人教版高中英语必修二unit3-section1-Warming-up-&-Readingppt课件.ppt

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1、成才之路成才之路 英语英语人教版人教版 必修必修2ComputersUnit 3Section Warming up&Reading Unit 3课堂要点探究课堂要点探究 2课堂达标验收课堂达标验收3课前新知预习课前新知预习1课课 时时 作作 业业4课前新知预习课前新知预习.单词速记1_(vt.)计算2_(adj.)普遍的；通用的；宇宙的3_(vt.)简化4_(n.)革命5_(vt.)解决；解答6_(n.)真实；事实；现实7_(adj.)可移动的；机动的8_(adv.)(也作anyway)无论如何；即使如此9_(n.)目标；目的；球门；(进球)得分calculateuniversalsimpl

2、ifyrevolutionsolverealitymobileanyhowgoal 10_(n.)(电脑)操作员；接线员operate(v.)操作；手术operation(n.)操作，手术11_(adj.)合逻辑的；合情理的_(adv.)逻辑上；合逻辑地；有条理地12_(n.)工艺；科技；技术_(adj.)科技的13_(n.)智力；聪明，智能_(adj.)智能的；聪明的14_(adj.)私人的，个人的；亲自的_(adv.)就个人而言；亲自operatorlogicallogicallytechnologytechnologicalintelligenceintelligentpersonalp

3、ersonally15_(adj.)总的；整个的(n.)总数；合计_(adv.)完全地；整个地16_(n.)应用；用途；申请apply(v.)申请，应用applicant(n.)申请人17_(n.)金融；财经financial(adj.)财政(上)的，财务(上)的，金融(上)的18_(vt.&vi.)探索；探测；探究exploration(n.)勘探，探测；探险explorer(n.)探测者totaltotallyapplicationfinanceexplore.短语互译1have sth.in common_2compare.with._3according to _4from.on _5

4、流逝 _6结果 _7如此以至于 _8与分享 _9又，既 _10人类 _有共同之处把与相比较根据从时起go byas a resultso.that.share.withas well ashuman race.完成句子1我发展非常缓慢，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。I developed very slowly and it took nearly two hundred years_(before引导的时间状语从句)2一年年过去，我被做得更小了。_，I was made smaller.(as引导时间状语从句)3随着时间的推移，我的记忆能力发展得如此之快，就像一头

5、大象一样，我从来不会忘记告诉我的任何事情！Over time my memory has developed _，like an elephant,I never forget anything I have been told！(so.that.如此以至于)答案：1.before I was built as an analytical machine by Charles Babbage2.As time went by 3.so much that.课文理解Step 1Fast Reading1Think it over and summarize the general idea of

6、 the text in about 10 words._ 2Skim the text and write down the main idea of each paragraph.Paragraph 1：_ Paragraph 2：_ Paragraph 3：_ Step 2Careful Reading1Choose the best answers according to the text.(1)When did the computer come into being?AIn 1640.BIn 1642.CIn 1822.DIn 1936.(2)Which of the follo

7、wing statements is TRUE?ACharles Babbage built an analytical machine in 1642.BAlan Turing wrote a book about how the computer could be made to work as a“universal machine”to solve any difficult mathematical problem in 1936.CThe computers were first connected by a network in the late 1960s.DSince the

8、 1960s the computer has been used to help with medical operations.(3)When was the computer biggest?AIn 1642.BIn 1936.CIn the 1940s.DIn the 1970s.(4)According to the text,the computer has grown smaller mainly because _.Ait uses good materialBit was too large in the pastCits memory has improved a lotD

9、there is less room on the earth(5)What can we infer from the text?AThe computer can take the place of human beings.BThe smaller a computer is，the faster it calculates.CComputers can solve all the problems of human beings.DPeople can benefit more from computers in the future.2Answer the following que

10、stions.(1)Who is the speaker in this text?_(2)Who was the first person to make the earliest computer?_(3)Who do you think really invented the computer?_ 答案：Step 11.The changes and the applications of the computer.2Over time I have been changed quite a lot.These changes only became possible as my mem

11、ory improved.Since the 1970s many new applications have been found for me.Step 21.(1)(5)BBCCD2(1)A computer.(2)Charles Babbage.(3)Alan Turing.7._ the years have gone by,computer has been made smaller,quicker and cleverer.Later,computers 8._(connect)by network and were able to help people deal 9._ in

12、formation and help communication between people around the world.Since its birth,computer has always been 10._(design)to serve the human race.答案：1.The2.It3.logically4.quicker5.to6.which7As8.were connected9.with10.designed课堂要点探究课堂要点探究1.calculate v.(1)计算；核算 We havent really calculated the cost of the

