Unit 3 Language in use

Paper and printing have been used for ages. The battery hasn’t been changed for a couple of months. Has it been published yet? 现在完成时的被动语态 : have/has (not) been + 过去分词

Information can be kept on CD-ROMs. Books could only be produced one at a time. Can books be replaced by computers? 情态动词的被动语态 : 情态动词 (not)+ be + 过去分词

时态被动语态结构 一般现在时 一般过去时 现在进行时 过去进行时 am/is/are + done was/were + done am/is/are being + done was/were being + done

一般将来时 过去将来时 现在完成时 过去完成时 shall/will be + done would be + done have/has been + done had been + done

A recorder is used in our English class every day. recorder English class every day

use…for often play Football is often played all over the world. A camera is used for taking photos.

rob yesterday send up last year A man-made satellite was sent up into space last year. A bank was robbed yesterday.

must plant every year cover with in a few years’ time A lot of trees must be planted every year. The ground will be covered with trees in a few years’ time.

should send to right now a tall give soon They should be sent to the hospital right now. A talk will be given soon.

dig now The earth is being dug now. eat up already The food has been eaten up already.

compass paper gunpowder printing Four great inventions in ancient China

printing Bi Sheng Song Dynasty for a long time make books produce quickly

Listen and tell whether the statement is true or false. 1.They are in British Library.( ) 2.Today, a printer can produce hundreds of books in a day. ( ) 3.One book might take many months to produce.( ) 4.Books can be downloaded on to computers in any library.( ) 5.Some books are downloaded on to computers because they are too ancient to hold.( ) T F T F T

1. Each choose an invention (e.g. the computer, the television or the car). 2. Research how your invention has been developed, and make notes about what you find out.

eg: The old kind of bicycle was big and heavy. It couldn’t be ridden very fast. With the development of( 随着 … 的发展 ) the technology, it has a big improvement （很大 的改进）. The new kind of the bicycle is smaller and lighter. Some of them can even be folded ( 折叠）.And the mountain- climbing bicycles are much lighter and can be ridden in a higher speed.

Discuss the improvement of inventions

Read the passage E-book, and answer the questions. ( )1. E-books were invented_______. A. in 1990 B. for ten years C. in the 1990s D. twenty years ago C

( )2. Which of the following is NOT mentioned in the passage? A. If you have an e-book, you can write on it. B. We should buy more e-books to save paper. C. E-books will be more convenient. D. Maybe there will be more e-books in the future. B

( )3. Though e-books are far more advanced than paper books, not many people buy them because ___. A. they’re hard for people to use B. they’re not as cheap as paper books C. there aren’t enough e-books D. people don’t know where to buy them B

( )4. The most advanced e-book today is about ____kg. A B C D ( )5. What will the future e-books be like? A. They will be more popular. B. They will be like paper books. C. They will be more expensive. D. They will be thicker. D A

Write down your discussion on your composition book.

Complete the sentences with the correct form of the words. 1. I think one day books may ___________ (place) by computers. 2. My bike _______ (leave) at school, so I have to take the bus to school today. 3. The battery __________________ (charge) yet. How can I use my recorder? was left hasn’t been charged be replaced

4. Paper should not _________ (throw) away. 5. Books and CDs can ___________ (borrow) from the library. 6. I’ve bought an MP3 player—and about 1,000 songs have _______________ (download) onto it! be borrowed be thrown been downloaded

7. Has the pen ____________ (mend) yet? I need to write my article with it. 8. What have ______________ (turn on)? The radio? been turned on been mended

1. what/ use/ to make paper since the 19th century? What has been used to make paper since the 19th century? a) Wood. b) Silk. c) Cotton. Work in pairs. Complete the quiz questions and choose the correct answer.

2. where/ the story of Romeo and Juliet / set? Where is the story of Romeo and Juliet set? a) In New York. b) In Athens. c) In London.

3. where/ the world’s oldest paper/ discover? Where was the world’s oldest paper discovered? a) In India. b) In China.c) In Egypt. 4. how long/ computers/ use? How long have computers been used? a) For less than 50 years. b) For 50 years. c) For more than 50 years.

Make questions and write answers. what / shouldn’t /do / with batteries? (throw away) --What shouldn’t be done with batteries? --They shouldn’t be thrown away.

1. what / can / use / to make paper? (many things) What can be used to make paper? Many things can be used (to make paper).

2. what / might / use / to replace books one day? (computers) What might be used to replace books one day? Computers might be used (to replace books one day).

3. where / can / music / keep? (on MP3 players) Where can music be kept? It can be kept on MP3 players.

Complete the passage with the correct form of the words in the box. From about 500 BC, pens _________ for writing. The feathers of large birds ___________ and dried. The point of each feather was sharpened. clean develop introduce invent produce spread use write were used were cleaned

Then people used them to write with ink. Many famous works, such as Shakespeare’s plays, ___________ with these pens. Then, in the 18th century, a pen with a steel writing point ___________. Only a few words could ___________, however, before the writer had to fill the pen with ink again. were written was invented be produced

Many years later, the fountain pen ____________ from these early pens. In 1950, a European invented the ballpoint pen. The popularity of writing ______ quickly with the ___________ of the ballpoint pen. Even today, ballpoint pens are much less expensive, compared with fountain pens. spread was developed introduction

Listen again and answer the questions. 1. Why did it take a long time to produce a book in ancient times? Because each one was written by hand. 2. Why do many old books have to be kept away from the public? Because they have to be kept safely away from danger.

3. How has the invention of the computer helped to make these books easier for people to read? The ancient books are downloaded onto a computer so everyone can read them. 4. How can the pages of a book on a computer be turned? By pressing a button.

Complete the sentences with the phrases in the box. 1. Could you imagine a digital image of Yao Ming on the wall __________ a poster? rather than by hand for ages from now on rather than

2. Things made _______ are usually more expensive than those produced in factories. 3. I haven’t seen my best friend _______! 4. We’re using too much paper. ____________, I’m going to read all my magazines online. by hand From now on for ages

eg: The old kind of bicycle was big and heavy. It couldn’t be ridden very fast. With the development of( 随着 … 的发展 ) the technology, it has a big improvement （很大 的改进）. The new kind of the bicycle is smaller and lighter. Some of them can even be folded ( 折叠）.And the mountain- climbing bicycles are much lighter and can be ridden in a higher speed.