人教版高中英语必修二 Unit 3 book 2 unit 3 computers reading
高中英语 Unit 3 Computers课件 新人教版必修2
• 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
quicker
dealing with …, Function: calculating communicating with… clever People’s opinion: simple-minded & useful
True or False
1. Alan Turing built an Analyticalmachine to a universal Machine solve any mathematical problems. F 2. People began to realize that the computer got T cleverer and quicker with time passing. 3. The computer began to serve the human race since it was brought into people’s homes. F its birth 4. Since the 1970s, the computer was used by T people around the world through the Internet. 5. The largersmall and thin is, thegot cleverer and I became the computer but I more memory F it has. cleverer, quicker and quicker. And my memory became so large that I couldn’t believe it!
高中英语人教版必修二unit3Computerspart3单词课件
Thanks for your listening!
【用法归纳】
由以上句子可知，signal词性为
v.
，搭配为
signal to sb. 向某人示意 ，
signal to sb. to do ， signal for sth.。
示意某人做某事 示意要某物
03 signal
③set/give out a signal 发送 信号 ④traffic signal(s) 交通 信号(灯) ⑤a strong/clear signal 明确的 信号 ⑥a danger/warning/alarm signal 危险/警告/报警 信号
（设定目标）
③A year later, I achieved/reached my goal. 实现目标
(
)
【用法归纳】
n.
可数
由①-目③可标知，，goal的词s性et为a goa，l 并且achiev（ed可/r数eaocrh不e可d a数g）oa，l
意思为目的 ，搭配有
，Байду номын сангаас
。
02 goal
④Liverpool won by three goals to one. （ 分数 ）
unit 3 Computers
part 3
导
01 anyhow 02 goal 03 signal 04 in a way 05 aris
e
思
Choose the best answers according to the passage. Fill in the blanks.
议
Have a discussion with group members.
人教版高一英语必修2Unit 3 Computers 全套课件
Difficult Points
1. the understanding of the technological items;
2. Master the phrases which are related with time; 3. Have the ability to express own ideas and tell the reasons of your point.
Important and Difficult Points
Important Points
1. Understanding the history of the computer and its broad application. 2. Able to tell an event according to the time. 3. Have the ability to express own ideas and tell the reasons of your point.
Expressions:
from….. on so… that… in a way as a result human race with the help of
deal with
watch over
Functional Items
1. Making decisions
2. Giving reasons
Lead-in
Look at these pictures. What are the inter-relationships of them? Abacus
An ancient calculating tool of China which has thousands years’ history.
高中英语人教版必修2+Unit+3+Computers+period+1+教案.doc
新课标高中英语必修2 Unit 3 Computer 全单元教案M2 Unit 3 ComputerPeriod 1:Warmin/g up(WHO AM I?)Warming upThis section is an introduction to the topic．It is to get the students thinking about the different ways computers can be made．Do this part of the lesson in pairs and as a speaking activity．Warming up by talking about computerLook at the pictures on page 17. What are they? What do they have in common? Yes, they are computers. Then what is a computer?A computer is a machine which stores knowledge in its memory and does calculations on that knowledge. This knowledge is stored in symbols; it is called data.A computer usually has a monitor to show results. However, some computers can speak; these computers can be used for voice mail.Draw on the blackboard a diagram to illustrate the influence of the computer and the Internet over the school education．Below is a diagram you may like to use．Ask students to look at the diagram and consider, ”What changes have computers and the Internet brought to schools? What changes will they bring to schools in the future?”Ask the Ss to work in groups and to make a list of the possible changes they can think of．When most of the groups have their lists ready, the teacher can hold a class discussion．Write down the major changes the students think of under / beside the diagram．The teacher can add one or two changes that may affect their own teaching．For example, “Computers and the Internet can help busy parents contact teachers by email．”The teacher can end the task with a brief s ummary, or hold a further discussion to find out students' personal opinions about the changes．For example, ask them, “Do you like all these changes? Why and why not? What changes do you like / dislike?”Some information:计算机室A computer frequently requires a boot device. The boot device contains the computer’s operating system and data. Computer programs can be installed onto a computer. Some people think that computers are less useful if they do not have access to the Internet. They think this because the Internet allows the computers to send and receive data and email across the world.