重庆市云阳县水口初级中学七年级英语上册 Unit 1 Topic 3 What class are you in Section B课件2 （新版）仁爱版.ppt

Topic 3 What class are you in? Section BUnit 1A: Excuse me, what’s this?B: It’s a book.A: What’s that in English?B: It’s an egg.a blackboarda toyA和和AN的区别的区别1. a 用在以辅音音素开头的单词前用在以辅音音素开头的单词前 例如：例如：a book; a desk2. an 用在以元音音素开头的单词前用在以元音音素开头的单词前 例如：例如：an egg; an appleapplerulerpencilbookdeskaaaaaneraserpentoymapaaaan2aLook, listen and sayIs that a toy, too?An eraser? Wow!No, it’s an eraser.No, it isn’t. It’s a toy.Is this a telephone?What’s this/that in English?It’s a / an …Can you spell it?Yes.How do you spell it?…Thank you. / That’s OK. /Thanks.You’re welcome.Section B1aLook, listen and sayIt’s a map.Excuse me, what’s this in English?What’s that in English, Maria?It’s an eraser.1b Complete the conversations and then practice with your partner.A: Excuse me , what’s ____ in English?B: ____ _____ pencil.A: How do you spell it?B: _____________, ______.A: Thank you .B: ______ ___________.It’s aP-E-N-C-I-LpencilYou’re welcomethisA: ______ _____, what’s that in English?B: ____ _____ apple.A: ___ ____ ____ ____ , __ ____ _ ____ _ ?B: A-double P-L-E, apple.A: ________.B: You’re welcome.It’s anCan you spell it pleaseExcuse meThanksExample:What’s this in English?Is it a / an …?Yes, it is. /No, it isn’t. It’s a / an … Touch and guess what it is with eyes covered. Use sentences of identifying objects.Sum up1.Patterns : What’s this / that in English? It’s a / an … How do you spell it ? … Is this a /an …? Yes, it is. / No, it isn’t.2. New words: a/an, spell, can, please, double etc.（1）总结：在学过的名词中，哪些前面￿￿￿￿￿￿￿￿￿￿加a，哪些前面加an。

2）参考1a，自编两则对话，写在￿￿￿￿￿￿￿￿￿作业本上。