Unit 1 Section Ⅴ（课件PPT）-【精讲精练】2026-2027学年高中英语选择性必修第一册（北师大版）

该高中英语课件围绕“社交关系”主题，以文本“SO CLOSE, YET SO FAR”为核心，涵盖社交媒体相关词汇（如socialise、associate with）、重点句式（如“否定词+比较级”表最高级、部分倒装）及语篇理解，通过读文清障实现文本导入，衔接基础知识落实与语篇分析，搭建从输入到输出的学习支架。 其亮点在于语篇贴近学生生活，结合文化意识对比现实与虚拟社交，通过语篇结构梳理和问题设计提升思维品质，基础知识部分的词汇拓展与即学活用练习培养学习能力。例如核心句式“find it + adj + to do”的讲解结合例句与填空练习，助力学生提升语言能力，教师可借助系统资源高效开展教学。

Section Ⅴ　Lesson 3 UNIT 1　RELATIONSHIPS 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 读文清障•篇章助读 01 基础知识•新知落实 02 语篇理解•要点领悟 03 核心知识•关键能力 04 随堂演练•巩固提升 05 课时作业•知能达标 06 栏目导航 UNIT 1　RELATIONSHIPS 1 读文清障•篇章助读 栏目导航 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 基础知识•新知落实 栏目导航 栏目导航 UNIT 1　RELATIONSHIPS 1 flow reserved deadline chase desperate delay bend 栏目导航 UNIT 1　RELATIONSHIPS 1 rudely rudeness complaint bare constantly distract 栏目导航 UNIT 1　RELATIONSHIPS 1 real really stimulate depress depressing depression appoint 栏目导航 UNIT 1　RELATIONSHIPS 1 social with obsess chatter up up all 栏目导航 UNIT 1　RELATIONSHIPS 1 found it hard to learn Never have I seen 栏目导航 UNIT 1　RELATIONSHIPS 1 not once did she lift her head to 栏目导航 UNIT 1　RELATIONSHIPS 1 语篇理解•要点领悟 栏目导航 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 updates social networking emails text messages dominate depressed alone appointments invitations updates 栏目导航 UNIT 1　RELATIONSHIPS 1 核心知识•关键能力 栏目导航 栏目导航 UNIT 1　RELATIONSHIPS 1     栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 association (that are) associated with smoking in association with a couple of passionate companies associate the Great Wall with China 栏目导航 UNIT 1　RELATIONSHIPS 1     栏目导航 UNIT 1　RELATIONSHIPS 1 in reality accepting reality becomes a reality 栏目导航 UNIT 1　RELATIONSHIPS 1     栏目导航 UNIT 1　RELATIONSHIPS 1 chasing after too few students give up the chase in chase of the championship 栏目导航 UNIT 1　RELATIONSHIPS 1     栏目导航 UNIT 1　RELATIONSHIPS 1 delayed buying a house without delay 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1     栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 to talk complaining it really hard to get along well with her 栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1     栏目导航 UNIT 1　RELATIONSHIPS 1 栏目导航 UNIT 1　RELATIONSHIPS 1 does he go out for dinner shall I forgive him Little does he realize 栏目导航 UNIT 1　RELATIONSHIPS 1 随堂演练•巩固提升 栏目导航 栏目导航 UNIT 1　RELATIONSHIPS 1 one of the benefits of the Internet teach people how to use the computer download software，documents and images stay safe online turn off social media cause a lack of sleep harm your health use the Internet responsibly 栏目导航 UNIT 1　RELATIONSHIPS 1 laptop flow reserved Little did I know find it hard 栏目导航 UNIT 1　RELATIONSHIPS 1 课时作业•知能达标 栏目导航 课时作业•知能达标 栏目导航 UNIT 1　RELATIONSHIPS 1 谢谢观看 栏目导航 UNIT 1　RELATIONSHIPS 1 SO CLOSE，YET SO FAR Mark never stops socialising with① his friends online.But he's also never felt more alone.