人教版高中英语必修2Unit3-Computers-课件.ppt--（课件中不含音视频）

1、Unit3 ComputersUnit3 Computers人教必修二人教必修二晨背佳作 积累素材 话题词汇1.Internet n.网络网络2.screen n.屏幕屏幕3.electronic adj.电子的电子的4.laptop n.手提电脑手提电脑5.software n.软件软件6.data n.数据数据7.update n.&vt.更新；更新；(使使)现代的现代的8.download vt.下载下载9.virus n.病毒病毒puter games电脑游戏电脑游戏11.surf the Internet上网上网12.shop on line 网上购物网上购物话题佳作假如你是李华，你

2、的笔友假如你是李华，你的笔友Jim最近沉溺于玩电脑游戏，为此你很最近沉溺于玩电脑游戏，为此你很担心。请根据下表提示给担心。请根据下表提示给Jim写一封信，谈谈你的看法及建议。写一封信，谈谈你的看法及建议。Jim过去过去 功课好，积极参加学校的各项活动。功课好，积极参加学校的各项活动。Jim现在现在 对学习没有兴趣，上课不专心，不按时交作业。对学习没有兴趣，上课不专心，不按时交作业。你的看法你的看法也许玩电脑游戏能使你放松，但沉溺其中会占用学习也许玩电脑游戏能使你放松，但沉溺其中会占用学习时间时间你的建议你的建议(至少发挥两点至少发挥两点)佳作欣赏Dear Jim，I really feel w

3、orried about you.You used to do well in your lessons and take an active part in the activities，but now you take no interest in your schoolwork and dont listen to teachers carefully.Also，you are so crazy about computer games that you cant hand in your homework on time.Perhaps playing computer games c

4、an make you feel relaxed，but if you spend too much time on it，you will have less time to study.I hope you should achieve a balance between your schoolwork and your hobbies.Why not join in some outdoor activities when you feel bored?Yours，Li Hua名师点睛本文首先对本文首先对Jim的过去和现在进行了对比，然后交代了沉溺于的过去和现在进行了对比，然后交代了沉溺

5、于电脑游戏的危害，最后提出自己的建议：在学习和爱好之间要电脑游戏的危害，最后提出自己的建议：在学习和爱好之间要搞好平衡、多参加户外活动。总之，文章脉络清晰，叙述严谨。搞好平衡、多参加户外活动。总之，文章脉络清晰，叙述严谨。本文中使用了本文中使用了take an active part in，take no interest in，be crazy about，on time等亮点词汇及等亮点词汇及so.that.引导的结果状语从引导的结果状语从句、动名词短语作主语、条件状语从句、宾语从句、句、动名词短语作主语、条件状语从句、宾语从句、why not动词原形、时间状语从句等高级句式。动词原形、时

6、间状语从句等高级句式。基础排查点拨要点语篇训练提升能力内容索引教材升华综合运用基础排查点拨要点A.写作必记单词写作必记单词1.solve vt.解决；解答解决；解答 (1)solution n.解决；解答解决；解答 (2)There are still many problems (solve)before we are ready for a long stay on the Moon.(2014北京北京)2.personal adj.私人的；个人的；亲自的私人的；个人的；亲自的 (1)n.性格；人格性格；人格 (2)person亲自；本人亲自；本人重点单词重点单词1to be solved

7、personalityin3.total adj.总的；整个的；总的；整个的；n.总数；合计总数；合计 (1)adv.完全地；整个地完全地；整个地 (2)total总计总计a total of与与the total of不同，前者意为不同，前者意为“总数为总数为”，若，若用作主语，谓语动词通常用复数；后者意为用作主语，谓语动词通常用复数；后者意为“的总数的总数”，若用作主语，谓语动词通常用单数。若用作主语，谓语动词通常用单数。用 法 点用 法 点拨拨totallyin4.adj.可移动的；机动的可移动的；机动的5.anyhow adv.(也作也作anyway)无论如何；即使如此无论如何；即使如

