Unit 3 Section Ⅱ Learning About Language(课件PPT)-【精讲精练】2024-2025学年高中英语选择性必修第四册（人教版2019）

Section Ⅱ　Learning About Language 栏目导航 UNIT 3　SEA EXPLORATION 1 栏目导航 语法精讲 技能培养 01 核心知识 关键能力 02 课时作业 知能达标 04 随堂演练 巩固提升 03 栏目导航 UNIT 3　SEA EXPLORATION 1 01 语法精讲 技能培养 栏目导航 栏目导航 UNIT 3　SEA EXPLORATION 1 栏目导航 UNIT 3　SEA EXPLORATION 1 栏目导航 UNIT 3　SEA EXPLORATION 1 栏目导航 UNIT 3　SEA EXPLORATION 1 栏目导航 UNIT 3　SEA EXPLORATION 1 栏目导航 UNIT 3　SEA EXPLORATION 1 To see to work to adapt to put 栏目导航 UNIT 3　SEA EXPLORATION 1 栏目导航 UNIT 3　SEA EXPLORATION 1 栏目导航 UNIT 3　SEA EXPLORATION 1 to make to see to be engaged to meet 栏目导航 UNIT 3　SEA EXPLORATION 1 栏目导航 UNIT 3　SEA EXPLORATION 1 栏目导航 UNIT 3　SEA EXPLORATION 1 to be distracted to have to study 栏目导航 UNIT 3　SEA EXPLORATION 1 to hold an English Drama Competition 栏目导航 UNIT 3　SEA EXPLORATION 1 栏目导航 UNIT 3　SEA EXPLORATION 1 栏目导航 UNIT 3　SEA EXPLORATION 1 栏目导航 UNIT 3　SEA EXPLORATION 1 to explore to cancel to study 栏目导航 UNIT 3　SEA EXPLORATION 1 duty/responsibility to cherish food 栏目导航 UNIT 3　SEA EXPLORATION 1 栏目导航 UNIT 3　SEA EXPLORATION 1 栏目导航 UNIT 3　SEA EXPLORATION 1 栏目导航 UNIT 3　SEA EXPLORATION 1 To improve to find I am happy to inform you that 栏目导航 UNIT 3　SEA EXPLORATION 1 栏目导航 UNIT 3　SEA EXPLORATION 1 栏目导航 UNIT 3　SEA EXPLORATION 1 to remember to love to release experience a different life 栏目导航 UNIT 3　SEA EXPLORATION 1 栏目导航 UNIT 3　SEA EXPLORATION 1 栏目导航 UNIT 3　SEA EXPLORATION 1 栏目导航 UNIT 3　SEA EXPLORATION 1 to have entered to jump to be held 栏目导航 UNIT 3　SEA EXPLORATION 1 to be waiting not to expect 栏目导航 UNIT 3　SEA EXPLORATION 1 02 核心知识 关键能力 栏目导航 栏目导航 UNIT 3　SEA EXPLORATION 1 栏目导航 UNIT 3　SEA EXPLORATION 1 栏目导航 UNIT 3　SEA EXPLORATION 1 professional by Whatever profession you choose 栏目导航 UNIT 3　SEA EXPLORATION 1 栏目导航 UNIT 3　SEA EXPLORATION 1 栏目导航 UNIT 3　SEA EXPLORATION 1 mixture mixed is full of mixed feelings 栏目导航 UNIT 3　SEA EXPLORATION 1 03 随堂演练 巩固提升 栏目导航 栏目导航 UNIT 3　SEA EXPLORATION 1 to help to teach To honor to interview to be told 栏目导航 UNIT 3　SEA EXPLORATION 1 decided to explore to carry out the plan to send a deepwater machine The machine controlled remotely by scientists dive deep into the sea To conduct such research 栏目导航 UNIT 3　SEA EXPLORATION 1 04 课时作业 知能达标 点击进入Word 栏目导航 栏目导航 UNIT 3　SEA EXPLORATION 1 谢谢观看 栏目导航 UNIT 3　SEA EXPLORATION 1 复习动词不定式 一、动词不定式的句法功能 动词不定式在句中可以作主语、表语、宾语、宾语补足语、定语和状语，它多表示具体的或某次具体行为。 1．作主语 动词不定式作主语可以表示将来特定的某一次具体动作。 To reuse and recycle this kind of waste is to save resources to a large extent. 再利用和回收这种垃圾在很大程度上是节约资源。 But no matter when you travel，it's a good idea to make your reservations at least 90 days in advance.(2023·浙江1月卷) 但无论你什么时候去旅行，最好至少90天前预订。 不定式短语作主语时可以组成常用句式“It＋be＋adj.＋of/for sb to do sth”，其中，it是形式主语，不定式短语是真正的主语。且当形容词表达事物的特征时，其后用for sb，而当形容词表达人的特征或品质时，其后用of sb如： It is generous of him to contribute so much. 他贡献这么多，真是太慷慨了。 It is important for us to live a low carbon life. 对我们来说，过低碳生活很重要。 To make you understand him completely is impossible. ＝It is impossible to make you understand him completely. 让你们完全了解他是不可能的。 [即时训练1]　单句语法填空 ①______ (see) is to believe. ②It is important for us students _______ (work) out on a regular basis. ③It will be beneficial for you ________(adapt) to the new environment and life. ④You can't help wondering how hard it was for the people then _______ (put) all those rocks into place. 2．作表语 不定式作表语时须放在系动词后面，表示具体动作或将来动作，系动词除be外，还有seem、 appear等。 (1)带wh­疑问词的动词不定式短语可作表语。 (2)句中如果主语部分有实义动词do的各种形式，作表语的动词不定式实际上是do的引申，即表示do所做的内容，这时动词不定式可省略to。 Her wish is to become a teacher. 她的愿望是当一名教师。 Our difficulty is where to find a guide. 我们的困难是到哪里去找向导。 He seems (appears) to be living in the area. 