人教版高中英语必修二Unit3课文知识点详解优质课件.pptx(课件中不含音视频素材)

1、Unit 3 Computers基础落实.高频单词思忆1.The development of the steam engine was a great (科技的)advance.2.I havent (计算)the result of the maths problem.3.Life (完全地)changed when I went to college.4.People will build a large (人造 的)lake in the new park.technologicalcalculatedtotally/completelyartificial5.Before going

2、 to school,all the children are given an (智力)test.6.Difficulties will a as we do the work.7.P ,I prefer to go to Beijing for my holiday.8.Do you know that football c who is standing there?9.“One World,One Dream”fully reflects the essence(实质)and the u values of the Olympic spirit.10.The invention of

3、the television caused a r in our daily life.intelligenceriseersonallyoachniversalevolution.重点短语再现1.从时起2.结果3.如此以致于4.在某种程度上5.在的帮助下6.处理；安排；对付7.看守；监视8.共有；共用9.弥补10.毕竟from.onas a resultso.thatin a waywith the help ofdeal withwatch overin commonmake upafter all.典型句式运用1.I developed very slowly and it took n

4、early two hundred years before I was built as an analytical machine by Charles Babbage.我发 育缓慢，差不多到了两百年之后，查尔斯巴比 奇才把我制成了一台分析机。（1）“It took/was+一段时间+before 从句”是一个固定句型,意为“”。（2）before用于这类句型时的结构还有：It didnt take/was long(或一段时间)before.过了不久（一段时间）就考点提炼过了后才 It will take/be long(或一段时间)before.要过很久（一段时间）才 It wont

5、take/be long(或一段时间)before.不久（一段时间后）就会2.As time went by,I was made smaller.随着时间 的推移，我被制造得越来越小。句中的as是连词，引导 从句，意为“”或“”。表示“随着”时，也可以用with,但with后只 接名词短语。考点提炼时间状语一边一边随着3.And my memory became so large that even I couldnt believe it!我的记忆能力变得如此 巨大，甚至连我自己都不能相信！so+adj./adv.+that.意为 “”，引导结果状语从句。so that引导 从句，相当于i

6、n order that,该从句中常用情态动词may,might,can,could,will,would和should。考点提炼如此以致目的状语4.After all,with the help of my electronic brain which never forgets anything,using my intelligence is what Im all about!不管怎么 样，在我过目不忘的电子脑的帮助下，运用智能就 是我的一切。with the help of my electronic brain which never forgets anything是状语，说明主

7、谓部分的伴随状况。在这个with短语中，包含一个定语从句 ,修饰my electronic brain。with the help of意为“”。考点提炼which never forgetsanything在的帮助下5.Whats more,you can use the Internet to learn English.而且，你还能利用因特网学英语。What is more意为“”，常作 语，相当于besides或 furthermore。考点提炼更重要的是；而且插入导练互动重点单词1.calculate I began as a machine in France in 1642.(回

8、归课本P18)观察思考 Mary always calculates the cost of goods before she buys them.玛丽总是在买东西之前先估算好价钱。calculatingMr.Li calculated that it would take him three hours to get to Shenzhen.李先生估计他要花三个小时才能到达深圳。What I said yesterday was not calculated to hurt you.昨天我说的话不是有意伤害你的。归纳总结calculate 。calculate on/upon指望；打算It

9、is calculated that.据估算be calculated to do打算做；故意做be calculated for适合于v.计算；打算；推测即学即用（1）这些广告旨在吸引年轻的单身消费者。The advertisements attract young single consumers.（2）据估算，去年至少丧失了47 000个工作。at least 47,000 jobs were lost last year.are calculated toIt has been calculated that2.anyhow ,my goal is to provide humans

10、with a life of high quality.(回归课本P18)观察思考 I am not feeling quite well but I will attend the meeting tomorrow anyhow.我觉得不太舒服，但明天的会我无论如何会参加。His books were arranged anyhow on the floor.他的书乱七八糟摊了一地。Anyhow归纳总结anyhow 。(1)“无论如何，不管怎样，反正；尽管如此”，在作此意解时，anyway和anyhow一样，都用作让步状语，一般位于句中（其前常有连词but）或句末。（2）“况且，更何况；再说

