高中英语 Unit 3 Computers Periods 3-5 Reading学案新人教版必修2

1、Unit3 ComputersPeriods 3-5 Reading一、【学习目标】1. 预读文章，了解计算机的发展历程，探索并思考其在当今社会的广泛应用。2. 认真再读文章，通过文章细节，列举电脑不同发展阶段的特点和重要事件。3. 朗读文章，划出文章中重要的词组和句型，并在小组内查资料，讨论互学，培养思考并合作的能力。4. 正确掌握文章重点词组和句型，能够进行有效仿写，最好能够自己运用句型造句。二、【自主预习】I. Fast-reading1. Look at the pictures on page18 and predict what the passage is mainly abou

2、t:_2.Scan the text and then answer the following questions.(1). Who is the speaker ?(2). Whats the passage about?(3). In which order is the text written? Careful-reading1. Finish the true or false questions.( )1.Alan Turing built an Analytical Machine to solve any mathematical problems.( )2.People b

3、egan 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 peoples 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

4、memory it has.2. Join the correct part of the sentence together1642 Computers were brought into peoples homes.1822 Alan Turing wrote a book to describe how computer could be made1936 Computers connect people all over the world together.1960s Computer had new transistors and became smaller.1970s The

5、computer began as a calculating machine.Now The Analytical Machine was built by Charles Babbage.III. Language points:A. Find the phrases in the text.1. 以开始2. 比任何人都快_3. 被认为是4. 某人被让做某事_5.随着时间的推移6. 给某人提供某物_7. 从那时起_ 8. 投入_B.【难句剖析】1. I developed very slowly and it took nearly two hundred years before I w

6、as built as an analytical machine by Charles Babbage.A. before conj. 用以表示从句动作发生之前的时间，译法灵活。【研读思考】1. It will be/take two years before I graduate from high school. 2. It wont be/take long before he goes abroad.3. It took/was three hours before he gave me the call.4. It wasnt/didnt take long before I we

7、nt through the book.【归纳拓展】It will be /take +时间段+before + 一般现在时态 _It wont be/take long before + 一般现在时态 _It was /took +时间段+before + 一般过去时态 _It wasnt/didnt take long before + 一般过去时态 _【实战演练】(1) It _ (没过多久) he regretted.(2) It _ (要过三年) we meet again.B before 不等就，来不及就 常与情态动词can ;could连用(3) _ (我还没来得及插话), h

8、e measured me.(4) _ (我还没来得及回答这个问题), he had shouted at me . 2. In 1936 my real father, Alan Turing, wrote a book about how I could be made to work as a “ universal machine” to solve any difficult mathematical problem.(1) 表示使役的动词make, let, have和表示感官的动词see, observe, notice, hear等后接不带to的动词不定式(即动词原型)做宾语补

9、足语，但如果变为被动语态，to要加上去。如 make sb do sth变为被动语态应为.sb be made to do sth.【实战演练】1.晚会上我们听他唱了一首歌。 We heard him _in the party.He was heard _ in the party.2.老师让他把英语书收起来.The teacher _ the English books right now.He was made _ the English books right now.(2) solve 解决（问题，困难等），解答 n. 解决办法，答案，谜底 _的解决办法3. As time went

10、 by, I was made smaller.as 是连词，意为“随着”，引导时间状语从句，意为“随着”(1) _ _(随着年龄的增长),we get wiser.(2) As _ (随着时间的流逝), they became close friends.【拓展延伸】with是介词，后接名词或代词构成with短语或with复合结构.(1) With _ (随着时间的流逝), they became close friends.go by （时间等）流逝; 走过，经过; (机会等)轻易的放过(1) Things will get better as time goes by.(2) Two s

11、trangers went by and I didnt notice them.(3) You should make good use of the chance, and should not _ _.(让它溜走)【拓展延伸】 go after go against go over . go through go in for go out 4. As a result I totally changed my shape.as a result 因此，结果as a result of 作为的结果； 由于(1) He was late _ the snow. (由于下雪)(2) He w

12、orked hard. _(结果), he passed the exam.【拓展延伸】 表示“由于”的短语还有because of; thanks to; owing to; due to，后面都接名词，代词，动名词。(3) (多亏了你及时帮助), I finished my work on time.5. And my memory became so large that even I couldnt believe it! sothat如此以至于; so是副词，后面要跟形容词或副词，用法如下： + 形容词或副词+ thatso + 形容词+ a(n) + 单数可数名词+ that +

13、many/few + 复数可数名词+ that + much/little + 不可数名词+ that(1) He got up so late _(没有赶上火车). (miss)(2) He is _ _(非常聪明的男孩)that he can learn English quickly. (so)(3) There are _ (这么多人) in the street that I cant get through.(4) The problem is so difficult _(没有一个人能解出来). (work)(5) There was _(没什么水了) that only lit

14、tle children were given some. (little)【拓展延伸】 a(n) + adj. + n. + thatsuch adj. + 不可数名词 + thatadj. + 复数名词 + that(1) He (得了如此严重的感冒) that he coughed day and night. (catch)(2) _ _(天气那么好) that we had a picnic together.6. Anyhow, my goal is to provide humans with a life of high quality. provide sb. with st

15、h 为提供 （= provide sth for sb）【实战演练】该宾馆为客人提供早餐。1. The hotel _guest. (provide)2. The hotel _breakfast. (provide)【拓展延伸】 supply sb. with sth. supply sth. to sb. 为提供四【课内达标】课文必背句型（请大家在10分钟之内背诵下面句子，你可以的！）1. I developed very slowly and it took nearly two hundred years before I was built as an analytical mach

16、ine by Charles Babbage.2. In 1936 my real father ,Alan Turing, wrote a book about how I could be made to work as a “ universal machine” to solve any difficult mathematical problem.3. By the 1940s I had grown as large as a room, and I wondered if I could grow any larger.4. As time went by, I was made smaller.5. I have been used in offices and homes since the 1970s.6. My memory became so large that even I couldnt believe it. 7. I have even been put into space