专题3.3 情态动词和虚拟语气（高考回眸 + 命题解密 + 误区警示 + 实战通关）课件-2027届高考英语一轮复习【语法攻坚突破·讲练闭环升级】

该高中英语高考复习课件聚焦“情态动词和虚拟语气”专题，依据高考评价体系梳理了情态动词推测、虚拟语气时间逻辑等核心考查维度，通过2021-2026年高考真题分析，明确了“情态动词表推测”“if条件句虚拟”等高频考点分布，归纳了单句语法填空、综合语法填空等常考题型。 课件亮点在于“真题回眸+考点精析+实战突破”的备考策略，如通过情态动词推测表格对比must/may/might的用法差异，虚拟语气if条件句三种时间结构解析，培养学生语言能力和思维品质。特设“写作误区警示”和“题组集训”，助力学生掌握答题技巧，教师可据此精准教学，提升复习效率。

专题3.3 情态动词和虚拟语气 2027届高考英语一轮复习 【语法攻坚突破•讲练闭环升级】 目录 contents 1. 回眸2021-2026年高考真题 2. 命题解密 3. 书面表达中情态动词和虚拟语气误区警示 4. 实战通关 I.单句语法填空 II.语法填空：基础训练(情态动词和虚拟语气专练) III.语法填空：高考真题(综合训练) 情态动词的核心考点 虚拟语气 1. 回眸高考真题 情态动词的核心考点 单句语法填空 1.(2026年高考英语I卷改编) Daji originated from the folk custom of trading goods, which _____________ (can trace) back to the Han Dynasty. 【解析】考查情态动词。句意：大集由民间商品交易习俗演变而来，可追溯至汉代。which指代其前的名词the folk custom，根据句意，这里应该用被动形式，表示“可追溯至......”。故填can be traced。 can be traced 2. (2025年高考英语北京卷改编) The truth, though, is what ___________________ (could guess) — there’s never anyone else here. Just me, Nick, and the quiet forest. 【解析】考查情态动词。句意：不过，真相正如所料 —— 这里从来没有其他人。只有我、和那片寂静的森林。根据句子结构来看，what后是一个表语从句，what泛指物，从句中缺少谓语，所以应该用被动形式，表示”可能被推测”。故填could be guessed。 could be guessed 3. (2024年全国高考英语甲卷改编)What _______________ (should do) with such a beautiful place? They wondered out loud. 【解析】考查情态动词。句意：这么漂亮的地方该怎么办? 他们大声地问道。短语do ... with ...，意为“对付、处理”，do和with都得带自己的宾语。此句中，what既是疑问词，也应是do的宾语，因此应用被动形式。故填should be done。 should be done 4. (2023年全国高考英语乙卷改编)The remarkable development of this city, which is consciously designed to protect the past while stepping into the modern world, means there is always something new to discover here, and I _______________________ (could photograph) Beijing for the next 50 years. 【解析】考查情态动词。句意：这座城市的显著发展，在有意识地保护过去的同时步入现代世界，意味着这里总是有新的东西等待发现，我可以在接下来的50年里一直拍摄北京。句子的后半部分“for the next 50 years” 表示的是一个 持续进行、贯穿未来很长一段时间 的动作。使用进行时强调的是一种持续不断的拍摄状态。故填could be photographing。 could be photographing 3. (2021 天津卷改编) It used to be that you __________________ (drive) for miles here without seeing another person, but now there are houses and people everywhere. 【解析】考查情态动词。句意：过去你可能开车数英里看不到一个人，但现在到处都是房子和人。根据句意和语境可知，这里介绍的是过去和现在的对比，表示“有可能”，故填could/might drive。 4. (2021 天津卷改编) —I honestly don’t think I’m going to be admitted.—Well, you never know! You ________________ (make) a better impression than you think. 【解析】考查情态动词。句意：——老实说，我觉得我不会被录取。——唉，谁知道呢！你给人的印象可能比你想象的要好。根据句意可知，此处表示的是有可能，故填may have made。 could/might drive may have made 1. (2024年1月高考英语浙江卷改编) However, though it’s nice to get a few cents off a pack of sausages, it would help even more if they ________________ (could offer) sometimes in smaller packs. 【解析】考查虚拟语气。句意：不过，虽然一包香肠能便宜几分钱是件好事，但如果它们有时能提供更小包装的话，那就更有帮助了。根据句意判断，这里用于条件从句中，表示对现在情况的假设，应用虚拟语气。句子主语是 they，指代前面的sausages，根据句意，更自然的是说“小包装被提供”，即被动语态。故填 could be offered。 could be offered 虚拟语气考点 单句语法填空 2. (2026·福建泉州·三模) As artist and anthropologist Desmond Morris put it, “It is as if the human species _____ (be) incapable of being artless regardless of material circumstances.” 【解析】考查虚拟语气。句意：正如艺术家兼人类学家德斯蒙德·莫里斯所说：“就好像人类这个物种，无论物质条件如何，都注定无法脱离艺术而存在”。本题中主句是 It is（现在时），说明说话人是在描述当下的一种看法或判断。“人类这个物种似乎不可能没有艺术”——是对现在普遍情况的一种假设性描述（并非事实，而是一种观点）。因此，从句要用与现在事实相反的虚拟语气，即动词用过去式。故填were。 were 3.（2026·湖北十堰·三模）I finally gathered my courage. “Dan,” I stammered out, “If I had the choice, I ___________________ (choose) you.” 【解析】考查虚拟语气。句意：我终于鼓起了勇气。“丹，”我结结巴巴地说，“如果我有选择的话，我（当初）会选你。”本题考查的是错综时间条件句（混合虚拟语气）。根据语境推理，说话人 “终于鼓起勇气”说明这是一个过去发生的场景——他/她此刻正在对 Dan 表白或坦白。“如果我有选择”这个条件，指的是在当时那个过去的情境下，如果有选择权的话，当初就会选你。故填would have chosen。 would have chosen 4.（2026·浙江宁波·模拟预测）Experts advise that we ________________ (not cut) out carbs totally. Instead, we are supposed to reduce refined grains and increase whole grains, beans and tubers. 【解析】考查虚拟语气。句意：专家建议我们不要完全戒掉碳水化合物。相反，我们应该减少精制谷物，增加全谷物、豆类和块茎类食物的摄入。表示“建议、命令、要求”如 advise, suggest, recommend, demand, order, insist, propose 等）动词后接 that 从句时，从句谓语用 “(should) + 动词原形” 的虚拟语气结构。故填(should) not cut。 (should) not cut 5.（2026·湖南长沙·二模）Some other fans were ordered that they _____________ (show) the very Western patterns that in turn exposed the Chinese to a different culture far away. 【解析】考查虚拟语气。句意：其他一些粉丝被命令展示那些非常西方的图案，而这些图案反过来又让中国人接触到一种遥远的异域文化。