[“否定词＋比较级”结构表示最高级含义] Where am I? What am I doing? If you're one of my 500 friends online, you'll always be the first to know.My phone and laptop are never out of touching distance②，so I'm constantly③ posting updates on social media④—whether I'm having a coffee, on my way to school，watching TV...[whether引导的让步状语从句] even when I'm in the shower.As soon as I open my eyes in the morning, I check through⑤ all my social networking apps, read my emails and answer text messages.I do the same thing all over again while I'm having breakfast. I live in a university dorm⑥ with a couple of great roommates.I have a never-ending flow of⑦ messages and updates from all the people I associate with⑧ online.Yet the truth of the matter is: I feel lonely. I'm barely⑨ the only person who feels this way.According to research, over two-thirds of young people find it easier to make friends online than it is “in real life”．[“find＋it＋adj.＋to do”结构]I'm way⑩ beyond a shy or reserved⑪ person, but I'm wired up⑫every day, like most of my friends.On the surface⑬， I have an active social life.I attend parties and play sports but I'm always distracted⑭.They say that phones bring people closer together but in reality⑮，my mind is always a million miles away.I obsess over⑯ exactly how many followers I have on my account, but I can't remember the birthdays of some of my oldest mates⑰. Social networking dominates⑱ my life in so many ways.Sometimes I set deadlines⑲for myself: I will start doing my homework at 8 pm, and aim to finish in two hours.At 7.50 pm, I'm still scrolling through⑳my friends' silly posts and photos.Before I know it，[转眼之间，一下子] it's 9.30 pm and I still haven't moved an inch from the sofa.I download song after song, video after video, but I'm not really paying attention.The stimulation㉑ is in chasing after㉒ the next song rather than truly enjoying it.My friends try to drag me away from my phone, but as soon as I'm alone again，I'm desperate to㉓ get back to the online world and the intense㉔ activity that it provides. I constantly feel depressed㉕， dissatisfied and alone.Since I spend so much time socialising online，[since引导的原因状语从句]I keep delaying㉖ things that[that引导定语从句] are important in my real life：homework, tasks, connecting with㉗ my friends and family members in a meaningful way．[解释说明things的具体内容]It's funny that my friends and I chatter away㉘ online so much, but we end up having nothing to say when we meet. A few days ago, I went out for a dinner get-together㉙ with some friends.My best friend left the table for 30 minutes because he had to take a call.Some spent the dinner bending㉚ over their phones，texting friends online but ignoring the ones [并列的v.