沪教牛津版(2024)八年级上册Unit 3 Computers一等奖ppt课件
展开Where are Hi and L? What is Hi wndering abut L? Where des L get his mney?What can yu d with an ATM? What makes an ATM wrk?
Lk at the cartn and answer the questins.
They’re utside a bank.
He is wndering why L is never shrt f pcket mney.
L gets his mney frm the ATM.
We can get mney frm it r put mney int it.
Maybe a cmputer.
Part I Lead-in
Getting ready
Match the wrds in clumn A with the definitins in clumn B.
Mre abut cmputers
AATMsftwarehardwarevirus
Bsmething that gets int a prgram and harms ita cmputer’s mnitr, keybard, drives, etc.autmated teller machinethe sets f prgrams that yu put int a cmputer when yu want it t d particular jbs
AmultimediafilePCnetwrk
Ba cllectin f infrmatin n a cmputer that is stred under a particular namepersnal cmputertw r mre cmputers linked tgethera mixture f sund, pictures, film, and writing t give infrmatin, especially with cmputers
Hw much d yu knw abut cmputers? Lk at the pht belw and cmplete the sentences with the crrect names.
A What d yu knw abut …?
Part II Pre-Reading
1. The _________ shws wrds and pictures.2. We use the _________ fr typing.3. The “brain” f a cmputer is in the ___________.4. We mve the _________ t cntrl the cmputer.5. We hear sund frm the _______.
B Befre yu read
1. Cmputers are getting smaller and better.2. Cmputers can d imprtant jbs like flying planes.3. Cmputers may wrk as dctrs.4. Cmputers are expensive.
Lk at the pictures, the title and the sub-headings f the article n page 35. Then tick (✓) the facts that the article prbably talks abut.
Smaller and betterIn the 1940s, the first cmputers were bigger than cars. Nw cmputers are becming smaller and better.Sme cmputers are tiny. Yu may be unaware f them. There is prbably ne inside yur TV r washing machine. Yu depend n cmputers mre than yu realize.
What can we d with cmputers?We can use cmputers t calculate. They can calculate at a faster speed than we can and almst never give wrng answers. We can als type and draw things with them. In additin, cmputers can d imprtant jbs like perating railways and flying planes and spaceships.
Part III While-Reading
Cmputer facts
Is a cmputer cleverer than me?The answer is “N’’. Yur brain can prduce new ideas but cmputers cannt. Hwever, ne day cmputers may be able t d a better jb than human beings. Fr example, they may be better than dctrs at ding their jb.What will happen t us if cmputers can d all ur jbs? Will we have nthing t d? Cmputers may change ur lives, but will they make them better?
I. Read the first part f the article and cmplete the table belw.
Smaller and better
bigger than cars
smaller and better
There is prbably a tiny cmputer inside yur TV r washing machine.
Yu depend n cmputers mre than yu realize.
calculate at a faster speed than we can
almst never give wrng answers
type and draw things
d imprtant jbs
perate railways
II. Read the secnd part f the article and cmplete the table belw.
What can we d with cmputers?
fly spaceships
Is a cmputer cleverer than yu? Why?What jb may cmputers be able t d better ne day?What prblem will we prbably face if cmputers can d all ur jbs?
III. Read the third part f the article and answer sme questins.
Is a cmputer cleverer than me?
N, it isn’t. Because the human brain can prduce new ideas but cmputers cannt.
The jb f a dctr.
We may have nthing t d.
The __________ f cmputers in different times
The __________ f cmputers in daily life
The __________ between human beings and cmputers in the future
relatinship
IV. Cmplete the utline f the article.
V. Find sme examples in each part f the article.
VI. Put the fllwing sentences in the right places f the article.
They are super calculatrs.
