打包下载：高中英语人教版必修2 unit 3 Computers Grammar ppt课件(共5套)
英语必修二人教版 Unit3 Computers2.3+grammar (共23张PPT)
改错
1. A personal computer has bought by us. A personal computer has been bought by us.
2. Many problems has been found with our new computer. Many problems have been found with our new computer.
5. I _h_a_v_e_e_v_e_n_b__ee_n__p_u_t(put) into space rockets and sent to explore the Moon and Mars.
1. 现在完成时的被动语态构成：
have/has (not)+ been + 过去分词
2.现在完成时的被动语态特点：
★被动语态的构成：
一般过去时的被动语态： was/were +过去分词
现在完成时的被动语态：have/has + been + 过去分词
一般过去时态中的时间状语
★一般过去时常与具体的表示过去的时间状语 连用，如yesterday, last week, two days ago, at 10:00, in 1980, in the 2020s等。
3. All the preparation for the task ____, and we’re ready to start.
A. completed B. complete C. had been completed D. have been done
4. ---- How long ____ at this job? ---- Since 1990. A. were you employed B. have you been employed C. had you been employed D. will you be employed
高一人教课标必修2unit3-computers全单元的教案
高一人教课标必修 2unit3-computers 全单元的教案Period 1 ReadingThe General Idea of This Period： This period includes Warming up，Reading and Comprehending of Unit 3.It introduces the history and development of computers.From this period the students will learn more about computers.Meanwhile they can learn some reading strategies such as skimming and scanning. Teaching Aims： 1.Train the students’ reading ability. 2.Learn some useful words and expressions. 3.Learn more about computers. Teaching Important Points： 1.Help the students to understand the passage better. 2.Learn how to use some important words and phrases in this passage. Teaching Difficult Points： 1.How to help the students improve their reading ability and understand the passage better. 2.Learn how to use some important words and phrases in this passage. Teaching Methods： 1.Skimming the passage to get the general idea of the text. 2.Scanning to get the details from the passage. 3.Explanations and practice to help the students master some language points. 4.Discussion to help the students understand better what they’ve learned and to use the knowledge they’ ve learned in this period. Teaching Aids： 1.A tape recorder. 2.A multimedia. Teaching Procedures： Step 1 Warming up 1.Greeting the students as usual. 2.Introduce the topic of computers Show the five pictures （an abacus，a huge computer，a calculator，a PC，a notebook computer）and get the students name them in English.Through this task，st udents can have a general idea about what they are going to learn.Besides ， students are expected to have a discussion about what they have in common while looking at them.And they are required to use the given expressions in their discussion to express their ideas. T：B oys and girls，today I am going to introduce some machines to you.Now let’s see whether you can name them in English correctly，and talk about them.Now work together with your partners and try to find out what they have in common.1 / 17高一人教课标必修 2unit3-computers 全单元的教案Two minutes late，five students are asked to talk about them in class. S1：An abacus is an old calculating machine used in China until now. S2：A huge computer is built to solve some mathematical pro blems.But，in my opinion，it is too big. S3：A calculator is a new calculating machine which can solve a large number mathematical problems.And I think it is very convenient to carry and use，so we ofte n use it. S4：A PC is a personal computer，which can solve all kinds of problems and is widely used in offices，schools，shops，at homes，etc.now. S5：A notebook computer is a kind of useful computer which can be taken conveniently like a notebook.But I think it is too expensive. T：Quite good.It seems that you are all quite familiar with these machines.But can you tell what they have in common?Any volunteers? S6：Let me try.I think they all calculate something.They can deal with some maths problems. S7：I believe that they are our good friends.With their help we can finish our work quickly. S8：The 21th century is the century of information technology.As middle school students， we should try to learn how to use computers. T ： Well ， your opinions are all right.Indeed ， these machines all can calculate something.What’s more，from the abacus to the notebook computer，there is a long way.But now computers have already changed our lives greatly.But do you know more about computers and can you say something about how com puters have changed our lives. Step 2 Pre-reading Show the questions on the screen. T：Now，please have a discussion first，and then I’ll ask some students