-ing短语作状语]who sat right in front of them.And the extraordinary㉛ thing is nobody thought this was rude㉜；it's just how life is nowadays.On a family holiday last summer, my sister spent all her time complaining㉝ that she needed to charge her phone.When it was charged, she just spent hours reading about her favourite popstar; not once did she lift her head to enjoy the view outside her window.[否定词not位于句首引起的部分倒装] What is really worrying[what引导的主语从句] is that no one I know, including myself, could go cold turkey㉞．[that引导的表语从句]I can't even imagine going without social networking for a week—think of all the important appointments㉟，invitations and news updates you would miss! Alcoholics㊱ who want to quit drinking can avoid booze㊲， but how do we give up our phones? After all, I need it for my studies because my teachers and classmates need to contact me at any time. So，that's the problem with social networking.We're hard-wired㊳ in, but we're more disconnected㊴ than ever. ①socialise with...与……交往 socialise/'səʊʃəlaɪz/vi.交友；交往，交际 ②touching distance触手可及的距离 ③constantly/'kɒnstəntli/adv.持续不断地，始终，一直 ④post updates on social media在社交媒体上发布最新信息 update n.[C]最新消息vt.更新；向……提供最新信息 ⑤check through仔细检查，核对，核查 ⑥dorm/dɔːm/n.[C]寝室，学生宿舍 ⑦a never-ending flow of...源源不断的…… never-ending adj.永无止境的，没完没了的 flow/fləʊ/n.[C](商品、人或信息的)流动 vi. 流，流动 ⑧associate with...与某人交往 associate/ə'səʊʃieɪt/vi.交往vt.联系，与某人交往 ⑨barely/'beəli/adv.几乎不，几乎没有；仅仅，刚刚 They barely talked to each other.他们彼此几乎没有交谈。 ⑩way在此为副词，表示“很远，大量”。 The price is way above what we can afford. 这价格大大超过了我们的支付能力。 ⑪reserved/rɪ'zɜːvd/adj.含蓄的;内敛的;内向的，寡言少语的，矜持的 ⑫wire sb up(to sth)将某人连接到(某设备) wired /waɪəd/adj.联网的 ⑬on the surface表面上，从外表看，乍一看 ⑭distracted/dɪ'stræktɪd/adj.注意力分散的，心神不定的，精神无法集中的 [词链]distract(vt.使分心)—distracted(adj.)—distracting(adj.使人分心的)—distraction(n.分散注意力的事) ⑮in reality事实上，实际上 相当于in fact，as a matter of fact，actually。 reality/ri'æləti/n.[U]现实，实际情况；[C]事实，实际经历；真实 ⑯obsess over 对……过分担心 obsess/əb'ses/vi.挂牵，念念不忘；vt.使痴迷，使迷恋 ⑰mate/meɪt/n.[C]朋友，伙伴 ⑱dominate/'dɒməneɪt/vt.&vi.主宰，控制，支配，影响 domination/ˌdɒmɪ'neɪʃən/n.[U]支配，统治 ⑲deadline/'dedlaɪn/n.[C]截止日期，最后期限 set deadlines设定截止期限 ⑳scroll through从头到尾滚动 scroll/skrəʊl/vi.(将计算机屏幕上的信息)上下滚动，滚屏(以便阅读) ㉑stimulation/ˌstɪmjə'leɪʃn/n.[U]刺激，激励 stimulate/'stɪmjuleɪt/vt.促进，激发；刺激，使兴奋 ㉒chase after追逐 ㉓be desperate to do sth极想做某事 desperate/'despərət/adj.拼命的；绝望的 ㉔intense/ɪn'tens/adj.(活动)紧张的，激烈的；剧烈的 ㉕depressed/dɪ'prest/adj.抑郁的，沮丧的，忧愁的 [词链]depress(vt.使抑郁，使沮丧)—depressed(adj.)—depressing(adj.令人沮丧的)—depression(n.抑郁，沮丧) ㉖delay/dɪ'leɪ/vt.&vi.延迟，推迟，延期n.[C，U]耽搁，延误 ㉗connect with sb与某人建立关系/沟通 ㉘chatter away喋喋不休 chatter/'tʃætə(r)/vi.唠叨，喋喋不休 ㉙get-together n.[C]聚会，联欢会 ㉚bend/bend/vt.&vi.(bent，bent)俯身，(使)弯腰 ㉛extraordinary/ɪk'strɔːdənəri/adj.令人惊奇的，异乎寻常的，奇怪的；不一般的，非凡的 ㉜rude/ruːd/adj.粗鲁的，无礼的 ㉝complain/kəm'pleɪn/vi.&vt.