11、；至少”，作此意解时，anyway和anyhow一样，都用作句子状语，用来对前边的话作补充，给出一个更加令人信服的理由。这时anyhow常出现在句首或最后的分句之首（位于分句之首时其前常有连词and），而不可出现在句末。（3）“粗心地；随意地”，在作此意解时，只能用anyhow。adv.无论如何；不管怎么说；胡乱地即学即用（1）Excuse me,could you tell me the way to the British Museum?Sorry,Im a stranger here.A.Thanks anyway B.It doesnt matter C.Never mind D.No

12、 problem 解析 A.不管怎样，还是要谢谢你。B.没关系。C.不要紧；不用担心。D.没问题。句意为：打扰了，你能告诉我去大英博物馆的路 吗？抱歉，我在这儿是个陌生人。不 管怎样，还是要谢谢你。A（2）I might fail,but I insist on doing it,I dont mind.A.howeverB.anyhow C.yetD.meanwhileB3.arise Then she prepares reliable moves to use if a new situation .(回归课本P23)观察思考 A new difficulty has arisen.一项

13、新的困难出现了。I arose early in the morning.我早上起得很早。arises归纳总结arise 。(1)作“呈现；出现；发生”之意时，主语多为以下抽象名词：argument/problem/quarrel/question/movement。（2）arise from由而引起，由而产生；从中产生。vi.出现，发生；上升易混辨异arise,arouse,rise,raise原形原形过去式过去式过去分词过去分词 v v.-ing.-ingarise arise vivi.出现；出现；发生；起因于发生；起因于 arosearose arisenarisen arisinga

14、risingarouse arouse vtvt.唤醒，唤醒，激起激起arousedaroused arousedaroused arousingarousingrise rise vivi.升起；起升起；起身；增长；上升身；增长；上升 roserose risenrisen risingrisingraise raise vtvt.举起；唤举起；唤起；提高；饲养起；提高；饲养 raisedraised aisedaised raisingraising即学即用(1)我本来想事情会很容易，但是出现了许多问题。I thought it would be easy,but a lot of pro

15、blems .(2)事故由粗心大意引起。Accidents carelessness.have arisenarise from4.signal For example,I have learned to to my teammates in computer language to give me the ball when I am open and have a good shot for a goal.(回归课本P23)观察思考 Dont fire until I signal.等我发出信号后再开枪。He signalled to the waiter for the bill.他示意

16、服务员结账。A red light is a signal of danger.红灯是危险的信号标志。signal归纳总结signal 。易混辨异signal,sign,mark,symbol(1)signal常指约定俗成、用于传达某些信息的信号，也指灯光、声音或信号标志。（2）sign用法最广，可以指符号，也可以指情绪、性格的直观显示，还可以指具体的用于识别或指示的标志，如指示牌、卡片等，借喻作“征兆；迹象”讲。The referee gave the sign to start the game.裁判员给出开始比赛的信息。vi.&vt.发信号；n.信号（3）mark含义广泛，指事物留下的深

17、刻印记，比sign更侧重于区别性或指示性的标志。（4）symbol指被人们选出的物体或图案，用来代表另一事物，作为该事物的标记或象征。The dove is the symbol of peace.鸽子是和平的象征。即学即用（1）The soldiers are hiding in the trees and waiting for the to start firing.A.markB.signal C.signD.symbol 解析 这里强调传达某些信息的信号，应用 signal。（2）Rose is considered to be a of love.A.markB.signal C.

18、signD.symbol 解析 句意为：玫瑰被视为爱情的象征。symbol象征；符号。BD重点短语与句型5.in a way our programmer is like our coach.(回归课本P23)观察思考 In a way it was one of our biggest mistakes.从某种意义上来说，这是我们所犯的最大错误之 一。In a way归纳总结in a way意为：。all the way一路上；一直；完全by way of经由，途经by the way顺便说in the way妨碍；挡路in this way以这种方法in no way决不，无论如何都不on

