Unit 4 Information Technology（复习课件）英语北师大版必修第二册

北师大版·必修第二册 Unit 4 Information Technology 单元复习 Unit 4 Information Technology 复习目标 知识图谱 考点串讲 单元语法 主题写作 综合训练 复习目标 知识图谱 考点串讲 单元语法 主题写作 综合训练 CONTNETS 1.学生能够掌握本单元重点词汇，如 enable, convenience, effect, addicted, recommend, replace, harm, concentrate 等，并能在不同语境中正确运用。（重点掌握） 2.学会重要短语和句型，如 be addicted to, enable sb. to do sth., have an effect on, keep in touch with, It makes it +adj. for sb. to do sth., while 引导让步状语从句等，并能利用这些短语和句型进行口头和书面表达。（重点掌握） 3.提高阅读理解能力，能够读懂关于信息技术、网络利弊、数字化生活主题的文章，理解文章主旨大意、细节信息，并能根据文章内容进行推理判断。​ 4.培养书面表达能力，能够运用所学词汇、短语和句型，围绕合理使用手机网络、网络利弊给朋友写建议邮件，做到词汇丰富、句式多样、逻辑清晰。 复习目标 知识图谱 It makes it +adj. for sb. to do sth., 过去将来时 单元语法 while 引导让步状语从句 2. 介绍自己的常用句式 3. 必背短文模板 主题写作 1. 个人简介开头常用句式 名词：convenience 便利；effect 影响；content 内容；reality 现实；creativity 创造力；argument 论点 形容词：digital 数字的；addicted 沉迷的；harmful 有害的；instant 即时的；obviously 明显的；powerful 强大的 重点单词 动词：enable 使能够；download 下载；replace 取代；recommend 推荐；harm 伤害；concentrate 集中 enable sb. to do 使某人做 keep in touch with 保持联系 重点短语 be addicted to 沉迷于 have an effect on 对…… 有影响 concentrate on 专注于 Information Technology Unit 4 Information Technology 考点串讲 北师大版·必修第二册 考点串讲 重点词汇 单词 词形 意思 vt. 使能够，使发生 n. 方便，便利 n./v. 效应，影响 v./n. 使上瘾；瘾君子 vt. 推荐；建议 vt. 下载 vt. 取代，替换 enable convenience effect addict recommend download replace 考点串讲 重点词汇 单词 词形 意思 vt./n. 伤害，损害 vi. 集中（注意力） n. 内容 vt./n. 欺骗；诡计 n./v. 实验；做实验 vt. 确保，保证 harm concentrate content trick experiment ensure 考点串讲 词形转换 able adj. 能够 → enable vt. 使能够 → ability n. 能力 → disabled adj. 残疾的 convenient adj. 便利的 → convenience n. 便利 → inconvenient adj. 不方便的 effect n. 影响 → effective adj. 有效的 → effectively adv. 有效地 addict v. 使上瘾 → addicted adj. 沉迷的 → addiction n. 成瘾 → addictive adj. 使人上瘾的 recommend vt. 推荐 → recommendation n. 推荐；建议 create v. 创造 → creative adj. 有创造力的 → creativity n. 创造力 → creation n. 作品 obvious adj. 明显的 → obviously adv. 明显地 考点串讲 词形转换 harm v./n. 伤害 → harmful adj. 有害的 → harmless adj. 无害的 concentrate v. 集中 → concentration n. 专注力 real adj. 真实的 → reality n. 现实 → realize vt. 意识到；实现 power n. 力量 → powerful adj. 强大的 → powerless adj. 无力的 argue v. 争论 → argument n. 论点；争论 vary v. 变化 → various adj. 各种各样的 → variety n. 多样性 explore v. 探究 → exploration n. 探索 admit v. 承认 → admission n. 承认；入场 考点串讲 词汇精讲 1.enable vt. 使能够，使发生 情景导学 Digital tools enable us to get information from all over the world. 数字工具使我们能够获取来自世界各地的信息。 用法归纳 ① enable sb. to do sth. 使某人能够做某事 ⚠️ 不能说 enable sb. do /enable sb. doing 词汇拓展 ① able adj. 有能力的； ②disable vt. 使丧失能力； ③disabled adj. 残疾的 即时训练 New apps enable students ____________(learn) online at home. to learn 考点串讲 词汇精讲 2. convenience n. 方便，便利 情景导学 For convenience, many people choose to shop online. 为了方便，很多人选择网上购物。 用法归纳 ①at one’s convenience 在某人方便的时候 ②It is convenient for sb. to do sth. 某人方便做某事（主语不能是人） 词汇拓展 ①convenient adj. 方便的； ②inconvenient adj. 不方便的 即时训练 Many people enjoy the ________________(convenient) of mobile payment. convenience 考点串讲 词汇精讲 3. effect n. 效应；影响 情景导学 Screen time has a bad effect on teenagers’ sleep. 屏幕时间对青少年的睡眠有不良影响。 用法归纳 ① have an effect on… 对…… 产生影响 ②come into effect 生效；take effect 起作用 词汇拓展 ①effective adj. 有效的 ②affect v.