重难点06 情态动词-2025年中考英语【热点·重点·难点】专练（上海专用）

重难点06 情态动词 1.贴近生活场景 题目多设置在真实语境中（如请求、建议、推测等），要求学生根据情境选择恰当的情态动词。 例：—“Can I borrow your pen?” —“Sorry, you ______. I’m using it now.” (答案：can’t) 2.综合考查多个情态动词 选项中常出现多个近义情态动词（如 must/can/may/should），需结合语境和语气差异判断。 例：—“The light is on. He ______ be at home.” —“No, he ______ be. He went to Beijing yesterday.” (答案：may/might；can’t) 3.结合时态和语态 考查情态动词的过去式（could/would/might）或被动语态结构（must be done/should have been done）。 4.语境推理题增加 通过对话或短文推断说话者的态度、意图，如推测可能性（must/can’t/might）或建议（should/had better）。 5.固定搭配高频出现 如：had better (not) do, would rather do, used to do 等。 【题型解读】 1. 充分利用句子语境 综观历年中考英语情态动词的考查情况，有相当一部分考题从本质上看都是在考查情态动词在具体语境中的运用，即只要考生能弄清各个被考查情态动词的意思，就可作出正确选择。 2. 根据时间确定时态 即要分清情态动词表推测时涉及的是现在情况还是过去情况。原则上说，若对现在情况进行推测，情态动词后接动词原形或进行式。 3. 注意分清适用句型 即要分清所考查的情态动词是用于肯定句型，还是用于疑问句型或否定句型，同时还要注意情态动词在某些特殊情况下所使用的特殊句型。 【高分技巧】 1.基础用法与语义区别 情态动词 核心语义 典型场景 can/could 能力、请求许可、可能性（否定表“不可能”） “Can you swim?” “Could I use your phone?” must 必须（主观）、肯定推测（+be/do） “You must finish homework.” “She must be tired.” may/might 许可、可能性（较弱） “May I come in?” “It might rain.” should/ought to 建议、责任、合理推测 “You should see a doctor.” “He ought to arrive by now.” need 需要（多用于否定/疑问） “Need I stay?” “You needn’t worry.” 2.表推测的层级 肯定推测：must > will > should > may > might/could 否定推测：can’t/couldn’t（不可能） > may not/might not（可能不） 例：The phone is ringing. It must be Tom. (高把握) / It can’t be Jane; she’s abroad. (否定) 3.过去式与完成式 could/would/might + have done：表对过去的推测或虚拟语气。 例：You should have told me earlier. (本应该做却未做) must have done：肯定过去的推测。 例：The ground is wet. It must have rained last night. 4.否定与疑问形式 mustn’t（禁止） vs. needn’t/don’t have to（不必） Can/Could I…?（请求） vs. May/Might I…?（更正式） 5.易混淆词辨析 can vs. be able to：后者强调通过努力实现的能力（过去时：was able to = succeeded in doing）。 must vs. have to：must表主观义务，have to表客观要求。 would vs. used to：两者均表过去习惯，但used to强调“过去常做，现在不了”。 （建议用时：40分钟） 1．（2024·上海青浦·二模）Listen! Her voice is shaking while speaking. She ________ be very nervous. A．must B．need C．should D．can 2．（2025·上海静安·一模）Nowadays, people ________ easily turn to ChatGPT when facing something they don’t know. A．can B．should C．need D．must 3．（2025·上海长宁·一模）________ you open the door for me? I am carrying too many things. A．Must B．May C．Need D．Could 4．（2025·上海浦东新·一模）With the help of AI, people _______ spend much time searching for the information on their own. A．needn’t B．shouldn’t C． mustn’t D．can’t 5．（24-25九年级上·上海闵行·期中）To our surprise, the robot ________ communicate with us in our local language. A．can B．must C．should D．may 6．（24-25九年级上·上海崇明·期中）________ I borrow your dictionary? I forgot to bring mine to school today. A．Must B．Need C．May D．Should 7．（2024·上海普陀·二模）As a beginner, she __________ need your help with some business matters. A．