表示“建议、命令、要求”如 advise, suggest, recommend, demand, order, insist, propose 等）动词后接 that 从句，或变成被动形式、转化为名词时，其后的从句谓语用 “(should) + 动词原形” 的虚拟语气结构。故填(should) show。 (should) show 6.（2026·浙江杭州·模拟预测）Despite his rise to fame, Wang remains grounded, insisting that he _________________ (continue) his work as a delivery rider and writing poetry. 【解析】考查虚拟语气。句意：尽管成名，王计兵仍然脚踏实地，坚持继续做一名外卖骑手并写诗。表示“建议、命令、要求”如 advise, suggest, recommend, demand, order, insist, propose 等）动词后接 that 从句时，从句谓语用 “(should) + 动词原形” 的虚拟语气结构。故填(should) continue。 (should) continue 2.考点精析 否定形式—情态动词＋not＋动词原形 框架结构图 情态动词 常见情态动词 can / could, be able to will / would shall / should may / might need dare must ought to / have to 基本用法 肯定形式—情态动词＋动词原形 虚拟语气 对现在情况的虚拟 对过去情况的虚拟 对将来情况的虚拟 情态动词的核心考点 1．can/could和be able to的用法 (1)can和be able to都表示能力，意思上没多大区别。但can只有现在和过去时，而be able to则有更多的形式。但当成功地完成某一具体动作时，通常不用could而用was/were able to来表示。这时was / were able to相当于managed to，表示经过一番努力，终于能够完成某事。 Even after years of practice, I still can’t pronounce some Chinese tones correctly. After days of searching, the rescue team was able to find the missing hiker. (2)can/could表示猜测“可能”，一般用于疑问句和否定句，could比can的可能性小，也可用于肯定句。 Teenagers in senior school can be rebellious at times. 高中阶段青少年有时候可能会很叛逆。 The weather in April can be very unpredictable. 四月份的天气可能非常变幻莫测。 Too much screen time can affect your sleep. 过多的屏幕时间可能会影响你的睡眠。 The situation could be dangerous if we’re not careful. 如果我们不小心，情况可能会变得危险。 (3)can可以表示理论上的可能性，指常有的行为或情形，意为“有时会……”。 A good leader can sometimes be misunderstood by his team. 表示现实可能性，这包含两个方面的含义:一是指将来可能性，一是指现在的可能性，在这两种用法中，通常都不用can，但可用could (可以指现在，相当于may /might): 除非我们得到更多资金，否则我们可能会按时完成这个项目。(将来可能性) Unless we get more funding, we may [could, might] finish the project on time. Unless we get more funding, we can finish the project on time. 你的分析可能是正确的，但数据表明并非如此。(现在可能性) Your analysis could [may, might] be correct, but the data suggests otherwise. Your analysis can be correct, but the data suggests otherwise. 正 误 正 误 (4)表示请求、允许(表请求时，口语中常用could代替can使语气更委婉，回答时用can)。 Can / Could I have a look at your presentation slides in advance? Could you, by any chance, lend me your car this weekend? -- Could I turn on the GPS? I’m not sure of the route. -- Yes, you can. (否定答语可用No, I can’t. / I’m afraid not.) (5)表示惊异、怀疑、不相信的态度(主要用于否定句、疑问句或感叹句中)。 How can this be the final decision? We haven’t even reviewed all the evidence. How can we trust anything they say after all those broken promises? (6)can的特殊用法。 can but只好；can’t but不得不；can’t...too。再……也不为过，越……越好 The client’s demands are tough, but we can but try to meet them. 客户的要求很严格，但我们只能尽力去满足。 Under these circumstances, we can’t but terminate the contract. 在此情况下我方必须终止合同(法律文书)。 When choosing a life partner, you can’t be too careful. 选择人生伴侣再怎么谨慎都不过分。 2．may和might的用法 (1)表示允许、请求，might比may的语气更委婉一些。 —May I watch the cartoon Calabash Brothers now? —Yes, you may. (Yes, please.) —No, you mustn’t. (No, you’d better not.) (2)表示可能性时，might比may的可能性小，may表示的可能性比can / could小(主要用于肯定或否定句，疑问句用can/could代替)。 She may not attend the picnic, for the forecast predicts thunderstorms. 她可能不去野餐，因为预报有雷雨。 He cannot be the thief, for he was giving a keynote speech at that time. 他不可能是小偷，因为当时他正在做主题演讲。 (3)表示祝愿(不用might) May you achieve all your dreams! 愿你梦想成真！ May your future be as bright as your smile! 愿你的未来如笑容般灿烂。 (4)may / might as well最好还是……，不妨 Since you have a free afternoon, you might as well visit the museum. 既然你下午有空，不妨去参观一下那个博物馆。 I don’t really like coffee, but I might as well have one since everyone else is ordering. 我其实不太喜欢咖啡，但既然别人都点，我不妨也来一杯。 (5)may/might well很可能 She may well be the best candidate for this position. 她很可能是这个职位的最佳人选。 The project may well be completed ahead of schedule. 这个项目很可能会提前完成。 3. must, have to和ought to的用法 (1)must ①表示“必须，应该，一定要”。强调主观看法，只有现在时形式，否定式是must not (mustn’t)表“禁示，不允许”。must开头的问句，其否定回答要用needn’t或don’t have to来表达。 All visitors must report to the reception office. 所有访客必须到接待处报到。 All electronic devices must be switched off during takeoff. 起飞时必须关闭所有电子设备(航空规定)。 —Must I hand in the homework today? —Yes, you must. —No, you needn’t / don’t have to. ②表推测“一定”，用于肯定句。比may的语气强。 You must be tired after such a long journey. 