Module 12 语法 情态动词表推测

情态动词,情态动词表示猜测在情态动词家族中，有些成员可以表示“猜测”，看下面的例句，注意黑体加下划线的词，然后用can,may,might,must,cant,maynot或mightnot补全“结论”中所缺内容。,1.WhereisTom?Imnotsure.ButIthinkhemaybeathome.2.ThemanagertoldmeImighthaveadayoff.3.Shemightnotcometomorrow.4.Canthisbesure?5.Thelightison.Hemustbeathome.6.Thedoorislocked.Hecantbeathome.,由以上例句可以看出：1.表示肯定推测的情态动词有：_(一定；准是），_（也许；可能；或许）。,2.表示否定推测的情态动词有：_（不可能），_，（也许不；或许不）。3._表示推测时一般不用于肯定句，_，_和_表示推测时一般不用于疑问句。4._与_两者表可能性都较小，此时无时态之分，但当主句谓语动词为过去式时，则要用_。,1.Thewatchisntyours.Whose_itbe?2.YoudbettergoandaskMissLiu.She_knowhowtosearchtheInternet.3.Jim_beathomebecausehephonedmefromtheparkjustnow.4.MissLisaidshe_comelate.5.IsawLilyonmywayherejustnow.It_beher.Shehasjustbeenabroadfortwodays.,1.can可以表示对现在或将来的推测，意为“会，可能”。通常用于肯定句和疑问句。用于否定句时，cant表示“不可能”；用于否定句时，can比could表示的“可能性”更大。例如：1.Whosentthepresent?Canitbeyourbrother?2.Itcantbemybrother.HeisstillinFrance.,情态动词表示推测,Hecouldbeinpain.,Youmustcometoschoolontime.Youmustntswimhere.Thewaterissodeep.,Theymustbegoodfriends!Theyoftengotoschooltogether.,must意思是“必须”,mustnt表示禁止，不准,must表示猜测，意思是“一定，肯定”,情态动词表推测,Sheverytired,shefellasleepwhileshewasdoinghomework.,mustbe,Exercises,1.FiftydollarsforsuchaT-shirt!You_bejoking!Imserious.Itsmadeofsilk.A.mustB.needC.mayD.can,A,2.情态动词can的用法,（2）can表示能力，意思是“会，能够”,同义词是beableto,Hecandriveacarwhenhewas18.ShecanbeathomeatthemomentThiscantbetrue.这不可能是真的。,（3）can表示猜测，意思是“可能”，canntbe不可能,.,中考链接,1.Isthatyourteacher?That_beMr.Wang.HehasgonetoJapanwithhiswife.A.cantB.mustntC.maynot,A,3.IsthatgirlunderthetreeMary?No,that_beMary.SheisinNewYork.A.canB.mustntC.cant,C,4.IsMariaknockingatthedoor?It_beher.SheisinAustralianow.A.maynotB.needntC.mustntD.cant,D,5.You_behappywiththestrongpublicsupportyouvereceived.Yes,youreright.Imreallyexcited.A.mayB.canC.mustD.need6.Thatman_bemyEnglishteacher.HehasgonetoCanada.A.needntB.mustntC.cant,C,C,中考链接,1.Mybrotherwonthefirstprizeinspeechcompetition.Congratulations!You_beexcitedaboutthat!A.needB.mustC.wouldD.can2.Theladyinthisphoto_beoverfifty!Shelookssoyoung!mustntB.mustC.cantD.can,B,C,3.ThistoyMickeyMouse_beAmys.Shestheonlykidatthepicnic.A.mustB.canC.needD.cant,A,4.You_beexcitedthatyouregoingbacktoyourhometownsoon.Yes,Icantwaitanylonger.A.shallB.canC.needD.must,D,中考链接,1.Whoisthemanoverthere?IsitMrLi?No,it_behim.MrLiismuchtaller.A.mustntB.maynotC.cantD.neednt,C,2.Haveyoudecidedwheretogoforyoursummervacation?Notyet.We_gotoQingdao.Itisagoodplaceforvacation.A.mayB.shouldC.needD.must,A,3._Iborrowyourhistorybook?Sure.Hereyouare.A.MustB.MayC.NeedD.Will,B,中考链接,1.You_betiredafterworkingforeighthourswithoutarest.A.canB.mayC.mustD.need2.You_doitifyoureallydontwantto.A.needntB.mustntC.cantD.couldnt,A,C,中考链接,1.Susansparentshaveboughtalargehousewitha