初中英语人教新目标九年级全册Unit 7含有情态动词的被动语态知识讲解练习

九年级英语Unit7情态动词被动语态知识讲解练习一、含有情态动词的被动语态1.含有情态动词的被动语态的结构情态动词(should/can/must/may/could等)+be+及物动词的过去分词eg:Teengers shouldbealloweded togooutwith friends.青少年应该允许和朋友们外出。Manyplants canbeplanted indoors.许多植物能种在室内。2.含有情态动词的被动语态的基本句式①肯定句式：主语+情态动词+be+及物动词的过去分词+其他Children shouldbeallowed togotothemovieswithfriendsonweekends.孩子们应当被允许周末和朋友们一起去看电影。②否定句式：主语+情态动词+not+be+及物动词的过去分词+其他eg:Wastepaper shouldnotbethrown here.废纸不应该被扔在这里。3.一般疑问句式：情态动词+主语+be+及物动词的过去分词+其他？eg: Should itbedonebyLiMing?这件事应该由李明做吗？Yes,it shoulD.,it shouldn't.是的，应该。/不，不应该。4.含有情态动词的主动句与被动句之间的转换含有情态动词的主动句变为被动句时，要把主动句中的宾语变为被动句中的主语；主动句中的谓语变为“情态动词+be+及物动词的过去分词；主动句中的主语变为介词by的宾语（如果不强调动作的执行者，by短语常可省略)。主动句：She mustclean herroom everyday.       主语    谓语    宾语被动句：Herroom mustbecleaned (by her) everyday.          主语    谓语            宾语她必须每天打扫她的房间。二、被动语态结构小结各种时态的被动语态形式归纳（以动词give为例)：一般现在时am/is/are+done现在进行时am/is/are+beingdone现在完成时have/has+beendone一般过去时was/were+done过去进行时was/were+beingdone3,过去完成时had+beendone一般将来时will/shall+bedone含有情态动词can/must /shoulD...+bedone一、按要求完成句子，每空一词。1.Nobodycananswerthequestion.(同义句改写）Thequestion____________answeredbyanybody.2.Weshouldcleanourteethtwiceaday.(改为被动语态）Ourteethshould ____________ twiceaday.3.Theyshouldbeallowedtotakepartinafter-schoolactivities.(变一般疑问句并作否定回答） ______ they______ _______ totakepartinafterschoolactivities?No，they_________.4.Youcan’tlendthemagazinetoothers.(改为被动语态）Thebook___________ ______ toothers.5.Thelightsshouldbeturnedoffbeforeyouleavetheclassroom.(改为主动语态）You______ ______offthelightsbeforeyouleavetheclassroom.二、单项选择（  )1.Weshould___________ junkfoodtokeephealthy.A.lookforwardto  B.get alongwith C.keep awayfrom  D.makefriendswith(  )2.Teenagers__________ allowedtosmoke.A.shouldnotbe B.shouldbenot  C.notshouldbe D.notbeshould(  )3.Hewasnot _____________, sohefailedtheexam.A.carefullyenough B.carefulenough C.enoughcarefully D.enoughcareful(  )4.Thepeoplewhoaremoreconfidenthavemore___________ tomakethemselvessuccessful.A.education B.excuses C.chances D.pride(  )5.-Tomisalwayscarelesswithhisschoolwork.Couldyouhelphim?-Noproblem!Ithinkhe___________ to thinktwicebeforestartingA.shouldbetold  B.shouldn'tbetoldC.shouldtell  D.shouldtold(  )6.Thedictionarymay__________ forthree weeks.3,A.keep  B.bekeptC.borrow   D.beborrowed(  )7.-What'sthemeaningoftheactivity"Let'ssave"?-Papershouldn't________________ inoureverydaylife.A.waste   B.wastedC.bewasted   D.iswasted( )8.ThankstotheInternet,differentkindsof information__________ inashorttime.A.canbelearned  B.canbeenlearnedC.canlearn     D.canlearned( )9.Thevillagersexpectthatthebuildingofthe bridge_________ beforetherainyseason comes.A.iscompleted   B.wascompletedC.willbecompleted   D.hasbeencompleted【答案】一、 1.can’t   be2.Should         be  allowed3.Should         be  allowed    shouldn’t4.can’t  be  lent5.should    turn二、CABCA   BCAC3