Be動詞的幾種形式與用法肯定式否定式Iamastudent.Iamnotastudent.He/She/Itis......He/She/Itisnot.......We/You/Theyare......We/You/Theyarenot......be動詞包括am，is，are.一．確定式與否認式(以人稱代詞為例)確定句：主語+be+其它。否認句：主語+be+not+其它。Iamastudent.Iamnotadoctor.SheisLucy.SheisnotLily.Theyareathome,Theyarenotatschool.疑問式簡略回答AmI......?Yes,Iam.No,Iamnot.Ishe/she/it......?Yes,he/she/itis.No,he/she/itisn’tArewe/you/they......?Yes,we/you/theyare.No,we/you/theyaren’t疑問式與簡潔答復一般疑問句：Be+主語+其它？答復：Yes,主語+be./No,主語+be+not.Areyouateacher?Yes,Iam./No,Iamnot.Areyoustudents?Yes,weare./No,wearen’t.Isheaworker?Yes,heis./No,heisn’t.肯定式否定式Iam→I’mI’mnot.youare→you’reyou’renot./youaren’t.heis→he’ssheis→she’sitis→it’she’snot./heisn’t.she’snot./sheisn’t.it’snot./itisn’t.weare→we’retheyare→they’rewe’renot./wearen’t.they’renot./theywearen’t.縮略形式eg:I’maboy.I’mnotanurse.You’retenyearsold.

You’renotourclassmates.She’smysister.She’notmybrother.Be動詞的用法口訣：

I用am，you用are，is連著他，她，它；單數名詞用is，復數名詞全用are,變疑問，往前提，句末問號莫丟棄;變否認，更簡潔，be后not莫遺忘,疑問否認任你變，句首大寫莫遲疑。課堂習題

用am,is,are填空

1.-Who______I?-I______aboy.-______youaboy?-No,I_____not.

2.Thegirl______Jack”ssister。3.Thedog_______tallandfat.

4.Themanwithbigeyes_______ateacher.

5.______yourbrotherintheclassroom?6.-Where_____yourmother?-She______athome.

7.How_______yourfather?8.MikeandLiuTao______atschool.

9.Whosedress______this?10.Whosesocks______they?

12.Who______I?寫出以下詞適當形式:1.Iam(縮略形式)______2.is(復數)______3.weare(縮略形式)______4.arenot(縮略形式)_____5.isnot(縮略形式)______6.it”s(完整形式)_____7.she”s(完整形式)______8.they”re(完整形式)___按要求完成句子1.Hisbrotherisateacher.否認句:一般疑問句:答復：2.Thosearehisparents.否認句:一般疑問句:答復：3.I’m14yearsold.否認句:一般疑問句:答復：按要求完成句子4.Therulerisonthedesk.否認句:一般疑問句:答復：5.Myshoesare20yuan.否認句:一般疑問句:答復：6.M