unit3 computer[上学期]

课件40张PPT。Welcomeabacusbe used for calculatingcalculatorbe used for calculatingbe used to solve mathematical
problems huge computer It has a big face with many keysIt has two big ears which can play musicYou can watch TV or see a movie using itIt can be seen in the office, classroom and at home.It can download informationguesspersonal computerA notebook computerabacuscalculatorHuge computer PCnotebookWhat do they have in common? I think/believe that… In my opinion…They can be used for calculating.
They can deal with maths problems.
They are our friends. …surf the Internet deal with information
play games listen to music
draw pictures watch movies
communicate with people
buy things on-linemathematical problems
simple
simple - minded
artificial intelligence
Analytical Machine
technological revolution
human raceNew wordsabacusnotebookQuiz:What Do You Know About Computers?mousekeyboardprinterspeakerscreenhard diskmain boardfloppy disc(软磁盘)headphoneCPU中央处理器If you are asked to write a passage about computer, which of the following topics will you choose? (1). its different parts
(2). its history and development
(3). its advantages and disadvantages
(4). its inventor
(5). …?Who Am IUnit 3 Computer1.Who is the speaker?
2. What topic is the text mainly about?
(1). its different parts
(2). its history and changes
(3). its advantages and disadvantages
(4). its inventor
(5). …It is a computer.
164219361960s1970s1822Calculating machineAnalytical
machineUniversal machineNetwork Personal ComputerInternetbe used to __________Built by ______________; follow instructions from _____with ______Built by _________; solve ___________ problems; simple-minded and artificial intelligence; the size: not very big—____-smallGet new________; be changed; small & thin; get cleverer & quicker; be connected by＿＿＿＿;share…with;
talk to…be brought into______be used to deal with…and communicate with..; serve transistorscalculateCharles BabbagecardsholesAlan Turingmathematicalhugenetworkhomes1642182219361960s1970snowcalculating
machinecalculatefollow instructionsmathematical
problemsshare information …
talk to…deal with information; communicate with…Analytical
machineUniversal
machine transistors
network P CInternetThe history and development of computersI love being used to…
I have been built to …Changes in size 1._______________ (earlier)
2._______________ ( in the past)
3.____________________ (modern)not very bighugesmaller and thinner The computer began only as a ____________
machine in 1642 and then in 1822 it was built as an ___________ _________by Charles Babbage. Later, Alan Turing built a _________ ________to solve any ______________problem. At first, the computer was not ____ but then it became_____ and later became _______ and ________. calculatingAnalyticaluniversalmathematicalbigsmallersmallerhuge In the early 1960s, computers could be connected by a _________ and it was brought to people’s homes in 1970s. Since then, people have used computers to ____ ______ information and ____________ ____each other around the world by the ________.networkdeal withcommunicatewithInternetSummaryMachinemachineDiscussion What will computers be like in the future? If you are asked to design a computer, what will it look like? What functions will it have??2. Which advantages and disadvantages
can computers bring? In your opinion,
should high school students use
computers to surf the Internet? Why?advantages:disadvantagesSend an e-mailIt is bad for your eyesDownload(下载) informationSee a movie or watch TVDo some chatting- - - - - - - Too expensive
Addicted to playing computer games Too expensiveAddicted to playing computer games - - - - - - - disadvantagesPeople can not write right Chinese lettersVirtual things (虚拟的) Internet1642182219361960s1970snowWhat will the computers be like in the future?The Development Of ComputersLanguage points for Reading II2.Simple-minded 头脑简单的Follow instructionas 执行指令服从命令follow an order听从劝告follow one’s advice遵循一种习俗follow a custom向某人学习follow sb’s example心不在焉的absent-minded没有偏见的open-minded意志坚强的strong-minded心胸狭窄的 narrow-minded3.Anyhow, let’s go back to my history.
不管这些，咱们还是回头讲我们的历史吧。
anyhow=anyway adv.不管怎样；无论如何
不管怎样值得试一试
Anyhow it’s worth trying.
无论如何，我今天必须完成这项工作。
Anyhow I must finish the work today.1.---How about going downtown this morning?
---Well…., it’s a bit too cold outside. And _______,
I’ve got to do some housework.
some way B. anyway C. somehow D. somewhat
2.---would you like me to help you with those heavy
bags?
--- I can manage myself. Thank you_______.
A. though B. someway C. anyway D. the same wayBC4.Then I was the size of a large room!
那时候我的体积有一个大房间那么大!
the size of 跟……一样大the length of跟……一样长 跟……一样高 跟……一样重 跟……一样宽我们学校是那个学校的三倍.
Our school is three times the size of that one.
Our school is three times as big as that one.
Our school is twice bigger than that one.the height ofthe weight ofthe width of5.As the years have gone by, I have been made
smaller and smaller. 随着岁月的流逝，我被做得越来越小了。我们不能仅从一个人的外貌判断一个人。
We can’t go by one’s looks alone.