2. They may als be gd teachers.
3. Yu may als have ne in yur watch r MP3 player.
C Vcabulary
If smething is very small, it is _______. (line 5)Sme yung peple always need help frm their parents. They shuld learn t _____________ themselves. (line 8)We had fun and learnt smething new as well. We had a gd time. _____________, we learnt a lt. (line 14)When we make a machine wrk, we __________it. (line 16)
C1 The wrds in italics explain the meanings f sme wrds n page 35. Find these wrds t cmplete the sentences. Change their frms if necessary.
depend n expensive In additin speed
C2 Cmplete the cnversatin belw with the wrds frm the bx.
Mark: I bught a new cmputer.Helen: Why?Mark: I bught my first cmputer five years ag. I used it almst every day, and it became really slw.Helen: I see. S hw’s yur new cmputer?Mark: It was really ___________, but it wrks at a much faster______ than my ld ne. ______________, it has a larger mnitr. Helen: I als ______________ my cmputer a lt these days. I use it t write reprts, and t get n the Internet t. My cmputer wrks well , s I’m nt ging t buy a new ne.
D Cmprehensin
D1 Cmplete the answers with the examples frm the article.
draw things
fly planes and spaceships
may be better than dctrs at ding their jb
What were the first cmputers like? ______________________________________2 Why are we unaware f sme cmputers? ____________________________________Are cmputers cleverer than yu and me? Why r why nt? ____________________________________________
They were bigger than cars.
Because they are tiny.
N, they aren't. Because ur brain can prduce new ideas but cmputers cannt.
D2 Answer the questins belw in cmplete sentences.
1. D yu depend n cmputers a lt in yur daily life? Give examples.2. D yu agree that cmputers will be able t d all ur jbs in the future? Give reasns.
D3 Discuss and answer the questins belw with yur classmates.
Will cmputers make ur lives better?
Part IV Pst-Reading
Wrk in grups. Discuss
Head t head
wrk as从事……工作 P34(be) unaware f 没意识到;未察觉 P35depend n依靠 P35in additin除……以外(还) P35*ne day 总有一天;某一天*be able t 能够*change ne’s life 改变某人的生活*get n the Internet 上网
短 语 收 藏 夹(Reading)带*的是学过的短语
1. rder n. 订货;订购他下了一个订单订购十台电脑。He placed an rder fr ten cmputers.我可以为你点菜了吗?May I take yur rder nw?
Ntes (Reading)
【短语拓展】place an rder 下一个订单 keep rder 维持秩序in gd rder 整齐 in bad rder 不整齐rder sb t d sth 命令某人去做某事
2. cmpare v. 比较;对比 cmpare 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 cmpared this mbile phne with that ne in price.比较一下这两个城市,你会发现哪一个更好。Cmpare these tw cities, and yu will see which ne is better.
cmpare … t … 把……比作……其中的t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 ften cmpare the teacher’s wrk t a candle.Fill in the blankIf yu cmpare the red bike _____ the blue ne, yu will see that the blue ne is better. Teachers ften cmpare children ____ the flwers.
3. cntrl v. 操纵;控制 ut f cntrl 失控你不应该吃那么多了,你必须要控制自己的体重了。Yu shuld nt eat s much. Yu have t cntrl yur weight.飞机失去控制了。最后冲向了大海。The plane was ut f cntrl. It rushed int the sea at last.
4. wrk as 从事……工作 我想要从事作家的工作。I want t wrk as a writer.你想要从事老师的工作吗?D yu want t wrk as a teacher?
5. Yu may be unaware f them. 你有可能忽略它们的存在。(be) unaware f 没意识到;未察觉我们没有察觉到危险。We are unaware f danger.我没意识到他来了。I was unaware f his cming.
6. Yu depend n cmputers mre than yu 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 n 依靠
当我们长大了,我们不能再依靠父母了。When we grw up , we can’t depend n ur parents any mre.
7. 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 f ... 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。 他是一个速度快的足球运动员。
Please drive at a safe speed.
He is a ftball player with gd speed.
选用at或with填空并翻译其与speed构成的短语。1. He finished the wrk ______ surprising speed.2. At night, they mved ______ a lw speed.3. The man drve his car ______ a speed f ne hundred kilmetres per hur.
