最新情态动词详解+例句Word文件下载.docx

1、should have done本应该做某事却没做。故选D。2It _ be the postman at the door. Its only six oclock.Amustnt BcantCwont Dneedn【答案】BD考查虚拟语气。不可能是邮递员在门口，才六点钟呢。mustnt 禁止，不允许；cant 不可能；wont 不愿意，就是不，偏不；neednt 不需要。3Keep up your spirits even if you _ fail hundreds of times.Amust BneedCmay Dshould【答案】C【详解】考查情态动词。A. must必须；B.

2、need需要；C. may可能，或许；D. should应该。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。4The accident which left 15 people on board dead _ if both the angry female passenger and the bus driver had kept calm.Ashould have avoided Bshould be avoidedCcould have avoided Dcould have been avoided考查“情态动词+完成式”。如果愤怒的女乘客和巴士司机保持冷静，这起导

3、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The accident和谓语动词avoid之间是被动关系，结合句意可知答案为D。【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c

4、an弱。He cant 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。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。I neednt have bought so much wineonly five people came.5.“should / o

5、ught 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。You ought to / should have studied harder. 你本应该更努力学习的.（但没有）He oughtnt to / shouldnt 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。I gue

6、ss the poet would have been about twenty when she wrote her first poem.Another worker wouldnt have acted like that.5It is really cold and the ground is wet; it _ have rained last night.Amight BmustCcan Dshould天气很冷而且地面是湿的，昨晚一定下了雨。根据上文the ground is wet可知，“昨晚下了雨”是肯定的，故用must have done“必定做了”表示对过去十分有把握的推测

7、，故选B。must have done用法辨析must have done：表示对过去的肯定的逻辑推测，推定某件事情、动作或状态可能在过去发生过（存在过）。He must have been a doctor, for he knows medicine so well. 他过去肯定是一位医生，他对医学如此了解。Somebody must have stolen the ring. 肯定有人偷了这枚戒指. 该句所推断的偷窃动作发生在过去.The temperature must have dropped to below zero last night, because the water i

8、s frozen all over.昨夜的温度肯定降到零度以下，因为水都冻住了。如果“must + have + 过去分词”句型与by now连用，还可以表示对现在完成的动作和状态的肯定推测，但实质上还是指所推测的过去的动作。例如：They started early this morning; they must have arrived by now. 他们今晨很早就出发了，现在肯定已经到了。中国学生的常见病句是：They.; they certainly have arrived.病句的句义是“他们当然已经到达了。”（这不是对过去的肯定推测，而是断定动作已经完成。）6would可以表达过

9、去常常做的事，过去习惯发生的动作：Pirates would bury gold in a cave. 海盗们常常把黄金藏在山洞中。We would take a walk along the river. 我们过去常常沿河散步。3. would后接like、love、mind等动词，表示要求、邀请、希望或询问，此时不是说过去，而是对现在的询问：Would you like to come to my party? 你愿意来我的派对吗？Would you mind coming with us? 你介意和我们一起吗？比如本题，would 表示婉转的请求，征求对方的意见，故选A。7No stud

10、ent _ go out of school to have lunch without permission of the headteacher.Cshall Dcould未经校长允许，任何学生不得离开学校去吃午饭。might可能；must一定，必须；shall会，将；could能够。本句是一条禁令。shall用于肯定句并且主语是第一、三人称时，表示允诺，警告，劝告等语气。故选C。8My sister met him in the street yesterday afternoon, so he _ your lecture.Ashouldnt have attended Bcouldn

11、t have attendedCmustnt have attended Dneednt have attended试题分析：考查情态动词用法。Shouldnt have done本不应该做某事，实际上却做了（虚拟语气）；couldnt have done不可能做某事（对过去情况的推测）；neednt have done本不需要做某事，实际上却做了（虚拟语气）；我的姐姐昨天下午在街上遇见了他，所以他不可能去听了你的演讲。故B正确。考点：考查情态动词用法点评：考本题是高考必考考点，一定要牢记句型意思。must have done过去肯定做了某事。should have done 本应该做而实际未

12、做。cant have done 过去不可能做了某事；shouldnt have done 本不应该做而实际做了。 need have done 本有必要做某事；neednt have done 本没有必要做某事；注意没有 mustnt have done的形式。9I still find it hard to imagine that such a clever child _ make such a foolish mistake.Ashall Bmust 句意：我仍然难以想象这样聪明的孩子竟然犯这样愚蠢的错误。should 作为情态动词，可以用来表示意外、惊喜或者在说话人看来是不可思议的

13、，常常译为竟会、居然，这么聪明的孩子竟然犯这样愚蠢的错误。表示意外，shall表示允诺，命令等，must表示必须，can表示能力及可能性。所以答案选D。10Daddy, would you please buy me an iPhoneX?If you can pass this midterm examination, you _ have one as a reward.Cwould Dshall爸爸，你可以给我买部iPhone X吗？-如果你通过考试，你就会得到一部作为奖励。A. must一定；B. need必要；C. would将，会；D. shall会。根据语境可知，这句话是父亲对子女的允诺，故选D。shall的用法。1. shall作为助动词，一般用于第一人称和We，表示一个将来的动作，构成将来时态。shall后面接动词原形。（1）I shall think it over and Let you know my idea.我将考虑一下此事，然后告诉你我的想法。（2）We shall have a good time in the park.我们在公园里会玩得很高兴的。2. shall用于第一人称，表示征求对方的意愿。What shall we do this evening?3. shall用于第一、第三人称疑问句中，表示说话人征求对方的意见