走了这么远的路，你一定累了吧。 ③表示必然的结果。 For peace to prevail, war criminals must be brought to justice. 若要和平占上风，战犯必须被绳之以法。 ④还可表示主语固执、偏要做他人不希望做的事。 My son must touch everything in the store, no matter how many times I tell him not to. 我儿子偏要把店里每样东西都摸一遍，我跟他说多少次都没用。 (2)have to着重客观需要，能用于更多时态(过去时或将来时)。 If the test is positive, she will have to quarantine for two weeks. 如果检测呈阳性，她将不得不隔离两周。 (3)ought to表示义务和责任，意为“应该”，比should语气要强。 They ought to have arrived by now. They left two hours ago. 他们现在本该已经到了。他们两小时前就出发了。 4. need和dare的用法 (1)need表示“需要，必要”，只能用于否定句和疑问句。在肯定句中，常用must和have to代替。 We needn’t book a table in advance. The restaurant is usually empty. 我们不必提前订位，那家餐厅通常很空。 —Need I hurry to the teacher’s office right now? 我需要马上去老师办公室吗？ —Yes, you must. 是的，需要。 (2)dare表示“敢”，通常用于否定句、疑问句和条件状语从句中。 We daren’t leave the house while the storm is so strong. 暴风雨这么大的时候，我们不敢出门。 How dare you accuse me of lying when I have the evidence! 我有证据，你竟敢指责我撒谎！ If you dare break the rules, you’ll face serious consequences. 如果你敢违反规则，你会面临严重后果。 (3)need和dare的特殊用法 ①need表“需要”时，可用want, require代替。 Those houses need cleaning / to be cleaned desperately. 那些房间急需清洁。 ＝Those houses want / require cleaning / to be cleaned desperately. ②dare作实义动词时，在肯定句中要接to，在疑问句和否定句中to可省去。 We dare to be different, even if it means being misunderstood. 我们敢于与众不同，即使这意味着被误解。 They didn’t dare (to) object to the proposal, even though they disagreed. 他们虽然不同意，但不敢反对那个提议。 Did they dare (to) complain about the service after getting a free meal? 他们吃了免费餐之后还敢抱怨服务吗？ 5. will和would的用法 (1)will ①表示请求、建议，常用于第二人称。 Will you please accompany me to the conference? Will you be able to pick up Mr. Blair from the airport? ②表示意愿、决定、允许。 Whatever may happen, I will never allow yourself a little get disheartened. No matter how advanced we get, human nature will remain the same. ③表示习惯性动作或某种倾向，意为“总是，惯于”，通常用于第三人称。 I will always be there when you need a shoulder to cry on. 当你需要一个可以依靠的肩膀时，我会一直在那里。 We will always remember his generous hospitality. 我们将永远记住他的慷慨好客。 (2)would ①表示请求、建议，比will委婉，指现在时间，多用于第二人称。 How would you like it if your hard-earned work was dismissed without a second thought? 如果别人不假思索就否定了你辛苦得来的成果，你会乐意吗？ If she spent just half an hour on English reading every day, she wouldn’t be worrying about the coming exam now. 如果她每天花半小时做英语阅读，她现在就不会为即将到来的考试发愁了。 ②表示过去习惯性动作或某种倾向。 Every morning before the first bell rang, we would gather in the classroom and review vocabulary aloud together. 每天早读铃响前，我们都会聚在教室里一起大声复习词汇。 From the way he talks, people would think he is a native speaker of English. 从他说话的方式来看，人们大概会以为他英语是母语。 6. shall和should的用法 (1)shall 用于第一、三人称，在问句中表示征求对方意见或请求。 Shall I explain the key points of this passage once more before the exam? 要我在考试前把这篇短文的关键点再讲解一遍吗？ Shall she email the report to you before the meeting or bring a printed copy? 让她在会前把报告发邮件给您，还是带打印版过来？ 用于第二、三人称的陈述句中，表示命令、允诺或威胁等。 You shall finish your homework carefully as your teacher tells you to. 你要仔细完成作业，正如你老师告诉你的。 You shall have everything free on the journey! 旅行中的一切费用全免！ If you do not do it, it shall cost you your own life. 如果你不这么做，它将花费你自己的生命。 His life shall be at the mercy of the Duke of Venice. 他的生命将任凭威尼斯公爵处置。 (2) should ①表示责任、义务，意为“应该”。 A good friend should be honest and supportive, especially when you are in trouble. As a leader, you should listen to the opinions of your team members instead of making arbitrary decisions. ②表示惊讶语气，或者在说话人看来是不可思议的，尤其在以 why, who, how 等开头的修辞疑问句或某些感叹句中，意为“竟然”。 Who should be chosen as the monitor but the shyest student in class? Why should I give up my weekend to help you with a project you didn’t even prepare for? ③用于条件句，表示“假如，万一”；省去if，should可提至句首。 If you should fail to obey, legal action would be taken. (= Should you fail to obey, legal action would be taken.) Should the CEO be delayed, the board meeting would begin without him. 7. 情态动词表示推测或判断的用法 情态动词 对现在和未来的推测 对过去的推测 使用场合 must may/might can/could should must do must have done 肯定句 may/might do may/might have done 肯定句、否定句 can/could do can/could have done 否定句、疑问句 (could可用于肯定句) should do should have done 肯定句、否定句、疑问句 情态动词＋have done的用法： (1)should have done表示“过去本来应该做某事而实际上未做”，而shouldn’t have done则表示“过去本不应该做某事而实际上做了”。 