曙光3000巨型计算机A computer is now almost always an electronic device. It usually contains materials which are toxic; these materials will become toxic waste when disposed of. When a new computer is purchased in some places, laws require that the cost of its waste management must also be paid for. This is called product stewardship.In some countries old computers are recycled (melted down) to get gold and other metals. This is dangerous, because this procedure releases the toxic waste into the water and soil.Computers become obsolete quickly. Very often they are given away and new ones replace them within two or three years. This makes the problem worse. Computer recycling is thus common. Many projects try to send working computers to developing nations so they can be re-used and will not become waste as quickly. Computer jargon 计算机行话Computer jargon means words to do with computers and surrounding topics. Knowing what these words mean can help you know more about computers. Some people use these words to impress other people (Also known as buzzwords). Examples of jargon:Bit - The smallest data unit, can either be a “0.” or a “1.”.Byte - unit of data. See also Kilobyte, Megabyte, Gigabyte and NibbleCPU –Central Processing Unit, Another name for processorData - Information stored on a computerDisk - A place to store data.Email - Electronic mail.GHz - Gigahertz. Used often incorrectly to describe the speed of a processor. But with some 2.4 GHz processors faster than 3.6 GHz ones, it is clear that it is just a salesman trick.Load - Get data from a diskNibble - Half a ByteSave - Put data on a diskRAM – random-access memory(随机存取存储器), the more the better.USB - Universal Serial Bus（通用串行总线，一种简化了插接多种附件的薄型插座）WWW - World Wide Web, part of the InternetPeriod2-3 Pre-reading & ReadingPre-readingThis can be a continuation of the Warming Up．Let the students discuss the questions set out in the Student's Book．1. Questioning and answering What do you know about computer?●Electronic machine capable of performing calculations and other manipulations of various types of data, under the control of a stored set of instructions. The machine itself is the hardware; the instructions are the program or software. Depending upon size, computers are called mainframes, minicomputers, and microcomputers. Microcomputers include desk-top and portable personal computers.●A multi-function electronic device that can execute instructions to perform a task.●A device that accepts information, processes it, and supplies an output. A computer usually contains memory, a control unit, arithmetic and logical units, and a means for input and output.●a programmable har dware component that is controlled by internally stored programs and that can perform substantial computations (including arithmetic and logic operations) without human intervention. A computer typically consists of one or more processing units, memory units, and associated peripheral input and output devices.●Related to automation and electronic data processing. The Library of Congress commonly classes most computer-related books in HF5548, QA75-76, Z52, T385, and some TK ranges.●a machine for performi ng calculations automaticallycalculator: an expert at calculation (or at operating calculating machines)●A computer is a device or machine for making calculations or controlling operations that are expressible in numerical or logical terms. Computers are constructed from components that perform simple well-defined functions. The complex interactions of these components endow computers with the ability to process information. If correctly configured (usually by, programming) a computer can be made to represent some aspect of a problem or part of a system. If a computer configured in this way is give2. Discussing and sharing How have computers changed our lives?Someday soon, if you haven’t already, you’re likely to plug into the computer network nation growing in our midst. Computer terminals, or small computers connected via modem (a modulator/demodulator circuit for encoding/decoding computer chatter) to ordinary telephone lines, should be as ubiquitous as the telephone itself. They’re a much more use ful and humane tool than the phone, and with corporate America behind them the networks will be everywhere----changing our lives more than any technology since the automobile.Joining a computer network is the same as joining a community. Small systems are like villages, where new members are formally welcomed. The larger networks, the Source and CompuServe, for example, are cities-anonymous, full of life and events, but difficult to fit into.II. ReadingThis is the purpose of the reading and so it is important that the students learn to use all the clues in the text to help them understand the gist of what they are reading．