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Unit 3 Computers. 正安二中 袁先忠. monitor. screen. host computer. speaker. keyboard. mouse. What do they have in common?. A calculator. An abacus. A desktop. A notebook computer. digital camera. a laptop. palmtop. Reading: Who am I?.

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slide1

Unit 3 Computers

正安二中 袁先忠

slide2

monitor

screen

host computer

speaker

keyboard

mouse

slide3

What do they have in common?

A calculator

An abacus

A desktop

A notebook computer

slide4

digital camera

a laptop

palmtop

slide5

Reading:

Who am I?

slide6

Listen to the tape and answer these questions.

1 Who am I?

A computer.

2 Who was the first person to invent the earliest computer?

3 Who was the next important person to design computers?

Charles Babbage

Alan Turing

slide7

Scanning

timeline

1642: The computer began as a calculating machine.

1822: the Analytical Machine was built by Charles Babbage.

1936: Alan Turing wrote a book to describe how computer could be made.

1960s: Computer had new transistors and became smaller.

1970s: Computers were brought into people’s homes.

Now: Computers connect people all over the worldtogether.

slide8

The development of computers:

Analytical machine

Universal machine

Internet

Artificial intelligence

Computer

Calculating machine

slide9

Useful phrases

calculating machine

Analytical machine

card with holes

technological revolution

universal machine

artificial intelligence

go by

by internet

human race

计算器

分析机

穿孔卡

技术革命

万能机,通用机器

人工智能

走过,过去

通过网络

人类

slide10

The development of computers:

Analytical machine

Calculating machine

Universal machine

Internet

Artificial intelligence

Computer

slide11

Intensive reading:

Underline the phrases &sentences that you think are important

slide12

Star sentences

P1 L2 I followed instructions from cards with holes.

P1 5 Earlier I was not very big, but then I became huge.

P1 L6 However, people thought I was simple-minded until they discovered I had “artificial intelligence.”

我执行穿孔卡的指令

早些时候我并不是很大,但是后来我变得非常大

可是,人们认为我头脑简单, 直到发现我有人工智能时,

他们才不那么想了。

slide13

P1 L8 As the years have gone by, I have been made smaller and smaller.

P2 L1 There were times when my size was totally changed.

P2 L3 But I was always so lonely standing there by myself,until in the early 1960s,they gave me a family connected by a network.

随着岁月的流逝, 我被做得越来越小了

有段时期我的体积完全变了

但是我总是孤孤单单地站在那里,直到60年代初, 人们才

给了我一个用网络连接的家庭。

slide14

Summary: what have we learned?

1.some words about computers.

2 the development of computers

3 some scientists relating to computers.

slide15

Discussion

Advantages and disadvantages of the computers.

slide16

advantages

we can

communicate with friends

listen to the music

see films & watch news

play games

do shopping

save a lot of time

do a lot of useful things

Disadvantages

Some people especially the teenagers abandon (沉迷于) themselves to the computer games and chatting on the Internet. As a result, they have little time to study .

Some people use the computer wrongly

slide17

Homework

Recite Para one

slide18

other useful words and expressions about computer

Network 网络

Website 站点

Program 程序

Virus 病毒

Hacker 黑客

Download 下载

Software 软件

Hardware 硬件

Up load 上传

Home page 主页

Password 密码

Desk top 桌面

User name 用户名

Click 点击

slide19
有一些共同之处 have something in common
  • 头脑简单的 Simple-minded
  • 心不在焉的 absent-minded
  • 意志坚强的 strong-minded
  • In a way:to a certain extent 在某种程度上
  • In the way: 造成阻碍
  • After all 毕竟;终究;归根结底
  • Watch over : take care of 照料;照管。
  • Wander v. 游荡;闲逛。He was wandering aimlessly.
  • Wonder v. 感到好奇/n 奇观 I wonder who he is.
learning about language
Learning about language

EX.2

revolution

network

went by

totally

truly

simple-minded

Anyway

deal with

EX.1

1 totally

2 revolution

3 Artificial intelligence

4 birth

5 simple-minded

6 go by

7 deal with

8 network

9 truly

10 anyway

slide21

Discovering useful structures

As the years have gone by, I have been made smaller and smaller.

my family and I have been used by billions of people

to deal with Information------

I have truly been built to serve the human race------

现在完成时的被动语态(have/has + been+过去分词)

slide22

__

__

Someone has told me the sports meet might be put off.

We have brought down the price.

I have been told the sports meet might be put off.

__

__

The price has been brought down.

slide23

Great changes______ in the city, since the reform and opening to the outside world, 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

slide24

道路已经修好了。

The road has been repaired. 

这本书已被译成英语。

This book has been translated into English.

slide25

has been explored

1.This part of the seabed ______

(explore) many times.

2.Much useful information about these planets _____

_ (collect) since 1971.

3.Much parking space in cities _____

(save) by using small cars.

has been collected

has been saved

slide26

5.They say that some icebergs in the Far South ___________(pull) to Kuwait for drinking purposes in the future.

will be pulled

6.These questions ____________ (discuss) at the

next meeting.

will be discussed

slide27

1 I know Mr. Brown; we___ to each other at an international conference.

A are introduced B have been introduced

C were introduced D had been introduced

2 Have you ever__ to the exhibition which __ for three

weeks?

A gone; has been shown B visited; shown

C been; has been on show D went; lasted

3 The boy whom you lent the bike to __ by a car.

A hit B be hit C having been hit D was hit

4 I want to buy that kind of cloth because I __ the cloth __ well.

A have told; washed B have been told; washes

C was told; washed D have been told; is washed

B

C

D

B

slide28

5 The mayor of Beijing says 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

6 The bridge___ away by floods and the fields___ by water.

A had been washed ; were covered

B has been washing ; is covered

C had been washed; had covered

D has been washed; is covering

7 It has decided that we’ll go on a study trip to London next

summer.

8 How long has this book been bought?

C

A

It has been decided

How long ago was this book bought?

using structures
Using structures
  • It has been reported that children will be off free education.

It has been reported that free education will be offered to children.

  • It has been said that we will be offered the latest computer science course book.

It has been planned that the latest computer science course book will be offered to us.

  • I have been told by Peter that I will be lent his notebook computer for a week.

I have been told by Peter that his notebook computer will be lent to me for a week.

translation
Translation

1 This type/kinds of computer has been specially designed for teachers and students.

2 The needs of the teachers and students have been greatly considered.

3 With the help of computer, you may not find it hard to deal with and share information.

4 Besides, you can easily communicate with people all over the world by Internet.

5 This will cost a lot of money, but after all, it is worth buying a computer for every teacher.

6 She uses the computer so well that she doesn’t often write with a pen and paper.

7 If a new situation arises, they will make up new programmes.