must B．should C．can D．may 8．（2024·上海徐汇·一模）Your poster ________ be bright-colored to keep the viewers’ attention. A．should B．need C．can D．may 9．（2024·上海松江·二模）It is said that the robots ________ take care of the old at home in the near future. A．can B．should C．must D．need 10．（2025·上海普陀·一模）Mom, ________ you buy me a new watch? The old one just stopped working. A．can B．need C．must D．may 11．（2025·上海闵行·一模）The restaurant is always crowded with people. The food there ________ be very delicious. A．must B．should C．need D．would 12．（2025·上海浦东新·一模）According to health experts, old people had better _______ every day to stay healthy. A．exercise B．to exercise C．exercising D．exercised 13．（24-25九年级上·上海浦东新·阶段练习）We ________ talk or speak loudly in public places, such as hospitals, libraries or cinemas. A．don’t B．may not C．needn’t D．mustn’t 14．（24-25九年级上·上海奉贤·期中）In dry weather, people had better ________ more attention to the fire safety. A．pay B．paying C．to pay D．not pay 15．（2024·上海徐汇·二模）There are plenty of eggs in the fridge now. You buy any. A．can’t B．mustn’t C．shouldn’t D．needn’t 16．（2024·上海嘉定·二模）—Do you think Emma is still studying at the library? It’s almost midnight. —She ________. The library closes at 9:30 p.m., and everyone has to leave by then. A．should be B．must be C．needn’t be D．can’t be 17．（24-25九年级上·上海杨浦·期中）Dogs ________ provide company and reduce feelings of loneliness. A．can B．should C．must D．need 18．（24-25九年级上·上海黄浦·期中）—Can you go to the park with me this weekend? —Sorry, I can’t. I ________ visit my uncle. A．should B．can C．have to D．would 19．（24-25九年级上·上海浦东新·期中）—Excuse me, ________ I feed the pet dog? —Sorry, you can’t. A．would B．may C．must D．should 20．（24-25九年级上·上海浦东新·期中）Drivers ________ obey the traffic rules for the safety of themselves and other road users. A．can B．ought C．may D．must 21．（24-25九年级上·上海浦东新·期中）To keep healthy, we’d better ________ too much high-calorie food. A．not to eat B．not eat C．not eating D．not have eaten 22．（24-25九年级上·上海浦东新·期中）Betty ________ be practising the piano now, because she’ll give a performance at tomorrow’s party. A．must B．should C．can D．need 23．（24-25九年级上·上海黄浦·阶段练习）Christy has had three jobs since college, and she still ________ decide what she wants to do. A．needn’t B．can’t C．mustn’t D．shouldn’t 24．（2024·上海奉贤·一模）—Jacky, I’m afraid it’s impossible for us to finish the project this afternoon. —Well, we ________ complete it today. It’s fine if we give a to Professor Wu tomorrow. A．shouldn’t B．mustn’t C．can’t D．needn’t 25．（2024·上海·模拟预测）Because of these wonderful inventions, we ________ have better lives. A．can B．must C．need D．should 26．