So encourage them to look at the pictures and the heading and guess what the text might be about．Then ask the class to read the passage silently．Make sure the students have the chronology of the development of computers in their minds．Ask them:1. Listening and reading to the recording of the text WHO AM I?Turn to page 18 and listen and read to the recording of the text. Pay attention to the pauses, pronunciation and intonation of the native reader.2. Reading aloud and underlining expressionsNow we are to read the text once again and underline all the expressions in the text. Put them down into your notebook after class as homework.Collocations from WHO AM I?begin as…, a calculating machine, be built as…, follow instructions from…, sound simple, at the time, a technological revolution, write a book, make…work, solve problems, become huge, had artificial intelligence, go back t o…, the size of…, go by, change size, become small and thin, get quick, stand there by oneself, be connected by…, share information by…, talk to…, bring…into…, deal with…, communicate with…, serve the human race3. Reading, identifying and settlingAttention, please! It is time to skim the text one more time and identify the difficult sentences. Try analyzing the structures of the difficult sentences and discuss them among your group members. You may also put your questions to me for help.Chat （online）（在线）聊天To chat is to talk about ordinary things that are not very important. You can chat to one person or to many people. People also use this word now for parts of the Internet where we can talk with many different people at the same time. Usually, you chat on the internet in a chat room or messaging service like AOL(American On-Line) Instant Messenger (AIM), Yahoo Messenger, or MSN Messenger.IV. Closing down by doing comprehending exercisesTurn to page 18 and in pairs do the comprehending exercises No. 1 and 2. Reading and transferringScan the text for information to complete the table below, describing the development of computer.In 1642In 1822In 1936In 1960sIn 1970sAnswer key:1642: The computer began as a calculating machine．1822: The Analytical Machine was made by Charles Babbage．1936: Alan Turing wrote a book to describe how computers could be made to work．1960s: Computers had new transistors and became smaller．1960s: The first family of computers connected to each other．1970s: Computers were brought into people's homes．Now: Computers connect people all over the world togetherV. Explanation1．in common: for or by all of a group 共同的；共有的；共用的。
人教版(新课程标准)必修2Unit3Computers复习课件
14.intelligent robots 智能机器人 15.make a list 列清单 16.artificial intelligence 人工智能 17.be part of an android football team 成为机器人足球队的一员 18.have a good shot for a goal 有好的机会射门
目录
14.watch over看守；监视；守护；照看 watch out (for...) 注意；谨慎 (……) watch for 守候；当心；等待 keep a close watch on 密切监视 be on watch 值班；看守
目录
1.with the help of my electronic brain 在我电子大脑的帮助下 2.from then on 从那时起 3.after all 毕竟；终究 4.what they have in common 他们拥有的共同之处 5.share my knowledge with others 与他人分享我的知识 6.work out a list 列出清单
目录
3.sum n.总数；算术题；金额vt.总计，概括 vi.合计 •in sum 总而言之 a large sum of 一大笔；大量的 •sum up 总结，概括 eg. They donate a large sum of money to the Red Cross every year. 他们每年都向红十字会捐献大笔的钱。
目录
12.arise vi.(arose，arisen；arising)起身，起来(stand up)；起床(get up)；出现； 产生；产生(appear，happen，occur) arise from/out of... 由……引起/产生 arise from... 从……上站起来 eg. (北京卷书面表达)I didn’t expect our tea culture should be so attractive and therefore, a sense of pride in my mind arose. 我没想到我们的茶文化会如此吸引人，因此，我心中升起了自豪感。
精品最新 高中英语人教版必修2 Unit 3 Computers 课件
An abacus
A calculator A huge computer
A notebook
A PC Computer (laptop) A PDA
• Learn about the development of computers by referring to the pictures and the given material;
• Write about the advantages and disadvantages of using computers by individual（个人的） and group work.
On one hand, … On the other hand, …
Computers
-Vocabulary, Warming up &
Writing Unit 3 Book 2 人教课标版
Objectives
• Enlarge the vocabulary about computers by a quiz（小测验） and the combination （结合）with the practical use;
• do word processing （进行文字处理）;
• take distance education（远程教育）;
• download resources online.
