课件_外研版英语九上《UNIT 2 BOOKS COULD BE PRODUCED MORE QUICKLY AND CHEAPLY》课件.ppt

1、,外研社九年级英语上M4U2 Books could be produced more quickly and cheaply.(全单元完整课件)共62张幻灯片，两个课时授完。分六个部分。第一部分：图片呈现课文重点难点。第二部分：重点难点归纳。第三部分：课文活动。第四部分：语法专讲专练。第五部分：过关检测。第六部分：家庭作业。,Unit 2. Books could be produced more quickly and cheaply.,Module 4 Great inventions,1.80元,Activity 1. Work in pairs. Read the title of

2、the passage. Discuss the advantages of both books and computers. Make a list of the advantages and the disadvantages of the book.,1. get dust on shelves 2.take up space at home 3.can be expen- sive 4.Use trees, so not environmentally,Books,2. often cheap;,1. easy to get and use,3. better than watch-

3、 ing the computers screen;,1.keep lots of information 2.Many ”books” are free 3.Easy to find lots of more obscure “books”,1. Expensive 2. Need to know how to use it correctly 3. Use electricity 4.You can lose everything if it “crashes” 5. Not pleasant to read on screen, need to print out,4.Watch mov

4、ies, listen to music, play games ; 5.Huge amounts of data could be processed; 6. Save important information; 7. Work for a very long time.,Computers,Activity 2. Read the passage and match the main ideas with the paragraphs.,a The world before books b The invention of printing c Life on paper and in

5、print d Technology and books e Can books be replaced by computers?,Can books be replaced by computers?,books,computers,buy a newspaper,Every morning my father buys a newspaper on his way to work.,looks through(1) magazines,Every evening my mother looks through magazines at home.,open my books,Every

6、day I open my books in class and start my lessons.,Every night, I look at the posters with photos of David Beckham and Yao Ming on my bedroom wall.,look at the posters with photos of David Beckham and Yao Ming.,Every morning my father buys a newspaper on his way to work. Every day I open my books in

7、 class and start my lessons. Every evening my mother looks through magazines at home. And every night, I look at the posters with photos of David Beckham and Yao Ming on my bedroom wall before I go to sleep. Can we imagine life without paper or print?,Read the first passage and answer the questions.

8、,P1,c. Life on paper and in print,Which does the passage match with, a, b, c, d or e?,create(2) paper,Paper was first created about 2,000 years ago.,Paper has been made from(4) silk, cotton and bamboo,cotton(3),silk,bamboo,paper,Since 19th century, paper has been made from wood.,wood(5),paper,People

9、 learned to write words on paper to make a book. But in those days, books could only be produced one at a time by hand. As a result, they were expensive and rare.,produce(6) books,one at a time(7),Paper was first created about 2,000 years ago, and had been made from silk, cotton, bamboo, and, since

10、the 19th century, from wood. People learned to write words on paper to make a book. But in those days, books could only be produced one at a time by hand. As a result, they were expensive and rare . And because there werent many books, few people learned to read.,Read the second passage and answer t

11、he questions.,P2,a. The world before books,Which does the passage match with, a, b, c, d or e?,2. Why were books expensive and rare before the invention of printing?,Because they were written by hand.,3. When was paper first created? When do you think were first created?,Paper was first created abou

12、t two thousand years ago. Books were first created soon after paper.,4. Were books produced by hand or by machine at first?,Books were produced by hand.,wooden block(9),ink(8),The first printed books were made by putting ink on a wooden block and holding the paper against it,paper,At the beginning o

13、f(10) the 11th century, printing was developed greatly, books could be produced more quickly and cheaply. As a result, more people learned to read.,1.80元,internet,Read the third passage and answer the questions.,Then printing was invented in china. The first printed books were made by putting ink on

14、 a wooden block and holding the paper against it . When printing was developed greatly at the beginning of the 11th century, books could be produced more quickly and cheaply. As a result, more people learned to read. After that, know-ledge and ideas spread quickly, in a way that can be compared with

15、 the introduction of the internet in the 20th century.,P3,2. Why did ideas spread more quickly when books became cheaper,Because more people learned to read and bought books.,b. The invention of printing,Which does the passage match with, a, b, c, d or e?,3. What was the paper held against?,Paper wa

16、s held against wood blocks.,4. When was printing developed?,Printing was developed in the 11th century.,internet,Information can be received online, downloaded from the Internet rather than(14) found in books.,books,MP3 players,Information can be kept on CD-ROMs or MP3. CD-ROMs or MP3 are smaller an

17、d lighter than books so that they can be carried very easily.,CD-ROM(15),But will books be needed in the future? Today information can be received online, downloaded from the internet rather than found in books, and information can be kept on CD-ROMs or machines such as MP3 players. These machines a

18、re smaller and lighter than books so that they can be carried very easily .,P4,d. Can books be replaced by computers?,Which does the passage match with, a, b, c, d or e?,Read the fourth passage and answer the questions.,2. What can be kept on CD-ROMs?,Information can be kept in CD-ROMs.,3. What can

19、be received online?,Information can be received online.,Computers are already used in classrooms.,Newspapers and magazines can be read online.,newspaper,magazine,-Will books be replaced by computers one day?,-In Tonys opinion, books will not be replaced,by computers .,Such as: The Yao Ming poster wi

20、ll be replaced by a computer two meters high.,Computers are already used in classrooms, and newspapers and magazines can already be read online. So will books be replaced by computers one day? No, I dont think the Yao Ming poster on my bedroom wall will ever be replaced by a computer two meters high

21、!,P5,e. Can books be replaced by computers?,Which does the passage match with, a, b, c, d or e?,Read the fifth passage and answer the questions.,2. What can we use to get information?,Books, computers, etc.,3. How did ideas spread in the past? How do ideas spread today?,In the past, ideas spread by

