专题八 情态动词和虚拟语气 十年高考母题原型训练-【备战高考】备战2027高考英语母题题源同步练

insist后的宾语从句谓语动词不使用虚拟语气形式，应使 用陈述语气形式。如： The smile on his face suggested that he was satisfied with our work. 他脸上的表情表明他对我们的工作很满意。 The man insisted that he had never stolen the money. 那个人坚持说他从来没有偷钱。 (2)用于主语从句中 It is desired/suggested/proposed/necessary/important/ strange/natural/a pity/essential-+that从句，从句中的谓语动 词用“should+动词原形”，should可以省略。如： It is suggested that the meeting should be put off till next week. It is strange that he should have acted toward his par- ents like that..(act在主句谓语动词be之前时，要用“should have十过去分词”) 注意： 以上句式也可以用于陈述语气。如： It's strange that he didn't come yesterday. It's a pity that you can't dance. (3)用于表语从句和同位语从句中 suggestion,proposal,order,plan,idea,request, advice等名词后的表语从句和同位语从句中要用虚拟语 气，其构成是“should十动词原形”。如： My idea is that we should think it over before accepting it. We all agreed to his suggestion that we should go to Dalian for sightseeing. (4)asif/as though用在虚拟语气中 如果sf引导的从句谓语动词与主句谓语动词所表 达的动作同时发生，sf引导的从句谓语动词用过去式； 如果sf引导的从句谓语动词所表达的动作先于主句谓 语动词所表达的动作，asf引导的从句谓语动词用过去完 成式；如果sif引导的从句谓语动词所表达的动作后于主 句谓语动词所表达的动作，sf引导的从句谓语动词用过 去将来式。如： 十年高考母题原型训练 (★代表高考出现的频次) A组 题源1情态动词（★★★★） )1.(2023·湖南)He sleep,although he tried to,when he got on such a hunt for an idea until he had caught it. A.wouldn't B.shouldn't C.couldn't D.mustn't )2.(2023·天津)No one be more generous;he ·8 He looks as if he were an artist,(同时) She speaks English so fluently as if she had studied English in America.(先于) He learns English so hard as if he would go to the USA.(后于) (5)虚拟语气用于定语从句中 在ltis(high)time(that).句型中，定语从句的谓语 动词用过去式，或“should-十动词原形”（其中should不能省 略)。此句型意为“（现在）该……”，用来表示提议。如： It is (high)time that you went to school. It is (high)time that we should start out. (6)虚拟语气用于目的状语从句中 在in case,for fear that,lest等引导的从句中，谓语动 词用“should十动词原形”。有时也用陈述语气。如： She took the raincoat with her in case/for fear that/ lest she (should)be caught in the rain. The student is working hard for fear that he should fail to pass the exam. You'd better take an umbrella in case it rains. )[真题20](2023·陕西)My mom suggests that we eat out for a change this weekend. A.should B.might C.could D.would [解析]考查虚拟语气。题千关键词为suggest,表示“建 议”，其后所接的宾语从句对于现在情况的虚拟用“(should十)动 词原形”，故选A。 [答案]A ( )[真题21](2023·浙江)Eye doctors recommend that a child's first eye exam at the age of six months old. A.was B.be C.were D.is [解析]考查虚拟语气。题千关键词为recommend,表示 “推荐，建议”，后接宾语从句时应用(should十)动词原形的虚拟 语气，此处省去了should,故答案为B。 [答案]B has a heart of gold. A.could B.must C.dare D.need )3.(2023·陕西)1 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 )4.(2023·海南)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 ()5.(2023·辽宁)One of our rules is that every student wear school uniform while at school. A.might B.could C.shall D.will ( )6.