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1、Unit 3 Computers Reading,keyboard,mouse,monitor,screen,speaker,host computer,camera,Write out all the words you know about computers.,computer,monitor,click,software,search,update,download,Internet,keyboard,7.artificial intelligence 人工智能 8. solve vt.解决 9. reality n.现实 10.personal adj.个人的，私人的 11.appl
2、ication n.应用 12.finance n.金融，财经 13.explore vt.探索，探测,1.calculate v. 计算 2.calculating machine 计算机器 3.simplify vt. 简化 4.operator n.操作员 5.logically adv.逻辑地 6.technological revolution 技术革命,vocabulary,Consolidation,1.calculate 2.calculating machine 3.simplify 4.operator 5.logically 6.Technological revolut
3、ion 7.artificial intelligence 8. solve 9. reality 10.personal 11.application 12.finance 13.explore,v. 计算 计算机器 vt. 简化 n.操作员 adv.逻辑地 技术革命 人工智能 vt.解决 n.现实 adj.个人的，私人的 n.应用 n.金融，财经 vt.探索，探测,Reading: Who am I?,(Fast reading) Task 1,2. Whats the main idea of this passage? A. The development of computers.
4、B. The development and use of computers. C. A machine which is simple-minded. D. Computers may replace human beings.,1 Who am I?,A computer.,In the time order,3. In what order is the passage organized?,Task 2: Skim again to find the topic sentence for each paragraph.,Paragraph 1:,Over time I have be
5、en changed quite a lot.,Paragraph 2:,These changes only become possible as my memory improved.,Paragraph 3:,Since the 1970s many new applications has been found for me.,How can we find the top sentences quickly and correctly?,Exploration,1. the first sentence of the paragraph. 2. the last sentence o
6、f the paragraph. 3. the second sentence or the sentence after such words as “however, but 4. No topic sentences. We should conclude.,Careful reading,Task 1: Scan the text and then choose the best answer according to the text.,1.How long did it take before the computer was built as an analytical mach
7、ine? A.500 years. B.300 years. C.100 years. D.200 years.,2.Why did I totally change my shape? A. Because I could do many things. B. Because I could simplify sums. C. Because my memory improved. D. Because I never forgot anything.,3.According to the last paragraph, which was not mentioned in the use
8、of the computer? A.Mobile phones. B.Rockets. C.Bikes. D.Robots. 4 .We can infer that the computer will_ . A.take the place of human race B.be smarter than human beings C.be used in many fields in our life D.be made by oneself,Calculating machine,Computer,Internet,Analytical machine,Artificial intell
9、igence,Universal machine,The development of computers:,Task 2： Read the text carefully and put the following forms of a computer in correct order.,The development of computers:,Calculating machine,Analytical machine,Universal machine,Artificial intelligence,Computer,Internet,计算器,分析机,万能机,通用机器,人工智能,Re
10、tell the text by filling the following 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 gone by, I have been made _ and _ but I became _ and _.,Task 3:,In the _ they gave me a family connected by a _.
11、Now people call it the _. I have been used in _ and _ since the 1970s. So I became PC. Since my _ I have truly been built to serve the _ _.,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 gone by, I have been
12、 made _ and _ but I became _ and _.,calculating machine,analytical machine,machine,Answer:,universal,smaller,smaller,cleverer,quicker,In the _ they gave me a family connected by a _. Now people call it the _. I have been used in _ and _ since the 1970s. So I became PC. Since my _ I have truly been b
13、uilt to serve the _ _.,network,1960s,Internet,human,race,offices,homes,birth,Discussion/Debate,With the development of computer technology, the Internet had become more and more popular among students. However,just as a saying goes, a coin has two sides. The Internet brings both advantages and disad
14、vantages to students. Discuss with your partners to list some advantages and disadvantages of the Internet. Advantages: _ _ Disadvantages: _,advantages,1municate with friends all over the world 2.listen to the music 3.see films & watch news 4.play games 5.do shopping 6.save a lot of time 7.do a lot
15、of useful things 8,Disadvantages:,1.Some people especially the teenagers are addicted to the computer games and chatting on the Internet. As a result, they have little time to study. 2.Some people use the computer wrongly. 3. netizens privacy are sometimes left dangerously exposed. 4.,Writing : a short speech on “How to use the Internet
