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1、小學(xué)英語動(dòng)詞動(dòng)詞的構(gòu)成助動(dòng)詞情態(tài)動(dòng)詞系動(dòng)詞實(shí)義動(dòng)詞助動(dòng)詞PART1助動(dòng)詞助動(dòng)詞的幾種形式do/don’tdoes/doesn’tdid/didn’twill/won’thave,haven’t/has,hasn’t/hadhadn’tshallshould/shan’tshouldn’t助動(dòng)詞的用法Doyougetupearlyeveryday?Ididn’t(沒)havelunchyesterday.Willyoubebacksoon?Hehasn’t(沒)finishedtheworkyet.情態(tài)動(dòng)詞PART
2、2情態(tài)動(dòng)詞共同特點(diǎn)情態(tài)動(dòng)詞后面跟動(dòng)詞原型無論否定、疑問都用情態(tài)動(dòng)詞只有時(shí)態(tài)變化,無人稱變化情態(tài)動(dòng)詞can/could1.在表示有能力作某事時(shí),could是can的過去式。Icanswim.Icouldswimattheageoffive.2.在表示請求允許的時(shí)候兩者和互換,could比can語氣更委婉。CanIhelpyou?Couldyouopenthewindow?情態(tài)動(dòng)詞must/havetoMust表示主觀意愿,否定句用Mustn’t,否定回答用needn’tImustgonow.Youmustn’tpl
3、ayinthestreet.MustIcleantheroomnow?No,youneedn’t.haveto表示客觀條件的限制的“不得不”,它有時(shí)態(tài)和人稱變化,需要助動(dòng)詞來否定和疑問。Idon’thavetocarrythebigbox.Hehadtowashhisclothes.情態(tài)動(dòng)詞May表示請求別人允許。MayIuseyourbike?表示可能性。Hemaybeateacher.Hemayliveinthisbuilding.系動(dòng)詞PART3系動(dòng)詞be動(dòng)詞的幾種形式amisarewaswerebeing
4、beenbe動(dòng)詞的幾種形式第一人稱第二人稱第三人稱單數(shù)復(fù)數(shù)be動(dòng)詞的用法與名詞、數(shù)詞、形容詞、介詞連用Iamadoctor.Heisten.Theyaretired.Thecatisunderthetable.Thereisapenonthedesk.系動(dòng)詞其他系動(dòng)詞變成類get,turn,become,make感觀動(dòng)詞look,sound,smell,taste,feel似乎類seemappear保持類staykeep以上系動(dòng)詞只和形容詞連用,構(gòu)成系表結(jié)構(gòu)Ifeelhungry.Thedaygetslonger
5、andlonger.Helookedhappy.實(shí)義動(dòng)詞PART4實(shí)義動(dòng)詞實(shí)義動(dòng)詞指的是有具體行為意思的動(dòng)詞。實(shí)義動(dòng)詞在句中可以做謂語動(dòng)詞和非謂語動(dòng)詞。實(shí)義動(dòng)詞3.做謂語動(dòng)詞的用法四種形式:單三,現(xiàn)在分詞,過去式,過去分詞注意:掌握四種形式的變化規(guī)律Heworksintheoffice.Wearedancingtogether.Icaughtacoldlastweek.Shehaswateredtheflower.實(shí)義動(dòng)詞做非謂語動(dòng)詞的用法(指出現(xiàn)在謂語動(dòng)詞之后的動(dòng)詞,它受前面謂語動(dòng)詞的限制)非謂語動(dòng)詞會(huì)有三種形
6、式:原型(do)動(dòng)名詞(doing)不定式(todo)實(shí)義動(dòng)詞用原型:letsb.domakesb.dohelpsb.(to)dohadbetterdo實(shí)義動(dòng)詞用動(dòng)名詞:likedoingenjoydoingfinishdoing介詞之后用動(dòng)名詞begoodatdoingwhataboutdoingthankyoufordoing實(shí)義動(dòng)詞用不定式:wanttododecidetodoplantodowouldliketodotellsb.(not)todoasksb.(not)todoThankyou此課件下載可
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