Unit1 Section2 Using language(课件PPT)-【精讲精练】2024-2025学年高中英语必修第二册（外研版2019）

Unit 1　Food for thought Section Ⅱ　Using language 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 目 录 语法精讲 技能培养 01 知识整合 核心突破 02 CONTENTS 知能达标训练 04 随堂演练 能力提升 03 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 语法精讲 技能培养 01 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 知识整合 核心突破 02 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 随堂演练 能力提升 03 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 点击进入Word 知能达标训练 04 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 谢谢观看 返回目录 Unit 1　Food for thought 英语·必修 第二册(配WY版) 1 情态动词(1) 知识点1　情态动词的基本特征 情态动词表示说话人对某一动作或状态的看法或主观设想，是复合谓语不可或缺的部分。 1．情态动词有一定的词义，但不能单独作谓语，需和实义动词或系动词一起作谓语。 2．情态动词一般没有人称和数的变化(be able to、have to除外)，个别情态动词有现在时和过去时的两种时态变化。 3．构成否定句时，not放在情态动词后面。 4．情态动词后接动词原形。 知识点2　情态动词的基本用法 1．be able to的用法 be able to表示“经过努力而成功地做成某事”，且有人称和时态的变化，不能与can连用。 ◆If we keep trying, we will be able to achieve our goals. 如果我们不断尝试，我们将能实现我们的目标。 ◆It took me a long time before I was able to fully appreciate what they had done for me. 我花了很长时间才完全理解他们为我做的事情。 be able to与can/could的区别 (1)be able to 有更多的时态的变化；can 只有一般现在时和一般过去时； (2)was/were able to 表示“过去成功做成了某事”，相当于succeeded in doing sth；could仅表示客观上有某种能力。 ◆(2022·新高考全国Ⅰ卷)Everyone can play a part in reducing waste. 每个人都可以在减少浪费的过程中发挥作用。 ◆He could swim when he was five years old. 他5岁时就会游泳。 ◆After years of hard work, he was able to win the prize. 经过多年的艰苦工作，他终于获了奖。 [即时演练1]——选词填空(be able to/could/can) (1)When I was young, I could climb any tree in the woods. (2) If you have a good sleep, you will be able to work out this problem. (3)In today's information age, the loss of data can cause serious problems for a company. 2．have to的用法 have to 表示“不得不，必须”，强调客观上的必要性，有人称和时态的变化。否定式为don't/doesn't/didn't have to。 ◆I work not because I have to, but because I want to. 我工作不是因为我必须工作，而是因为我想工作。 ◆You don't have to run fast or for long to see the benefit. 你没必要为了看到效果而跑太快或太久。 have to与must的区别 (1)have to 强调客观上的必要性；must强调说话者的主观意愿。 ◆We have to finish the work before lunch. 我们必须在午饭前完成这项工作。(强调客观情况迫使，是不得已而为之。) ◆We must finish the work before lunch. 我们必须在午饭前完成这项工作。(强调出于义务或责任完成工作，不要拖延。) (2)have to的否定式为not have to，表示不必；must的否定式为must not/mustn't，表示禁止。 ◆You mustn't tell Jerry what I've bought. 你千万别告诉杰里我买了什么。 (3)由must引起的一般疑问句，肯定回答用“Yes，...must.”，否定回答用“No，...needn't.”或“No，...don't have to.”。 ◆—Must I finish the work tomorrow? ——我明天必须完成这项工作吗？ —No, you needn't/don't have to. ——不，你不必。 [即时演练2]——选词填空(have to/must) (1) We don't have to hurry, for there's plenty of time. (2) I'd also like to know how much I have to pay for the course. (3) (2022·新高考全国Ⅰ卷) If you plan on working out in a gym，that person must belong to the same gym. 3．had better的用法 had better 表示“应该，最好”，没有人称和时态的变化。其否定式为had better not。 ◆Parents had better not give kids more money than what is necessary. 父母最好别给孩子们太多的钱， 够用就可以了。 ◆To make it easier to get in touch with us, you'd better keep this card at hand. 为了更容易联系到我们，你最好把这张卡片放在手边。 [即时演练3]——完成句子 (1)我们最好现在就走，否则就赶不上公共汽车了。 　We'd better leave now or we'll miss the bus. (2)雨下得很大，你最好不要现在回家。 It's raining cats and dogs.You had better not go home now. 4．dare的用法 dare作情态动词时，常用于疑问句、否定句以及条件句中，表示“敢于，敢做”，没有人称变化，但有过去式。 ◆He daren't speak English in public. 他不敢在公共场合说英语。 ◆How dare he take my bicycle without even asking! 他怎敢不问我一声就把我的自行车骑走了！ dare用作实义动词时的用法 (1)有人称、时态和数的变化； (2)在肯定句中，其后常接带to的不定式； (3)在否定句和疑问句中，既可接带to的不定式，也可接不带to的不定式； (4)构成否定句和疑问句时，要借助do/does/did。 [即时演练4]——单句语法填空/完成句子 (1)Does he dare　(to) tell　(tell) you what he has done? (2)The children don't dare　(to) make　(make) a sound while their parents are sleeping. (3)He dares to challenge　(challenge) all kinds of difficulties. (4)他很害羞以至于不敢在公共场合大声说话。 He is so shy that he daren't speak loudly in public. 5．need的用法 need作情态动词时，后跟动词原形，表示“需要，有必要”，无人称和数的变化，多用于否定句和疑问句中。由need引导的一般疑问句的肯定回答常用must或have to，否定回答常用needn't或don't have to。 ◆This is free service; you needn't pay for it. 这是免费服务，你不必付钱。 ◆—Need I make an appointment with Doctor Smith ahead of time? ——我需要提前与史密斯医生预约吗？ —Yes, you must./—No, you needn't/don't have to. ——是的，你需要。/——不，没必要。 need也可作实义动词，有时态、人称和数的变化，后可以接名词、代词、动词不定式或动词­ing形式等。其否定式和疑问式要借助助动词do/does/did。 [即时演练5]——单句语法填空/完成句子 (1)I love the weekend，because I needn't get up early to go to school. (2)All you need to do　(do) is complete this application form before the job interview. (3) 你不需要现在完成， 你有三天的时间。 You　 needn't finish it/don't need to finish it now; you have three days' time. [核心词汇] 1．related　adj.有关系的，相关的 [经典例句] Due to the growing popularity of environmentally­related and adventure travel, various types of trips are now being classified as ecotourism. 由于与环境相关的探险旅行越来越受欢迎，各种类型的旅行现在被归类为生态旅游。 (1)(be) related to与……有关系，有关联 (2)relate v．联系，使有联系 relate to/with...与……有关/相符；涉及 relate...to/with...把……与……联系起来 (3)relation n．关系；联系 in/with relation to关于；与……相关 (4)relative adj. 相对的； n．亲戚 relatively adv. 相对地；相当地 [练通]——单句语法填空 (1)Your talk show can cover anything related (relate) to English，or what school life is like in your country. (2)We need to explain why these issues are important and relate them to everyday life. (3)Lack of exercise is also a risk factor for heart disease but it's relatively　(relative) small when compared with the others. [写美]——应用文佳句之求助信 (4)我们学校将要举行一次与中国传统文化有关的主题班会。我写信来寻求你宝贵的建议。 Our school is going to hold a theme class meeting that is related to traditional Chinese culture　.I'm writing to ask for your valuable advice. 2．addict　n．对……着迷的人 [经典例句]　So, if you're a sugar addict and aren't able to say no to chocolate or cola, you had better download it now! 所以，如果你是一个爱吃糖的人并且不能拒绝巧克力或可乐，你最好现在就下载它！ (1)addicted adj.上瘾的；成瘾的；入迷的 be/become addicted to...沉迷于……；迷上…… (2)addiction n．上瘾；入迷；嗜好 addictive adj.(药物等)使人上瘾的；使人入迷的 [练通]——单句语法填空 (1) Addictive computer games make me addicted to it and become an addict　.And addiction to them makes me fall behind my classmates in study.(addict) (2)Her husband addicted himself to smoking　(smoke)，which had a bad effect on his health. [写美]——句式升级 (3)Because they are addicted to online games，many teenagers don't focus on their learning. →　Addicted to online games　，many teenagers don't focus on their learning.(形容词短语作状语) addicted，addiction常与介词to连用，后跟名词、代词或动词­ing形式作宾语。 3．in case　以防万一；假使，如果 [经典例句]　Sometimes there are so many knives and forks that you dare not pick them up in case you get it wrong. 有时候刀叉太多了，你不敢拿起来用，以防你弄错了。 in case of 如果；假使 in any case 在任何情况下；不管怎样 in that/this case 既然那样/这样；在那种/这种情况下 in no case决不(置于句首，句子要用部分倒装) as is often the case (with ...) (对……来说)这是常有的事 [练通]——用case的相关短语填空 (1)I don't see why I couldn't do it.　In any case　， I'm going to try. (2)　In case of fire, we must follow emergency procedures to ensure our safety. (3)You may think of giving up study.　In this case　， just think it over before making the decision. (4)The doctor shares his phone number with the patients in case they need medical assistance. (5)　In no case should we do anything that goes against the interests of people. 4．recommend v．推荐；劝告，建议 [经典例句]　I don't know what to read.Can you recommend anything? 