Be动词的几种形式与用法.ppt

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1、Be动词的几种形式与用法肯定式否定式Iamastudent.Iamnotastudent.He/She/Itis......He/She/Itisnot.......We/You/Theyare......We/You/Theyarenot......be动词包括am，is，are.一．肯定式与否定式(以人称代词为例)肯定句：主语+be+其它。否定句：主语+be+not+其它。Iamastudent.Iamnotadoctor.SheisLucy.SheisnotLily.Theyareathome,T

2、heyarenotatschool.疑问式简略回答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疑问式与简略回答一般疑问句：Be+主语+其它？回答：Yes,主语+be./No,主语+be+not.Areyouateacher?Yes,Iam./No,Iamnot.Areyou

3、students?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’ren

4、ot./theywearen’t.缩略形式eg:I’maboy.I’mnotanurse.You’retenyearsold.You’renotourclassmates.She’smysister.She’notmybrother.Be动词的用法口诀：I用am，you用are，is连着他，她，它；单数名词用is，复数名词全用are,变疑问，往前提，句末问号莫丢弃;变否定，更容易，be后not莫忘记,疑问否定任你变，句首大写莫迟疑。课堂习题用am,is,are填空1.-Who______I?-I____

5、__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______atscho

6、ol.9.Whosedress______this?10.Whosesocks______they?12.Who______I?写出下列词适当形式:1.Iam(缩略形式)______2.is(复数)______3.weare(缩略形式)______4.arenot(缩略形式)_____5.isnot(缩略形式)______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.否定句:一般

7、疑问句:回答：2.Thosearehisparents.否定句:一般疑问句:回答：3.I’m14yearsold.否定句:一般疑问句:回答：按要求完成句子4.Therulerisonthedesk.否定句:一般疑问句:回答：5.Myshoesare20yuan.否定句:一般疑问句:回答：6.MynameisAndy.否定句:一般疑问句:回答：