情态动词虚拟语气精练
1．—My Dear! I've just missed the lecture. —That's too bad．I'm sure you
it if you had got up earlier．
A．could have caught
B．had caught
C．would catch
D．could catch
2．However, the Policy
only be successful if more actors are involved in the process including civil society which needs political and financial support．
A．may
B．must
C．can
D．shall
3．As we know, the book
be taken out of the room without the teachers' permission．
A．needn't
B．mightn't
C．won't
D．can't
4．I
the work
be completed ahead of time if we ask more people to help us．
A．can
B．need
C．must
D．may
5．If you won't keep quiet, you
get out．
A．dare
B．can
C．ought
D．need
6．I hate it when it
be quite windy there, especially in spring．
A．will
B．could
C．might
D．can
7．If you
go out of the earth-quaking area, you
protect yourself well．
A．不填; may
B．won't; should
C．won't; 不填 D．should; won't
8．If it is the first day of the college entrance examination today, tomorrow
be the second one, don't fear．
A．will
B．shall
C．may
D．can
9．If he says that he'll come here sooner or later, he
．
A．may
B．need
C．shall
D．will
10．The teacher spoke so fast that I
follow him．
A．wouldn't
B．shouldn't
C．couldn't
D．mightn't
11．He
sit there for a whole day while playing games in front of the computer．
A．shall
B．will
C．need
D．dare
12．It's too hot,
I open the window?
A．will
B．shall
C．dare
D．can
13．—
you like to see a film named “If You Are The One”（非诚勿扰）with me?
Yes, I'd like to．
A．Will
B．Would
C．May
D．Might
14．All living things
die without the sun．
A．will
B．shall
C．can
D．must
15．The car is very old and not stylish now, therefore it
start．
A．can't
B．mustn't
C．shan't
D．won't
16．The blind lady
sit at the door waiting for her son coming back．
A．would
B．should
C．used to
D．could
17．It is strange that you
think that I did it．
A．must
B．should
C．could
D．may
18．When
my brother be able to leave hospital?
A．need
B．can
C．may
D．shall
19．If you don't work hard, you
fail again．
A．need
B．can
C．shall
D．must
20．—Must we hand in our exercise-books now? —No you
．
A．mustn't
B．shouldn't
C．needn't
D．couldn't
21．They
be having a meeting, but I'm not sure．
A．can
B．might
C．must
D．may
22．The lecture isn't interesting, I really
go now．
A．must
B．have to
C．should
D．shall
23．—Might I watch TV before homework, Mum?
—No, you
．
A．shouldn't
B．couldn't
C．mustn't
D．mightn't
24．—
I rewrite the article, teacher?—Yes, you must．
A．Need
B．May
C．Can
D．Might
25．I asked him many times , but he
speak of it．
A．daren't
B．daren't to
C．didn't dare to
D．didn't dare
26．—Hurry up, please!—Oh? There is plenty of time left, so you
．
A．couldn't have hurried
B．needn't have hurried
C．mustn't have hurried
D．didn't need to hurry
27．If she had taken my advice, she
in the examination．
A．wouldn't fail
B．wouldn't have failed
C．failed
D．had failed
28．If he
go home, he would be happy．
A．should to
B．was
C．were to
D．did
29．
it rain, it wouldn't be far too hot．
A．Might
B．Would
C．Could
D．Should
30．
Japan nuclear leak, robbing salt wouldn't have taken place in China．
A．But for
B．But also
C．But that
D．Except for
31．She wasn't feeling well,
she wouldn't have left the meeting so early．
A．but
B．and
C．or
D．then
32．I wish I
fly to the moon in a spaceship one day．
A．need
B．dared
C．could
D．should
33．The teacher suggested that we
the blackboard in advance．
A．should cleans
B．clean
C．be cleaned
D．cleaned
34．She insisted that the seats
at once．
A．be booked
B．should book
C．book
D．booked
35．It's natural that we
clean the classroom every day．
A．will
B．can
C．should
D．must
36．It has been decided that the sports meet
put off till next week．
A．could
B．might
C．would
D．should
37．Frankly speaking, I'd rather you
say how silly he was．
A．don't
B．didn't
C．won't
D．can't
38．It's about time that we
part in the college entrance examination．
A．took
B．take
C．should take
D．will take
39．He took his raincoat with him for fear that it
．
A．rained
B．should rain
C．would rain
D．might rain
40．—Who do you know he is?—Sorry, but he speaks as if he
a leader．
A．is
B．had been
C．were
D．are
41．—It is not to easy to make a lesson lively —I think you
as well ask for the advice from the skillful teacher．
A．may
B．can
C．need
D．must
42．—May I drop in on a friend on my way back from Beijing?—No, you
