初中英语牛津上海版 (五四制)九年级上册（新版）Unit 4 Computers教学课件ppt

这是一份初中英语牛津上海版 (五四制)九年级上册（新版）Unit 4 Computers教学课件ppt，共25页。PPT课件主要包含了Computers，mouse，keyboard，speakers，CD-ROM，DVD-ROM，drive，computers，Revision，aptops等内容，欢迎下载使用。
What d cmputers make yu think f?
Films＆Mvies
Getting news/ infrmatin
Making mney
Reading bks
Making friends
Different parts f cmputers
mnitr ['mɔnitə]
screen [skri:n]
keybard ['ki:bɔ:d]
drive [draiv]
main unit [mein] ['ju:nit]
speakers ['spi:kə]
flash disc[flæʃ] [disk]
read nly memry
CD-ROM / DVD-ROM [rɔm]
Cmplete the sentences with the new wrds.
The _______________ shws wrds and pictures.Yu use the ___________ fr typing in infrmatin.The _______ _______ and the _______ _______ stre infrmatin.The _______ helps yu cntrl the cmputer.The _______ _______ cntains all the cmputer’s electrnics.We can hear sund frm the _______.We put the _________ r _________ int the _______ in the main unit.
mnitr/screen
main unit
flash disc
Different kinds f cmputers
desktp cmputer
laptp ['læptɔp]
palmtp ['pɑ:mtɔp]
tiny cmputer
Sme technical wrds abut cmputers.
PCVirusdatasftwarehardwaree-mail
a persnal cmputersmething that gets int a prgram and harms itinfrmatinprgramsthe mnitr, keybard, etc.electrnic mail
What d we use cmputers t d/ fr?
Befre yu read
Read the title f the passage. What kind f facts d yu think the passage will prbably tell us?
True r false?
Cmputers …1are getting smaller and smaller.T / F2can d imprtant jbs like flying aerplanes.T / F3may wrk as dctrs.T / F4can’t recgnize yur vice.T / F
/'rekəɡnaɪz/ v. knw
While yu read
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.
Answer the fllwing questins:1.When were the first cmputers built ? In the 1940s 2. Hw big were there at that time ? They were bigger than cars.3. Cmputers have becme smaller and smaller since then, haven't they? Yes ,they have.4. What can we knw frm this paragraph ? The histry and develpment f cmputers.
III: Read the first part f the passage and cmplete the table.
Cmputers have becme smaller and smaller.
bigger than cars
the size f televisins
the size f big bks
small enugh t put in yur pcket like a bar f chclate
s tiny that yu may be unaware f them
It is cmmn knwledge that cmputers are super calculatrs. They can calculate very fast and rarely give wrng answers. They can als type, print and draw things. They can teach yu and play games with yu. Mre imprtantly, they can perate railways and fly aerplanes and spaceships. Fr these reasns, we ften call them electrnic brains.
IV. Read the secnd part f the passage again and cmplete the table.
Cmputers are super calculatrs.
calculate very fast
rarely give wrng answers
1) type, print and draw things
2. teach yu and play games with yu
1) perate railways
2) fly aerplanes
3) fly spaceships
We call them electrnic brains.
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?
Let's discuss the fllwing questins tgether:1.Is a cmputer cleverer than I am? Fr the time being , the answer is “N”2. Cmputers can create new ideas, can’t they? Why ? N ,they can‘t. Suppsing ne day cmputers may take the place f humanbeings and can d every thing fr us . what will ur humans d ?
sme imprtant phrases:1.be unaware f 没意识到 2.depend n/rely n 依靠；依赖 3.It's cmmn knwledge 众所周知 4.Mre imprtantly 更重要的是 5.electrnic brains 电子大脑 6.the answer t... 。。。的答案是 7.the meaning f 。。。的意思是 8.be better than ding sth. 比。。做某事更好 9.raise sme questins 提出一些问题 10.change ne's life/lives 改变某人的生活
Hme wrk:1. Trying t retell the text and recite the secnd and the third Paragraphs 2. finishing page56-57
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!
Many f tday’s cmputers have CD-ROM r DVD-ROM drives. A DVD-ROM can hld millins f pages f writing, and can als cntain pictures, vides and sunds. Fr example, yu can use yur cmputer t read abut a famus persn frm histry and yu can see a phtgraph r vide f him r her, and even listen t them speaking. Sme peple think that DVD-ROMs will sn be mre ppular than bks.
Answer the questins
When were the first cmputers built?Why d we call cmputers super calculatrs? Cmputers can create new ides, can’t they?What d we need if we want t talk t ur cmputers?What will prbably happen t DVD-ROMs in the future?
The first cmputers were built in 1940s.
Because they can calculate very fast and rarely give wrng answers.
N, they can’t.
We need a prgram.
DVD-ROMs will sn be mre ppular than bks.
Rearrange the fllwing sentences accrding t the title f each paragraph.
a. A kind f prgram can make cmputer recgnize peple’s vice.
e. CD-ROMs and DVD-ROMs can stre a large amunt f infrmatin.
b. Maybe cmputers will be cleverer than humans’ brains in the future.
d. Cmputers are helpful and can d a lt f things.
c. Cmputers used t be huge, but they are becming smaller and smaller nwadays.
Cmputers With the fast develpment f science and technlgy, cmputers play a mre imprtant part in ur daily lives than befre. There are many kinds f cmputers, such as desktp cmputers, l________ , p________ cmputers and tiny cmputers. Desktp cmputers are very cmmn. A desktp cmputer is usually cnsist f a main u________, a m________, a k________ and a muse. In the main unit there is a d________, yu can put C________ r D__________ in it. Then yu can enjy pictures r vides frm the s________. If yu want t listen t sme music, yu can add tw s________ t yur cmputer. If yu need t stre smething imprtant and take it with yu, yu can use a f________ disc. Every cin has tw sides. On ne hand, cmputers are very useful. On the ther hand, if yu dn’t use cmputers prperly, it will be a waste f time.