（2025·上海嘉定·一模）The guide informed the visitors they ________ leave their bags at the reception if they preferred. A．might B．need C．must D．should 27．（2025·上海徐汇·一模）Nobody ________ solve that complex case without gathering sufficient evidence. A．may B．can C．must D．need 28．（2025·上海虹口·一模）After some training, most dogs ________ follow simple commands like sit, stay or go. A．can B．should C．must D．need 29．（2025·上海长宁·一模）You had better ________ up too late tonight because you will have an exam tomorrow. A．not stay B．not staying C．not to stay D．not stayed 30．（2025·上海杨浦·一模）—Did you hear what he just said? —He ________ be joking—there’s no way that’s true! A．can B．need C．must D．should 31．（2025·上海崇明·一模）—Dad, I’ll take the dog for a walk this afternoon. You ________ do it yourself. —Thanks, Alisa. You’re a real help. A．can’t B．needn’t C．mustn’t D．shouldn’t 32．（2025·上海黄浦·一模）Visitors ________ sign in at the front desk for safety reasons before entering the building. A．must B．might C．can D．may 33．（24-25九年级上·上海浦东新·期末）The lady over there ________ be Samantha’s mother because her mother is having a meeting in Nanjing this week. A．mustn’t B．can’t C．shouldn’t D．needn’t 34．（2025·上海徐汇·模拟预测）According to the traffic rules, drivers ________ wear seat belts at all times. A．can B．may C．must D．should 35．（24-25九年级下·上海·阶段练习）—Be quiet! Mr. Black is coming. —Don’t worry. It ______ be him. Mr. Black’s steps are much heavier. A．shouldn’t B．can’t C．needn’t D．mustn’t 36．（24-25九年级下·上海·阶段练习）The guitar ______ belong to Lisa. Only she played the guitar here yesterday. A．could B．must C．may D．should 37．（24-25九年级下·上海·阶段练习）AI technology has developed rapidly in recent years. It ______ bring great changes to our lives, but it also faces some challenges. A．might B．must C．can D．need 38．（2025·上海宝山·模拟预测）Drivers ________ obey traffic rules for the safety of themselves and other road users. A．ought B．can C．must D．may 39．（24-25九年级上·上海宝山·期中）Earthquakes can be very dangerous. We _________ learn to protect ourselves. A．need B．can C．must D．may 40．（2025·上海青浦·一模）Drivers ________ obey traffic rules to ensure the safety of themselves and others. A．can B．will C．might D．should 1 / 2 学科网（北京）股份有限公司 $$ 重难点06 情态动词 1.贴近生活场景 题目多设置在真实语境中（如请求、建议、推测等），要求学生根据情境选择恰当的情态动词。 例：—“Can I borrow your pen?” —“Sorry, you ______. I’m using it now.” (答案：can’t) 2.综合考查多个情态动词 选项中常出现多个近义情态动词（如 must/can/may/should），需结合语境和语气差异判断。 例：—“The light is on. He ______ be at home.” —“No, he ______ be. He went to Beijing yesterday.” (答案：may/might；can’t) 3.结合时态和语态 考查情态动词的过去式（could/would/might）或被动语态结构（must be done/should have been done）。 4.语境推理题增加 通过对话或短文推断说话者的态度、意图，如推测可能性（must/can’t/might）或建议（should/had better）。 5.固定搭配高频出现 如：had better (not) do, would rather do, used to do 等。 【题型解读】 1. 