8、此 (1)somehow(someway)adv.somewhat adv.(2)Anyway，were here now，so lets get down to some serious work.不管怎么样，我们现在在这里了，那么让我们开始认真工不管怎么样，我们现在在这里了，那么让我们开始认真工作吧。作吧。(2014江西江西)mobile以某种方式；不知怎么地以某种方式；不知怎么地稍微；有点稍微；有点6.n.目标；目的；球门；目标；目的；球门；(进球进球)得分得分7.signal vi.&vt.发信号；发信号；n.信号信号 (1)The guard seems to be signalin

9、g us with his arm.(填介填介词词)(2)The policeman signaled the driver to cross the road.警察示意这位司机过马路。警察示意这位司机过马路。8.n.类型；类型；vt.&vi.打字打字9.arise vi.出现；发生；站起出现；发生；站起 a rise from/out of.由由而引起；由而引起；由而产生而产生goaltypetoarise作作“呈现；出现；发生呈现；出现；发生”之意时，主语多为抽象名词，之意时，主语多为抽象名词，如：如：argument，problem，quarrel，question，movement等，

10、等，多指不好的事情发生。多指不好的事情发生。用 法 点用 法 点拨拨B.阅读识记单词阅读识记单词10.calculate vt._ n.计算器计算器11.universal adj._ n.宇宙宇宙12.simplify vt._ simple adj._ simply adv.计算计算calculator普遍的；通用的；宇宙的普遍的；通用的；宇宙的universe简化简化简单的简单的简直；只；不过简直；只；不过13.operator n.(1)v.操作；手术操作；手术 n.操作；经营；手术；行动操作；经营；手术；行动 (2)operate 对对动手术动手术 come/go into oper

11、ation实行；生效实行；生效 bring/put into operation实施；使生效实施；使生效14.revolution n._15.intelligence n._ intelligent adj._(电脑电脑)操作员；接线员操作员；接线员operateoperationon革命革命智力；聪明；智能智力；聪明；智能智能的；聪明的智能的；聪明的16.reality n.reality实际上；事实上实际上；事实上17.application n._ (1)apply v._ applicant n._ (2)apply oneself 专心于专心于18.explore vt.&vi._

12、 n.探险家；勘探者探险家；勘探者 n.探索探索真实；事实；现实真实；事实；现实in应用；用途；申请应用；用途；申请运用；涉及；申请运用；涉及；申请申请人；求职人申请人；求职人to探索；探测；探究探索；探测；探究explorerexploration19.happiness n._20.download vt._ v.上传上传21.coach n._22.electronic adj.electricity n.幸福；快乐幸福；快乐下载下载upload教练教练电子的电子的电；电学电；电学23.appearance n._ (1)v.出现出现 (2)appearance 外表上；看起来外表上；看

13、起来 ones appearance 登台；露面登台；露面24.character n._外观；外貌；出现外观；外貌；出现appearinmake性格；特点性格；特点1.从从时起时起2.结果结果 He was careless.As a result，he died.(同义句转换同义句转换)He died his carelessness.His carelessness his death.His death his carelessness.高频短语高频短语2from.onas a resultas a result ofresulted inresulted from3.独立地独立地4.

14、in a way在某种程度上在某种程度上 (1)in no way决不决不(置于句首时句子用倒装置于句首时句子用倒装)the way挡路挡路 the way在路上在路上 way of经由；途经经由；途经 (2)You can solve this problem only in this way.(改为倒装句改为倒装句)inonbyOnly in this way can you solve this problem.by oneself 5.make up组成；编造；弥补；占；化妆；和好组成；编造；弥补；占；化妆；和好写出下列句子中写出下列句子中make up的汉语意思的汉语意思 (1)Si

15、nce the poorest are least likely to make up for their losses from disasters linked to El Ni o，reducing their losses needs to be the priority.(2016江苏江苏)(2)In some languages,100 words make up half of all words used in daily conversations.补偿补偿占占(3)The quarrel was only about a trivial matter，but it was

16、years before they made it up.(4)It may take quite a long time before an actor is properly made up for a part.make up作作“组成；构成组成；构成”解时，其被动形式为解时，其被动形式为be made up of，而不是，而不是be made up by。用 法 点用 法 点拨拨和好和好化妆化妆6.毕竟；终究毕竟；终究7.在在的帮助下的帮助下 the foot of在在脚下脚下 the direction/leadership/command/protection of 在在指导指导/

