Unit 3 It must belong to Carla. Section A Period Three 4a-4d 周村区第一中学 王倩

Teaching aims 1. 知识目标： laboratory=lab ； bear ； wolf; sleepy; pocket; wonder; tidy 2. 能力目标： 能熟练利用 must be, could be ; might be, can’t 做出推测。

used to do nothing much something unusual be interviewed by must be anything strange next door neighbor can’t be see sb running away feel uneasy have fun doing sth 过去常做某事 非常少 不寻常的事情 被 …… 采访 准是；一定 任何奇怪的事情 隔壁邻居 不可能是 看见某人跑开 感到不安 做某事取乐

Grammar 1 、 whose 用来对物主代词及名词所有格进行提问： 1 ）提问形容词性的物主代词。 如： These are my bananas. →Whose bananas are these? 2 ）提问名词性的物主代词。 如： That bedroom is mine. →Whose is that bedroom? Hers are in the classroom. → Whose are in the classroom? 3 ）提问名词所有格（不包括 of 构成的所有格）。 如： Those are the twins’ bags. → Whose bags are those? Tom’s mother is a good teacher. → Whose mother is a good teacher

2 、 must; might; can’t; could 等词的用法 1 ） must “ 必须 ” --Must I clean the classroom now? 我必须现在打扫教室吗？ —No, you needn’t. ( 注意：否定用 needn’t 作答 ) 2 ） must 表推测 “ 必定、一定、肯定 ” It must be Lucy’s schoolbag because her ID card is in it. It must belong to Carla. 3) mustn’t “ 不允许：绝对不可 ” You mustn’t smoke here. You may look at it, but you mustn’t touch it. 4 ）注意：含有 must be 的句子，在改为否定句时，要用 can’t be 而不是 mustn’t be It must be Tom’s. It can’t be Tom’s.

4) may,might 的用法 （ 1 ）表示 “ 允许 ” 意为 “ 可以 ” ，例如： You may leave now. （ 2 ）表推测，意为 “ 可能，或许 ” 例如： Your pen may /might be in your schoolbag. 你的钢笔可能在你的书包里。 （ 3 ） might 是 may 的过去式，语气更加委婉、客气。 Might I use your pen for a while? 我可以用会儿你的钢笔吗？

5 ） could （ can 的过去式） 能，会 ; 可能 He could not ride a bike two years ago. Could you help me?( 在此 could 语气更加委婉） It could be a bear or a wolf. 6) can’t 不能； 不可能（表可能性） The boy can’t answer the question. The man in the room can’t be Tom, because Tom has gone to Shanghai.

4a. Choose the best way to complete each sentence using the words in brackets 1. A: Where’s Jean? B: I’m not sure. She (is / might be / must be) in the laboratory. 2. A: Everyone is going to the pool after school. B: Really? It__________(must be / can’t be / could be) hot outdoors. might be must be

3. A: That’s the phone. B: Hmm. I wonder who it_________(must be / could be / should be). 4. A: I wonder if these are Jim’s glasses. B: They_________(can’t be / might be / could be) his. He doesn’t wear glasses. 5. A: I hear water running in the bathroom. B: It (could be / must be / can’t be) Carla. She was thinking of taking a shower. could be can’t be must be

4b.Complete these responses. 1. A: Many people are wearing coats. B: The weather must be _______________. 2. A: Sally has been coughing a lot. B: She might be _____________________. 3. A: There’s very loud music coming from the apartment next door. B: The neighbors must be_______________. 4. A: Whenever I try to read this book, I feel sleepy. B ： It____________________. very cold outdoors. catch a bad cold. have a party could be boring.

4c Look at this picture of a room. How much can you tell about the person who lives here? Is it a boy or a girl? What are his/her hobbies? Discuss your ideas with a partner. A: It could be a girl’s room because it’s very tidy. B: I guess so. But it might be a boy’s room because the clothes look like boys’ clothes.

当堂训练 1.—Is that our new English teacher ？ — Well, it_______ be, but I’m not quite sure. A. should B. might C. must D. can’t 2. —Whose bike is this? —It ______ belong to Adam. Look! His bag is on it. A. can B. may C. will D. must 3.—How is your friend coming? --I’m not sure. He _______ drive here. A. may B. can C. must D. will B D A

4.—Who’s the man there? Is it Mr Black? -- It _____ be him. He’s much taller. A. can’t B. mustn’t C. should D. may 5.--_____ we clean the classroom at once? -- No, you ______. You_______ clean it after school. A. Must; needn’t ; may B. Must; mustn’t can C. shall; can’t must D. Need; mustn’t; may B A