抱怨，埋怨；不满，发牢骚 ㉞go cold turkey(俚语)放弃做某件事，戒掉坏习惯 ㉟appointment/ə'pɔɪntmənt/n.[C]约会，预约，约定 appoint/ə'pɔɪnt/vt.安排，确定(时间、地点)；任命，委任 ㊱alcoholic/ˌælkə'hɒlɪk/n.[C]酗酒者，嗜酒成瘾者 adj.(含)酒精的 ㊲booze/buːz/n.[U]酒精饮料，酒vi.喝酒，(尤指)狂饮 ㊳hard-wired adj.硬件控制的，硬连线的；天生的 ㊴disconnected/ˌdɪskə'nektɪd/adj.分离的，断开的，无关联的 [词链]connect(vt.&vi.连接)→disconnect(vt.使脱离) →disconnected(adj.) 如此接近，却又如此遥远 马克从未间断与朋友们的网上交际。但他却也从未感到如此孤独。 我在哪里？我在做什么？如果你是我的500个网友之一，你总会第一个知道。我的手机和笔记本电脑一直在触手可及的地方，所以我(可以)不断地在社交媒体上发布最新信息——无论是在喝咖啡，上学的路上，看电视……甚至在洗澡的时候。早上一睁开眼，我就会查看所有社交网络应用程序，阅读电子邮件并回复短信。我在吃早餐的时候会再做一遍这些事情。 我和几个很好的室友一起住在大学宿舍里。我不停地收到交往的网友发来的信息和最新消息。然而事实却是：我感到孤独。 我不是唯一一个有这种感觉的人。研究显示，超过三分之二的年轻人认为在网上交朋友比“在现实生活中”交朋友更容易。我远非一个害羞或内向的人，但是我每天都在网上，像我大多数的朋友一样。从表面上看，我的社交生活很丰富。我参加派对和体育运动，但总是不能专心。他们说手机让人们联系更加紧密，但实际上，我的思绪总是飞到十万八千里之外。我惦记自己的账户有多少人关注，但却记不住一些老朋友的生日。 社交网络在很多方面都控制着我的生活。有时我会为自己设定截止时间：我要在晚上8点开始做我的家庭作业，并且要在两小时内完成。晚上7：50，我还在浏览朋友们发的无聊帖子和照片。等我意识到的时候已经是晚上9：30了，我还在沙发上坐着一动没动。我下载一首又一首歌曲，一个又一个视频，但其实并不在意。我的兴奋点是寻找下一首歌而不是真正欣赏音乐。朋友们试图让我远离手机，但是我一旦独自一人，就会不顾一切地回到网络世界和网上紧张的活动中。 我经常感到沮丧、不满和孤独。我因为花了很多时间上网社交，所以一直在推迟现实生活中重要的事情：家庭作业、任务、以有意义的方式和家人、朋友联系。滑稽的是，我和朋友们经常在网上聊得热火朝天，但结果见面时却无话可说。 几天前，我和一些朋友出去吃晚饭。我最好的朋友因为不得不接听电话而离席30分钟。有些人整个晚餐都在埋头看手机，给网上的朋友发短信，却忽略了就坐在他们面前的人。不可思议的是没有人认为这不礼貌。这就是现在的生活。去年夏天一次全家度假中，我妹妹一直抱怨说她的手机需要充电。手机充上电后，她又花了数小时浏览她最喜欢的流行音乐歌星的消息，一次也没有抬起头欣赏窗外的景色。 真正令人担心的是，我认识的每个人，包括我自己，都不能戒掉互联网。我甚至无法想象一周没有社交网络的生活——想想你会错过的所有重要约会、邀请和新闻更新！想要戒酒的酗酒者可以避免饮酒，但我们如何杜绝手机呢？毕竟，我需要用它来学习，因为我的老师和同班同学需要随时与我联系。 所以，这就是社交网络的问题。我们被网络连接，但却比以往更加疏远。 Ⅰ.重点单词 基础单词 1．____ n.流动vi.流，流动 2．_________ adj.含蓄的；内敛的 3．________ n.截止日期，最后期限 4．_____ vi.&vt.努力赢得n.追逐，追赶 5．_________ adj.拼命的；绝望的 6．_____ vi.&vt.推迟，延期 7．____ vi.&vt.弯腰；俯身 拓展单词 8．rude adj.无礼的→ ______ adv.无礼地→________ n.粗野，无礼；粗陋 9．complain vi.& vt.抱怨；不满；发牢骚→_________ n.抱怨；不满 10．____ adj.裸露的，光秃的；荒芜的；没有保护的→barely adv.几乎不 11．constant adj.不变的，连续发生的→__________ adv.持续不断地 12．________ v.转移，分散(注意力)→distracted adj.心神不定的，精神无法集中的 13．reality n.现实；真实→____ adj.实际的，真实的→______ adv.实际上，事实上 14．_________ v.促进；激发；激励；刺激→stimulation n.刺激 15．depressed adj.沮丧的，忧愁的→_______ v.压抑；使沮丧→__________ adj.令人沮丧的→__________ n.沮丧，忧愁；抑郁症 16．appointment n.约定；约会→_______ v.约定；任命 Ⅱ.重点短语 1．______ networking社交网络 2．associate ____与某人交往 3．______ over对……过分担心 4．_______ away喋喋不休 5．end __结束；告终 6．give __ 放弃，戒掉 7．after ___毕竟；终究 Ⅲ.句式语境 1．find＋it＋宾语补足语(形容词)＋动词不定式 I have____________________ two foreign languages at the same time. 我发现同时学习两门外语是非常困难的。 2．否定词位于句首，句子要部分倒装 _________________ such a performance. 我从未看过这样的表演。 3．not置于句首的部分倒装句 ...____________________________ enjoy the view outside her window. ……她一次也没有抬起她的头欣赏窗外的景色。 Ⅰ.Read the text and choose the best answers. 1．What is Mark busy doing with his phone and laptop? A．Posting updates. B．Watching TV. C．Reading his emails and answering text messages. D．Spending most time on social media. 2．Why does Mark feel lonely? A．