be动词的一般现在时.ppt

Be 动词的一般现在时(am,is are)1.am 第一人称单数 I e.g I am a techer.2.is第三人称单数 he,she,it e.g He is a doctor.She is a nurse.It is a dog.3.are 其他人称 we,they,you e.g We are doctors.They are nurses.You are a good girl.Be 动词的常用句型1.肯定句，主语+be 动词+其他 He is a student.2.否定句，主语+be 动词+not+其他 He is not a student.be动词加not的缩写：is not=isnt are not=arent3.一般疑问句，be 动词+主语+其他?Is he a student?回答：Yes,he is.No,he isnt.4.特殊疑问句，特殊疑问词+be 动词+主语+其他 What is your name?Who is Lily in this photo?practice一、根据句子写出be动词的正确形式。1、They()from Beijing.2、It()an orange.3、I()Chinese.4、She()playing the piano.5、You()so beautiful to me.areisam isare二、把下列句子变成相应的句型。They are all from America.一般疑问句：Are they all from America?作肯定和否定回答：Yes,they are.No,they arent.否定句：They are not all from America.