【英语】英语情态动词用法总结(完整)

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—The trees ________ well, but I didn’t water them.
A.might growB.needn’t have grown
C.would have grownD.would grow
【答案】C
【解析】
考查虚拟语气。——我们上周种的小树怎么了?——这些小树本来会长得很好,但是我们没有给它们浇水。根据语境可知,此处是对过去的事实进行假设,故本题选C。
5.“should / ought to + have +过去分词”表示过去本该做某事但没做,其否定式表示过去不该做某事但做了,这种句式含有不满或责备之意,ought to的语气比should强一些。如:
You ought to / should have studied harder.你本应该更努力学习的.(但没有)
6.He is a bad-tempered fellow, but he ________ be quite charming when he wishes.
A.shallB.should
C.canD.must
【答案】C
【解析】
【详解】
考查情态动词辨析。句意:他是个脾气不好的家伙,但当他希望自己有魅力的时候,他可以变得相当可爱。此处表示“能、可以”,故C项正确。
—Don’t count on it too much. It ________ break down and you’d better make a copy of them.
A.mustB.can
C.shouldD.will
【答案】B
【解析】
【详解】
考查情态动词。句意:——有一台计算机来储存照片真是太棒了。——不要过度依赖它。它有时候也会出故障,你最好做一个备份。计算机出故障这是可能的事情,表示客观可能性用can。must肯定,必须;should应该;will表意愿。故B选项正确。
【答案】D
【解析】
考察情态动词,题干中的he wasn’t certain说明他可能不来,可能来,因此使用不完全否定,might not。
3.Keep up your spirits even if you _____ fail hundreds of times.
A.mustB.need
C.mayD.should
2.—I don’t really like Janes. Why did you invite him?
—Don’t worry. Hecome. He said he was’t certain what his plans were.
A.must notB.need notC.would notD.might not
He oughtn't to / shouldn't have done that.他本来就不该做那件事.(可是做了)
6.“would+have+过去分词”表示对过去的某种情况进行猜测,或本来要做某事却因某种原因未做成,通常用来说明某一情况,但不像用should或ought to那样含有责备之意.如:
【答案】A
【解析】
【详解】
【详解】
考查情态动词。句意:所有学生们应在去学校之前带上口罩以防感染非典病毒,这已经被宣布。shall用于第二、第三人称,表示说话人给对方命令、警告、允诺或威胁,故选A项。
11.Mark driving at top speed, he arrived half an hour early.
He oughtn't to / shouldn't have done that.他本来就不该做那件事.(可是做了)
6.“would+have+过去分词”表示对过去的某种情况进行猜测,或本来要做某事却因某种原因未做成,通常用来说明某一情况,但不像用should或ought to那样含有责备之意。如:
A.mustn’tB.needn’tC.may notD.shouldn’t
【答案】D
【解析】
【详解】
考查情态动词。句意:——我觉得有点紧张。——不要着急。当你准备充分时,通过考试应该不会有困难。A. mustn’t禁止,不允许;B. needn’t不必;C. may not可能不会;D. shouldn’t不应该。结合句意可知答案为D。
8.---He was satisfied with the result, wasn't he?
---No. It was so difficult that he __________have passed it.
A.shouldn'tB.mustn't
C.couldn' tD.wouldn't
A.mustB.could
C.wouldD.shall
【答案】D
【解析】
【详解】
考查情态动词的用法。句意:新开业的超市宣布,开业当天首先购物的人会得到大奖。shall用于二三人称的陈述句中可以表示说话人的承诺,命令,警告等,此处表示超市的承诺,故选D。
5.“should / ought to + have +过去分词”表示过去本该做某事但没做,其否定式表示过去不该做某事但做了,这种句式含有不满或责备之意,ought to的语气比should强一些.如:
You ought to / should have studied harder.你本应该更努力学习的.(但没有)
A.should have avoidedB.should be avoided
C.could have avoidedD.could have been avoided
【答案】D
【解析】
【详解】
考查“情态动词+完成式”。句意:如果愤怒的女乘客和巴士司机保持冷静,这起导致15人死亡的事故本来是可以避免的。could have done“本来能做而没有做”,且句子主语Theaccident和谓语动词avoid之间是被动关系,结合句意可知答案为D。
10.It has been announced that all the students ________ put on masks before going to school in case they are infected with SARS virus.
