Unit 4 Section Ⅳ Lesson 3（课件PPT）-【金榜题名】2025-2026学年高一英语必修第二册高中同步学案（北师大版）

Unit 4 返回导航 * Unit 4 　Information Technology Section Ⅳ　Lesson 3 Unit 4 返回导航 * 目录 contents Part 01 基础梳理 新知落实 Part 02 语篇解读 要点领悟 Part 05 课时作业(三) Part 03 知识整合 核心突破 Part 04 综合训练 能力提升 Unit 4 返回导航 * 基础梳理 新知落实 返回导航 Unit 4 返回导航 * replace concerned rewarding addition content authority shallow Ⅰ.重点单词 基础单词 1． vt.取代；接替 2． adj.关切的，关心的 3． adj.有益的；有意义的 4． n．增添，添加 5． n．内容 6． n．权威人士，专家 7． adj.肤浅的，浅薄的 Unit 4 返回导航 * percent opinion focus maintain smart phone tablet 8． n．百分比；百分数 9． n．意见，看法，主张 10． vi.给予某物关注 n．焦点 11． vt.保持，维持 12． n．智能手机 13． n．平板电脑，药片 Unit 4 返回导航 * harmful harmless argue concentration base based limit limited limitation 拓展词汇 14. harm n．&vt.损害；危害→ adj.有害的→ adj.无害的 15．argument n．争论；争辩；争吵→ vt.& vi.讨论；辩论；争论 16．concentrate vi.& vt.集中；聚集→ n．集中 17．basis n．基础；根据→ v．以……为基础 n．基础→ adj.有根基的 18．limiting adj.局限的，限制性的→ vt.限制→ adj.有限制的，有限的→ n．限制，极限，限度 Unit 4 返回导航 * briefly create creation 19．brief adj.简短的；简要的 n．摘要；大纲→ adv.简要地；短暂地 20．creative adj.有创造性的→ vt.塑造；创作→ n．创作(物) Unit 4 返回导航 * focus on communicate through a screen show kindness to others be concerned with in addition maintain healthy relationships stay in touch with friends Ⅱ.重点短语 1． 　　　　　　　　关注 2． 通过屏幕交流 3． 与人为善 4． 关心…… 5． 除此之外 6． 保持健康的关系 7． 和朋友保持联系 Unit 4 返回导航 * on the move bring people closer to each other provide useful suggestions 8． 在移动中 9． 使人们更亲近 10． 提供有用的建议 Unit 4 返回导航 * Doing morning exercises Ⅲ.重点句型 1．First，talking online is no replacement for face to face contact. 首先，网上聊天不能代替面对面的接触。 [分析]　这是一个动名词短语作主语的句子。 [仿写]　做早操对你的健康有好处。 is good for your health. Unit 4 返回导航 * what he wanted to be 2．Online relationships may not be what they appear to be. 网络关系可能不是看上去的那样。 [分析]　what引导的名词性从句在句中作表语，what在从句中作 to be的表语。 [仿写]　他已经成了他10年前想成为的。 He has become ten years ago. Unit 4 返回导航 * make our country more and more beautiful 3．The Internet has also made communication more fun. 互联网也已经使交流变得更加有趣。 [分析]　这是一个主谓宾宾补句型，more fun作宾语communication的补足语。 [仿写]　我们将会使我们的国家越来越美丽。 We will ． Unit 4 返回导航 * 语篇解读·要点领悟 返回导航 Unit 4 返回导航 * Talking online is no replacement for face to face contact The Internet can make people self centered Online relationships may not be what they appear to be Ⅰ.Read the two blog posts and find out the topic sentence of each argument. Blog Post One： Argument 1： . Argument 2： . Argument 3： . Unit 4 返回导航 * The Internet makes communication much more convenient The Internet has also made communication more fun Online communication can actually bring people closer to each other Blog Post Two： Argument 1： . Argument 2： . Argument 3： . Unit 4 返回导航 * Ⅱ.Read the two blog posts carefully and choose the best answers. 1．What enables us to develop lifelong friendships? A．Communicating through a screen. B．Social skills developed through direct contact. C．Talking online. D．Advice from some parenting experts. Unit 4 返回导航 * 2．Friendships are built on ． A．the basis of trust B．online communication C．online popularity D．the number of likes Unit 4 返回导航 * 3．The Internet can develop friendship through the following except ． A．making communication more fun B．bringing people closer to each other C.making communication much more convenient　 D.spending too much time on the Internet Unit 4 返回导航 * 4．Which one is a traditional way of communicating? 　　　　　　　　　　 A．A smartphone. B．A computer. C．A phone call. D．A tablet. 