课件25张PPT。 Unit3
ComputersReadingWhat do you know about……?keyboardmousemain unitspeakermonitorAbout computers1. 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 ____________.monitorkeyboardmain unitmousespeakerBefore you readRead the following and tell whether it is true or false.
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.(√ )(√ )(√ )( X )Reading and note1. in the 1940s
在20世纪四十年代
My father was born in the 1950s.
我父亲出生在五十年代。
2. smaller and bigger
又小又好
比较级：cheaper and better
又便宜又好3.be unaware of =don’t know
不知道
He was unaware of the danger ahead.
=He didn’t know the danger ahead.
他不知道前面的危险。
be aware of 知道，意识到
我意思到妈妈生气了。
I ______________my mother’s anger.am aware of4. You depend on computers more than you realize.
depend on computers 依赖电脑
You should depend on yourselves .
你应该依靠你自己了
more than 超过
realize =be aware of 意识到
I realize that he is angry .
我意识到他生气了。
5. What can we do with computers ?
我们可以用电脑来做什么呢？
do with 处理
What can we do with this money?
我们该如何处理这笔钱呢？
_______can we do _____the trouble?Whatwith6. We can use computers to calculate.
use sth to do sth 用某物去做某事
We use pens to write .我们用笔来写字
7. They can calculate at a faster speed.
他们能用更快的速度来计算。
Plane can travel at a faster speed than train.
飞机比火车以更快的速度飞行。
8. In addition , computers can do important jobs like operating railways and flying planes and spaceships.
In addition 另外
In addition , he is good at painting .
另外，他还擅长画画。
like 在这里是一个介词， “像”的意思，后面动词用动名词形式。
He likes sports very much like ________(play) basketball.playing9. Your brain can produce new ideas……
produce new ideas 想出新的主意
10. however 然而，但是
Computers can do a lot of jobs better than humans. However , they can’t produce new ideas.
电脑做很多工作都比人做得好，但是他们不能产生出新的想法。11.For example, they may be better than doctors at doing their job.
be good at doing sth 擅长做某事
be better at doing sth 比。。。更加擅长做某事
Computers are better at calculating than humans .
电脑比人类计算的更好。12. What will happen to us if computers can do all our jobs?
happen to 发生
What happened to him last night?
昨晚他发生什么事了？
13. Will we have nothing to do?
have nothing to do 无所事事
have something to do 有事要做
C. Vocabulary
C1. Fill in the blanks with the right words. Change their forms if necessary.
1. If something is very small, it is ______(line 5)
2. Some young people always need help from their parents. They should learn to__________
themselves. (line 8)
3. We had fun and learnt something new as well. We had a good time.________, we learnt a lot (line 14)tinydepend onHowever4. When we make a machine work, we _________it.(line16)
C2. Complete the conversation below with the words from the box.
Mark:I bought a new computer.
Helen: Why?
Mark: I bought my first computer five years
ago. I used it almost every day,
and it became really slow.
Helen: I see. So how’s your new computer?
operatedepend on , expensive, in addition, speed Mark: It was really __________, but it works at a much faster _________ than my old one. ___________, it has a larger monitor.
Helen: I also ___________my computer a lot these days. I use it to write reports, and to get on the Internet too. My computer works well, so I am not going to buy a new one expensivespeedIn additiondepend onD. Comprehension
D1 Read the article on Page 35 and complete the answers with the example from the article.
1. S1: There may be tiny computers in your
home.
S2: Where , for example?
S1：Inside your TV or washing machine.
2. S1: We can do many things with
computers in our daily life.
S2: For example?
S1: We can ________, ________and
_________with them.
3. S1: Computers can do some important
jobs.
S2: For example?
S2: They can _________________and ____________________calculatetypedraw thingsoperate railwaysflying planes and spaceships4. S1: One day, computers may be able to do
a better job than human beings .
S2: For example?
S1: They _________________________
___________________may be better than doctors at
doing their job.D2 Read the article again and answer the questions below in complete sentences.
