暑假作业09 情态动词与虚拟语气专项训练（巩固培优）高二英语通用版

**基本信息** 聚焦情态动词功能分类与虚拟语气“时态倒退”规则，构建“定义-用法-应用”逻辑链条，通过多题型训练提升语言运用与逻辑思维能力。 **专项设计** |模块|题量/典例|方法提炼|知识逻辑| |----|-----------|----------|----------| |核心知识点精讲|情态动词5类功能、虚拟语气3大用法|情态动词按“能力/许可/推测/义务/特殊”分类；虚拟语气“时态倒退”规则（现在→过去时，过去→过去完成时）|从定义出发，先分述情态动词功能与虚拟语气规则，再结合高频考点（如推测must/can't、名词性从句should+原形）形成应用逻辑| |综合练习|单选10题、语法填空20题、句型转换4题等|针对推测题用“肯定must/否定can't/可能may”；虚拟语气题按“与现在/过去/将来事实相反”匹配时态|题型覆盖基础辨析到语境应用，典例含易错点（如needn't与mustn't区别、suggest后宾语从句虚拟），实现知识迁移|

完成时间： 月 日 今日打卡：☐ 已完成 用时： min 自评勋章： 作业09 情态动词与虚拟语气专项培优 一、核心定义 情态动词是一类辅助动词，无人称和数的变化，后接动词原形，用于表达说话人的情绪、态度、语气，包括推测、能力、许可、义务、意愿、建议等含义。虚拟语气是一种特殊的动词语气，不用于陈述客观事实，专门用来表达假设、愿望、猜测、建议、遗憾、不可能发生或与事实相反的情况，常与情态动词搭配使用，是高中英语语法的核心重难点。 二、核心知识点精讲 （一）情态动词核心用法 情态动词主要包括can/could、may/might、must、shall/should、will/would、need、dare等，核心功能分类如下： 1. 能力：can表示现在的能力，could表示过去的能力；be able to可表示具体某次成功的能力，可用于各种时态。 2. 许可：can/may表示口语中的许可，could/might语气更委婉；mustn’t表示“禁止”，needn’t表示“不必”。 3.推测（高频考点）：must用于肯定句，表“一定、想必”；can’t用于否定句，表“不可能”；may/might/could表“可能、也许”，不确定性较强。 4.义务与建议：must表示主观必须、一定要；have to表示客观不得不；should/ought to表示“应该”，侧重建议、责任、情理；shall用于一、三人称疑问句表征求意见，二、三人称陈述句表命令、承诺、警告。 5.特殊用法：would表过去习惯性动作、委婉请求；need/dare作情态动词多用于否定句和疑问句，无人称变化，后接动词原形。 （二）虚拟语气核心用法 虚拟语气核心规则： 时态倒退，即现在事实→过去时，过去事实→过去完成时，将来事实→过去将来时。 1. if条件状语从句虚拟语气 与现在事实相反：从句用一般过去时，主句用would/could/might/should+动词原形； 与过去事实相反：从句用过去完成时，主句用would/could/might/should+have done； 与将来事实相反：从句用一般过去时/should do/were to do，主句用would/could/might/should+动词原形。 2. 名词性从句虚拟语气 表示建议、命令、要求的动词（suggest、advise、order、demand、require等）后的宾语从句， 从句用(should)+动词原形，should可省略； It is important/necessary/strange that...从句、wish宾语从句、would rather从句均需使用虚拟语气。 3. 特殊句式虚拟语气 It is (high) time that...从句用一般过去时；as if/though引导方式状语从句，根据事实与否使用对应虚拟时态。 一、单项选择 1．You ________ be quiet in the library. Everyone is reading carefully. A. can B. must C. may D. could 【答案】B 【解析】考查情态动词表义务。句意：你在图书馆必须保持安静，所有人都在认真阅读。A. can能够、可以；B. must必须（主观强制要求）；C. may可以、可能；D. could能够、委婉请求。根据图书馆的规则和语境，此处是强制要求，故选B。 2．The light is on in his room, so he ________ be at home. He can’t be out. A. must B. may C. might D. could 【答案】A 【解析】考查情态动词表推测。句意：他房间的灯亮着，所以他一定在家，不可能外出。must用于肯定句表示肯定、大概率推测，一定；may/might/could均表示不确定的“可能”。根据后句“He can’t be out”可知推测语气十分肯定，故选A。 3．You ________ worry about me. I’m old enough to take good care of myself. A. mustn’t B. can’t C. needn’t D. shouldn’t 【答案】C 【解析】考查情态动词词义辨析。句意：你不必担心我，我已经长大，可以照顾好自己。A. mustn’t禁止；B. can’t不能、不可能；C. needn’t不必；D. shouldn’t不应该。根据句意可知，此处表示无需担忧，故选C。 4．If I ________ you, I ________ accept the invitation at once. A. am; will B. were; would C. was; will D. is; would 【答案】B 【解析】考查if虚拟语气（与现在事实相反）。句意：如果我是你，我会立刻接受邀请。与现在事实相反的虚拟条件句，从句主语无论单复数，be动词统一用were，主句用would+动词原形。故选B。 5．He suggested that we ________ a meeting to discuss the problem. A. held B. hold C. will hold D. are holding 【答案】B 【解析】考查名词性从句虚拟语气。句意：他建议我们开会讨论这个问题。suggest表示“建议”时，其后宾语从句需用(should)+动词原形，should可省略，因此空处填动词原形hold。故选B。 6．I ________ late last night, but I watched a movie and stayed up till midnight. A. should have slept B. must have slept C. could sleep D. should sleep 【答案】A 【解析】考查情态动词+have done虚拟结构。