19、 the way在途中on ones way(to).在某人去的途中；即将成为give way(to)让步，屈服有几分；在某种程度上即学即用(1)竟然有这么多的人途经香港去国外，真让人吃惊。Its surprising that so many people should go abroad .(2)我们决不能错过这个被派往国外深造的机会。the chance that someone will be sent abroad for further education.by way of Hong KongIn no way can we miss6.make up In this way I

20、 can new moves using my“artificial intelligence”.(回归课本P23)观察思考 A computer is made up of many different parts.电脑由许多不同的零件组成。He is making up stories.Dont trust him.他在编故事。别信他。She spent two hours making herself up before the party.她在参加聚会前用了两个小时化妆。make up归纳总结make up ；和解，言归于好；，；弥补；把补上。make up for sth.弥补；补偿

21、make for朝某方向移动make full/good/the best use of(=make the most of)充分利用make fun of取笑；捉弄make into转变make it做成功make ones way向走去组成编出化妆打扮make out设法应付；活下来；过活；了解；辨认；理解make sense有意义；有道理；讲得通make sure确信be made from/of.由制造即学即用(1)这个医疗队由10名医生和6名护士组成。The medical team 10 doctors and 6 nurses.(2)玛丽要努力学习，才能把生病时落下的功课补上。M

22、ary had to she missed in school when she was sick by studying very hard.is made up ofmake up for the schoolwork7.watch over It should also my naughty niece,who comes to my house very often.(回归课本P24)观察思考 They were watched over by three policemen.他们由三个警察看守着。Im his best friend,and I will always watch o

23、ver him.我是他最好的朋友，我会一直照看他的。watch overwatch over意为：。watch for留意，观察等待watch out(for)警惕或注意；提防keep(a)watch on监视即学即用(1)过街时，一定要当心交通。When you go across the street,you must the traffic.(2)如果你不小心，你就会有麻烦。You will be in trouble if you dont .看护，照看watch out forwatch out8.deal with This means that it should clean t

24、he house,mop the floors,cook the dinner and telephone calls.(回归课本P24)观察思考 The man is easy to deal with.这个人容易打交道。I dont know how to deal with the naughty boys.我不知道如何来对付这些淘气的男孩。deal with归纳总结deal with意为：。(1)deal with和do with都可表示“处理；对付”，do with常与连接代词what连用，而deal with常与连接副词how连用。(2)deal with的意思较多，常表示“对付，

25、应付；处理；安排；论述；涉及；与交涉，交易”等。处理；安排；对付即学即用（1）这是一本论述亚洲问题的书。This is a book Asian problems.（2）他们学会了和各种人打交道。They have learned to all sorts of people.dealing withdeal with9.with the help of After all,my electronic brain which never forgets anything,using my intelligence is what Im all about！(回归课本P23)观察思考 She s

26、poke with us with the help of an interpreter.她在翻译的帮助下与我们交谈。I worked out the problem with the help of my teacher.在老师的帮助下我解出了这道题。with the help of归纳总结with the help of意为：。(1)help sb.out帮助某人渡过难关/摆脱困境help sb.with sth.帮助某人做某事help(to)do sth.帮着做某事help oneself to自用（食物）；擅自取用(2)cant help doing sth.禁不住做某事cannot

27、help but do sth.不得不做某事，只得做某事在的帮助下即学即用（1）She (不禁 琢磨着)what he was thinking.（2）She stopped smoking (在的帮助下)her family and friends.couldnt help but wonderwith the help of10.And my memory became so large that even I couldnt believe it!我的存储容量变得 如此巨大，连我自己都不能相信！典例体验 It was loud a song we couldnt hear ourselv

28、es.(=It was such a loud song that we couldnt hear ourselves.)这首歌太吵了，我们都听不见自己的声音了。It was bad weather he had to stay at home.sothatsuchthat天气很糟糕，他只好呆在家里。Mr.White got little money a monthhe could hardly keep body and soul together.怀特先生每月赚的钱太少，几乎无法维护生活。归纳总结“so.that.”可引导 从句。其中的so后跟 或 。如果修饰名词短语，要用“so+形容词+