1. What were the first computers like?
_____________________________
2. Why are we unaware of some computers?
_______________________________
3. Are computers clever than you and me? Why or why not?
__________________________________They were bigger than cars.Some computers are tiny.No, because computers can’t produce
new ideas ,but we can.Discussion How do computers help us in our daily life? 短语集中营1. be unaware of 没有意识到
2. depend on 依靠
3. more than 超过
4. do with 处理
5. use sth to do sth 用某物去做某事
6. at a faster speed 以更快的速度
7. in addition 另外 8. operate railways 操控火车
9. produce new ideas 产生新的主意
10. be better at doing 更好的做某事
11. happen to 发生
12. have nothing to do 无所事事
13. change our lives 改变我们的生活
Thank you !课件29张PPT。 Unit3
ComputersWordsn.
order 订货，订购
monitor 显示器
speaker 扬声器
main unit 主机
keyboard 键盘
mouse 鼠标
brain 脑
speed 速度
railway 铁路系统
company 公司
price 价格
total 总共
inch英寸
v.
compare 比较
type 类型
control 控制
depend 依靠v.
calculate 计算
operate 操作
sell 卖出
adj.
expensive 昂贵的
tiny 极小的，极微的
popular 受欢迎的phrases
work as 从事。。。工作
(be) unaware of 没意识到，未觉察
depend on 依靠
in addition 除。。。以外
grand total 总计，共计
look forward to 盼望order
n. 〔C〕 订货， 订购
短语：place an order 下一个订单
He placed an order for ten computers.
他下了一个订单订购十台电脑。
May I ______your order now?
我可以为你点菜了吗？
take
n. 〔U〕秩序
短语：keep order 维持秩序
in good order 整齐
in bad order 不整齐
n. 〔C〕命令
Soldiers should obey the orders.
士兵应该遵从命令。
v. 命令
短语：order sb to do sth
命令某人去做某事
Miss Li ordered him __________(clean) the room. to cleancompare
v.比较
compare A with B. 把A 和B做比较
He compared this mobile phone with that one in price.
他比较了这台手机和那台手机的价格。
Compare these two cities , and you will see which one is better.
比较一下这两个城市，你会发现哪一个更好的。
compare …to …意为“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
We often compare the teacher’s work to a candle.
我们经常把老师的工作比作蜡烛。
If you compare the red bike______the blue one , you will see that the blue one is better.
Teachers often compare children _________the flowers .
withtocompare—comparison
comparison n. 比较
make a comparison between
He made a__________(compare) between Shenzhen and Hongkong.
他把深圳和香港做了比较。
comparisontype v. 打字
He can type 65 words a minutes.
他每个小时可以打65个字。
He has to finish the _______(type) in five minutes.
他必须在五分钟内打完字。
typingcontrol v. 控制
You should not eat so much. You have to control your weight.
你不应该吃那么了， 你必须要控制自己的体重了。
control n. 控制
out of control 失控
The plane was out of control. It rushed into the sea at last.
飞机失去控制了。 最后冲向了大海expensive adj. 昂贵的
This computer is more expensive than that one.
这台电脑比那台电脑贵。
￥ 6000￥ 8000tiny adj. 极小的，微小的
同义词：small
There is a tiny boat on the sea.
海面上有一艘小船。
The words are too tiny . I can’t see it clearly
那些字太小了，我看不清楚了
depend v. 依靠
When we grow up , we can’t depend on our parents any more.
当我们长大了，我们不能在依靠父母了。
We depend on computers much in our daily life.
在我们的日常生活中，我们很依赖电脑。speed n.速度
The car is running at a high speed on the highway.
小车正在高速路上以高的速度行走着。
at a speed of 以。。。的速度
The car was travelling at a speed of 50 miles an hour.
那辆汽车以每小时50英里的速度行驶。operate v.操作，控制
Can you operate this machine?
你会操控这台机器吗？
operate v. 动手术
The doctor is operating on his leg.
医生正在给他的大腿做手术。
operation n.手术
do an operation on …给。。。做手术
railway n.铁路系统
railway station 火车站
I got a job on the railways.
我在铁道部门得到一份工作了。company n. 公司
IBM is a big computer company.
Which company do you work for?
你在哪家公司工作？
price n. 价格
What is the price of this mobile phone?
=___________is this mobile phone?
这部手机的价格是多少呢？
He sold the house at a high price.
他以很高的价格把房子卖出了了。
at a price 以很高的代价
His success comes at a price.
他的成功来自不易。How muchtotal n.合计，总额
The total comes to 86 yuan.
总共要86元。
in total 总共
We need 35 chairs in total.
我们总共要35张椅子。
inch n.英寸
1 inch=25.44 mm
This laptop is 10 inches.
