BOOK ONE · LESSON 128

He can't be... He must be... 他不可能…… 他肯定是……

他不可能…… 他肯定是……

A picture lesson on the modal verbs for deduction: 'can't be' (negative certainty) and 'must be' (positive certainty). Eight pictures show deductions about a man's condition, a hat, a woman's nationality, a man's job, ages, a date, family birth order and what a man is doing. The lesson introduces written exercises on rewriting 'must' sentences with 'has to' or 'I think he is probably...', and writing new sentences with 'can't be' and 'must be'. The workbook drills writing deductions with 'can't be' and 'must be' and agreeing with tag questions; the grammar workbook completes sentences with 'can't' or 'must' and answers questions following the model.

128 / 144 LESSONS3 PARTSREAD · WRITE · PRACTISE

READ & UNDERSTAND

Lesson 课文

Listen to the tape and answer the questions. 听录音并回答问题。

听录音并回答问题。

Eight numbered pictures in a 4x2 grid: 1 a man asleep in a chair with two women looking at him; 2 a woman holding a hat; 3 three people talking; 4 a man with a medical bag; 5 three women; 6 a woman pointing at an April calendar; 7 a family group with a man and children; 8 a man asleep with two women. — l128-pictures

1. He can't be ill. He must be tired.
2. It can't be my new hat. It must be my old one.
3. She can't be Danish. She must be Swedish.
4. He can't be a dentist. He must be a doctor.
5. She can't be forty. She must be fifty.
6. It can't be the 20th. It must be the 21st.
7. He can't be the youngest. He must be the oldest.
8. He can't be reading. He must be sleeping.

1. 他不可能生病了。他肯定是累了。
2. 那不可能是我的新帽子。那肯定是我的旧帽子。
3. 她不可能丹麦人。她肯定是瑞典人。
4. 他不可能牙医。他肯定是医生。
5. 她不可能四十岁。她肯定五十岁了。
6. 那不可能是二十号。那肯定是二十一号。
7. 他不可能是最小的。他肯定是最老的。
8. 他不可能在阅读。他肯定在睡觉。

Listen and answer the questions

Listen to the tape and answer the questions. 听录音并回答问题。

听录音并回答问题。

One question per picture (8 pictures); the answer is the spoken deduction from the picture captions.

1What's wrong with him? (Picture 1)

2Whose hat is it? (Picture 2)

3Where is she from? (Picture 3)

4What is his job? (Picture 4)

5How old is she? (Picture 5)

6What's the date? (Picture 6)

7Where does he come in the family? (Picture 7)

8What is he doing? (Picture 8)

New words & expressions 生词和短语

dentist /'dentist/: n. 牙医
probably /'prɔbəbli/: adv. 很可能，大概

Written A: Rewrite these sentences

模仿例句，使用 has to 或 I think he is probably... 改写以下句子。

7 rewrite items; 2 examples printed on the page (He must be home before six o'clock. → He has to be home before six o'clock. He must be tired. → I think he is probably tired.).

1He must be here at six o'clock.

2He must be busy.

3He must be at the office early tomorrow.

4He must be sleeping.

5He must be French.

6He must be in France next week.

7He must be an engineer.

Written B: Write new sentences

模仿例句改写下列句子。

20 rewrite items; 1 example printed on the page (I think she's Danish. (Swedish) → I don't think so. She can't be Danish. She must be Swedish.).

1I think she's Italian. (Greek)

2I think he's English. (American)

3I think they're Canadian. (Australian)

4I think he's a mechanic. (engineer)

5I think he's a bus conductor. (bus driver)

6I think he's a sales rep. (the boss)

7I think he's twenty-four. (thirty)

8I think they're five. (seven)

9I think he's seventy-six. (over eighty)

10I think she's fifty-five. (under fifty)

11I think it's the 21st today. (20th)

12I think it's Tuesday today. (Wednesday)

13I think it's the 2nd today. (3rd)

14I think it's cheap. (expensive)

15I think it's easy. (difficult)

16I think she's old. (young)

17I think they're early. (late)

18I think he's reading. (sleeping)

19I think they're listening to the radio. (watching television)

20I think she's retiring. (looking for a new job)

MAKE IT YOUR OWN

Practice 练习

Practice A: Must be and can't be

Use the prompts to write the answers. 根据提示写出答案。

根据提示写出答案。

8 items writing deductions with 'can't be' and 'must be'; item 1 (Japanese / Chinese) is the printed example.

1Do you think she's Japanese? (Chinese)

No, I'm sure she can't be Japanese. She must be Chinese.

2Is it Thursday today? (Friday)

3Do you think those men are Greek? (Italian)

4How old do you think he is? Twenty? (About twenty-five)

5She's an actress, isn't she? (Shop assistant)

6Is it the 13th today? (The 14th)

7They're drinking wine, aren't they? (drinking beer)

8Do you think he's buying that car? (just looking at it)

Practice B: Agreeing with tag questions

Agree with what the person says. 同意说话者的说法。

同意说话者的说法。

6 tag-question items; items 1 and 2 are the printed examples.

1Karen looks old.

Yes, she does, doesn't she?

2She doesn't look very young.

No, she doesn't, does she?

3She's a good actress.

4But she isn't very famous.

5She can speak English very well.

6But she can't speak French.

BUILD YOUR FOUNDATION

Grammar 语法练习

Grammar I: Fill in the blanks with 'can't' or 'must'

用 can't 或 must 填空。

10 fill-in items choosing between 'can't' and 'must'; some items have two blanks.

1You are going to Paris? You ___ be serious! You ___ be joking!

2He looks very young. He ___ be over thirty. It ___ be because he has two big boys.

3The ambulance is in a hurry. Someone ___ be seriously ill.

4It can't be Friday today. I came here on Monday and I've only been here for three days. You ___ be wrong.

5I don't believe it. It ___ be true. You ___ be dreaming.

6What did he say about her? He ___ mean it. He ___ be joking.

7It ___ be ten o'clock, can it? I feel we've only been here for half an hour. Your watch ___ be fast.

8I think the answer is yes. You ___ be right.

9Did you say he is English? He ___ be from England. He looks like an Indian. He ___ be from Asia.

10It's the 13th tomorrow, so it ___ be the 12th today.

Grammar II: Answer the questions according to the example

仿照例句回答下列问题。

10 answer items; item 1 (Holland / Russia) is the printed example. Each answer uses 'can't be' and 'must be'.

1Where do you think he is from? Is he from Holland? (Russia)

No, he can't be from Holland. He must be from Russia.

2Who do you think that is? Is it Jack? (Mike)

3What do you think his job is? Is he a lawyer? (artist)

4Where do you think she lives? Does she live near the school? (a long way from the school)

5Where do you think Ann is? Is she at home? (at the office)

6What do you think they are doing now? Are they working? (playing)

7What time do you think it is now? Is it two o'clock? (three o'clock)

8Which umbrella do you think is hers? Is it the red one? (yellow one)

9Which month is it? Is it December? (August)

10How old is he? Is he fourteen? (eighteen)

BACK TO THE BOOK

Original sources 原始资料

Open the original pages to compare your work. 点击链接查看原文。

A little practice, every day. 每天一点，慢慢积累。