答案　1.B　2.A　3.D　4.C Unit 4 返回导航 * harmful communicating kindness who Ⅲ.Complete the passage according to the text. Some people believe that the Internet is 1. (harm) to friendships.Talking to people online or 2. (communicate) through a screen makes it more difficult to concentrate or show 3. (kind) to others.It isn't a replacement for face to face contact.While it can connect you with other people 4. use a social media，face to face contact with others is important to help you build lifelong friendships. This is thought provoking because it shows that people still need face to face communication with others today. Unit 4 返回导航 * Spending popularity kindness what are doing 5. (spend) too much time on the Internet can also make you self centered，because you can become obsessed with 6. (popular) and gaining “followers”．Finally，you need to be careful with various online relationships，because you can never be 100 percent sure that 7. you read online is true. However，others believe that the Internet can help develop friendships in many ways.Firstly，the Internet makes communication much more convenient. You can stay in touch with friends wherever you are or what you 8. (do).Secondly，the Internet has also made communication more fun.You can share photos， Unit 4 返回导航 * with actually videos，news stories and websites 9. your friends online.Thirdly，online communication can 10. (actual) bring people closer to each other.Whenever someone needs help，friends from all over the world can immediately provide useful suggestions or information. Unit 4 返回导航 * 知识整合·核心突破 返回导航 Unit 4 返回导航 * 1．harm vt.& n．伤害，损害 harmful adj.有害的 do harm to...损害…… There is no harm in doing sth. 做某事是个好主意(或没有坏处) be harmful to 对……有害 Unit 4 返回导航 * Owing to a gorilla's unaggressive nature，the huge animal meant me no real harm.由于大猩猩生性温和， 这种巨大的动物并没有对我造成真正的伤害。 The polluted water and air are harmful to people's health.污染了的水和空气对人的健康有害。 Unit 4 返回导航 * harmful to does harm to no harm in your getting harmless to you [即学活用] (1)语法填空 ①It wouldn't do him any harm work harder. ②Cigarette smoke is also (harm) to people's health. (2)句型转换 ①The polluted air is harmful to our health. →The polluted air our health. ②It does no harm for you to get up early. →There is up early.　 →Getting up early is ．　 Unit 4 返回导航 * 2．replace vt.取代；接替；把……放回原处 replace sth. with/by sth. 用……替换…… take the place of sb. ＝take one's place 　　　　　　　　代替；替代 Unit 4 返回导航 * Teachers will never be replaced by computers in the classroom. 课堂上电脑永远不会取代老师。 Our cities will be better places if we replace cars with bicycles. 如果我们用自行车取代汽车， 我们的城市将变得更好。 We had a woman patient who was recovering from a knee replacement operation. 我们有一位女性病人， 她刚做完膝关节置换手术， 正在康复中。 Unit 4 返回导航 * with/by replacement replace take the place of [即学活用] (1)语法填空 ①I'll replace my old house a new one when I get enough money. ②If you cannot accept our suggestion，we will return the goods for (replace). (2)一句多译 你觉得谁会代替她参加这场演出？ Who do you suppose will her on the show? ＝Who do you suppose will her on the show? Unit 4 返回导航 * 3．concentrate vi.专注，专心；集中注意力 concentration n．集中；专心 (1)concentrate on (doing) sth.　聚精会 　神于(做)某事 concentrate one's attention/energy on/upon (doing)... 　集中某人的注意力/ 精力于(做)…… (2)concentration　 n．专心， 集中 (3)concentrated　adj.集中的， 全神贯注的 Unit 4 返回导航 * I can't concentrate with all that noise going on. 噪声不绝于耳， 我无法集中精力。 He concentrated his attention on the question of technology.　 他将注意力全部集中在技术问题上。 Neal kept interrupting，breaking my concentration. 尼尔不断打扰， 打断我的注意力。 Ethnic festivals in Guizhou are concentrated in April and May. 贵州的民族节日主要集中在4月和5月。 Unit 4 返回导航 * on teaching concentrated concentration [即学活用] 单句语法填空 ①He tried to concentrate his attention his chemical experiment. ②They will concentrate on (teach) the students to read and write. ③He made a (concentrate) effort to finish the work on time. ④I knew that (concentrate) was the first requirement for learning. Unit 4 返回导航 * 4．