT(True)orF(False).1.Janeisunhappybecauseshewasnotallowedtogotoapartylastnight.()2.Kangkang’sfathermadeamodelrocketforhim.()3.Ther

ocketismadeofmetal.()4.Arocketisusedforsendingsatellitesorspaceshipsintospace.()FFTT1cRead1aandanswerthefollowingque

stions.1.WhydidKankangaskJanenottospendtoomuchtimeoncomputergames?It’sbadforherhealthifshespendstoomuchtimeonthem.tootire

dheadachesoreeyes2.What’sarocketusedfor?It’susedforsendingsatellitesorspaceshipsintospace.beusedfor被用来做beusedtodo被用来做beusedas被用作usedtodosth.过去常做beu

sedtodoingsth.习惯于做3.WhotaughtKangkangsomeknowledgeaboutspaceships?Mr.Brown.4.What’sKangkang’sdream?Hewishe

shecouldgointospacesomeday.someday----某一天，总有一天(将来)e.g.IwishIcouldhavemyownhousesomeday.Ihopehisdreamwillcometrue.cometrue----变成真的,实现realize

/achieve---makesth.cometrue3.Listentotheconversationsandnumberthefollowingpictures.231Changethefollowingsentences.1.Mymotherallowsmet

ousehercellphone.(改为被动语态)I________________usemymother’scellphone.2.Arocketisusedforlaunchingsatellitesandspaceships.(就画线部分提问)_______arocket______?

3.Thedigitalcamerawasinventedin1975.(就划线部分提问)________thedigitalcamera_______?4.Maybeheisaninventor.(改为同义句)He________anin

ventor.amallowedtoWhatisusedforWhenwasinventedmaybeSummaryWelearn:1.Somewords:lock,rocket,metal,satellite,spaceship2.Somephrase

s:bemadeof,beusedof,someday,cometrue3.Somesentences:(1)IwishIcouldgointospacesomeday.(2)Ihopeyourdreamwillcometrue.(3

)-Whatisarocketusedfor?-It’susedforsendingsatellitesorspaceshipsintospace.Wecan:Usethepassivevoice.•Read1a

.•Memorizetheusefulexpressionsandkeysentencesthatwelearntoday.•FinishSectionAinyourworkbook.•PreviewSectionB.