to report your work. After a few minutes. T：Now，who would like to answer the first question?Voluntee r! S9：I’ll have a try.I know that computers have developed from large machines.They have been made smaller and smaller，but work faster and faster.I really can’t imagine what they will be like and wh ether they can take the place of human beings in the future. T：Yes，this is really a big problem.I think you are all interested in computers，you may go on studying computers，and perhaps one day you will design your own computers and become the masters of computers.OK!Next question! S10：I think computers have changed our lives greatly.We use computers widely in our study， in our work.You are using the computer to teach us English，aren’t you?2 / 17高一人教课标必修 2unit3-computers 全单元的教案S11：In my opinion，in the modern society，using the computers means grasping a tool of controlling the world.We may communicate with each other from a very long distance.In short， we can not live freely without them.T：I agree with you.The computers are becoming more and more important in our lives.But learning more about computers is also importa nt， isn’t it?OK， let’s come to the reading passage “Who am I”.Step 3 Reading Task 1.Skim the passage for the general idea. T：Boys and girls，you will be given two minutes to skim the passage and try to find out who “I” am and get the general idea of this pa ssage. After two minutes. T：Time is up.Who would like to tell us who “I” am and give the general idea of the text to the class?Volunteer! S12 ： Of course ，“ I ” am the computer.The passage is mainly about the history and development of computers. S13：The passage is also about the relationship of computers and humans. Task 2.Scan for the details. T：Boys and girls，you will be given two more minutes to scan the passage and try to find out the answers to the following questions.Let’s see who can find out the answers most quickly and correctly. 1.Where were you in 1642? 2.What happened to you in 1822? 3.What were you called in 1936? 4.What did you get in the 1960s? 5.What happened to you in the 1970s? T：Have you finished? S14：I have.I was in France as a calculating machine in 1642. In 1822，I was built as an Analytical Machine by Charles Babbage. I was called “a universal machine” in 1936，as I could solve any mathematical problem. In the 1960s ， I was given a family connected by a network ， so that I could share information with others and we could talk to each other. In the 1970s，I was brought into people’s homes. T：You are so quick-minded that in such a short time you could find out all the answers to the questions.Your mind really works like a computer! Step 4 Comprehending Task 3.Fill in the timeline to remember the facts. T：But can you memorize facts like a computer?I am afraid you can not.But let’s try to remember the facts in the passage by filing in the timeline on Page 19，which，I am sure，will help you remember the facts easily. Suggested answers：Timeline 1642：The computer began a s a calculating machine. 1822：The Analytical Machine was built by Charles Babbage. 1936：Alan Turing wrote a book to describe how computers could be made. 1960s：Computers had new transistors and became smaller.3 / 17高一人教课标必修 2unit3-computers 全单元的教案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 together.T：Have you finished?If so，please check your answers yourself.I’m sure all of you have got them right.Now you can retell the history of computers easily with the help of the timeline， can’t you?Please have a try，boys and girls!Step 5 Homework 1.Recite the key sentences. 2.Prepare for Learning About Language. 3.Try to retell the text using about 100 words. Step 6 The Design of the Writing on the BlackboardUnit 3 Computers Period 1The general idea of the text： Questions 1.Where were you in 1642? 2.What happened to you in 1822? 3.What were you called in 1936? 4.What did you get in the 1960s? 5.What happened to you in the 1970s? Language points： 1.in common/have... in common （with）... 2.in one’s opinion 3.deal with 4.simple-minded 5.“as” and “with” 6.“There were times when... ”Step 7 Record after TeachingPeriod 2 Learning about LanguageThe General Idea of This Period： This period includes revision of the text、learning about language.From this period the students will learn how to use some of the key words and expressions in the text and do some exercises for consolidation，and learn how to use the Present Perfect Passive Voice. Teaching Aims： 1.Help the students to learn to use some useful words and expressions. 