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XX
同学寒假第<
/p>
X
次课教案
上
课日期
:________
上课时间：
__________
教师姓名：
_________
情态动词、趣味阅读
Grammar
情态动词（表达说话人对所述内容的情感和态度）
词义
在谓语中作用
实义动词
完整
单独作谓语
情态动词
不完整
和实义动词一起作谓语
助动词
无
帮助实义动词，构成时态、语态、语气、
否定、疑问
1
、表示能力
(1)
表示某人具有某种特定
技巧和能力
①
can
②
could
用于表示某人过去具有某种技巧和能力
(2) be
able to
“can”
和
“co
uld”
不能用来表示某人或某物在将来会有某种能力，但
“b
e able to”
可表达这个意思。
区别：
can
指本能，
be
able to
可以指本领。
练习（单项选择）
1.
A. computer ______ think for itself; it
must be told what to do.
A. can't
slow.
A. should
A. can; have to
B. must
B. may; can
C. will
C. have to; may
D. can
D. ought to; must
B.
couldn't
C. may not
D. might
not
2.
The World Wide Web is
sometimes jokingly called the World Wide Wait
because it _________be very
3.
Some aspects of a
pilot’s
job _______ be
boring, and pilots often______ work at
inconvenient hours.
ADB
2
、表示推测的可能性
must
may
might
can
could
表示必然会发生的事件。
表示某事有可能发生。且
may
较为正式。
can’t
couldn’t
may not
might not
表示某事肯定不会发生，或发生的概率为
0.
表示某事不可能是真的。
表示某事可能不是真的。
注意：
mustn’t
不是表示不可能，而是表示“禁止”，“不允许”。
以
May
或
Must<
/p>
开头的问句，需要注意其否定回答。
练习（单项选择）
1.
—
I heard they went skiing in
the mountains last winter.
—
It ________ true because
there was little snow there.
A. may be
not
B.
won’t
be
C.
couldn’t
be
D.
mustn’t
be
2.
—
Is John
coming by train
？
—
He
should
，
but he ____ likes
driving his car.
A. must
B.
can
C. need
D. may
3.
—
Isn't that
Ann's husband over there?
—
No, it _______ be him
—
I'm
sure he doesn't wear glasses.
A. can't
-No, you _________.
A.
needn’t
B. may
not
C.
can’t
D.
mustn’t
B. must not
C. won't
D. may not
4.
–
Must I finish my homework
now?
CDAA
3
、
“
许可
”
和
“
禁止
”
(1)
许可
①
can
表示某人被允许做某事或说话人允许某事发生。
②
may
用在比较正式的场合表示许可。
(2)
禁止
①
cannot
< br>表示比如由于规章制度或法律条文，某事遭到禁止。语气比
can’t
强烈。
②
may not
与
“cannot”
用法类似，但更正式一些。
③
should not
用于告诉某人某动作不可接受或不可取。
④
must not
用来更坚决地表示某事物不可接受或不可取。通常含有禁止的意思。
练习（单项选择）
1.
Johnny, you_________ play
with the knife, you________ hurt yourself.
A. won't; can't
C.
shouldn't; must
-No, you _________.
A. may not
B.
mustn’t
C. may
D.
wouldn’t
B. mustn't; may
D. can't;
shouldn't
2.
-May I smoke
here?
BB
4
、表示必要性，必须做某事
(1)
must
：强调的是主观上，自己觉得必须做的事情。
(2) have to
：强调的是客观上，不得不去做的事情。
(3)must
来提问的句子的否定回答，可以用
needn’t
或
don’t have
to
来代替。
练习（单项选择）
1.
I _________ look after my sister
because she is too young to stay at home alone, so
I
can’t
go with you.
A. must
B. have
to
C.
mustn’t
D. can
B
5
、表示应该做某事
should
和
ought to
①
should
和
ought
to
表示应当、应该，前者比后者语气轻，后面都加动词原形。
如：
You should / ought to work
hard.
②
should / ought
to
的否定形式表示禁止之意。
如：
Children shouldn’t
smoke.=Children ought not to smoke.
③
should
和
o
ught to
的区分：
shoul
d
可表示陈述意见，推出建议或请求；而
ought
to
可以表示劝告之意。
如：
You ought to respect your
parents.
He suggested that they
should leave at once.
练习（单项选择）
1.
—
Shall I tell John about it?
—
No, you _____.
I’ve
told him already.
A.
needn’t
A. must
B.
wouldn’
t
B. can
C.
mustn’t
C. need
D.
shouldn’t
D. may
2.
—
Is John
coming by air?
—
He should,
but _____ not. He likes taking trains.
3.
—
_____ it be
Li Ping who broke the glass?
—
No. It _____ be Wang Hai
who did it.
A. Could; man
A.
mustn’t
A. must
B. Can; can
B.
can’t
B. can
C. May must
C.
won’t
C. should
D. Can must
D. may not
D. have to
4.
I’ve
decided to take the job
and I _____ change my mind.
5.
My parents never remember my telephone
number, and they always _____ look it up.
6.
—
What will the
weather be like tomorrow?
—
It_____ be rainy, cloudy or
sunny. Who knows?
A. must
B.
might
C. shall
D. should
7.
—
Whose T-shirt
is this?
（
2014
二中期
中考）
—
It _______ be
John’s.
It’s
_______ small for him.
A.
mustn’t;
too
much
B.
mustn’t;
much too
C.
can’t;
too much
D.
can’t;
much
too
8.
一
____ I go
swimming with Dad , Mum?
—
No, you
needn’t.
You can go bike
riding.
A. Must
ADDBDBBA
B. May
C. Would
D. Can
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