2.根据交通规则判断，司机应该被罚。
Going by the traffic rule, the driver should be
punished.go by1) 经过，过去
一辆小车从我旁边开过。
A car went by me.(=pass by)
时间过得真快。
Time goes by quickly. (=passes)
2)根据….判断5. ….deal with information and communicate with
each other around the world by the Internet…..用来
处理信息，并通过因特网在世界范围内彼此沟通。deal with 与do with 都有处理；对付的意思
deal with 表示处理时常与连接副词how连用
do with 表示处理时常与连接代词what连用He knows_____ to deal with men but when he meets
women, he doesn’t know____to do.CUse the following expressions:I think that……
In my opinion……
I believe that……
It would be nice if……
richer and richer;
stronger and stronger;
easier and easier
Then what should we do if we want to develop more functions of the computer?Study hard.
Learn as much knowledge as we can.
Prepare to become great scientists! Summary The history of computersName : computer
Born : (time)_______ (place)_____
My father: _____________________
My size: 1._______________(earlier)
2._______________( in the past)
3.____________________(modern)
My history: 1. 1642 ___________machine
2. 1822__________machine
3. 1936 __________machine
4. 1960s computers with _________
5. 1970s ______ and ________ computers.
My usage: 1. ____________
2.____________
3.____________
Who am I 1642France Alan Turingnot very bighugesmaller and thinnerAnalytical calculatinguniversaltransistorsPCnotebookshare information.communicate with others.serve the human race. True or false
1. Charles Babbage was the computers’ real father.
2. The speaker was built as an Analytical Machine in 1822.
3. The speaker was called a calculating machine in 1936.
4. The speaker was given a family connected by a network in the late 1960s. F [ Alan Turing. ]T[ a universal machine ][ in the early 1960s ]F F Now people can use computers to deal with information and communicate with each other around the world by __________ . But the development of computers has a long history. In 1642, the first computer only worked as a ________________ . In 1822, an Analytical Machine was invented. In 1936 ,a machine was built. In ________ ,after getting new computers became ________________ in size, got cleverer and cleverer in intelligence, and became________________ in speed. Then they could be connected with other computers by a network, and ________ could talk to them using BASIC. In the 1970s ,people began to bring them into their homes. Summary the Internetcalculating machinethe 1960ssmaller and smallerquicker and quickerhumansuniversaltransistors,People say computers have more advantages than disadvantages. Do you think so?advantagesdisadvantagesABSuch as :Send an e-mailIt is bad for your eyes How do you use the computers in daily life？ (1). play computer games
(2). QQ（chat on line）
(3). send emails to friends
(4). download music and films
(5). search for information
(6). do business or work
(7). use computer for school work
(8). look at photographs……
Think: Which is the most important?Don’t spend too much time playing games!Download(下载) informationSee a movie or watch TVPlay computer gamesBuy goods you want Do some chattingadvantages- - - - - - - improve people's ability of thinking Too expensiveAddicted to playing computer games - - - - - - - disadvantagesPeople can not write right Chinese lettersVirtual things (虚拟的) 1.Should students
surf the Internet?2.Should students
go to the net bar? net barat homeHomeworkRetelling I began as a _______ ________ in 1642 in France. In 1822 I was built as an
_____ ______. Then in 1936 Alan Turing wrote a book and built a _______ ______. As the years have___ ___, I have been made___ ___ _______ but I got ____ ____ ___,____ __ ____. In the 1960s they gave me a family____ __ __ _____. Now people call it the Internet. I was _____ ____ ____ ___ in the 1970s.So I became PC. Since my birth I have truly been built to serve the human race.
calculating machineAnalytical Machineuniversal machinegone bysmaller and smallerclevererquicker and quickerconnected by a networkbrought into people’s homesand cleverer1 A monitor is
2 The screen is
3 A keyboard is
4 A mouse is
5 A CD-ROM is
6 A hard disk is (a) the part of a computer that stores information.
(b) the part of the computer that you type on.
(c) the part of the computer that looks like a television
(d) something you use to click on things (files, etc.).
(e) the part of the monitor that you look at.
(f) The main device that a computer uses to store information.Match the words with their meanings.Fill in the blanks:
I began as a _______ ________ in
1642 in France. In 1822 I was built as an
_____ ______. Then in 1936 Alan Turing
wrote a book and built a _______ ______.
As the years have___ ___, I have been made
___ ___ ____ but I got ____ ____ ___,
____ __ ____. In the 1960s they gave me a family____ __ __ _____. Now people call it
the Internet. I was _____ ____ ____ _____ in
the 1970s.So I became PC. Since my birth I
have truly been built to serve the human race.calculating machineAnalytical Machineuniversal machinegone bysmaller and smallercleverer and clevererquicker and quickerconnected by a networkbrought into people’s homes