(共31张PPT)
中考语法复习—情态动词
Grammar—Modal Verbs Made by Mia
目 录
Contents
一、情态动词的那些事儿
二、情态动词的那些一般用法
三、情态动词的那些推测用法
四、情态动词的那些特殊用法
情态动词的那些词儿
may might
can could
will would
must mustn't
need needn't
had better
used to
情态动词的那些特点
Cai Xukun can dance well.
Wu Xuanyi can dance well too.
But Yang Chaoyue can’t dance well.
3. 有助动词的作用
1. 不能单独作谓语,必须与动词原形连用
2. 没有人称和数的变化
May I go to the Ball
Yes, you may.
Yes, you can.
may might
1. 请求获得对方的允许,“可以”might (委婉语气)
肯定--may/can
No, you mustn’t.
No, you can’t.
否定--mustn’t/can’t
ball 舞会
may might
The prince may fall in love with you at first sight.
2. 肯定句中表示推测,意为“可能”
fall in love with... at first sight
一见钟情
may
May you have a wonderful time!
3. 意义:用于祈使句,表示祝愿。
may
意义:用于祈使句,表示祝愿。
May you be happy!
can could
1. 表请求和允许,意为“可以”= may;could (委婉语气)
Could I dance with you
Yes, you can.
回答:
肯定--can
否定--can’t
can could
2.表具备某种能力:能,能够; could (过去的能力)
Cinderella could dance well in the past.
Cinderella can dance well now.
can could
2. 表推测,意为“可能”;常用于否定句和疑问句中
It can't be her.
can could
2. 表推测,意为“可能”;常用于否定句和疑问句中
must
表示义务,意为“必须,应该”
I must leave right now.
must
Must I do the housework
No, you mustn't
Yes, you must
No, you don't have to
or
No, you needn't
must
否定mustn’t, “禁止”
否定回答用 needn’t
No, you needn’t.
No, you don’t have to.
Must I do the housework
Yes, you must.
must
2. 表示推测,意为“肯定”
She must be the girl I'm looking for!
need 需要
作实义动词:need to do sth
用助动词提问或者引起否定
2. 作情态动词:need do sth
否定形式为:needn't
I need to go to bed early.
I don't need to go to bed early
Do you need to go to bed early
I need do homework right now.
I needn't do homework right now.
Need I do homework right now
Yes, you must.
No, you needn't.
will would
用于第二人称的疑问句中,表“请求、建议”等; would (委婉)
用于表示意志,意愿或决心,意为“会,愿意”。
will指现在,而would指过去。
Will you marry me
Yes, I will.
I will love you forever.
shall should
1.征求对方意见、询问,用于第一,第三人称疑问句中
shall
Shall we hold our wedding this Sunday
Ok.
shall should
意为:应该。
表达义务,职责(说话人的观点)
should
As human, we should be kind to others.
Practice makes perfect
A. needn’t
B. can’t
C. mustn’t
1. --Must he sing the song in English
--No, he _____.
Practice makes perfect
A. needn’t
B. can’t
C. mustn’t
1. --Must he sing the song in English
--No, he _____.
Practice makes perfect
A. needn’t
B. can’t
C. mustn’t
1. --Must he sing the song in English
--No, he _____.
情态动词那些推测用法
03
PART THERE
may (might)
can (could)
must
can't may/might/could must
用于肯定句
“可能”
might (可能性更小)
could (可能性较小;可用于肯定句,疑问句,否定句)
0%
50%
100%
<
用在肯定句中
“一定”
用于否定句
“不可能”
<
guessing game
Who is this
It __________ be Fan Bingbing.
It __________ be Guo jingming.
It __________ be Wang Baoqiang.
It’s a he.
It’s not very tall.
He played as Tang Ren in the movie Detective Chinatown.
Practice makes perfect
1. The girl in the classroom ______ be Sarah. She has gone to the library.
A. may
B. must
C. can’t
D. needn’t
情态动词那些特殊用法
04
PART FOUR
used to do
be/get used to doing
had better do
情态动词的那些特殊用法
意义
used to do
be/get used to doing
过去常常做某事
习惯于做某事
Obama used to eat hamburger,
but now he is used to eating spicy bar.
情态动词的那些特殊用法
had better
had better do 最好做……
had better not do 最好不要做……
You’d better work hard in middle school.
表达“建议”和“忠告”,
had better do“为好”,
建议某人“最好不……”,
要用had better not do。