复件七上U1T3SB.ppt

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1、Section BUnit 1 Making New FriendsTopic 3 What class are you in?ChengbeiChengbei Junior High School Junior High School Chen Chen JunxiaJunxiaLets review.-How old are you?-I am twelve(years old).-What class/grade are you in?-I am in(Class Seven,)Grade Seven.-Whos that?-Thats Maria.-Whats this in Engl

2、ish?（用英语表达）（用英语表达）-Its a desk.an apple-Whats this in English?-Its a/anan erasera mapa pencila pena toya和和an的区别的区别1.a 用在以用在以辅音音素辅音音素开头的单词前。开头的单词前。例如：例如：a map，a desk,a pen,a pencil2.an 用在以用在以元音音素元音音素开头的单词前。开头的单词前。例如：例如：an eraser，an applea/an被称作不定冠词，用在单数可数名词前，表达某一被称作不定冠词，用在单数可数名词前，表达某一个人或事物中的一个，相当于汉语的个

3、人或事物中的一个，相当于汉语的“一一”，但不强调但不强调数目概念。数目概念。a/an用法的区别：用法的区别：a TVa CDa pena mapan applean eraser-Whats that in English?-Its a/anA:Whats this in English?Lets say together.B:Its an eraser.A:How do you spell it?B:E-R-A-S-E-R,eraser.A:Thank you.B:Thats OK.A:Whats that in English?B:Its a toy.A:Can you spell it,

4、please?B:Yes.T-O-Y,toy.A:Thank you.B:Thats OK.Section BLook,listen and say.Excuse me,whats this in English?Its an eraser.（视频（视频P19-1a）mapdeskpenpencileraserThanks.=_Youre welcome.=_Thank you.Thats OK.Listen and complete the conversations.A:Excuse me,whats _ in English?B:Its _ pencil.A:How do you spe

5、ll it?B:P-E-N-C-I-L,_.A:Thank you.B:_ _.apencilYoure welcomethis(录音录音P19-1b)A:Excuse me,whats _ in English?B:Its _ apple.A:_ _ _ _?B:Yes,A-P-P-L-E,apple.A:_.B:Thats OK.anCan you spell itThanksthatThat is a toy.Is that a toy?This is an eraser.Is this an eraser?be动词被提到了句首。动词被提到了句首。句型也由陈述句变成了一般疑问句。句型也由

6、陈述句变成了一般疑问句。It is an apple.(变为一般疑问句）Is it an apple?A:Is this an eraser?B:Yes,_.A:Thank you.A:Is that a pen?B:No,_.It is a pencil.it isit isntListen and complete the conversation with the correct words.Then practice with your partner.Is that a toy,too?An eraser?Wow!No,its an _.No,it isnt.Its a _.Is t

7、his a _?（视频（视频P20-2a）telephonetoyeraserA:Whats this in English?B:Is it a/an?A:Yes,it is.How do you spell it?/No,it isnt.Please try again.B:摸一摸，猜一猜摸一摸，猜一猜Sum up(总结总结)：1.-Whats this/that in English?-Its a/an 2.-How do you spell it?-Can you spell it?3.-Is this/that/it a/an?-Yes,it is./No,it isnt.（1）总结：在学过的名词中，哪些前面加）总结：在学过的名词中，哪些前面加a，哪些前面加哪些前面加an。（2）参考）参考1a/2a，自编两则对话。，自编两则对话。