Activity 3 Group work 1. People say computers bring us more
高中人教版高中英语必修二unit_3computer精品ppt课件
Paragraph I: lot.
Over time I have been changed quite a
paragraph II: These changes only became possible as my memory improved.
paragraph III: Since the 1970s many new applications have been found for me.
Charles Babbage 1800s analytical machine
Alan Turing 1836 universal machine
• calculator • laptop • simplify • operator • logical • technology • revolution • mathematical
1940s Computers had _____gr_o_w_n_a_s__l_a_rg_e_ aasroom.
1960s A family of computers was connected by a network.
1970s now
First as _ __a__PaCnd then ___a_s_a__la_p_to_p__ computers were used
about18 The __a_n_a_ly_t_ic_a_l machine was made by Charles
22
Babbage.
Alan Turing ____wr_o_te_a_b_oo_k__a_bohuotw computers could be made to 1936 work as universal machine
人教版高中英语必修2unit3课文知识点详解
即学即用 （1）—Excuse me,could you tell me the way to
the British Museum? —Sorry,I’m a stranger here. —A. A.Thanks anyway B.It doesn’t matter C.Never mind D.No problem 解析 A.不管怎样，还是要谢谢你。B.没关系。 C.不要紧；不用担心。D.没问题。句意为： ——打扰了，你能告诉我去大英博物馆的路 吗？——抱歉，我在这儿是个陌生人。——不 管怎样，还是要谢谢你。
（3）mark含义广泛，指事物留下的深刻印记，比 sign更侧重于区别性或指示性的标志。 （4）symbol指被人们选出的物体或图案，用来代 表 另一事物，作为该事物的标记或象征。 The dove is the symbol of peace. 鸽子是和平的象征。
即学即用
（1）The soldiers are hiding in the trees and
raised aised raising
即学即用 (1)我本来想事情会很容易，但是出现了许多问题。
I thought it would be easy,but a lot of problems have arisen . (2)事故由粗心大意引起。 Accidents arise from carelessness.
是我的一切。
with the help of my electronic
brain which neverwhfiocrhgentesvearnyftohrignegt是s 状语，
说an明yt主hi谓ng部分的伴随状况。在这个with短语中，
包含一个定语从句
人教版高中英语必修二(Book 2 Unit 3)
人教版高中英语必修二（Book 2 Unit 3)Unit 3 Computers核心单词1. common adj. 共同的，普遍的；常见的常用结构：in common 共有，公用(在句中多作状语）have nothing/little/a lot/something in common (with) sb. 与某人没有/许多/有些共同之处in common with 和……一样common sense/knowledge 常识common welfare 公共福利易混辨析common/ordinary/usual/normalcommon 指"共有的，公共的；共同的；常见的"。
反义词为rare。
common作"普通的"讲时可与ordinary换用。
如"普通人"也可以说成common people。
ordinary 意为"普通的，平淡无奇的"，指没有什么特别的地方。
usual 意为"平常的，通常的，一向的"，含惯例之意。
normal 意为"正常的"。
Jane and I have nothing in common.=I have nothing in common with Jane. 我与简毫无共同之处。
The problems are common to all societies. 这些问题是所有社会的通病。
In common with many young people, he prefers pop songs.和许多年轻人一样，他喜欢流行歌曲。
He is in ordinary clothes. 他穿着平常的衣服。
We meet every day at the usual place. 我们每天在往常那个地方见面。
单项填空Harry visited the bookstore every week. He became sucha______________customer that the bookseller gave him some books as presents.A. commonB. normalC. usualD. average解析：选C。
高中英语 2Unit3Computers课件 新人教必修2
即学即用 （1）这些广告旨在吸引年轻的单身消费者。 The advertisements attract young single consumers. （2）据估算，去年至少丧失了47 000个工作。 at least 47,000 jobs were lost last year.
