北师大版高中英语必修2《Unit4 Lesson1》课件

《北师大版高中英语必修2《Unit4 Lesson1》课件》由会员分享，可在线阅读，更多相关《北师大版高中英语必修2《Unit4 Lesson1》课件（67页珍藏版）》请在七七文库上搜索。

1、Lesson 1 Tomorrows World,Cyberspace,Modern technology (现代科技）helps us do many things.,Digital Cameras 数码相机,MP3,computers,robots (机器人）,the Internet,cellphones (无线电话）,CD (Compact Disc) 光盘,DVD(Digital Video Disc) 数字化视频光盘,Pre-reading,smart,convenient,multi-functional,send SMS, call, alarm clock, games, t

2、ake photos, mp3, go on line,typical cellphone,Only for calls,Have you ever seen such a camera?,Digital camera,gramophone,mp3,disc man,Can you image what a computer looks like in the 1980s?,But in the 21st century, ,communicate by e-mail,get new films on the Internet,have virtual reality schools,get

3、all our entertainment on the Internet,have an Internet connection in every room of the home,1. 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?,Questions,But modern technology (现代科技）ca

4、n also cause problems. Work in small groups of 4 and discuss : Group 1: the advantages(优点）of robots Group 2: the disadvantages（不足）of robots Group 3: the advantages of computers Group 4: the disadvantages of computers,1. Robots can work in dirty and dangerous places. 2. Robots can work without sleep

5、and food.,Robots cant think or make decisions. 2. People may lose jobs if robots are used instead of humans.,Robots,Computers are expensive. Computers cant think or make decisions.,Computers help us work faster. 2. Computers can help us solvedifficult problems.,Computers,affect rapidly growth pessim

6、istic hacker optimistic,n. 影响 adv.快，迅速地 n.生长 adj. 悲观的,厌世的 n.电脑黑客 adj.乐观的,Words preview Lesson 1,crime criminal terrorist attack chaos crash,n. 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 preview Lesson 1,offer entertainment disappear as if harm obvious destruction,n. 提供，提议 n. 娱乐，款待 v

7、i. 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 preview Lesson 1,Look at the title of the article. Which of these topics do you think the article will mention?,* the Internet * artificial human * time travel * robots * global warming * virtual reality,Pre-reading,Read the article and match the v

8、ocabulary from the text with the definitions.,hacker, chaos, terrorist, the Net (Internet), virtual reality, crash,Fast reading,1. a person who enters other peoples computer programmes in secret,hacker,2. The use of computers to make situations feel and look real,virtual reality,3. have an accident

9、by violently hitting something,4. someone who does terrible things to harm countries, governments and people,crash,terrorist,5. computer system that allows millions of people around the world to share information,the Net,6. a terrible situation in which everything goes wrong,chaos,In spite of the de

10、velopment of computers, it is unlikely to live in virtual reality . The text infers to us that worry is necessary and computers and the Internet may do bad to us. It is certain that in the future we will not go to school in the classroom like us.,True or false,4. According to the text, it is possibl

11、e 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, television and the mail disappear and are replaced by computer.,Net grows rapidly,The future of cyberspace,Crime comes a

12、bout unavoidably,Great convenience,Live in virtual reality,Careful reading,Take 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 op

13、timistic （乐观的）about the future of the Internet?,pessimistic,hackers,Cyber terrorists,now,in the future,criminal,optimistic,in the future,virtual reality,work,shop,study,get entertainment,TV & postal service will disappear,already,in the next few years,shop on the Internet,get information,buy books,f

14、ind out holidayoffers,book tickets,How do the computer and the Net are 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 opinionsb) Virtual realityc) Optimistic opinionsd) The growth of the Internet,2,4,3,1,

15、Match the paragraphs with these headings.,Post-reading,Correction,In the last thirty years, the Internet grew rapidly. 2. Terrorists may “attack” the worlds computers, cause chaos, make planes and trains crash. 3. It is convenient to order tickets from the Internet. 4. In 1983, there were only 200 c

