高中高一英語(yǔ)必修二unit3 computers warming up and reading who am i課件.ppt

1、,Unit 3 Computers Warming up,Heavy! Difficult! Hard! Tired!,keyboard,mouse,monitor,screen,speaker,host computer,camera,DVD-ROM,CRT monitor,LCD monitor,CPU,hard disc,motherboard,some hardware:,modem,scanner,printer,speaker,floppy disc/disk,USB flash disc,CD/VCD/DVD,MP3 player,MP4 player,Memory:(存儲(chǔ)器),

2、other useful words and expressions about computer:,Network網(wǎng)絡(luò) Virus病毒 Download 下載 Up load 上傳 Program程序 Website站點(diǎn) Hacker 黑客,Home page 主頁(yè) Password密碼 Desk top 桌面 User name 用戶(hù)名 Click 點(diǎn)擊 Software 軟件 Hardware 硬件,Home page 主頁(yè),What is PC? Speak the name on the whole.,It means: personal computer.,2. What is I

3、T?,Information Technology.,3. What is CD-ROM?,Compact disc read-only memory.,4. What is PDA?,Personal digital assistant.,5. What is W.W.W?,World wide web.,6. 科學(xué)技術(shù)。,Science and technology.,7. 人工智能。,Artificial intelligence.,8.筆記本電腦。,Notebook computer.,What do they have in common?,an abacus,a calculato

4、r,a desktop,a notebook computer a laptop,(What do they have in common?),1.They can be used for calculating. 2.They can deal with maths problems. 3.They are our friends. 4.They are useful and helpful.,Discussion,work for us in Mars,Whats next?,carry things,work in wars,仿真機(jī)器人,entertainment 娛樂(lè),What do

5、you think will be the next development?,Reading: Who am I?,Skimming: Read and answer these questions:,2. Who was the first person to invent the earliest computer? 3. Who was the next important person to design computers?,Charles Babbage,Alan Turing,1. Who am I?,A computer.,timeline,1642: 1822: 1936:

6、 1940s: 1960s: 1970s: Now:,Scanning:,The computer began as a calculating machine.,the Analytical Machine was built by Charles Babbage.,The computer grew rapidly both in size and in brainpower.,Computer had grown as large as a room.,Computers were used in officers and homes.,Computers connect people

7、all over the world together.,the first family of computers was connected to each other,The history of computers,the second generation (1956-1963),the third generation (1964-1971),the fourth generation (1971- ),The first generation (1945-1956),The development of computers:,Calculating machine,Analyti

8、cal machine,Universal machine,Artificial intelligence,Computer,Internet,計(jì)算器,分析機(jī),萬(wàn)能機(jī),通用機(jī)器,人工智能,Intensive reading: Underline the phrases and sentences that you think are important,Star sentences:,P1 L2 I _instructions from cards with holes. P1 5 Earlier I was not very big, but then I became _ . P1 L6

9、However, people thought I was _ until they _ I had “artificial intelligence.”,我執(zhí)行穿孔卡的指令,早些時(shí)候我并不是很大，但是后來(lái)我變得非常大,可是，人們認(rèn)為我頭腦簡(jiǎn)單， 直到發(fā)現(xiàn)我有人工智能時(shí)， 他們才不那么想了。,followed,huge,simple-minded,discovered,P1 L8 As the years have _, I have been made smaller and smaller. P2 L1 There were _ when my size was _changed. P2

10、L3 But I was always so lonely _ there by myself, until in the early 1960s,they gave me a family _ by a network.,隨著歲月的流逝， 我被做得越來(lái)越小了.,有段時(shí)期我的體積完全變了,但是我總是孤孤單單地站在那里，直到60年代初， 人們才 給了我一個(gè)用網(wǎng)絡(luò)連接的家庭。,gone by,times,totally,standing,connected,What are the advantages and disadvantages of the computers? In my opini

11、on,I can use the computer to.,Discussion,We can use the computer to.,listen to music,Watch movies,search for ,communicate with,do shopping,Advantages We can use the compuers to 1. use a computer for school work 2. play games on the computer 3. send emails to friends 4. download music and films 5. go

12、 shopping on line 6. use QQ to make friends 7. communicate with others,8. use the Internet to search for information 9. surf the web for fun 10. read news both at home and abroad, read books and magazines,Disadvantages Some students may get too addicted (沉溺于)to it . Some students waste too much time

13、 in playing computer games. Some students spend too much time in chatting with others and may be cheated (欺騙)by someone on line. As a result, they have little time to study It is bad for our eyes and health to spend long time in front of computers.,Summary about the text. The computer _ a calculatin

14、g machine in 1642, then in 1822, it was built as an _ by _. At the year of 1936, Alan Turing _ to describe how computers _to work , and build a “universal machine” to solve_. With the development of _,began as,Analytical Machine,Charles Babbage,wrote a book,could be made,mathematical problem,information technology,in the 1960s, computers had new _and became_, then were connected to each other by _. As the years had _, computers were_,peoples homes. Now computers have become the most important _