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1、一、be动词用法口诀：“我”用am，“你”用are，is用于“他、她、它”。 注解：（1）am和I连用，如：Iamastudent. AmIagoodstudent? （2）are和you连用，如：Youareagoodstudent. Areyouateacher? （3）is和he,she,it或能用“he,she,it”来代替的词来连用，如： He/She/Itisintheclassroom. Ishe/she/itintheclassroom?
2、 This/Thatisapencil. Isthis/thatapencil? Myfatherisateacher.Mybrotherisastudent.Isyourmotherateacher?二、含有be动词（am,is,are）的句子1、 肯定句：人/物+am/is/are+其它. Iamastudent. Youareagoodstudent. He/She/Itisintheclassroom. This/Thatisapencil.
3、 Myfatherisateacher.2、 否定句：人/物+am/is/are+not+其它.（在肯定句中的am/is/are后面加not） Iamastudent.→Iamnotastudent. Youareagoodstudent.→Youarenotagoodstudent. He/She/Itisintheclassroom.→He/She/Itisnotintheclassroom. This/Thatisapencil.→This/Thatisnotapencil.
4、 Myfatherisateacher.→Myfatherisnotateacher. 注解：isnot可以缩写成isn’t，arenot可以缩写成aren’t，amnot不能缩写。3、 一般疑问句：Am/Is/Are+人/物+其它?（把肯定句中的am/is/are移到句子前面） Iamastudent.→Areyouastudent?（I改成you,am改成are） Youareagoodstudent.→AmIagoodstudent?（you改成I,are改成am） He/She/Iti
5、sintheclassroom.→Ishe/she/itintheclassroom? This/Thatisapencil.→Isthis/thatapencil? Myfatherisateacher.→Isyourfatherateacher?（my改成your）4、 一般疑问句的回答 （1）肯定回答：Yes,Iam. Yes,he/she/itis. Yes,youare. Areyouastudent? Yes,Iam. AmIago
6、odstudent? Yes,youare. Ishe/she/itintheclassroom? Yes,he/she/itis. Isthis/thatapencil? Yes,itis. Isyourfatherateacher? Yes,heis. （2）否定回答：No,I’mnot. No,he/she/itisn’t. No,youaren’t. Areyouastudent? No,
7、I’mnot. AmIagoodstudent? No,youaren’t. Ishe/she/itintheclassroom? No,he/she/itisn’t. Isthis/thatapencil? No,itisn’t. Isyourfatherateacher? No,heisn’t.