16、omputers connect to the Internet.,has grown,and,book,connected,5. 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 much convenient. 8. The mail service may also disap

17、pear as the increasing use of e-mail.,that,the,more,with,After 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 your group members!,Creation and Speaking,Discussion,1.One worry is crime in

18、cyberspace. Young hackers can get into the computers of banks and governments. 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 pictures that make you feel as if you a

19、re 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 going to a_ our lives grea

20、tly. Some experts are pessimistic about the future, worrying the c _ brought about by the rapid development of cyberspace.,Cloze,apidly,ffect,rime,However, people just cant deny the great advantages and convenience the Internet has o _ to us. In the future, people may live, work and even study in v_

21、 _.,ffered,irtual reality,Language points,1. 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.

22、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 b

23、efore the 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? She

24、s been working there 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 intende

25、d to hurt or damage sb. or sth.: 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

26、 government has come under attack from all 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 gan

27、g of youths. Army forces have been attacking the 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., suc

28、h as a disease or a chemical, attacks sth., it damages it: AIDS 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 ch

29、ances of winning a gold medal.,5. find out holiday offers 查找节日特惠价,offer: 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,

30、growth n. 1 U The growth of a person, animal or plant is its process of increasing in 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

31、 growth. The rapid growth of opposition to the plan has surprised the council. Electronic 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

32、that entertain people, or a performance of this type:,Theres not much in the way of entertainment in 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 servic

33、e charge military service domestic service in-service training a self-service salad bar,8. mail service邮政服务,(高速公路)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; effect 2.你把这

34、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.,A,connect,to/with,is,connected,with,4. 尽管我们有许多困难，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

35、.offer,optimistic,about,though,D,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 this picture is ! It looks _ the butterflies in it were flying to us.A. as if/though B. that C. like D. if,A,A,offer sth. to (介词）sb. 向某人提供某物 offer to do

36、（不定式） sth. 主动去做,通常用在 look, seem, sound, taste, smell,feel等连系动词后。,翻译句子,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 pessimistic about the future.,Predictions will and be going to,Read the following sentences from the text. In pairs, dec

37、ide which talks about a future event we can predict from a present situation? expresses our opinions and beliefs about the future?,Language Study,1. , it is clear that we are going to see an explosion of shopping on the Internet. 2. She also believes that, in the future, we will get entertainment fr

38、om the Internet and that television will probably disappear. 3. Personally, I think virtual reality will become part of modern life, ,a,b,b,Which comment is better in each situation?,Youre planning to buy a computer.a) I hope it will be cheap.b) It is going to be cheap.,2. Its the last ten minutes o

39、f 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 to,will,talks about a future event we can predict from a present situation,expresses our opinions and bel

40、iefs 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 will,Earth Report! Dr Carl Wight is an expert on the environment. He speaks to our reporter. “It is clear that in the next few years the Earths climate(1)_ change . Im afraid that this probably means that many

41、kinds of animals, such as the South China tiger, (2)_ disappear soon.,is going to,are going to,Changes in climate(3)_ certainly affect peoples lives too. Because of global warming, the sea has already destroyed parts of Britain. It is obvious that this destruction (4)_become more dangerous in the fu

42、ture. We have to take immediate action, or I fear that life on Earth (5)_get worse.”,are going to,will,will,翻译句子,1. 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. 不久大家知道了彼得和艾丽斯将要结婚的消息。 It soon came out that Peter and

43、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 see 2. If their marketing plans succeed, they _ their sales by 20 percent. A. will increase B. have been increasing C. have incr

44、eased D. would be increasing,高考链接,Language in Use,Make 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 will be no traffic problems by the year 2050 because many of us will be working at home using computers.,Homework,Writing: Do you feel pessimistic or optimistic about the future of the Internet? Why?,