content n．内容；目录；容量；满足 adj.满足的；满意的 vt.使满足 feel/be content with 对……满足/满意 be content to do sth.满足于做某事 content oneself with 满足于 Unit 4 返回导航 * Your dogs can “tell” whether you look content or annoyed. 你的狗可以“识别”你是高兴还是愤怒。 That rich man is tired of city life，so he is content to live in the country. 那位富人厌倦了城市生活，所以他愿意生活在乡下。 We should never content ourselves with book knowledge only. 我们永远不要仅仅满足于书本知识。 Unit 4 返回导航 * to live herself with contents [即学活用] 单句语法填空 ①The Smiths are content (live)a simple life. ②She contented (her) with what she had achieved. ③My friend is quite content his new job. ④The (content) of his suitcase are doubtful. Unit 4 返回导航 * 5．in addition 除此之外 in addition to 除……之外 add up 把……加起来 add sth.to sth.把……加到/进……里 add up to 加起来共计/达(不用于被动语态) add to 增加；增添 add that...补充说…… Unit 4 返回导航 * These stoves are of high quality.In addition，the price is low. 这些炉子质量上乘。另外，价格低廉。 Please add some sugar to the milk to make it more delicious. 请在牛奶里加些糖使牛奶更美味。 The engine of the ship was out of order and the bad weather added to the helplessness of the crew. 船的马达失灵了，而且恶劣的天气增加了全体船员的无助感。 He added that he felt very sorry for not being able to come. 他补充说，他为自己不能来表示歉意。 Unit 4 返回导航 * In addition to In addition in addition [即学活用] 选词填空：in addition/in addition to ① the school，the village has a clinic，which was also built with government support．　 ②It's too late to go to the basketball match now. ，it's going to rain. ③Aunt Mary gave us sandwiches for our picnic and a bag of cookies ． Unit 4 返回导航 * added up to added to 完成句子 ④His whole school education no more than one year. 他所受的全部学校教育加起来不过一年。 ⑤The heavy rain the difficulty in rescuing the buried people. 大雨增加了营救被掩埋群众的困难。 Unit 4 返回导航 * 6．focus on 关注 focus one's attention/eyes/energy on 集中注意力/目光/精力于…… the focus of attention 关注的焦点 in focus 焦点对准的；清晰的 out of focus 焦点没对准的；不清晰的 Unit 4 返回导航 * It took her a lot of time to focus on preparing her classes and correcting her students' homework. 集中精力备课和批改学生的作业花费了她很多时间。 You'd better focus your attention on your studies. 你最好把你的注意力放在功课上。 She always wants to be the focus of attention. 她总是想成为关注的焦点。 The children's faces are badly out of focus in the photograph. 照片上孩子们的脸模糊不清。 Unit 4 返回导航 * on in focus my attention on [即学活用] 单句语法填空 ①Although the storybook is quite interesting，I have to put it aside and focus my attention my homework this week. ②The scientist knows nothing about the matter，because he is always losing himself scientific study. 一句多译 ③由于他在隔壁唱歌，我不能集中注意力看书。 A.I can't the book with him singing next door.(focus) B．I can't be absorbed in the book with him singing next door.(absorb) C．I can't concentrate (my attention) on the book with him singing next door.(concentrate) Unit 4 返回导航 * be absorbed in concentrate (my attention) on B．I can't the book with him singing next door.(absorb) C．I can't the book with him singing next door.(concentrate) Unit 4 返回导航 * makes it more difficult for children to concentrate or show 1．(教材P15)According to a parenting expert，Denise Daniels，communicating through a screen kindness to others. 据育儿专家丹尼斯·丹尼尔斯说，通过屏幕交流让孩子更难集中精力或善待他人。 Unit 4 返回导航 * 　[句式分析]　句中makes it more difficult for children to concentrate or show为make复合结构。其中it作形式宾语，真正的宾语是后面的动词不定式。 (1)make＋it＋形容词/名词＋that从句。 (2)make＋it＋形容词/名词＋to do。 (3)常用于这种句型的动词还有：think，consider，find，feel等。 Unit 4 返回导航 * During that time，increasing environmental awareness made it desirable. 在那个时期，日益增长的环境意识，使其(生态旅游)趋之若鹜。 The heavy rain made it impossible for us to go out.大雨使得我们无法出去。 He considered it important for him to learn spoken English well. 他认为学好英语口语对他来说是重要的。 I find it no use arguing with Bill because he never changes his mind. 