最新六年级英语下册Unit6DonteatinclassSectionAGrammarFocus3c课件

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1、Unit 6 Dont eat in class.Section A(Grammar Focus-3c).选句子配图选句子配图A.Dont talk.B.Dont eat food and drink.C.Dont take photos.D.Dont drink.答案：答案：14.CABD.句型展示句型展示1.她必须在图书室里保持安静吗？她必须在图书室里保持安静吗？是的。是的。_ she _ _ _ quiet in the library?Yes,she _.答案：答案：Does;have to be;does2.我们能在走廊里听音乐吗？我们能在走廊里听音乐吗？不，不能。不，不能。_ we

2、 _ _ music in the hallways?No,you_.3.我们不必天天来上学。我们不必天天来上学。We _ _ _ come to school every day.答案：答案：2.Can;listen to;cant 3.dont have tohave to 必须；不得不必须；不得不Does he have to wear a uniform at school?在学校里他必须穿校服吗？在学校里他必须穿校服吗？He has to help his mother cook dinner.他得帮他妈妈做晚饭。他得帮他妈妈做晚饭。He doesnt have to clean t

3、he room.他不必打扫房间。他不必打扫房间。【探究总结探究总结】have to的用法的用法(1)have to为情态动词，意为为情态动词，意为“必须，不得不必须，不得不”。第三人称单数。第三人称单数为为 has to，过去时为，过去时为had to,将来时为将来时为will have to。(2)否定形式和疑问形式要借助否定形式和疑问形式要借助do,does,did 等助动词来完成，等助动词来完成，其否定形式为其否定形式为dont/doesnt/didnt have to,其疑问形式为：其疑问形式为：Do/Does/Did.have to.?(3)have to的同义词为的同义词为 mus

4、t，但两者用法不同。，但两者用法不同。have to强调客观需要。有人称和时态的变化。强调客观需要。有人称和时态的变化。must 强调主观看法；强调主观看法；mustnt 意为意为“禁止禁止”。无人称和数的。无人称和数的变化，且只能用在一般现在时中。变化，且只能用在一般现在时中。【学以致用学以致用】他今天得去看望他爷爷。他今天得去看望他爷爷。He _ _ visit his grandfather today.今天你不必穿校服。今天你不必穿校服。You _ _ _ wear your school uniform today.答案：答案：has to dont have to.选词填空选词填空

5、quiet,eat,cant,uniform,late 1.Dont_anything in class.2.Dont talk loudly in the library.Please be_.3.Dont get up_on weekdays.答案：答案：1.eat 2.quiet 3.late4.We_listen to music in the classroom but we can listen to it in the music room.5.As a student,you have to wear your school_.答案：答案：4.cant 5.uniform.句型

6、转换句型转换1.I have to get up early.(改为一般疑问句改为一般疑问句)_ you _ _ get up early?2.He has to go shopping with his mother.(改为否定句改为否定句)He _ _ _ go shopping with his mother.答案：答案：1.Do;have to 2.doesnt have to3.We can wear our own clothes.(改为一般疑问句，并作否定回改为一般疑问句，并作否定回答答)_ we _ our own clothes?No,you _.答案：答案：Can;wear;cant