You should have told me about the schedule change in advance — I waited at the station for two hours for nothing! 你本应该提前告诉我时间变动的——我在车站白等了两个钟头！ You shouldn’t have interrupted the professor while she was giving the lecture — it was extremely disrespectful. 你本不该在教授讲课时打断她的——那非常不尊重人。 (2)ought to have done表示“过去本应该做某事而实际上未做”，而ought not to have done则意为“过去本不应该做某事而实际上做了”。 I ought to have reviewed the notes before the exam — I failed to answer half of the questions. 我本应该在考试前复习笔记的——我有一半的问题都没答上来。 We ought not to have ordered so many dishes — we can’t finish even half of them. 我们本不该点那么多菜的——我们连一半都吃不完。 (3)needn’t have done表示“过去本无必要做某事而实际上做了”。 You needn’t have waited for me at the school gate — I told you I would take the subway directly to the museum. 你本没必要在学校门口等我的——我跟你说过我会直接坐地铁去博物馆的。 She needn’t have worried about her interview — she was offered the job on the spot. 她本没必要担心面试的——她当场就被录用了。 (4)could have done表示“过去本来有可能做某事而事实上未做到”。 With a bit more practice, our team could have won the basketball championship last month. 再多练一点的话，我们队上个月本可以赢得篮球冠军的。 They couldn’t have known about our plan unless someone had told them. 他们不可能知道我们的计划，除非有人告诉了他们。 (5)may/might have done表示“过去可能发生过某事”或“本来应该/可以做某事(实际上没做)”。 He may have avoided the failure if he had listened to his teacher’s advice. 如果他当时听了老师的建议，他本可以避免那次失败的。 I might have handled that situation more tactfully instead of losing my temper. 我本可以更巧妙地处理那个局面的，而不是发脾气。 虚拟语气 1. if条件句中的虚拟语气 if条件从句 从句的谓语形式 主句的谓语形式 表示现在情况 表示过去情况 表示将来情况 　　　 动词过去式(be的过去式用were) had＋过去分词 should＋动词原形 动词过去式(be的过去式用were) were to＋动词原形 should/would/could/might＋动词原形 should / would / could / might＋have＋过去分词 should / would / could / might＋动词原形 ①If we had enough time, we would practice more writing exercises every day. 如果我们有足够的时间，我们每天会练习更多写作练习。 ②If the rescue team had arrived ten minutes earlier, more lives would have been saved. 如果救援队早到十分钟，更多生命本可以被挽救。 ③If the new policy took / were to take / should take effect next month, many small businesses would face serious challenges. 万一新政策下个月生效，许多小企业将面临严峻挑战。 【提示】 (1)if引导的非真实条件句中如果出现should, were或had，可以把if省略，把should, were或had提到句首，其他语序不变。 If she had been here yesterday, she would have met her former friend. = Had she been here yesterday, she would have met her former friend. 如果她昨天来的话，她就会见到她的老朋友。 If he were more diligent, he would certainly rank top in the grade. = Were he more diligent, he would certainly rank top in the grade. 如果他更勤奋，他肯定能排年级第一。 If it should rain next week, we should have to put off the volleyball match. = Should it rain next week, we should have to put off the volleyball match. 如果下星期下雨，我们就要推迟排球比赛。 (2)当if条件句中主、从句表示的动作或行为所发生的时间不一致时，被称为错综时间条件句，这时动词的形式应根据动词所指的时间进行调整。 If she knew more about history, she would have answered that question correctly in the quiz. 如果她历史知识更丰富，她那次测验就能正确回答那个问题了。 (3)有时假设的情况并不用条件句表现出来，而是暗含在上下文中，比如通过without, or, otherwise, but for等词或短语来表示。 He was wearing his seatbelt; otherwise, he would have been seriously injured in the crash. 他系了安全带；否则的话，他在那次撞车中会受重伤的。 But for your constant encouragement (If there weren’t your constant encouragement), I would still be hiding in my comfort zone. 要不是你持续的鼓励，我现在还会躲在舒适区里。 Without your timely help (If it hadn’t been your timely help), we would have missed the last train to the airport. 如果没有你的及时帮助，我们本会错过最后一趟去机场的火车。 I should have left home earlier; or else (if I had left home earlier), I wouldn’t have missed the beginning of the movie. 我本应该早点出门的；否则的话，我就不会错过电影的开头了。 2. should＋do...结构的虚拟语气 一些表示命令、要求、请求、建议的动词，后面接宾语从句时，从句谓语要用“should＋动词原形”，should可以省略，但不能换成其他的情态动词，常见的这类动词有：order, command, require, request, demand, advise, suggest (建议), propose, recommend, insist (坚持，坚决要求)等。 建议、命令、要求虚拟语气顺口溜：一坚持，二命令，三建议，四要求。即一个坚持(insist)，两个命令(order, command)，三个建议(suggest, propose, advise)，四个要求(demand, require, request, ask) 。 以上这些动词变成名词后，其后所接的名词性从句，如主语从句、表语从句和同位语从句，从句谓语也要用“should＋动词原形”来表示，should同样可以省略，但不能换成其他的情态动词。 This position requires that the applicant (should) have at least three years of work experience. 这个职位要求申请者至少有三年工作经验。 The teacher advised that we (should) read the original English novel instead of the translated version. 老师建议我们读英文原版小说，而不是翻译版。 