17、领导领导/指挥指挥/保护下保护下8.deal with处理；安排；对付处理；安排；对付写出下列句子中写出下列句子中deal with的熟词生义的熟词生义 (1)For years I dealt with my travel agent only by phone.(2016全国全国)(2)This book deals with educational problems.after allwith the help ofatunder和和打交道打交道论述论述表示表示“处理处理”、“对付对付”时，时，deal with习惯上与习惯上与how搭配，搭配，而而do with习惯上与习惯上与what

18、搭配。搭配。用 法 点用 法 点拨拨9.看守；监视看守；监视 watch 当心；小心当心；小心 keep a watch 监视；密切注视监视；密切注视watch overout(for)on1.I developed very slowly and it took nearly two hundred years as an analytical machine by Charles Babbage.我发育缓慢，差不多到了两百年之后，查尔斯我发育缓慢，差不多到了两百年之后，查尔斯巴比奇才把我巴比奇才把我制成了一制成了一 台分析机。台分析机。经典句式经典句式3before Iwas built2

19、.，I was made smaller.随着时间的流逝，我被做得更小了。随着时间的流逝，我被做得更小了。As time went on，our knowledge broadened.，our knowledge broadened.(改为含有改为含有with复合结构的简单句复合结构的简单句)，our knowledge broadened.(用独立主格结用独立主格结构改写构改写)As time went byWith time going onTime going on3.And my memory became even I couldnt believe it!我的存储量变得如此之大，

20、连我自己都不能相信！我的存储量变得如此之大，连我自己都不能相信！(1)It was such a cold day that there was nobody in the street.(用用so.that.改写改写)It was there was nobody in the street.(2)It will be so low in price that no man making good money will be unable to own one.(用用so.that.改为倒装句改为倒装句)in price that no man making good money will

21、be unable to own one.(3)He is such a clever boy that we all like him.(用用as引导的定语从句改写引导的定语从句改写)He is so clever a boy.so large thatso cold a day thatSo low will it beas we all like4.After all，with the help of my electronic brain _ ，my intelligence is 不管怎样，在我过目不忘的电子脑的帮助下，运用智能就是我不管怎样，在我过目不忘的电子脑的帮助下，运用智能就

22、是我的一切！的一切！which never forgetsanythingusing what Im all about!教材升华综合运用.教材与语法填空教材与语法填空1.history of computer began in France in 1642.It was first built only as a 2.(calculate)machine，and later as an analytical machine that could“think”3.(logic)and produce an answer quicker 4.any person.Still later，the“

23、universal machine”was built to solve mathematical problems,5.made the computer huge！As time 6.(go)by,the computer was made smaller，quicker and 7._(clever).ThecalculatinglogicallythanwhichwentclevererTill now，computers have been connected by network and 8._ (bring)into common peoples homes to deal wi

24、th information and help with communication 9.people around the world.Since 10.birth，the computer has always been designed to serve the human race.broughtbetweenits.教材与短文改错教材与短文改错Im part in an android football team.On the football team Im a striker so I have to able to run very fast.My computer chips

25、 help me to move and thinks like a human.My first football competition is in Japan several years ago.In the way our programmer is like our coach.ofbethinkwasaShe programs us with all the possibly moves she has seen while she watching human games.I would really like to play against a human team，for I

26、 have been programmed to act just like themselves.After all，with the help of my electronic brain which never forget anything，use my intelligence is what Im all about!themforgetsusingpossibleis 或或while she watching human games.教材与微写作教材与微写作写作素材写作素材(关于机器人关于机器人)1.杰克是一名工程师，想研制自己的杰克是一名工程师，想研制自己的机器人机器人。2.它