(2023·重庆)一 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 ()7.(2022·全国I)Just be patient.You expect the world to change so soon. A.can't B.needn't C.may not D.will not ( )8.(2o22·全国Ⅱ)I'm afraid Mr.Harding see you now.He's busy. A.can't B.mustn't C.shouldn't D.needn't ( )9.(2022·重庆)You park here！lt's an emer gency exit. A.wouldn't B.needn't C.couldn't D.mustn't ()10.(2022·江西)I have told you the truth. keep repeating it? A.Must B.Can C.May D.Will )l1.(2022·辽宁)Doctors say that exercise is important for health,but it be regular exercise. A.can B.will C.must D.may ()12.(2022·安微)Jack described his father,who brave boy many years ago,as a strong-willed man. A.would be B.would have been C.must be D.must have been )13.(2022·湖南)You buy a gift,but you can if you want to. A.must B.mustn't C.have to D.don't have to ( )14.(2022·天津)Mark have hurried.After driving at top speed,he arrived half an hour early. A.needn't B.wouldn't C.mustn't D.couldn't )15.(2022·浙江)“You have a wrong num ber.” she said.“There's no one of that name here.” A.need B.can C.must D.would ()16.(2022·北京)-Good morning.I've got an appoint- ment with Miss Smith in the Personnel Department. 一Ah,good morning,You be Mrs.Peters. A.might B.must ·8 C.would D.can ()17.(2022·山东)1 have watched that movie- it'll give me horrible dreams. A.shouldn't B.needn't C.couldn't D.mustn't C )18.(2022·四川)一 I take the book out? 一I'm afraid not.. A.Will B.May C.Must D.Need )19.(2022·陕西)一May I take this book out of the read ing room? -No,you A.mightn't B.won't C.needn't D.mustn't )20.(2022·江苏)-I haven't got the reference book yet: but I'll have a test on the subject next month. 一Don't worry.You have it by Friday. A.could B.shall C.must D.may 题源2虚拟语气（★★★） )1.(2023·福建)一Do you think George has passed the driving test? -No.If so,he his car to our college yes- terday. A.would drive B.drove C.would have driven D.had driven ( )2.(2023·天津)If he had spent more time practicing speaking English before,he able to speak it much better now. A.will be B.would be C.has been D.would have been )3.(2023·重庆)一It rained cats and dogs this morning. I'm glad we took an umbrella. -Yeah,we would have got wet all over if we A.hadn't B.haven't C.didn't D.don't )4.(2023·湖南)Sorry,1amto0 busy now.lf1 time,I would certainly go for an outing with you. A.have had B.hadhad C.have D.had )5,(2023·安微)Grace doesn't want to move to New York be cause she thinks if she there,she wouldn't be able to see her parents very often. A.lives B.would live C.having asked D.were to live )6.(2023·浙江)Had they known what was coming next, they second thoughts. A.may have B.could have C.must have had D.might have had ()7.