The general ordered that all soldiers (should) retreat to the base immediately. 将军命令所有士兵立即撤回基地。 She insisted that he (should) apologize to her in public. 她坚持要求他当众向她道歉。 The committee put forward a proposal that the meeting (should) be postponed to next week. 委员会提出了一项提议，会议应该推迟到下周。 Your suggestion that we (should) go swimming is out of the question; it’s too cold today. 我们不可能按你的建议去游泳，因为今天太冷了。 3. wish后面接宾语从句时，从句谓语通常要用虚拟语气，即与现在事实相反时，谓语用过去式(be的过去式用were)；与过去事实相反时，谓语用过去完成时；与将来事实相反时，谓语用“could/would/might＋动词原形”。 She wishes she were a superhero and could save the world. 她希望自己是超级英雄，能拯救世界。 He wishes he could play the piano like a professional. 他希望自己能像专业人士一样弹钢琴。 4. would rather“宁愿……”后接宾语从句时，谓语动词要用虚拟语气，即与现在和将来事实相反，谓语动词用一般过去时(be的过去式用were)；与过去事实相反，谓语动词用过去完成时。 I’d rather you didn’t stay up so late every night; it’s bad for your health. 我真希望你不要每天都熬夜到那么晚；那对身体不好。 We’d rather we had chosen the other route; we’ve been stuck in traffic for an hour. 我们宁愿当时选择了另一条路；我们已经堵车一小时了。 5. It is (high / about) time (that) ...意为“是……的时候了”，that在此引导定语从句，从句谓语要用虚拟语气，从句谓语的形式有两种：一种是用一般过去式；另一种是用“should＋动词原形”，需要注意的是，这里的should不能省略。 It’s high time that the government should take stricter measures to reduce traffic accidents. 政府是时候该采取更严格的措施来减少交通事故了。 注意：此结构和It is the first (second, third ...) time that ......有区别。后者引导的从句中，常用现在完成时形式。 It is the first time that a private company has been allowed to build a water recycling plant in Australia, he says. 这是私营企业首次获准在澳大利亚建设再生水厂，他说。 6. if only从句中的虚拟语气 if only引导的感叹句，其虚拟语气的结构与wish后接宾语从句中的虚拟语气的结构相同。 If only the government had attached more importance to environmental protection earlier! 要是政府早点更加重视环境保护就好了！ 7. as if, as though引导的表语从句和方式状语从句中常用虚拟语气，其虚拟语气结构与wish后接宾语从句中的虚拟语气的结构相同。 After the renovation, the old house looked as if it had never been damaged by the fire. 翻修后，那座老房子看起来仿佛从未被大火损坏过。 She speaks English so fluently that it seems as if she were a native speaker. 她英语说得如此流利，仿佛她是个母语者。 3. 写作中情态动词和虚拟语气误区警示 1. 表达的单调性 例如：在写一封建议信时，如果向好友表达建议，重复使用You should...既显得单调，同时“你应该......”等强硬的语气又会影响交际效果。我们可以灵活多样地表达建议，如You’d better.../You might as well.../Why not...？等。 Maybe you’d better clarify what you meant by that message. 或许你该说清楚那条信息到底什么意思。 The couple shared a house but never spoke; they might as well have been strangers. 他们同住一个屋檐下却从不交谈，与陌生人无异。 这对夫妇简直就像是陌路人。 2. 情态动词搭配错误 We’d not better take this shortcut through the woods at night; it’s too dangerous. We’d better not take this shortcut through the woods at night; it’s too dangerous. --- Need we take so much luggage for the three-day trip? --- Yes, you need. --- Yes, you must. The team was so excited about the win that no one dared mention the upcoming challenges. The team was so excited about the win that no one dare (dared to) mention the upcoming challenges. 误 误 误 正 正 正 4. 实 战 通 关 题组一　情态动词集训 I.单句语法填空 1. The truth ________ come out in the end, no matter how hard they try to hide it. 【解析】must 句意：真相最终必然会水落石出，不管他们如何试图掩盖。根据句意为判断，此处表示“（肯定的）推测”。故填must。 2. There ________ be no excuse for such irresponsible behavior during the crisis. 【解析】can 句意：在危机期间，这种不负责任的行为绝无任何借口可言。根据句意为判断，此处表示“（否定的）推测”。否定推测一般用can’t / couldn’t + 动词原形。故填can。 3. ________ I hand in my essay a day later? I need more time to polish it. 【解析】May / Can / Could 句意：我可以晚一天交论文吗？我需要更多时间润色。may一般表示非常正式、礼貌的语气，适合对陌生人或长辈使用。适用场景：正式场合、书面请求，或对需要特别尊重的人。Can / Could语气上更加委婉。故填May / Can / Could。 4. She ________ have been very nervous during the interview; otherwise she would have answered that question better. 【解析】must 句意：她面试时一定非常紧张；否则她本可以把那个问题回答得更好的。must此处表示肯定推测。must + 现在完成时表示对过去情况的确定性推测(根据已有迹象判断)。本句中，事实是她没答好，所以推测她当时紧张了 (原因)。故填must。 5. When I was in high school, I ________ get up at 6:00 every morning and read English aloud for half an hour. 【解析】would 句意：我上高中时，每天早上6点都会起床，然后大声读半小时英语。would可以表示过去习惯性动作。“would + 动词原形”用于描述过去规律性、重复性的行为(常搭配时间频率词如 every Sunday, always, often)。本句中every morning (每天早晨)明确提示这是过去的固定习惯。 6. All participants in the competition ________ submit their works before December 1st. 【解析】shall 句意：所有参赛者必须在12月1日之前提交他们的作品。shall在正式规则中表示强制性义务(≈ must)，常见于法律、规章或权威指令。现代英语中，must或are to更口语化。但shall保留正式性。 7. If the weather is this hot tomorrow, we ________ as well give up the idea of playing tennis in the afternoon. 