; a lot of work here waits for you．
A．mustn't
B．may not
C．needn't
D．shouldn't
43．You
not speak because he is sleeping．
A．had better
B．would better
C．have better
D．will better
44．I
say you're looking much more healthy thanks to the new environment．
A．must
B．can
C．shall
D．will
45．— I have taken someone else's book by mistake．Is it Tom's?—It
be his．I'm using it．
A．won't
B．can't
C．needn't
D．mustn't
46．I didn't know your address; otherwise, I
you the second I got to Changsha．
A．had visited
B．would visit
C．should have visited
D．would have visited
47．The meeting was boring．If only I
to it．
A．had not gone
B．have not gone
C．did not go
D．can not have gone
48．No children
go out of home after eleven o'clock at night without the parents' permission．
A．will
B．must
C．may
D．shall
49．—You can keep it．—I
have! It's very kind of you．
A．mustn't
B．couldn't
C．can't
D．shouldn't
50．—How's your child Tom getting along with his study? Does he still rank the No.1?
—It
be, but he is ill recently．
A．will
B．would
C．should
D．must
51．I could have visited him, but I
his address．
A．couldn't have remembered
B．didn't remember
C．should have remembered
D．hadn't remembered
52．—Could I borrow your car?—Yes, of course you
．
A．might
B．can
C．could
D．may
53．Be careful when turning the corner, or you
．
A．might knock down
B．might be knocked down
C．must knock down
D．must be knocked down
54．—Peter has gone to work, but the light is still on at home．—He
to turn off it．
A．must have forgotten
B．might forget
C．could forget
D．should have forgotten
55．—You didn't tell your old classmate of the get-together?—No, because I
.He is not my close friend．
A．couldn't have
B．needn'thave
C．didn't need to
D．shouldn't have
56．—I will travel to Guilin tomorrow．—Wonderful．
you have a good trip!
A．Will
B．Must
C．May
D．Can
57．As the only invited foreigner, Mr.White
join us in the oral English yesterday．I wonder why he was absent．
A．should
B．supposed to
C．was supposed to
D．ought to
58．It is ridiculous that the naughty boy
sleep during class when his teacher is in class．
A．might
B．need
C．should
D．must
59．—Will you go out for playing?—No, I
．I have so much work to do．
A．mustn't
B．can't
C．needn't
D．won't
60．—I broke my leg when crossing the road yesterday．—Sorry, you
be too careful．
A． cannot
B．shouldn't
C．mustn't D．needn't
61．I was about to travel when it
rain．
A．must
B．can
C．need D．may
62．—I heard they traveled to Hong Kong last week．—It
true because there was no time for them．
A．may not be
B．won't be
C．couldn't be D．mustn't be
63．—Do you think he will succeed?—I
so, but I do now．
A．may never have thought
B．can't have thought
C．never thought D．mightn't think
64．—Bob and Mary gave the teacher exactly the same answer to the paper．—One of them
from the other．
A．must copy
B．must have copied
C．should copy D．should have copied
65．If he
not a student, I wouldn't order him to obey me．
A．were
B．was
C．had been
D．is
66．He is sometimes jokingly called the fool because he
be very slow to answer the question．
A．should
B．must
C．will
D．can
67．“The salary
be paid to the peasant workers, according to the agreement made by both sides,” said the judge．
A．may
B．should
C．must
D．shall
68．The iron
be struck while it is hot．
A．shall
B．can
C．will
D．ought to
69．After many years of practice, he
walk alone．
A．could
B．would
C．was able to
D．should
70．—I don' t mind lending you my bike．—You
．I've already borrowed one．
A．mustn't
B．may not
C．can't
D．needn't
71．—How much shall I pay for food?—You
．This free of charge．
A．shouldn't
B．can't
C．don't have to
D．mustn't
72．—Would you like to walk with me?—No, I
stay home．It's such a bad day．
A．can
B．ought to
C．had better
D．would rather
73．—The man stayed in lonely island for 16 years before he returned．—Oh, dear! he
a lot of difficulties！
may go through B．might go through
C．ought to have gone through
D．must have gone through
74．—Bob, I have bought the meal for you．—Thanks,Mum．You
it．I have grown older．
A．needn't do
B．needn't have done
C．mustn't do
D．shouldn't have done
75．—Where is Professor Li? I couldn't find him anywhere．—Well．He
have gone home — his car is still here．
A．shouldn't
B．mustn't
C．cann't
D．wouldn't
76．He must be in the dining hall,
he?
