初中牛津上海版 (五四制)Unit 4 Computers教学ppt课件

这是一份初中牛津上海版 (五四制)Unit 4 Computers教学ppt课件，共24页。PPT课件主要包含了DVD-ROM，keyboard，monitor，speakers，flash disc，mouse，drive，main unit，screen等内容，欢迎下载使用。

What d yu want t knw abut cmputers?
Cmputer facts
Think and ask
Read and match
Cmputers have becme smaller and smaller.
It is cmmn knwledge that cmputers are super calculatrs.
Whether a cmputer is cleverer than a persn is a questin.
Yu can talk t yur cmputer.
Many f tday’s cmputers have CD-ROM r DVD-ROM drives.
Lk and answer
the first cmputer
desktp cmputer
palmtp cmputer
Other kinds f cmputers
The first cmputers were built in the 1940s. They were bigger than cars! Since then cmputers have becme smaller and smaller. Desktp cmputers are the size f televisins. Laptps are the size f big bks. Nw we have palmtp cmputers. They are small enugh t put in yur pcket like a bar f chclate. Other kinds f cmputers are s tiny that yu may be unaware f them. There is prbably ne inside yur TV, telephne, r washing machine. S yu prbably depend n cmputers mre than yu realize.
Read and cmplete the table
the first cmputers
desktp cmputers
palmtp cmputers
bigger than cars
the size f televisins
the size f big bks
like a bar f chclate
were built… bigger than …
the size f …
small enugh t … like …
s … that … be unaware f…. S yu….
Listen and fill in the blanks
It is ________ knwledge that cmputers are super calculatrs. They can calculate very fast and _______ give wrng answers. They can als type, _______ and draw things. They can teach yu and play games with yu. Mre ___________, they can ________ railways and fly aerplanes and __________. Fr these reasns, we ften call them electrnic _______.
calculate _____ _____
very fast
_____ _____ wrng answers
rarely give
____, ____ and draw things
type print
______ ____ and_____ ______ with yu
teach yu
play games
seldm;nt ften
__________railways
use r cntrl a machine
_____ _________
fly aerplanes
fly spaceships
____ __________
smething knwn by everyne
It is ____________ that cmputers are super calculatrs.
teach _________ ______ with yu
_______ railways
fly _________
fly__________
Fr these reasns,….
Listen and judge
1. A DVD-ROM can hld thusands f pages f writing.
2. We can see pictures and vides n cmputers.
3. We can use the cmputers t read abut Edisn and see the pictures r vides f China's Gt Talent .
4. We can listen t VOA n cmputers.
5. DVD-ROMs have already been mre ppular than bks.
Ask and answer
1. Have yu ever chatted with yur friends n yur cmputer?
2. Must we type when we chat with ur friends?
3. What can we use cmputers t d in the vide?
Nw yu d nt even need t knw hw t type. Yu can buy a prgram which helps the cmputer recgnize yur vice. Yu can talk t the cmputer and it will bey yur cmmands, and write yur letters!
Read and cmplete the flw chart
Buy a __________
Help yur cmputer recgnize yur ________
______ ______ yur cmputer
The cmputer will ________ yur ______________
The cmputer will _______ ________ ________
The answer t this questin is, fr the time being, ‘N’. Yur brain can understand the meaning f things better and create new ideas. Hwever, ne day cmputers may be able t d mst things that a human brain can d and even d them better. Fr example, they may be better than dctrs at ding their jb.If this is true, it raises sme interesting questins. What will happen t us if cmputers can d ur jbs? Hw will we spend ur lives? Will we have nthing t d? Cmputers may change ur lives, but will they make them better?
Make a dialgue
A: Is a cmputer cleverer than a persn? Why?
A: What jb can cmputers d better than humans?
A: Will we have nthing t d if cmputers can d ur jbs? Why?
A: Cmputers may change ur lives, but will they make them better? Why?
B: …, because….
Cmplete the passage
The cmputers are getting s_______. The first cmputers were bigger than cars. Then, there are d_________ cmputers, laptps, p________ cmputers and ther kinds which are s t______ .As we all knw, cmputers can d sme easy jbs, such as t________, printing and drawing things. M______ imprtantly, they will pssibly becme pilts because they can fly a___________, r astrnauts as they can fly s___________.Besides, we can watch v_______ f famus persns and listen t them s________. Therefre, perhaps cmputers will be mre p________ than bks ne day.
Believe it r nt, cmputers are s amazing that yu can even t_____ t yur cmputers. Yu just need t buy a p___________.Hwever, cmputers aren’t s c________ as humans, fr the reasn that ur brains can understand the m________ f things better and c_______ new ideas. But it is said that cmputers can be b_____ than humans at ding their jbs, such as d_____.S there is a questin raised: Is a cmputer cleverer than a persn?
Fill in the blanks
Is a cmputer cleverer than a persn?
Discuss and reprt
I think/ In my pinin (view, eyes),…
First,….Secnd,….
What’s mre,/ In additin,/ Besides,/ Mre imprtantly,….
Finally,/ In the end,/ At last,/As a result….
Cmputers VS Humans
In my pinin, humans and cmputers are bth imprtant.
First, humans create cmputers and ther new ideas.
Secnd, Our brains can understand the meaning f things.
As a result, cmputers are becming cleverer and cleverer, but n matter hw clever cmputers are, they will always be ur servants.
What’s mre, humans have lts f feelings, but cmputers which are perated by humans dn’t have.
Hwever, cmputers can calculate very fast and rarely give wrng answers. Besides, they can even d sme jbs better than humans.
1. Listen and read the passage.
2. Write a shrt passage t tell us whether cmputers are cleverer than humans r nt .