人教版高中英语 必修二 Unit3 《Computers ---Warming up &Reading》 课件 (共25张PPT)
summary
Listen to the tape and fill in the blanks
I began as a c_a_l_c_u_la_t_ingmachine in 1642 in France. In 1822 I was built as an A__n_a_ly_t_ic_almachine. Then in 1936 Alan Turing wrote a book and built a _u_n_i_ve_r_sal machine. As the years have_g_o_ne__b_y , I have been made _sm__a_ll_e_r . There were times when my size _t_o_ta_l_ly_ changed. And my memory became __s_o__ large _t_h_a_t_ I couldn’t believe it. In the 1960s they gave me a family_c_o_n_n_e_c_te_d_ by a network. I was able to _sh__ar_e__m_y__k_n_o_w_le_d_g_e_with others through the World Wide Web. Since the 1970s many new applications _h_a_v_e_b_e_e_n_f_o_u_n_d_ for me.
• 3._________________ (modern)
My usage: 1. ____________ Changes in2.f_o_u_n_c_t_i_o_n____
3.____________
calculating---dealing with …, communicating with…
(Using BASIC.) Q3: What does “others” (2.6) refer to?
(Other computers.) Q4: Why did people think the computer was simpleminded?
(Because the computer was made as a calculating machine and was used to solve mathematical problems.)
serve the human race.
(4 )A PC
1. ____________ 2.____________
( 2 ) analytical mac3h._i_n_e_________
( 5 ) laptop
( 6 ) robot
( 1 ) calculating machine
( 3) universal machine
Changes in time
1642 The computer began as a calculating machine．
The Analytical Machine was made 1822 by
AClanhaTrurleinsg wBroatbe ba abgooek. to describe how
Heavy! Difficult! Hard! Tired!
1. Easy! 2. Fast! 3. Free!
What do you know about computer?
For example,can you name some parts of computer?
Label each part
together.
True or false
1.True or False: 1). Alan Turing built an Analytical Machine to solve any mathematical problems. F 2). People began to realize that the computer got cleverer and quicker with time passing. T 3). The computer began to serve the human race since it was brought into people’s homes. F 4). Since the 1970s, the computer was used by T people around the world through the Internet. 5). The larger the computer is, the more memory it has.
Write out all the words you know about computers.
updat e
Internet
compute r
click
keyboard
Fast reading
1. Who am I? computer
2.Who was the first person to make the earliest
Earliest computer Nowadays computer
Analytical Machine
Changes in size smaller
• 1.n__o_t_v_e_r_y__b_i_g_
• 2._h_u_g_e______
(earlier) ( in the past)
smaller and thinner
Q4: Why did people think the computer was simpleminded?
Questions Q1: How did the computer work as an Analytical Machine?
(The computer followed instructions from cards with holes.) Q2: In which way did computers talk to humans?
（Using some of the following expressions in your discussion.）
I think that…
In my opinion…
I believe that… What’ s your reason?
Why do you think so? 1.They can be used for calculating. 2.They can deal with maths problems. 3.They are our friends. 4.They are useful and helpful. ……
erer an_d_c_le_ve_r_er_,q_u_ic_k_er_a_nd__q_u_ic.kerIn the 1960s they gave me a family_c_on_n_ec_t_ed_b_y _a_n_et_w_o.rk Now people call it the Internet. I was
3. computer?
(B)
A. Alan Turing B. Charles Babbage C. Charles
Turing
3.When was A. In 1822
the “universal machine” B. In 1642 C.1936
built?
(c)
Main idea: This is a short history of the _d_e_v_e_lo_p_m__en_t____ of computers. Topic sentences: Para 1
Over time I have been changed quite a lot. Para 2 These changes only became possible as my memory improved. Para 3 Since the 1970s many new applications have been found for me.
Unit 3 CБайду номын сангаасmputers
An abacus
A calculator
laptop
An abacus
A calculator
A desktop(PC) Huge computer
laptop
What’s next?
Palmtop(PDA) robot
Discussion
1. What do they have in common?
2.Written: 1). Do Ex. 1-3 on P19-20. 2). Retelll the development the computer
and the usage of the computer and the Internet.
F
Questions Q1: How did the computer work as an Analytical Machine?
Q2: In which way did computers talk to humans?
