英语单项知识的讲解与练习(55)

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1、英语单项知识的讲解与练习（55）271>preventhimgoing(1)、preventhimgoing/preventhisgoing/preventhimfromgoing阻止他去；preventfrom防止；keep・..fromdoingsomething阻止……做某事，同义词组有:stop/prevent...fromdoingsomething,后两者中的from可省,前者中的from不可省,keepsomebodydoingsomething意为"使某人一直做某事"。(2)、在被动语态屮，三者屮的from都不可省，若这三个动词的宾语与fpm后

2、的动作成被动关系，from后的动名词要用被动式,prevent后不接不定式。练习：①Ifcitynoisesfromincreasing,peopleshouttobeheardevenatthedinnertable20yearsfromnow.A.arenotkept;willhavetoB.arenotkept;havetoC.donotkeep;willhavetoD.donotkeep;haveto(DSomethingmustbedonetokeeptheforestfromtoomuch・A.cutoffB.cuttingoffC.beingcu

3、toffD・havingcutoff③I'mreallysorrytohaveyouformesolongatimeoutside・A.kept;waitingB.kept;fromwaitingC.stopped;waitingD.kept;towait③Johnwassosleepythathecouldhardlykeephiseyes・③Theysaidnobodycanthemgettingmarried.A.keepB.holdC.protectD.prevent272>thepurposeofdoingsomething(1)>yourpurpo

4、seofdoingsomething做某事的目的;with(暗示能实现)/forthepurposeof怀着/为着……的目的;dosomethingonpurpose故意做某事；(2)、purpose作动词，意为"决意做、打算做〃，后接不定式、动名词或that从句。女口：Wepurposemaking/tomakeanothertrial我们打算再试一下;Wepurposethatsuchathingshallnotoccuragain我们想这样的事决不会再发生；练习：©Look,thetelephoneisbroken.Someonedamageditpur

5、pose・Thatmayberight・Butperhapsitwasbrokenaccident.A.on;byB.by;byC・on;onD.by;on①Theypulleddowntheoldbuildingsfortheofmakingroomforthenewly-builtmotorway.A.purposeB.meaningC.faceD.use②Ithappened-whetherbyaccidentorthatthetwoofthemwereleftaloneafteralltheothershadgone.A.planB.designC.p

6、urposeD.control(4)whatpurposedidyourcommitteeinvitemetocomehere?A.OnB.ForC.WithD.By273>betooreadytodosomething(1)、have/getsomethingready将某事物准备好，have意为"使某事物处于某种状态〃。(2)>readywith表示准备好所说的话，一般后接excuse(随时者有白勺借口)，answer,reply,explanation,suggestion等。(3)、tooreadytodosomething中的不定式修饰ready,而

7、不修饰tooo女口：tooreadytopromise易许诺；(4)、betooreadytodosomething很愿意做某事；areadyanswer当场立即回答;bealwaysreadytodo/forsomething乐于做某事;benot/neverreadytodo/forsomething不轻易或不打算做某事；(5)、getreadyfor为……作准备，后接名词。如:Theyaregettingreadyforasportsmeeting.(6)、getreadytodosomething为做某事做准备，前二者都强调准备就绪,并预示未来的行动。

8、如:Heisgettingreadyt