我发现与比尔争辩没有用，因为他不会改变主意。 Unit 4 返回导航 * it to buy it a good habit it easy to get along with him [即学活用] 单句语法填空 ①He didn't make clear when and where the sports meeting would be held. ②People in the west make it a rule (buy) Christmas presents for their relatives and friends. 同义句转换 ③I think it is a good habit to get up early in the morning. →I think to get up early in the morning. ④We find that it is easy to get along with him. →We find ． Unit 4 返回导航 * It is that 2．(教材P15) these skills enable us to develop lifelong friendships. 正是这些技能才使我们能保持终生的友谊。 Unit 4 返回导航 * 　[句式分析]　句中“It is...that”为强调句型。其基本结构为“It is/was＋被强调部分＋that/who＋其他成分”，本句中被强调部分为these skills。 (1)强调句型的基本结构：It is/was＋被强调部分＋that/who＋句子其他部分。 (2)一般疑问句的强调句型：Is/Was it＋被强调部分＋that/who＋句子其他部分。 (3)特殊疑问句的强调句型：疑问词(被强调部分)＋is/was＋it＋that＋句子其他部分？ (4)not...until...结构的强调句型：It is/was not until...that... Unit 4 返回导航 * But rules alone don't secure an orderly society.It is the people who obey the rules that (who) matter. 但是制度本身不能保证一个有序的社会，遵守规则的人才是重要的。 Was it three years ago that he went to America for further study? 他是三年前去美国深造的吗？ When was it that you got promoted? 你究竟是什么时候升职的？ It was not until near the end of the letter that she mentioned her own plan. 直到将近信的结尾她才提及了自己的计划。 Unit 4 返回导航 * [名师点津] (1)在强调句型中It本身没有实际意义，但不能被其他词代替；被强调部分可以是主语、宾语和状语等；被强调部分指人时，可用that/who，其他情况一律用that。 (2)判断是不是强调句型的方法：把It is/was和that去掉，看句子的结构及语意是否完整，若完整，则为强调句型；若不完整，则不是。 Unit 4 返回导航 * it It that/who [即学活用] 单句语法填空 ①Why is that some people are so much more intelligent or creative than the rest of us? ② was at 5 o'clock that the visitors finally arrived at Pudong International Airport. ③—Were all the three people in the car injured in the accident? —No，it was only two passengers got hurt. Unit 4 返回导航 * didn't realize the importance of learning English well until It was not until he went to America as an exchange student that Not until he went to America as an exchange student did he realize 一句多译 ④直到作为交流生去了美国他才意识到学好英语的重要性。 A.He he went to America as an exchange student. B． he realized the importance of learning English well.(强调句型) C． the importance of learning English well.(倒装句) Unit 4 返回导航 * 综合训练 能力提升 返回导航 Unit 4 返回导航 * rewarding addition argument Creative limiting Ⅰ.单句语法填空 1．Gardening is a very (reward) pastime. 2．In (add) to an album，I gave him a pen and a pencil. 3．The (argue) among the two parties was blown up by the press. 4． (create) thinking is the soul and the core of human being's creation activities. 5．Lack of cash is a (limit) factor. Unit 4 返回导航 * briefly concentration on with harmful 6．Would you (brief) introduce yourself? 7．The doctor said that lacking sleep caused Tom poor memory and poor (concentrate). 8．As we all know，parents focus their attention their children's study，because it is concerned with their future. 9．Almost every teenager will experience a period in their life when they aren't content their parents. 10．It's said that fog is (harm) to our health，so we should wear masks on foggy days. Unit 4 返回导航 * is very harmful to is not content to be an actor only It is your ability to do the job that matters Ⅱ.完成句子 1． Some boys are too crazy about playing computer games，which their health. 有些男生对玩电脑游戏非常痴迷，这对他们的健康非常有害。 2．Though the actor has made great achievements，he ． 尽管这位演员已经取得了很大成就，但他并不满足于只是一名演员。 3． ，not where you come from or what you are.关键是你的工作能力，而不是你从哪里来或你是谁。 Unit 4 返回导航 * concentrate our attention on As far as I am concerned 4．We must urgent problems.　 我们必须把注意力集中在紧急的问题上。 5． ，it's not easy for our parents to make money and keep us at school for education.在我看来，我们的父母赚钱让我们留在学校接受教育是不容易的。 Unit 4 返回导航 * 课时作业（三） 点击进入 word Unit 4 返回导航 * 谢谢观看 $$