Q3: What does “others” (2.6) refer to?
hard disk
6 monitor
screen
5
keyboard
2
3
CD-ROM
4
mouse
modem
scanner
printer
speaker
Internet How useful computers are!
school work games emails music and films chat information photos shopping
人教版高中英语必修二unit3+Computers+教案3.doc
Unit 3 ComputersPeriod One Warming up and ReadingBy Zhang SuochengTeaching contents:Warming up; Pre-reading; Reading; Comprehending (Page 17-19)Teaching important points:1. Students are able to learn more about the history and basic knowledge of computers.2. Students are able to learn different reading skills. Teaching difficult points:1.Help students to improve their reading abilities.2.Students are able to express their opinions.3.Help the students learn to use personification,chronology and topic sentences when writingTeac hing methods:1. Task-based teaching and learning2. Cooperative learning3. DiscussionTeaching aidsThe multimediaTeaching aimsKnowledge aims:1. Students are able to learn the useful new words and expressions in this passage2. Students are able to know basic knowledge about computers.Ability aims:1. Help students to improve their reading abilities.2. Train the students’ability to collect usefulinformation from the Internet by themselves.Emotional aim:Guide the students to work hard to create more wonderful and convenient inventions for human beings.Teaching procedureStep One Warming up1. Talk about the importance of computer and the Internet.2. Cooperative learning: Show some pictures of the development of computers.Questions: 1. What can you see in the pictures?(abacus, calculator, huge computer, PC, laptop, PDA, robot)2. What do you think will be the next development?Discussion (pair work): What do they have in common, in your opinion?Some useful expressions: I think that…In my opinion…I believe that… What’s your reason? Why do you think so?Step Two Pre-readingAsk the students to predict what the text is going to be about from the title and the pictures.Step Three While-readingTask 1: Skimming the passage for the general ideaQ 1: What is the main idea of the passage?This passage is mainly about the history of the development of computers.Q 2. Who am I?I am a computer.Task 2: Scanning for detailed information.Read the passage and finish the timeline below. (Ex. 1 on Page19)Task 3: Listen and read aloudTas k 4: Read the passage again. In pairs find out the topic sentence of each paragraph and the supporting details. (Ex.2 on Page19)Question & Summary: How to find out the main idea of a paragraph quicklyA topic sentence sets out / explains the main idea of a paragraph.A topic sentence is usually the first or the last sentence of a paragraph.Step Four Post-readingTask 5: Guessing gamesFind the word or expression for each of the following meanings from the text according to the context.(Ex. 1 on Page 20)Task 6: True or False?1. The passage mainly tells us the history of the computer.2. The computer was considered simple-minded before it got artificial intelligence.3. Charles Babbage invented the first computer.4. Since its birth the computer has been built to take the place of the human race.Step Five Brief summaryWhat have we learnt in this class?1) some words about computerscalculating machine, analytical machine, universal machine, PC, laptop,tubes, transistors, chips, network, World Wide Web, communications, finance, trade, robots, mobile phones, medical operations, space rockets2)the short history of the development of computersgreat changes in size—from__________ to ___________great changes in memory—from___________to ___________great changes in function—from___________to ___________great changes in application—from___________to ___________3) some scientists relating to computers________________built the analytical machine.________________made the first computer.4) some good methods of writinga. in the first person—personification “Who am I? ”b. in an order of time—chronologyc. topic sentencesStep Six Discussion in groups of fourWork in groups of four and discuss the advantages and disadvantages ofcomputers.Step Seven HomeworkRead the passage again. Underline the words, phrases or sentences that you don’t understand, and try to solve the problems using context clues and the dictionary.Design on the blackboardUnit 3 ComputersPeriod One Warming up and ReadingMain idea of the passage:This passage is about the history of the development of computers.Topic sentences of each paragraph:Paragraph 1: Over time I have been changed quite a lot.Paragraph 2: These changes only became possible as my memory improved.Paragraph 3: Since the 1970s many new applications have been found for me.Summary: What have we learnt in this class?1) some words about computers2) the short history of the development of computers3) some scientists relating to computers4) some good methods of writinga. in the first person—personification “Who am I? ”b. in an order of time—chronologyc. topic sentences品味人生1、不管鸟的翅膀多么完美，如果不凭借空气，鸟就永远飞不到高空。
2019年人教版高中英语必修二unit3computersWarmingup共42张PPT语文
telephone
7. It is a machine, which you can use to type your homework, draw pictures, play games, watch movies, listen to music, communicate with your friends, gather information…
Personal Digital Assistant
Robot
Discussion:
What do they have in common? • I think that… • In my opinion…
Giving an • I believe that… opinion: • What’ s your reason?