【解析】may / might 句意：如果明天天气这么热，我们下午还是放弃打网球吧。may/might as well是固定搭配。may / might as well + 动词原形表示“不妨；还不如”，用于建议或无奈接受某种选择。本句中因天气太热，打网球不现实，因此“不如放弃”。may as well稍正式，语气更中性。might as well更口语化，隐含更多“无奈”或“勉强”。 8. We ________ have checked the weather forecast before hiking. 【解析】should 句意：我们远足前本应查看天气预报的。should (not) have + 过去分词表示与过去事实相反的假设，强调“本应做而未做”或“本不应做却做了”。语气上表示自责/遗憾或批评/指责。 9. He arrived late for the meeting. He ________ have been caught in a traffic jam. 【解析】must 句意：他开会迟到了。他一定是遇上堵车了。must have + 过去分词表肯定推测。根据开会迟到(客观证据)，推断路上堵车(确定性结论)。语气强度90%以上把握(几乎确定)。前半句He arrived late for the meeting.是推测的依据，需用must have been caught 连接因果。 10. She ________ not come to the office tomorrow; she can work from home. 【解析】need 句意：她明天不必来办公室；她可以在家办公。need not表示“不必”。need 作情态动词时，直接加 not 构成否定(无需助动词)。语义上相当于don’t need to (不需要)，但后者更正式或书面化。后半句she can work from home提供了“无需担心”的理由，与 need not的逻辑完美契合。 题组二　虚拟语气集训 1. “How I wish I ________ (go) to the concert tonight, but I have to babysit my little brother. 【解析】could join 句意：我多希望今晚能去听音乐会啊，但我得照顾弟弟。How I wish表达对现在或未来的强烈愿望，但隐含现实无法实现的遗憾。需接与事实相反的虚拟语气，动词用过去式(表现在)或could/would + 动词原形(表能力/意愿)。这里用could go表示能力上希望做到但实际不能(因不得不照顾弟弟)。 2. If I had learned to play the guitar when I was young, I ________ (join) the band. 【解析】would have joined 句意：如果我小时候学了吉他，我就加入乐队了。根据前面从句中的时态可知，此空表示对过去事情的假设，应该用“would + have done”结构。 3. Had the teacher not explained it again, the class ________ (stick) on that problem. 【解析】would have been stuck 句意：如果老师没再解释一遍，全班都会卡在这道题上。前句是省略 if 的倒装句，表示与过去事实相反的假设(实际老师解释了)。主句需用 would/could/might + have + 过去分词表假设结果。be stuck on是固定搭配，意为“被卡住/困在...”。全句逻辑是“若老师未解释，班级会卡在题目上”。→ 但实际老师解释了，班级未受困。 4. One of the main requirements is that applicants ________ (have) at least two years of experience. 【解析】(should) have 句意：主要要求之一是申请者至少有两年工作经验。名词requirement后接 that从句时，需用 (should) + 动词原形的虚拟语气形式。should可省略(尤其美式英语)，但保留更正式。主句动词(如 propose, suggest, recommend, insist)表示建议、要求、命令时，从句用虚拟语气。 5. The painting was so vivid that it seemed as if the figures in it ________ (come) to life; never before had I seen such a masterpiece. 【解析】had come 句意：那幅画如此逼真，仿佛画中的人物都活了过来；我以前从未见过这样的杰作。as if / as though引导的从句需用虚拟语气，表示“与事实相反的行为或状态”。根据主句时态(was so vivid, 过去式)，从句需用过去完成时(had come)，表示“假装某事在过去未发生“但实际已发生”。 6. The regulations require that all passengers ________ (check) before boarding. 【解析】(should) be checked 句意：规定要求所有乘客登机前接受检查。动词 require后接that从句时，需用“(should) + 动词原形”的虚拟语气形式。should可省略(尤其美式英语)，但保留更正式。从句中主语all passengers是动作check的承受者，需用被动语态be checked。 7. Only after failing the exam did she admit that she ________ (follow) her teacher’s advice. 【解析】should have followed 句意：直到考试不及格后，她才承认自己本应该听从老师的建议的。should have + 过去分词表示“过去本应做某事却未做”，强调后悔或遗憾。时间逻辑：Only after failing the exam (考试不及格)是过去时间点。反思的内容(follow her teacher’s advice)发生在考试不及格前，属于过去的时间，需用完成时should have followed。 8. He talks about the world as if he ________ (travel) everywhere, but he’s never left his hometown. 【解析】had travel(l)ed 句意：他谈论起世界来，仿佛他去过所有地方一样，但他从未离开过家乡。as if / as though引导的从句需用虚拟语气，表示“与事实相反的比较”。此处he’s never left隐含“假设去过，但实际没去过”，故用虚拟语气。此空是对过去事情的假设，故填had travel(l)ed。 9. If only she ________ (choose) to study medicine instead of law — she might have saved more lives. 【解析】had chosen 句意：要是她当时选择学医而不是法律就好了——她本可能挽救更多生命。If only+过去完成时(had done)表示“与过去事实相反的强烈愿望”。她当时选择学医，说明是过去的动作。故需用 had chosen 表达“本可发生却未发生”的遗憾。 10. But for the central bank’s intervention, the financial crisis ________ (wipe) out millions of savings. 【解析】might / would have wiped 句意：要不是中央银行的干预，金融危机本会抹去数百万人的储蓄。But for是虚拟语气的正式表达，相当于If it had not been for或 Without，表示“如果没有某事物，结果会不同”。主句需用虚拟语气：would have wiped是确定性推测(必然抹去)；might have wiped：可能性推测(可能抹去，语气稍弱)。 