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1、,Topic 3 What class are you in? Section B,Unit 1,Task1.Review,1.How old .?,2.What class .in?,eraser,map,pencil,apple,desk,book,ruler,pen,car,egg,orange,Whats this in English?,Its a pen.,Its a pencil.,Its a book.,Whats that?,Its an apple.,Its an orange.,Its an egg.,Its a pen.,Its a pencil.,Its a book
2、.,Its an apple.,Its an orange.,Its an egg.,a,an,你发现什么规律了吗？,a和an的区别,1. a 用在以辅音音素开头的单词前。 例如：a pen;a pencil;a book,2. an 用在以元音音素开头的单词前。 例如： an apple ;an orange;an egg;,你知道吗,A: Whats this in English?,B：Its an eraser.,A: How do you spell it?,B:E-R-A-S-E-R,eraser.,A:Thank you.,B:Thats OK.,1.Whats this in
3、English? 2.How do you spell it?,A: Whats that?,B：Its a map.,A: Can you spell it ,please?,B:Yes,M-A-P,map.,A:Thanks.,B:You are welcome.,1.Whats that? 2.Can you spell it,please?,Section B,1a,Look, listen and say,Its a map.,Excuse me, whats this in English?,Whats that in English, Maria?,Its an eraser.,
4、（影片1）,1b Complete the conversations and then practice with your partner.,A: Excuse me , whats _ in English? B: Its _ pencil. A: How do you spell it? B: _, pencil. A: Thank you . B: _ _.,a,P-E-N-C-I-L,Youre welcome,this,A: Excuse me, whats _ in English? B: Its _ apple. A: _ _ _ _, please? B: Yes. A-d
5、ouble P-L-E, apple. A: _. B: Thats OK.,an,Can you spell it,that,Thanks,2a,Look, listen and say,Is that a toy, too?,An eraser? Wow!,No, its an eraser.,No, it isnt. Its a toy.,Is this a telephone?,（影片2）,A: Is this an eraser? B: Yes, _. A: Thank you.,A: Is that a pen? B: No, _. It is a pencil.,it is,it
6、 isnt,A: Is that a desk? B: Yes, it is.,A: Is this an orange? B: No, it isnt. Its an apple.,Sum up,Patterns : Whats this / that in English? Its a / an How do you spell it ? Is this a /an ? Yes, it is. / No, it isnt. 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） 复习并预习且记单词。,Homework,