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时间:2020-08-03
《公开课课件--被动语态.ppt》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、被动语态语法专项英语动词有两种语态,主动语态和被动语态。主动语态表示主语是动作的执行者,被动语态表示主语是动作的承受者Theywillbuildanewbridgeovertheriver.(主动)Anewbridgewillbebuiltovertheriver.(被动)汉语中常用“被”、“给”、“由”、“受”等词用来表示被动,而英语用:助动词be+及物动词的过去分词构成。一般现在时:一般过去时:一般将来时:过去将来时:现在进行时:过去进行时:现在完成时:过去完成时:[注]被动语态没有将来进行时和过去将来进行时。am/is/are+do
2、newas/were+doneshall/will+bedoneshould/would+bedoneam/is/are+being+donewas/were+being+donehave/has+been+donehad+been+done(二)各种时态下的被动语态结构:be+过去分词时态变化主要体现在be的变化上,以do为例,列表如下:1.一般现在时SimplePresent人人都喜欢她。她受人人喜欢。Everyonelikesher.She________byeveryone.isliked2.一般过去时Simplepast狗咬了他
3、。他被狗咬了。Adogbithim.He_________byadog.wasbitten河上将建一座桥。如果你违反法律,你就会受到惩罚。Abridge____________overtheriver.Ifyoubreakthelaw,you_____________.willwillbepunishedbebuilt3.一般将来时4.现在完成时BP机(beepers)已经被手机所取代。这件事已经被遗忘了。Beepers_________________bymobilephones.Thismatter_________________.
4、havehasbeenreplacedbeenforgotten5.现在进行时的被动语态1.Astrangerisfollowingthegirl.Thegirl______________byastranger.isbeingfollowed2.Theyarebuildingabridgeovertheriver.Abridge____________overtheriver(bythem).isbeingbuilt6.含情态动词的被动语态1.Parentsshouldallowchildrentochoosetheirclothes.
5、(改为被动语态)Childrentochoosetheirclothes.2.Thebikecan(mend)intwodays.shouldbeallowedbemended被动语态的使用1.当不知道或没有必要指出动作的执行者时,常用被动语态,这时往往不用by短语。“Mr.White,thecupwithmixturewasbrokenafterclass.”(只是告诉老师杯子坏了,不知是谁弄坏的,或不想说出谁弄坏的)。2.突出或强调动作的承受者,如果需要说出动作的执行者,用by短语。TheserecordsweremadebyJohn
6、Denver.ThecupwasbrokenbyPaul.主动语态变被动语态的方法(1)Myauntinvitedmetoherdinnerparty.主语谓语宾语→Iwasinvited(bymyaunt)toherdinnerparty.主语谓语宾语1.把主动语态的宾语变成被动语态的主语。2.把主动语态的谓语变成被动语态的be+过去分词,时态要与原句保持一致。用被动语态改换下列各句:1.Myfatherwillrepairmybikeforme.Mybikewillberepairedbymyfatherforme.2.Ihavefo
7、undmywallet.Mywallethasbeenfound.3.Shetoldmetowaithereforher.Iwastoldtowaithereforher.Theirclassroomisbeingcleanedbythestudentsnow.4.Youmustn’ttakethosebooksoutofthereading-room.Thosebooksmustn’tbetakenoutofthereading-room.5.Thestudentsarecleaningtheirclassroomnow.6.Hegav
8、emeapresent.Iwasgivenapresent.Apresentwasgiventome.7.Motheroftentellsherchildrenastoryatbedtime.
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