高中英語語法第一講情態(tài)動詞正確使用英語的兩種思維1.1表示對現(xiàn)在的推測MightbeMaybeCouldbeMustbe（hastobe)注意：Must不能用在否定推測中，而can不能用在肯定推測中強(qiáng)化練習(xí)：There’snolighton–

they_____beathome.(2008全國高考題）can’tB.mustn’tC.needn’tD.shouldn’t2.Isjackondutytoday?--it____behim.it’shisturntomorrow.mustn’tB.won’tC.can’tD.neend’t3.–it’stheoffice!Soyou____knoweatingisnotallowedhere.--oh,sorry.(2009湖南）A.mustB.willC.mayD.need這里是教室，所以你肯定知道睡覺是不允許的！其他可以表示對現(xiàn)在的推測的詞Ringhishomenumber.Hewillbeathomenow.Don’taskTom;hewon’tknow.Someoneisknockingatthedoor.It’llbethepostmen.Thisshouldbeyourmotherthen.Shouldhave的用法當(dāng)時真應(yīng)該把你給扔了，淘氣鬼I

shouldhavethrownyouout!Youlittleelf!餓錯咧，餓真的錯咧，餓從一開始就不應(yīng)該嫁過來，如果餓不嫁過來餓的夫君就不會死，如果餓的夫君不死，餓就不會淪落到這么一個傷心的地方，如果餓不淪落到這么一個傷心的地方……3.it_____havebeenTomthatparkedthecarhere,asheistheonlyonewithacar.(2009上海）A.mayB.canC.mustD.shouldShould的特殊意義Should表示說話人的一種合理假設(shè)，因此他是用來對說話人所希望的事進(jìn)行推斷的；could則是表示說話人不太希望看到的一種結(jié)果Bush:ThewarinIraq______belongerandmoredifficultthanwepredict.couldlet’sgowatchTransformerTwo.it____bereallygood.should1.4對現(xiàn)在進(jìn)行的推測mightbemaybecouldbeshouldbemustbehemightbegivingbirthtoababyhemaybemakingwaterjustnowhecouldbedatinghisboyfriendheshouldbepreparingforhisclasshemustbewatchingTVhecan’tbeinAmericacan的問題表推測只能用在否定當(dāng)中嗎？你看上去命犯桃花，可能會有很有女人緣人到中年有時可能會發(fā)胖Peoplecanbecomefatintheirmiddleages.Youlooklikealadiesman.youcouldbesurroundedby

hundredsofladies.can表肯定推測時是一種理論上潛在的可能性，因此常常翻譯為“有時”、“常?！眂an’t表否定推測，是一種實際、現(xiàn)實的可能性。hecanhardlyberight.hecan’tberight.強(qiáng)化練習(xí)Someaspectsofapilot’sjob_____beboring,andpilotsoften____workatinconvenienthours.can;havetoB.may;canC.haveto;mayD.oughtto;must2.ItisusuallywarminmyhometowninMarch,butit____berathercoldsometimes.(2008福建）A.mustB.canC.shouldD.would2.1現(xiàn)在的能力IbelieveIcanfly!心有多大，舞臺就有多大！強(qiáng)化練習(xí)ifitwerenotforthefactthatshe____sing,I

wouldinvitehertotheparty.(2006福建）couldn’tB.sholdn’tC.can’tD.mightnotwillbeableto2.3表示將來的能力IampracticingJudonow,inamonth,nobodywillbeabletotakeadvantageofme.

強(qiáng)化練習(xí)wehopethatasmanypeopleaspossible___joinusforthepicnictomorrow.(2006全國）A.needB.mustC.shouldD.can3.1表示建議許可3.1.1給與許可canI;mayI;couldI;Child:CanIleavethetablenow?Parent:I’msureyoucan,butyoumaynot.3.1.2拒絕許可maynot,cannot,benotallowedtodo,mustnot3.1.3表示建議couldshallI;wemay(just)aswell,might(just)aswellwemightaswellbefriendsYoumightaswelltellthetruth3.3表示忠告should;oughtto;could;hadbetterIfeelthatIneedmoreeducationA:youshouldtakethepostgraduateexamination,andyou’dbetterstudyharder.B:youcouldtakethepostgraduateexamination,oryoucouldtakeTOEFLandgoabroad.4.特殊情況4.1should的特殊用法4.1.1should表示竟然It’soddthatyoushouldhaveclassduringNationalHolidays!It’soddthatsheshouldhavesothinwaist!4.1.2should表示萬一Itiemyselftothebusseatincaseitshouldhaveanaccident4.2shall的用法：常用于二三人稱中表示“命令”/說話人的許諾/說話人的強(qiáng)烈愿望。Youshallbehereby10o’clock.Heshallbemine.Iswearbygodthissacredoath:ThatIshallrenderunconditionalobediencetoAdolfHitler.FuhreroftheGermanReichandpeopleSupremecommanderoftheArmedforces.AndthatIshallatalltimesbeready,asabravesoldiertogivemylifeforthisoath.世界上最**的口訣麥美苦看馬尾小梳can表肯定很特殊can表否定must退出shouldhave有責(zé)備“小叔妹”特殊意義要記住oryoumayaswell…4.3may的特殊用法:用法一：退一步，再說理Youmaybeolderthanme,butthatdoesn’tmeanyouaresmarter.我可能錯了，但是你也用不著大喊大叫啊。Imaybewrong,butthereisnoneedforyoutoshoutatme..游戲：句子接龍你也許比我聰明，但并不意味著你比我有錢你也許比我有錢，但并不意味這你比我幸福你也許比我幸福，但這并不意味著你的女朋友比我的漂亮你的女朋友也許比我的漂亮，但這并不意味著你比我漂亮你也許比我漂亮，但這并不意味著你比我受歡迎。may的特殊用法二：maywellShemaywellbeproudofherself.Youmaywellrefusetoanswerthat>強(qiáng)化練習(xí)Liza_____wellnotwanttogoonthetrip