句意：我昨晚本应该早睡，但我看了电影熬夜到午夜。should have done表示本应该做某事却没做，含遗憾语气；must have done表示过去一定做了某事。根据转折语境可知是本该早睡却熬夜了，故选A。 7．It is high time that we ________ effective measures to solve the problem. A. take B. took C. will take D. have taken 【答案】B 【解析】考查特殊句式虚拟语气。句意：是我们采取有效措施解决这个问题的时候了。It is (high) time that...为固定虚拟句式，从句谓语动词统一用一般过去时。故选B。 8．You ________ cross the road when the traffic light is red. It’s dangerous. A. needn’t B. shouldn’t C. mustn’t D. wouldn’t 【答案】C 【解析】考查情态动词表禁止。句意：红灯时你绝对不能过马路，这很危险。mustn’t表示明令禁止、绝不允许，语气最强；shouldn’t表示不应该，语气委婉。根据交通规则的硬性规定，选C。 9．If you had told me the truth earlier, I ________ you yesterday. A. would help B. helped C. would have helped D. had helped 【答案】C 【解析】考查if虚拟语气（与过去事实相反）。句意：如果你早点告诉我真相，我昨天就会帮你了。从句为had done（过去完成时），说明是与过去事实相反的虚拟，主句需用would/could/should/might+have done结构。故选C。 10．— ________ I borrow your dictionary? — Sure, here you are. A. Must B. Should C. May D. Need 【答案】C 【解析】考查情态动词表请求。句意：——我可以借你的字典吗？——当然，给你。may用于疑问句，表委婉请求许可，符合语境；must必须，should应该，need需要，均不符合请求语境。故选C。 二、单句语法填空 11．It is strange that he ________ (refuse) such a good opportunity. 【答案】(should) refuse 【解析】考查虚拟语气。句意：他竟然拒绝了这么好的机会，真是奇怪。It is strange/important/necessary that...句型中，从句需用(should)+动词原形，should可省略。故填(should) refuse。 12．The doctor ordered that the patient ________ (stay) in bed for a week. 【答案】(should) stay 【解析】考查虚拟语气。句意：医生嘱咐病人卧床休息一周。order表示“命令”，其后宾语从句用(should)+动词原形的虚拟结构。故填(should) stay。 13．If I ________ (have) more time yesterday, I would have finished my homework. 【答案】had had 【解析】考查与过去事实相反的虚拟语气。句意：如果我昨天有更多时间，我就写完作业了。主句为would have done，从句需用过去完成时had done。故填had had。 14．You ________ (not) park here! It’s a no-parking area. 【答案】mustn’t 【解析】考查情态动词表禁止。句意：你禁止在此停车！这里是禁停区。根据语境和规则要求，此处表示明令禁止，用mustn’t。故填mustn’t。 15．She looks unhappy. She ________ (have) quarreled with her friend just now. 【答案】must have 【解析】考查情态动词推测用法。句意：她看起来不开心，她刚才一定和朋友吵架了。must have done表示对过去发生事情的肯定推测，符合语境。故填must have。 16．I would rather you ________ (go) with me tomorrow. 【答案】went 【解析】考查would rather虚拟语气。句意：我宁愿你明天和我一起去。would rather后接从句，表将来的虚拟时，从句谓语用一般过去时。故填went。 17．We ________ (not) worry about the exam. It is not difficult at all. 【答案】needn’t 【解析】考查情态动词。句意：我们不必担心考试，它一点也不难。根据后句语境可知，此处表示“不必”，用needn’t。故填needn’t。 18．If it ________ (rain) tomorrow, we would cancel the sports meeting. 【答案】rained/should rain/were to rain 【解析】考查与将来事实相反的虚拟语气。句意：如果明天下雨，我们就取消运动会。与将来事实相反的if虚拟从句，可使用一般过去时/should do/were to do三种形式。故填rained/should rain/were to rain。 19．He should ________ (finish) his work yesterday, but he was too lazy. 【答案】have finished 【解析】考查情态动词虚拟结构。句意：他昨天本应该完成工作，但他太懒了。should have done表示“本应该做却未做”，符合遗憾的语境。故填have finished。 20．May you ________ (have) a happy and safe holiday! 【答案】have 【解析】考查情态动词用法。句意：祝你假期开心平安！may表示祝愿时，后接动词原形。故填have。 三、句型转换 1．You needn’t hand in your homework right now.（同义句转换） →You ________ ________ ________ hand in your homework right now. 【答案】don’t have to 【解析】考查情态动词同义替换。needn’t表示“不必”，等同于don’t have to，时态保持一般现在时，主语为you，助动词用don’t。