Spending most time on social media，he can't focus on real life. B．He hasn't made many friends on social media. C．In real life，he has no good friends. D．He doesn't attend parties or play sports. 3．What's the main idea of paragraph 4? A．Mark has no time to do his homework. B．Mark's friends try to drag him away from his phone. C．Mark's life is in the control of social networking in so many ways. D．Mark chases after the next song rather than truly enjoying it. 4．What's Mark's attitude to his problem? A．Indifferent. B．Confused. C．Satisfied. D．Doubtful. 答案　1—4　DACB Ⅱ.Understand the structure of the text. Mark's routine activities online post 1._______ on social media；check through all his 2._________________ apps；read his 3.______；answer 4._____________ What has social networking done to Mark 5.________ his life；feel 6._________，dissatisfied and 7._____ Reasons why Mark can't drop social networking important 8.____________，9.___________ and news 10._______；studies [重点词汇] 1．associate vi.交往，混在一起vt.联想；与某人交往 associate with sb　与某人交往 associate A with B　把A和B联系/联想在一起 associated adj.　有联系的，相关的 be associated with　与……有关 association n.　联想，联系，联合 in association with...　与……联合 It is very easy to memorize difficult words or sentences if you associate them with interesting things. 如果你把难词难句与有趣的事情联系起来，记住它们就轻而易举了。 [即学活用] 单句语法填空/完成句子 ①They remained a close ___________(associate) with a college in the US. ②You should learn the risks __________________________________ (与抽烟有关的) and drinking. ③We work ________________________________________________ (跟几家热情的公司联合) to raise money for victims in the earthquake. ④People often ___________________________________(将中国和长城联想到一起) naturally. 2．in reality 事实上，实际上 同义短语及词汇：in fact；as a matter of fact；in truth；actually 搭配短语： become a reality　成为现实 face/accept reality　面对/接受现实 bring sb back to reality　将某人带回现实 Outwardly，she seemed very confident but in reality，she felt extremely nervous.表面上看，她似乎很自信，但实际上她感到非常紧张。 [即学活用] 完成句子(用与reality有关短语) ①People should be treated equally according to the law，but __________(事实上), there is great room for improvement. ②People often have difficulty _________________(接受现实) when further scientific discovery challenges what they have previously thought to be settled(既定的) facts. ③We still have a long way to go before this science-fiction dream__________________(成为现实). 3．chase vi.&vt.努力赢得n.追逐，追赶 chase (after) sb/sth　追逐某人/某物 in chase of...　追赶，追逐 Many young people，most of whom were well-educated，headed for remote regions to chase their dreams. 许多年轻人，其中大多数受过良好教育，前往偏远地区追逐他们的梦想。 [即学活用] 完成句子 ①There are too many schools ______________________________ (争抢太少的学生). ②He was reluctant (不情愿的) to _________________(放弃追赶). ③They took an invincible lead(遥遥领先) ______________________ (角逐冠军). 4．delay vi.&vt.