（动词）影响 即时训练 Social media can have a positive as well as negative ______(affect) on teenagers. effect 考点串讲 词汇精讲 4. addicted adj. 沉迷的，入迷的 情景导学 Some teenagers are addicted to short video apps. 一些青少年沉迷短视频软件。 用法归纳 ①be addicted to (doing) sth. 沉迷于（做）某事（to 是介词，后接名词 /doing） 词汇拓展 ①addict v. 使上瘾； ②addiction n. 网瘾，嗜好； ③addictive adj. 使人上瘾的 即时训练 He is addicted to __________(play) mobile games. playing 考点串讲 词汇精讲 5. recommend vt. 推荐；建议 情景导学 Experts recommend limiting daily screen time for teenagers. 专家建议限制青少年每日屏幕使用时间。 用法归纳 ①recommend doing sth. 建议做某事 ②recommend sb. to do sth. 建议某人做某事 ③recommend that …(should) do 虚拟语气 词汇拓展 ①recommendation n. 建议，推荐 即时训练 I recommend ________________(set) a time limit for phone use. setting 考点串讲 词汇精讲 6. harm vt.& n. 伤害，损害 情景导学 Too much online time will harm our physical health. 过多上网时间会损害我们的身体健康。 用法归纳 ①do harm to … 对…… 造成伤害 词汇拓展 ①harmful adj. 有害的； ②harmless adj. 无害的 即时训练 Spending long hours online does great harm______ our eyes. to 考点串讲 词汇精讲 7. concentrate vi. 集中（注意力） 情景导学 It is hard to concentrate on study with messages popping up. 消息不断弹出，很难专注学习。 用法归纳 ①concentrate on (doing) sth. 专注于（做）某事 词汇拓展 ①concentration n. 专注力 即时训练 You should concentrate on ___________(finish) your homework first. finishing 考点串讲 词汇精讲 8. replace vt. 取代，替换 情景导学 The Internet will not replace face to face communication. 互联网不会取代面对面交流。 用法归纳 replace A with/by B 用 B 取代 A 词汇拓展 ①replacement n.替代 即时训练 Nothing can replace _______________(talk) with people in real life. talking 考点串讲 句型精讲 While the Internet can bring people closer together, it can also harm friendships. Sentence 1 主句 while 引导让步状语从句，意为 “虽然，尽管” 译文：虽然互联网可以拉近人与人之间的距离，但它同样也会损害友谊。 即时训练 虽然网络很便利，但它也带来很多问题。 While the Internet is convenient, it also brings many problems. 考点串讲 句型精讲 Communicating through a screen makes it more difficult for children to show kindness to others. Sentence 2 谓语 形式宾语 宾语补足语 真正宾语 译文：隔着屏幕交流会让孩子们更难向他人表达善意。 即时训练 Phones make it easy ________(get) all kinds of online information. to get Unit 4 Information Technology 北师大版·必修第二册 单元语法 单元语法 过去将来时 过去将来时 1. 含义 立足于过去，描述：从过去的某个时间点看，将要发生的动作 / 状态。 多用于宾语从句、故事转述。 2. 结构 ① would + 动词原形（最通用） 肯定：主语 + would + do 否定：主语 + would not (wouldn’t) + do 疑问：Would + 主语 + do…? ② was/were going to + do（过去计划、打算；过去迹象预示） 主语单数 → was going to do 主语复数 / I/you → were going to do 区别： would do：单纯过去将来，临时决定 was/were going to do：过去已有计划、有迹象 单元语法 过去将来时 3. 时间标志（不单独出现，依托过去语境）主句动词是过去式：said, thought, told, hoped, decided 例如： He said (过去) that he would come.（站在 “said” 当时，将来要来） 单元语法 过去将来时 4.例句 He said he would help me. 他说他会帮我。 I thought it would rain. 我当时以为会下雨。 She was going to visit her grandma. 她那时打算去看望奶奶。 They told me they weren’t going to give up. 他们告诉我他们不打算放弃。 单元语法 过去将来时 即时训练（单句填空） 用 would do /was/were going to do 填空 He told me he ____________ (join) in the activity. I thought it ____________ (be) a fine day the next day. She _________________ (travel) to Beijing, but she fell ill.（过去计划） They said they ____________ (not give) up their dream. My mom said she ____________ (buy) me a new notebook. . wouldn’t give would be was going to travel would join would buy Unit 4 Information Technology 北师大版·必修第二册 主题写作 主题写作 Personal profile 主题写作：Personal Profile 个人简介 写作解析 1.