人教新課標(biāo)版高一必修2Unit 3 Computers ppt課件4

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1、Page 20 Unit 31._2._3._4._5._6._7._8._9._10._complete change in ways of thinking ,working , etc.connected computer systemto make things easierto find the answer using numberscan be moved easily from place to placeto work out the answer to a problemto travel around an area to find out about it comple

2、telyanywayactivity of managing moneyfinanceanyhowtotallyexploresolvemobilecalculatesimplifyrevolutionnetworkFind the word or expressions fro each of the following meanings from the text.2 Complete the passage with the words below My brother was very interested in computers and enjoyed writing progra

3、ms of his own. He used to download information from the Internet and made good use of it. He liked to _the World Wide _ and used the Internet to communicate with computer programmers all over the world. When he went to university he studied IT( information _) and developed a special interest in _ in

4、telligence. After developing special _ of the computer, he hopes to design an _ robot which can think _ and look like a human being, but in _ he has a long way to go.exploreWebtechnologyartificialapplicationsintelligentlogicallyreality3 Read the story below and then use the outline to create one of

5、your own.WORD PUZZLEAn abacusv It is built to solve some mathematical problems. But it is too big. A huge computernAn old calculating machine used in China until now.nIt is a new calculating machine which can solve a large number of mathematical problems.A calculatornIt is a personal computer which

6、can solve all kinds of problems and is used widely now. A PC (personal computer) nIt is a kind of computer which can be taken conveniently like a notebook.A notebook computer 隨著時(shí)間的隨著時(shí)間的流逝流逝, 電腦電腦出現(xiàn)出現(xiàn)了,我們的生活被了,我們的生活被完全完全改變。改變。 根據(jù)我的看法根據(jù)我的看法,在電腦的幫在電腦的幫助之下助之下,我們能夠,我們能夠處理處理很多信很多信息。但是電腦有它的息。但是電腦有它的優(yōu)點(diǎn)優(yōu)點(diǎn),也,

7、也有它的有它的缺點(diǎn)。缺點(diǎn)。Translation: As time went by, computer arose. It has totally changed peoples life. In my opinion, with the help of computer, we can deal with a lot of information. But it also has some advantages as well as disadvantages.Translation:1). With the help of computer, you may not find it har

8、d to deal with and share information. (it做形式賓語(yǔ)) 在電腦的幫助下,你會(huì)發(fā)現(xiàn)處理和分享信息是不難的。2)This will cost a lot of money, but after all, it is worth buying a computer for every teacher.為每位老師購(gòu)置一臺(tái)電腦要花費(fèi)很多錢,但畢竟這很值得。3)If a new situation arises, they will make up new programmes. 如果出現(xiàn)新的情況,他們會(huì)補(bǔ)充新的程序。句型背誦句型背誦4) Personally, I

9、 think the team who won first place cheated.就我個(gè)人而言,我認(rèn)為贏得第一名的那支隊(duì)作弊。5) It is generally believed that IT has both advantages and disadvantages.人們普遍認(rèn)為信息技術(shù)既有優(yōu)點(diǎn)又有缺點(diǎn)。6) In a way, her English has improved but there is still a long way to go.從某種程度上看,她的英語(yǔ)有所進(jìn)步,但對(duì)她來(lái)說(shuō),學(xué)好英語(yǔ)道路還很長(zhǎng)。句型背誦句型背誦7) In common with my teamm

10、ates , I enjoy staying home reading novels when I am on holiday.(現(xiàn)在分詞做狀語(yǔ))和我的同伴們一樣,放假時(shí),我喜歡呆在家里看小說(shuō)。8) However, people thought I was simple-minded until they discovered I had “artificial intelligence”. 可是人們本來(lái)以為我頭腦簡(jiǎn)單,直到發(fā)現(xiàn)我有人工智能時(shí),他們才不這么想了。句型背誦句型背誦9) Charles Babbage is generally considered to have invente

11、d the first computer.人們普遍認(rèn)為第一臺(tái)電腦是查爾斯巴比奇發(fā)明的。10)The door wont open anyway.這門無(wú)論如何也打不開(kāi)。11) As the years have gone by, computers have been made smaller and smaller.一年又一年過(guò)去了,電腦被制造得越來(lái)越小。句型背誦句型背誦12).They had so much work to do that they have to take turns (in/at) looking after their sick mother.他們都很忙以致不得不輪流

12、照顧生病的母親。13) In my opinion, you should watch over your child, who often wanders in the streets.依我看來(lái),你應(yīng)該看管好你那個(gè)孩子,他經(jīng)常在街上徘徊。句型背誦句型背誦Unit 3Change the Active Voice into the Passive Voice: Group A1. We have finished our homework.2. Many visitors have visited the Great Wall.3. Mike has seen two films since