13、vacation yet.我们还没有确切地计算出度假要花多少钱。It has been calculated that at least 47,000 jobs were lost last year.据估算，去年至少丧失了47000个工作。(2)预测；推测Scientists have calculated that the worlds population will double by the end of the century.科学家已推算出世界人口在本世纪末将要增加一倍。归纳拓展(1)be calculated to do sth.(be intended or designed

14、to do sth.)打算做、故意做、可能做某事(2)calculate on sth./doing sth.(depend or rely on sth.)指望或依靠某事物It has been calculated that.据估算(3)calculation n计算，推算calculator n计算器，计算者This advertisement is calculated to appeal to children.这个广告是针对儿童设计的。We cant calculate on(having)good weather for the barbecue.我们不能指望着(有)好天气才去烧

15、烤。活学活用根据语境，使用与calculate相关的词或搭配填空。The little boy usually _ using the _，whose _ is accurate,to _ those difficult math problems.小男孩通常依靠计算准确的计算器来计算那些难的数学问题。The factory _ of production.厂家计算生产成本。答案：calculates on；calculator;calculation;calculatecalculates the costs2simplify vt.简化；使简明Try to simplify your ex

16、planation for us.给我们讲解要尽量简单明了。The technology has been simplified so that everyone can use it.这项技术已经得到简化，以便任何人都能使用它。巧学助记形simple简单的complicated复杂的动simplify简化complicate使复杂化名师点拨后缀fy常用在动词词尾，表示“形成”“变成”“使化”，类似的单词还有：beautify(美化)，classify(分类)等。记住一些常用词缀有利于快速扩大词汇量。活学活用完成句子。Can you _(简化你的语言)a little?答案：simplify

17、your language3solve vt.解决；解答I think I can solve the difficulties.我想我能解决这些困难。It was clever of you to solve the problem.你能解答那个问题真是聪明。归纳拓展solution n解决办法；处理手段a solution to sth.的解决方法The solution to the problem is hard to find.这个问题的解决方法很难找到。易混辨析活学活用选词填空：solve/settle。With the help of the teacher,Tom _ the

18、problem at last.We believe that war never _ anything.It only leads to violence.单句语法填空。The Chinese government is still looking for all possible _(solve)to the problem of unemployment.答案：solvedsettlessolutions句意：中国政府仍然在寻找各种可能的方法解决失业问题。a solution to.“的解决方法”，为固定搭配。4application n应用；用途；申请Since the 1970s m

19、any new applications have been found for me.从20世纪70年代起，我又被开发出了很多新的用途。Have you filled in the application form for a new passport?你填写了领新护照的申请表没有？Barbara made an application for a job as a nurse.巴巴拉提出应征护士的工作。归纳拓展(1)application form 申请表make an application(to sb.)for sth.(向某人)申请某物(2)apply v应用；适用；申请，请求app

20、ly sth.to 把涂到；把应用到apply to 适用于apply oneself to.致力于，集中精力于apply for 申请/请求Pupils in this school practiced applying what they had learnt to antiviolence exercises.这所学校的学生们练习把所学的东西应用到反对暴力的演习中。He applied himself to his new job.他努力干好新的工作。名师点拔(1)make an application for sth.apply for.申请(2)apply to.be applied

21、 to.适用于 活学活用句型转换。This rule cannot be applied to every case.This rule cant _ every case.He made an application for the position last week.He _ the position last week.单句语法填空。After 15 years in the USA,Jane finally decided to apply _ American citizenship.答案：apply toapplied forfor考查动词短语辨析。句意：在美国待了15年之后，简

22、最终决定申请美国国籍。apply for申请，符合句意。5explore vt.&vi.探索；探测；探究I have even been put into space rockets and sent to explore the Moon and Mars.我甚至被放置在航空火箭里去探测月球和火星。What can we get by exploring space?探索太空我们能够得到什么？归纳拓展exploration nC，U探索explorer n探险者The way to solve the problem is now under exploration.该问题的解决办法在探讨中

23、。巧学助记一语言尽exploreHaving explored the lonely island,the explorer took a short rest and then decided to make further explorations.在探索完这座荒凉的小岛之后，这位探索者稍事休息，然后决定作进一步探索。活学活用完成句子。我们一定要探究所有可能提高食品产量的方法。We must _ to improve food production.总有一天，我要去探测月球。_，I _ the Moon.答案：explore all the possible waysOne/Some da