(2023·北京)Don't handle the vase as if it made of steel A.is B.were C.has been D.had been ( )8.(2022·湖南)Ifhe my advice,he wouldn't have lost his job. A.followed B.should follow C.had followed D.would follow ( )9.(2022·天津)-John went to the hospital alone. If he me about it,I would have gone with him. A.should tell B.tells C.told D.had told )10.(2022·浙江)Had I known about this computer pro gram,a huge amount of time and energy A.would have been saved B.had been saved C.will be saved D.was saved )11.(2022·北京)-The weather has been very hot and dry. -Yes.If it had rained even a drop,things would be much better now!And my vegetables A.wouldn't die B.didn't die C.hadn't died D.wouldn't have died ()12.(2022·福建)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 )13.(2022·陕西)1fwe the other road,we might have arrived here in time for the meeting. A.take B.had taken C.took D.have taken B组 题源1情态动词（★★★★） ()1.(2021·上海)It have been Tom that parked the car here,as he is the only one with a car. A.may B.can C.must D.should )2.(2021·湖南)-It's the office!So you know eating is not allowed here. 一Oh,sorry. A.must B.will C.may D.need ( )3.(2021·重庆)-Hi,Tom.Any idea where Jane is? -She in the classroom.I saw her there just now. ·8 A.shall be B.should have been C.must be D.might have been ( )4.(2021·四川)一Idon't care what people think. -Well,you A.could B.would C.should D.might )5.(2021·江苏)He did not regret saying what he did but felt that he it differently. A.could express B.would express C.could have expressed D.must have expressed ( )6.(2021·宁夏、海南)What do you mean,there are only ten tickets？There be twelve. A.should B.would C.will D.shall )7.(2021·全国Ⅱ)Ican't leave.She told me that I stay here until she comes back. A.can B.must C.will D.may )8.(202l·辽宁)The traffic is heavy these days.I arrive a bit late,so could you save me a place? A.can B.must C.need D.might )9.(2021·北京)One of the few things you say about English people with certainty is that they talk a lot about the weather. A.need B.must C.should D.can )10.(2020·陕西)一What sort of house do you want to have？Something big? -Well,it be big-that's not important. A.mustn't B.needn't C.can't D.won't )1l,(2o20·江西)What a pity！Considering his ability and experience,he better. A.need have done B.must have done C.can have done D.might have done ()12.(2021·安徽)Some people who don't like to talk much are not necessarily shy;they just be quiet people. A.must B.may C.should D.would ( )13.(2020·北京)John promised his doctor he not smoke,and he has never smoked ever since. A.might B.should C.could D.would )14.(2020·上海)According to the air traffic rules,you switch off your mobile phone before board- ing. A.may B.can C.would D.should ()l5.