中考英语专项练习 情态动词的用法(全)

中考英语专项练习情态动词的用法•名校内部资料can,could.表达〃能力〃。.表示〃许可〃。.有礼帽地提出〃请求〃。（用于疑问句）.谈论〃可能性〃。.当主语为事物时可以表示〃惊异〃。Wecanusethecomputernow,butwecouldn'ttwomonthago.Youcangonow.Couldyoubehereateighto'clocktomorrowmorning?Hecan'tbethemanager,forIsawhimgotoCanadayesterday.Whatonearthcanthismean?在表达〃能力〃时,可用beableto来取代cano要注意的是：可在beableto前加肋动词或情态动词以表达更多的时态或情态，can或could前则不可。Nooneisabletodoit.(二Noonecandoit.)Weshallbeabletofinishtheworknextweek.Ihaven'tbeenabletofindanyjobs.maymight.表示"允许".请求“许可"(用于疑问句).谈论〃可能性〃Youmaygohomenow.HesaidthatImightdrinksomebeer.MayIwatchTVthisevening?--MayIuseyoupen?--Yes,youmay.Hemay/mightcometomorrow.must.表达〃义务〃、〃责任"O.进行“肯定的推断〃。.其否定式mustn't表示"（说话人）禁止……，不准......"；用来代替maynot表示“不许可"。Everybodymustobeytherules.Imustgonow.Thisworkmustbefinishedassoonaspossible.TheChineselanguagemusthavethelargestnumberofspeakers.Youmustn'tlendthebooktoothers.在表示“客观需要"时，用haveto而不用musto另外可在haveto前加肋动词或情态动词以构成更多的形式。must前则不可。Youdon'thavetoworryaboutthat.Hehadtospendhischildhoodinhardwork,helpinghisfatherontheirsmallfarm.Thestudentsoftodaywillhavetohowtousethecomputers.shallshould.表示“必要性"。.征求"意见"或〃看法"，请求指示。.主语为二、三人称时，表达说话人强烈的意志和决心，有威胁或震慑听话人的作用。Weshouldbestrictinallourwork.WhereshallIwaitforyou?Shallwestartthemeetingnow?Tellhimthatheshallhavethebooktomorrow.YoushalldoasIsay.Youngpeopleshouldlearnhowtousecomputers.在表示“必要性"时，可用oughtot来代替shall,语气更正式一些。willwould1.表示〃必然性〃。2.表达"意愿”或//,3±z.-|—//

后、心、3.询问对方的意愿或提出请求。（用于疑问句）Fishwilldieoutofwater.Everydayshewouldgetupat6:00andlightthefire.IwilltellyouallaboutitWellhelphimifheasksusto.Iwon'tgohomenow.Ipromisedt