我不知道读些什么，你能推荐点什么吗？ (1)recommend sth to sb 向某人推荐某物 (2)recommend (doing) sth建议(做)某事 recommend sb to do sth建议某人做某事 recommend that...(should) do...建议……(应该)做…… (3)It is/was recommended that...(should) do...有人建议……(应该)做…… [练通]——单句语法填空 (1)I strongly recommend developing　(develop) a good habit of going for a walk after supper for the sake of your health. (2)The doctor recommended me to take　(take) a good rest after long hours of hard work. (3)As for presents, I recommend that you (should) select　(select)some well­designed ones and they don't need to be expensive but appropriate. [写美]——应用文佳句之推荐信 (4)知道你对中国传统文化很感兴趣，所以我向你推荐这本书。 Knowing that you are interested in traditional Chinese culture， 　I recommend the book to you　. 5．attack v．侵袭；进攻；攻击　n．攻击；发作 [经典例句] The sugar in soft drinks forms acid and attacks our teeth for about 20 minutes each time we drink them. 每次我们喝软饮料的时候，软饮料中的糖会形成酸并侵蚀我们的牙齿大约20分钟。 (1)attack sb with sth用某物攻击某人 be attacked with患病 (2)launch/make an attack on/upon...对……发起进攻 under attack受到攻击 (3)a heart attack心脏病发作 [练通]——单句语法填空 (1)When an animal is under 　attack, it can run away or fight back. (2)The soldiers received the order to make an attack on/upon the city at dawn. [写美]——续写佳句之动作描写 (3)听说母亲患了癌症，这个女孩突然哭了起来。 Hearing her mother was attacked with cancer　，the girl burst out crying. [重点句型] each time引导时间状语从句 [经典例句]　The sugar in soft drinks forms acid and attacks our teeth for about 20 minutes each time we drink them. 每次我们喝软饮料的时候，里面的糖会形成酸，并侵蚀我们的牙齿大约20分钟。 (1)名词短语each/every time可用作从属连词，引导时间状语从句，意为“每当，每次”。 (2) 用作连词的其他名词性短语有：(the) next/last time, the first/second/...time, the day/week/month/year等。 (3)意为“一……就……”，常见的这类短语有the moment, the instant，the minute，the second等。 [写美]——完成句子 (1) The moment/minute/instant/second he saw the injured girl on the street　(他一在街上看到那个受伤的女孩)，he got off his car without hesitation and rushed like an arrow to assist her. (2) Every time/Each time I got into trouble　(每一次我遇到困难)，you would turn up in time and give me a hand. (3)　The next time you visit our city　(下次你来我们的城市时)，you must call me ahead of schedule so that I can make some necessary arrangements. Ⅰ.选词填空 be able to, have to, had better, dare, need 1．He has to/had better/need be sent to hospital, as he's seriously ill. 2．You need not come to the meeting if you're too busy. 3．Afraid of water, I wonder if I dare jump into the pool and swim. 4．I don't want to attend the meeting, but I have to because it's required by the director. 5．You don't have to buy a gift, but you can if you want to. 6．They dare not walk into the forest because it was so dark. 7．As a result of his hard work, Paul was able to take the lead in the race last week. 8．You need not worry before you go to the new school, for your classmates there will be friendly. 9．You had better not go to school without breakfast for it's bad for your health. 10．We don't have to take any food to the party as Sue will get everything ready. Ⅱ.完成句子 1．I showed Mum my new blouse but I dared not tell　(不敢告诉) her how much it cost. 2．He has broken one of his legs.As a result, he will have to be away　(将不得不离开) from school for three months. 3．Tom needn't be made/doesn't have to be made　(不必被强迫) to study—he always works hard. 4．The play is very popular.We had better not miss　(最好不要错过) the chance to enjoy it. 5．I had read the report three times, so I was able to understand　(能够理解) the author's ideas better. 6．You don't need to worry about/needn't worry about　(不必担心) the car any more, since I just had it repaired. $$