充分利用句子语境 综观历年中考英语情态动词的考查情况，有相当一部分考题从本质上看都是在考查情态动词在具体语境中的运用，即只要考生能弄清各个被考查情态动词的意思，就可作出正确选择。 2. 根据时间确定时态 即要分清情态动词表推测时涉及的是现在情况还是过去情况。原则上说，若对现在情况进行推测，情态动词后接动词原形或进行式。 3. 注意分清适用句型 即要分清所考查的情态动词是用于肯定句型，还是用于疑问句型或否定句型，同时还要注意情态动词在某些特殊情况下所使用的特殊句型。 【高分技巧】 1.基础用法与语义区别 情态动词 核心语义 典型场景 can/could 能力、请求许可、可能性（否定表“不可能”） “Can you swim?” “Could I use your phone?” must 必须（主观）、肯定推测（+be/do） “You must finish homework.” “She must be tired.” may/might 许可、可能性（较弱） “May I come in?” “It might rain.” should/ought to 建议、责任、合理推测 “You should see a doctor.” “He ought to arrive by now.” need 需要（多用于否定/疑问） “Need I stay?” “You needn’t worry.” 2.表推测的层级 肯定推测：must > will > should > may > might/could 否定推测：can’t/couldn’t（不可能） > may not/might not（可能不） 例：The phone is ringing. It must be Tom. (高把握) / It can’t be Jane; she’s abroad. (否定) 3.过去式与完成式 could/would/might + have done：表对过去的推测或虚拟语气。 例：You should have told me earlier. (本应该做却未做) must have done：肯定过去的推测。 例：The ground is wet. It must have rained last night. 4.否定与疑问形式 mustn’t（禁止） vs. needn’t/don’t have to（不必） Can/Could I…?（请求） vs. May/Might I…?（更正式） 5.易混淆词辨析 can vs. be able to：后者强调通过努力实现的能力（过去时：was able to = succeeded in doing）。 must vs. have to：must表主观义务，have to表客观要求。 would vs. used to：两者均表过去习惯，但used to强调“过去常做，现在不了”。 （建议用时：40分钟） 1．（2024·上海青浦·二模）Listen! Her voice is shaking while speaking. She ________ be very nervous. A．must B．need C．should D．can 【答案】A 【详解】句意：听！她说话时声音在颤抖。她一定很紧张。 考查情态动词辨析。must一定；need需要；should应该；can可以。由“Her voice is shaking while speaking.”可知她说话时声音颤抖，可推测一定是紧张的。选项A符合。故选A。 2．（2025·上海静安·一模）Nowadays, people ________ easily turn to ChatGPT when facing something they don’t know. A．can B．should C．need D．must 【答案】A 【详解】句意：如今，当人们遇到不懂的问题时，可以轻松地求助于ChatGPT。 考查情态动词。can可以，能够；should应该；need需要；must必须，一定。根据“when facing something they don’t know.”可知，在面对不懂的问题时我们可以求助ChatGPT。can表示“可以，能够”。故选A。 3．（2025·上海长宁·一模）________ you open the door for me? I am carrying too many things. A．Must B．May C．Need D．Could 【答案】D 【详解】句意：你能帮我把门打开吗？我拿了太多东西。 考查情态动词。Must必须；May可以；Need需要；Could能够。表示请求时一般用“Could you …?” Could意为 “能够”，表示婉转的请求。故选D。 4．（2025·上海浦东新·一模）With the help of AI, people _______ spend much time searching for the information on their own. A．needn’t B．shouldn’t C． mustn’t D．can’t 【答案】A 【详解】句意：在人工智能的帮助下，人们不必花太多时间自己搜索信息。 考查情态动词。needn’t不必；shouldn’t不应该；mustn’t一定不能；can’t不能。根据“With the help of AI, people … spend much time searching for the information on their own.”可知，此处是说“在人工智能的帮助下，人们不必花太多时间自己搜索信息”，needn’t“不必”符合句意。故选A。 5．（24-25九年级上·上海闵行·期中）To our surprise, the robot ________ communicate with us in our local language. A．can B．must C．should D．may 【答案】A 【详解】句意：令我们惊讶的是，机器人可以用我们当地的语言与我们交流。 考查情态动词。can可以，能够；must必须；should应该；may可能。根据“the robot ... communicate with us in our local language.”