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1、七上am, is, are的用法微课说明（阮芝兰）对于七年级上册的学生来说，be动词的用法属于重点，也属于难点。现在我把be动词的简单用法做成微课，有利于学生课前预习，课堂探讨和课后复习。具体内容如下：第一步：微课导入（用英文自我介绍，让学生感知Be动词的各种形式，并观察得到句子是由主语+be动词+组成）。I am your English teacher. / My name is Ruan Zhilan.My English name is Landia. / I am from Changsha.It is a nice city. / It is very beautiful.Lucy
2、 and Jim are my good friends. / We are in the same school.第二步：具体讲解be动词am的用法。I am Lucy. / I am a girl. / I am 12 years old.总结：当主语为I时，be动词用am。第三步：具体讲解be动词is的用法。1, She is Lily. / He is from Changsha. / It is blue.主语为第三人称单数时，be动词用is。2, This is my teacher. / That is a nice bag. 主语为指示代词单数时，be动词用is。3, Lily
3、 is my sister. / Wang Li is having lunch. / David is at school now.主语为单个人名时，be动词用is。4, My name is Tom. / The movie is funny. / The ruler is on the desk. 主语为可数名词单数时，be动词用is。5, The milk is cheap. / The bread is delicious. / The water is clean. 主语为不可数时，be动词用is。总结：当主语为第三人称单数，指示代词单数，单个人名，可数名词单数或不可数名词时，be
4、动词用is。第四步：具体讲解be动词are的用法。1, We are twins. / They are sisters.You are cousins. / You are a clever boy.主语为第一二三人称复数或第二人称单数时，be动词用are。2, These are flowers. / Those are my parents. 主语为指示代词复数时，be动词用are。3, Lily and Lucy are friends. / The pen and the book are mine. 主语为and连接的两个并列成分时，be动词用are。4, The bikes are old. / The trees are very tall. 主语为可数名词复数时，be动词用are。总结：当主语为第一二三人称复数，指示代词复数，and连接的两个并列成分或可数名词复数时，be动词用are。