13、last month.4. The Russian government has turned these palaces into museums.Group B1. Our homework has been finished by us.2. The Great Wall has been visited by many visitors.3.Two films have been seen by Mike since last month.4. These palaces have been turned into museums.分析分析:A組組強(qiáng)調(diào)動(dòng)作的執(zhí)行者強(qiáng)調(diào)動(dòng)作的執(zhí)行者,是主

14、動(dòng)語(yǔ)態(tài)是主動(dòng)語(yǔ)態(tài),結(jié)構(gòu)結(jié)構(gòu):主謂賓主謂賓, 相同點(diǎn)相同點(diǎn):兩組都是完成時(shí)態(tài)兩組都是完成時(shí)態(tài),結(jié)構(gòu)結(jié)構(gòu): have/has+過(guò)去分詞過(guò)去分詞B組組的句子強(qiáng)調(diào)動(dòng)作的承受者的句子強(qiáng)調(diào)動(dòng)作的承受者, 是被動(dòng)語(yǔ)態(tài)是被動(dòng)語(yǔ)態(tài).相同點(diǎn)相同點(diǎn): 兩組都是完成時(shí)態(tài)兩組都是完成時(shí)態(tài)結(jié)構(gòu)結(jié)構(gòu): 助動(dòng)詞助動(dòng)詞 have/has been +過(guò)去分詞過(guò)去分詞 Have/ has been V-ed現(xiàn)在完成時(shí)的被動(dòng)語(yǔ)態(tài)現(xiàn)在完成時(shí)的被動(dòng)語(yǔ)態(tài)1.The new bridge over the Yellow River has just been completed. 2.Many more buildings have be

15、en built in the past ten years.表示到現(xiàn)在為止表示到現(xiàn)在為止已經(jīng)完成已經(jīng)完成的某個(gè)的某個(gè)被動(dòng)的動(dòng)作被動(dòng)的動(dòng)作1.被動(dòng)語(yǔ)態(tài)介詞固定搭配不能省略。被動(dòng)語(yǔ)態(tài)介詞固定搭配不能省略。He has thought of a way of solving the problem.Eg.The accident which happened yesterday surprised me.=A way of solving the problem has been thought of.2.break out/ happen/ take place/ arrive/ become/

16、 die/ disappear etc 不及物動(dòng)詞沒(méi)有被動(dòng)語(yǔ)態(tài)不及物動(dòng)詞沒(méi)有被動(dòng)語(yǔ)態(tài)3.帶雙賓語(yǔ)的動(dòng)詞帶雙賓語(yǔ)的動(dòng)詞give /send/bring/ take/teach/show/ tell/ make/ sing/ write/ sell/buy/ ask/ pay/ borrow/ lend/ hand/ offer/provide/ past/get/promise 變被動(dòng)變被動(dòng)語(yǔ)態(tài)有兩種方法:語(yǔ)態(tài)有兩種方法:(2)=The book has been given to him.(1)=He has been given the book.Eg.I have given him th

17、e book. (2) =We have been offered the most comfortable service by him.He has offered us the most comfortable service.(1) =The most comfortable service has been offered to us by him.Change the following sentences into the present perfect passive voice. Put the verbs into the correct form.1.We have bo

18、ught a new personal computer.2.We have found many problems with our new computer.A new personal computer has been bought by us.Many problems have been found with our new computer by us.3. They have built a PC the way we wanted.4. They have just joined our computer to the Internet.5. We have used the

19、 computer every day since we bought it.6. We have written a lot of e-mails on the computer in the past year.A PC has been built the way we wanted by them.Our computer has been joined to the Internet by them.The computer has been used every day since we bought it.A lot of e-mails have been written on

20、 the computer in the past year. 主動(dòng)語(yǔ)態(tài)表示被動(dòng)的若干情形:主動(dòng)語(yǔ)態(tài)表示被動(dòng)的若干情形:1. 謂語(yǔ)動(dòng)詞用主動(dòng)表被動(dòng)的四種情形謂語(yǔ)動(dòng)詞用主動(dòng)表被動(dòng)的四種情形(1)某些連系動(dòng)詞主動(dòng)表被動(dòng):某些連系動(dòng)詞主動(dòng)表被動(dòng):look, sound, smell, taste, prove, feelThis kind of cloth feels soft. That dog looks dangerous. My advice proved to be wrong.(2) 當(dāng)當(dāng)open, close, shut, lock, move等用做不及物動(dòng)等用做不及物動(dòng)詞且表示主語(yǔ)的

