深圳牛津版英语八年级下册课件-U4-Grammar.ppt

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1、Module2ArtsandCraftsUnit4CartoonsandcomicstripsGrammarThepassivevoiceObjectivesToknowtheusageofthepassivevoicewithmodalverbsandthepassivevoiceinthepresentperfecttenseTolearntousethepassivevoicecorrectly1.TheworkhasbeenfinishedbyJim.2.Manytreesshouldbeplantedo

2、nthemountains.3.Teenagersshouldbeallowedtogooutwiththeirfriends.4.Tablescanbemadeofstone.5.Hecannotbefound.6.Suchamanhashardlybeenbelieved.7.Thebookhasbeenborrowedbyateacher.8.Thedoorhasbeenlocked.9.Thehousehasbeenbuilt.1.Thework________________byJim.2.Manytr

3、ees_________________onthemountains.3.Teenagers_______________togooutwiththeirfriends.4.Tables______________stone.5.He______________.6.Suchaman____hardly____________.7.Thebook__________________byateacher.8.Thedoor______________.9.Thehouse_____________.hasbeenf

4、inishedshouldbeplantedshouldbeallowedcanbemadeofcannotbefoundhasbeenbelievedhasbeenborrowedhasbeenlockedhasbeenbuiltgoReady?将下列句子改为被动句。1.Thepolicehavecaughtthethief.Thethiefhasbeencaughtbythepolice.2.Shecan’tfinishherworktoday.Herworkcan’tbefinishedbyhertoday

5、.3.Hehasn’tsentthosebooks.Thosebookshaven’tbeensentbyhim.4.Weshouldwritealettertothegovernment.Alettershouldbewrittentothegovernmentbyus.5.Mustpeopleeatvegetableseveryday?Mustvegetablesbeeatenbypeopleeveryday?知识脉络被动语态情态动词的被动语态被动语态的现在完成时情态动词的被动语态1.被动语态表示主语是谓语动

6、作的承受者，被动语态构成：be+v-ed（be随着主语人称和数以及时态的不同而变化）2.情态动词具有一定的意义，但不能单独作谓语（情态动词+动词原形→句子谓语）情态动词(除haveto以外)没有人称和数的变化情态动词可用来构成否定句、疑问句并进行简略回答初中常见的情态动词有：can,may,must,need,haveto,could,should,oughtto等含有情态动词的被动语态构成：can/must/may/should…+be+V-ed变为否定句：情态动词+not变为一般疑问句：情态动词置于句首Wes

7、houldplantmanytreesonthemountains.我们应该在山上种许多树。→Manytreesshouldbeplantedonthemountains.Parentsshouldallowfourteen-year-oldstochoosetheirownclothes.父母应该允许十四岁的少年选择他们自己的服装。→Fourteen-year-oldsshouldbeallowedtochoosetheirownclothes(byparents）Youcantakethisbookhome.

8、你能把这本书带回家。→Thisbookcanbetakenhome(byyou).Musttheworkbedoneatonce?工作能马上做完吗？Thisproblemcan’tbeworkedoutveryeasily.解决这个问题没那么容易。现在完成时的被动语态have/hasbeendone现在完成时被动语态现在完成时的被动语态1.被动语态的现在完成时构成：hav