故填don’t have to。 2．I didn’t take your advice, so I failed.（改为虚拟语气句子） →If I ________ ________ your advice, I ________ ________ ________. 【答案】had taken; wouldn’t have failed 【解析】考查与过去事实相反的虚拟语气。原句为过去的真实事实：我没听建议，所以失败了。改写为虚拟句，从句用had done，主句用wouldn’t have done，表示“如果我听了建议，我就不会失败了”。故填had taken; wouldn’t have failed。 3．It’s time for us to make a decision.（改为虚拟语气句型） →It is high time that we ________ a decision. 【答案】made 【解析】考查It is high time that虚拟句式，从句谓语用一般过去时。故填made。 4．He insisted on solving the problem by himself.（改为宾语从句虚拟句） →He insisted that he ________ ________ the problem by himself. 【答案】(should) solve 【解析】考查insist虚拟用法。insist表示“坚持要求”时，宾语从句用(should)+动词原形。故填(should) solve。 四、完成句子 1．你本可以早点告诉我这件事的。You ________ ________ ________ me about it earlier. 【答案】could have told 【解析】考查虚拟语气。could have done表示“本可以做某事却没做”，贴合语境。故填could have told。 2．所有人都应该遵守学校的规章制度。Everyone ________ ________ the school rules and regulations. 【答案】should follow/obey 【解析】考查情态动词表建议、义务。should表示“应该”，follow/obey rules表示“遵守规则”。故填should follow/obey。 3．如果我是他，我就不会放弃我的梦想。If I ________ him, I ________ ________ up my dream. 【答案】were; wouldn’t give 【解析】考查与现在事实相反的虚拟语气。从句be动词用were，主句用wouldn’t+动词原形，give up为固定搭配“放弃”。故填were; wouldn’t give。 4．我们建议推迟这次运动会。We suggested that the sports meeting ________ ________ ________ off. 【答案】(should) be put 【解析】考查虚拟语气+被动语态。suggest后从句用(should) do，sports meeting与put off（推迟）为被动关系，故填(should) be put。 五、英汉互译 1．你不必为这次小失误自责。(needn’t) ____________________________________________________________________________________________ 【答案】You needn’t blame yourself for this small mistake. 【解析】考查情态动词needn’t用法。needn’t后接动词原形；blame oneself for sth.为固定搭配，意为“为某事自责”。句子为一般现在时，句式简洁通顺。 2． 如果当初你努力学习，你现在就会取得更好的成绩。（虚拟语气） ____________________________________________________________________________________________ 【答案】If you had studied hard before, you would get better grades now. 【解析】考查混合虚拟语气。从句为过去事实相反（had done），主句为现在事实相反（would do）； study hard努力学习，get better grades取得更好的成绩。 3． 我们本该珍惜和家人在一起的时光。(should have done) ____________________________________________________________________________________________ 【答案】We should have valued the time we spent with our family. 【解析】考查情态动词虚拟结构。should have done表本该做未做；value意为“珍惜”，定语从句we spent with our family修饰先行词the time。 六、短文语法填空 阅读下面材料，在空格处填入适当的内容（1个单词）或括号中单词的正确形式. Many people regret not cherishing time when they were young. They often imagine what life ___1___ (be) like if they ___2___ (make) better use of their youth. If they ___3___ (study) harder in high school, they might have entered their dream universities. If they ___4___ (not waste) time on meaningless things, they would have more achievements now.In fact, it is no use regretting the past. It is high time that we ___5___ (focus) on the present. We should remember that we ___6___ (must) seize every chance to improve ourselves, and we ___7___ (can) change our future with hard work. If we take action now, we ___8___ (have) a brighter future. Experts suggest that everyone ___9___ (keep) a positive attitude towards life and never give up easily. Nothing is impossible if we try our best, and we ___10___ (shall) never doubt our own potential. 