24、y;will explore6anyhow adv.(1)(转换话题、结束谈话或回到原话题时说)无论如何，反正Anyhow I don like it.反正我不喜欢它。(2)而且，加之，反正I dont want to go out and anyhow it is raining.我不想出去，而且天又在下雨。(3)尽管，即使这样I am afraid we cant come,but thanks for the invitation anyhow.恐怕我们来不了，不过还是感谢邀请。误区警示anyhow作“无论如何；而且；即使如此”讲时，可与anyway互换；somehow表示“以某种方式；

25、不知怎么地”。活学活用选词填空：anyhow/somehow。Leave me your address,_._，I dont feel I can trust the man.答案：anyhowSomehow7goal n.(1)目标；目的Youd better set a goal before you start the drill.练习开始前，你最好设定一个目标。(2)球门The ball missed the goal by a few inches.球差几英寸没进门。(3)射门；(进球)得分Our team won the game by two goals to one.我们队以

26、二比一赢了这场比赛。归纳拓展(1)kick/get/make/score a goal踢进一球；得一分Its inweve got a goal!球进了我们射门得分！(2)keep goal守球门Who is keeping goal for China?谁给中国队守球门？(3)life goal/ones goal/aim in life生活目标My goal in life is to help others.我的人生目标是帮助他人。(4)achieve ones goal/realize a goal 实现目标He has achieved his goal.他已经实现了他的目标。巧学助

27、记goal的目标是进球门得分！活学活用完成句子。He decided _ at all risks.他决心不顾一切达到自己的目标。With _，he kept on trying hard to realize it.确定了生活目标，他持续努力来实现这一目标。答案：to reach his goalhis life goal set8.in common共同；共同享有的In common with many people,he likes dancing.跟很多人一样，他喜欢跳舞。Do these achievements have anything in common?这些成就有共同之处吗？

28、They found that they had a lot in common.他们发现他们有很多共同之处。归纳拓展(1)in common with sb./sth.在句中常作状语，意为“与某人/某物一样”。(2)in common还常与have连用，构成以下短语：have something in common有一些共同之处；have much/a lot in common with sb./sth.与有很多共同之处；have little/nothing in common 没有共同之处。活学活用完成句子。和其他许多女孩一样，她也喜欢流行音乐。_ many other girls,s

29、he likes pop music,too.他们在摄影方面兴趣相投。They share _ in photography.他们的观点跟我的没有共同之处。Their opinions _ mine.答案：In common witha common interesthad nothing in common with9from.on 从时起From then on,I grew rapidly both in size and in brainpower.从那时起，我在体积和脑容量方面迅速成长。He never returned home from that day on.从那天以后他就再也

30、没回过家。易混辨析I have lived here since January.自一月份以来，我一直住在这里。from只表示某事物的开始点，可与现在、过去、将来时态连用since自过去某时到现在，常用于现在完成时态活学活用完成句子。Hes been working in a bank _.自从毕业后，他就一直在一家银行工作。Park Geunhye became the first woman president in South Korea _.从2月25日起，朴槿惠成为韩国第一位女总统。答案：since leaving schoolfrom Feb.25 on10as a result结

31、果As a result I totally changed my shape.因此，我完全改变了我的形状。She tried hard to prepare for the competition;as a result,she won the Miss Universe finally.她尽力准备竞赛；结果，她最终赢得了环球小姐。归纳拓展(1)as a result of 由于；因为(2)result vi.发生，产生result from 是由造成的result in/lead to导致；造成He was injured as a result of a car accident.他因车

32、祸而受伤。Let us hope that peace will result from their talks.让我们希望，他们的会谈会带来和平。易混辨析巧学助记巧述“因果”as a result“因此；结果”，常用于表示结果，后面跟句子as a result of“由于；因为”，可置于句首或句末，后面跟名词、代词，动名词活学活用用result的适当短语完成句子。_ the cold air coming，the weather here becomes colder and colder.由于冷空气的到来，这儿的天气变得越来越冷。_，he had to leave.结果，他只得离开。His

33、 failure _ not working hard enough.他的失败是工作不够努力造成的。His laziness _ his failure.他的懒惰导致了他的失败。答案：As a result ofAs a resultresulted fromresulted in11.As time went by,I was made smaller.一年年过去，我被做得更小了。句式分析此句为主从复合句。as引导时间状语从句。主句中含有“make宾语宾语补足语”的复合结构。As the college entrance examination comes near,senior three

34、 students are busy preparing for it.随着高考的临近，高三的学生正为此而忙碌地准备着。To make his proposal more romantic,the man made a wedding dress out of roses for his girlfriend.为使他的求婚更浪漫，这位男士用玫瑰为他的女友制作了一件婚纱。易混辨析as“随着”，是连词，引导时间状语从句with“随着”，是介词，后接名词或代词构成with短语或with复合结构活学活用仿写句子。随着时间的流逝，手机被做得更智能(smart)。_ 随着科技的进步(advance)，我们

