内容正文:
专题三
情态动词
语法知识理重点
表能力:can,can't,could,couldn't
表主观看法:must
表禁止:mustn't
基本用法
表请求:may,might,shal,wil,would
表(不需要:need,needn't
情态动词
表建议:should,shouldn't had better
表客观:have to,don't have to
表肯定推测:must>can>could>may>might
表推测
表否定推测:cant>may not
多重点语法分点过
考点)情态动词的基本用法
续表
词(组)】
名义及用法
词(组)
含义及用法
表示能力,意为“能:会”,可与be able to
表示请求或征求对方的意见,多用于第一、
shall
互换
三人称,构成疑问句
can
need
表示“需要”,主要用于否定句和疑问句中
表示请求、允许,意为“可以”,多用于口
语中
needn't
意为“不需要:没必要”
“应该”,表示劝告或建议,也可以表示要求
表示能力,意为“不能:不会
should
或命令,往往表示说话者的观点
can't
表示拒绝对方的请求或不同意/不允许,意
表示征询意见,常用于疑问句中
为“不能”
shouldn't should的否定形式,意为“不应该"”
can的过去式,表示过去的能力,意为
had
could
“能:会”
表示劝告或建议,意为“最好”,多用于第二
better
人称,否定形式为had better not
在疑问句中表示委婉的请求
表示客观必要,意为“不得不:必须”,有人
couldn't
could的否定形式,意为“不能:不会
have to
称、时态和数的变化,有时可与mus互换
表示主观看法,意为“必须:一定”,多指将
must
don't
来的情况
意为“不需要:不必”
have to
mustn't
must的否定形式,意为“一定不要:禁止”
表示询问、请求,意为“将要:将会”,常用于
will
表示请求,许可,意为“可以”
第二人称
may
用于祈使句,表示祝福或祝愿,用法和wsh
w训的过去式,用于提出建议或邀请,语气
相似
比will更委婉
would
may的过去式,表示征求对方的意见,语气
表示自愿做或主动提出做某事,如意志、愿
might
比may更委婉
望或决心等
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拓展
续表
(1)由Must引导的一般疑问句,肯定回答用
词(组)
含义及用法
“Yes,主语+must/have to.”:否定回答用“No,主语
+needn'/dom't have to.”,不能用mustn't回答。
“能”,用于肯定句,表示很有可能,
(2)由Could引导的一般疑问句表示委婉的请
can/could
语气缓和,较委婉,could的可能性比
求时,回答用can而不用could。
can要弱
(3)由My引导的一般疑问句表请求时,肯定回
“有可能:也许”,用于肯定句,表示
答用“Yes,主语+may.”:否定回答用“o,主语+
may/might
把握不大的推测,语气缓和,较委婉,
mustn'/can't.”
might的可能性比may要弱
考点☑情态动词表推测
“可能不”,用于否定句,表示否定推
may not
词(组)
含义及用法
测,语气不确定
“一定:肯定”,用于肯定句,表示非
“一定不:不可能”,用于否定句,表
must
can't
常有把握的肯定推测
示否定推测,可能性几乎为零
令语法专题情境练
单项选择
her is able to do it.
1.[2024呼和浩特,4]一Must I come before6:00
A.might
B.must
C.need
D.mustn't
tomorrow morning?
7.We never know what B happen in the future,
-No,you B The meeting will begin at
but we can prepare for the worst and hope for the
8:00.
best.
A.mustn't
B.needn't C.can't
D.shouldn't
A.must
B.might C.need
D.should
2.[2023呼和浩特,2]In most museums,there is no
8.-D you play the piano,Mary?
shouting and no running,and you D touch
Yes,I can.I started to learn it at the age of 6.
anything.
A.Must B.Need C.Will
D.Can
A.couldn't B.can't
C.needn't D.mustn't
9.-Excuse me,B you please tell me where the
3.All the visitors C show their ID cards,or they
nearest bus stop is?
are not allowed to enter.
-Sure.Turn right at the first crossing.It's on
A.can
B.can't
C.must
D.mustn't
your right.
4.-Is it important to protect wild animals,Billy?
A.must
B.could
C.should
D.need
-Yes.If we don't protect them,they
A die
10.-Money doesn't mean everything.
out one day.
-I agree.We
A buy health or true
A.may
B.need
C.can't
D.shall
friendship.
5.You C return the book today,you may give it
A.can't
B.shouldn't
back in a week.
C.needn't
D.mustn't
A.mustn't
B.can't
11.-Where is our headmaster?
C.needn't
D.shouldn't
-I don't know.But she B be at the office.
6.-The paper cutting is pretty lively.Who made it?
The door is locked.
-It B be Amy.Nobody in our class except
A.needn't B.can't
C.can
D.need
请完成《情境作业本》(P49)中的练习题
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