小學(xué)be動詞的用法助動詞-do

1、由連系am，is，are構(gòu)成的句子：變一般疑問句時把a(bǔ)m，is，are提到句子的前面，句尾用問號即可。變否定句時直接在am，is，are后面加not即可。例如：肯定句:Heisastudent.一般疑問句:Isheastudent?否定句:Heisnotastudent.反問句:Heisastudent,isnthe?Heisntastudent,ishe?畫線提問:對he提問:Whoisastudent?對astudent提問:Whatishe?orWhatdoeshedo?由情態(tài)動詞can,may,should等構(gòu)成的句子:變一般疑問句時把can,may,提到句子的前面,句尾用問號即可.變

2、否定句時直接在can,may,后面加not即可.例如:肯定句:Shecanswim.一般疑問句:Cansheswim?否定句:Shecannotswim.反問句:Shecanswim,cantshe?Shecannotswim,canshe?畫線提問:對she提問:Whocanswim?對swim提問:Whatcanshedo?由行為動詞構(gòu)成的句子:需要加助詞do或does.變一般疑問句時把do/does放在句子前面.例如:肯定句:Theyplayfootballafterschool.一般疑問句:Dotheyplayfootballafterschool?否定句:Theydont(donot

3、)playfootballafterschool.反問句:Theyplayfootballafterschool,dontthey?Theydontplayfootballafterschool,dothey?畫線提問:對they提問:Whoplayfootballafterschool?對playfootball提問:Whatdotheydoafterschool?對afterschool提問:Whendotheyplayfootball?由連系am，is，are構(gòu)成的句子：變一般疑問句時把a(bǔ)m，is，are提到句子的前面，句尾用問號即可。變否定句時直接在am，is，are后面加not即可。

4、例如：肯定句:Heisastudent.一般疑問句:Isheastudent?否定句:Heisnotastudent.反問句:Heisastudent,isnthe?Heisntastudent,ishe?畫線提問:對he提問:Whoisastudent?對astudent提問:Whatishe?orWhatdoeshedo?由情態(tài)動詞can,may,should等構(gòu)成的句子:變一般疑問句時把can,may,提到句子的前面,句尾用問號即可.變否定句時直接在can,may,后面加not即可.例如:肯定句:Shecanswim.一般疑問句:Cansheswim?否定句:Shecannotswim.

5、反問句:Shecanswim,cantshe?Shecannotswim,canshe?畫線提問:對she提問:Whocanswim?對swim提問:Whatcanshedo?由行為動詞構(gòu)成的句子:需要加助詞do或does.變一般疑問句時把do/does放在句子前面.例如:肯定句:Theyplayfootballafterschool.一般疑問句:Dotheyplayfootballafterschool?否定句:Theydont(donot)playfootballafterschool.反問句:Theyplayfootballafterschool,dontthey?Theydontpla

6、yfootballafterschool,dothey?畫線提問:對they提問:Whoplayfootballafterschool?對playfootball提問:Whatdotheydoafterschool?對afterschool提問:Whendotheyplayfootball?根據(jù)句后括號內(nèi)的要求，填入句中所缺的詞：knowtheanswer.（一般疑問句）knowtheanswer?.Wecanseesomebirds.（一般疑問句）seebirds?.Thereisacomputerinmyhouse.（一般疑問句）acomputerinhouse?.Therearesome

7、flowersontheteachersdesk.（一般疑問句）flowersontheteachersdesk?.Therearesomeapplesonthetree.（否定式）Thereapplesonthetree.thinkheisveryold.（否定句）Ithinkheveryold.Pleasecolouritgreen.（否定句）colouritgreen.WecanspeakgoodEnglish.（變否定句）WespeakgoodEnglish.Thankyouforhelpingme.（同義句）TOC o 1-5 h zThankyoufor.Therearentany

8、pearsinthebox.（同義句）Therearepearsinthebox.Whosearetheseclothes?（同義句）arethese?.Letmelookatyourbook.（同義句）Letmeyourbook.13.Hersweaterisred.（對劃線部分提問)ishersweater?14.Mypencilsareinthepencil-box.（對劃線部分提問）yourpencils?15.Igetupatsixeveryday.（對劃線部分提問）doyougetupeveryday?.Therearefiftystudentsinmyclass.（對劃線部分提問

9、）studentsarethereinyourclass?.Thesearecars.（用buses改寫成選擇疑問句）Arethesecars?.Thebookisinmyschoolbag.（變否定疑問句）thebookinyourschool-bag?.Twoboysareinourhouse.（改為therebe句型）twoboysinourhouse.Cantyoufindthemap?（作肯定回答）,I.參考答案：1.Doyou2.Canyou,any3.Isthere,your4.Arethereany5.arenotany6.dont,is7.Pleasedont8.cannot

10、9.yourhelp10.no11.Whoseclothes12.havealookat13.Whatcolour14.Whereare15.Whattime16.Howmany17.orbuses18.Isnt19.Thereare20.Yes,can一、變否定句時相關(guān)詞的改變肯定句變否定句時，除將謂語變?yōu)榉穸ㄊ酵?，句中其他詞語也可能隨之改變，如將or等：some改為any，too和also改為either，already改為yet，and改為Therearesomebirdsinthetree.樹上有些鳥。fTherearentanybirdsinthetree.樹上沒有鳥。Helikes

11、thegirl,too.他也喜歡這個女孩。fHedoesntlikethegirl,either.Wehavealreadyseenthefilm.fWehavenotseenthefilmyet.Helikessinginganddancing.他也不喜歡這個女孩。我們已看過這部電影。我們沒有看這部電影。他喜歡唱歌和跳舞。fHedoesntlikesingingordancing.他不喜歡唱歌也不喜歡跳舞。二、不變謂語動詞而變其他詞語有時將肯定句變?yōu)榉穸ň鋾r，不改變謂語而改變其他詞語：Bothofuswentthere.我們兩人都去了那兒。我們兩人都沒去那兒。fNeitherofuswentthere.both,all,always,everynotalways吉姆和瑪麗都會唱這首歌。吉姆和瑪麗都不會唱這首歌。所有這些書都值得讀。所有這些書都不值得讀。聽到這事時我們都笑了。（肯定句）聽到這事時我們并未都笑。（部聽到這事時我們并未都笑。（部分（完全否定）等，即notboth表表示“并非總是”，notBothJimandMarycansingthissong.fNeitherJimnorMarycansingthissong.Allofthebooksareworthreading.fNoneofthebooksareworthreading.三、部分否定與完全否定