【答案】 1．would be 2．had made 3．had studied 4．hadn’t wasted 5．focused 6．must 7．can 8．will have 9．(should) keep 10．shall 【导语】本文通过虚拟语气对比过去的遗憾和当下的行动，告诉我们要珍惜当下、努力拼搏。 1．would be 【解析】考查虚拟语气。根据语境可知是对过去的虚拟，主句用would+动词原形。故填would be。 2．had made 【解析】考查与过去事实相反的虚拟从句，从句用过去完成时。故填had made。 3．had studied 【解析】考查虚拟语气。由主句might have entered可知，从句为过去虚拟，用过去完成时。故填had studied。 4．hadn’t wasted 【解析】考查虚拟语气否定形式。与过去事实相反，从句用过去完成时否定式。故填hadn’t wasted。 5．focused 【解析】考查It is high time that虚拟句式，从句用一般过去时。故填focused。 6．must 【解析】考查情态动词。must表示“必须”，强调主观决心，贴合语境。故填must。 7．can 【解析】考查情态动词。can表示“能够”，表客观可能性。故填can。 8．will have 【解析】考查真实条件句。if引导真实条件句，主将从现，主句用一般将来时。故填will have。 9．(should) keep 【解析】考查suggest虚拟用法，从句用(should)+动词原形。故填(should) keep。 10．shall 【解析】考查情态动词。shall用于第一人称，表坚定的决心、承诺。故填shall。 1 / 5 学科网（北京）股份有限公司 学科网（北京）股份有限公司 $ 完成时间： 月 日 今日打卡：☐ 已完成 用时： min 自评勋章： 作业09 情态动词与虚拟语气专项培优 一、核心定义 情态动词是一类辅助动词，无人称和数的变化，后接动词原形，用于表达说话人的情绪、态度、语气，包括推测、能力、许可、义务、意愿、建议等含义。虚拟语气是一种特殊的动词语气，不用于陈述客观事实，专门用来表达假设、愿望、猜测、建议、遗憾、不可能发生或与事实相反的情况，常与情态动词搭配使用，是高中英语语法的核心重难点。 二、核心知识点精讲 （一）情态动词核心用法 情态动词主要包括can/could、may/might、must、shall/should、will/would、need、dare等，核心功能分类如下： 1. 能力：can表示现在的能力，could表示过去的能力；be able to可表示具体某次成功的能力，可用于各种时态。 2. 许可：can/may表示口语中的许可，could/might语气更委婉；mustn’t表示“禁止”，needn’t表示“不必”。 3.推测（高频考点）：must用于肯定句，表“一定、想必”；can’t用于否定句，表“不可能”；may/might/could表“可能、也许”，不确定性较强。 4.义务与建议：must表示主观必须、一定要；have to表示客观不得不；should/ought to表示“应该”，侧重建议、责任、情理；shall用于一、三人称疑问句表征求意见，二、三人称陈述句表命令、承诺、警告。 5.特殊用法：would表过去习惯性动作、委婉请求；need/dare作情态动词多用于否定句和疑问句，无人称变化，后接动词原形。 （二）虚拟语气核心用法 虚拟语气核心规则： 时态倒退，即现在事实→过去时，过去事实→过去完成时，将来事实→过去将来时。 1. if条件状语从句虚拟语气 与现在事实相反：从句用一般过去时，主句用would/could/might/should+动词原形； 与过去事实相反：从句用过去完成时，主句用would/could/might/should+have done； 与将来事实相反：从句用一般过去时/should do/were to do，主句用would/could/might/should+动词原形。 2. 名词性从句虚拟语气 表示建议、命令、要求的动词（suggest、advise、order、demand、require等）后的宾语从句， 从句用(should)+动词原形，should可省略； It is important/necessary/strange that...从句、wish宾语从句、would rather从句均需使用虚拟语气。 3. 特殊句式虚拟语气 It is (high) time that...从句用一般过去时；as if/though引导方式状语从句，根据事实与否使用对应虚拟时态。 一、单项选择 1．You ________ be quiet in the library. Everyone is reading carefully. A. can B. must C. may D. could 2．The light is on in his room, so he ________ be at home. He can’t be out. A. must B. may C. might D. could 3．You ________ worry about me. I’m old enough to take good care of myself. A. mustn’t B. can’t C. needn’t D. shouldn’t 4．If I ________ you, I ________ accept the invitation at once. A. am; will B. were; would C. was; will D. is; would 5．He suggested that we ________ a meeting to discuss the problem. A. held B. hold C. will hold D. are holding 6．I ________ late last night, but I watched a movie and stayed up till midnight. A. should have slept B. must have slept C. could sleep D. should sleep 7．It is high time that we ________ effective measures to solve the problem. A. take B. took C. will take D. have taken 8．