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1、Unit 3 Computers,Learning About Language,The history of computers,the second generation (1956-1963),the third generation (1964-1971),the fourth generation (1971- ),The first generation (1945-1956),calculating machine,Pc(desktop/notebook),analytical machine,universal machine,artificial intelligence,I
2、nternet,.,Listen, Read and Talk,Revision,.,Translation:,1.依你们看,我该怎么办? 2.他们无共同之处. 3.他是一个头脑简单的人. 4.他跑得太快,我赶不上他.,In your opinion, what should I do?,They have nothing in common.,He is a simpleminded man.,He ran so fast that I couldnt catch up with him.,5.你将怎样处理这场车祸?,How will you deal with the car accide
3、nt?,Presentation,Active voice or Passive voice? 1.The old man has been dead for two years. 2.They have done the job. 3.The house has been built for 3 years.,Passive Voice,-,现在完成时被动语态谓语: has/have+been+past participle,Grammar,How?,*They have read 20 books.,-,20 books,_,have been read,by them.,方法,找宾作主,
4、看时定式,*I have bought a car .,A car,has been bought,(by me),Please do the following: Active voice Passive voice,1.We have bought a new personal computer. 2.We have found many problems with our new computer. 3.They have built a PC the way we wanted.,A new personal computer has been bought by us,Many pr
5、oblems have been found with our new computer.,A PC has been built the way we wanted.,4.They have just joined our computer to the Internet. 5.We have used the computer every day since we bought it. 6.We have written a lot of e-mails on the computer in the past year.,A lot of e-mails have been written
6、 on the computer in the past year.,Our computer has just been joined to the Internet.,The computer has been used every day since we bought it.,Choice,1.You can see the house_ for years. isnt painted B.hasnt painted C.hasnt been painted D.hadnt been painted,C,2.-How long_ at this jobs? -Since 1990. A
7、.were you employed B.have you been employed C.had you been employed D.will you be employed,B,3.Great changes_in the city, and a lot of factories_. A.have been taken place; have been set up B.have taken place; have been set up C.have taken place; have set up D.were taken place; were set up 4.She has_
8、 by her classmates. A.laughed B.laughed at C.been laughed D.been laughed at,(B),D,5.Both my brithers work at the power station that_in 1996. A.has set up B.has been set up C.was set up D.is set up 6.Rainforests_ and burned at such a speed that they wll disappear from the earth in the near future. A.
9、cut B.are cut C.are being cut D.had been cut,C,C,Discovering useful words and expreessions,1._ completely (p19) 2._ completely change 3._ to make something happen 4._ when a baby or anomal is born 5._unable to understand difficult things,totally,revolution,Sothat,birth,simple-minded,6_pass 7._take c
10、orrect action 8._broadcast on several different channels 9._indeed 10._used to show that sth.happens in spite of a problem,go by,deal with,network,truly,anyway,Complete the passage with the words:,One day I decided I would change the way I work and make a_in the office. So I bought a computer and ma
11、de sure it was joined to a _. And it was _ exciting_my letters became neat and tidy and everybod y could read my writing. But as time_I begain to feel that my idea had been_ wrong. Now I was no longer able to feel that my work was_my own. When I became unhappy, my_ _colleagues thought I needed a mor
12、e advanced model of computer._ they bought me a new one.So I have never been able to escape from technology and_ my work as I think fit!,revolution,network,so,that,went by,totally,truly,simple-minded,Anyway,deal with,Tick the right word,1.Life (total/totally) changed when I went to university. 2.I w
13、as (amazing/amazed) to find that I won the competition to design a new computer. 3.The competition was so (excited/exciting) that we cheered all evening.,4.I was so (excited/exciting) at the thought of meeting Yang Liwei that I could not sleep. 5.Robots can be bought so (cheap/cheaply) that I gave one to each of my friends. 6.It was so (unlucky/unluckily) that you lost your watch at the concert.,Homework,Using words and expressions(EX.1. and EX.2.) P56p57 Using structures(EX.1. and EX.2.),Goodbye,