A．mustn't
B．can't
C．isn't
D．can
77．If I
get the laptop free of charge, I'd like to study online as much as possible．
A．would
B．could
C．had to
D．ought to
78．It is natural that Bob
to Canada but to New York
A．will not be sent
B．not be sent C．should be sent
D．should not send
79．There
be any problem about passing the college entrance examination through hard work．
A．mustn't
B．shan't
C．shouldn't
D．needn't
80．Let us keep silent,
？
Ashall we
B．will we
C．will you
D．may you
81．I
tell her the truth．
A．cannot help
B．cannot but
C．may not help
D．could but
82．When Peter asked Jim to the internet bar for QQ, he
going．
A．couldn't help
B．couldn't but
C．could help
D．just had to
83．—Shall I buy more food and drinks for the party?—No．We have prepared some．That
be quite enough．
A．had to
B．may
C．might
D．ought to
84．—Why weren't you present at the meeting yesterday?
—I
, but I had met an unexpected traffic jam．
A．had
B．would
C．was going to
D．did
85．The order came that the rescue team
to Japan for the earthquake soon．
A．would be sent B．should send C．be sent D．must be sent
86Children，keep silentWhoever can guess one of my puzzles
receive a prize”, the mother said．
A．might B．shall C．should D．would
87．—I didn't connect with him online last night．—I
, either, if he hadn't phoned me．
A．wouldn't B．wouldn't have C．didn't D．hadn't
88．Without the help of my neighbors, I
the thief that had broken into the room．
A．would catchB．would have caughtC．would not catch D．would not have caught
89Supposing I
the plane this morning, I'm sure I
over the Atlantic now．
A．had caught; would be flying
B．caught; was flying
C．had caught; would have flown
D．catches; will be flying
90．—If you had come earlier last Saturday, you
that foreigner．—Sorry, I caught a cold．
A．met B．had met
C．would met D．would have met
91．If he had been free, I could have had a drink with him．But he
all day．
A．worked
B．works
C．has worked
D．is working
92．
you tell me why they have divorced?
A．May
B．Must
C．Need
D．Could
93．You can't imagine that a little boy
steal so much QQ coins from the firm．
A．might
B．need
C．should
D．would
94．I heard they traveled to Hawaii last summer? —It
true, but I can't imagine it．
A．may be
B．will be
C．can be
D．must be
95．— Pardon？ I
write it down．—It's 36485669．
A．didn't
B．couldn't
C．don't
D．can't
96．The girl
go out for playing with us, but she isn't quite sure yet．
A．shall
B．must
C．may
D．can
97．You didn't let me help you．If we
the work too, you
it slowly．
A．did; didn't finish
B．did; wouldn't finish
C．were doing; wouldn't finish
D．had done; wouldn't have finished
98．The naughty boy demanded that he
to go on study the next week．
A．could permit
B．could be permitted
C．must permit
D．be permitted
99．FuYuanAi can clearly remember her experiences in the Match as though she
them just now．
A．were experiencing
B．experiences
C．has experienced
D．experienced
100．How I wish that we
together all day forever!
