内容正文:
专题九
情态动词A131
专题九
情态动词
清点解词
)考点情态动词的基本用法
【辨析】must与have to
词汇
含义及用法
示例
must意为“必须”,表示说话人的主规意志和看
表示能力,“能,会”,其
I can play the guitar,but I
法;have to意为“不得不”,表示因客观原因,所以不
否定式是cannot-=(an'1
can't play the violin.
得已而为之。
can
表示允许,"可以”,“Ca
【典例剖析】
1…?”意为“我可以…
Can I go home now?
吗?”较口语化
(2020·新疆生产建设兵团)My classmate is
是can的过去式,表示
Lucy could swim at the age
jumping so far!I
believe my eyes.
过去的能力
of five.
A.shouldn't
B.needn't
could
表示较can更为委婉
Could you help me?
C.mustn't
D.can't
的语气
剖析:句意:我的同学跳得这么远!我
表示“请求许可”,意思
是“可以:可能”,其一般
相信自己的眼晴。shouldn't不应该:needn't不需要;
疑问句的否定回答为
-May I go out and play
may
football?
mustn't禁止:can'1不能。根据句意“我的同学跳得
might)
mustn't'cant。might是
my的过去式,语气比
-No,you mustn't.
这么远”可知,应该是“我简直不能相信自己的眼睛”。
my更委婉
故选D。
意为“应该”,表示按情
【对点演练】
You should go to see the
should
理应该如何,也可以表
(C)1.(2021·重庆B卷)一Excuse
me,can
示一种责任和义务
doctor.
borrow this book?
表示义务、命令或要
求,意思是“必须:应
You must be careful next
-Sure,but you
return it by the
time.
该”,否定形式为
end of this term.
musn't,意思是“不准,
You mustn't
take photos
here.
A.can
B.can't
不允许”,表示警告
C.must
D.mustn't
must
表示说话人的主观看法
I must go home now.
(D)2.(2021·连云港)What an amazing robot!It
对以must引导的一薇
Must I finish the homework
疑何句,肯定国答时用
cook more than 5.000 dishes.
must或have to:否定
today?
A.shall
B.need
回答时用needn't或
-No,you needn't/don't have
to.
C.must
D.can
don't have to
表示客观需要,意为
(A)3.(2021·扬州)We
see which way
have
“不得不:必须”,有人
He had to stay at home
to go if the stars do not twinkle(闪耀)so.
to
称、时态和数的变化,
because of the heavy rain.
A.cannot
B.should not
后跟动词藤形
C.must not
D.need not
作情态动词时意为
“需要”,常用于疑何
(C)4.(2021·温州)一Simon,I'm afraid we can't
He needn't come here.
句和否定句中
complete the model spaceship this afternoon.
need
对以necd引导的疑问
-Need I go there tomorrow?
-Well,we
finish it today.It's
句,肯定回答用must
-Yes,you must./No,you
fine if we give it to Mr.Wang tomorrow.
否定回答用needn't
needn't.
A.can't
B.mustn't
意为“最好”,没有人
had
You'd better have a good
C.needn't
D.shouldn't
better
称和数的变化,后最
动词原形
rest.
(A)5.(2021·武汉)-Only ten tickets?What do
表示请求、魂议等,
Would you pleas