北师大版高一英语必修二课件：unit4 Cyberspace Lesson1 (共67张PPT).ppt

1、Lesson 1 Tomorrows WorldModern technology(现代科技）helps us do many things.Digital Cameras 数码相机MP3computersrobots(机器人）the Internetcellphones(无线电话）CD(Compact Disc)光盘DVD(Digital Video Disc)数字化视频光盘Pre-readingsmartconvenientmulti-functionalsend SMS,call,alarm clock,games,take photos,mp3,go on linetypical ce

2、llphoneOnly for callsHave you ever seen such a camera?Digital cameragramophonemp3disc manCan you imagewhat a computerlooks like in the 1980s?But in the 21st century,communicate by e-mailget new films on the Internethave virtual reality schoolsget all our entertainment on the Internethave an Internet

3、 connection in every room of the home1.Why did things change so much?2.Imagine what happens in the next twenty years.3.What do you think the computer gives us?Advantage or disadvantage for our life?But modern technology(现代科技）can also cause problems.Work in small groups of 4 and discuss:Group 1:the a

4、dvantages(优点）of robotsGroup 2:the disadvantages（不足）of robotsGroup 3:the advantages of computersGroup 4:the disadvantages of computersAdvantagesDisadvantages1.Robots can work in dirty and dangerous places.2.Robots can work without sleep and food.1.Robots cant think or make decisions.2.2.People may lo

5、se jobs if robots are used instead of humans.RobotsAdvantagesDisadvantages1.Computers are expensive.2.Computers cant think or make decisions.1.Computers help us work faster.2.Computers can help us solve difficult problems.Computersaffectrapidlygrowthpessimistichackeroptimisticn.影响adv.快，迅速地n.生长adj.悲观

6、的,厌世的n.电脑黑客adj.乐观的Words previewLesson 1crimecriminalterroristattackchaoscrashn.犯罪，罪行n.罪犯n.恐怖分子n.&vt.进攻，攻击n.混乱，无秩序vt.使猛撞，使撞毁Words previewLesson 1offerentertainmentdisappearas ifharmobviousdestructionn.提供，提议n.娱乐，款待vi.消失好象，仿佛vt.&n.伤害，损害adj.明显的,显而易见的n.破坏，毁灭Words previewLesson 1Look at the title of the a

7、rticle.Which of these topics do you think the article will mention?*the Internet *artificial human *time travel *robots *global warming *virtual realityPre-readingRead the article and match the vocabulary from the text with the definitions.hacker,chaos,terrorist,the Net(Internet),virtual reality,cra

8、shFast reading1.a person who enters other peoples computer programmes in secrethacker2.The use of computers to make situations feel and look realvirtual reality3.have an accident by violently hitting something4.someone who does terrible things to harm countries,governments and puter system that allo

9、ws millions of people around the world to share informationthe Net6.a terrible situation in which everything goes wrongchaos1.In spite of the development of computers,it is unlikely to live in virtual reality.2.The text infers to us that worry is necessary and computers and the Internet may do bad t

10、o us.3.It is certain that in the future we will not go to school in the classroom like us.4.According to the text,it is possible that people live in another world of outer space.5.In virtual reality,you can go to work but neednt go to the place yourself.6.Because of the rapid development of Internet

11、,television and the mail disappear and are replaced by computer.Net grows rapidlyThe future of cyberspaceCrime comes about unavoidablyGreat convenienceLive in virtual realityCareful readingTake out a sheet of paper.Work in groups of 4 and write down the structure of the passage.(文章的写作结构）Tips:（提示）从文章

12、的两类人的观点着手。1.Why are some experts pessimistic(悲观的）about the future of the Internet?2.Why are some people optimistic（乐观的）about the future of the Internet?pessimistichackersCyber terroristsnowin the futurecriminaloptimisticin the futurevirtual realityworkshopstudyget entertainmentTV&postal servicewill

13、disappearalreadyin the next few yearsshop on the Internetget informationbuy booksfind out holiday offersbook ticketsHow dothe computerand the Netare going to affect our life.The structure of the passage (文章的写作结构）bad:pessimistic(悲观的）good:optimistic（乐观的）Topic Sentence（中心句）a)Pessimistic opinions b)Virt

