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111 山東省泰安市肥城市第三中學高一英語人教版必修2《Unit 3 Computers》Reading學案 【 學習目標】 在本節(jié)課結束時，學生能夠 了解計算機的發(fā)展歷程及其在當今社會的廣泛應用。 【學習重點，難點】 計算機相關知識及計算機的發(fā)展歷史。 【課型】Reading 【回顧復習】 1). Review the language points learned in the last unit. 2). Read the new words and expressions used in the passage to make sure of the understanding of the passage. 【新知識學習】 Step1. Warming up ＆Pre-reading：： 1. Do you often use computers? Do you really know computers? ____________________________________________________________________ Look at the pictures in P17 and answer the three questions.. 1) 2) 3) Step2. Skimming: 1. Look through the passage to find out who the speaker is. 2. What is the main idea of the whole passage? （ ） A. The early development of the computer. B. The late development of the computer. C. The importance of the computer. D. The history of the computer. 3. In what order is this passage arranged(安排）? 4. Which type / style does the text belong to ? A. Description(描寫) B. Narration(敘述) C. Exposition(說明) D. Argumentation(議論) 4 . The writer use the title WHO AM I . What kind of literary devices (修辭)does the text use? Step3. Fast- reading & Careful-reading: 1. Read the text quickly to find the topic sentence of each paragraph. 2. Read each paragraph carefully and find out the supporting details for each topic sentence. ? Paragraph one Topic sentence ? Supporting details 1.calculating machine(1642 in France) 2. 3. 4.PC 5. . ? Paragraph two Topic sentence ? Supporting details tubes 2. 3. 4.network ? Paragraph three Topic sentence ? Supporting details ?1. communications 2. 3. 4. robots 5. 6. 7. space rockets 3.Read the text again and do the True or false exercises: 1.Alan Turing built an Analytical Machine to solve any mathematical problems. ( ) 2.People began to realize that the computer got cleverer and quicker with time passing. ( ) 3.The computer began to serve the human race since it was brought into people’s homes. ( ) 4.Since the 1970s, the computer was used by people around the world through the Internet. ( ) 5. The larger the computer is, the more memory it has. ( ) 【當堂達標】Summary I was born as a ___________ machine in 1642. When I was young, I was good at____________ difficult sums. About 2 hundred years had passed before I could think _________ and produce_______ answers. At that time, I was called an ___________ machine. In 1936, I was built as a ___________ machine . I had the ability to _______any mathematical problem. From then on, I grew rapidly both in _______ and memory. Later I stored my memory on __________instead of in _____. I became _______ in size but _________in intelligence. As time went by, I became even smaller, for I put my memory on a very small ______, which made me become PC and laptop. In the 1960s, I could be connected with other computers by a ___________. From then on, I was able to share my knowledge with others through the _____ _____ ______. After that, I had many new______________. Now, I am glad to serve human beings as a ________ _________ and a pleasant ___________. 【反思提升】 Discussion: 1)How do you usually use computers in your daily life? ____________________________________________________________________ ____________________________________________________________________ 2)Work with your partners to list some advantages and disadvantages of the internet. Step4 【Homework】 Read though the text, pay more attention on new language points. Finish the exercises on the newspaper about the text. Step 2. 1. It’s a computer 2. D. 3. time 4.C 5. Personification Step 3 Over time , I have been changed quite a lot Analytical machine ; laptop These changes only become possible as my memory improved . Transistors ;small chips Since the 1970s many new applications have been found for me Finance trade mobile phones medical operations F T F T F Calculating simplifying logically quicker analytical universal Solve size transistors tubes smaller higher chip network WorldWideWeb applications devoted friend helper 111