27、将具有它将具有人工智能人工智能并有人的并有人的外表外表。3.他不在家时，它能替他他不在家时，它能替他看守看守他的房子。他的房子。4.帮他帮他处理处理他的他的私事私事。5.他希望这会变为他希望这会变为现实现实，在它的帮助下在它的帮助下，生活会变得更便利。，生活会变得更便利。提示：加蓝提示：加蓝部分用本单元词汇表达，并且请使用部分用本单元词汇表达，并且请使用who引导的定引导的定语从句，语从句，not only.but also.等连接词。等连接词。连句成篇连句成篇(将以上句子连成一篇将以上句子连成一篇50词左右的英语短文词左右的英语短文)Jack，who is an engineer，inten

28、ds to develop his own android with artificial intelligence and human appearance.It can not only watch over his house for him in case he is out but also deal with his personal affairs.He hopes it will become a reality and with its help，life will be much more convenient.语篇训练提升能力.阅读理解.七选五.完形填空.阅读理解(201

29、6天津红桥区联考天津红桥区联考)Kids love the allknowing Google.Your kids likely use Google to help them find everything from information for homework assignments，to funny cat videos，and everything in between.Sometimes kids can take a“wrong turn”on Google and end up in a dark part of the Internet where they shouldn

30、t be.Thankfully，Google has some parental control features that parents can implement to at least help reduce the volume(量量)of crap(废物废物)that ends up in search results，which can enable you to help keep your curious kids from ending up on the wrong side of the tracks.What is Google SafeSearch？Google S

31、afeSearch is one of the primary parental control options offered by Google to help parents police search results.SafeSearch helps to filter explicit(明确的明确的)content out of search results.It is mainly designed to target sexually explicit material(images and videos)and not violent content.How to enable

32、 Google SafeSearch？1.From the“Search Settings”preferences page，place a check in the box with the label“Filter explicit results”.2.To lock this setting so that your child cant change it，click the“Lock SafeSearch”link.If you are not already logged into your Google account，you will need to do so in ord

33、er to lock SafeSearch to the“on”position.Enable SafeSearch on mobile devices.In addition to your computer，you will probably also want to enable SafeSearch on any mobile device that your child uses regularly.For instructions on how to enable SafeSearch on a variety of mobile devices，check out Googles

34、 SafeSearch Mobile support page.As we all know，kids are going to be kids and try to test their boundaries.We put up one roadblock and they go around it.Its a constant cat and mouse game and there will always be some Internet door that we as parents forget to lock，and that will be the one that the ki

35、ds get through，but we do the best we can.1.Which of the following are kids NOT likely to use Google to do?A.To find information for homework assignments.B.To find everything except information and funny cat videos.C.To find funny cat videos on the Internet.D.To find everything between information an

36、d funny cat videos.细节理解题。根据第一段第二句细节理解题。根据第一段第二句“Your kids likely use Google to help them find everything from information for homework assignments，to funny cat videos，and everything in between.”可知，孩子很喜欢使用可知，孩子很喜欢使用Google搜索各种信息，包括滑稽的猫的搜索各种信息，包括滑稽的猫的视频。故视频。故B项正确。项正确。答案 解析12342.What does the underlined

37、“options”in Paragraph 2 mean?A.Judgments.B.Uses.C.Functions.D.Choices.词义猜测题。根据该划线词所在句词义猜测题。根据该划线词所在句“Google SafeSearch is one of the primary parental control options offered by Google to help parents police search results.”可知，实际上有很多类似的可知，实际上有很多类似的搜索控制的程序，搜索控制的程序，Google SafeSearch只是父母的一种选择而已。只是父母的一种选

38、择而已。option与与choice同义。故同义。故D项正确。项正确。答案 解析12343.Whats the first thing youd do before setting Google SafeSearch?A.Sign up and log into your Google account.B.Find the“Search Settings”preferences page.C.Find the label“Filter explicit results”.D.Click the“Lock SafeSearch”link.推理判断题。根据第三段最后一句推理判断题。根据第三段最后一

39、句“If you are not already logged into your Google account，you will need to do so in order to lock SafeSearch to the on position.”可知，如果可知，如果你没有登录你没有登录Google的账户，那么你就要先注册一个账号。故的账户，那么你就要先注册一个账号。故A项正确。项正确。答案 解析12344.How do you enable SafeSearch on mobile devices?A.Read the instructions of the related mobi