主题解读：文体定位：书面个人简介，常用于英文作业、社团申请、参赛报名表，介绍身份、性格、爱好、特长、目标；一般 80‑120 词。 2.写作思路: 开头：基本信息（姓名、年龄、身份） 简单交代我是谁。 主体 1：性格品质（2 个性格形容词，简单举例） 主体 2：爱好 / 特长经历（做什么、从中收获什么） 结尾：愿望、目标（想要做什么、期待什么） 逻辑公式：身份 → 性格 → 爱好 / 经历 → 目标 主题写作 写作思路 个人介绍 开头段 中间段 结尾段 I am …, a Grade … student. My name is … and I am a student from Class …, Grade …. As a Grade … student, I’d like to introduce myself briefly. 性格：I am outgoing / hard‑working / responsible and always ready to help others. What makes me special is that I am good at getting on with people. 爱好&经历In my spare time, I am fond of …, which brings me much joy. I take a great interest in … and I am good at …. I take an active part in school activities, where I have learned teamwork. I hope to make more progress in the future. I am looking forward to new chances and challenges. I wish to improve myself and do something meaningful. I believe I can do better with my efforts. 主题写作 写作素材 3. 写作素材 基础信息 I am … 我是……；a Grade … student 某年级学生 性格 out‑going 外向的；easy‑going 随和的；hard‑working 勤奋的；responsible 有责任心的；creative 有创造力的 爱好特长 be fond of 喜爱；be good at 擅长；take an interest in 对…… 感兴趣；take part in 参加 结尾目标 I hope to… 我希望……；I am looking forward to 期待…… 主题写作 写作素材 中间句型（介绍身份） I am …, a Grade … student. 我是……，一名…… 年级学生。 👉例句：I am Li Hua, a Grade 10 student. 我是李华，一名十年级学生。 My name is … and I am a student from Class …, Grade …. 我叫……，是…… 年级…… 班的学生。 👉例句：My name is Wang Min and I am a student from Class 2, Grade 10. 我叫王敏，是十年级 2 班的学生。 As a Grade … student, I’d like to introduce myself briefly. 作为一名…… 年级学生，我想简单介绍一下自己。 👉例句：As a Grade 10 student, I’d like to introduce myself briefly. 作为一名十年级学生，我想简单介绍一下自己。 主题写作 写作素材 中间句型（性格、爱好、特长、经历） ✨描述性格 I am outgoing/hard‑working/responsible and always ready to help others. 我外向 / 勤奋 / 有责任心，总乐于帮助别人。 👉例句：I am easy‑going and always ready to help my classmates. 我性格随和，总乐于帮助同学。 What makes me special is that I am good at getting on with people. 我的特别之处在于我善于与人相处。 👉例句：What makes me special is that I am good at getting on with people around me. 我的特别之处在于我善于和身边的人相处。 主题写作 写作素材 中间句型：（性格、爱好、特长、经历） ✨描述爱好特长 In my spare time, I am fond of …, which brings me much joy. 空闲时，我喜欢……，它带给我很多快乐。 👉例句：In my spare time, I am fond of reading, which brings me much joy. 空闲时我喜欢阅读，它带给我很多快乐。 I take a great interest in … and I am good at …. 我对…… 很感兴趣，并且擅长……。 👉例句：I take a great interest in sports and I am good at playing basketball. 我对运动很感兴趣，擅长打篮球。 I take an active part in school activities, where I have learned teamwork. 我积极参加校园活动，从中学会了团队合作。 👉例句：I take an active part in volunteer activities, where I have learned teamwork. 我积极参加志愿活动，从中学会了团队合作。 主题写作 写作素材 结尾句型（愿望、期待、目标） I hope to make more progress in the future. 我希望在未来取得更大进步。 👉例句：I hope to make more progress and challenge myself more. 我希望取得更大进步，更多地挑战自我。 I am looking forward to new chances and challenges. 我期待新的机会与挑战。 👉例句：I am looking forward to new chances in the coming term. 我期待新学期的新机会。 I wish to improve myself and do something meaningful. 我希望提升自我，做一些有意义的事。 👉例句：I wish to improve myself and do something meaningful for our class. 我希望提升自我，为班级做些有意义的事。 I believe I can do better with my efforts. 我相信通过努力我可以做得更好。 