人教版必修二unit3 computers ppt 复习

smaller desktop
convenient laptop
palmtop
Skimming to get
general ideas
Skimming
Reading Comprehension I
1. Who is the speaker in this story? A computer.
2. What’s the main idea of this passage? A. The development of computers. B. The development and use of computers. C. A machine which is simple-minded. D. Computers may replace human beings.
Size: smaller Intelligence: cleverer
Speed: quicker
Function:
calculating
dealing with …, communicating with…
People’s opinion: simple-minded
clever & useful
( 2 ) analytical machine ( 5) laptop ( 1 ) calculating machine ( 6 ) robot ( 4 ) PC ( 3 ) universal machine
Charles Babbage
Alan Turing
Q: how did computer change in its size, intelligence, speed, function? And how about people’s opinion?

目录
14.intelligent robots 智能机器人 15.make a list 列清单 16.artificial intelligence 人工智能 17.be part of an android football team 成为机器人足球队的一员 18.have a good shot for a goal 有好的机会射门
目录
14.watch over看守；监视；守护；照看 watch out (for...) 注意；谨慎 (……) watch for 守候；当心；等待 keep a close watch on 密切监视 be on watch 值班；看守
目录
1.with the help of my electronic brain 在我电子大脑的帮助下 2.from then on 从那时起 3.after all 毕竟；终究 4.what they have in common 他们拥有的共同之处 5.share my knowledge with others 与他人分享我的知识 6.work out a list 列出清单
目录
3.sum n.总数；算术题；金额vt.总计，概括 vi.合计 •in sum 总而言之 a large sum of 一大笔；大量的 •sum up 总结，概括 eg. They donate a large sum of money to the Red Cross every year. 他们每年都向红十字会捐献大笔的钱。
目录
12.arise vi.(arose，arisen；arising)起身，起来(stand up)；起床(get up)；出现； 产生；产生(appear，happen，occur) arise from/out of... 由……引起/产生 arise from... 从……上站起来 eg. (北京卷书面表达)I didn’t expect our tea culture should be so attractive and therefore, a sense of pride in my mind arose. 我没想到我们的茶文化会如此吸引人，因此，我心中升起了自豪感。

性格；特点 发信号 信号 出现；发生 电子的
◆记住词义 1.calculate vt. 2.universal adj. 3.simplify vt. 4.logical adj. 5.revolution n.
计算 普遍的；通用的；宇宙的 简化 合逻辑的；合情理的 革命
6.artificial adj. 7.intelligence n. 8.application n. 9.finance n. 10.rocket n. 11.virus n. 12.coach n.
作为……的结果 毫无结果地 由……引起 导致；结果
19.watch out (for...) 20.watch for 21.keep a close watch on 22.be on watch －－－－－－－－－－－ 23.work as 24.serve as 25.act as
注意；小心 (……) 守候；当心；等待 密切注视 值班；看守
人造的；假的 智力；聪明；智能 应用；用途；申请 金融；财经 火箭 病毒 教练
◆写出短语 1.in a way 2.with the help of 3.deal with 4.watch over 5.as a result 6.go by
在某种程度上 在……的帮助下 处理；安排；对付 看守；监视 结果 (时间)过去；流失
⑥These policies resulted in many elderly people suffering hardship.这些政策使 得许多老人饱受困苦。
⑦The cashiers were asked to watch out for forged banknotes.出纳员接到要求， 要注意伪钞。

What’s next?
carry things work in wars work for us in Mars
Activity 2 Thinking Q: In what ways is the computer used？
communicate with…
Watch movies & TV plays
More knowledge about computers
1. What is IT? Information Technology.
2. What is CPU? Central Processing Unit.（中央处理器） 3. What is WWW? World Wide Web. 4. What is the English for “科学技术”? science and technology.
listen to music
do shopping
search for …
play computer games
Besides, we can … with computers
• send e-mails instead of letters;
• read news at home and abroad;
register 注册，登记 software 软件
download 下载
hardware 硬件
Consolidation
• Complete the sentences with proper words. 1. We should use computers properly and
never be a m_o_u_se__ potato. 2. In the accident he e_s_ca_p_e_d_ being killed. 3. You can input the capital letters when you