A．could stay
B．could have stayed
C．might stays
D．might have stayed
答案精析
1．【命题立意】本题以与过去事实相反的虚拟语气为选项，主要考查could+have+done与过去事实相反的假设虚拟语气。
【答案】A【解析】从句意看此处表示“本能赶上，实际没有”，与后面的if you had got up earlier所提供的句式可知是一种与已经发生的事实相反的假设，故A合适。
2．【命题立意】本题以can表示“可能性”的情况为选项，考查情态动词can的基本用法。
【答案】C【解析】句意：然而，如果更多的演员参与到这个包括公民社会所需要的政治和财政支持的过程，这项政策就可能有成效。故此处表示“可能性”。
3．【命题立意】本题以情态动词的否定句为选项，考查can't的基本用法。
【答案】D【解析】句意：正如我们所知，没有老师允许，你不可以将这本书拿出室外。此处can表示表示（允许、请求）可以符合句意；mightn't表示“可能不”与此处without the teachers' permision. 语境不吻合。
4．【命题立意】本题以情态动词的基本区别为选项，考查can的基本用法。
【答案】A【解析】句意：我认为这项工作能提前完成。此处can表示（可能性）可能,可能会符合句意；此处不是表示将来，故排除B，C；而是一种肯定句的猜测。
5．【命题立意】本题以情态动词的基本区别为选项，考查can的基本用法。
【答案】B【解析】句意：你如不保持安静, 就请你出去。此处句意表示“命令”。
6．【命题立意】本题以情态动词的基本区别为选项，考查can的基本用法。
【答案】D【解析】句意：我憎恨那里有时刮大风，尤其是春天。此处语境表示“刮大风的偶然性”。
7．【命题立意】本题以情态动词的表示有意识的行为为选项，考查will的用法。
【答案】B【解析】句意：如果你不愿意逃离地震区，你应该保护好你自己。此处will表示“意愿”可以用于条件从句。
8．【命题立意】本题以情态动词的表示有单纯将来为选项，考查will的用法。
【答案】A【解析】句意：如果今天是大学入学考试的第一天，明天将是第二天。此处will表示“将要……”表示单纯将来时，用于二、三人称。
9．【命题立意】本题以情态动词的表示猜测为选项，考查will的用法。
【答案】D【解析】句意：如果他说他迟早会回来，那么他一定会的。此处will表示 “一定……”依据上句表示肯定的猜测。
10．【命题立意】本题以情态动词的表示“能力”为选项，考查couldn't的用法。
【答案】C【解析】句意：老师说得太快了，以至于我跟不上他。此处语境表示“能力”。
11．【命题立意】本题以情态动词的表示“习惯；经常性；倾向性”为选项，考查will的用法。
【答案】B【解析】句意：玩游戏时他在电脑前一坐就是一天。此处表示一种“习惯性”行为，故答案B合适。shall用于第一人称。
12．【命题立意】本题以情态动词的表示征求对方意见，“……好吗；要不要”为选项，考查shall的用法。
【答案】B【解析】句意：天太热了，我打开窗子好吗？ shall用于第一、三人称。表示对对方进行提问。
13．【命题立意】本题以情态动词的用于第二人称表示征求对方意见或请求指示为选项，考查will与would区别。
【答案】B【解析】句意：你愿意和我一起去看非诚勿扰这部电影吗？是的，我愿意。would like to do…“愿意……”
14．【命题立意】本题以情态动词will用于各种人称表示习惯性或规律性语境为选项，考查will的用法。
【答案】A【解析】句意：万物生长靠太阳。由句意可知此处will的意思“总是；惯于”，表示的是一种自然现象，规律性的事情。
15．【命题立意】本题以情态动词will用于各种人称表示习惯性或规律性语境时，如果再否定句中则表示“某东西总是或老是有不妙的情况发生”为选项，考查won't的用法。
【答案】D【解析】句意：这辆车很旧了，现在也不时髦了，因此发动不起来了。由句意可知此处will的意思“总是；惯于”，表示的是一种自然现象，规律性的事情。
