Unit 6 Section Ⅱ Using language-(配套课件)【精讲精练】2025-2026学年高中英语选择性必修第四册(外研版)

该高中英语课件聚焦Unit 6 Space and beyond的情态动词用法，系统讲解can/could、may/might等基础用法及“情态动词+have done”结构，结合核心词汇submit和so...that...句型，通过即时演练和真题例句搭建从基础到复杂结构的学习支架，帮助学生梳理语法逻辑。 其亮点在于融合高考真题实例（如2024全国甲卷）与分层训练，通过对比辨析（如must与have to的主客观区别）培养思维品质，分栏目设计（语法精讲-随堂演练）提升学习能力，助力学生精准运用语言知识，教师可高效开展系统性教学。

Section Ⅱ　Using language Unit 6　Space and beyond 栏目导航 Unit 6　Space and beyond 1 栏目导航 语法精讲•技能培养 01 核心知识•关键能力 02 随堂演练•巩固提升 03 课时作业•知能达标 04 栏目导航 Unit 6　Space and beyond 1 语法精讲•技能培养 栏目导航 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 can can 栏目导航 Unit 6　Space and beyond 1 Can Could can 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 may may 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 mustn't drive don't have to buy 栏目导航 Unit 6　Space and beyond 1 must be well preserved 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 ought to/should arrive in Beijing shall remain in their seats 栏目导航 Unit 6　Space and beyond 1 shall have a new dress ought to/should be more careful 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 won't allow me to stay out late would get up early Would you mind opening 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 needn't pay for/don't need to pay for Dare you go out alone Do you dare (to) go out alone 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 needn't have worried must have done the research on his own shouldn't have scolded him may/might have left it 栏目导航 Unit 6　Space and beyond 1 核心知识•关键能力 栏目导航 栏目导航 Unit 6　Space and beyond 1     栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 to submit submission 栏目导航 Unit 6　Space and beyond 1 submit your application to the school office 栏目导航 Unit 6　Space and beyond 1     栏目导航 Unit 6　Space and beyond 1 栏目导航 Unit 6　Space and beyond 1 so such So rapid is the development of science and technology that it has brought great changes to our life 栏目导航 Unit 6　Space and beyond 1 随堂演练•巩固提升 栏目导航 栏目导航 Unit 6　Space and beyond 1 could might/may should 栏目导航 Unit 6　Space and beyond 1 must Will/Would/Can/May/Could shall 栏目导航 Unit 6　Space and beyond 1 can/may need must can 栏目导航 Unit 6　Space and beyond 1 would turn to me for help shall carry a mobile phone 栏目导航 Unit 6　Space and beyond 1 should have studied hard can't find my purse may/might/could have left it in the supermarket cannot thank you too much 栏目导航 Unit 6　Space and beyond 1 课时作业•知能达标 栏目导航 栏目导航 Unit 6　Space and beyond 1 谢谢观看 栏目导航 Unit 6　Space and beyond 1 情态动词表示说话人的语气和情态，如需要、可能、必须、应该等。常见的情态动词有can，could，may，might，must，ought to，shall，should，will和would。另外，dare，need，have to和used to也具有情态动词的某些特性。情态动词有以下特征： 1．在形式上，情态动词没有实义动词的各种变化，部分情态动词有过去式，其他情态动词如must，ought to 等的过去式皆与一般式同形。 2．在意义上，大多数情态动词有多个意义，如can可以表达能力、可能、许可等。 3．在用法上，情态动词与助动词一样，其后须接动词原形，构成谓语动词。 一、can和could的用法 1．表示能力，意为“能、会”。 ◆Tom can play basketball now，but he couldn't when he was young. 现在汤姆会打篮球了，但小时候他不会。 was/were able to do sth表示过去有能力做并且成功做了某事，相当于“managed to do sth/succeeded in doing sth”。 ◆He was able to escape from the fire before the firefighters arrived. 在消防员到来之前他从火中逃了出来。 2．表示推测，意为“可能”，常用于否定句或疑问句中。 ◆—Can our teacher be in the reading room now? ——我们的老师现在可能在阅览室吗？ —No，she can't be in it.Because I saw her in the office just now. ——不，她不可能在(阅览室)。因为我刚刚在办公室看见她了。 3．表示请求和许可，意为“能、可以”。在疑问句中could可代替can，语气更委婉。 ◆—Can /Could you lend me a hand? ——你能帮我一下吗？ —Yes，I can. ——可以。 