内容正文:
情态动词
Modal Verb
Will/ Would you please pass me the ball, please?
您能递给我这个球吗?
Would you like to go with me?
你想和我一起去吗?
4.will, would的用法
-will表示请求、建议等,would更委婉。
5.should的用法
1.表达义务、职责等,应当..
I think today’s children should really learn to respect their elders.
我认为当今的孩子应该好好学习尊敬长辈。
1). need 作情态动词用时, 常用于疑问句、否定句。
You needn’t come so early. 你不必这么早来。
--- Need I finish the work today?
我有必要今天完成作业吗?
--- Yes, you must. 是的,你必须。
(No, you needn’t.)(不,你不必。)
6、need
2)need作实义动词用时,有人称、时态和数的变化
need后面只能接带to的不定式
He needs to finish his homework today. 他今天需要完成作业
3). need后面接doing表示被动:need doing = need to be done.
The washing machine needs repairing. = The washing machine needs to be repaired.
常用问答语
--May I have a dance with you?
--Yes, you may.
--No, you mustn‘t/can’t/may not.
May的肯定回答是 yes,主语加 may
否定回答是 no 主语加 mustn’t/can’t/may not.
--Can you feel my heart?
--Yes, I can.
--No, I can't.
--Yes, I can.
--No, I can't.
Can肯定回答是,yes ,主语加 can
否定回答,no 主语加can’t
--Must I reply to you right away?
--Yes, you must./
--No, you needn't./ you don't have to.
--Need I get you a glass of water?
--Yes, you must./
--No, you needn't./ don't have to.
Need 肯定回答Yes, 主语+ must
否定回答主语+needn't./ don't have to.
Must ,肯定回答Yes, 主语+ must.
No, 主语 +needn't./ 主语+don't have to.
1.—Excuse me,can I borrow this book?—Sure,but you ________ return it by the end of this term.A.can B.can'tC.must D.mustn't
当堂练习
单项选择题
2.—Simon,I'm afraid we can't complete the model spaceship this afternoon.—Well,we ________ finish it today.It's fine if we give it to Mr Wang tomorrow.A.can't B.mustn'tC.needn't D.shouldn't
3.—May I fish here?—Sorry,you ________ .Look at the sign “No fishing”!A.may B.mustn'tC.can D.needn't
4.—Must we clean the classroom now?
—________ .You can clean it after school.
A.Yes,you must
B.Yes,you can
C.No,you needn't
D.No,you mustn't
5.We ________ try our best to fight against pollution.
A.should
B.may
C.mustn't
D.needn't
6.—Nick,________ you like to join us to the museum?
—Why not? Let's go.
A.can
B.could
C.would
D.must
7.—Hey,boys! Do you know whom the running shoes belong to?
—Hello,Mr Clark.They ________ be Jessica's.She often wears such shoes in our class.
A.must
B.can't
C.would
D.needn't
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