可知，此处指的是机器人能用当地的语言和人们交流。故选A。 6．（24-25九年级上·上海崇明·期中）________ I borrow your dictionary? I forgot to bring mine to school today. A．Must B．Need C．May D．Should 【答案】C 【详解】句意：我可以借用你的字典吗？我今天忘了带我的来学校了。 考查情态动词辨析。must必须；need需要；may可以；should应该。根据“I borrow your dictionary? I forgot to bring mine to school today.”可知，此处表示请求，应用情态动词may，故选C。 7．（2024·上海普陀·二模）As a beginner, she __________ need your help with some business matters. A．must B．should C．can D．may 【答案】D 【详解】句意：作为一个初学者，她可能需要你在一些业务上的帮助。 考查情态动词。must必须；should应该；can可以；may可能。根据“need your help with some business matters.”可知此处指猜测，可能需要帮助。故选D。 8．（2024·上海徐汇·一模）Your poster ________ be bright-colored to keep the viewers’ attention. A．should B．need C．can D．may 【答案】A 【详解】句意：你的海报应该是明亮的颜色，以保持观众的注意力。 考查情态动词。should应该；need需要；can能够；may也许。根据“be bright-colored to keep the viewers’ attention”可知，此处表示为了保持观众的注意力，海报应该是明亮的颜色。故选A。 9．（2024·上海松江·二模）It is said that the robots ________ take care of the old at home in the near future. A．can B．should C．must D．need 【答案】A 【详解】句意：据说在不久的将来，机器人可以照顾家里的老人。 考查情态动词。can能够；should应该；must必须；need需要。根据“the robots ... take care of the old at home”可知，是指机器人能够照顾老人，用can表示能力。故选A。 10．（2025·上海普陀·一模）Mom, ________ you buy me a new watch? The old one just stopped working. A．can B．need C．must D．may 【答案】A 【详解】句意：妈妈，你能给我买块新手表吗？那辆旧的刚刚停止工作。 考查情态动词。can能，可以；need需要；must必须；may可能。根据“...you buy me a new watch? The old one just stopped working.”可知，此处表示请求许可。故选A。 11．（2025·上海闵行·一模）The restaurant is always crowded with people. The food there ________ be very delicious. A．must B．should C．need D．would 【答案】A 【详解】句意：这家餐馆总是挤满了人。那里的食物一定很好吃。 考查情态动词。must一定；should应该；need需要；would将会。根据“The restaurant is always crowded with people.”可知，挤满了人，说明餐馆的食物一定很美味，应该使用must be“一定是”，故选A。 12．（2025·上海浦东新·一模）According to health experts, old people had better _______ every day to stay healthy. A．exercise B．to exercise C．exercising D．exercised 【答案】A 【详解】句意：根据健康专家，为了保持健康，老人最好每天锻炼。 考查固定短语。exercise锻炼，动词原形；to exercise锻炼，动词不定式形式；exercising锻炼，现在分词或动名词形式；exercised锻炼，过去式或过去分词形式。根据固定短语had better do sth.“最好做某事”可知，此处应填动词原形。故选A。 13．（24-25九年级上·上海浦东新·阶段练习）We ________ talk or speak loudly in public places, such as hospitals, libraries or cinemas. A．don’t B．may not C．needn’t D．mustn’t 【答案】D 【详解】句意：我们不能在医院、图书馆或电影院等公共场所说话或大声说话。 考查情态动词。don’t不要；may not可能不；needn’t不必；mustn’t不能。根据“talk or speak loudly in public places, such as hospitals, libraries or cinemas.”可知不能在公共场所说话或大声说话。故选D。 14．（24-25九年级上·上海奉贤·期中）In dry weather, people had better ________ more attention to the fire safety. A．pay B．paying C．to pay D．not pay 【答案】A 【详解】句意：在干燥的天气里，人们最好多注意火灾安全。 考查had better的用法。在英语中，had better (not) do sth表示“最好（不要）做某事”，固定短语。结合“In dry weather”及常识可知，天气干燥时要注意火灾安全，故选A。 15．