2.Enabl e the students to learn how to use the present perfect passive voice. Teaching Important Point： The use of the present perfect passive voice. Teaching Difficult Points： How to master the usages of some important words and phrases and the Present Perfect Passive Voice. Teaching Methods： 1.Task-based learning.4 / 17高一人教课标必修 2unit3-computers 全单元的教案2.Cooperative learning. 3.Explanation and practice. Teaching Aids： 1.A tape recorder. 2.A multimedia. Teaching Procedures： Step 1 Revision T：Boys and girls，in last period we learned something about the history and development of computers.Now who would like to retell the text with the help of these figures? S1：Let me try.In 1642，a calculating machine was used in France.Then in 1922，the Analytical Machine was made by Charles Babbage.It could follow instructions from cards with holes.In 1936，Alan Turing，the real father of computers，wro te a book to describe how computers could be made to work and built a “universal machine” to solve any mathematical ter，people discovered the computer had “artificial intelligence”.In the 1960s，the computer got his new transistors.Its size was totally changes at that time.And in the early 1960s， the first family of computers were connected to each other.In 1970s，computers have brought into people’s homes.Now computers have been used by billions of people to deal with information and communicate with each other around the world by the Internet. T：Congratulations!You’ve done very well.Now try to do the same to your partners，OK! Step 2 Words and Expressions Task 1 T：Please turn to Page 19 and finish Discovering Useful Words and Expressions.At first， look at Ex.1.From the reading passage，find the words and expressions with the following meanings.Now， ten students will be asked to give the words.Who can?Volunteers! Check the answers together. Task 2. T：Well done.Now please look at Ex 2.and complete the passage with some of the words above.Pay attention to the use and the forms of those words. The possible answers： ne twork so that went by totally truly simple-minded Anyway deal with Task 3 T：Please finish Ex.3.Look at the sentences on Page 20.Tick the right word.Then some of you will be asked to read the sentences one by one. The possible answers： 1.Life totally changed when I went to university. 2.I was amazed to find that I won the competition to design a new computer. 3.The competition was so exciting that we cheered all evening. 4.I was so excited at the thought of meeting Yang Liwei that I could not sleep. 5.Robots can be bought so cheaply that I gave one to each of my friends. 6.It was so unlucky that you lost your watch at the concert. Task 4 T ： Please turn to Page 56 and let’s finish Using Words and Expressions.First look at Ex.1.Read through the words in the right-hand box e some of them to name each part of a computer in the left-hand box.We have known about computer.But who can give us the exact5 / 17高一人教课标必修 2unit3-computers 全单元的教案names? The possible answers： 1.floppy disc 2.hard disc 3.scanner 4.modem 5.CD-ROM 6.monitor 7.keyboard 8.printer Task 5 T：Now please look at plete the sentences with some of the words in the right-hand box above.You can use each word only once.First do the exercise individually，and then check yo ur answers with your partners.And last seven students will be asked to report their answers to the class.The possible answers： 1.A printer is a machine for printing text or pictures onto paper，especially once connected to a computer. 2.A CD-ROM or disk is the main device that a computer uses to store information. 3.A monitor is used to see your data on a computer. 4.A keyboard is used to put data into a computer. 5.A CPU is often used to conne ct computers to each other through phone lines. 6.Data can also be stored in a floppy disc，which is small and can be carried easily. 7.A hard disc is a disc that contains computer data.It can store a large amount of data. Step 3 Grammar—The Present Perfect Passive Voice T：Boys and girls，now please pay attention to the following sentences in the text： 1.As the years have gone by，I have been made smaller and smaller. 2.Since then，my family and I have been used by billions of people to deal with information and communicate with each other around the world by the Internet. 