(2020·重庆)-】can't find my purse anywhere. -You have lost it while shopping. A.may B.can C.should D.would ()16.(2020·浙江)You be hungry already-you had lunch only two hours ago! A.wouldn't B.can't C.mustn't D.needn't ()17.(2020·天津)She have left school,for her bike is still here. A.can't B.wouldn't C.shouldn't D.needn't ()18.(2020·山东)Thank you for all your hard work last week.I don't think we it without you. A.can manage B.could have managed C.could manage D.can have managed ( )19.(2020·江苏)-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 )20.(2020·湖南)You don't have to know the name of the author to find a book.you find the book by the title. A.must B.need C.can D.would ()21.(2020·四川)Although this sound like a simple task,great care is needed. A.must B.may C.shall D.should ()22.(2020·福建)It is usually warm in my hometown in March,but it be rather cold sometimes. A.must B.can ·9 C.should D.would ()23.(2020·辽宁)Peter be really difficult at times even though he's a nice person in general. A.shall B.should C.can D.must ( )24.(2020·全国Ⅱ)Lisa well not want to go on the trip-she hates traveling. A.will B.can C.must D.may 题源2虚拟语气（★★★） ( )1.(2022·上海)一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 )2.(2022·安徽)Bob would have helped us yesterday,but he A.was busy B.is busy C.had been busy D.will be busy )3.(2022·江苏)George is going to talk about the geogra phy of his country,but I'd rather he more on its culture. A.focus B.focused C.would focus D.had focused ()4.(2021·福建)But for the help of my English teacher,I the first prize in the English Writing Compe tition. A.would not win B.would not have won C.would win D.would have won )5.(2021·浙江)The doctor recommended that you swim after eating a large meal. A.wouldn't B.couldn't C.needn't D.shouldn't往和主句谓语动词的动作同时发生，C项having waited所表 示的动作往往已经发生或先于主句的谓语动词发生，根据题 意等了半小时之后才意识到，故选C项。 专题八情态动词和虚拟语气 十年高考母题原型训练 A组 题源1情态动词 l.C考查情态动词。根据后文“although he tried to” 可知他不能入睡。故答案远C。 2.A考查情态动词。译为：不可能有人比他更慷慨： 他有着一颗金子般的心。根据句子意思，答案选A。 3.B考查情态动词。句意为：我们离开家的这段时间， 你对我的儿子的照顾有加，我不能再感谢得更多了。A项 “不愿意”；B项“不能够”；C项“可以，能够”：D项“愿意”。故 远B。 4.C考查情态动词。句意为：几天之后，我哥哥打电话 说他很好，而不愿意说他在哪里。根据句意可知，答案选C。 5.C考查情态动词。句意为：规章制度中的一条是每 个学生在校期间应该穿着校服。在第三人称的表示规章条 例的陈述句中，用shal表示义务，意为“应该”。故选C。 6.C考查情态动词。句意为：一你现在非要打断我 吗？你没看见我在打电话吗？—对不起先生，但是事情紧 急。ust表示必要性时意为“非要，偏要”，符合句意。故 选C。 7.A考查情态动词辨析。句意：耐心点儿，你不能指 望世界立刻发生变化。can't表示“不能”；needn't“不必”； may not表示“不可能”：will not表示“不会”。只有A符合 语意。 8.A考查情态动词。根据下一句中的内容可知M Harding现在“不能”见你。can't不能；mustn't表示“禁止”； shouldn't表示“不应该”；needn't表示“不必”。 9.D考查情态动词。根据题千中的“emergency exit"” 可知“此处是不允许停车的”，故用mustn't表示禁止。 10.A考查情态动词。句意：我已告诉你真相。一定要 我再重复吗？must必定，必须；can可能；may可以；wil愿 意，将。 11.C考查情态动词辨析。语意为：医生说，锻炼对于 健康很重要，但是必须是经常的锻炼。情态动词ust表示 “必须”，符合语意。 12.D。杰克把他的父亲描述成一个意志坚强的人，此 处表示的是对过去事实的推测，所以用must have done结 ·2 构。