資源描述:
《情態(tài)動(dòng)詞只有情態(tài)意義.doc》由會(huì)員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫。
1、情態(tài)動(dòng)詞只有情態(tài)意義,即它所表示的是說話人對(duì)動(dòng)作的觀點(diǎn),如需要、可能、意愿或懷疑等?! ∏閼B(tài)動(dòng)詞的特征: 1.在形式上,情態(tài)動(dòng)詞沒有實(shí)義動(dòng)詞的各種變化?! ?.在意義上,大多數(shù)情態(tài)動(dòng)詞有多個(gè)意義?! ?.在用法上,情態(tài)動(dòng)詞與助動(dòng)詞一樣,須后接動(dòng)詞原形?! ∏閼B(tài)動(dòng)詞各自的基本意義及用法 一、can與could用法對(duì)比表 對(duì)比點(diǎn)cancould 1、表“能力”Canyouliftthisheavybox?Icouldn’tunderstandwhathesaidatall. 2、表“許可”Youcanuseadi
2、fferentmaterialinstead.HesaidIcouldborrowhisbike. 3、“懷疑”No,no,itcan’tbetrue. Whatonearthcanthismean?Wethoughtthestorycouldnotbetrue.Howcouldyoubesocareless? 4、can與beableto區(qū)別1.could代替can,表示語氣更為婉轉(zhuǎn)?! g.CouldIuseyourbike?Yes,?youcan. 2.can(能夠)=beableto(僅表能力時(shí)),但
3、beableto表示一番努力后,才能做得到,且有更多的時(shí)態(tài)?! ewasagoodswimmer,sohe__________swimtotheriverbankwhentheboatsank. A.couldB.mightC.shallD.wasableto? 二、may與might用法對(duì)比表 對(duì)比點(diǎn)mayMight 1.表“詢問”MayI…?(=CanI…?)MightI…?(=CouldI…?)(但比用may更客氣)7 2.表“允許”Youmaytaketheboythere.Hetoldmehemi
4、ghtcome.(might與told相呼應(yīng)) 3.表“可能”“或許”Shemaynorlikethisplace.I’mafraidhemightnotlikethisplay. 注:1.MayI…?的答語。 2.may可表示期望或祝愿 Mayyousucceed! 3.may(might)用于目的狀語從句中肯定:Yes,youmay. 否定:No,youmustn’t不行(語氣強(qiáng)硬) No,youmaynot或No,you’dbetternot. Theemperorgavethemsomegold
5、inorderthattheymightbegintheirworkatonce.? 三、must與haveto的用法對(duì)比表 對(duì)比點(diǎn)musthaveto 1.表“必須”(主觀看法)必須;沒有過去式,可用于間接引語中。HetoldmeImustdoaccordingtowhathesaid.(客觀需要)不得不,有多種時(shí)態(tài)。It’srainingheavily,wecan’tgonow. 2.疑問句MustI…? Yes,youmust.(一定) No,youneedn’t./youdon’thaveto.(不
6、必)Doyouhavetogotoday? Yes,wedo. 否定句:Youdon’thavetoworryaboutthat.? 四、need與dare的用法對(duì)比表 對(duì)比點(diǎn)needdare 1.情態(tài)動(dòng)詞+動(dòng)詞原形 1)否定式 2)疑問式Heneednot(needn’t)go. ----Needwedoitagain? ---No,youneedn’tdoitagain.Hedarenotsayso.7 Dareshegooutaloneatnight? HowdareyousayI’munf
7、air? Ifhedaredothat,he’llbepunished.(條件句) Idaresay.(固定用法) 2.行為動(dòng)詞+帶to不定式 1)肯定式 2)否定式 3)疑問式Heneedstogo. Hedoesn’t(doesnot)needtogo. Doesheneedtodoitagain? No,hedoesn’tneedotdoitagain.Hedarestosay. Hedoesnot(doesn’t)daretosay. Ifyoudaretojumpintothewater
8、fromhere,sodareI. 3.didnotneedtodo 表示過去沒有必要做Shedidn’tneedtoattendthemeetingyesterday,andshestayedwithherchildren.(她沒有參加)? 五、should與oughtto用法對(duì)比表 對(duì)比點(diǎn)shouldoughtto