3.1 Unit 3 Computers Reading(课件)

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名称 3.1 Unit 3 Computers Reading(课件)
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版本资源 牛津深圳版
科目 英语
更新时间 2022-10-25 08:52:48

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(共39张PPT)
Unit 1 Computers
  Reading
牛津深圳版 八年级上册
1
课堂导入
Look and say
What are these
abacus
calculator
A laptop
PC
We can use it to……
What can we use a computer to do
Free talk
send e-mails
Listen to music
play computer games
We can use it to……
What can we use a computer to do
chat
shop online
have a meeting on line
We can use it to……
What can we use a computer to do
Operate railways
fly planes and spaceships
control robot
chat
shopping online
type
calculate
play music
Draw pictures
Search information
watch movie
have a meeting online
play games
What can we do
with computers
How much do you know about computers Look at the photo below and complete the sentences with the correct names.
2
课堂活动
A What do you know about…
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 __________.
monitor
keyboard
main unit
mouse
speakers
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.
B Before you read



×
Computer Facts
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.
What can we do with computers
We can use computers to calculate. They can calculate at a faster spend 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. 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.
Task 1. Read the first part of the article and complete the table below.
Smaller and better
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.
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.
2.What job may computers be able to do better one day
The job of a doctor.
3.What problem will we probably face if computers can do all our jobs
We may have nothing to do.
1.Is a computer cleverer than you Why
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.
C Vocabulary
tiny
depend on
In addition
operate
C2 Complete the conversation below with the words from the box.
expensive
speed
In addition
depend on
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
D comprehension
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.
Retell the story
Computer facts
Computers are becoming smaller and better. We can use computers to calculate. They can calculate faster 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. But computers are not cleverer than us because our brain can produce new ideas.
Do you depend on computers a lot in your daily life?Give examples.
Do you agree that computers will be able to do all our jobs in the future?Give reasons.
Discuss and answer the questions below with your classmates.
Yes. I depend on computers a lot in my daily life. Usually, I use a desktop to send emails, chat with my friends, watch films and search for information online. In addition, the TV, the washing machine and the rice cooker in my home all have tiny computers in them.
3
课堂小结
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.
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
4
课堂训练
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
谢谢
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