注意句中有一个非限制性定语从句将主句分隔开了。 13.D考查情态动词。语意：你不必买礼物，但如果你 想买也可以。don't have to意为“不必”，符合语意。 l4.A考查“情态动词十have done”的用法。needn't have done表示“本来不必要做但已经做了”，符合语意。 must have done只能用于肯定句；couldn't have done本不可 能但已经做了某事。 l5.C考查情态动词。从“There''s no one of that name here”可知“你一定弄错号码了”。此处表示“肯定的推测”， 故用must。can常表示一种“理论上的”可能性，need和 would不表推测，所以远C项。 16.B考查情态动词。must在这里表示推测，意思是 “一定”。语意：你一定是Peters夫人。其他几项不合语意。 17.A考查情态动词。由下半句“让我做噩梦”可以看 出，我很后悔看了那部电影，表示做了不该做的事情要用 shouldn't have done结构。语意为：我不该看这部电影的，因 为它会让我做噩梦。needn't have done表示做了没有必要做 的事情：couldn't have done表示不可能做某事；D项不存在 这种用法。 18.B考查情态动词。may表示征求对方的许 可。—我能将书带出吗？—恐怕不行。 19.D考查情态动词用法辨析。以may开头的问句， 在肯定回答中表示给予许可，可用may或can,但在否定回 答中要用mustn't,表示禁止。 20.B考查情态动词。此处shall用于第二人称表示说 话人的承诺。 题源2虚拟语气 1.C考查虚拟语气。根据句意，如果这样的话（乔治 已经通过驾照考试)，他昨天就驾车来我们大学了，可知是对 过去的虚拟。Ifso-If he had passed the driving test,.主句使 用情态动词十have done。故答案选C。 2.B考查虚拟语气。此题为f引导的虚拟条件句，从 句时间为before,故是对过去的虚拟，用过去完成时态，主句 时间为ow,故是对现在的虚拟，因此用情态动词过去式接 动词原形，答案为B。 3.A考查虚拟语气。虚拟条件句主句和从句均为对 过去的虚拟，f从句使用过去完成时态，故选A。 4.D考查虚拟语气。句意为：对不起，我现在很忙，如 果我有时间，我一定会和你一起出去。由主句中would g0可 知，句子考查对现在的虚拟，从句用一般过去时，故答案 为D。 5.D考查虚拟语气。句意为：Grace不想搬去纽约，因 为她认为如果她搬去那里，她就不能经常看望她的父母了。 由主句中wouldn'tbe可知，从句考查对现在的虚拟，应用一 般过去时，故远D。 6.D考查虚拟语气。句意为：如果他们知道了接下来 要发生什么，他们就会有别的想法。根据从句中的格式可知 虚拟语气中，if从句中含有助动词had,而把if省略，had提 于句前形成半倒装，had known为过去完成时，可知考查的 为对过去的虚拟，四远项中只有D项正确。 7.B考查虚拟语气。句意为：别把那个花瓶拿得跟它 好像是用钢做的似的。sif“仿佛，好像”，其后内容若与事 实不符则用虚拟语气，对现在虚拟用一殷过去时，故选B。 8.C考查虚拟语气。此处表示与过去的事实相反，故 从句应用过去完成时。语意：如果他当初听我的劝告的话， 他就不会失去工作了。 9.D考查虚拟语气。由此处的主句可知，这里表示与 过去事实相反的假设，故条件句中应用过去完成时。 10.A考查虚拟语气。从前面Had I known about. 知，此处是If条件句对过去情况的虚拟，所以主句用should/ would/.could/might+have done结构。 11.D考查虚拟语气。根据语意可知，这里表示与过 去的事实相反的假设，即哪怕是下一滴雨，我的蔬菜都不会 死掉。表示与过去事实相反的状况，从句谓语动词用“had done”,主句谓语动词用“would/could/should/might have done”。由此可知，D项正确。 12.A考查虚拟语气。老师建议家长为了安全起见， 不要让l2岁以下的孩子骑自行车上学。recommend后的宾 语从句中的谓语形式应为should do结构，should可以省略。 故答案为A项。 13.B考查虚拟语气。如果我们走了另外那条路的话， 我们可能会及时赶到这儿来参加会议的。题干为与过去事 实相反的虚拟语气，其构成是条件句用过去完成时，主句用 情态动词十have done。 B组 题源1情态动词 1.C句意：一定是汤姆把车停在这里的，因为只有他有 车。此句为强调句型，谓语动词为must have been,用must表示 语气肯定的推测。must have done表示“（过去）一定做了某事”。 2.A句意：一这是办公室！所以你必须知道这里不许 吃东西。一一嗅，对不起。us“必须”，在此处语气最强烈。 3.C句意：一嗨，Tom,你知道Jane在哪儿吗？ 她肯定在教室里。我刚才在那儿看到她了。从对话中可以 看出该空是对现在情况的肯定猜测。 ·2 4.C句意：—我不在乎人们想什么。—不对，你应 该在乎。根据语境，后半句中省略了一些与前句相同的内 容。该题目实际上考查了情态动词的用法。should用以表 示义务或责任，如：You shouldn't drink and drive。你不应该 喝酒后开车。 5.C句意：他不后悔说了他做了什么，而认为他本能够 用不同的方式表达。could express能够表达；would express 要表达；could have expressed本来能够表达；must have ex- pressed(表推测)肯定已经表达。 6.A句意：这儿只有10张票，是什么意思？应该有12 张票的。根据句意，按理来说，用should,故选A。 7.B句意：我不能离开。她告诉我，我必须在这里等， 直到她回来。can能够；must必须；wi将要；may可能。本 题Ican't leave提示我“必须”等。 8.D句意：最近这些天交通拥挤。我有可能迟到一会 儿，因此请你给我留个位子好吗？migt表示可能性，往往指 较小的可能性，符合句意。can能，会；must必须，一定；need 需要。 9.D句意：英国人为数不多的话题中可以确定说的一 个是他们对天气的谈论很多。此题考查情态动词。