3.I have truly been built to serve the human race since my birth. T：What verb tense is used in these sentences?And what verb voice is used in these sentences? Yes，the present perfect pa ssive voice is used in these sentences. Can you tell us the structure of the present perfect passive voice? Quite right.The structure of the present perfect passive voice is “subject＋have/has been done＋object”.The function of present perfect passive voice is indicating verbs’ the present perfect and the passive voice.OK，let’s practise the present perfect passi ve voice. Task 1 T：Please turn to P age 20.Let’s finish Discovering useful structures. At first，look at Ex.2.According to examples，change the following sentences into the present perfect passive voice.Put the verbs into the correct form. Suggested answers： 1.A new personal computer has been bought. 2.Many problems have been found with our new computer. 3.A PC has been built the way we wanted. 4.Our computer has just joined to the Inter net. 5.The computer has been used every day since we bought it. 6.A lot of e-mails have been written on the computer in the last year. Task 2 T：Class，let’s play a game called “What has been decided”.Now，get into groups of four.Your task is to decide what things have been decided for the class.Take turns to make the ideas as6 / 17高一人教课标必修 2unit3-computers 全单元的教案interesting and lively as you like.You may finish them according to EXAMPLES on Page 21，（or finish Ex.3 after class.）Then collect the ones you all like best and be prepared to tell them to the class.Suggested answers： S1：It has been decided that those who know of the computer will be asked to say something in class. S2：It has been decided that those who didn’t clean the blackboard will be asked to come into office after school. Task 3 T：Now，pleas e turn to Page 57.Finish using structures.First，look at Ex.1 and change the following sentences according to the model，and pay attention to the passive voice form.First do the exercise individually，and then check your answers with your partners.After that we’ll check the answers in class. Step 4 Homework T：OK，it’s almost time for a break.Now look at Ex.2 on Page 57.Translate the following sentences into English after class.The words and expressions in brackets may help you. Step 5 The Design of the Writing o n the BlackboardUnit 3 Computers Period 2The Present Perfect Passive Voice 1.As the years have gone by，I have been made smaller and smaller. 2.Since then，my family and I have been used by billions of people to deal with information and communicate with each other around the world by the Internet. 3.I have truly been built to serve the human race since my birth. Structure： “subject+have/has been done+object” Step 6 Record after TeachingPeriod 3 Extensive ReadingThe General Idea of This Period： This perio d includes revision of the text，Reading and speaking on Page 22、Reading task on Page 58.In this period the students will be involved in a speaking activity about designing an android after reading the story of Andy，an d learn something about the performances of a sporting robot of the 22nd century，Hua Fei in 78th Olympics and 79th Olympics，so that the students will not only improve their reading and speaking，but also their creative thinking. Teaching Aims： 1.Help the students to learn about the different ways of designing the robots and give their opinions to the class. 2.Enable the students to discuss to design their own robots. Talk about the different ways of designing the robots. Teaching Important and Difficult Points： How to design their own robots and report their designing to the class. Teaching Methods： 1.Task-based learning. 2.Cooperative learning.7 / 17高一人教课标必修 2unit3-computers 全单元的教案Teaching Aids： 1.A tape recor der. 2.A multimedia. Teaching Procedures： Step 1 Greetings Step 2 Reading （1） We’ve learned a lot about computers，but can you imagine that computers could be put into androids or robots.Think of the fun you c ould have!Now let’s first read the passage about a robot called Andy—what it looks like and what it can do on Page 22，and then we’ll have a des igning competition to see who will design the best robots. The students read the passage fo r several minutes. T：A few simple questions for you.What does Andy look like? What can it do? S2：Andy looks like a human.It is designed to play football games and can move and think like a human.Andy is really smart. T：I agree with you.Are you eager to design your smart robots?Now in small groups discuss how to design your own androids ， draw a picture of your androids and write down your design.You may refer to the following questions： 1.What would you like it to look like? 2.What are some of the things you would like it to do? 3.Do you want it to be like a man or a woman or neither? 