题组三　情态动词和虚拟语气专练(1) This summer’s heatwaves might have seemed ordinary, but the records we see must be a warning. Without action, such temperatures 1 soon become normal, turning cities into “baking pans”. Thermometers should not be rising so fast, yet they are, threatening the elderly. We cannot pretend we are innocent. The primary driver of this crisis 2 be our relentless consumption of fossil fuels. Burning coal and gas releases vast amounts of greenhouse gases, trapping heat like a thick blanket over our planet. The world cannot afford to ignore this reality any longer. Without immediate intervention, the polar ice caps 3 melt faster than scientists had predicted, leading to catastrophic flooding in coastal cities. Governments 4 prioritize renewable energy, yet many still hesitate, as if they 5 (be) unaware of the urgency. To make matters worse, deforestation continues at an alarming rate, and without forests, we 6 lose our planet’s natural cooling system. Every citizen should adopt a low-carbon lifestyle, because every small action counts. The effects of this crisis 7 be more severe than we imagine. If we fail to reduce carbon emissions today, our children might not have a chance to see polar bears in the wild. But for the collective efforts of environmental activists, public awareness 8 (remain) low. If only world leaders had taken stronger action a decade ago, we might not be facing such extreme weather now. However, it is not too late to make a difference. We must act now, for there is no Planet B. 9 we continue on this path of destruction, future generations would never forgive us. It is high time that we 10 (take) responsibility for our planet and built a sustainable future together. We must remember that the earth does not belong to us; we belong to the earth. 1. would 2. must 3. might 4. should / ought to 5. were 6. would 7. could 8. would have remained 9. Should 10. took 【导语】本文围绕全球高温现象，从原因、影响与行动三个层面展开论述，指出极端天气并非自然波动，而是人类过度消耗化石燃料的直接后果。文章不仅呼吁政府优先发展可再生能源、公民践行低碳生活，更强化了紧迫感与劝诫色彩。全文旨在唤醒读者对气候危机的清醒认知，并鼓励从当下做出改变。 1. would 考查含蓄虚拟语气（without + 名词，对将来推测）。句意：如果不采取行动，这样的高温很快就会成为常态。Without action 等于 If we don’t act now，是对将来情况的假设，主句用 would + 动词原形表示“将会（必然趋势）”。 2. must 考查must 表肯定推测（高确定性）。句意：这场危机的主要驱动力一定是我们对化石燃料的无休止消耗。基于科学共识，作者对原因有充分把握，用 must be 表示“肯定是”，语气最强。 3. might 考查含蓄虚拟语气（without + 名词，对将来可能性的弱推测）。句意：如果不立即干预，极地冰盖可能会比科学家预测的融化得更快。might melt 比 would melt 语气更委婉、不确定，符合科学推测的严谨性（“有可能但不绝对”）。 4. should / ought to 考查情态动词表义务、责任（道义上“应该”）。句意：各国政府应该优先发展可再生能源。should / ought to 均表示“按理应当”，语气弱于 must（强制），强于 could（建议）。两者在此处完全可互换。 5. were 考查as if 引导的表语从句，对现在虚拟（be动词一律用 were）。句意：……仿佛它们没有意识到紧迫性（实际上它们应该意识到）。as if 后接 were，表示与现在事实相反的假设。不论主语是 they 还是 he，be 动词都用 were。 6. would 考查含蓄虚拟语气（without + 名词，对将来必然结果）。句意：没有森林，我们将会失去地球的自然降温系统。would lose 是对“无森林后果”的确定性推演，比 might 语气更肯定。 7. could 考查could 表可能性推测（比 may 委婉，比 might 稍肯定）。句意：这场危机的影响可能比我们想象的更严重。could be 表示“有可能”，语气介于 may 和 might 之间，常用于客观陈述不确定后果。 8. would have remained 考查含蓄虚拟语气（but for + 名词，对过去虚拟）。句意：要不是环保人士的集体努力，公众意识本会一直很低。but for 等于 If it had not been for，主句用 would have done 表示“过去本会发生但实际未发生”。 9. Should 考查倒装虚拟语气（省略 if，将 should 提前，表将来假设）。句意：万一我们继续走上这条毁灭之路，后代将永远不会原谅我们。Should we continue ＝ If we should continue，表示对将来的“万一”假设，语气正式且具有警告色彩。 10. took 考查It is high time that + 过去时（固定虚拟结构）。句意：是时候我们承担起对地球的责任了。It is high time that 后必须用一般过去时（took），表示“早该做了，现在该做了”，不用 should take（不可省 should）。 题组三　情态动词和虚拟语气专练(2) Oil Crisis: What If We Had Prepared Earlier? The global oil market is trembling. Prices are rising, supply is shrinking, and panic is spreading. But what if we 1 (see) this coming a decade ago? If major economies 2 (invest) heavily in renewable energy back then, they would not be begging for oil today. If every nation had reduced its dependence on fossil fuels, the current crisis might have been avoided entirely. Yet here we are, as if we 3 (learn) nothing from the 1970s oil shocks. Without Russian oil, Europe 4 (freeze) last winter. Without OPEC’s production cuts, gas prices would not have hit record highs. But for the war in Ukraine, energy supplies 5 (remain) stable. Had Middle Eastern countries maintained their output, inflation would not have spiraled out of control. If only Western leaders had acted sooner, they would have built enough reserves to survive the storm. Instead, they are now negotiating desperately, as if they 6 (unprepare) completely. What if we treated this crisis as a final warning? If every country 7 (shift) to solar and wind power within the next five years, oil dependence would gradually fade. Should the world unite around clean energy, future generations would never suffer from oil wars. Without this crisis, we 8 (continue) our wasteful habits forever. But now, we must act. It is high time that we 9 (transform) our energy systems. Without immediate action, our children would inherit a planet choked by conflict and carbon. We had better remember that oil will not last forever. 