👉例句：I believe I can do better with my continuous efforts. 我相信通过不断努力我可以做得更好。 主题写作 写作模板 I am ______, a Grade ____ student. I am ________________(性格). In my spare time, I am fond of ________, which brings me much joy. I also take an active part in ____________(活动), where I have learned ____________(收获). I hope to ________________. I am looking forward to new chances and challenges. 主题写作 写作练习 假定你是李华，请写一篇个人简介，用于申请读书社团。内容 需包含： 1.基本个人情况 2.加入社团的理由 注意： 1. 词数80左右； 2. 可以适当增加细节，以使行文连贯； 3. 开头和结尾已给出，不计入总词数。 主题写作 写作范文 I am Li Jia, a Grade 10 student. I am gentle and easy‑going. In my spare time, I am fond of reading literature books, which brings me much joy. I also take an active part in class reading activities, where I have learned to exchange opinions with my partners. I hope to join the reading club and enjoy reading together with other members. I am looking forward to new chances and challenges. Unit 4 Information Technology 北师大版·必修第二册 综合训练 综合训练 一、根据句意及汉语提示写出单词。 The new software will ________（使能够）us to finish work faster. It is ________（方便的）for us to get information on the Internet. Bad videos are ________（有害的）to teenagers’ mental health. We should ________（集中）our attention on important tasks online. There are ________（各种各样的）resources for us to explore on the web. enable convenient harmful concentrate various 综合训练 二、单句语法填空 Modern technology ________ (able) people to work at home. Shopping online brings us great ________ (convenient). Playing games too much may lead to net ________ (addict). We should take ________ (effect) measures against online harm. Social media has ________ (vary) influences on young people. enables convenience addiction effective various 综合训练 三、完成句子 网络对我们的生活有很大影响。 The Internet ________ ________ great ________ ____ our life. 这部电影容易使人上瘾。 This movie is easy ________ ________ ________. 我们应当把精力集中于学习。 We should ________ ________ our study. 科技使我们能够探索更多未知事物。 Technology ________ ________ ________ explore more unknown things. has an to be addictive concentrate on enables us to effect on 综合训练 四、句型转换 The Internet enables people to get information quickly.（改为被动） People ________________________ get information quickly by the Internet. Too much screen time does harm to our eyes.（改写为 harmful） Too much screen time ________________________ our eyes. He argued about the problem with his classmates.（对划线部分提问） ________ ________ he ________ about with his classmates? Many teens are addicted to short‑video apps.（用 addiction 改写句子） Many teens suffer ________ ________ ________ short‑video apps. It is obvious that online world changes our reality.（改为副词修饰句子） ________, the online world changes our reality. are enabled to is harmful to What did from addiction to argue Obvioualy 综合训练 五、短文语法填空 阅读短文，填入合适单词或括号内动词不定式形式 Nowadays, the Internet 1.________ (enable) us to live a 2.________ (convenience) life. However, it also has some bad effects. Some teenagers develop screen 3.________ (addict). They cannot concentrate 4.________ their lessons. We should take effective steps 5.________ (create) a safe online environment for them. to create enables convenient addiction on 北师大版·必修第二册 感谢聆听 $