Unit 3 Computers Reading 课件（共37张PPT，内嵌部分音频）

英语（牛津版）
八年级 上册
English
Computers
Reading
Unit 3
Do you have a computer at home?
Computers are less expensive now.
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{5C22544A-7EE6-4342-B048-85BDC9FD1C3A}￥3,600
Brainstorm
Computer
What do you usually do with computers?
type
calculate
What do you usually do with computers?
monitor
keyboard
mouse
speakers
main unit
1 The _________ shows words and pictures.
2 We use the _________ for typing.
3 The “brain” of a computer is in the ___________.
4 We move the _________ to control the computer.
5 We hear sound from the __________.
How much do you know about computers? Look at the photo below and complete the sentences with the correct names.
01
Look at the pictures, the title and the sub-headings of the article on page 34. Then tick (?) the facts that the article probably talks about.
1 Computers are getting smaller and better.
2 Computers can do important jobs like flying planes.
3 Computers may work as doctors.
4 Computers are expensive.
Before you read
02
While reading

Finish 5 tasks
A sub-heading usually tells us the topic of the paragraph(s) below it.
sub-headings
Task 1. Read the first part of the article and complete the table below.
Smaller and better
{7DF18680-E054-41AD-8BC1-D1AEF772440D}The first computers in the 1940s
Computers nowadays
becoming
Example
Conclusion
bigger than cars
smaller and better
There is probably a tiny computer inside your TV or washing machine.
You depend on computers more than you realize.
{7DF18680-E054-41AD-8BC1-D1AEF772440D} calculate
Advantages