4.How much would it cost? T：And don’t forget to use the following expressions in your discussion. I think that In my opinion... What is your reason? I have decided that... After several minutes. T：Now，I’ll check your work.One from each group will show your picture of the android you have designed and tell the class your design.And we’ll see which group has designed the best android.Who would like to try first? S3：Look here.This is the picture of the robot we’ve designed.What does it look like?Yes，it looks like a dog.We all like dogs very much.Every morning it will wake us up so that we will not be late for school.Then it will company us to school and carry our heavy bags.You know how heavy our bags are!In the evening，after a whole day’s hard work，it will play beautiful music to help us relax.Maybe it will cost at least 2000 yuan，but we don’t think it is too expensive to have such a good friend. S4：Well，we’d like to design our robot in this way.We would like it to look like the famous footballer Beckham who serves as a striker on the football team.It has the most advanced program， so it can move and think like Beckham，and of course can shoot good goals like him.We would like it to enter the next Electronic World Cup，and we are sure that it will win the cup! T：Your designs are very unusual and smart.I really want to go on appreciating your designs， but time is limited.Will you put up your pic tures of the robots you have designed with instructions on the back wall，and then decide which group has designed the best androids after comparison?8 / 17高一人教课标必修 2unit3-computers 全单元的教案Step 3 Reading （2） Class，let’s come to the Reading Task on Page 58.First read the passage quickly and then fillin the chart of Exercise 1 and keep a record of his performances of the sporting robot of the 22nd century，Hua Fei in 78th Olympics and 79th Olympics.After doing it individual ly，please check your answers with your partners，and then we will check the answers in class.Suggested answersRECORD CARD AbilityPerformance in 78th OlympicsHUA FEI High flying exercises Wonderful turns，dives，circles and dancesPrize wonSilver medalPerformance in 79th OlympicsReason for failure TreatmentBegan very well but failed through on fault of his ownParachute failed to open Two new legs and a new headStep 4 HomeworkT：It’s almost time for a break.Now homework for you today.pare the designs of the androids of each group and try to decide which one is the best.2.Suppose you have been lucky enough to be allowed to interview Hua Fei in hospital for your school paper.Work out some questions together with your partner，and then interview each other.Step 5 The Design of the Writing on the BlackboardUnit 3 Computers Period 3TimeEvents1642182219361960s1960s1970sNow9 / 17高一人教课标必修 2unit3-computers 全单元的教案Reference for your design of the androids： 1.What would you like it to look like? 2.What are some of the things you would like it to do? 3.Do you want it to be like a man or a woman or neither? 4.How much would it cost?RECORD CARD AbilityPerformance in 78th Olympics Prize wonPerformance in 79th OlympicsReason for failure TreatmentHUA FEI High flying exercises Wonderful turns，dives，circles anddances Silve r medalBegan very well but failed through on fault of his ownParachute failed to open Two new legs and a new headStep 6 Record after TeachingPeriod 4 ListeningThe General Idea of This Period： This period includes listening and writing on Page 21；listening on Page 55 and listening task on Page 58.Apparently，the purpose of this period is to train the students’ listening—for information；for comprehension and for language.Meanwhile，the students will be trained to express their own opinions after listening. Teaching Aims： 1.Help the students to learn about the knowledge of information technology. 2.Enable the students to get the main ideas of the listening materials. Teaching Important and Difficult Points： 1.How to get the main idea and information in details. 2.Express their own opinions after listening. Teaching Methods： 1.Task-based learning. 2.Cooperative learning. Teaching Aids： 1.A tape recorder. 