16．【命题立意】本题以情态动词would表示反复动作或某种倾向为选项，考查would的用法。
【答案】A【解析】句意：盲太太老是坐在门口等她儿子回来。由句意可知此处would的意思“老是；惯于”，表示的是过去规律性的事情。
17．【命题立意】本题以情态动词should表示令人惊奇的事为选项，考查should的用法。
【答案】B【解析】句意：好奇怪你竟然认为是我做的这件事。由句意可知此处should的意思“竟然”，符合语境。
18．【命题立意】本题以情态动词shall用于一、三人称的疑问句中，表示说话人征求对方的意见或向对方请示为选项，考查shall的用法。
【答案】D【解析】句意：我哥哥什么时候能出院？由句式人称可知此处shall的意思“向对方请示”，符合语境。
19．【命题立意】本题以情态动词shall用于第二、三人称的陈述句为选项，考查shall的用法。
【答案】C【解析】句意：如果你不努力的话，你会再次失败的。由语境可知此处表示“警告”，合适。
20．【命题立意】本题以情态动词must疑问句的回答为选项，考查need的用法。
【答案】C【解析】按照句意和must用法可知此处用needn't回答合适。
21．【命题立意】本题以情态动词might表示猜测用法为选项，考查might的用法。
【答案】B【解析】按照语境可知猜测，联系but I'm not sure 可知不确定，故B合适。
22．【命题立意】本题以情态动词must与have to比较为选项，考查must的用法。
【答案】A【解析】句意：演讲没趣，我的确现在必须走了。依据句意A合适。
23．【命题立意】本题以情态动词might疑问句为选项，考查might/may否定回答的用法。
【答案】C【解析】句意：—妈妈，我做完作业前可以看会电视吗？—不，不可以。按照句意和生活常识watch TV before homework，显然Mum是不会允许的。依据句意C合适。
24．【命题立意】本题以情态动词need为选项，考查need的用法。
【答案】A【解析】按照句意和need用法，A合适。
25．【命题立意】本题以情态动词dare为选项，考查dare的用法。
【答案】C【解析】按照句意语境时态可知是一般过去时的dare实意动词用法，故C合适。
26．【命题立意】本题以情态动词need+have done为选项，考查need的用法。
【答案】B【解析】按照句意语境you已经做了这事，故B合适。
27．【命题立意】本题以情态动词与过去事实相反的假设为选项，考查虚拟语气与过去事实相反的用法。
【答案】B【解析】按照句意语境可知虚拟语气，按照从句可知这是与过去事实相反的假设，故B合适。
28．【命题立意】本题以情态动词与将来事实的假设为选项，考查虚拟语气与将来事实相反的假设的用法。
【答案】C【解析】按照句意语境可知虚拟语气，按照主句“如果我回家的话”可知这是与将来事实相反的假设，故C合适。
29．【命题立意】本题以情态动词与将来事实的假设的省略句为选项，考查虚拟语气中条件句子中的if省略要将助动词前移的用法。
【答案】D【解析】按照此题句意“天就不会这么热了”。按照主句形式可知这是与将来事实相反的假设，按照if条件从句省略，可将should前移主语前，故C合适。
30．【命题立意】本题通过介词短语来构成含蓄虚拟语气为选项，考查虚拟语气中用介词短语表示假设构成的虚拟语气用法。
【答案】A【解析】按照句意“要不是……”语境可知虚拟语气，按照含蓄虚拟语气此处由介词短语 but for引起，故A合适。
31．【命题立意】本题通过连词来构成含蓄虚拟语气为选项，考查虚拟语气中用连词表示假设构成的含蓄虚拟语气用法。
【答案】C【解析】按照句意此处有“否则，要不然……”的意思，故可知虚拟语气，按照含蓄虚拟语气由连词或副词引起，故C合适。
32．【命题立意】本题以动词wish的宾语从句来构成含蓄虚拟语气为选项，考查虚拟语气在宾语从句中的用法。
【答案】C【解析】按照语境可知此处表示将来不太有把握实现的事情，故C合适。
33．【命题立意】本题以表示“建议”意思的动词suggest的宾语从句来构成虚拟语气为选项，考查虚拟语气在宾语从句中的用法。
