新概念英语第一册 Lesson 127
一、核心知识点
1. must 表肯定推测
含义：一定、想必（根据事实做出有把握的推论）
结构：must + 动词原形
例句：It must be Karen Marsh, the actress.
You haven't eaten all day. You must be hungry.
2. so 肯定赞同
I thought so. 我也这样想。
同类：I hope so.
/ I guess so.
/ I suppose so.
否定：I don't think so.
/ I didn't think so.
我不这样认为。
3. can't 表否定推测
含义：不可能（must 推测的否定形式）
例句：That can't be a shark. It's too small.
4. have a look 短语
have a look 看一眼
have another look 再看一眼
例句：Let me have another look.
Can I have a look at your new phone?
5. Doesn't 加强语气
例句：Doesn't Karen Marsh look old?
6. look 作系动词
用法：后接形容词，表示“看起来……”
例句：This cake looks delicious.
7. that 作副词
含义：那么、那样
例句：The park isn't that far.
8. more than / not more than
more than 超过；not more than 不超过
例句：I'm not more than 29 myself.
9. myself 反身代词
含义：我自己
例句：I made this cake myself.
二、练习题
（一）、根据中文写单词
1. 著名的________
2. 女演员________
3. 男演员________
4. 通过阅读得知________
（二）、选择正确答案
1. I'm sure he must ______ outside now.
A. play B. be playing C. plays D. played
2. He ______ a teacher, he must be a dentist.
A. can't be B. may not be
C. mustn't be D. have to be
3. Let me have ______ look.
A. / B. another C. the D. an
4. -Karen Marsh fell off ______ bike yesterday.
-Did she hurt ______?
A. her; her B. herself; her
C. her; herself D. herself; herself
（三）、用所给动词的适当形式填空
1. Somebody wants ______ (see) you, Mr Smith.
2. I'll go out and ______ (take) a walk in the park.
3. John usually ______ (watch) TV at night.
4. Where ______ they ______ (put) their bikes yesterday.
5. What ______ they ______ (do) now.
三、练习题答案
（一）、单词
1. famous
2. actress
3. actor
4. read
（二）、选择题
1. B
2. A
3. B
4. C
（三）、动词填空
1. to see
2. take
3. watches
4. did; put
5. are; doing
新概念英语第一册 Lesson 128
一、核心知识点
情态动词 must be / can't be 表推测
1. must be：表示肯定推测，意为“一定、肯定”
2. can't be：表示否定推测，意为“不可能”
3. 用法（针对现在、正在进行、将来的推测）：
- 对现在状态推测：
must be / can't be
例：She must be British. She speaks English with a British accent.
例：He can't be at home now.
- 对正在进行推测：
must be doing / can't be doing
例：Lily must be playing the piano.
例：He can't be working in the office.
- 对将来推测：
must be / can't be
例：It must be sunny tomorrow.
例：He can't be here tonight.
二、练习题
(一)、圈出正确答案
1. This actress ______ at least 45 years old. Look at the wrinkles on her face.
A. must be B. would be
C. can be D. must
2. She ______ be forty. She looks very young.
A. mustn't B. must C. can't D. can
3. He speaks French perfectly. He ______ be French.
A. mustn't B. must C. can't D. can
4. Listen! Someone ______ the piano in the music room.
A. must play B. must be playing
C. can play D. can be playing
(二)、用 can / must / can't / mustn't 填空
1. Smoking ______ (可能) be harmful to health.
2. I ______ (必须) finish my work before six.
3. Books ______ (禁止) be taken out of the room.
4. The news ______ (不可能) be true.
5. It's already eleven o'clock. She ______ (一定) be sleeping.
三、练习题答案
(一)、选择题答案
1. A
2. C
3. B
4. B
(二)、填空题答案
1. can
2. must
3. mustn't
4. can't
5. must