29、a(an)+名词”的形式。此句型中的so用于句首时，so后面的部分要用 序，但 不用倒装。sothat时间状语形容词副词倒装that后的从句(1)not so+adj./adv.(as.)（不像）这么It didnt take so long as we expected.时间没像我们预料的那么久。I havent enjoyed myself so much for a long time.我很长时间没有这么高兴过了。(2)so+adj./adv.+as to do太以致于She was so kind as to phone for a taxi for me.她很热心，打电话为我叫了一辆

30、出租车。How could you be so stupid as to believe him?你怎么这么笨，竟相信他的话？易混辨异so.that，such.that(1)so.that有时可以与such.that互相替换，但such所修饰的名词必须是一个单数可数名词，且该名词前还带有表性质的形容词，即由“so+形容词+a/an+单数名词”转化为“such a/an+形容词+单数名词”。(2)如果是不可数名词或复数可数名词，则只能用such，不能用so修饰。(3)如果名词前有many,few,much,little等表示数量的形容词修饰，则要用so,而不用such，构成so many,so

31、much,so little,so few的形式。即学即用(1)that Marie was able to set up new branches elsewhere.A.So successful her business was B.So successful was her business C.So her business was successful D.So was her successful business 解析 本题考查倒装。so+adj./adv.置于句首，其主句需用部分倒装。(2)They are (孩子们太小以致于他们不能)clean the house by t

32、hemselves.such little children that theycannotB11.She programs us with all the possible moves she has seen while watching human games.她把观看人类比赛时所看到的一切可能 的动作编入我们的程序。典例体验 ,Ill go abroad to study.可能的话，我将去国外学习。Do not talk .吃饭时不要讲话。If(it is)possiblewhile eating归纳总结本句中的while watching.是“”作时间状语。when,while,wh

33、enever,before,after,until,till和if,unless,though等引导的 和 状语从句，当从句的主语与主句的主语一致且从句谓语动词是be的某种形式时，从句的 和 可以省略，即用“连词+分词短语”结构来代替从句。当从句为“连词+it is+adj.”时，也常将 省略掉。连词+分词短语时间条件主语系动词beit is即学即用(1)除非收到邀请，否则我是不会去参加她的聚会的。I wont go to her party .(2)如果有必要的话，我明天来。,Ill come tomorrow.unless(I am)invitedIf(it is)necessary1.利

34、用派生法，品句填词(1)Though the old man usually what he should do,he never his honor.(forget)(2)The novel had interested him and him,but his mothers blame for reading the novel made him .(satisfy)(3)Although I was to get more information,she was unable,or to give me any further details.(will)forgetsforgetsun

35、forgettablesatisfiedunsatisfiedwillingunwilling品味构词串联扩展前缀前缀 动动 词词 后缀后缀 形形 容容 词词un-un-comfort comfort 安慰安慰-ableable不舒服的不舒服的accept accept 接受接受不能接受的不能接受的answer answer 回答回答无法回答的无法回答的avoid avoid 避免避免不可避免的不可避免的bear bear 容忍容忍不能容忍的不能容忍的account account 解释解释难以说明的难以说明的uncomfortableunacceptableunanswerableunavo

36、idableunbearableunaccountable2.利用派生法，品句填词(1)The entire ,it seemed,was watching and news on TV.(nation)(2)He is just the we need for the job.Of course,this is a opinion.(person)(3)After spending a week in Paris,he suddenly appeared in London as if by .(magic)nationnationalinternationalpersonpersonalm

37、agicalmagic串联扩展 名词名词后缀后缀 形容词形容词techniquetechnique技术技术-alal技能的，技巧的技能的，技巧的electricityelectricity电电用电的，电的用电的，电的electionelection选举选举economy economy 经济经济经济的，实惠的经济的，实惠的editoreditor编辑编辑编辑的，主编的编辑的，主编的educationeducation教育教育 technicalelectricalelectoraleconomicaleditorialeducational有关选举的有教育意义的考题回扣【例1】The loss

38、 has not yet been accurately,but it is believed to be well beyond a hundred million dollars.（湖北高考）A.calculatedB.considered C.completedD.controlled 解析 calculate此处意为“计算”。句意为：损 失还没有确切地计算出来，但人们相信它将远远 超出一亿美元。consider考虑；complete完成；结束；control控制，三者均不符合句意。A 课文原文 I began as a machine in France in 1642.【例2】Usu