【答案】B【解析】按照suggest的宾语从句来构成虚拟语气的语法要求，选B合适。
34．【命题立意】本题以表示“主张”意思的动词insist的宾语从句来构成虚拟语气为选项，考查虚拟语气在特定词宾语从句中的用法。
【答案】A【解析】按照insist的宾语从句来构成虚拟语气的语法要求，选A合适。
35．【命题立意】本题以主语从句的虚拟语气为选项，考查虚拟语气在主语从句中的用法。
【答案】C【解析】按照主语从句虚拟语气的语法构成，选C合适。
36．【命题立意】本题以形式主语从句的虚拟语气为选项，考查虚拟语气在形式主语从句中的用法。
【答案】D【解析】按照形式主语从句虚拟语气的语法构成，选D合适。
37．【命题立意】本题以would rather从句的虚拟语气为选项，考查虚拟语气在would rather固定结构中的用法。
【答案】B【解析】句意：坦率地说，我宁愿你现在没有说他很傻。按照would rather从句虚拟语气的语法构成，选B合适。
38．【命题立意】本题以It's（high/about/不填）time+ that从句的虚拟语气为选项，考查虚拟语气在固定句型中的用法。
【答案】A【解析】句意：到了我们考大学的时间啦。按照It's（high/about/不填）time+ that从句虚拟语气的语法构成，选A合适。
39．【命题立意】本题以for fear that从句的虚拟语气为选项，考查特定连词引导下的虚拟语气用法。
【答案】B【解析】句意：他随身带着雨伞以防下雨。按照for fear that从句虚拟语气的语法构成，选B合适。
40．【命题立意】本题以as if从句的虚拟语气为选项，考查特定连词引导下的从句中虚拟语气用法。
【答案】C【解析】按照as if/though引导的方式状语从句中虚拟语气的语法构成，选C合适，虚拟语气用were；从语境理解是假设，故排除A。B项是与过去事实相反的虚拟语气形式，与主句动词speaks所提示的时间信息不符。
41．【命题立意】本题以may as well do sth.为选项，考查情态动词的固定搭配用法。
【答案】A【解析】按照句意此处有“我认为你不妨还是向有这方面技能的老师咨询一下的好。”选A合适。
42．【命题立意】本题以may 引出的疑问句的否定回答为选项，考查情态动词基本用法。
【答案】A【解析】按照may 引出的疑问句的否定回答形式有can't/mustn't以及句意选A合适。
43．【命题立意】本题以had better为选项，考查情态动词基本用法。
【答案】A【解析】句意：你最好不要讲话因为他正在睡觉，按照had better+动词原形，表示“最好……”句式选A合适。
44．【命题立意】本题以情态动词为选项，主要考查must表示“一定、必须”意思。
【答案】A【解析】按照句意以及四个情态助动词的意思可知此处“一定、必须”合适。
45．【命题立意】此题设置了表示猜测的形式上的否定形式，主要考查情态动词表示猜测否定句式用法。
【答案】B【解析】依据I'm using it.“我正在用它”推出表示猜测的“不可能”，但形式上用can't表示。
46．【命题立意】此题设置了特殊连词otherwise句子中的虚拟语气为选项，考查特殊连词otherwise用法。
【答案】D【解析】依据otherwise在句子中的意思和句子时态为过去时来判断虚拟语气。
47．【命题立意】此题设置了特殊连词if only从句中的虚拟语气，考查特殊连词if only用法。
【答案】A【解析】依据If only的用法结合前句为过去式可知答案。
48．【命题立意】此题设置了情态动词shall表示“命令、警告”意思的为选项。考查shall基本用法。
【答案】D【解析】句意：没有父母的准许孩子在晚上11点后是不准外出的。此处shall有“警告、命令”的意思，故可知答案D正确。
49．【命题立意】此题设置了情态动词should否定句式“不应该；本不该”意思的为选项，考查should+have done句式。
【答案】D【解析】依据句意和I don't know how to thank you.