from...on
as a result
so...that
in a way
with the help of
deal with
watch over
in common
make up
after all
Ⅲ.典型句式运用 1.I developed very slowly and it took nearly two hundred years before I was built as an analytical machine by Charles Babbage.我发 育缓慢，差不多到了两百年之后，查尔斯·巴比 奇才把我制成了一台分析机。 （1）“It took/was+一段时间+before 从句”是一个固定句型,意为“ ”。 （2）before用于这类句型时的结构还有： ①It didn’t take/was long (或一段时间) before...过了不久（一段时间）就……
考点提炼
过了……后才……
②It will take/be long (或一段时间) before...要过很久（一段时间）才…… ③It won’t take/be long (或一段时间) before...不久（一段时间后）就会…… 2.As time went by,I was made smaller.随着时间 的推移，我被制造得越来越小。 句中的as是连词，引导 从句， 意为“ ”或“ ”。 表示“随着……”时，也可以用with,但with后只 接名词短语。
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Skimming
Reading Comprehension I
2. What’s 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.
6. I never forget anything I have been told.
7. I was able to share my knowledge with others through the World Wide Web.
8. My goal is to provide humans with a life of high quality. 9. I am now truly filled with happiness. 10. I am a devoted friend and helper of the human race.
1. Alan Turing built an Machine to a Analytical universal machine solve any mathematical problems. F 2. People began to realize that the computer got T cleverer and quicker with time passing. 3. The computer began to serve the human race since it was brought into people’s homes. F its birth 4. Since the 1970s, the computer was used by T people around the world through the Internet. 5. The largersmall the computer the more memory I became and thin is, but I got cleverer and F it has. cleverer, quicker and quicker. And my memory became so large that I couler, 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.
The computer had grown as large 1940s as a room. The first family of computers was 1960s connected to each other. Computers were used in offices 1970s and homes. Computers connect people all over Now the world together.
Q1: How did the computer work as an Analytical Machine?
The computer followed instructions from cards with holes.
2. Which sentence can be replaced (代 替）in the passage by the following?
Paragraph 1 Topic sentence Over time I have been changed quite a lot.
Supporting 1 calculating machine details 2 analytical machine 3 universal machine 4 PC 5 laptop
dealing with …, Function: calculating communicating with… clever People’s opinion: simple-minded & useful
Fill in the blanks: calculating ________ machine I began as a _______ in 1642 in France. In 1822 I was built as an Analytical Machine Then in 1936 Alan Turing _____ ______. universal machine wrote a book and built a _______ ______. gone ___, by As the years have___ I have been made smaller and smaller and cleverer ___ ___ ____ but I got cleverer ____ ____ ___, quicker quicker ____ and __ ____. In the 1960s they gave me a family____ __ __ _____. connected by a networkNow people call it people’s the Internet. I wasbrought _____ into ____ ____homes ___ in the 1970s.So I became PC. Since my birth I have truly been built to serve the human race
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.
True or False
What can we know from the following sentences
1. Over time I have been changed quite a lot.
2. I began as a calculating machine in France in 1642.
3. It took nearly two hundred years before I was built as an analytical machine.
Q3: how did computer change in its size, intelligence, speed, function? And how about people’s opinion? Size: smaller Intelligence: cleverer
Speed:
quicker
Scanning
Reading Comprehension II
Finish the timeline below. The computer began as a 1642 calculating machine． The analytical machine was made by 1822 Charles Babbage. The computer grew rapidly both in 1936 size and in brainpower.
Reading
Reading Comprehension I
Skimming: Go over the story to find out
who the speaker is. Write down 3 sentences to It is a computer. support your idea. ● I was built as an Analytical Machine by Charles Babbage.” ●”My real father was Alan Turing ....” ● I was able to share my knowledge with others through the World Wide Web.
Reading Comprehension III Match the main ideas and the paragraphs. These changes only became Para 1: possible as my memory improved. Para 2: Since the 1970s many new applications have been found for me. Para 3: Over time I have been changed quite a lot.
3) What can you infer from the text? A. The computer has artificial intelligence. B. The computer changes a lot over the years. C. The computer was not connected by a network until in the early 1960s. D. Now the computer can only be used to deal with information.
Paragraph 2
Topic sentence These changes only became possible as my memory improved. Supporting 1 tubes details 2 transistors 3 chips 4 network 5 World Wide Web