Unit 5 It must belong to Carla Section A 1

What kind of animal is it? It can’t be…… 可能性0% It might/could be… 可能性20-80% It must be … 可能性100%

Who is the singer? She may be.... No, I think she could be............ I know she must be

must can’t could might 100% probably true 20%-80% possibly true almost not true

Look at the picture. Write the things you see in the correct columns in the chart.

clothing Fun things Kitchen things hat volleyball plate jacket CD cups T-shirt toy car magazine book

Listen and match each person with a thing for the first time. 1b Person Jane’s little brother Mary Carla Deng Wen Grace Thing volleyball toy car magazine book CD

Listen again and the reason for each person with the thing. a. Hemingway is her favorite author. b. She loves volleyball. c. He was the only little kid at the picnic. d. She always listen to classical music. e. He loves cats. Jane’s little brother with a toy car Mary with a book Carla with a volleyball Deng Wen with a magazine Grace with a CD c a b e d

Practise making conversations Sample dialogue 1: A: Look! Whose toy car is this? B: It must be Jane’s little brother’s. Because he was the only little kid at the picnic.

Sample dialogue 2: A: Look! Whose book is this? B: It must be Mary’s. Because Hemingway is her favorite author.

Sample dialogue 3: A: Whose CD is this? B: It must be Grace’s. Because she always listens to classical music.

Let's guess A: It might be a man riding a horse. B: I agree. But it could also be a map of island.

It might be a vase. It could be two faces.

It might be a young woman. It could be an old woman.

Listen and write down the things in the backpack. 2a Things in the backpack __________________ 3. __________________ T-shirt hair band tennis balls

Listen again and fill in the blanks. 1. The person _____ go to our school. 2. The person _____ be a boy. 3. It _____ be Mei’s hair band. 4. The hair band _____ belong to Linda. 5. It ______ be Linda’s backpack. must can’t could might must

2c Practice. Check the answer: must/might can’t might must might/must

belong to someone和be someone’s 相同，都表示“属于某人”，“归某人所 有”，但要注意用法上的区别：belong to中 to为介词，后面需接名词或宾格代词；而 be someone’s 中的be动词，根据意思需要 后面要接名词的所有格形式或名词性物主 代词。如： The English book belongs to me. The English book is mine.

意思 推测程度 must may might /could can’t 一定，肯定 100%的可能性 may might /could 有可能，也许 20%---80%的可能性 can’t 不可能，不会 可能性几乎为零

一. can和could的区别和用法 1. can表示体力和脑力方面的能力, 或根据客观条件能做某种动作的“能力”。 例如： 　 Can you speak English？　　 　 Can you make a cake？ 　 can用在否定句和疑问句中时有时表示说话人的 “猜测”或 “不肯定”。

例如： 　 Can the news be true？ 　 (在日常会话中, can可代替may表示“允许”, may比较正式) 2. could是can的过去式, 表示过去有过的能力和可能性, 还有怀疑和不肯定的意思(在否定和疑问句中)。

e. g. 　　She couldn’t skate when she was five years old.　 （能力） 　　At that time we thought the story could be true. （可能性） could用来提问, 是有礼貌的请求 Could..., please?语气较为婉转。 Could I speak to Mr. Smith, please?

二. might和may的区别和用法: 1. may的用法: 　 a. 表示“允许”或“请求”。 e. g. May I come in?

　 在使用这一用法时需注意: may表示“允许”的否定形式是must not, 意思是“不应该” “不许可”。e. g. 　　—May I take this book out of the reading-room？ 　　—No, you mustn’t． b. 表示说话人的猜测，认为某一事情“或许”或“可能”发生。

e. g. 　 He may know the answer． c. may用在感叹句中可表示祝愿、愿望。 May you succeed. (祝你成功。) May you have a pleasant journey． (一路平安。)

2. might的用法: a. might可以代替may, 表示现在时间的动作，但语气较为婉转客气或更加不肯定。 e. g. 　 Might I take a suggestion？ 　 b. might用来表示现在时间时, 还可表示“规劝”。

e. g. 　　You might pay more attention to spoken English．

三. must与have to的区别 　 have to比较强调客观需要, must着重说明主观看法。另外have to能用于更多时态, 比较下面的句子：

We had to be there at 10:00. 有时两者都可以用, 意思差别不大。 e. g. We must/have to leave now. must在表示说话人对事物的推测时候要注意它比may肯定得多, 相当于汉语的“一定”或“准是”。(只有在肯定句中能这样用。)

　 This must be your room. 　 在回答由must引起的问题时, 如果是否定的答复，不能用mustn’t, 而需要用needn’t或don’t have to, 因为mustn’t是“一定不要”的意思。

各种"预测" 表示对某件事的确定程度，即表示推测 的时候，通常会用到情态动词must, may, might, could等。 按照推测的可能性来区别, must的可 能性最大, may次之。could和might不表 示过去时态, 只是表示推测的可能性比 较小。例如： It’s two o’clock now. He must be in by now. 现在是两点钟。 他一定到了。

He may go back in the fall. 他可能秋季回去。 He thinks it could / might be wise to try his luck there. 他想在那儿碰碰运气可能是明智的。 2. 情态动词表示推测的几种形式： 1）“情态动词+动词原形”表示对现在情况的推测。例如：

This book must be Tom’s. He is looking for it. 这本书一定是汤姆的。他正在找 这本书。 2）“情态动词+be +v- ing形式”表示对现 在正在进行的情况进行推测。例如： At this moment, our teacher may be correcting our exam papers. 此刻，我们老师可能正在批改试卷。

3）“情态动词+have+动词的过去分词”表示对过去情况的推测。 例如： The road is wet. It must have rained last night. 路是湿的，昨天晚上一定下雨了。