的意思“我不知道怎么感谢你”可知对方做了这事，故答案D合适。
50．【命题立意】此题设置了情态动词should “应该；照理说”意思的为选项，考查should基本用法。
【答案】C【解析】依据句意和从but he is ill recently推出“本该这样，但事实是最近病了”来呼应上句。
51．【命题立意】此题设置了混合型虚拟语气为选项；考查连词but在虚拟语气中的使用。
【答案】B【解析】依据句意but在虚拟语气中的句式特点以及此处could have visited him时态就可以推出答案；but后面的句子可以改写成一个含有if虚拟语气的句子=if I had remembered his address。
52．【命题立意】此题设置了can表示请求的许可意思为选项；考查情态动词can的基本用法。
【答案】B【解析】依据句意可知“请求”联系上句could，与之呼应的是can。推出答案。
53．【命题立意】此题设置了对现在情况的猜测为选项。考查might用于猜测句式。
【答案】B【解析】从此题的语气分析应该是“可能被撞倒”，排除C、D项；knock与you之间是逻辑上的动宾关系，所以应用其被动语态，故此处“或许可能被撞倒”选B正确。
54．【命题立意】此题设置了对过去情况的猜测为选项。考查must用于猜测句式的用法。
【答案】A【解析】 根据语境“Peter上班去了，可家里的灯还亮”，可知“她准是忘了关”，是对过去事情的推测，故用“情态动词 + have done”。must have done意为“一定 / 准是做了某事”；should have done意为“本来应该做某事而实际未做”。
55．【命题立意】此题设置了need实意动词的否定为选项。考查need实意动词的用法。
【答案】C【解析】由语境He doesn't belong to our club可知没有必要通知Mr. Watt，因为他不是我们俱乐部的成员。Didn't need to do表示“没必要，实际上也没做”，而 needn't have done表示“虽没有必要，但已经做了”。couldn't have done表示过去不可能做某事；shouldn't have done本不应该做某事，而实际却做了。
56．【命题立意】此题设置了may表示“祝愿”意思为选项。考查may的基本用法。
【答案】C【解析】句意：我明天要去桂林旅游，太好了，祝你旅途愉快！根据句意may符合。
57．【命题立意】此题设置了be supposed to do为选项。考查固定句式用法。
【答案】C【解析】句意：作为学校唯一的被邀请的外教，怀特先生本该参加昨天的口语角。我不明白他为什么缺席。表示“本应该做（而实际上没有做）”可以用was / were supposed to do 或ought to / should have done，故只有C项正确。
58．【命题立意】此题设置了should表示“惊奇”为选项。考查情态动词的基本用法。
【答案】C【解析】should可用于表示惊奇等，有“竟然会”的意思，依据句意，选C合适。
59．【命题立意】此题设置了can't表客观上的“不能”为选项。考查情态动词的基本用法。
【答案】B【解析】句意：“你明天去北京吗？”“不，去不成了。我的一个朋友要来看我”。can't表客观上的“不能”合适。
60．【命题立意】此题设置了cannot固定句式为选项。考查情态动词的固定用法。
【答案】A【解析】按照句意可知此处有“无论怎样……也不算过分，越……越……”的意思，故A合适。
61．【命题立意】此题以must表示“偏偏”意思为选项。考查情态动词must的基本用法。
【答案】A【解析】句意：我正要出发这是天偏偏下起雨来。此处句意表示与说话者不一样的愿望，故答案A正确。
62．【命题立意】此题以could表示猜测的否定句式为选项。考查情态动词could的基本用法。
【答案】C【解析】由下文的there was no time for them这一语境所决定，既然“没有时间”，那么“旅游”就应是“不可能”，所以选 couldn't be，即选C。
63．【命题立意】此题以情态动词与真实语气的辨析以及语境下的时态为选项。考查动词时态的基本用法。
【答案】C【解析】 句意：—你认为他会成功吗？—我从来也不这样认为，但我现在认为他会成功。此处now与过去对比，故答案C正确。
