Unit 5 Power of Ideas Section A Grammar Focus 课件（内嵌视频）2026-2027学年人教版英语九年级上册

Unit5PowerofIdeasGrammarFocusReviewFillinthechart动词原形过去式过去分词dobebuycutgohavefinddonedidboughtboughtcutcutgonewenthadhadfoundfoundbeenwas，were1.掌握并正确运用词汇：telephone,suppose,besupposedtodo,wheel,frozen,eastern,layer,melt,pipe,tourism,gain2.掌握一般现在时和一般过去时的被动语态LearningObjetivesIate

anapple.（主动语态,强调动作执行者）Read&compareAnapplewaseatenme.by被字句两个句子描述的是同一件事，区别是什么？

（被动语态,强调动作承受者）Herclothesarewashedby主动语态被动语态everyday.shewashesherclotheseveryday.herGrammarFocus英语中有两种语态，即主动语态(theactivevoice)和被动语态(thepassivevoice)。主动语态表示主语是谓语动作的执行者。被动语态表示主语是谓语动作的承受者。

1.被动语态的含义主动语态：Jacktellsastory.被动语态：AstoryistoldbyJack.be动词(am/is/are/was/were)+及物动词的过去分词be动词随主语的人称和数及时态的变化而变化

2.被动语态的构成注：只有及物动词(vt)才有被动语态。例如：Irun/cry没被动语态。

3.被动语态的用法动作承受者需强调重点在这件事上不知道、没必要不知道谁烧的楼不必提及动作的执行者Thebuildingwasburneddown.不说出动作执行者出于礼貌避免说出执行者You

shouldberequestedtomakeaspeechatnextmeeting.Thesebooks

arewritten

especiallyforchildren.4a.Readthesentences.Circletheverbsinthepassivevoice.Amini-cameraisconnectedtothefrontoftheglasses.Theoilandsaltarealsoaddedbythemachineitself.Toys,chairs,tables,andevenhousescanallbemadebythe3Dprinter.AradiomessagewassentacrosstheAtlanticOceanforthefirsttimein1901.被动语态

一般现在时的被动语态

一般现在时的被动语态含情态动词的被动语态一般过去时的被动语态1.Thetelephone____________(invent)byAlexanderBellin1876.2.Peopleallovertheworld_____________(connect)toeachotherthroughtheinternet.3.Theword“robot”______________(introduce)forthefirsttimeinaplayin1920.4b.Completethesentenceswiththecorrectformsoftheverbsinbrackets.wasinventedareconnectedwasintroduced基础巩固4.Itwasn’tsupposedtomakesuchaloudnoisewhenthebutton___________(press)tostartthemachine.5.Itisbelievedthattheworld’soldestwheel_________(find)inEasternEurope.besupposedtodo/besth应当做（某事）或是（某物）waspressedwasfoundTheQinghai-XizangRailwaywascompletedin2006.It__________(connect)XiningtoLhasa,ahugedistanceof1,956kilometres,anditisthehighestrailwayintheworld,reaching5,072metresabovesealevelatTanggulaPass.Thebuildingoftherailwaywasagreatchallenge.4c.Completethepassagewiththecorrectformsoftheverbsinbrackets.MakeaprofileoftheQinghai-XizangRailway.connectsCreativeideas_____________(need)tosolvedifferentproblems.Insummer,thetoplayerofthefrozengroundwouldmeltandbecometoosofttobuildon,sopipes___________(use)tokeepthegroundhard.However,insomeplaces,itwasimpossibletobuildtherailwayoverthefrozenground,sotunnelshadto___________(create)instead.Insomeotherplaces,bridges________(build)tokeeptherailwayupabovetheground.Thesebridgesareanimal-friendlyand_______(allow)animalstopasswereneededwereusedbecreatedwerebuiltallowunderthetracks.Asanimportantandsuccessfulproject,therailwayhas__________(increase)tourismandeconomicdevelopmentinthearea.Thelessonslearntandexperience