他似乎正住在这个地区。 The least I can do is (to) write to you. 我至少能做到的是给你写信。 [即时训练2]　单句语法填空 ①If our goal is _______ (make) this country the best place in the world for tech，AI is surely one of the greatest opportunities before us. ②In that moment，I seemed ______(see) the girl's innocent smile，tears running down my face. ③What we have been looking forward to is _____________(engage) in the community work for long. ④We are _______(meet) at the school gate at eight on Saturday morning，where a bus will be waiting to pick us up. 3．作宾语 英语中有些动词后接另一动词作宾语时，该动词习惯上要用不定式形式，而不用动名词形式，这类动词(及短语动词)主要有： 三个希望两答应：hope、wish、want、agree、promise 两个要求莫拒绝：demand、ask、refuse 设法学会做决定：manage、learn、decide 不要假装在选择：pretend、choose What I want to know is when we're going to get paid. 我想知道的是我们什么时候发工资。 He didn't know whether to laugh or to cry when he heard the words. 听了这些话，他啼笑皆非。 [即时训练3]　单句语法填空/完成句子 ①The main reason is that your self­control is not strong and you tend ________________ (distract) in class. ②If it is convenient for you next Tuesday，I expect _______(have) a wonderful talk with you. ③Inspired by Dr.Yuan，I'm determined ________ (study) hard now. ④为激发学生学习英语的兴趣，我们计划举办一次英语戏剧比赛。(应用文之邀请信) To arouse students' interest in learning English，we've planned ___________________________________. 4．作定语 动词不定式作定语，通常位于所修饰的词之后，即作后置定语，说明被修饰词的特征。 (1)抽象名词ability、 attempt、 chance、 courage、 decision、 effort、 failure、 promise、 way、 wish等后常接动词不定式作定语。 (2)序数词、形容词最高级或the only、the last、the next等后或被这些词修饰的名词后，也常接动词不定式作定语。 Can you think up a good way to deal with the ever increasing prices? 你们能想出一个应对日益上涨的物价的好办法吗？ I've got my wife and son to look after. 我还有妻子和儿子需要照顾。 But she gave up the chance to go abroad. 但是她放弃了出国的机会。 Who was the last one to leave the classroom last night? 昨晚谁是最后一个离开教室的？ (1)如果动词不定式和被修饰词之间是逻辑上的动宾关系，则动词不定式多半表示未来的动作，翻译时常须在动词不定式前加“要”字。 (2)在处于动宾关系的情况下，如果动词不定式是不及物动词，其后要加一个结构上或含义上所需的介词。 [即时训练4]　单句语法填空/完成句子 ①Cycling is the most economical，sustainable and fun way __________ (explore) the city.(2023·新高考Ⅰ卷) ②The last day__________ (cancel)registration and receive a full refund is June 15.(2023·浙江1月卷) ③I'm glad you've got the chance ________(study) in China and I really do suggest you come.(应用文之建议信) ④我真诚地呼吁，每个人都应该意识到珍惜食物的责任。(应用文之倡议书) I'd like to make a sincere appeal that every single one should be aware of our ___________________________________． 5．作状语 (1)不定式作目的状语，可以放在句首、句中和句尾，可以是to do、in order to do、so as to do等形式。 To spread their beauty and spirit，I wrote four Chinese characters to enter the exhibition. 为了传播他们的美和精神，我写了四个汉字来参加展览。 We managed to leave this spot to climb higher because of the spare time until sunset.(2023·全国乙卷) 我们设法离开这个地方，爬到更高处，因为有空闲时间直到日落。 (2)不定式作结果状语，常放在句尾，表示出人意料的结果，常用only to do、enough to do、too...to do...、so/such...as to do等形式。 As they washed the wounds，my mother looked at her wedding ring on her finger，only to find the diamond was gone. 当他们清洗伤口时，我母亲看了看手指上的结婚戒指，却发现钻石不见了。 (3)不定式作原因状语，多放在句中，用于表示喜怒哀乐等心理活动或情绪、情感的词汇后面。 I am sorry to know you argued with your mother about whether you should surf the Internet or not. 我很遗憾地得知，你和你妈妈就你是否应该上网产生了争执。 [即时训练5]　单句语法填空/完成句子 ①__________(improve) your reading skills，you should read as many Chinese books as possible. ②The next morning，we hurried into the kitchen and looked for Dad，only _______(find) that he had gone out. ③我很高兴地通知你，下周我们学校将举办汉服文化节。 _____________________________ Hanfu Cultural Festival will be held in our school next week. 6．作宾语补足语 不定式作宾语补足语的情况是：一是在有些动词或动词短语后面接带to的不定式；二是在感官或使役动词后接不带to的不定式(主动语态)。 Helping the next generation to have a healthy and active childhood is of great importance. 帮助下一代拥有一个健康、积极的童年是非常重要的。 