（2024·上海徐汇·二模）There are plenty of eggs in the fridge now. You buy any. A．can’t B．mustn’t C．shouldn’t D．needn’t 【答案】D 【详解】句意：冰箱里现在有很多鸡蛋。你不必买任何东西。 考查情态动词。can’t不能；mustn’t禁止；shouldn’t不应该；needn’t不必，不需要。根据前一句“There are plenty of eggs in the fridge now.”可知，冰箱还有，所以不需要买。故选D。 16．（2024·上海嘉定·二模）—Do you think Emma is still studying at the library? It’s almost midnight. —She ________. The library closes at 9:30 p.m., and everyone has to leave by then. A．should be B．must be C．needn’t be D．can’t be 【答案】D 【详解】句意：——你认为艾玛还在图书馆学习吗？快半夜了。——不可能。图书馆晚上九点半关门，所有人都得在那之前离开。 考查词义辨析。should be应该；must be一定；needn’t be不需要；can’t be不可能。根据“The library closes at 9:30 p.m., and everyone has to leave by then.”可知艾玛不可能在图书馆。故选D。 17．（24-25九年级上·上海杨浦·期中）Dogs ________ provide company and reduce feelings of loneliness. A．can B．should C．must D．need 【答案】A 【详解】句意：狗可以提供陪伴，减少孤独感。 考查情态动词辨析。can能；should应该；must必须；need需要。根据“Dogs...provide company and reduce feelings of loneliness.”可知，狗狗能够提供陪伴，减少孤独感。故选A。 18．（24-25九年级上·上海黄浦·期中）—Can you go to the park with me this weekend? —Sorry, I can’t. I ________ visit my uncle. A．should B．can C．have to D．would 【答案】C 【详解】句意：——这个周末你能和我一起去公园吗？——抱歉，我不能。我得去看我叔叔。 考查情态动词的用法。should应该；can可以，能够；have to不得不；would将会。根据“Sorry, I can’t. I ... visit my uncle.”可知，这个周末我不能去公园，我得去看望叔叔。故选C。 19．（24-25九年级上·上海浦东新·期中）—Excuse me, ________ I feed the pet dog? —Sorry, you can’t. A．would B．may C．must D．should 【答案】B 【详解】句意：——打扰一下，我可以喂这条宠物狗吗？——抱歉，不行。 考查情态动词辨析。would愿意；may可以；must必须；should应该。根据“Sorry, you can’t.”可知，上文应是表示请求。故选B。 20．（24-25九年级上·上海浦东新·期中）Drivers ________ obey the traffic rules for the safety of themselves and other road users. A．can B．ought C．may D．must 【答案】D 【详解】句意：为了自己和其他道路使用者的安全，司机必须遵守交通规则。 考查情态动词。can能；ought应该；may可能；must必须。根据“Drivers…obey the traffic rules”可知，遵守交通规则是必须的。故选D。 21．（24-25九年级上·上海浦东新·期中）To keep healthy, we’d better ________ too much high-calorie food. A．not to eat B．not eat C．not eating D．not have eaten 【答案】B 【详解】句意：为了保持健康，我们最好不要吃太多高热量的食物。 考查had better的用法。根据“we’d better”可知，考查had better not do sth“最好不做某事”。故选B。 22．（24-25九年级上·上海浦东新·期中）Betty ________ be practising the piano now, because she’ll give a performance at tomorrow’s party. A．must B．should C．can D．need 【答案】A 【详解】句意：贝蒂现在一定在练习钢琴，因为她将在明天的晚会上表演。 考查情态动词。must一定；should应该；can能；need需要。根据“because she’ll give a performance at tomorrow’s party”可知表示对现在情况的肯定推测，用must，故选A。 23．（24-25九年级上·上海黄浦·阶段练习）Christy has had three jobs since college, and she still ________ decide what she wants to do. A．needn’t B．can’t C．mustn’t D．shouldn’t 【答案】B 【详解】句意：克里斯蒂自大学以来已经做了三份工作，但她仍然无法决定自己想做什么。 考查情态动词。needn’t不必；can’t不能；mustn’t禁止；shouldn’t不应该。根据“she still...decide what she wants to do.”可知她仍然不能决定自己想做什么。故选B。 24．