B1
情态动词和虚拟语气
热点·6
Ⅰ.用can, may, might填空
—He should, but he ________not. He likes driving his car.
②Peter ________come with us tonight, but he isn't sure yet.
③Sorry，I'm late. I ________have turned off the alarm clock and gone back to sleep again.
________not be Mary. She's in hospital.
⑤How ________you be so stupid?
答案 ①may/might ②may/might ③might ④can ⑤can
单项填空
(2010·北京卷)—Good morning. I've got an appointment with Miss Smith in the Personnel Department.
good morning. You ________be Mrs. Peters.
A．might
B．must
C．would
D．can
答案 B [句意：——早上好，我和人事部的Smith小姐有约。——啊呀，早上好。那您一定是Peters女士。本题考查情态动词表推测的用法。根据题干可以判断说话人对所推断的情况很肯定，故选择B项。]
(2010·浙江卷)“You ________have
a wrong number，”she said. “There's no one of that name here.”
D．would
答案 C [句意：“你肯定打错电话了，”她说，“这儿没有叫那个名字的人。”考查情态动词。此处情态动词表推测，由语境可知说话人对推测的事情把握较大，所以用must(肯定，一定)。]
(2010·安徽卷)Jack described his father, who ________a brave boy many years ago, as a strongwilled man.
C．must be
D．must have been
答案 D [句意：杰克的父亲很多年前一定非常勇敢，因此杰克说他的父亲是一个意志坚定的人。本题考查情态动词表推测。由句中的many years ago可知是对过去的推测，故排除A、C；而B项表示可能性很小，故被排除。]
(2009·上海卷)It ________have been Tom that parked the car here, as he is the only one with a car.
答案 C [句意：一定是汤姆把车停在这里的，因为只有他有车。此句用must表示肯定的推测。must have done表示“(过去)一定做了某事”。may，can和should也可用来表示推测。may表示“可能，也许”，推can表示推测时一般用于否定句和疑问句中。should表示按理应该……。]
(2009·安徽卷)Some people who don't like to talk much are not necessarily shy; they ________just be quiet people.
答案 B [must肯定；may或许；should应该；would想必。]
(2009·全国Ⅰ卷)What do you mean, there are only ten tickets? There ________be twelve.
答案 A [句意：你是什么意思，只有十would/will与各种人称连用，常表意志、意愿。shall常与第二人称连用，表示命令、警告、允诺。根据句意，表“按说应该”，故用should，故答案为A项。]
(2009·辽宁卷)The traffic is heavy these days. I ________arrive a bit late, so could you save me a place?
答案 D [句意：最近几天交通拥挤。我有可能迟到一会儿，因此请你给我留个位子好吗？might往往表较小的可能性，符合句意。can能，会；must必须，一定；need需要。]
(2008·浙江卷)You ________be hungry already—you had lunch only two hours ago!
needn't
答案 B [句意：你不可能已经饿了——你两个小时前才吃的午饭！can't“不可能”符合题意；mustn't意为“绝对不能，禁止”。]
(2008·天津卷)She ________have left school, for her bike is still here.
答案 A [句意：她的自行车现在还在这儿，她不可能离开了学校。此题考查情态动词表推测的用法。wouldn't have done用在虚拟语气中，表示与过去事实相反的情况。can't have done sth表示过去不可能做了某事；shouldn't have done sth表示过去本不该做某事而实际上做了；needn't have done sth表示过去本不必做某事但做了。]
(2011·北京卷)—I don't really like James. Why did you invite him?
—Don't worry. He ________come. He said he wasn't certain what his plans were.
A．must not
B．need not
C．would not
D．might not
答案 D [句意：——我真的不喜欢James。为什么你邀请他？——别担心，他可能来不了。他说他还不能确定他的计划是什么。本题考查情态动词。must not表示禁止；need not表示不必；would not表示不会；might not表示可能不。根据题意答案为D项。]