一起来看看should这个词的常考考点。
考点一 “应该、应当，倒……”之意
1. According to the air traffic rules， you ______ switch off your mobile phone before boarding.
A. may B. can
C. would D. should
2. ——I don’t care what people think.
——Well， you ______.
A. could B. would
C. should D. might
3. What do you mean， there are only ten tickets？ There
______ be twelve.
A. should B. would
C. will D. shall
【解析与答案】D； C； A should常表示现在或将来的责任或义务，表示“应该、应当”，相当于ought to， be supposed to。
考点二 shall也有“必须，应，可”之意
1.——I haven’t got the reference book yet， but I’ll have a test on the subject next month.
——Don’t worry. You _____ have it by Friday.
A. could B. shall
C. must D. may
2. ——What does the sign over there read？
——“No person ______ smoke or carry a lighted cigarette， cigar or pipe in this area.”
A. will B. may
C. shall D. must
3. One of our rules is that every student ______ wear school uniform while at school.
A. might B. could
C. shall D. will
【解析与答案】B； C； C shall也可作情态动词，表示说话者的意图、允许、警告、命令、以及说话人的决心等，用于陈述句的第二、第三人称中，有“必须，应，可”之意。
考点三 “有可能、大概”之意
1. ——When shall we meet your cousin at the station？
——His plane took off 2 hours ago， and it ______ reach at 5 p.m.
A. should B. could
C. must D. can
2. He took his raincoat with him for fear that it ______.
A. rained B. should rain
C. would rain D. will rain
3. Here’s an English dictionary in case you ______ it.
A. should need B. needed
C. needing D. to need
【解析与答案】A； B； A should用在由so that， for fear that， lest， in case （that）引导的状语从句中，有“大概、可能、会”之意，相当于could， might。
考点四 “竟会”、“居然”之意
1. Mr. Bush is on time for everything. How ______ it be that he was late for the opening ceremony？
A. need B. should
C. may D. must
2. ——You just think of yourself！You kept me waiting for at least three hours.
——I am sorry that you ______ think so.
A. would B. might
C. could D. should
3. I don’t see any reason why he ______ be happy.
A. wouldn’t B. needn’t
C. shouldn’t D. mustn’t
【解析与答案】B； D； C should用来表示说话人对某事不理解，感到意外、惊讶，尤其在以why， who， how等开头的修辞疑问句或某些感叹句中，常常表示“竟会”、“居然”的意思。
考点五 “万一、如果”之意
1. _________ fired， your health care and other benefits will not be immediately cut off.
A. Would you be B. Should you be C. Could you be D. Might you be
2. This printer is of good quality. If it _______ break down within the first year， we would repair it at our expense.
A. would B. should
C. could D. might
3. There is a real possibility that these animals could be frightened， ______ a sudden loud noise.
A. being there B. should there be
C. there was D. there having been
【解析与答案】B； B； B should用在条件状语从句中，表示语气较强的假设，有“万一、如果”的意思。
注意：也可将should置于从句之首，省略条件连词if。
考点六 “本来（不）应该……、大概已经……”之意
1. ——I’m sorry. I ______ at you the other day.
——Forget it. I was a bit out of control myself.
A. shouldn’t shout B. shouldn’t have shouted
C. mustn’t shout D. mustn’t have shouted
2. ——Sorry， Professor Smith. I didn’t finish the assignment yesterday.
——Oh， you ______ have done it as yesterday was the deadline.
A. must B. mustn’t
C. should D. shouldn’t
3. I ______ have watched that movie—it’ll give me horrible dreams.
A. shouldn’t B. needn’t
C. couldn’t D. mustn’t
【解析与答案】B； C； A “should（shouldn’t） have -ed分词”结构，用来表示对过去情况的推测和判断，表示“本来（不）应该……、大概已经……”。
考点七 用于虚拟语气
1. Teachers recommend parents ______ their children under 12 to ride bicycles to school for safety.
A. not allow B. do not allow
C. mustn’t allow D. couldn’t allow
2. She insisted that she ______ not guilty， but we insisted that she ______ into prison.
A. was； be put B. be； was put
C. should be； was put D. was； should put
3. ——Did your father go to America？
——No， his doctor gave a suggestion that he ______ there.
A. is going B. not go
C. did not go D. to be doing
4. ——Don’t you think it necessary that he ______ to Miami but to New York？
——I agree， but the problem is ______ he has refused to.
A. will not be sent； that
B. not be sent； that
C. should not be sent； what
D. should not send； what
5. I advised not only ______ to the meeting but also give a speech there.
A. did he go B. his going
C. should he go D. he should go
6. It was strange that we ______ short of water in the country where it was always raining.
A. are B. be
C. should be D. both B and C
【解析与答案】should经常用于下列虚拟语气的从句中：
1. 条件状语从句：用在表示与将来事实相反，构成“If...should （do sth ...， ...would/ could/ might （do sth.） ...”的句式中。例如：If you should（或were to） tell a lie， you would be punished. 你要是撒谎的话，你会受惩罚的。
2. 宾语从句：用在表示“建议、要求、命令、决定、安排、计划、主张”（suggest， propose， arrange， plan， decide， advise， order， demand， request， desire， insist）等动词后面的从句中，这里的should可以省略。例如：The doctor ordered that she （should） stay in bed for another week. 医生嘱咐她再卧床休息一个星期。
3. 主语从句：用在“It is desired （suggested， requested， ordered， proposed， decided） ...”的结构中，“It is/ was necessary/ important/ strange/ incredible ...”的结构和“ It is a pity/ a shame/ no wonder ...”的结构之后，由that引导的主语从句中，should有“惊奇、怀疑、惋惜、不满、理应如此”等意思，should可以省略。例如：It’s strange that it should be so cold today. 奇怪，今天怎么这么冷。It is a great pity/ shame/ that he should be so conceited. 真遗憾，他竟会这样自高自大。
4. 表语从句或同位语从句：用在suggestion， proposal， order， plan， advice， request， decision， requiry等名词后面的从句中，should也可省略。例如：My decision is that we （should） do more eye exercises every day. 我的意见是我们每天应该多做眼保健操。
上面六道小题答案为A； A； B； B； C； D
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