情态动词在高考中的考查重点：解题的方法：否定句、疑问句和感叹句中，表示怀疑、惊异、不相信的态度表示“经过努力后终于能……”用be able to惯用形式“can not (can't)…too/over/enough”。表示“无论怎么……也不(过分)”，用来加强语气
can not but do sth. 不得不；只好would 与used to 的区别used to表示过去的某种习惯，现在已经没那样的习惯了；would 表示过去有某种习惯，不与现在对比表示过去的状态，只能用used to，不能用wouldshall用于第二、三人称警告、命令、允诺、威胁等can ,may ,must皆可用来表示推测
在肯定句中都可以用来表示可能。在含义上must”语气最肯定may”表示的是事实上的可能性。在否定句中只能用can和may。所以can’t”（不可能语气比may not”（可能不、也许不）更在疑问句中只能用can”，不能用may和must。在高考中的考查重点：虚拟语气的活用
时间错综虚拟结构
省略if的虚拟结构
并列连词或副词暗示的虚拟结构
介词或介词短语暗示的虚拟结构
as if / as though方式状语从句中的虚拟语气
名词性从句中的虚拟语气
分词短语暗示的虚拟结构
上下文语境中的虚拟结构
解题的方法：2.(2017大纲卷)17.I’m going to Europe on vacation together with John if I _________find the money.
A . can
B. might
C.
would
D. need
【答案与解析】.(2017北京卷)33.We ______ the difficulty together, but why didn’t you tell me?
A. should face
B. might face
C. could have faced
D. must have faced
【答案与解析】.(2017天津卷)15.We would have called a taxi yesterday if Harold __________us a ride home.
A. didn’t offer
B. wouldn’t offer
C. hasn’t offered
D. hadn’t offered
【答案与解析】
.(2017上海卷)28.The new law states that people
drive after drinking alcohol.
A. wouldn't
B. needn't
C. won't
D. mustn't
【答案与解析】.(2017重庆卷) 25.—____you interrupt now? Can’t you see I’m on the phone?
—Sorry Sir, but it’s urgent.
A. Can
B. Should
C. Must
D. Would
【答案与解析】.(2017安徽卷) 31.Grace doesn’t want to move to New York because she thinks if she
there, she wouldn’t be able to see her parents very often.
A. lives
B. would live
C. has lived
D. were to live
【答案与解析】11.(2017湖南卷)29.Sorry, I am too busy now. If I _____ time, I would certainly go for an outing with you.
A. have had
B. had had
C. have
D. had
【答案与解析】12.(2017江苏卷)28.Days later, my brother called to say he was all right, but
say where he was.
A. mustn't
B. shouldn't
C. wouldn't
D. mightn't
【答案与解析】
14.(2017江西卷)22.We
have bought so much food now that Suzie won’t be with us for dinner.
A. may not B. needn’t C. can’t D. mustn’t
【答案与解析】
1.(2017辽宁卷)24.One of our rules is that every student
wear school uniform while at school.
A. might
B. could
C. shall
D. will
【答案与解析】16.(2017辽宁卷)33.Jack is a great talker. It’s high time that he
something instead of just talking.
A. will do
B. has done
C. do
D. did
【答案与解析】18.(2017陕西卷)17.If may car _________more reliable, I would have driven to Lhasa instead of flying last summer.
A. was
B. had been
C. should be
D. would be
【答案与解析】19.(2017陕西卷)23.I______ thank you too much for all your help to my son while we were away from home.
A. won’t
B. can’t
C. can
D. will
【答案与解析】1.(2017卷)19.Had they known what was coming next, they ________ second thoughts.
A. may have
B. could have
C. must have had
D. might have had
【答案与解析】