这台手提电脑是十英寸。sellsell –sold-sold v. 出售
We sold 10 computers of this type yesterday.
昨天我们卖出了十台这种类型的电脑。
sell sth to sb / sell sb sth.把某物卖给某人
The young man is selling his car to his friends.
=The young man is selling his friends his car
这个年轻人正在向他的朋友们卖车。
popular adj.受欢迎的
This type of computers are more popular than that one.
这款电脑比那台受欢迎。
He likes to sing popular songs.（pop songs)
他喜欢唱流行歌曲。
Be popular with 受。。。欢迎
This book is very popular with the young people .
这本书很受年轻人的欢迎。巩固练习
1. I don’t know how the computer__________
(控制）.
2. We drove at a ________of 60 kilometers an hour.
3. The animals are kept in _________(小的）cages and can hardly move at all.
4. If I want to write fast, I must learn to ________(打字）。
5. We shouldn’t __________(依靠）too much on our parents.
operatesspeedtinytypedepend6. This mobile phone is very e__________.
7. What is the p________of this CD player?
8. Miss Li is very p__________with his students, because her class is very interesting.
9. His father can c__________this machine .
10. Our b_______control our thoughts .xpensive riceopular ontrolrainn.
order
monitor
speaker
main unit
keyboard
mouse
brain
speed
railway
company
price
total
inch
v.
compare
type
control
dependv.
calculate
operate
sell
adj.
expensive
tiny
popularphrases
work as
(be) unaware of
depend on
in addition
grand total
look forward to
Thank you !课件6张PPT。 Unit3
Computers writing An email about monitorsWarming up!
Can you describe your own monitors to us?
How big ?
How much?
How heavy?
How often do you use it?Top office found that they did not have any C4091 monitors, so Tom Green, a salesman, wrote an email to Mabel Wang. Look at the table and complete Tom’s email to Mabel.C4091C4095Big expensive light popularDear Ms Wang,
You ordered a C4091 monitor yesterday. I am
afraid we do not have any now. However, we
have another model –the C4095. The C4095
is a 19-inch monitor, so it is bigger than the
C4091_______________________________
_____________________________________
____________________________________The C4095 is 1,298, so it is a little more expensive than the C4091. The C4095 is lighter than the C4091. What’s more , it is more popular than the C4091, because we have sold 50 ones of the C4095 this month.
Would you like to order a C4095 ? I look forward to your reply.
Best wishes,
Tom Green
Thank you !课件25张PPT。 Unit3
Computers GrammarThe comparative of adjective 形容词比较级Form the comparative of adjective
比较级的形式My brother is taller than me .This one is cheaper than that one.This film is more interesting than that one.Work out the rule To form the comparative of adjectives , we often add ______to short adjectives and use ________with long adjectives
We often use ________after the comparative of adjectives.ermorethanComplete the conversation below and on page 40 with the comparative of adjectives.
Salesman: Can I help you, sir?
David: Yes, I need a suitcase . Can you tell me
about these two?
Salesman: Sure. The red one costs ￥2,500, and
it’s made of leather.
David: I see. The red one is
______________than the black one.
What about the weight?
Which one is ____________? more expensiveheavierSalesman: The black one. It is made of
plastic(塑料）. Try them, sir.
David: You are right. The red one is
_______________ than the black one,
and it’s _________ than the black one.
Salesman: Do you have a lot of things to carry?
David: Yes, I do. I will have the black one
because it’s ________than the red one.
Salesman: Thank you very much, sir.more expensivelighterbigger形容词比较级的变化的规则： （一）单音节词 ，双音节词的比较级 ⑴一般在词尾加er ； ⑵以字母e 结尾，加r ； ⑶以一个元音字母和一个辅音字母结尾，应双写末尾的辅音字母，再加er ；
⑷以“辅音字母+y”结尾，先把y变i，再加er 。
（5）以ly 结尾 构成形容词词缀
如： friendly---more friendly
（6）分词形容词前加more 如： boring interesting bored interested
（7）以形容词后缀结尾的形容词前加more carful---more careful
（8）特殊变化 well/ good ---better many/much---more （二）多音节词的比较级 前加more more careful more beautiful 写出下列形容词或副词的比较级 old__________? ? young________?
tall_______? ? long________? ? short________? ? strong________? ?
big________? ? small_______ fat_________? ? thin__________? ?
heavy______? ? light________ olderyoungertallerlongershorterstrongerbiggersmallerfatterthinnerheavierlighter?
nice_________? ? good_________? ?
beautiful__________________ ?low__________? ?high_________?