2.A multimedia. Teaching Procedures： Step 1 Revision Check the students’ interviews. Get the students to work together with their partners to interview each other. Step 2 Listening and writing （Page 21） Task 1 Listen to a conversation T ： Class ， as we all know ， the 21st century is the century of information and technology.Next we will listen to a conversation about differe nt kinds of information technology10 / 17高一人教课标必修 2unit3-computers 全单元的教案or IT.And as we know ， each kind of information technology has its own advantages anddisadvantages.So from this conversation we will listen for the advantages and disadvantages ofeach one.But before listening let’s first look at the pictures on Page 21 and the form on Page 22 tomake sure what you are going to do while listening.OK，let’s begin.The students listen to the conversation for the first time.Task 2 Discussion and fillingT：You can see there are a TV，a CD-ROM，a computer，a radio，a DVD and newspaperhere.Now try to finish filling in the form with the information you have just got from theconversation.Suggested answers：Type of ITAdvantagesDisadvantagesTVYou can both listen and watch You can’t write to friendsWebYou can find informationIt’s very expensiveRadioYou can listen to EnglishYou can not watchBookYou can get informationSometimes it is out-of-dateT：Now，let’s discuss the advantages and disadvantages of each type of IT in small groupsand then decide which type of IT is best for you to use，according to the form above and explainthe reasons.While discussing，remember to use the following expressions：I think that...In my opinio n...I believe that...I agree because...I disagree because...I’ve decided that...Step 3 Listening （Page 55）T：Now come to the listening on Page 55.Before you listening，please read the requirements ofEx.1.After that，you will find the three robots from the pictures above on Page 55 and num ber them.The possible number：Picture 1—No.3 Picture 3—No.2 Picture 4—No.1T：Now please look at these boxes on Page 55 before you listen to the tape again，and try tofind out the listening points.Pay more attention to the se points and you may make some noteswhile listening.Three minutes later.T：Now try to fill in the boxes with the information from the listening material，and thencheck your answers with your partners.Suggested answers：Personal robot SizeWhat it looks l ike What it can do PriceBird-like android SizeWhat it looks like What it can do Price Lonely androidInformation 35 cmRobot with five arms All homework 50 yuan a day Information 10 cmBird-like android Sings beautifully600 yuan Information11 / 17高一人教课标必修 2unit3-computers 全单元的教案Size What it looks like2m Large，energetic robotWhat it can doClimbs mountains；plays guitar；sings karaokeTelephone numberRoom-1234Step 4 Listening task （Page 58）T：Now please turn to Page 58，and finish the listening task.As we know，computers are used widely and put into androids.Please look at the picturesabove.There are two androids in it.One works as a maid.The other works in a car factory.They arefriends and they were made at the same ti me.Now they are talking about their lives and what it feels like to be android.OK，please listen carefully to their problems and fill in the form.I’ ll playthe tape twice. After listening. T：Try to fill in the forms as quickly as you can，and then we will check the answers inclass.Suggested answersSally and Brenda’s problemsAbout their jobsTheir programmer decided themAbout changing their jobsThey are not able to change jobsAbout who decides their future About how they are different from peopleTheir programmer does They can not smell，laugh，taste，or eat foodAbout how they are the same as peopleThey enjoy footballT：From what we have just listened，we know that Sally and Brenda have some troubles intheir lives.They are treated badly.Now you are going to make a list of the rights that androidsshould have so that they will be treated better.You can work with your partners and havediscussion. Suggested an swers：1.They should be able to choose the work they do.2.They should have their own time.3.They should be able to change their jobs.4.They should be able to decide their own future. 