含有情态动词的主动句变被动句

举最简单的例子(1)Youare(be)astudent.否Youarenotastudent.问Areyouastudent?(2)Youcandoit.否Youcannotdoit.问Canyou

1.webuiltthebuildingsoneyearago.thebuildingswasbuiltoneyearago.2.howtomakebread?howisbreadmade?3canI

被动语态的构成：be+P.P.(done)①一般现在时的被动语态：am∕is∕are+P.P.TheclassroomiscleanedbythestudentseveryFriday.②一般过去时的

常见的情态动词包括：must;may;can;needmay:否定:No,youmaynot疑问：MayI.need：否定:No,youneedn't.疑问：MustI.（或者NeedI.）must否

英语八大时态：一般现在时eg.1.ShesingswiththebandCrazyBoy.2.Idon'tthinkyouareright.一般过去时eg.1.Suddenly,thecloudscl

答案如下：1Anewcomputerwillbeboughtbyhernextweek.2Thehillstationwillbevisitedbyusthisyear.3Willanewworker

主动改被动的一半规则就是：把动词后面的宾语变为被动语态的主语,动词要改为被动形式,原句子的主语有时可以省略,如不省略则在原主语前面加个by,也就是宾语＋被动形式动词＋by＋主语,这样说能明白吗?

Hewasseensittingtherewithoutdoinganythingsitting做伴随状语,不需要改变.如果是sawhimsitthere,就要改成你上边的句子了,因为被动语态,省略的

1.如果感官动词后的是V-ing作为宾语补足语,变被动时不需要加to.如果感官动词后的是V-pp作为宾语补足语,变被动时也不需要加to.只有当感官动词后的是不带to的不定式（即所谓的动词原形）作为宾语

thepolicemanwasaskedforhelpbythewoman.astoryistoldbytheoldmanonTVonSunday.istheboxusedasatablebythem

8.Anewnovelwillbewrittenbythewriternextyear.9.AspeechwillbegivebyMr.Liuatthehallthisafternoon.10.You

解题思路：你可以把答案通过讨论发过来解题过程：一、主动语态和被动语态概说　　英语的语态分主动语态和被动语态，主动语态表示主语是动作的执行者，而被动语态则表示主语是动作的承受者。被动语态由“

ThesongisoftensungbythestudentsinEnglish.Lastweekaletterwassenttomebyher.Limingwasseentosweepthefloo

Thiscarwasboughtbymyuncle.Threenovelshavebeenwrittenbyhim.Thesesongswillbesungbythemtomorrow.Thehous

MymeaningisunderstoodbyhimHIshatisremovedbythepolicemanStudensmaybetroubledbythelivingproblem

thelittleboyislaughedatbythem.

解题思路：含有情态动词的被动语态解题过程：wemustpianttreesinspring.-------Treesmustbeplantedinspringbyus.含有情态动词的被动语态,其结构为

Iwastoldthathedidit.被动式.别人告诉我.告诉的动作不是我做的.Itoldsomeonethathedidit.主动式.我告诉某人,动作是我做的.主动：直接用动词被动：be+动词过去

1.ItdescribespeopleinsmalltownsofAmericaseethestrangers.2.Thewaytopunishthepeopleforbadbehaviour3.pe

hi,boy.canyoubemygirlfiriend?