4．用于肯定的陈述句，表示理论上的可能性，意为“有时会、可能会”。 ◆It can be quite cold here at night. 这里夜间有时可能会很冷。 5．用于固定句式：“can not...too/enough”意为“再……也不过分、越……越好”。 ◆I can't thank you too much for all your help to my son while we were away from home. 我非常感谢您在我们不在家时帮助我的儿子。 [即时演练1]——选词填空 (1)(2024·全国甲卷) Animals ___ (can/will)express their needs using a lot of ways. (2)(2023·全国乙卷)Living in Iowa and trying to become a photographer specializing in landscape ___ (can/shall)be quite a challenge，mainly because the corn state lacks geographical variation. (3)_____(can/shall) I borrow this book? I like it very much. (4)_____(could/should) you tell me how he gets to school every day? (5)Peter ___(can/must) be really difficult at times even though he's a nice person in general. 二、may和might的用法 1．may 和might 在肯定句中表示允许，意为“可以”。在疑问句中用于征求许可，意为“可以……吗”。 ◆Might/May I have a word with you? It won't take long. 我可以和您说句话吗？不会耽误很长时间。 ◆You may keep the book for two weeks. 这本书你可以借两个星期。 2．表示推测，意为“可能、或许”，常用于肯定句和否定句中。 ◆If you forgot to turn it off when you went away，you might burn down the house. 如果你离开时忘记关掉它，你可能会把整个房子都烧毁了。 3．用于固定句式：“may as well＋动词原形”意为“最好、倒不如……”。 ◆Since it is raining hard，you may as well stay here. 既然雨下得这么大，你倒不如待在这儿。 [即时演练2]——选词填空 (1)You ___(can/may) feel all the training a waste of time，but I'm a hundred percent sure later you'll be grateful you did it. (2)(2023·新课标Ⅰ卷)Shanghai ___ (may/must) be the recognized home of the soup dumpling，but food historians will actually point you to the neighboring ancient canal town of Nanxing as xiao long bao's birthplace. 三、must和have to的用法 1．must表示义务、命令等，意为“必须”，更强调说话人的主观态度。其否定形式为mustn't，意为“不许、禁止”；对以 must开头的一般疑问句进行否定回答时，应用don't have to/needn't (不必，没必要)。 ◆You must finish your homework this afternoon. 今天下午你必须完成你的家庭作业。 ◆—Must I tell him in advance? ——我必须事先告诉他吗？ —No，you don't have to/needn't. ——不，没必要。 2．must表示肯定的推测，意为“一定”，只用于肯定句中。 ◆You must be Carol.You haven't changed a bit after all these years. 你一定是卡罗尔。这么多年你一点儿都没变。 3．must意为“非得、偏要”，表示与说话人的愿望相反或不耐烦。 ◆If you must go，at least wait until the storm is over. 如果你非要走，至少要等到暴风雨停了。 4．have to表示客观需要，意为“不得不、必须”，强调客观上的必要性。 ◆You have to be back before 10：00 because the train leaves at 10：15. 你必须在10点之前回来，因为火车10点15离开。 [即时演练3]——完成句子 (1)法律规定人们喝酒之后禁止开车。 The law states that people _____________ after drinking alcohol. (2)你没有必要买礼物，但你如果想买的话，也可以买。 You _________________ a gift，but you can if you want to. (3)(2024·全国甲卷)这个地区拥有独特而令人惊叹的自然美景，必须作为国家公园好好保护，以供全国人民欣赏。 This area，with its unique and breathtaking natural beauty，______________________ for all people of the nation to enjoy—as a national park. 四、shall与should/ought to的用法 1．shall的用法 (1)用于第一、第三人称疑问句中，表示说话人征求对方的意见或向对方请示。 ◆Shall I tell Brett to come over straight after school tomorrow? 要我告诉布雷特明天放学以后直接过来吗？ (2)用于第二、第三人称陈述句中，表示说话人给对方的命令、警告、允诺或威胁。 ◆You shall do as I tell you. 你要按照我说的做。 (3)用在条约、规定、法令等文件中表示义务或规定，一般用于第三人称且用于陈述句中，意为“必须、应该”。 ◆No person shall carry a mobile phone into the examination room during the College Entrance Examination. 在高考时任何人都不能将手机带进考场。 2．should/ought to的用法 (1)表示责任与义务，意为“应该，应当”；ought to语气更强。 ◆If you are looking for the best comedies on tour and brilliant live music，you should start here. 如果你正在寻找巡回演出中最好的喜剧和精彩的现场音乐，你应该从这里开始。 ◆I don't think you should/ought to give up the opportunity to go to university which you have been dreaming about. 我认为你不应该放弃你一直以来梦想的上大学的机会。 (2)表示说话人根据一定的情况作出推测，意为“应该、可能”。 ◆He should/ought to be here on time—he started early enough. 他应该可以按时到这里，他很早就出发了。 (3)should表示惊讶或意外，意为“竟然”。 ◆It's strange that he should have taken the books without the owner's permission. 简直是太奇怪了，他竟然未得到主人的允许就把这些书拿走了。 [即时演练4]——完成句子 (1)如果火车准点的话，她应该在7点钟到达北京。 If the train is on time，she _________________________________ by seven o'clock. (2)考生必须留在座位上，等所有的试卷收好后方可离去。 Candidates ___________________________ until all the papers have been collected. (3)你在生日时会得到一件新裙子。 You ______________________ for your birthday. (4)下次过马路时，你应该更小心些。 You _______________________________ when you cross the road next time. 五、will和would的用法 1．表示意愿、意图或决心，可用于各种人称。 will意为“要、愿”； would用于过去时中，意为“愿意”。 ◆I have told him again and again to stop shouting，but he will not listen. 我已再三告诉他不要大喊大叫，但是他就是不听。 ◆She asked if I would go to cinema with them tonight. 她问我今晚是否愿意同他们一起去看电影。 2．表示习惯或倾向等，意为“总是、总会”。will用于表示一般的习惯；would 用于描述过去的习惯或例行的活动，意为“总是、总会”。 ◆I still remember my happy childhood when my mother would take me to Disneyland at weekends. 我仍旧记得我快乐的童年，那时我妈妈总是在周末带我去迪士尼乐园。 3．表示请求或建议，多用于疑问句。would语气更委婉。 ◆Will/Would you please let me have a look at your new watch? 请问可以让我看看你的新表吗？ [即时演练5]——完成句子 (1)我的父母不会允许我在外面待到很晚。 My parents _______________________________． (2)他住在乡下时总是起得很早。 He __________________ when he lived in the country. (3)你介意为我打开窗户吗？ ______________________ the window for me? 六、used to的用法 used to表示“过去常常”，没有人称和数的变化，仅用于过去时中，表示过去的习惯或过去某一时期的状况，但现在已不再这样了。 ◆She doesn't get up early as she used to. 她不像以前起得那么早了。 would与used to的区别： would仅表示过去习惯性或重复性的动作，没有与现在对比的含义；used to 表示过去经常发生的动作或存在的状态，现在已不再这样了。 七、need和dare的用法 1．need作情态动词，表示必要性，常用于疑问句和否定句中，needn't表示“不必”。 作实义动词时，可用于肯定句、否定句和疑问句中，有人称、数和时态的变化，其后可接名词、代词、带to的不定式或现在分词作宾语。 ◆My room is a mess，but I needn't clean it before I go out tonight.I can do it in the morning. 虽然我的房间乱糟糟的，不过我没必要今天晚上出门之前打扫，我可以明天上午再打扫。 ◆Since you know it already，we don't need to keep it a secret. 既然你已经知道了，我们就没有必要保密了。 2．dare作情态动词，意为“敢、敢于”，没有人称、数和时态的变化，主要用于疑问句、否定句和条件句中，后接动词原形。作实义动词时，在肯定句中通常接带to的不定式；在疑问句和否定句中，dare之后的不定式可省略。 ◆Most people hate Harry but they don't dare to say so. 大多数人对哈利敢怒不敢言。 ◆How dare you talk to your parents like that? 你怎么敢那样同你父母讲话？ [即时演练6]——完成句子/一句多译 (1)这是免费服务，你不必为此付钱。 This is free service; you ________________________________ it. (2)你晚上敢一个人出去吗？ ①_____________________ at night? ②_____________________________ at night? 八、“情态动词＋have done”的用法 “情态动词＋have done”既可表示对过去情况的推测，又可表示某种情绪、态度。情态动词不同，该结构所表示的含义也不同。具体用法如下： must have done 一定做过某事(肯定句) can/could have done 过去可能做过……吗？(疑问句) 本来能够做但却未做(肯定句) 过去不可能做过……(否定句) may/might have done 过去可能做过……吗？(疑问句) 过去可能做过……(肯定句) 过去可能没有做过……(否定句) should have done 本来应该做但是实际上未做 shouldn't have done 本来不应该做但实际上做了 needn't have done 没必要做却做了 ◆He must have been a doctor，for he knows medicines so well. 他一定当过医生，因为他对药物非常了解。 ◆He can't have gone to Japan，for I saw him at the meeting just now. 他不可能去了日本，因为我刚刚在会上见到他了。 ◆We could have visited the museum but we spent too much time shopping. 我们本来可以参观那个博物馆，但我们花了太长时间购物。 ◆You might have read about the news in the newspaper. 你可能已经在报纸上看到这个消息了。 ◆Yesterday was the deadline，and he should have completed his work. 昨天是最后期限，他本该完成工作的。 ◆—Catherine，I have cleaned the room for you. ——凯瑟琳，我已经为你打扫过房间了。 —Thanks.You needn't have done it. ——谢谢，你本不必这样做的。 [即时演练7]——用“情态动词＋have done”完成句子 (1)I ____________________(本没有必要担忧) before I came to the new school，for my classmates here are very friendly to me. (2)Since nobody gave him any help，he _______________________ ___________(一定是独自完成了那项研究). (3)You __________________________(本不应该责骂他) for his poor performance.After all，he had done his best. (4)I can't find my purse.I ______________________(可能把它落在) in the supermarket yesterday，but I'm not sure. [核心词汇·练透] submit　v.提交(→submission n.提交；呈递；(向法官提出的)意见；屈服) submit...to...　把……提交给…… submit to　顺从/屈服于…… submit oneself to...　使自己顺从/屈服于…… [经典例句] Submit a three-minute video introducing yourself and saying why you would be an ideal space candidate. 提交一个三分钟的视频介绍你自己，并说明为什么你是一个理想的空间候选人。 [练通]——单句语法填空/完成句子 (1)Not all great writers are great spellers.If you want to be published，it's vital _________(submit) a perfect，professionally presented manuscript (原稿).(2024·新课标Ⅰ卷) (2)Would you mind letting me know how it's going? Also，could I remind you that the deadline for __________ (submit) is this Friday，June 14th? (2025·全国二卷) (3)如果你对这个职位感兴趣，请向学校办公室提交申请。他们会审核并尽快回复您。 If you're interested in the position，please _______________________ _____________________．They will review it and get back to you as soon as possible.(应用文写作之通知) [重点句型·通关] “so...that...”意为“如此……以至于……” 句中“so...that...”意为“如此……以至于……”，so为副词，修饰形容词great；that 为连词，引导结果状语从句。当so以及它们所修饰的部分置于句首时，其所在的句子要部分倒装。 (1)so＋that从句 (2)such＋that从句 [经典例句] So great was the distance from Earth that it would need to travel for almost six years to reach its destination. 它与地球的距离是如此之远，以至于它需要将近6年的时间才能到达目的地。 [练通]——单句语法填空/句式升级 (1)The work consumed me __ much that there was a sense of challenge that completely overtook me. (2)It was ____ an extraordinary and memorable experience that I would always keep it in my memory.(2024·新课标Ⅰ卷，书面表达) (3)The development of science and technology is so rapid that it has brought great changes to our life. →____________________________________________________________________________________.(倒装句) Ⅰ.用适当的情态动词填空 1．It was really annoying; I _____ not get access to the data bank you had recommended. 2．The traffic is heavy these days.I _________ arrive a bit late，so could you save me a place? 3．I ______ have handed in my homework yesterday，but unfortunately I forgot about it totally. 4．—Boss，we need to talk about it now! —I'm busy.If you ____ talk about it with me，please wait till I finish my work at hand. 5．________________________ you please send me a message when you see him? 6．According to the school rules，no child _____ be allowed out of school，unless accompanied by his or her own parents. 7．If you leave within 15 minutes，you _______ park your car at the roadside temporarily. 8．—I've prepared all kinds of food for the picnic. —Do you mean we ____ not bring anything with us? 9．Harry is feeling uncomfortable.He ____ have drunk too much at the party last night. 10．I will do whatever I ___ to help the poor family get through their tough time. Ⅱ.完成句子 1．上学期间每次她遇到麻烦，她都会向我求助。 Every time she was in trouble during school days，she _____________ ____________． 2．在高考时任何人都不能将手机带进考场。 No person __________________________ into the examination room during the College Entrance Examination. 3．我真的很后悔在该努力学习的时候浪费了太多时间。 I really regret wasting too much time when I _____________________． 4．我找不到我的钱包了；我可能昨天把它落在超市了，但我不确定。 I ____________________；I ________________________________ ________________yesterday，but I'm not sure. 5．对于你们为我们所做的一切，我们怎么感激你们都不过分。 We __________________________for what you've done for us. $