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1、Unit 9 Can you come to my party?A: Can you swim?B: Yes, I can. /No, I cant. A: Can you play football?B: Yes, I can. /No, I cant. 表示能力的回答Language Goals:Make invitationsDecline invitations accept invitationsTalk about obligationsA: Can you come to my birthday party?B: Sure, Id love like to.接受邀请的 回答A:
2、Can you come to my birthday party? B: Sure, Id lovelike to.A: Can you come to my birthday party? B: Sorry, I cant. I have to 拒绝邀请的回答help my parents. Work in pairsA: Can you come to my birthday party? B: Sorry, I cant. 自由操练 可参考图片I have to prepare for an exam .Explanation 1. can 的用法 （）表邀请。若接受邀请，回答为：OK
3、./All right./Sure./ Of course./Certainly./Yes(Sure),Id love(like) to.若不接受邀请，回答为：Sorry,cant.(+原因)eg . Can you come to the party? Yes/Sure,Id love/like to. Sorry,Icant. I have to help my parents.其他表邀请的句型:1) Could /Will/Would you come to the party?2) Would you like /love to come to the party?3) I hope
4、you come to the party.4) Please come to the party.5) How/What about coming to the party?（）表能力“能，会”否定句 cant不能eg. He can swim,but I cant.How long can you stay under water?（）在否定句，疑问句中表示“不可能”或“一定不”eg. Can he come ?No,he cant come.（他会来吗？不，他不能来）2.情态动词“have to”与其他的情态动词如：“can” , “may” “must”和 “should” 不同。（1
5、）这4个情态动词没有人称和数的变化,而have to有。它的第三人称单数为“has to” ,过去时为had to, 如： He should study hard .他应该好好学习。He has to study hard .他不得不好好学习。（2）这4个情态动词在一般疑问句中将它们放在句首, 在否定句中直接在他们后边加not即可。我们以can为例:Can he go with us ?他能和我们一起去吗？He cant go with us .他不能和我们一起去。而“have to”要加助动词do ,has to要加助动词does ,还原 have tohad to要加助动词did,还原
6、have to才可能完成其疑问、否定句。 试将下面三种话分别写成（1）一般疑问句，并做肯定回答。（2）否定句。1: They have to go to the party .Do they have to go to the party ? Yes , they do .They dont have to go to the party.2：He has to go to see the doctor .Does he have to go to see the doctor?Yes , he does . He doesnt have to go to see the doctor .3：
7、 She had to have a piano lesson yesterday.Did she have to have a piano lesson yesterday?Yes, she did .She didnt have to have a piano lesson yesterday.2 .have to强调客观上需要做某事，即表示外界 条件的需要不得不做某事，含有“客观所迫”的 意味，它有人称和数的变化，可用于多种时态 中，否定式为“不必”。 must强调说话者主观上认为必须做某事，含 有“主观判断”的意味，它的否定式意为“禁止， 不允许”。 eg. If one gets i
8、ll,hell have to see a doctor. She has to go to school by bus. We must go to school on time. -Must I finish the homework now ? -Yes, you must./No,you neednt(dont have to). You mustnt play football in the classroom.3. I have to help my parents .我不得不帮助我的父母。help sb. with sth .或help sb (to) do sth .上一句我们
9、可以说：I have to help my parents with the housework .或说I have to help my parents (to) do the housework . 4. have 构成的短语 1) have a rest/look/swim/walk 2)have a meeting/class/lesson/drink（喝一杯饮料） /party 3)have breakfast/lunch/supper(dinner)/meals 4)have a good time/have fun (in) doing sth. 5)have a try 试一试
10、 6) have sth on 穿戴着（不可用进行时）be wearing eg. But he has nothing on.可他什么也没穿。 7) have/let/make sb.do sth.=get sb.to do sth.让某人做某事 8) have sth.done 请叫某人做某事eg. I have the students answer my questions.我让学生回答 我的问题。Tim will have his hair cut tomorrow. Tim 明天要去理发。Can you A: Can you come to my birthday party? B
11、: Sorry, I cant. I have the flu . =I have a cold. =I catch a cold.Can you A: Can you come to my birthday party? B: Sorry, I cant. I have to go to the doctor. Can you A: Can you come to my birthday party? B: Sorry, I cant. I have to meet my friend Today we have learnt how to say “yes” or “no” to some
12、ones invitation and give a reason. 1) Can you ?常用于发出邀请.在口语也用would you like to ? Could you ? 2) Sure , Id love to .这是对邀请的肯定回答, 表 示接受邀请.Sure用于口语, 相当于Certainly, yes.3) Sorry, I cant. 是对邀请的否定回答。Have to “不得不, 必须”,三单用has to .A:Can you come to my party?B:Im sorry. I have tohelp my mom.A: Can you playtennis
13、 ?B: Sure,Id love to.Can youA: Can you come to my party?B: Sure,Id love to.A:Can you go to the mall?B:Im sorry. Im going to the movies. Can you1a. Match the words with the pictures.Match the words with the picturesa-eprepare for an eaxmmeet my friendhave the flugo to the doctorhelp my parents1. Prep
14、are for an exam _ 2. help my parents _3. go to the doctor _ 4. meet my friend _5. have the flu _Check the answers!bcdea1b Listen and write the names (Tim, Kay, Anna and Wilson) next to the correct students in the picture.Tim Anna Kay Wilson 1. I have to help my parents.我不得不帮助我的父母。help sb. with sth.或
15、help sb (to) do sth.上一句我们可以说：I have to help my parents with the housework.或说 I have to help my parents (to) do the housework.Language pointshttp:/ invite v. 邀请 invite sb. to sth.e.g. Lucy invites me to her party.The Smiths invite us to dinner.invitation n. 邀请, 邀请书e.g. make an invitation accept an invitationdecline invitationThanks for your invitation!http:/ sorry, Im not available. 真抱歉，我没有空。此句中的available 表示“ 有空；不忙；有时间交谈或聊天”， 其后还可用 to do 引 出具体的事情。例如：Are you available tomorrow morning?明天早上你有空吗？Im afraid Im not available to help with the school