8. In additin, cmputers can d imprtant jbs like perating 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 additin 除……以外(还)相当于besides,两者可以互换使用。in additin 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 pian well. In additin / Besides, he can sing.
【拓展】in additin t ... 意为“除了……之外(还)”,后面常接名词、代词或动词ing,可与besides互换使用,常放在句子中间。例如:除了英语之外,我还喜欢化学。 I like Chemistry in additin t / besides English.
同义句转换。It is t late t g ut nw. Besides, it is raining.It is t late t g ut nw. __________ , it is raining.根据中文意思完成句子。(每空不限一词)1. 除了必须要做家务之外,她还要照顾弟弟。She must d the husewrk. __________________, she must lk after her yunger brther.2. 除了张莉,还有三个同学想去。Three classmates want t g ___________________ Zhang Li.
In additin / Besides
in additin t / besides
(2) like是介词,意为“例如;比方”,后常跟名词和代词,与fr example和such as意思相同。原句可以改写成:In additin, cmputers can d imprtant jbs __________________ perating railways and flying planes and spaceships.
fr example / such as
(3) perate v. 操作;控制 perate v. 动手术 peratin n.手术 你会操控这台机器吗?Can yu perate this machine?医生正在给他的大腿做手术。The dctr is perating n his leg.
9. Fr example, they may be better than dctrs at ding their jb. 例如,它们可能比医生工作得更好。 Cmputers may change ur lives, ... 电脑可能改变我们的生活,……情态动词may在这两个句子中表示推测,意为“可能;也许”,只是一种可能性,常用于肯定句和否定句中,用于否定句中时,nt不是否定may,而是否定句子里的动词。may的另一种用法表示许可,意为“可以”。
把下列句子翻译成中文并说明may的用法。1. If I am busy tmrrw, I may nt cme. ________________________ 表示 _____2. Yu may g hme nw. ________________________ 表示 _____3. The stry may nt be true. ________________________ 表示 _____
如果我明天忙,我可能不来。
这个故事可能不是真的。
10. What will happen t us if cmputers can d all ur jbs? 如果电脑能做我们所有的工作,我们将会怎样?happen t 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。 昨天他出了车祸。
The stry happened / tk place in June, 1990.
A traffic accident happened t him yesterday.
11. ... but it wrks at a much faster speed than my ld ne. 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 lt (……得/的多)
例如:a little taller 高一点 still / even taller 更高 far / much / a lt taller 高得多我妈妈每天早上起床比我爸爸早得多。My mther gets up earlier than my father every mrning.
订货;订购比较;对比显示器扬声器主机键盘鼠标打字脑
rder cmpare mnitr speaker main unit keybard muse type brain
Part V Review
操纵,控制 昂贵的;价格高的极小的;微小的依靠;依赖计算速度操作;控制铁路系统
cntrl expensive tiny depend calculate speed perate railway
从事……工作没意识到;未察觉依靠除……以外(还) 总有一天;某一天能够改变某人的生活上网
wrk as(be) unaware f depend nin additinne day be able t change ne’s life get n the Internet
一、根据句意和所给的首字母填空。
1. The dress is t e_______. I dn’t have enugh mney t buy it.2. Humans use their b_____ fr thinking.3. It’s nt gd fr parents t c_______ their children with ther children.4. The plane travels at a high s_____.
二、选择最佳答案填空。
( ) 1. The train is running ____ a speed f 200 km/h. A. at B. with C. n D. in( ) 2. Travelling by plane is fast. ____, it’s mre cmfrtable. A. Abve all B. In fact C. In additin D. In the way( ) 3. We all live n Earth. Let’s make it even ____. A. well B. betterC. gd D. nice( ) 4. ____ a spaceship is a difficult jb. A. Operating B. Operatr C. Operatin D. Operate
三、根据中文意思完成句子。1. 你不能依赖别人来帮助你。Yu can’t _______ _____ thers t help yu.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 cmpany nw.4. 他很聪明。除此之外,他还很友好。He is very clever. ___ ________, he is very friendly.
depend n
was unaware f / did nt realize
In additin
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