can表示 客观的可能性。 10.B句意：一你想要什么样的房子？大一点 的？—房子不必很大—那并不重要。needn't没有必 要；mustn't禁止，不允许；can't不可能；不能够；won't不会。 只有B远项符合题意。 11.D句意：多可惜！鉴于他的能力和经验，他可能会 做得更好。“might-十have十过去分词”表示过去可能做得 到，符合此意：“must十have十过去分词”表示对过去的肯定 推测；need have done其实该做；can have done多用于疑问句 或否定句中。 12.B句意：言语不多的人未必就是害羞。他们或许就 是安静的人。must肯定是；may或许是；should应该是； would想必是。 13.D句意：约翰答应他的医生不再吸烟了，且从那时 起就再也不吸了。might not可能不；should not不应该； could not不可能（表示推测），不能（表示能力）；would有“决 心、决意”等意思。根据句意，可知D项正确。 14.D句意：根据航空交通规则，在上飞机前，你应该 关掉手机。should在本句中表示“义务的应该”。 15.A句意：一我到处都找不到我的钱包。—你 可能在购物的时候弄丢了。根据句意首先排除C、D两项； ca表示实际的可能性时，只能用于否定句、疑问句，故被排 除；C项表示推测时常用于肯定句。 16.B句意：你不可能已经饿了一你两个小时前才吃 的午饭。can't意为“不可能”；mustn't意为“绝对不可，被禁 止”。 17.A句意：她的自行车现在还在这儿，她不可能已经 离开了学校。此题考查情态动词表示推测的用法。must have十v-ed表示对过去情况的肯定性推测，只用于肯定句。 can't have-十u.ed表示“过去不可能做了某事”；shouldn't have十u.ed表示过去本不该做某事而实际上做了；needn't have十v.-ed表示过去本不必做某事但做了。 18.B句意：感谢你上周的辛勤工作。我想要不是你辛 勤的劳动我们不可能做成。本题是在具体语境中考查了委 婉的虚拟语气的用法。without you表达的是“如采没有你 辛勤的劳动的话”，结合句子前后内容，本题表达的是与过去 相反的虚拟语气，所以远择B项。 19,B句意：一对不起，前几天我不应该对你大喊大 叫的。一算了，我当时也有点失态。从对话上下文可看 出，空缺处应该是“本不该、本不应当”的意思，故用should not have done结构。需提醒一下，mustn't have done这一结 构在英语中不存在。 20.C句意：你没有必要一定要通过作者的姓名来找到 一本书。你可以根据这本书的标题（书名）来找到这本书。 must必须，一定；need有必要；can可以，能够；would会（表 示过去将来)。根据句意，只有C选项符合题意。 21.B句意：虽然这听起来是一项简单的任务，但需要 极大的细心。must必须；shall(警告，命令)该；should应该， 都不符合句意。may可能，符合语境要求。 22.B句意：我的家乡在三月份通常很暖和，但有时候 也会很冷。情态动词can可以有多种意思，如能力、推测。 但是can还可以有另外一种意思，即“有时候也会，有时候可 能会”。如：He is a nice person in general,but he can be dif- ficult sometimes..他总的来说是一个很不错的人，但有时也 很难相处。而must,should,would没有这层意思，故选B。 23.C句意：尽管大多数情况下彼得是一个很不错的 人，但有时候他也会很难相处。can在本句中表示理论上的 可能，在本句中意为“有时也可能”。 24.D句意：莉萨可能不想去旅行，她厌恶旅行。may well很可能，极有可能。如：It may well change forever the way you look at Greek art.这很可能会永远改变你对希腊艺 术的看法。 题源2虚拟语气 1.C本题考查的是虚拟语气。此处表示和过去事实相 ·2 反的情况，应该用should十have十过去分词。本来应该做， 而未做。 2.A本题考查虚拟语气与时态。前句表示对过去的 虚拟，而b山t之后表示过去的客规事实，故用一殷过去时态。 3.B would rather后应用虚拟语气，表示与现在时间 相反，用动词的过去式。 4,B句意：要没有我的英语老师的帮助，我不会在英语 写作比赛中获得第一名。本题考查虚拟语气用法，裉据句 意，可知主句应该使用否定式，而本句是与过去事实相反的 虚拟语气，故答案为B项。 5.D句意：医生建议你不应该在饱餐之后游泳。rec ommend后的宾语从句应用虚拟语气，谓语动词为“(should) +(not)do”,故选D。 专题九定语从句和名词性从句 十年高考母题原型训练 A组 题源1定语从句 1.C考查定语从句。先判断从句类型为定语从句，定 语从句中谓语explain后接what引导的宾语从句作宾语，因 此不缺少主千成分，排除B项，答案为C。 2.D考查定语从句。此处as引导的定语从句位于主 句之前，指代整个主句内容。意为：正如孩子们常有的情况 一样，医生到的时候Amy好多了。 3.B考查定语从句。此处关系代词which指代整个 主句引导非限制性定语从句。句意为：我们又发射了一颗人 造卫星，这是在今天的报纸上宣布的。故答案远B。 4.D考查定语从句。此处which指代前面整个主句 内容，引导非限制性定语从句。句意：莫言2012年被授予诺 贝尔文学奖，这使得中国长期以来的梦想之一成为现实。 5.C考查非限制性定语从句。由“.has surprised us all”可知从句缺少主语，应选关系代词，that不能用在非限制 性定语从句中，故C项符合题意。句意为：这是她第三次赢 得这个比赛，使我们都很吃惊。 6.C考查非限制性定语从句。从句缺少主语，由选项 可知C项符合题意。句意：据报道，这个城市的空气质量在 过去的两个月中已经得到改善。 7.A考查非限制性定语从句。C项what不能引导定 语从句：D项that不能用在非限制性定语从句中，从句缺少 主语，故用A项关系代词which。 8.B考查定语从句。“that was someone else's fault” 是定语从句，修饰先行词something,that在从句中作主语。