floppy disc/disk
USB flash disc
MP4 player CD/VCD/DVD MP3 player
Hard disc:
移动硬盘
1 TB 固态硬盘
USB Flash disc
1T 硬盘
Other useful words and expressions
about computer:
E-mail E-pal
1.Help to do homework 2.Play computer games 3.Send e-mails 4.Listen to music 5.See movies 6.Chat 7.Search for information 8.Do shopping 9.Learn computer skills
Complete the sentences.
人教版英语必修二unit3 computers warming up PPT课件
4.What were you called in 1936?
.
A universal machine
1. Read the passage and finish the timeline below.
1642 The computer began as a calculating machine．
abacus
I am very small. I can be used for calculating. In China, a lot of students use me when solving mathematical problems.
Do you know who I am?
calБайду номын сангаасulator
PC laptop PDA
virtual keyboards keyboard-vest
What’s the main idea of the text? A. What a computer is. B. What a computer is used for. C. How the computer becomes popular. D. The history of the computer
Paragraph 2
Topic
These changes only became
sentence possible as my memory
improved
•tubes
Supporting •transistors
details
•chips
•network
•World Wide Web
Topic sentence
Unit 3 Computers教学设计 ( 人教高中英语必修2)
Unit 3 Computers本堂课包括Warming up 和 Reading 两部分。
他们是语言知识和文化意识的输入过程；是语言技能、情感态度和学习策略的培养过程，也是语言输出过程。
在整个教学过程中，它是培养学生阅读能力的主要过程，教学重点是阅读技能的培养、交际能力及情感态度的提升。
Warming up 部分根据每个人对电脑的看法不同让学生就“Do you like computer?”进行小组探究和讨论，从自身实际出发谈论自己的看法，有助于激发学生对于整个单元的学习兴趣。
Reading 部分（Computers ）主要讲述的是电脑的发展史，通过一系列问题的设置让学生能够在全面理解文章的基础上提高信息处理、加工和学习的能力。
Knowledge objectives:掌握以下词语和句型：Calculate, sum, solve, simplify, artificial, intelligence, revolution, reality, totally, application, finance, in common, over time, as a result, from···on, so···that. Ability objectives:训练学生一定的阅读技巧，使他们掌握一些有效的学习策略，从而提高阅读速度和篇章理解的准确性，并养成一定的自主学习能力；培养学生快速阅读的能力、捕捉信息的能力及运用语言进行交际的能力。
Emotion objectives:通过对“computer”的学习，启发学生思考电脑给我们带来的影响，从而以一种正确的方式利用电脑和网络资源；另外通过电脑的发展历程让学生意识到科技对生活的影响。
1. 教学重点：1.了解计算机的发展过程，进一步认识计算机的演变以及对人类的影响。
2.训练学生的阅读技巧，提高学生阅读速度和理解能力。
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。
新人教版高中英语必修二Unit_3_Computers-整单元课件精品ppt课件
I think they all can calculate something.It can deal with some maths problem.
I believe that they are our good friends.In our everyday life.we can not finish our work quickly without them. In my opinion ,people improve abacus,make it more useful and make it a computer.They are being used widely and conveniently in the world.
Monitor, mouse, keyboard, hard disc, floppy disc ,CD-ROM, printer, modem,
monitor is used to see your data on a computer . 1 A_________ hard disk or disk is the main device that a computer uses to store 2 A__________ information. printer 3 A _________is a machine for printing text or pictures onto paper ,especially one connected to the computer. keyboard is used to put data into a computer . 4 A_________ modem _is often used to connect computers to each other though phone 5 A________ lines . floppy disc 6 Data can also be stored in a ______________,which is small and can be carried easily. CD-ROM is a disc that contains computer data. It can store a large 7 A___________ amount of data. Compact Disk Read only Memory
人教版高中英语必修二模块2Unit3ComputersWarmingupandWordsandexpressions
1827 becameProfessorofMathematics,Camb ridge
1819 designedamachinetoworkoutadditionby itself
1822 completedthemachine Afterhisdeathacommitteefrom18th34eBritishAssociationmadeareportonthe design．Theysaidthathisidbeeagswanetrheecfoirrsetdctraanwdi“nmgsiogfhhtimsaanraklayvtiecraylcimo por antchangeinthehistoryofmamthpeumtearticsworkingsimilartologarithms...”B uttheywerewrong．Babbage'sworkchangedallmathematicsandbybeing thestartofcomputershechangedthewholeworld．
Discussion: (Whatdotheyhaveincommon?)