39、ally John would be late for meetings.But this time,to my surprise,he arrived on time.(辽宁高考)A.littleB.much C.everD.evencalculating解析 句意为：约翰开会通常会迟到，但这一次，令我非常吃惊的是，他按时到会了。修饰“to ones+情感名词”用副词much。答案 B课文原文Over time my memory has developed sothat,like an elephant,I never forget anything I have been told!mu

40、ch【例3】Jenny nearly missed the flight doing too much shopping.(全国高考)A.as a result ofB.on top of C.in front ofD.in need of 解析 句意为：由于买了太多的东西，Jenny 差 点误了航班。as a result of由于的结果，on top of在顶部；in front of在前 面；in need of需要，由句意知A项正确。课文原文 I totally changed my shape.As a resultA【例4】How amazing it is that astron

41、auts are exploring outer space!Its a challenge,I guess,man against nature.(福建高考)A.of B.for C.by D.about 解析 解答本题的关键是去掉插入语I guess,故 原句就为Its a challenge of man against nature.。课文原文 About once a year we are allowed to get together to play a game football.ofA【例5】Mary went to the box office at lunch time,

42、but all the tickets out.（上海高考）A.would sellB.had sold C.have soldD.was selling 解析 玛丽去售票处是一个过去的动作，而票全 部售完发生在玛丽去售票处之前，因此是“过去 的过去”，故用过去完成时。课文原文 They a new type of program just before the competition.had developedB自主检测.品句填词1.Many of the students take their c into the classroom to help them do some maths

43、work,which is not preferred by the teachers.2.Once he was considered to be s ,for he couldnt work out the simplest numbers.3.Robots can also be called a intelligence.4.Everything has its advantages and d .alculatorsimple-mindedrtificialisadvantages5.A good c when facing difficulties is to stay calm.

44、6.P ,I disagree with you on your plan.7.I need some m to make a dress.8.Once he was the c of our football team.9.Its dangerous for a young lady w in the street late at night.10.Use your b ,and you will have a way.hoiceersonallyaterialsoachanderingrain.短语运用1.Saying you are sorry wont the damage of br

45、eaking the vase.2.The doctors and nurses the seriously wounded worker day and night.3.Every week they and compared notes.4.I think we should work out a strategy to this situation.watch over,after all,go by,in a way,in common,with the help of,get together,make up,deal with,as a resultmake upwatched o

46、vergot togetherdeal with5.They helped each other in studies and they made great progress and became good friends.6.the computer,it is now easy to deal with and share information.7.They are friends,but they have little .8.The work is well done .9.With time ,computers are becoming more and more popula

47、r.10.Dont get discouraged by setbacks;we are new to the work .as a resultWith the help ofin commonin a waygoing byafter all.完成句子1.(随时可能出现 事故),which requires the police to be on duty all the day time.2.She (沿着公路徘徊),not knowing what to do and where to go.3.You have to (作出选择)whether to accept the job o

48、r not.4.(从某种程度上看),our programmer is like our coach.5.And my memory (变得如 此之大)even I couldnt believe it.Accidents arise at any timewas wondering up and down the roadmake a choiceIn a waybecame so large that.单项填空1.My brother is strong,brave and,honest.A.above allB.at all C.in allD.after all 解析 above al

49、l最重要的是。句意为：我哥哥坚强、勇敢，最重要的是诚实。A2.Working hard can a lack of intelligence.A.make fromB.take up C.make up forD.make out 解析 make up for弥补。句意为：努力工作能弥 补才智上的不足。C3.John the photograph which he had taken.A.washedB.watered C.developedD.created 解析 develop冲洗（相片、胶卷）。C4.Anyone breaks the law will be punished.A.whi

50、chB.who C.whenD.he解析 who引导定语从句修饰Anyone。B5.the thought of her lost money,she would burst into tears.A.In B.For C.To D.At 解析 at the thought of.一想起。D6.The shirt your blue trousers.A.matchesB.fits C.suitsD.hits解析 match指颜色上的搭配；suit指衣服、鞋子 等在花色、款式美观上的“适合”，其宾语多为 somebody;fit指尺寸、大小适合。A7.Luckily,I buy the tic