Unit3Computers阅读及语言点.ppt

Unit 3 Computers,Period 2 Reading,robot1.rmvb,Earliest computer,Nowadays computer,How does it change?,Who am I ?,Skimming:,1.who is the speaker ?,2.Whats the passage about?,Its about the history of computer.,Read the passage again. Find the topic sentence of each paragraph and the supporting details. Paragraph 1: Over time I have been changed quite a lot. 1. calculating machine 2. analytical machine 3. universal machine 4. laptop,Skimming:,Q1: How did the computer work as an Analytical Machine?,The computer followed instructions from cards with holes.,Paragraph 2: These changes only became possible as my memory improved. 1. tubes 2. transistors 3. chips 4. network 5. World Wide Web,Paragraph 3: Since the 1970s many new applications have been found for me. 1. communications 2. finance 3. trade 4. robots 5. mobile phones 6. medical operations 7. space rockets 8. providing a life of high quality,2. Which sentence can be replaced (代替）in the passage by the following? Later, I become so clever that I can remember everything you told me. Over time my memory has developed so much that, like an elephant, I never forget anything I have been told.,Summary A topic sentence sets out the main idea of a paragraph. A topic sentence is usually the first or last sentence of a paragraph.,Time,The computer began as a calculating machine,1822,Alan Turing wrote a book to describe how computers could be made to work and built a “universal machine”,Computers had new transistors and became Small and thin.,1960s,Computers were brought into peoples homes,Computers connect people all over the world together.,What is the order of the text?,True or False,Alan Turing built an Analytical Machine to solve any mathematical problems. People began to realize that the computer got cleverer and quicker with time passing. The computer began to serve the human race since it was brought into peoples homes. 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.,F,T,F,T,F,a universal machine,its birth,I became small and thin but I got cleverer and cleverer, quicker and quicker. And my memory became so large that I couldnt believe it!,correct the wrong sentences,Fill in the 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_ _, I have been made _ _ _ but I got _ _ _, _ _ _. In the 1960s they gave me a family_ _ _ _. Now people call it the Internet. I was _ _ _ _ in the 1970s.So I became PC. Since my birth I have truly been built to serve the human race.,calculating machine,Analytical Machine,universal machine,gone by,smaller and smaller,cleverer and cleverer,quicker and quicker,connected by a network,brought into peoples homes,debate,Have bad effect on study,A waste of money,A waste of time,Learn,Communicate,Entertainment,Improve,advantages we can communicate with friends listen to the music see films & watch news play games do shopping save a lot of time do a lot of useful things,Disadvantages Some people especially the teenagers abandon (沉迷于) themselves to the computer games and chatting on the Internet. As a result, they have little time to study . Some people use the computer wrongly,There is no doubt that computer has two sides ,too. If we make good use of it, it will make our lives more colorful and convenient. But dont lose yourself in playing computers. Just remember: Keep fit, study well and work hard.,Alan Turing,calculating machine,PC (desktop /notebook),analytical machine,universal machine,artificial intelligence,Internet,completing the chart below.,Charles Babbage,The “father” (inventor),The history of computer,Suppose you are a reporter. Now you are interviewing Mr. / Miss Computer. Sample questions:,What do you like to eat? What are your hobbies? What is your newest function(功能)? Can you say something about your future plan? etc., ,Role-play, 词语归纳,1.Discuss what they have in common (P17)讨论他们有什么相同之处。,common knowledge：人所共知的事实 common sense：常识 have.in common：与有共同之处 in common with：和一样 (like) have little/nothing in common：没有什么/没有相同之处, 即学即练,A根据括号中的提示完成下列句子 (1)Dont relate me to him. We_ (根本不同). (2)Its not necessary to avoid talking about your relationshipit is_(人尽皆知) already. (3)I suddenly felt we _(有许多相似之处) 答案：(1)have nothing in common (2)common knowledge (3)had a lot in common,重点句型 I developed very slowly and it took nearly two hundred years before I was built as an analytical machine by Charles Babbage. (P18)我发展缓慢，差不多两百年后，查尔巴比奇才把我制成了一台分析机。 句型：It takes/took some time before.过了多长时间才 It takes several years before a newspaper starts to make money. 一份报纸要赚钱需要好几年时间。,before用作连词，引导时间状语从句，本意为“在之前”，但在句子中，根据需要常可表示“还没来得及就；之后才；不久就；趁着”等意思。常用于下面的句式： It be 时间段 before从句，意为“(多长)时间之后才”；,It be 否定形式 long before从句，意为“不久就会”； 时间段 has passed/gone by before从句，意为“当时，(多长)时间已经过去了”。 (1) we know the full results. 再过些时候我们才能知道全部结果。朗文,It will be some time before, 模仿造句,(1)过了很长时间救援队才赶到灾区。 _ (2)过了三年，他才找到女儿。 _,It took a long time before the rescue team arrived at the disaster area.,It took three years before he found his daughter.,直通高考看看高考怎么考 (1)The girl had hardly rung the bell_the door was opened suddenly，and her friends rushed out to greet her.(2010福建卷，26) Abefore Buntil Cas Dsince 解析 考查从属连词。句意： 这个女孩几乎没来得及按门铃门就突然被打开了，她的朋友们冲出去欢迎她。选A项。B、C、D三项在句中不合逻辑，故排除。 答案 A,(2)John thinks it wont be long_he is ready for his new job.(2010陕西卷，20) Awhen Bafter Cbefore Dsince 解析 考查状语从句。所填词引导状语从句，构成It(will)be时间段状语从句，意思是：过多久才。 答案 C,(1)so.that.句型的常见形式： soadj./adv. thatclause soadj.a/an 单数可数名词thatclause somany/much/few/littlen.thatclause (2)such.that.句型的常见形式： sucha/anadj. 单数可数名词 thatclause suchadj. 复数可数名词/不可数名词 thatclause,(3)so.that.意为“如此以至于”，只能引导结果状语从句；而so that意为“结果是；以便；目的是”，既可以引导结果状语从句，也可以引导目的状语从句。so that引导目的状语从句时，从句中常使用can/could/may/might/will/would等情态动词；引导结果状语从句时，从句中一般不用can/may等词，在so that前可以有逗号，意思是“因此；所以”。 (4)在so/such.that.的常见句型中，当so./such.置于句首时，主句要用部分倒装语序。,(1)Shes she has to have her clot