人教版高中英语 必修二 Unit3 《Computers---Reading》 课件2

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Unit 3 Computers Reading keyboard mousemonitor screenspeaker host computer camera Write out all the words you know about computers. computer monitorclicksoftware searchupdatedownloadInternet 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.application 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 Consolidation1.calculate 2.calculating machine3.simplify 4.operator5.logically6.Technological revolution7.artificial intelligence8. solve9. reality10.personal11.application12.finance13.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 12. Whats 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.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 been 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?Exploration1. the first sentence of the paragraph.2. the last sentence of the paragraph.3. the second sentence or the sentence after such words as however, but 4. No topic sentences. We should conclude. Careful readingTask 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 machine? 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 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 machineComputerInternetAnalytical machineArtificial intelligenceUniversal machineThe 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 machineUniversal machineArtificial intelligenceComputerInternet计算器分析机万能机,通用机器人工智能 Retell 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 _. 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 made _ and _ but I became _ and _. calculating machineanalytical machinemachineAnswer: universalsmaller smallercleverer 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 built to serve the _ _. network1960sInternet human raceoffices 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 disadvantages to students. Discuss with your partners to list some advantages and disadvantages of the Internet.Advantages:_Disadvantages:_ advantages1municate with friends all over the world2.listen to the music3.see films & watch news4.play games5.do shopping6.save a lot of time7.do a lot of useful things8. 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 properly”According to your discussion, please voice your opinions.Prepare in 5 minutes and show. Summary: what have we learned?1.some words about computers.2 the development of computers3 the strategies of finding topic sentences 4. To use the internet in a proper way . 1 To recite the words learnt in this class . 2 To analyze the complex sentences and translate them into Chinese. 3. To read more material about computers.
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