On behalf of our Student Union，I sincerely invite you to participate in an English Speech Contest and serve as a judge. 我代表我们学生会真诚地邀请你参加英语演讲比赛并担任评委。 I heard them sing yesterday. ＝They were heard to sing yesterday. 我昨天听见他们唱歌了。 [即时训练6]　单句语法填空/完成句子 ①I turned to my English teacher for help，who advised me ___________ (remember) words in sentences. ②To inspire more people _______(love) reading and know the benefits of reading，many activities will be held in our school. ③It enables us __________(release) the study pressure because we can relax by reading different books. ④我们将参加这些活动，它们让我们体验不同的生活。 We will attend the activities，which make us _______________________． 二、动词不定式的形式 时态 主动 被动 意义 一般时 to do to be done 与谓语动作同时或在其后发生 完成时 to have done to have been done 在谓语动作之前发生 进行时 to be doing — 在谓语动作发生时，不定式的动作正在进行 完成进行时 to have been doing — 在谓语动作发生前一直在进行 It is my great honor to invite you to take part in the English Speaking Competition. 很荣幸邀请你参加这次英语演讲比赛。 I felt very happy to have received the gift sent by you last Sunday. 收到了你上周日寄来的礼物，我感到非常高兴。 The kids seemed to have understood the true meaning of lilacs. 孩子们似乎已经理解了丁香花的真正含义。 The little boy pretended to be reading the book when his mother entered the room. 当他妈妈走进房间时，小男孩假装在看书。 [即时训练7]　单句语法填空/完成句子 ①As a high school freshman，I am honored _______________(enter) a new chapter in my life. ②(2023·浙江1月卷)If you're looking to live a more sustainable lifestyle，not everyone around you will be ready _______(jump) on that bandwagon. ③As scheduled，the contest is __________(hold) on Nov.18th，from 2 p．m.to 4 p.m. ④史蒂夫坐在公园里，似乎正在等人，但似乎并不期待会发生什么事。 Steve sat in the park，appearing _____________ for somebody，but appearing _____________ something to happen. [核心词汇·练透] (1)by profession　在职业上；就职业来说 (2)professional adj. 专业的；职业的；职业性的 　　　 　 n. 专业人员；职业运动员 (3)professionally adv. 职业地 [经典佳句]　A software engineer by profession，Steve was a keen lover of the piano. 史蒂夫的职业是软件工程师，他酷爱钢琴。 [即时训练]　单句语法填空/完成句子 ①He dealt with the problem in a highly ____________ (profession) way. ②Ville's wife is Chinese and she is a cook __ profession. ③无论你选择什么职业，努力做到最好吧！ ______________________________，work hard to be the best! (1)a mixture of 　……的混合 (2)mix vt.(使)混合，(使)调和；使结合 mix sth with sth 把……和……混合 mix up 混淆；拌和；调和 (3)mixed adj. 复杂的；混合的 [经典佳句]　With a mixture of fear and anxiety，Mary started leaving the restaurant to search for her friend. 带着恐惧和焦虑，玛丽开始离开餐厅去寻找她的朋友。 [即时训练]　单句语法填空/完成句子 ①The _______(mix) of water and blood ran through my backpack and all over me. ②A _____(mix) feeling of embarrassment and fright stormed through me and my heart started beating wildly.(读后续写之心理描写) ③回顾他的童年，他充满了复杂的感情。 Looking back on his childhood，he _________________________． Ⅰ.单句语法填空 1．I have an urge _______ (help) people out when they're in trouble. 2．For thousands of years，people have told fables (寓言 ) _________ (teach) a lesson or to pass on wisdom.(2023·全国甲卷) 3．________(honor) the poet，May 5 is set as the Dragon Boat Festival every year. 4．I would be grateful if you give me an opportunity ____________ (interview) me. 5．George returned after the war，only __________(tell) that his wife had left him. Ⅱ.使用本单元所学语法知识(动词不定式)翻译下面的语段 The scientists 1.__________________(决定探索) the deep ocean in order to find out what exists on the floor of the sea.Their first step 2._____________ ______(实施这项计划) is 3.___________________________(发送一台深水机器) designed specially for the research.4._______________________ __________________(机器由科学家们远程控制) on the surface of the sea is in a shape of an egg.They will watch the machine 5.____________________(潜入大海深处).6.________________________(进行这样的研究) is a long project that scientists have prepared for several months. $$