10 we ignore this truth, history would never forgive us. If only we had started this transition twenty years ago — but perhaps it is not too late to begin today. 1. had seen 2. had invested 3. had learned 4. would have frozen 5. would have ramained 6. were unprepared 7. should lift / shifted 8. might have continued 9. transformed 10. Should 【导语】本文围绕“全球石油供应紧张”这一热点话题，以 “虚拟语气” 为主线，从历史遗憾、现实后果与未来行动三个层面展开论述。文章通过大量对过去、现在和将来的虚拟假设，以及含蓄虚拟、倒装虚拟和固定虚拟结构，引导读者反思能源政策的滞后性，并警示若不及时转型，将给后代留下无法承受的代价。 1. had seen 考查虚拟语气（对过去假设），表示“本已预见”。句意：要是我们在十年前就预见到了这一切呢？What if 引导的虚拟，针对“十年前”这个过去时间点，表示与过去事实相反的假设，从句用过去完成时。 2. had invested 考查混合虚拟（从句过去 → 主句现在）。句意：如果主要经济体那时大力投资可再生能源，现在就不会求着要石油了。从句“back then”提示对过去的假设，用 had done；主句“today”提示对现在的假设，用 would not be doing。 3. had learned 考查as if 引导的虚拟语气（对过去）。句意：我们却表现得仿佛从70年代石油危机中什么都没学到。as if 后表示与过去事实相反（实际上学过，只是没吸取教训），用过去完成时。 4. would have frozen 考查含蓄虚拟语气（without + 名词，对过去假设）。句意：没有俄罗斯的石油，欧洲去年冬天本会冻僵。Without Russian oil = If there had been no Russian oil，对过去虚拟，主句用 would have done。 5. would have remained 考查含蓄虚拟语气（but for + 名词，对过去假设）。句意：要不是乌克兰战争，能源供应本会保持稳定。But for = If it had not been for，表示与过去事实相反的假设，主句用 would have remained。 6. were unprepared 考查as if 引导的虚拟语气（对现在）。句意：……仿佛他们完全没有准备好。as if they were unprepared 表达与现在事实相反（他们其实本应有所准备），be动词用 were。 7. shifted / should shift 考查虚拟语气（对将来假设）。句意：如果每个国家在未来五年内都转向太阳能和风能……对将来的虚拟，从句可用 一般过去时 或 should do，主句用 would do。 8. might have continued 考查含蓄虚拟语气（without + 名词，对过去假设）。句意：没有这场危机，我们本可能会永远继续浪费的习惯。Without this crisis 表示对过去的假设，might have continued 表达“本可能继续但实际已改变”。 9. transformed 考查固定虚拟结构（It is high time that + 一般过去时）。句意：是时候彻底改造我们的能源体系了。It is high time that 后必须用一般过去时（transformed），不可用 should transform。 10. Should 考查倒装虚拟语气（省略 if，对将来假设）。句意：万一我们忽视这一真相，历史将永远不会原谅我们。Should we ignore = If we should ignore，表示对将来的“万一”假设，语气正式且带有警告意味。 (2018年6月浙江高考改编)Few people I know seem to have much desire or time to cook. Making Chinese ______ (dish) is seen as especially troublesome. Many westerners _________ come to China cook much less than in their own countries once they realize how cheap ___ can be to eat out. I still remember _______ (visit) a friend who’d lived here for five years and I ____________ (shock) when I learnt she hadn’t cooked once in all that time. While regularly eating out seems to ____________ (become) common for many young people in recent years, it’s not without a cost. The obvious one is money; eating out once or twice a week may be __________ (afford) but doing this most days adds up. There could be an even ______ (high) cost on your health. Researchers have found that there is a direct link between the increase in food eaten outside the home and the rise in _______(weigh) problems. If you are not going to suffer this problem, then I suggest that the next time you ________ (go) to your mum’s home for dinner, get a few cooking tips from her. Cooking food can be fun. You might also begin to notice the effects not only on your health but in your pocket. II.语法填空：高考真题(综合训练) dishes who/that it visiting was shocked have become affordable higher weight (should) go 【导语】本文探讨了现代人外出就餐增多的现象及其潜在危害，通过中西方对比，分析经常外食对经济与健康的影响，最终建议向家人学习烹饪以改善健康并节省开支。 1. dishes 考查可数名词复数。句意：做中国菜被认为特别麻烦。dish指具体菜肴时为可数名词，需用复数表泛指。 2. who/that 考查定语从句引导词(关系代词)。句意：许多来中国的西方人...。先行词westerners指人，从句缺主语，可用who/that。 3. it 考查it作形式主语。句意：他们发现外出就餐很便宜。真正主语是to eat out，需用it作形式主语。 4. visiting 考查动名词。句意：我记得拜访过一位朋友。此空考查remember doing结构，remember后接动名词表已发生的动作。 5. was shocked 考查过去时被动语态。句意：我得知她从未做饭时很震惊。主语I与shock构成被动关系，需用be shocked。 6. have become 考查现在完成时。句意：近年来外出就餐已变得普遍。此空用现在完成时表持续影响。句中的in recent years经常与现在完成时连用。 7. affordable 考查系表结构(形容词做表语)。句意：每周外出就餐一两次或许负担得起。may be后需接形容词affordable (可承担的)。 8. higher 考查形容词比较级。句意：对健康可能有更高代价。even修饰比较级，与前半句money形成对比。 9. weight 考查名词固定搭配。句意：与体重问题增加有直接关联。weight problems是固定短语，指肥胖等健康问题。 10. (should) go 考查虚拟语气。句意：我建议你下次去母亲家吃饭时...。suggest that + 虚拟语气，suggest表建议时，从句用(should)+动词原形。 Thank you $