You ________ cross the road when the traffic light is red. It’s dangerous. A. needn’t B. shouldn’t C. mustn’t D. wouldn’t 9．If you had told me the truth earlier, I ________ you yesterday. A. would help B. helped C. would have helped D. had helped 10．— ________ I borrow your dictionary? — Sure, here you are. A. Must B. Should C. May D. Need 二、单句语法填空 11．It is strange that he ________ (refuse) such a good opportunity. 12．The doctor ordered that the patient ________ (stay) in bed for a week. 13．If I ________ (have) more time yesterday, I would have finished my homework. 14．You ________ (not) park here! It’s a no-parking area. 15．She looks unhappy. She ________ (have) quarreled with her friend just now. 16．I would rather you ________ (go) with me tomorrow. 17．We ________ (not) worry about the exam. It is not difficult at all. 18．If it ________ (rain) tomorrow, we would cancel the sports meeting. 19．He should ________ (finish) his work yesterday, but he was too lazy. 20．May you ________ (have) a happy and safe holiday! 三、句型转换 1．You needn’t hand in your homework right now.（同义句转换） →You ________ ________ ________ hand in your homework right now. 2．I didn’t take your advice, so I failed.（改为虚拟语气句子） →If I ________ ________ your advice, I ________ ________ ________. 3．It’s time for us to make a decision.（改为虚拟语气句型） →It is high time that we ________ a decision. 4．He insisted on solving the problem by himself.（改为宾语从句虚拟句） →He insisted that he ________ ________ the problem by himself. 四、完成句子 1．你本可以早点告诉我这件事的。You ________ ________ ________ me about it earlier. 2．所有人都应该遵守学校的规章制度。Everyone ________ ________ the school rules and regulations. 4．我们建议推迟这次运动会。We suggested that the sports meeting ________ ________ ________ off. 五、英汉互译 1．你不必为这次小失误自责。(needn’t) ____________________________________________________________________________________________ 2． 如果当初你努力学习，你现在就会取得更好的成绩。（虚拟语气） 3． 我们本该珍惜和家人在一起的时光。(should have done) ____________________________________________________________________________________________ 六、短文语法填空 阅读下面材料，在空格处填入适当的内容（1个单词）或括号中单词的正确形式. Many people regret not cherishing time when they were young. They often imagine what life ___1___ (be) like if they ___2___ (make) better use of their youth. If they ___3___ (study) harder in high school, they might have entered their dream universities. If they ___4___ (not waste) time on meaningless things, they would have more achievements now.In fact, it is no use regretting the past. It is high time that we ___5___ (focus) on the present. We should remember that we ___6___ (must) seize every chance to improve ourselves, and we ___7___ (can) change our future with hard work. If we take action now, we ___8___ (have) a brighter future. Experts suggest that everyone ___9___ (keep) a positive attitude towards life and never give up easily. Nothing is impossible if we try our best, and we ___10___ (shall) never doubt our own potential. 1 / 5 学科网（北京）股份有限公司 学科网（北京）股份有限公司 $