35、的生活条件变得越来越好。_，our living conditions _.句型转换。With us becoming more familiar with each other,we find that we have the similar interest._，we find that we have the similar interest.答案：As time goes by,cellphones are made smarter.As science and technology advances;become better and betterAs we become more

36、familiar with each other12Over time my memory has developed so much that,like an elephant,I never forget anything I have been told!随着时间的推移，我的记忆能力发展得如此之快，就像一头大象一样，我从来不会忘记告诉我的任何事情！句式分析(1)此句为主从复合句。句中含有that引导的结果状语从句；而“I have been told”为省掉关系代词that的定语从句，修饰先行词anything。(2)句中“like an elephant”为插入结构。(3)so.tha

37、t.如此以至于。The station looks so attractive that passengers are impressed deeply.这个车站看起来如此吸引人，以至于给乘客留下了深刻的印象。The moving scene moved her so deeply that she burst into tears.这个感人的场景令她感动至深以至于她哭了。活学活用仿写句子。The weather _ I didnt like to leave my room.天气很冷，我不喜欢离开房间。Over time the two girls _ they always share e

38、verything that they each have experienced.随着时间的推移，这两个女孩彼此如此了解，她们总是分享她们经历的每一件事情。答案：was so cold thathave known each other so well that课堂达标验收课堂达标验收.用所给词的适当形式填空1Try to _(simple)your explanation for the children.2There was a _(universe)agreement to keep the peace of the world.3.Most of the participants i

39、n the test showed high _(intelligent)4Even though the car is old,there are no _(technology)problems with it.5The new company welcomes _(apply)from graduates from Tsinghua University.8Every month the boss of the company goes to the Nursery School near the seaside _(person)7He likes to express himself

40、 in a _(logic)way.8The school had to close for lack of _(financial)9Im sorry I _(total)forgot to email it for you.10I havent _(calculate)the result of the math problem.答案：1.simplify2.universal3.intelligence4.technological5applications6.personally7.logical8.finance9.totally10calculated.完成句子1Someone o

41、nce said that travel can help us _ _and learn a lot more about ourselves.(explore)有人曾经说过旅行能够帮助我们探索新的事物和更好地了解自己。2After _ to the company,he was waiting for the result with patience.(application)向这家公司交上申请之后，他在耐心地等结果。3These intelligent boys,who are playing basketball together now,_.(equal)这些聪明的男孩智力相当，他们

42、现在正在一起打篮球。4The activity to be held in the hall _ last three hours.(calculate)即将在这个大厅里举行的活动计划持续三个小时。5In the performance,the actress dressed as a parrot was _ all the audience present.(so)在表演中，打扮成鹦鹉的女演员非常吸引人，她吸引了在场的所有观众。6Many workers had to give up _(result n)由于大雪，很多工人只好放弃开车去上班。7Read the introductions

43、 carefully and find out _ _.(solve)仔细阅读说明，找出解决这个难题的方法。8The athlete standing there is the first _ _.(goal)站在那里的运动员是第一个达到目标的。9They found they _，so they had to get separated.(common)他们发现他们几乎没有共同之处，所以只好分手。10_，they found the house was out of order.(as)随着他们越靠近这座房子，他们发现这座房子一片混乱。答案：1.explore new things2.off

44、ering his application3.equal in intelligence4.is calculated to5.so attractive that she attracted6.driving to work as a result of the heavy snow7the way to solve the puzzle8.to reach the goal9had little in common10.As they got nearer to the house.单词拼写1Have you finished_(计算)yet?2The law needs to be_(简

45、化)3Juliets eyes shone with_(幸福)4This machine has a_(广泛的)use in the home.5He took part in_(革命)when he was young.6Venice is a wonderful city to _(探索)7They achieved their _(目标)of increasing sales by five percent.8Well have an _(智力)test this afternoon.9I dont need any help now but thank you _(无论如何)10It

46、is such a hard problem that it is impossible for me to _(解决)答案：1calculating你算完了吗？2simplified该法规需要简化一下。3happiness朱丽叶的眼里闪耀着幸福的光芒。4universal这种机器在家庭中使用很广泛。5revolution年轻时，他就投身革命了。6explore威尼斯是一个美妙的游览胜地。7goal他们实现了销售增加五个百分点的目标。8intelligence今天下午，我们将进行智力测试。9anyhow/anyway我不需要帮忙，但还是谢谢你。10solve这一道题这么难，我解不出来。课课 时时 作作 业业点此链接点此链接