?boring_______?
difficult________ ?late__________? many_________?
much_______ nicerbetter more beautifullowerhigher more boringmore difficult later moremoreThe superlative of adjectivesWhen we compare more than two people or two things , we use the superlative of adjectives.
The red laptop is the smallest among
the threeWe form the superlatives like this:
Work out the ruleTo form the superlative of adjectives, we often add__________ to the short adjectives and use __________with long adjectives.
We usually use __________in front of the superlative of adjetives.estmostthe形容词最高级的变化的规则： （一）单音节词 ，双音节词的比较级 ⑴一般在词尾加est ； ⑵以字母e 结尾，加st ； ⑶以一个元音字母和一个辅音字母结尾，应双写末尾的辅音字母，再加est ；
⑷以“辅音字母+y”结尾，先把y变i，再加est 。
（5）以ly 结尾 构成形容词词缀
如： friendly---most friendly
（6）分词形容词前加most 如： boring interesting bored interested
（7）以形容词后缀结尾的形容词前加most carful---most careful
（8）特殊变化 well/ good ---best many/much---mot （二）多音节词的比较级 前加most
the most difficult the most carful 记住别忘了在最高级前加the 哦Read and compare :young
long
full
short
small
old
fine
younger youngestlonger longestfuller fullest shorter shortestsmaller smallestolder oldest finer finest记住别忘了在最高级前加the 哦easy
hungry
early
heavy
big
redeasier easiesthungrier hungriest heavier heaviestbigger biggest redder reddestearlier earliestRead and compare :B1. David is shopping for a camera. Look at
the photos and write the letter of the correct model after each statement.
David told his friend Tony about his shopping trip. Complete David’s sentences with the superlative of the adjective from the box.
expensive light old small
Tony: Did they show you any cameras?
David: Yes. (1)The smallest model is
(2)99.8X56.4mm X24.5mm. The (3)______________model costs(4)_______________________
The (5)_______________model was made in (6)________________
The (7)___________________model weighs(8) _________________most expensive￥ 3589lightest170goldest2010Let’s do more exercise根据句意填入单词的正确形式： 1. My brother is two years _______(old)than me. 2. Which is __________(heavy),the elephant or the pig? 3. Is your sister _________(young) than you? Yes, she is. 4. Who is ___________(thin),you or Helen?
Helen is. 5. Whose （谁的）pencil-box is __________(big),yours or hers? Hers is. olderheavieryoungerthinnerbiggerI think English is _________than maths.
A. important B.more important
C. most important D. importanter
2.Mother gets up in my family.
early B. earlier
C. earliest D. the earlier
3. The next morning Jenny got up even .
early B. earlier C. earliest D. the earliest
Thank you !课件8张PPT。 Unit3
Computers Listening and speakingListening
Top office
Company:
Name:Hi-Lo companyMabel Wang819611501500C4091120012005 boxes￥60￥ 300￥3000Speaking
A Talk time---Extra stress
A1 Read the conversation and give the extra stress to the underlined words.
Amy: What do you think of computers, Frank? Are they cleverer than human beings?
Frank: No, I don’t think so.
Amy: Why not? Computers can do a lot of things!
Frank: Maybe, but human beings created computers!
Amy: That’s true!
A2 Read the conversation and practise the extra stress.
Frank: Which kind of computers are better, desktops or laptops?
Amy: Laptops, I think.
Frank: Why?
Amy: Laptops are lighter. They are easier to carry around than desktop!
Frank: Yes, but desktops are often cheaper than laptops. And I don’t really have much money.
Amy: Well, then a desktop is probably a better choice for you.Speak up
Do a survey about using computers at home. Use the following questions to help you.
1. Do you have a computer at home?
2. How often do you use the computer?
3. What do you usually do on the computer?
4. How much time do you spend playing computer games every week?
5. How do you use the computer to help you study?
6. Your own questions:____________________B2. Go around the class and interview other students about using computers at home. And give a report like this :
We found that …of the class have computers at home.
…use computers almost every day, and …don’t use computers very often.
…often…on the computer at home…
Thank you !
