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而“ have to”要加助動(dòng)詞 do , has to要加助動(dòng)詞 does ,還原 have to had to要加助動(dòng)詞 did,還原 have to 才可能完成其疑問、否定句。Unit 5 Can you e to my party? A: Can you swim? B: Yes, I can. /No, I can’t. A: Can you play football? B: Yes, I can. /No, I can’t. 表示能力的回答 Language Goals: Make invitations Decline invitations accept invitations Talk about obligations A: Can you e to my birthday party? B: Sure, I’d love \like to. 接受邀請(qǐng)的回答 A: Can you e to my birthday party? B: Sure, I’d love\like to. A: Can you e to my birthday party? B: Sorry, I can’t. I have to … 拒絕邀請(qǐng) 的回答 help my parents. Work in pairs A: Can you e to my birthday party? B: Sorry, I can’t. … 自由操練 可參考圖片 I have to prepare for an exam . Explanation 1. can 的用法 (1)表邀請(qǐng)。 試將下面三種話分別寫成 ( 1)一般疑問句,并做肯定回答。 Can you ? A: Can you e to my birthday party? ? B: Sorry, I can’t. … ? I have the flu . ? =I have a cold. =I catch a cold. Can you ? A: Can you e to my birthday party? ? B: Sorry, I can’t. … ? I have to go to the doctor. Can you ? A: Can you e to my birthday party? ? B: Sorry, I can’t. … I have to meet my friend Today we have learnt how to say “yes” or “no” to someone’s invitation and give a reason. 1) Can you …? 常用于發(fā)出邀請(qǐng) .在口語也用 would you like to …? Could you …? 2) Sure , I’d love to .這是對(duì)邀請(qǐng)的肯定回答 , 表示接受邀請(qǐng) .Sure用于口語 , 相當(dāng)于 Certainly, yes. 3) Sorry, I can’t. 是對(duì)邀請(qǐng)的否定回答。 2). prepare sb. 給 ......準(zhǔn)備 ......, 也可轉(zhuǎn)換為 prepare sth. for sb. . She prepared us a nice breakfast. = She prepared a nice breakfast for us. 她給我們準(zhǔn)備了可口的早餐。 4). prepare to do “準(zhǔn)備做 ......”。