64．【命题立意】此题以must表示对过去情况的猜测为选项。考查情态动词must的基本用法。
【答案】B【解析】由上文的gave这一时态所决定对过去情况作推测，故应用“情态动词+动词完成式”故选B。
65．【命题立意】此题以与表示现在事实相反的假设虚拟语气为选项。考查与现在事实相反的假设虚拟语气用法。
【答案】A【解析】依据句子语境可知虚拟语气，按照主句would+动词原形可知从句用一般过去式。
66．【命题立意】此题以情态动词can的用法为选项。考查can在肯定句中用法。
【答案】D【解析】按照句意可知can表示“可能会是……”，故与can用在肯定句中表示“一时的可能性”符合。
67．【命题立意】此题以情态动词shall的用法为选项。考查shall在肯定句中的基本用法。
【答案】D【解析】句意：政府宣布：“按照双方协议，工资应该付给工人。政府宣布的决定有法律效力，不得违背， shall用于第二、三人称时，有此用法。must可译作“必须”，但只是一种主观要求，不具备shall的毋庸置疑的决定口气。
68．【命题立意】此题以情态动词ought to的用法为选项。考查ought to的基本用法。
【答案】D【解析】句意：趁热打铁。此处语境有“应该、劝告或推荐”的意思。
69．【命题立意】此题以情态动词could与be able to的用法为选项。考查was able to的基本用法。
【答案】C【解析】按照句意“他能够独立行走”，故此次符合C的用法。
70．【命题立意】此题以情态动词needn't的用法为选项。考查need的基本用法。
【答案】D【解析】前句是说“我不介意把自行车借给你用”，后者说“I've already borrowed one.”，由此推出“没有必要了（借给我啦）”，填needn't符合语境。
71．【命题立意】此题以情态动词don't have to的用法为选项。考查have to的否定用法。
【答案】C【解析】根据句意“你不需要付食品款”， don't have to=need not 故C合适。
72．【命题立意】此题以情态动词would rather的用法为选项。考查would rather+动词原形的用法。
【答案】D【解析】从It's such a bad day．来看是“不愿意和我一起散步”。
73．【命题立意】此题以情态动词must表示猜测的用法为选项。考查must对过去情况的肯定猜测。
【答案】D【解析】按照语境是对过去可能发生事情的一种猜测，故答案D合适； C表示“应该做的事情而没有做”的责备。
74．【命题立意】此题以情态动词need+have done表示本不需要做某事结果做了的用法为选项。考查need对过去发生情况的看法。
【答案】B【解析】本题考查情态动词的各种时态的含义。一是要弄明白各情态动词间的区别，二是要弄明白情态动词不同时态表达形式间的区别。needn't do“不必做”：needn't have done“本不必做某事”，实际上已经做了；mustn't do“不准做”，表禁止、命令；shouldn't have done“本不应该做”，实际上已经做了。
75．【命题立意】此题以情态动词can't表示不可能发生某事进行猜测的用法为选项。考查对过去发生情况的否定猜测。
【答案】C【解析】根据后文“他的车还在这儿，应该是不会回家”。can't have done“一定没有干过……”不合题意。
76．【命题立意】此题以情态动词表示猜测句子的反义疑问句的用法为选项。考查对现在情况猜测的反义疑问句。
【答案】C【解析】表示推测时，must的反意疑问部分根据谓语动词来确定，并且要把它还原成真实意义的句子时态，然后再反问，此处为现在的情况，故C正确。
77．【命题立意】此题以情态动词could的用法为选项。考查情态动词基本用法。
【答案】B【解析】句意：如果我能免费得到一台手提电脑的话，我想去……被选项中只有could使句意合理，表示能力。
78．【命题立意】此题以it is +adj.+that从句中的虚拟语气的用法为选项。考查主语从句中的虚拟语气。
【答案】B【解析】此处是在“It is natural that+从句”句型中，从句谓语动词用should do的形式，should可以省略，由此排除A；send与him之间构成逻辑上的动宾关系，所以send应用被动语态的形式，由此排除D；由句意“没有被派去加拿大，而是被排除纽约”，由此排除C。
79．【命题立意】此题以