高中英语 2Unit3Computers课件 新人教必修2

1、2021/8/11 星期三1Unit 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/completelyart

2、ificial2021/8/11 星期三25.Before going 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

3、of the Olympic spirit.10.The invention of the television caused a r in our daily elligenceriseersonallyoachniversalevolution2021/8/11 星期三3.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 co

4、mmonmake upafter all2021/8/11 星期三4.典型句式运用1.I developed very slowly and it took nearly 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

5、段时间) before.过了不久（一段时间）就考点提炼过了后才2021/8/11 星期三5 It will take/be long (或一段时间) before.要过很久（一段时间）才 It wont 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2021/8/11 星期三63.And my memory

6、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in 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2021/8/11 星期三74.After all,with the help of my electronic brain which never forgets anything,using my

7、 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2021/8/11 星期三85.Whats more,you can use the In

8、ternet 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2021/8/11 星期三9导练互动重点单词1.calculate I began as a machine in France in 1642. (回归课本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。calculating2021/8/11 星期三10Mr.L

9、i 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 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2021/8/11 星期三11即学即用（1）这些广告旨在

10、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 that2021/8/11 星期三122.anyhow ,my goal is to provide humans with a life of high quality.(回归课本P18) 观察思考 I am not feeling quite well but

11、 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。Anyhow2021/8/11 星期三13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；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

12、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2021/8/11 星期三14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 problem 解析 A.不管怎样，还是要谢谢你。B.没关系。 C.不

13、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。A2021/8/11 星期三15（2）I might fail,but I insist on doing it,I dont mind. A.howeverB.anyhow C.yetD.meanwhileB2021/8/11 星期三163.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. 一项新

14、的困难出现了。 I arose early in the morning. 我早上起得很早。arises2021/8/11 星期三17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2021/8/11 星期三18易混辨异arise,arouse,rise,raise原形过去式过去分词 v.-ingarise vi.出现；发生；起因于 arose arisen arisingarouse vt.唤醒，激

15、起aroused aroused arousingrise vi.升起；起身；增长；上升 rose risen risingraise vt.举起；唤起；提高；饲养 raised aised raising2021/8/11 星期三19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 problems .(2)事故由粗心大意引起。 Accidents carelessness.have arisenarise from2021/8/11 星期三204.signal For example,I have le

16、arned 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. 他示意服务员结账。 A red light is a signal of danger. 红灯是危险的信号标志。signal2021/8/11 星期三21归纳总结signal 。易混辨异

17、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2021/8/11 星期三22（3）mark含义广泛，指事物留下的深刻印记，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

18、该事物的标记或象征。The dove is the symbol of peace.鸽子是和平的象征。2021/8/11 星期三23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.signD.symbol 解析 句意为：玫瑰被视为爱情的象征。 symbol象征

19、；符号。BD2021/8/11 星期三24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 way2021/8/11 星期三25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 the

20、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2021/8/11 星期三26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 miss2021/8/11

21、 星期三276.make up In this way I 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 up2021/8/11 星期三28归

22、纳总结make up ； ；和解，言归于好； ， ；弥补；把补上。make up for sth.弥补；补偿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2021/8/11 星期三29make 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

23、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。 Mary had to she missed in school when she was sick by studying very hard.is made up ofmake up for the schoolwork2021/8/11 星期三307.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 wer

24、e watched over by three policemen. 他们由三个警察看守着。 Im his best friend,and I will always watch over him. 我是他最好的朋友，我会一直照看他的。watch over2021/8/11 星期三31watch 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

25、有麻烦。 You will be in trouble if you dont .看护，照看watch out forwatch out2021/8/11 星期三328.deal with This means that it should clean the 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

26、些淘气的男孩。deal with2021/8/11 星期三33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，应付；处理；安排；论述；涉及；与交涉，交易”等。处理；安排；对付2021/8/11 星期三34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 peo

27、ple.dealing withdeal with2021/8/11 星期三359.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 spoke 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

28、师的帮助下我解出了这道题。with the help of2021/8/11 星期三36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 help but do sth.不得不做某事，只得做某事在的帮助下2021/8/11 星期三37即学即用（1）She (不禁 琢磨着) what he was thinking. （2）She

29、 stopped smoking (在的帮助下) her family and friends.couldnt help but wonderwith the help of2021/8/11 星期三3810.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 ourselves. (=It was such a loud song that we couldnt hear ourselves.