21、某種屬性時(shí),通常用主動(dòng)形式表示詞且表示主語(yǔ)的某種屬性時(shí),通常用主動(dòng)形式表示被動(dòng)意義。他們通常與被動(dòng)意義。他們通常與cant, wont等連用。等連用。The door wont shut.Suddenly the door opened. (不強(qiáng)調(diào)誰(shuí)開(kāi)了門不強(qiáng)調(diào)誰(shuí)開(kāi)了門)(3)當(dāng)當(dāng)read, write, wash, sell, clean, cook, burn, draw, cut, wear等詞與等詞與well, easily, quickly 等副詞連等副詞連用時(shí),常用主動(dòng)表被動(dòng)。用時(shí),常用主動(dòng)表被動(dòng)。The cloth washes well. The poem reads smoo

22、thly. The book sells well. This cheese doesnt cut easily. Its too soft. This shirt will wear very long. The floor doesnt clean easily. This kind of rice cooks more quickly than that kind.但是別的時(shí)候要看具體情況而定:但是別的時(shí)候要看具體情況而定:This book sells well. So far, 200 books have been sold out.The sentence was read cl

23、early by her.(4) 某些表示開(kāi)始和結(jié)束的動(dòng)作(某些表示開(kāi)始和結(jié)束的動(dòng)作(begin, start, finish, end, etc.),當(dāng)主語(yǔ)是事物且不強(qiáng)調(diào)動(dòng)作的執(zhí)行者時(shí),),當(dāng)主語(yǔ)是事物且不強(qiáng)調(diào)動(dòng)作的執(zhí)行者時(shí),可用主動(dòng)表被動(dòng)??捎弥鲃?dòng)表被動(dòng)。When does the concert begin? The play ended at ten oclock.2.非謂語(yǔ)動(dòng)詞主動(dòng)表被動(dòng)的情況:非謂語(yǔ)動(dòng)詞主動(dòng)表被動(dòng)的情況:(1)不定式)不定式to blame, to let用做表語(yǔ)時(shí),通常用用做表語(yǔ)時(shí),通常用主動(dòng)表被動(dòng)。主動(dòng)表被動(dòng)。Who is to blame?(該怪誰(shuí)呢?該怪誰(shuí)呢

24、?) The house is to let. (此屋出租。此屋出租。)(2)在)在“be +形容詞形容詞+to do”結(jié)構(gòu)中的不定式通結(jié)構(gòu)中的不定式通常常The question is difficult to answer. Do you think the water is safe to drink? (3) 不定式用于某些動(dòng)詞的(不定式用于某些動(dòng)詞的(have, have got, get, want, need)賓語(yǔ)后做定語(yǔ)時(shí):)賓語(yǔ)后做定語(yǔ)時(shí):I have some letters to write. I want something to drink.但是注意:但是注意:I h

25、ave something to type.(我自己打我自己打) I have something to be typed. (請(qǐng)別人打請(qǐng)別人打)所以:所以:當(dāng)不定式的邏輯主語(yǔ)和句子的主語(yǔ)一致時(shí)就用主動(dòng)當(dāng)不定式的邏輯主語(yǔ)和句子的主語(yǔ)一致時(shí)就用主動(dòng)表被動(dòng),若不一致,則需用被動(dòng)表被動(dòng)。表被動(dòng),若不一致,則需用被動(dòng)表被動(dòng)。I have a letter to post. (自己寄自己寄) I have a letter to be posted. (請(qǐng)別人寄請(qǐng)別人寄)(4)be worth doing; need / want / require doing (to be done)結(jié)構(gòu)中結(jié)構(gòu)中In

26、 all, the book is worth reading. This might be worth thinking about. The plants want watering / to be watered every day. The wall wants repairing / to be repaired.但是:但是:be worthy to be done / of being doneThis book is worthy to be read / of being read.1. (高考高考 江蘇卷江蘇卷) More patients _in hospital this

27、 year than last year.A.treated B. had treated C. had been treated D. have been treated2. (高考高考 北京卷北京卷)The mayor of Beijing says that all construction work for the Beijing Olympics _ by 2006.A.has been completed B. has completed C. will have been completed D. will have completed D高考鏈接高考鏈接C3. (高考(高考 廣

28、西卷)廣西卷)- The window is dirty.- I know. It _ for weeks. A. hasnt cleaned B. didnt clean C. wasnt cleaned D. hasnt been cleaned 4.(高考高考 湖北卷湖北卷)- George and Lucy got married . Did you go to their wedding? - No, I _. Did they have a big wedding?A.was not invited B. have not been invited C. hadnt been invited D. didnt inviteDA1. Finish exercises 1,2,3,4 on page 21.2. Finish using words and expressions and using structures in workbook on page 56-57.3. Find more information about robot.

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