Unit7◆知新◆本单元我们主要了解含有情态动词的被动语态。它的结构是什么呢？观察下面例句中含情态动词被动语态的各种形式，然后补全结论中所缺的内容。【例句】1.Manytreesshouldbeplantedinthemountains.应该在山上种许多树。2.Youcantakethisbookhome.（改为被动语态）→Thisbookcanbetakenhome(byyou).3.Thisproblemcan’tbeworkedoutveryeasily.这道题轻易算不出来。4.Musttheworkbedoneatonce?这项工作必须立即完成吗？【结论】A.含有情态动词的被动语态的结构为：情态动词+___+及物动词的________。B.含有情态动词的主动语态变为被动语态时，要把主动语态的_____变成被动语态的主语。C.变为否定句时只需要在情态动词后加_____。D.变为一般疑问句时只需把________提到句首。【运用】Ⅰ.选择最佳答案。()Youngtreesshould________everyyear.A.beplantedB.plantedC.plantⅡ.按要求完成下列各句，每空一词（含缩写）。1.Wemustdotheworkrightnow.（改为被动语态）__________________rightnow.2.Teenagersshouldbeallowedtogooutwiththeirfriendsonschoolnights.（改为否定句）Teenagers__________________togooutwiththeirfriendsonschoolnights.3.Abookshouldbereadeachmonth.(改为一般疑问句)__________________eachmonth?HomeworkFastreading:MomKnowsBeststaybymysidemakesurekeepsbfrom…givemeahugliftmeuptalkbackawfuldreamsregretdoingFirst,lookatthetitleofthepassage.Answer"yes"or"no".Findouthowmanyinyourgroupagreewithyou.Thenreadthepassage.Doesyouranswerchange?Readthepassageagainandanswerthequestions.Readthepassageagainandanswerthequestions.3.WhydoLiuYu’sparentsnotallowLiuYutopracticehishobbyatnight?4.DoyouthinkLiuYushouldbeallowedtopracticehishobbyasmuchashewants?Whyorwhynot?6.OnlythenwillIhaveachancetoachievemydream.这是一个倒装句，正常语序是Iwillhaveachancetoachievemydreamonlythen.但由于与前文的连贯性及强调的需要，onlythen被置于句首。英文的句子大多主语在前，谓语在后。但在一些句子中，由于修辞或句子结构上的需要，谓语被部分或完全置于主语之前，构成“倒装语序”。only用于句子的开头，后接副词、介词短语或状语从句时，句子应倒装。例如：Onlyyesterdaydidhefindoutthathiswatchwaslost.直到昨天他才发现他的手表丢了。OnlyafterayeardidIbegintoseetheresultsofmywork.直到一年后，我才开始看到我工作的成果。Writeadiaryentryexplainingwhichrule(s)youdonotagreewithathomeandhowyouthinktherule(s)shouldbechanged.Usethefollowingexpressionstohelpyou:Idonotagreewith…IthinkIshouldbeallowedto…Iwouldliketo…Icould…ifI…Monday,November24th,2014Therearemanyrulesinmyfamily.First,Iamnotallowedtoplaycomputergames.Iagreewithit.Becauseit’snotgoodforteenagers’health.Sec