2024年牛津深圳版八年级英语下册Unit 4 Grammar课件.pptVIP

Unit4CartoonsandcomicstripsGrammar

一般现在时的被动语态:am／is／aredone一般过去时的被动语态:was／weredone一般将来时的被动语态:will／shall?be＋done现在完成时的被动语态:Basketballisplayedbypeopleallovertheworld.Apartywasheld(bythem)lastSunday.Youwillbefinedifyougowrong

Revisionhave/has+been+doneThebridgehasbeenbuiltfortwoyears.

thepassivevoicewithmodalverbs

mustthrowshouldcookRubbish____________________________intothebin.Food_________________beforeeating.mustbethrownshouldbecooked

TheclassroomshouldbecleanedTheexitmaybestuckmaystick(粘贴)________________________onthesidedoor.________________________everyday.shouldclean

RULE1Weuse‘____________________’+pastparticipletoformthepassivevoicewithmodalverbs（情态动词）.modalverbs+be

Passivevoicewithmodalverbs(can,may,mustandshould)SubjectModalverbPastparticipleICan(may,must,should)behelped.You/We/TheyCan(may,must,should)beHe/She/ItCan(may,must,should)bee.g.Theworkcanbefinishedinanhour.

含有情态动词的被动语态结构为：肯定式：主语+can/may/must/should/+be＋动词过去分词否定式：主语+can/may/must/should+not+be+动词过去分词一般疑问句结构：Can/May/Must/Should+主语+be+动词过去分词?

thepassivevoiceinthepresentperfecttense

树木已经被砍伐了（cutdown)___________________________河水已经被污染了（pollute)___________________________Treeshavebeencutdown.Waterintheriverhasbeenpolluted.

米饭已经做好了.________________________________Z```xx···k画已经画好了.____________________________________Ricehasbeencookedalready.Thepicturehasbeendrawnalready.

现在完成时被动语态肯定句主语+has/havebeen+V.P.P.+...(V.P.P.=动词的过去分词形式)Hermotorbikehasbeenstolen.她的摩托车被盗了。现在完成时被动语态否定句主语+has/have+not+been+V.P.P.+...Thetaskhasnotbeenfinishedyet.任务尚未完成。RULE2

RULE2现在完成时被动语态一般疑问句[句型1]Hashe(she,it,单数名词)+been+V.P.P.+...?[句型2]Havewe(you,they,复数名词）+been+V.P.P.+….?Hasa