（2024·上海奉贤·一模）—Jacky, I’m afraid it’s impossible for us to finish the project this afternoon. —Well, we ________ complete it today. It’s fine if we give a to Professor Wu tomorrow. A．shouldn’t B．mustn’t C．can’t D．needn’t 【答案】D 【详解】句意：——杰克，恐怕今天下午我们不可能完成这个项目了。——嗯，我们不必今天完成，明天交给吴教授就可以了。 考查情态动词辨析。shouldn’t不应该；mustn’t禁止；can’t不可能；needn’t不必。根据“It’s fine if we give a to Professor Wu tomorrow.”可知，今天不必完成。故选D。 25．（2024·上海·模拟预测）Because of these wonderful inventions, we ________ have better lives. A．can B．must C．need D．should 【答案】A 【详解】句意：由于这些奇妙的发明，我们可以有更好的生活。 考查情态动词辨析。can能够；must必须；need需要；should应该。根据“Because of these wonderful inventions,”可知，是指由于这些发明，我们才能有更好的生活，此处表示一种可能性，用can。故选A。 26．（2025·上海嘉定·一模）The guide informed the visitors they ________ leave their bags at the reception if they preferred. A．might B．need C．must D．should 【答案】A 【详解】句意：导游告知游客，如果他们愿意，可以将包放在接待处。 考查情态动词辨析。might可以；need需要；must必须；should应该。由“if they preferred”可知，游客可以留包但不是强制的，用might符合语境。故选A。 27．（2025·上海徐汇·一模）Nobody ________ solve that complex case without gathering sufficient evidence. A．may B．can C．must D．need 【答案】B 【详解】句意：没有充分的证据，没有人能侦破那个复杂的案件。 考查情态动词。may可能；can可以，能；must必须；need需要。根据“without gathering sufficient evidence”结合语境可知，此处应指没有充分的证据，没有人能侦破案件。故选B。 28．（2025·上海虹口·一模）After some training, most dogs ________ follow simple commands like sit, stay or go. A．can B．should C．must D．need 【答案】A 【详解】句意：经过一些训练，大多数狗都能遵循简单的命令，如坐下、停留或离开。 考查情态动词。can能；should应该；must必须；need需要。根据“follow simple commands like sit, stay or go”可知训练之后，狗能遵循简单的命令。故选A。 29．（2025·上海长宁·一模）You had better ________ up too late tonight because you will have an exam tomorrow. A．not stay B．not staying C．not to stay D．not stayed 【答案】A 【详解】句意：你最好今晚不要熬夜太晚，因为明天你要考试。 考查had better的用法。had better是情态动词，后跟动词原形，且否定句是在better后加not，即had better not do sth“最好不要做某事”。故选A。 30．（2025·上海杨浦·一模）—Did you hear what he just said? —He ________ be joking—there’s no way that’s true! A．can B．need C．must D．should 【答案】C 【详解】句意：——你听到他刚才说的话了吗？——他一定是在开玩笑——这不可能是真的！ 考查情态动词。can能；need需要；must一定；should应该。根据“be joking—there’s no way that’s true”可知不可能是真的，所以是认为他一定是在开玩笑。故选C。 31．（2025·上海崇明·一模）—Dad, I’ll take the dog for a walk this afternoon. You ________ do it yourself. —Thanks, Alisa. You’re a real help. A．can’t B．needn’t C．mustn’t D．shouldn’t 【答案】B 【详解】句意：——爸爸，今天下午我要带狗去散步。你不必自己做。——谢谢，艾丽莎。你真是帮了大忙。 考查情态动词。can’t不能；needn’t不必；mustn’t禁止；shouldn’t不应该。根据“I’ll take the dog for a walk this afternoon. You…do it yourself.”可知，Alisa要带狗去散步，所以爸爸不必自己去。故选B。 32．（2025·上海黄浦·一模）Visitors ________ sign in at the front desk for safety reasons before entering the building. A．must B．might C．can D．may 【答案】A 【详解】句意：出于安全原因，访客在进入大楼前必须在前台签到。 考查情态动词的用法。must 必须；might 可能；can 能够，可以；may 可以，可能。must意为“必须”，强调出于规定、要求或必要性等，在这里是说因为安全方面的原因，访客有义务和必要在前台签到，这是一种强制要求；另外根据空后“for safety reasons”可知，此处也强调规定和必要性，所以用must最合适。