Examples
calculate at a faster speed than we can
almost never give wrong answers
type and draw things
do important jobs
fly planes
operate railways
Task 2. Read the second part of the article and complete the table below.
What can we do with computers?
fly spaceships
Task 3. Read the third part of the article and answer some questions.
Is a computer cleverer than me?
No, it isn’t. Because the human brain can produce new ideas but computers cannot.
What job may computers be able to do better one day?
The job of a doctor.
What problem will we probably face if computers can do all our jobs?
We may have nothing to do.
Is a computer cleverer than you? Why?
Computer facts
Part 3
Part 2
Part 1
The __________ of computers in different times
The __________ of computers in daily life
The __________ between human beings and computers in the future
sizes
uses
Relationship
Task 4 Complete the outline of the article.
Task 5. Find some examples in each part of the article.
Look at the pictures, the title and the sub-headings of the article on page 35. Then tick (?) the facts that the article probably talks about.
?
?
?
1 Computers are getting smaller and better.
2 Computers can do important jobs like flying planes.
3 Computers may work as doctors.
4 Computers are expensive.
03
Smaller and better
In the 1940s, the first computers were bigger than cars. Now computers are becoming smaller and better.
Some computers are tiny. You may be unaware of them. There is probably one inside your TV or washing machine. You depend on computers more than you realize.
Computer facts
Vocabulary
04
What can we do with computers?
We can use computers to calculate. They can calculate at a faster speed than we can and almost never give wrong answers. We can also type and draw things with them. In addition, computers can do important jobs like operating railways and flying planes and spaceships.
Is a computer cleverer than me?
The answer is “No”. Your brain can produce new ideas but computers cannot. However, one day computers may be able to do a better job than
human beings. For example, they may be better than doctors at doing their job.
What will happen to us if computers can do all our jobs? Will we have nothing to do? Computers may change our lives, but will they make them better?
1 If something is very small, it is _____________. (line 5)
Some young people always need help from their parents. They should learn to _____________ themselves. (line 8)
We had fun and learnt something new as well. We had a good time. _____________, we learnt a lot. (line 14)
When we make a machine work, we _____________ it. (line 16)
C1 The words in italics explain the meanings of some words on page 35. Find these words to complete the sentences. Change their forms if necessary.
operate
In addition
depend on
tiny
05
C2 Complete the conversation below with the words from the box.
speed
In addition
depend on
expensive
S1: We can do many things with computers in our daily life.
S2: For example?
S1: We can _________, _________ and ________________ with them.
S1: There may be tiny computers in your home.
S2: Where, for example?
S1: Inside your _________ or ________________.
2
1
D1 Complete the answers with the examples from the article.
TV
washing machine
calculate
type
draw things
06
S1: Computers can do some important jobs.
S2: For example?
S1: They can______________ and _____________________.
S1: One day, computers may be able to do a better job than
human beings.
S2: For example?
S1:They___________________________________________.
4
3
operate railways
fly planes and spaceships
may be better than doctors at doing their job.
D2 Answer the questions below in complete sentences.
What were the first computers like?
_________________________________________________
2. Why are we unaware of some computers?
_________________________________________________
3 Are computers cleverer than you and me?
Why or why not?
_________________________________________________
_________________________________________________
They were bigger than cars.
Because they are tiny.
No, they aren’t. Because our brains can produce new ideas
but computers cannot.
1，We have learned about the development of computers ,and the
basic use of computers
2, We have grasped the new words and expressions in the reading.
order?? n.订货;订购P33
compare?? v.比较；对比P33
monitor?? n.(计算机)显示器P33
speaker?? n.扬声器P34
main unit??? n.(计算机)主机P34
keyboard??? n.(计算机或打字机的) 键盘P34
mouse??? n. (计算机)鼠标P34
type?? v.打字P34
brain?? n.脑P34
New words
control?? v.操纵,控制 (机器或系统等) P34
expensive??? adj.昂贵的;价格高的P34
tiny?? adj. 极小的;微小的P35
depend?? v.依靠;依赖P35
﹡calculate?? v.计算P35
speed?? n.速度P35
operate?? v.操作；控制P35
railway?? n.铁路系统P35
work as 从事……工作P34
(be) unaware of 没意识到;未察觉P35
depend on 依靠P35
in addition 除……以外(还) P35
*one day 总有一天；某一天
*be able to 能够
*change one’s life 改变某人的生活
*get on the Internet 上网
短 语
1. compare v. 比较；对比
compare A with B. 把A 和B做比较。
他比较了这台手机和那台手机的价格。
He compared this mobile phone with that one in price.
compare …to … 把……比作……
其中的to后接名词或者代词作为比较的对象，该短语含有比喻的意味。
我们经常把老师的工作比作蜡烛。
We often compare the teacher’s work to a candle.
Language points
2. work as 从事……工作
我想要从事作家的工作。
I want to work as a writer.
你想要从事老师的工作吗？
Do you want to work as a teacher?
3. You may be unaware of them.
你有可能忽略它们的存在。
(be) unaware of 没意识到；未察觉
我们没有察觉到危险。
We are unaware of danger.
我没意识到他来了。
I was unaware of his coming.
4. You depend on computers more than you realize.
你对电脑的依赖程度比你意识到的要深得多。
depend v. 依靠；依赖
depend on 依靠
当我们长大了，我们不能在依靠父母了。
When we grow up , we can’t depend on our parents any more.
5. They can calculate at a faster speed ... 它们能以比较快的速度进行运算……
speed n. 速度
at a speed of ... 以……的速度
speed 常与介词at 或with 搭配使用。一般来说，speed前面有冠词的话，常用介词at；否则就用with。例如：
请以安全的速度驾驶。
Please drive at a safe speed.
他是一个速度快的足球运动员。
He is a football player with good speed.
6. In addition, computers can do important jobs like operating railways and flying planes and spaceships.
除此之外，电脑还能做重要的工作，例如 操控铁路系统，驾驶飞机和宇宙飞船。
(1) in addition 除……以外(还)
相当于besides，两者可以互换使用。in addition 在句中常单独使用，放在句首时常用逗号与句子隔开。例如：
他钢琴弹得好，除此之外，他还能唱歌。
He can play the piano well. In addition / Besides, he can sing.
7. What will happen to us if computers can do all our jobs?
如果电脑能做我们所有的工作，我们将会怎样？
happen to 发生在……身上
happen也可以单独使用,意为“(偶然)发生”，常用名词或代词作主语，可与take place 互换使用。如：
故事发生在1990年6月。
The story happened / took place in June, 1990.
昨天他出了车祸。
A traffic accident happened to him yesterday.
8. ... but it works at a much faster speed than my old one. ……
但是它运作起来速度比我的旧电脑快得多。
much 在此句中用作程度副词，修饰faster。
much 常放在形容词或副词比较级的前面，表示比较级的程度，一般翻译为“……得（的）多”能修饰比较级的程度副词还有
（按程度大小排列）：
a little / a bit (一点) still /even (更) far / much / a lot (……得/ 的多)
例如： a little taller 高一点 still / even taller 更高
far / much / a lot taller高得多
我妈妈每天早上起床比我爸爸早得多。
My mother gets up earlier than my father every morning.
一、根据句意和所给的首字母填空。
1.The dress is too e_______. I don’t have enough money to buy it.
2. Humans use their b_______ for thinking.
3. It’s not good for parents to c_______ their children with other children.
4. The plane travels at a high s_________.
xpensive
rains
ompare
peed
二、选择最佳答案填空。
( ) 1. The train is running ____ a speed of 200 km/h.
A. at B. with C. on D. in
( ) 2. Travelling by plane is fast. ____, it’s more comfortable.
A. Above all B. In fact
C. In addition D. In the way
( ) 3. We all live on Earth. Let ’s make it even ____.
A. well B. better C. good D. nice
( ) 4. ____ a spaceship is a difficult job.
A. Operating B. Operator C. Operation D. Operate
A
C
B
A
三、根据中文意思完成句子。
1.你不能依赖别人来帮助你。
You can’t _____ _____ others to help you.
2. 那时他没意识到危险。
He _______ ______________ _________ the danger at that time.
3. 他现在在这个公司担任经理。
He _____ _____ a manager in this company now.
4. 他很聪明。除此之外，他还很友好。
He is very clever. ____ _________,he is very friendly.
depend on
was unaware of/ did not realize
works as
In addition