推迟，延期 delay (doing) sth　推迟某事 without delay　立刻 Considering his illness，she delayed telling him the truth. 考虑到他的疾病，她没有马上告诉他真相。 (2024·新课标Ⅱ卷)Due to a big storm，my flight had been delayed by an hour and a half. 由于一场大风暴，我的航班延误了一个半小时。 [即学活用] 完成句子 ①They ______________________ (推迟买房子) to establish their careers. ②Report it to the police _____________ (立刻). [重点句型] 1．(教材P15)According to research，over two-thirds of young people find it easier to make friends online than it is “in real life”． 研究显示，超过三分之二的年轻人发现在网上交朋友比在“现实生活中”容易。 当不定式(短语)、动词-ing形式或从句在句子中作宾语时，为保持平衡，避免句式结构的混乱，常用it作形式宾语，而将真正的宾语放在句尾。构成句式S＋V＋it＋n./adj.＋(for sb)to do/doing/从句。it作形式宾语，通常和下列动词连用：consider，think，make，find，believe，feel等。其中句中宾补为no use，no good，no fun，no pleasure，a waste of time等时，it常代替doing。 [句式分析] 本句构成为主语＋形式宾语it＋补足语＋真正的宾语to do sth。 I feel it a great honor to be invited to deliver a speech here. 我感到很荣幸被邀请在这里发表演讲。 He thinks it important that we try to do some housework after school. 他认为我们放学后试着做一些家务是重要的。 We found it no use doing like that. 我们认为那样做没有用。 [即学活用] 单句语法填空/完成句子 ①Our teacher makes it a rule never _______(talk) in class. ②We consider it no use ___________(complain) to others. ③I find _________________________________________(和她相处真的很难). 2．(教材P15)...not once did she lift her head to enjoy the view outside her window. ……，她一次也没有抬起头来欣赏窗外的景色。 在英语句子中，当否定词、否定副词开头并加状语或一些介词＋no＋名词的结构位于句首时，这个句子要使用部分倒装结构，即只把谓语的一部分(如助动词、情态动词等)放到主语前，如果句中的谓语没有助动词或情态动词，则需添加助动词do，does或did，并将其置于主语之前。如no，not，nowhere，never，neither，nor，seldom，little，hardly，barely，rarely，scarcely，no sooner，not until，not only，at no time，in no way，scarcely...when，by no means，for no reason，in no case，in/under no circumstances，in no sense，on no account，on no consideration，at no point等。 [句式分析] not once为否定词，置于句首。did she lift her head为部分倒装。 In no case/On no account/By no means/In no way will I give in to difficulty；I just want to solve it in another manner. 我绝不会向困难屈服，我只是想换种方法解决问题。 Not until they get ill seriously do many people realize the importance of health. 直到生了重病，许多人才意识到健康的重要性。 [即学活用] 完成句子 ①Seldom _________________________(他很少出去吃饭). ②Never ___________________(我永远不会宽恕他). ③______________________(他没有意识到) how important this meeting is! Ⅰ.教材语块必备 1．___________________________________ 互联网的好处之一 2．____________________________________ 教人们怎样使用电脑 3．____________________________________ 下载软件、文档及图片 4．________________ 保持网上安全 5．_____________________ 关闭社交媒体 6．______________________ 引起睡眠不足 7．________________ 危害你的健康 8．____________________________ 负责任地使用互联网 Ⅱ.单词拼写/完成句子 1．I have just bought an expensive ______(笔记本电脑). 2．They have built two more roads to improve the traffic_____(流动). 3．The new leader of our department is a_________(内敛的) man. 4．_________________ (我一点也不知道) that she had already left. 5．You may ____________ (觉得很难) to accept the fact. $