14、ual reality c)Optimistic opinions d)The growth of the Internet2431Match the paragraphs with these headings.Post-readingCorrection1.In the last thirty years,the Internet grew 2.rapidly.3.2.Terrorists may“attack”the worlds puters,cause chaos,make planes 5.and trains crash.6.3.It is convenient to order

15、 tickets from 7.the Internet.8.4.In 1983,there were only 200 computers connect to the Internet.has grownandbookconnected5.It is clear we can use the Internet to do all kinds of things at home.6.Personally,Im optimistic about the future of Internet.7.As society develops,computers will make our life m

16、uch convenient.8.The mail service may also disappear as the increasing use of e-mail.thatthemorewithAfter reading the article,discuss:What will you do to bring both machines and people together and make the world beautiful again?Get one to report the opinions of yourgroup members!Creation and Speaki

17、ng Discussion1.One worry is crime in cyberspace.2.Young hackers can get into the computers of banks and governments.3.3.Terrorists“attack”the worlds computers,cause chaos,and make planes and trains crash.Why are some experts pessimistic about the future?1.The use of computers with sounds and picture

18、s that make you feel as if you are in a real situation.2.Virtual reality will become a part of modern life.People live and work in virtual offices,shop in virtual supermarkets and study in virtual schools.How is our future in virtual reality?The Internet has grown r_in the last thirty years and is g

19、oing to a_ our lives greatly.Some experts are pessimistic about the future,worrying the c _ brought about by the rapid development of cyberspace.ClozeapidlyffectrimeHowever,people just cant deny the great advantages and convenience the Internet has o _ to us.In the future,people may live,work and ev

20、en study in v_ _.fferedirtual realityLanguage points1.affect our lives 影响着我们的生活affect vt.to have an influence on sb.or sth.,or to cause them to change:Both buildings were badly affected by the fire.The divorce affected every aspect of her life.Its a disease which affects mainly older people.effect n

21、.the result of a particular influence:The radiation leak has had a disastrous effect on/upon the environment.I tried taking tablets for the headache but they didnt have any effect.I think Im suffering from the effects of too little sleep.last adj.,adv.,pron.(being)the most recent or the one before t

22、he present one:Did you hear the storm last night(=during the previous night)?Did you see the news on TV last night(=yesterday evening)?2.in the last thirty years 在最近三十年间They got married last November.When was the last time you had a cigarette?When did you last have a cigarette?Shes been working ther

23、e for the last month(=for the four weeks until now).The/These last five years have been very difficult for him.The last time we heard of her,she was working as an English teacher in France.Each of her paintings has been better than the last.attack n.1 a violent act intended to hurt or damage sb.or s

24、th.:Enemy forces have made an attack on the city.These bomb blasts suggest that the terrorists are(going)on the attack(=trying to defeat or hurt other people)again.3.attack the worlds computers 向世界计算机发起攻击2 when you say sth.to strongly criticize sb.or sth.:The government has come under attackfrom all

25、 sides for cutting education spending.3 the part of a team in some sports which tries to score points:The team has a strong attack,but its defence is weak.attack v.1 to try to hurt or defeat using violence:He was attacked and seriously injured by a gang of youths.Army forces have been attacking the

26、town since dawn.Most wild animals wont attack unless they are provoked.2 to criticize sb.strongly:She wrote an article attacking the judges and their conduct of the trial.The report attacks the idea of exams for 7-and 8-year-olds.3 If sth.,such as a disease or a chemical,attacks sth.,it damages it:A

27、IDS attacks the bodys immune system.4.be pessimistic about 对悲观The tone of the meeting was very pessimistic.The doctors are pessimistic(=not hopeful)about his chances of recovery.be optimistic about 对乐观She is optimistic about her chances of winning a gold medal.5.find out holiday offers 查找节日特惠价offer:

28、n.a reduction of the price of sth.in a shop for a short time本周他们特价售货，买二增一。They have a special offer this weekbuy two,get one free.橄榄油本周降价出售。Olive oil is on offer this week.6.a huge growth of shopping on the Net 网上购物大增长growth n.1 U The growth of a person,animal or plant is its process of increasing i