22、books, and mouth to mouth.,Today, ideas spread by the Internet, TV, radio, books, etc.,Words and expressions,1. look through 浏览/查阅 He looked through many books in order to find the correct answer.,【归纳 拓展】look 构成的词组,(1). look after,(2). look around,(3). look at,(4). look down,(5). look for,照看,四下里看,看着

23、,向下看,寻找,(6). look forward to,(7). look into,(8). look like,(9). look out,(10). look out for,(11).look out of ,(12). look up,(13). look over,期待, 期望, 盼望, 渴望,向里看,看起来像,当心,当心,向外面看,查找, 向上看,仔细检查,2. create,Paper is made from wood.,比较: be made of-,创造, 创作,4. be made from-,An artist should create beautiful thi

24、ngs.,The table is made of wood.,由材料制成 (看,由材料制成(看不出材料),得出原材料),5. wood,木头, 木材,woods,拓展：,意为: 森林,wooden 木制的,3. cotton,棉花,7. at a time,Please come in one at a time, not all together.,6. produce,生产,(1). in time 及时,(2) . on time 按时,【归纳 拓展】,(3). all the time 一直总是,(4). at the same time 同时,(5). from time to t

25、ime 有时；偶尔,一次,拓展：production n. 生产 product n. 产品,8. ink,墨水,9. block,板子, 街区,10. at the beginning of,在.的开始,We often feel very happy at the beginning of the new term.,知识,11. knowledge,Knowledge is power.,12. spread 作不及物动词用，意为: 传播, 如： The news spread quickly and soon every- one knew it.,(6). have a good t

26、ime 过得快乐,13. Introduction n.,(1). 引/传入. 引/传进.,(2). 介绍,She was shy on her first intro- duction to him.,The factory develops very quickly with the introduction of the new technology.,self-introduction n. 自我介绍,拓展； introduce v. 介绍, 引入/引进,1 5. CD-ROM,14. rather than,而不是.,Everybody likes to go to the cine

27、ma this evening rather than stay at home.,1. on ones way (to) s. p.,已学旧词组：,只读光盘,只读光盘存储器,在某人去某地去的路上,3. as a result,4. after that,2. by hand,用手工,在那以后,结果(是),6. in a way,7. Such as,8. MP3 player,9. so that,10. one day,5. comparewith,有一天, 总有一天,以便, 为了, 目的是,MP3播放器,例如,用一种方法,把和相比较,Paper was first created.,Pr

28、inting was developed.,Books may (not) be replaced by computers,Today,In the future,Activity 3. Read the passage again. Make notes to complete the timeline.,information can received online and downloaded from the Internet,11th century,2,000 years ago,Paper was first created about two thousand years a

29、go. Printing was developed greatly in the 11th century. Books could be produced more quickly and cheaply. As a result, more people learned to read. After that, knowledge and ideas spread quickly, in a way that can be compared with the introduction of the internet in the 20th century.,Today, informat

30、ion can received online and downloaded from the Internet.,In the future, books may (not) be replaced,by computers.,Activity 6. Complete the sentences.,people are used to thatthat has been used for many years.,they were written by hand.,2. Books could only be produced one at a,time because-,或者: print

31、ing wasnt invented at that time.,3. Books could be produced more quickly and cheaply after the 11th century because-,printing was developed.,4. We may not need books in the future because-,information can be stored in computers, CD-ROMs, etc.,5. Books will never be replaced by computers,people like

32、books. People are used to reading paper books.,because-,或者: people can read on computers.,Activity 7. Look at how to give reasons /results,as a result,because,so,so that,What was the result of books becoming cheaper?,Books became cheaper, as a result more people learned to read.,2. Why must printing

33、 be thought of as one of the most inventions?,Printing must be thought of as one of the most,inventions because it made books produced quickly,3. More people learned to read in the 11th century. What happened then?,More people learned to read in the 11th century so knowledge and ideas spread quickly

34、.,4.What development will mean that books wont be needed in the future?,Computers are used and newspapers and magazines can be read on line so that books wont be needed in the future.,含有情态动词的被动语态: 情态动词+be+及 物动词过去分词(情态动词有：can/could, may/might, must, shall/should, will/would, 等.),You can buy computers

35、 quite cheaply now.,Computers can be bought quite cheaply now,1. a) All students must read this book. b) This book _by all students. 2. a) Everyone can understand his ideas. b) His ideas _by everyone.,must be read,can be understood,3. a) I could not fine her books anywhere. b) Her books _anywhere. 4

36、. a) For a long time, many people could not use computers. b) Computers _by many people for a long time.,could not be found,could not be used,can be done,must not be taken,5. a) We can do the work now if you want. b) The work _now if you want. 6. a) You must not take these magazines from the library

37、. b) These magazines _ from,the library.,过关练习,一. 中英对译,1.书能被计算机替代。 Books _ by computers.。,2.书不能被计算机代替。 Books _by computers,3.书能被计算机替代吗？ _books_ by computers?,can be replaced,can not be replaced,Can,be replaced,4. 什么时候书能被计算机代替呢？ When_ books _ by computers?,can,be replaced,5. 可以做作业了。 Homework_. 6. 可以照相

38、片了。 Photos _. 7.应该洗衣服。 Clothes_.,can be taken,can be washed,can be done,1.We wont need paper.,Paper wont be needed.,2.We will publish it on the school website.,It will be published on the school website by us.,二. 将下列句子变为含情态动词的被动语态,3.We can read it on screen.,It can be read on screen by us.,4.We can read and even listen to the same,The same information can be read and even be listened to on computers by us.,inf