情態(tài)動(dòng)詞（-）情態(tài)動(dòng)詞的概念：情態(tài)動(dòng)詞表示說話人對某一動(dòng)作或狀態(tài)的態(tài)度。（二）情態(tài)動(dòng)詞的特點(diǎn).情態(tài)動(dòng)詞有必然的詞義。2.情態(tài)動(dòng)詞不能單獨(dú)做謂語，它必需和其他動(dòng)詞的原形一路組成謂語。3.情態(tài)動(dòng)詞沒有人稱，數(shù)的轉(zhuǎn)變。（三）情態(tài)動(dòng)詞的結(jié)構(gòu)和意義L情態(tài)動(dòng)詞的大體句型確信句：主語+情態(tài)動(dòng)詞+動(dòng)詞原形+……否定句：主語+情態(tài)動(dòng)詞+not+動(dòng)詞原形+……疑問句：情態(tài)動(dòng)詞+主語+動(dòng)詞原形+…….情態(tài)動(dòng)詞的意義must“必需"；can/could“能，會(huì)”；may/might“能夠”；should"應(yīng)該”;would“愿，要"；haveto“不能不"；need“需要”（四）情態(tài)動(dòng)詞的大體用法l.can（could要緊指過去時(shí)刻）1）表示人或物本身所具有的能力，意為“能，能夠，會(huì)”：Twoeyescanseemorethanone./Icanswimverywell.2）表示可能（理論上或是邏輯判定上）Hecan't（couldn't）haveenoughmoneyforanewcar.3）表示許諾：CanIhavealookatyournewpen?Heaskedwhetherhecouldtakethebookoutofthereading-room.4）表示對此刻動(dòng)作或狀態(tài)的猜想，要緊用于否定句和疑問句中或感嘆句中：Hecan't（couldn't）beoversixty.他不可能超過六十歲。5）could表示比can更委婉客氣的提出問題或陳述觀點(diǎn)，指的是此刻時(shí)刻。Can（Could）youlendmeahand?幫我一把好嗎？may（might）1）表許諾，詢問或說明一件事可不能夠做，might指過去時(shí)刻；但在疑問句中might也可指此刻時(shí)刻，語氣比may更委婉。May（Might）Iaskforaphotoofyourbaby?我能夠要一張你寶寶的照片嗎？在回答以may引發(fā)的問句時(shí)，確信回答是一樣可仍用may,或Yes,please./Certainly./Sure./Ofcourse.；否定回答依照說話人的語氣由強(qiáng)到弱別離選用：mustnot（mustn't）（禁止）/hadbetterno（最好別）/maynot（不行）may表可能，但所表示的可能性不如can所表示的那樣確信。might能夠指過去時(shí)刻，也能夠指此刻時(shí)刻，但語氣加倍不確信。Hemaybeathome.他可能在家。Theymightbehavingameeting,butI’mnotsure.他們有可能在開會(huì)，不過我不肯定。must（haveto表示客觀需要）1）表示“必需”（主觀觀點(diǎn)）時(shí)，用于確信句或疑問句；用于否定句時(shí)表示“禁止”。Wemustdoeverythingstepbystep.咱們一切都必需循序漸進(jìn)地做。Youmustgethomebefore9：00.2）表示揣測。意為“想必、準(zhǔn)是、必然”等，只用于確信句。Hemustbeill.Helookssopale.他準(zhǔn)是病了。他的臉色蒼白。3）must的疑問句，確信回答用must，否定回答用needn't或don'thaveto。should1）表責(zé)任或義務(wù)，意為“應(yīng)該”，用于各類人稱。Youshouldbepolitetoyourteachers.你對教師應(yīng)該有禮貌。2）表推測，意為“想必必然、照說應(yīng)該、估量”等。Thefilmshouldbeverygoodasitisstarringfirst-classactors.這部新電影是一流演員主演的，估量拍得專門好。5.will1）表意愿，用于各類人稱。Iwilldoanythingforyou.我愿為你做任何事。2）will在疑問句頂用于第二人稱，表示詢問對方的意愿或向?qū)Ψ教岢稣埱骔illyouclosethewindow?請你把窗戶關(guān)上好嗎？6.would1）will的過去式，表示過去時(shí)刻的“意志、意愿”。Theywouldnotlethiminbecausehewaspoorlydressed.他們不讓他進(jìn)去因?yàn)樗┲婆f。IsaidIwoulddoanythingforyou.我說過我情愿為你做任何事。2）would用于此刻時(shí)刻，表示比較委婉地提出請求、建議或觀點(diǎn)。Wouldyoulikeanotherglassofbeer?再來杯啤酒好嗎？7.need1）need作為情態(tài)動(dòng)詞，要緊用于否定句疑問句；作為實(shí)義動(dòng)詞可用于確信句，否定句或疑問句中。Youneedn’ttelephonehimnow.你此刻沒必要打電話給他。2）回答由need引發(fā)的問句時(shí)，確信回答一樣用must，否定回答是用needn't--NeedIcome?--Yes,youmust.--我需要來嗎？--需要。情態(tài)動(dòng)詞練習(xí)題（一）單項(xiàng)選擇" Itakeitout?""I'msorry,you ."A.Could...couldn'tB.Might...mightnotC.Could...canD.May...can"Needwedothisjobnow?""Yes, ."A.youneedB.youshouldC.youmustD.youcan tohavelunchwithustoday?A.DoyoulikesB.WouldyoulikeC.WillyoulikedD.Haveyouliked-IsJohncomingbytrain?--Heshould,buthe not.Helikesdrivinghiscar.A.mustB.canC.needD.mayPeter comewithustonight,butheisn'tverysureyet.A.mustB.canC.mayD.willIthoughtyou behungry,soIhavebroughtyousomecakes.A.mayB.mightC.canD.couldComeon!We hurrybecausethereisn'tmuchtimeleft.A.mayB.mustC.canD.needAmydidbestintheEnglishtest.She hardlastweek.A.mustworkingB.shouldhaveworkedC.shouldworkD.mustwork—Wouldyouliketodrinksomejuice?—Thanks. ,butIhavedrunkalotiftea.A.I’dlovetoB.IthinksoC.I’mafraidnotD.Idon’tthinkso.—MayIsmokehere?—No,you !Look,thereisa“NOSMOKING”signhere.A.mayB.maynotC.needn’tD.mustn’t—Listen!Helenissinginginthenextroom.—It beHelen.ShehasgonetoBeijing.A.can’tB.mustn’tC.mayD.should—Whatdodriversdowhenthetrafficlightsturnred?—They stopandwaittillthegreenlight.A.mustB.canC.mayD.need（二）依照語境用適當(dāng)?shù)那閼B(tài)動(dòng)詞填空：1.“ Ileaveschoolnow?”“No,you cleantheclassroom.”t’stimeforclass.You stopplalyingfootball,oryou belateforschool..“ theyanswerthequeationinRussi