A.shallB.willC.needD.may
3.“may / might + have +过去分词”表示对已发生的动作或存在的状态进行不肯定的推测,might的语气比may弱一点.这种结构主要用于肯定句和否定句,疑问句改用can或could.如:They may not have known it beforehand.
4.“need + have +过去分词”表示过去做了不必做或不需要做的事情,或过去做某事纯属多余.如:I needn't have bought so much wine—only five people came.
【英语】英语情态动词用法总结(完整)
一、单项选择情态动词
1.—I feel a little nervous.
—Take it easy. You __________ have difficulty passing the exam when you have prepared for it well.
I guess the poet would have been about twenty when she wrote her first poem.
Another worker wouldn't have acted like that.
9.—What happened to the young trees we planted last week?
I guess the poet would have been about twenty when she wrote her first poem.
Another worker wouldn't have acted like that.
5.—It’s really great to have a computer to store my photos.
7.— Excuse me, do you mind if I open the window?
— Well, if you__________. I can put on more clothes.
A.canB.may
C.mustD.shall
【答案】C
【解析】
【详解】
考查情态动词。句意:-不好意思,我把窗户打开你介意吗?-好吧,如果你必须这么做的话。我可以多穿点衣服。A. can能够;B. may可能;C. must一定;必须;D. shall会;将。must表示偏要,必须要做的事情,故选C。
A.needn’tB.wouldn’tC.mustn’tD.couldn’t
【答案】A
【解析】
考查情态动词。need’t have done本不必要做某事,句意:迈克本不必要着急的。他以全速驾驶后,他早到了半个小时。wouldn’t不会,mustn’t禁止,couldn’t不可能,所以选A。
12.The new supermarket has announced that the first to purchase goods on the opening day ________ get a big prize.
【答案】C
【解析】
【详解】
考查情态动词。A. shouldn't不应该;B. mustn't禁止,不允许;C. couldn' t不可能;D. wouldn't不会。句意:---他对结果很满意,是吗? ---不。考试太难了,他不可能通过。固定结构:couldn' t have done“不可能做某事”,此处是对过去事情有把握的否定推测。故选C。
【答案】C
【解析】
【详解】
考查情态动词。A. must必须;B. need需要;C. may可能,或许;D. should应该。句意:即使失败了几百次,也要振作起来。此处表示一种不确定的推测,故选C。
4.The accident which left 15 people on board dead ________ if both the angry female passenger and the bus driver had kept calm.
【点睛】
情态动词+ have done结构:
1.“must + have +过去分词”表示对过去发生的事情或状态进行推测,语气比较坚定,通常只用于肯定句.如:It must have rained last night,for the ground is wet.
2.“can / could + have +过去分词”表示对过去某种情况的怀疑或不确定.can和could一般用于否定句和疑问句,could的语气较can弱.如:He can't have finished the work so soon.
【点睛】
情态动词+ have done结构:
1.“must + have +过去分词”表示对过去发生的事情或状态进行推测,语气比较坚定,通常只用于肯定句。如:It must have rained last night,for the ground is wet.
2.“can / could + have +过去分词”表示对过去某种情况的怀疑或不确定。can和could一般用于否定句和疑问句,could的语气较can弱。如:He can't have finished the work so soon.
3.“may / might + have +过去分词”表示对已发生的动作或存在的状态进行不肯定的推测,might的语气比may弱一点。这种结构主要用于肯定句和否定句,疑问句改用can或could。如:They may not have known it beforehand.
4.“need + have +过去分词”表示过去做了不必做或不需要做的事情,或过去做某事纯属多余。如:I needn't have bought so much wine—only five people came.
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