人教版七年级英语上册Unit 3 period1课件.ppt

Unit 3 Ist his your pencil ? Period 1 (1a-1 c) ---What ’ s this ? ---It ’ s a/an … . Is this your …? Yes ,it is. It ’ s my …一、 Lead-in (3') ’ s this? It ’ s a pencil. Is this your pencil? Yes, it is. It’s my pencil . ’ s that ? It ’ s an eraser. Is that your eraser? No, it isn ’ t. It’ s her eraser . these your dictionaries? No, they aren ’ t. They ’ re his dictionaries . = It ’ s mine. =It ’ s hers. =They ’ re his. 1b words 三、 Discussion (9') 1. Check your answers . 2. Make a conversation like this: Is this your …? Yes, it is. It ’s mine . Is that your …? No, it isn ’ t. It ’s his . Are these your …? No, they aren ’ t. They ’ re hers . (可以拓展) 四、 Showtime (8') your answers. 2. Show your conversations. 1. 含有 be 动词的一般疑问句含有 be 动词的一般疑问句是由 be 动词( am, is, are )+主语+其他成分+?”构成的,用来询问某事物或某种情况是否属实,需要对方做出肯定或否定回答的一种疑问句。回答时先说 Yes 或 No ,再给出简略回答。因此也叫 Yes/No 疑问句。 That is your ID card. They are teachers. I am at home. 五、 Explanation(9') 答语: 肯定回答: Yes ,主语+be ( am, is, are ) 否定回答: No ,主语+be ( am, is, are ) not. 1) .---Is he your brother? ---Yes, he is./No, he isn ’ t. 2) .---Are you a teacher? ---Yes, I am./No, I ’ m not. 注意:( 1)在肯定的简略回答中,主语不能与 be 动词缩写在一起, (2)在否定的简略回答中, be 动词常与 not 缩写在一起。( am 和 not 不能缩写) (3)两个缩写词不能同时使用。 They are not my ruler. 不能缩写成 They ’ ren ’t. This is my pencil. Is this your pencil? 含有 be动词的陈述句变为一般疑问句的步骤 { 形容词性物主代词名词性物主代词 my your his her mine yours his hers 物主代词是表示所有关系的词。形容词性物主代词相当于形容词,后面要跟名词。名词性物主代词相当于名词,后面不能再跟名词。例如: 1).This is my eraser . This eraser is mine. 后一句中的 mine 就相当于________. 2). That is her jacket . That jacket is hers . 此句中的 hers 就相当于________. 即:名词性物主代词相当于形容词性物主代词+名词。