20xx春鲁教版英语七下unit5canyoucometomypartysectiona3a-3cppt课件

20xx春鲁教版英语七下unit5canyoucometomypartysectiona3a-3cppt课件内容摘要：

日 Sunday Do you know week? colorful weekend activities go fishing go shopping go skateboarding play basketball go to the cinema climb mountains surf the Inter go to a party go to the concert study for a test go to the doctor have a piano lesson visit his aunt go to a baseball game/ have baseball training Weekend Activities What do you usually do on weekends? What activities do you do on weekends? have to … 不得不 A: What do you have to do this weekend? B: I have to… What weekend activities do you do? study for a test go to the doctor have a dancing lesson 情态动词主要有： may/might, can/could, must, have to, shall/should, will/would, ought to, need, dare, used to。 Grammar focus 现在我们来着重学习情态动词 can 以及 have to 的用法。 其特征主要有： 1. 不能独立作谓语，只能和动词原形一起构成谓语，表示说话人的语气和情态。 2. 没有人称和数的变化。 (have to除外 ) 3. 否定形式：在其之后加 not (have to除外 )。 疑问形式：情态动词提到主语之前 (have to 除外 )。 can为情态动词 , 在本单元中表示 请求 , 用于发出邀请，后跟动词原形。 当同意接 受对方的邀请时 , 常用 Sure, I’d love to. / Certainly. /Of ；若不接受 , 常用 Sorry等来有礼貌地拒绝 , 一般情况下 需要说明不能接受邀请的原因以表示歉意。 —Can you e to my birthday party tomorrow。 明天你来参加我的生日聚会，好吗。 —Sorry, I can’t. I am going to visit my grandpa. 很抱歉，我来不了，我要去看我爷爷。 1. can/may (1) 都可表示 “许可”。 may用于较正式、客气的场合，而 can比较随便（口语）。 You may/can smoke here.  Borrowers may not take out of the library more than two books at a time.  The policeman says you can’t park here. (2) May/Can I/we…? 表示征询对方许可。 Can you…? 表示请求。 ① — May I use your phone? — Yes, you may./Yes, please. /No, you may not. /No, you mustn’t. /No, you’d better not. /I’m afraid not. /I’m sorry. I’d rather you didn’t. ② — Can I go out and play, Mum? — Yes/Certainly, you can. /No, you can’t. ③ — Can you help me with this bag? — With pleasure./Sorry, I can’t. (3) 都可表示“可能性” 肯定句 Mr. Reed looks pale. He may be ill. (事实上的可能 ). Mr. Read is in poor health. He can be ill at any time. (逻辑 、理论上的可能 ) This news may be true. (=might/could) (事实上的可能 ) Wang Wei can be really stubborn. (有时或偶然可能会 )(=could) 否定句 This news may not be true. (也许不 , =might not ) This news can’t be true. (不可能 , =couldn’t) 疑问句 Can this news be true?(=Could) ≠May this news be true? (4) can 还可表示“能力”、“能够” —You can swim, can’t you? —No, I can’t. I can’t promise anything, but I’ll do what I can. Tickets can be bought from the Tourist Information Center. 2. might/could (1) 分别为 may和 can的一般过去时，分别表示过去的“许可”、“可能”和“能力” 、“能够”等。 The children asked whether they could/might go for a swim.(过去许可 ) I was afraid it might rain that afternoon. (过去可能 ) He asked if the news could be。