29、n size:A balanced diet is essential for healthy growth.Plant growth is most noticeable in spring and early summer.2 U an increase in the size or the importance of sth.:The government is trying to limit population growth.The rapid growth of opposition to the plan has surprised the council.Electronic

30、publishing is a growth area(=an area of activity that is increasing in size and developing quickly).7.get entertainment 进行娱乐活动entertainment n.shows,films,television,or other performances or activities that entertain people,or a performance of this type:Theres not much in the way of entertainment in

31、this town-just the cinema and a couple of pubs.This seasons entertainments include five new plays and several concerts of Chinese and Indian music.service station/services service industry service chargemilitary service domestic servicein-service training a self-service salad bar8.mail service邮政服务(高

32、速公路)服务区服务业服务费服兵役家政服务在职培训自助沙拉1.The new law will be put into _ next month.Do you think it will _ your life?A.effect;affect B.effect;effect C.affect;affect D.affect;effect2.你把这根电线和电视机连上好吗？Will you _ this wire _ the television?3.这个人与那宗犯罪有关。This man _ _ _ the crime.Aconnectto/withis connected with4.尽管我们有

33、许多困难，但我们应当乐观地对待生活。We should be _ _ our life _ we are in great trouble.5.-Five dollars.Thats my last _.-All right.Thats a deal.A.opportunity B.amount C.support D.offeroptimisticaboutthoughD名词：出价/提供的帮助6.When he heard our difficulty,he_to help.A.offered B.suggested C.supported D.said7.How beautiful thi

34、s picture is!It looks _ the butterflies in it were flying to us.A.as if/though B.that C.like D.if AAoffer sth.to(介词）sb.向某人提供某物offer to do（不定式）sth.主动去做通常用在 look,seem,sound,taste,smell,feel等连系动词后。1.气候影响了他的健康。The climate affected his health.2.敌人在夜里向我们进攻。The enemy attacked us at night.3.他对未来感到悲观。He is p

35、essimistic about the future.Predictions will and be going toRead the following sentences from the text.In pairs,decide whicha)talks about a future event we can predict from a present situation?b)expresses our opinions and beliefs about the future?Language Study1.,it is clear that we are going to see

36、 an explosion of shopping on the Internet.2.She also believes that,in the future,we will get entertainment from the Internet and that television will probably disappear.3.Personally,I think virtual reality will become part of modern life,abbWhich comment is better in each situation?1.Youre planning

37、to buy a computer.2.a)I hope it will be cheap.3.b)It is going to be cheap.2.Its the last ten minutes of a basketball match between Russia and the USA.The score is 102:56 to Russia.a)The USA will lose.b)The USA is going to lose.a)I hope it will be cheap.b)The USA is going to lose.be going towilltalks

38、 about a future event we can predict from a present situationexpresses our opinions and beliefs about the future表示某人打算做某事主观意愿叙述某事将要发生客观的叙述Complete the text with be going to or willEarth Report!Dr Carl Wight is an expert on the environment.He speaks to our reporter.“It is clear that in the next few y

39、ears the Earths climate(1)_ change.Im afraid that this probably means that many kinds of animals,such as the South China tiger,(2)_ disappear soon.is going toare going toChanges in climate(3)_certainly affect peoples lives too.Because of global warming,the sea has already destroyed parts of Britain.

40、It is obvious that this destruction(4)_become more dangerous in the future.We have to take immediate action,or I fear that life on Earth(5)_get worse.”are going towillwill1.我将会尽力而为。I will do my best.2.他现在已讲了近一个小时了。他准备什么时候闭嘴呢？Hes been speaking now for nearly an hour.When is he going to shut up?3.不久大家

41、知道了彼得和艾丽斯将要结婚的消息。It soon came out that Peter and Alice were going to get married.1.How can I apply for an online course?Just fill out this form and we _ what we can do for you.A.see B.are seeing C.have seen D.will see2.If their marketing plans succeed,they _ their sales by 20 percent.A.will increase

42、 B.have been increasingC.have increased D.would be increasingLanguage in UseMake predictions about life by the year 2050.Example:A:The earth is going to become more crowded and we are going to have more problems with traffic.B:No,I dont agree.I think there willbe no traffic problems by the year 2050 because many of us will be working at home using computers.HomeworkWriting:Do you feel pessimistic or optimistic about the future of the Internet?Why?