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外研版九年级英语上册odule 4 Unit 2最新课件

发布时间:2013-10-16 08:03:57  

Module 4 Great inventions
Unit 2 Books could be produced more quickly and cheaply.

Lead in

Let’s Review

Have/has been + done
This book/ read/ by everyone in my class This book has been read by everyone in my class. 1.This book/ discuss/ on telephone

This book has been discussed on the telephone.
2.It/ buy/by thousands of people

It has been bought by thousands of people.

3.Children/tell/to read this book

Children have been told to read this book.
4.This book/ print/ again and again

This book has been printed again and again.
5.Other books /write /about this book

Other books have been written about this book.

Let’s Review Complete sentences You can buy computers quite cheaply now. Computers can be bought quite cheaply now. 1.a) All students must read this book. b) This book _____________by all students. must be read 2.a)Everyone can understand his ideas. b) His ideas ________________by everyone. can be understood 3.a)I could not find her books anywhere. b) Her books ________________ anywhere. could not be found 4.a) For a long time, many people could not use computers. b) Computers__________________ by many people for a could not be used long time.

Let’s Review

Complete sentences

You can buy computers quite cheaply now.

Computers can be bought quite cheaply now
5.a) We can do the work now if you want. can be done b) The work _____________now if you want. 6.a) You must not take these magazines from the library. b) These magazines ________________ from the library .

must not be taken

Talk in pairs

What’s the advantages of
and

Can books be replaced by computers?

Read and get the main ideas of the paragraph
Paper was first created about 2,000 years ago, and has been made from silk, cotton, bamboo, and,since 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 weren’t many books, few people learned to read. a. The world before books

Read and get the main ideas of the paragraph Then printing was invented in China. The first printed books were made by putting ink on 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, knowledge and ideas spread quickly, in a way that can be compared with the introduction of the Internet in the 20th century. b. The invention of printing

Read and get the main ideas of the paragraph Every morning my father buys a newspaper on his way to work. Every day I open my books in 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? c. Life on paper and in print

Rea

d and get the main ideas of the paragraph
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 are smaller and lighter than books so that they can be carried very easily. d. Technology and books

Read and get the main ideas of the paragraph
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 don’t think the Yao Ming poster on my bedroom
wall will ever be replaced by computer two metres

high!
e. Can books be replaced by computers?

Language Points 1. look through 浏览,温习
eg. He looked through many books in order to find the

correct answer.
为了找到正确答案,他查阅了许多书籍.

2. with– without 带有?? / 没有??
eg. He found a house with many trees around. 他找到了一所周围有许多树的房子. He went to school without breakfast today. 他今天没有吃早饭就去上学了.

Language Points

3. be made from
be made of

由??材料制成(看不出材料)
由??材料制成(看得出材料) 由??组成(部分或成员) 出产于??(某地) 由??制成(生产者) 制成??(产品)

be made up of
be made in

be made by
be made into

eg. 1. Look at the camera, It is _________Japan. made in 2. The table is _________wood, while paper is made of ___________wood. made from made up of 3. Our class is _____________twenty boys and twenty-

three girls.
4. The metal can be __________ a knife. made into

made by 5. This kind of car is __________ many workers in the
factory.

Language Points 4. write words on make a book in those days 在??上写字 做成书 那时,当时

at a time
by hand as a result

一次,每次
手工的 结果

eg. 1. He could even eat three hamburgers _________, at a time ___________ he became very fat. as a result by hand 2. This picture is produced ___________, so it’s very expensive. In those days 3. _______________ there were few people knew about computers.

4. They tried to _____________ paper in order to write words on
_____________ . make a book

5. put… on
hold… against after that in a way

Language Points 将??放在上面
将??贴到 然后, 之后 以??方式

6. at the beginning of 在??初/ 开始时

7. compare… with…. 与??相比 , 与??相媲美 eg.You can’t compare him with Tom, they’re

different.
as compared with… 与??比较

He’s really done better as compared with last term.

Language Points
8. rather than 而不是,宁可??也不愿 Eg. He would choose Sunday rather than Saturday. I would like to go with you rather than stay at home. 9. prefer to do… rather than do… 情愿??而不?? be replaced by be read online 被 ?? 所替代 在网上阅读

Make notes to complete the timeline.

Printing w

as developed greatly. Books were produced quickly. More people learned to read. Knowledge and ideas spread quickly
2,000 years ago today

replace d?

11th century

In the future

Paper was first created. Paper was made of silk... Books were made by hand. Few people learned to read

Information can be received online. can be downloaded. can be kept on CD-ROMs.

Answer the questions
1.Why were books expensive and rare before the invention of printing? Because books could only be produced one at a time by hand. 2.Why did ideas spread more quickly when books became cheaper? Because more people learned to read. 3.What can we use to get information? We can use computers,books,etc.

Answer the questions. Use the words in the box :

create, develop, hold ,keep, produce, receive, spread 1. When was paper first created ? When do you think books were first created ? Paper was first created about 2,000 years ago. I think books were first created after the 19th century. 2.Were books produced by hand or by machine at first?
By hand. 3. What was the paper held against? Paper was held against a wooden block.

Answer the questions Use the words in the box : create, develop, hold ,keep, produce, receive, spread 4. When was printing developed ? At the beginning of the 11th century.

5. What can be kept on CD-ROMs?

Information. 6. What can be received online?
Information. 7. How were ideas spread in the past? How are ideas spread today? Ideas spread by reading books in the past and today they spread by using computers on the Internet.

1.It’s hard to imagine life without paper or print

because…
2.Books could only be produced one at a time because…

3.Books could be produced more quickly and cheaply
after the 11th century because… 4. We may not need books in the future because… 5.Books will never be replaced by computers because…

How to give reasons / results as a result because so so that 1. What was the result of books becoming cheaper? Books became cheaper. As a result, more people learned to read. 2. Why must printing be thought of as one of the most important inventions? Printing must be thought of as one of the most important inventions because it made books produced quickly.

How to give reasons / results as a result because so so that 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.

How to give reasons / results

as a result because so so that 4.What development will mean that books won’t be needed in the future?
Computers are used and newspapers and magazines can be read on-line so that books

won’t be needed in the future.

Rewrite the notes in full sentences today in the future 2,000 years ago 11th century

About 2,000 years
ago, paper was first

created. As a result,
more people…

Practice ( )1. —What should we do first if we want to
develop our village?

—A lot of new roads_____ I think .
A. must build C. must

be built B. have to build D. have built

( )2. I don’t think sixteen-year-olds should ____ to go to bars .(酒吧) A. allow C. be allowed B. be allowing D .not allow

( )3. This kind of food ____in a cool place . A. keep C. must be kept B. must keep D. may kept

( )4. —“What beautiful flowers in the garden !”
—“Yeah ! They _____ here last year.” A. planted B. were planted

C. are planted

D. will be planted

(

)5. This book is made _______ paper and paper

is made _____ some other things. A. of;of C. from;of B. of;from D. from;from

( )6. Our classroom A. must clean C. must be cleaned

every day by us. B. must cleaned D. must be cleaning

( )7. Because of the dry weather, lots of water_____ to
water the crops.

A. must carry
C. must be carried

B. mustn’t carry
D. be carried

将下列句子改为被动语态 1 Everyone in my class has read the book. The book has been read by everyone in my class. 2 They have discussed the book on TV.

The book has been discussed by them on TV.
3 Thousands of people have bought it.

It has been bought by thousands of people.

Homework 1.Read the text and the new words.

2.Finish the workbook exercises.

He who does not advance loses ground. 逆水行舟,不进则退。


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