• Ithinkthat… • Inmyopinion… • Ibelievethat… • What’syourreason? • Whydoyouthinkso?
1.Theycanbeusedforc alculating.
withthehelpof watchover
1．做出决定（Makingdecisions）
Ithinkthat.... Let'smakeourdecision．
人教新课标必修二英语Unit 3Computers【教学设计】
Unit 3 Computers本堂课包括Warming up 和Reading 两部分。
他们是语言知识和文化意识的输入过程；是语言技能、情感态度和学习策略的培养过程，也是语言输出过程。
在整个教学过程中，它是培养学生阅读能力的主要过程，教学重点是阅读技能的培养、交际能力及情感态度的提升。
Warming up部分根据每个人对电脑的看法不同让学生就“Do you like computer?”进行小组探究和讨论，从自身实际出发谈论自己的看法，有助于激发学生对于整个单元的学习兴趣。
Reading部分（Computers）主要讲述的是电脑的发展史，通过一系列问题的设置让学生能够在全面理解文章的基础上提高信息处理、加工和学习的能力。
Knowledge objectives:掌握以下词语和句型：Calculate,sum, solve, simplify, artificial, intelligence, revolution,reality, totally, application, finance, in common, over time, as a result, from···on, so···that. Ability objectives:训练学生一定的阅读技巧，使他们掌握一些有效的学习策略，从而提高阅读速度和篇章理解的准确性，并养成一定的自主学习能力；培养学生快速阅读的能力、捕捉信息的能力及运用语言进行交际的能力。
Emotion objectives:通过对“computer”的学习，启发学生思考电脑给我们带来的影响，从而以一种正确的方式利用电脑和网络资源；另外通过电脑的发展历程让学生意识到科技对生活的影响。
1. 教学重点：1.了解计算机的发展过程，进一步认识计算机的演变以及对人类的影响。
2.训练学生的阅读技巧，提高学生阅读速度和理解能力。
高中英语 Book 2 Unit 3 computers warming up and Skiming课件
I think it is a washing machine
HI-TECH
mobile phone
air-conditioner
TV set
refrigerator
plane
car
digital camera
robot
calculator
notebook computer
How much do you know
about a computer?
Give the English name of the following pictures of the computer components (组件)
monitor
DVD-ROM
screen
modem
printer keyboard Host computer Floppy disk
scanner mouse
What is it in English??
mouse
鼠标
What is it in English??
Keyboard (键盘)
Underline the correct option to form compound words.
Example: search a) engine searchengine 1 key 2 web 3 on 4 down 5 soft 6 up 7 hard a) door a) design a) time a) road a) ware a) day a) data b) board b) light b) line b) food b) bear b) date b) disk c) pocket c) site c) sign c) load c) toy c) late c) system b) motor c) disk
人教版高中英语必修二unit3Computers
way to help him keep track3 of things he couldn’t remember.He
invented a software4 program that allowed him to create a document
that had links to other documents.He continued to develop his idea
万维网的出现彻底改变了世界，创造了大量的财富并从根 本上改变了人们的生活方式。而它的创始人英国计算机科学家 蒂姆·伯纳斯·李对于自己这一成果的现状并不满意。一起去了解 一下这位“万维网之父”吧！
Most people have never heard of Tim Berners-Lee.He is not nearly as rich or famous as Marc Andreessen，who is the founder of Netscape，or Bill Gates，whose name has become a well-known word.
识 点 reality n．真实；事实；现实totally adv.完全地；整个地
目 单 application n．应用；用途；申请network n．网络；网状物
标 词 mobile adj.可移动的；机动的finance n．金融；财经
explore vt.&vi.探索；探测；探究anyhow adv.(也作anyway)
知 重点 识 句型 目 标
易错 难点 语法
Computers
so...that...如此……以至于……
from...on从……时起
deal with处理；安排；对付as a result结果