30、) 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.sothatsuchthat2021/8/11 星期三39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+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

31、装。sothat时间状语形容词副词倒装that后的从句2021/8/11 星期三40(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出租车。How could you be so stu

32、pid as to believe him?你怎么这么笨，竟相信他的话？2021/8/11 星期三41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 much,so litt

33、le,so few的形式。2021/8/11 星期三42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 hou

34、se by themselves. such little children that theycannotB2021/8/11 星期三4311.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 eating2021/8/11 星期三44归纳

35、总结本句中的while watching.是“ ”作时间状语。when,while,whenever,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 is2021/8/11 星期三45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

36、来。 ,Ill come tomorrow.unless (I am)invitedIf (it is) necessary2021/8/11 星期三461.利用派生法，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 in

37、formation,she was unable,or to give me any further details.(will)forgetsforgetsunforgettablesatisfiedunsatisfiedwillingunwilling品味构词2021/8/11 星期三47串联扩展前缀 动 词 后缀 形 容 词un-comfort 安慰-able不舒服的accept 接受不能接受的answer 回答无法回答的avoid 避免不可避免的bear 容忍不能容忍的account 解释难以说明的uncomfortableunacceptableunanswerableunavoid

38、ableunbearableunaccountable2021/8/11 星期三482.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)nationnationalinternationa

39、lpersonpersonalmagicalmagic2021/8/11 星期三49串联扩展 名词后缀 形容词technique技术-al技能的，技巧的electricity电用电的，电的election选举economy 经济经济的，实惠的editor编辑编辑的，主编的education教育 technicalelectricalelectoraleconomicaleditorialeducational有关选举的有教育意义的2021/8/11 星期三50考题回扣【例1】The loss has not yet been accurately,but it is believed to b

40、e 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。A2021/8/11 星期三51 课文原文 I began as a machine in France in 1642.【例2】Usually John would be late for meetin

41、gs.But this time, to my surprise,he arrived on time.(辽宁高考) A.littleB.much C.everD.evencalculating2021/8/11 星期三52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!much2021/8/11 星期三53

42、【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 resultA2021/8/11 星期三54【例4】How amazing i

43、t is that astronauts 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.ofA2021/8/11 星期三55【例5】Mary w

44、ent to the box office at lunch time,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 developedB2021/8/11 星期三56自主检测.品句填词1.Many of the students take

45、their c into the classroom to help them do some maths 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-mindedrtificialisadvan

46、tages2021/8/11 星期三575.A good c when facing difficulties is to stay calm. 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.hoiceersonall

47、yaterialsoachanderingrain2021/8/11 星期三58.短语运用1.Saying you are sorry wont the damage of breaking 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

48、 way,in common,with the help of,get together,make up,deal with,as a resultmake upwatched overgot togetherdeal with2021/8/11 星期三595.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 frien

49、ds,but they have little . 8.The work is well done .9.With time ,computers are becoming more and more popular. 10.Dont get discouraged by setbacks;we are new to the work .as a resultWith the help ofin commonin a waygoing byafter all2021/8/11 星期三60.完成句子1. (随时可能出现 事故),which requires the police to be on

50、 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 or 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 ch

51、oiceIn a waybecame so large that2021/8/11 星期三61.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 all最重要的是。句意为：我哥哥坚强、 勇敢，最重要的是诚实。A2021/8/11 星期三622.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

52、力工作能弥 补才智上的不足。C2021/8/11 星期三633.John the photograph which he had taken. A.washedB.watered C.developedD.created 解析 develop冲洗（相片、胶卷）。C2021/8/11 星期三644.Anyone breaks the law will be punished. A.whichB.who C.whenD.he解析 who引导定语从句修饰Anyone。B2021/8/11 星期三655. 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。D2021/8/11 星期三666.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。A2021/8/11 星期三677.Luckily,I buy the ticket yesterday. A.was able toB.could C.am able