She doesn’t need / have to leave early. She needn’t leave early.
Does she have to leave early? Must she leave early? Yes, she must. No, she needn't .
这是 否定疑问句， 表示邀请。
你难道不能过来帮帮我吗？ Eg:Can’t you come and help me? 1. come – came – come 来
come in 进来 其反义词是 go out
2. have tea 喝茶 (这里的have相当于drink)
3. water the garden 浇水
4. You must catch cold if you don't put on more clothes
5.You have to work hard to make a living.
肯定句 否定句 一般疑问句
She has to leave early. She must leave early.
6. look at = have a look at
• SUSAN: What a nuisance!
• PETER: Last summer it was very dry, too. Don't you remember? I had to water it every day.
多美的花园啊！ Eg: What a beautiful garden it is !
Lesson 125 Tea for two
Cook
Take a taxi
Get up Water the garden/ flowers
Tea for two
• SUSAN: Can't you come in and have tea now, Peter? • PETER: Not yet. I must water the garden first.
表示含有客观的环境方面的需要， 除了“必须”之外，还有“不得 不”
有时态和人称的变化 I have to / he has to
Eg:I must work hard. 我必须努力工作。 (我觉得有必要这么 做。)
I had to go home by ship last night.我昨晚不得不乘船回 家。(有可能没有赶上其他的航班或者火车，没选择才坐船。)
I must water the garden first. Do you have to water it now?
I had to water it every day.
Grammar
must
have to
表示主观的认为有必要，有义务
没有时态和人称的变化 I must /he must /she must
• SUSAN: Do you have to water it now? • PETER: I'm afraid I must. Look at it! It's terribly dry.
4. have to 不得不
5. be afraid + (that)宾从句 恐怕… be afraid to do sth. 害怕做某事 be afraid of + n. / doing sth. 害怕…
请完成你的家庭作业 Eg: Please finish doing your homework.
9. look out of 向外看 look out 小心，当心
• SUSAN: It's raining! That means you don't need to
water the garden. • PERTR: That was a pleasant surprise. It means I can
have tea, instead.
10. mean – meant – meant 11. need to do sth 需要做某事（need在肯定句中做为 实意动词） 12. instead of / instead 代替
Tom代替我画了一张画 Eg:Tom drew a picture instead of me.
=How beautiful the garden is ! What a nuisance! =How nuisance it is! 7. What + a/an + n (名词单数）＋ 主 ＋ 谓 What + n.(名词复数/不可数）＋ 主＋谓
=How + 形容词/副词＋主＋谓
Exercise
A. What B. What an C. How D. How a
4. ____ sunny day! Let’s go out for a walk.
A. How a B. How C. What a D. What
5. ____ hard work it is!
A. How
B. What C. What a D. What an
1.You ______ have left your umbrella in the theatre.
2. His car is still here. He ______have gone by bus.
3. I _______ cook by myself because of my parents are not at home.
• SUSAN: Well, I'll have tea by myself.
• SUSAN: That was quick! Have you finished already? • PETER: Yes. Look out of the window.
8. finish doing sth. 完成某事
1. ____ nice watch it is! A. How B. Wh a
2. ____ bright girls they are!
A. What B. What a C. How
D. How a
3. ____ interesting the film is!