故填A。 33．（24-25九年级上·上海浦东新·期末）The lady over there ________ be Samantha’s mother because her mother is having a meeting in Nanjing this week. A．mustn’t B．can’t C．shouldn’t D．needn’t 【答案】B 【详解】句意：那边那个女士不可能是Samantha的妈妈，因为她的妈妈这周正在南京开会。 考查情态动词表推测。mustn’t禁止；can’t不可能；shouldn’t不应该；needn’t不需要。根据“The lady over there...be Samantha’s mother because her mother is having a meeting in Nanjing this week.”可知，此句表达因为她的妈妈这周正在南京开会，所以不可能是她妈妈，can’t表否定推测。故选B。 34．（2025·上海徐汇·模拟预测）According to the traffic rules, drivers ________ wear seat belts at all times. A．can B．may C．must D．should 【答案】C 【详解】句意：根据交通规则，司机必须随时系好安全带。 考查情态动词。can能；may可能；must必须；need需要；should应该。根据常识以及语境可知，应该是必须系安全带。故选C。 35．（24-25九年级下·上海·阶段练习）—Be quiet! Mr. Black is coming. —Don’t worry. It ______ be him. Mr. Black’s steps are much heavier. A．shouldn’t B．can’t C．needn’t D．mustn’t 【答案】B 【详解】句意：——安静！布莱克先生来了。  ——别担心。不可能是他。布莱克先生的脚步要重得多。 考查情态动词。shouldn’t不应该；can’t不可能；needn’t不必；mustn’t禁止，不允许。根据下文“Mr. Black’s steps are much heavier.”可知，布莱克先生的脚步重些，据此判断来人不可能是他，应用“can’t”。故选B。 36．（24-25九年级下·上海·阶段练习）The guitar ______ belong to Lisa. Only she played the guitar here yesterday. A．could B．must C．may D．should 【答案】B 【详解】句意：这把吉他一定是丽莎的。只有她昨天在这里弹吉他。 考查情态动词辨析。could可以；must必须；may也许；should应该。根据“The guitar …belong to Lisa. Only she played the guitar here yesterday.”可知，只有丽莎昨天在这里弹了吉他，所以这个吉他一定属于她。故选B。 37．（24-25九年级下·上海·阶段练习）AI technology has developed rapidly in recent years. It ______ bring great changes to our lives, but it also faces some challenges. A．might B．must C．can D．need 【答案】C 【详解】句意：AI技术近年来发展迅速。它能给我们的生活带来巨大变化，但也面临一些挑战。 考查情态动词。might可能；must必须；can能够；need需要。根据“It ... bring great changes to our lives, but it also faces some challenges.”可知，是指AI技术能够给我们带来巨大变化，用can表示“能力”。故选C。 38．（2025·上海宝山·模拟预测）Drivers ________ obey traffic rules for the safety of themselves and other road users. A．ought B．can C．must D．may 【答案】C 【详解】句意：为了自身和其他道路使用者的安全，驾驶员必须遵守交通规则。 考查情态动词must表示必须。ought应该；can可以，能；must必须；may或许，可以。根据“Drivers...obey traffic rules ”可知，该句强调司机“必须”遵守交通规则以确保安全，需用表强制义务的情态动词。must表必须，符合“强制要求遵守规则”的语境。故选C。 39．（24-25九年级上·上海宝山·期中）Earthquakes can be very dangerous. We _________ learn to protect ourselves. A．need B．can C．must D．may 【答案】C 【详解】句意：地震可能非常危险。我们必须学会保护自己。 考查情态动词。need需要；can能够，可以；must必须，应该；may可能。根据“Earthquakes can be very dangerous. We…learn to protect ourselves.”可知，此处强调一种必要性、义务性，故应是我们必须要学会保护自己，故应用must。故选C。 40．（2025·上海青浦·一模）Drivers ________ obey traffic rules to ensure the safety of themselves and others. A．can B．will C．might D．should 【答案】D 【详解】句意：司机应该遵守交通规则，以确保自己和他人的安全。 考查情态动词。can能；will将要；might可能；should应该。根据“Drivers…obey traffic rules”可知，遵守交通规则是一种责任和义务，应用should来表示建议或责任。故选D。 1 / 2 学科网（北京）股份有限公司 $$