40、le devices directly.B.Look for some Internet door to be sure we parents did not forget to lock it.C.Check out Googles SafeSearch Mobile support page for instructions.D.Check in the box with the label any mobile devices.答案 解析细节理解题。根据最后一段第三句细节理解题。根据最后一段第三句“For instructions on how to enable SafeSearch

41、on a variety of mobile devices，check out Googles SafeSearch Mobile support page.”可知，要想在移动设备上使用可知，要想在移动设备上使用SafeSearch，就要登录相关的网页查找使用说明。故，就要登录相关的网页查找使用说明。故C项正确。项正确。1234.七选五(2016四川广元中学段考四川广元中学段考)We are all called upon to make a speech at some point in life，but most of us dont do a very good job.1 答案 解析

42、C This article gives some advice on how to give a good speech.开头说我们有时需要做演讲，但多数人做不好。开头说我们有时需要做演讲，但多数人做不好。C项承接上句，引出下文，项承接上句，引出下文，故选故选C。So，you have to give a speech and you are terrified.You get nervous，you forget what you want to say，you stumble over words，you talk too long，and you bore your audience.

43、Later you think，“Thank Goodness，its over.Im just not good at public speaking.I hope I never have to do that again.”Cheer up！2 Here are some simple steps to take the pain out of speech making.Ask yourself the purpose of your speech.What is the occasion?Why are you speaking?Then，gather as many facts a

44、s you can on your subject.Spend plenty of your time doing your research.Then spend plenty of your time organizing your materials so t h a t y o u r s p e e c h i s c l e a r a n d e a s y t o f o l l o w.答案 解析A It doesnt have to be that bad.上段讲演讲时的具体表现，此处讲振奋起来，下面的方法能帮到你。上段讲演讲时的具体表现，此处讲振奋起来，下面的方法能帮到你

45、。A项项连接这两个句子承上启下，故选连接这两个句子承上启下，故选A。Use as many examples as possible，and use pictures，charts，and graphs if they can help you make your points more clearly.3 Dont talk over their heads，and dont talk down to them.Treat your audience with respect.They will appreciate your thoughtfulness.答案 解析F Never forg

46、et your audience.下句中的下句中的their和和them都指都指your audience，以及根据第三段倒数，以及根据第三段倒数第二句的内容提示可知，此处讲怎样对待你的听众们，故选第二句的内容提示可知，此处讲怎样对待你的听众们，故选F。Just remember:Be prepared.Know your subject，your audience，and the occasion.Be brief.4 And be yourself.Let your personality come through so that you make persontoperson conta

47、ct with your audience.If you follow these simple steps，you will see that you dont have to be afraid of public speaking.D Say what you have to say and then stop.答案 解析上句讲演讲要简洁明了，上句讲演讲要简洁明了，D项：说你必须说的然后停下来。此处项：说你必须说的然后停下来。此处是对上句的进一步说明，故选是对上句的进一步说明，故选D。In fact，you may find the experience so enjoyable tha

48、t you volunteer to make more speeches!Youre not convinced yet？5 A.It doesnt have to be that bad.B.Take several deep breaths before your speech.C.This article gives some advice on how to give a good speech.D.Say what you have to say and then stop.E.Dont say what you arent familiar with.F.Never forget

49、 your audience.G.Give it a try and see what happens.答案 解析G.Give it a try and see what happens.句意为：事实上，你会发现这种经历是如此令人愉快以至于你句意为：事实上，你会发现这种经历是如此令人愉快以至于你会踊跃参加更多的演讲！你是不是还不太确信？试试看会发生会踊跃参加更多的演讲！你是不是还不太确信？试试看会发生什么。什么。G项顺承上句，故选项顺承上句，故选G。.完形填空(2016山东泰安质检山东泰安质检)I was driving home in a rainstorm on a cold March

50、morning in the mountains of my home.Part of me was 1 the rain thinking that it would clean the mud，salt，and dirt that covered my 2 from weeks of Winter driving and 3 me a trip to the car wash.1.A.challenging B.enjoying C.doubting D.describing 答案 解析challenge挑战；挑战；enjoy喜欢；喜欢；doubt怀疑；怀疑；describe描述。描述。由