5.They should be able to taste，smell，feel，etc.Step 5 Assignment T：Class，I really appreciate your good performance in this listening class.I can see thatyour listening has greatly improved since you came to the senior school.Keep on your good work!OK，we have no time left.I’d like to assign you some homework to do.1.Go over the listening and writing on Page 21 and get ready for the writing.Step 6 The Design of the Writing on the BlackboardUnit 3 Computers Period 4Personal robot Type of ITAdvantagesInformation DisadvantagesTVYou can both listen and watch.You can’t write to friends.WebYou can find information.It’s very expensive.RadioYou can listen to English.You can not watch.BookYou can get information.Sometimes it is out-of-date.12 / 17高一人教课标必修 2unit3-computers 全单元的教案Size What it looks likeWhat it can do PriceBird-like android SizeWhat it looks like What it can do PriceLonely android SizeWhat it looks like What it can doTelephone number Step 7 Record after Teaching35 cm Robot with five armsAll homework 50 yuan a day Information10 cm Bird-like android Sings beautifully600 yuan Information2m Large， energetic robot Climbs mountains；plays guitar；sings karaokeRoom-1234Period 5 WritingThe General Idea of This Period：This period includes speaking and writing on Pag e 22 and writing on Page 23.The purpose isto encourage the Ss to think and talk creatively about computers and androids，express their ownopinions using words and expressions concerning computers and androids，and organize theirideas into a compositio n.Teaching Aims：1.Enable the students to learn how to write a report about their choice.2.Enable the students to learn the writing way of expressing ideas and giving reasons tosupport the ideas.Teaching Important and Difficult Point：How to make a decision about which kind of computer to buy and explain why.Teaching Methods：1.Task-based learning.2.Cooperative learning.Teaching Aids：A projector and multimedia.Teaching Procedures：Step 1 Speaking and writing （Page 22）T：Class，suppose you and your partner have been asked to help choose computers foryour school.You have looked at several computers.Talk about the special things each computerhas.Make a decision about which kind of computer to buy and explain why.And then you aregoing to write a report about your choice There is a list of things your computer could have.A fast PC the monitor is smallerImproved disc storage used recycled materialsInterneta flat screenStudents talk about the special things each computer can do.T：So much for the talking.And now you will be given five minutes to write a report about13 / 17。
人教版高中英语必修二Unit_3_computers_warming_up_and_reading
It is very small and transparent(透
明的). You can even put it into your
pocket.
(shape/color)
It has a free-internet in it. You
can…
(applications/functions)
It only costs you …… .
skimming
The topic sentence of each paragraph. Para 1 Over time I have been changed a lot. Para 2 Those changes only became possible as memory improved.
Further Understanding
3. In what ways have computer been changed?
size shape
small → large → smaller
speed
faster and faster
brainpower/memory more and more developed
1642 A calculating machine _S_im__p_li_fy_difficult sums
1822 A analytical machine
Think Biblioteka lo_g_i_ca_l_ly___
1936 A universal machine Solve any problem
R__e_a_li_ty_worries designers 1940s Large computers Tubes transistors chips
人教版高中英语必修二 unit 3 computers warming up(共21张PPT)
人教版高中英语必修二 unit 3 computers warming up(共21张PPT)
人教版高中英语必修二 unit 3 computers warming up(共21张PPT)
CPU (centrahl ard disc硬盘
processing Unit)中央处理器
chips 主板
ParWt2hHatisdtoortyhey have in common?共同点
abacus calculator Huge computer
What’s next?
Robot
PDA 人教版高中英语必修二 unit 3 computers warming up(共21张PPT)
laptop
desktop
人教版高中英语必修二 unit 3 computers warming up(共21张PPT)
1. Words about computers
2. History of development of computers
3. Comparison among abacus, calculator, PC and PDA
4. Speaking practice
5. Summary on the advantages and disadvantages of using a computer
人教版高中英语必修二 unit 3 computers warming up(共21张PPT)
人教版高中英语必修二 unit 3 computers warming up(共21张PPT)
人教版高中英语必修二 unit 3 computers warming up(共21张PPT)
display card 显卡
高一英语人教版必修2练习：unit3computersword版含答案
第一部分 听力 (共两节，满分 30 分 ) 第一节 (共 5 小题；每小题 1.5 分，满分 7.5 分 )
听下面 5 段对话。每段对话后有一个小题，从题中所给的 佳选项，并标在试卷的相应位置。听完每段对话后，你都有 和阅读下一小题。每段对话仅读一遍。
8． Why does the woman come to see the man? A. To learn English from him. B. To join a club. C. To ask for advice. 9． What does the man think of the woman's English? A. It is improving. B. It is just so－ so. C. It is good enough.
A、 B、C 三个选项中选出最 10 秒钟的时间来回答有关小题
1. How are the computers? A. They aren't working. B. Somebody has taken them away. C. They are working right now. 2． Why is the man's friend's English hard to understand? A. She doesn't receive much education. B. She comes from India. C. She hasn't learned English long enough. 3． What are the two speakers talking about? A. The differences between British English and American English. B. The differences between American and British spelling. C. The differences between American and British pronunciation. 4． Why can't the man follow the lady? A. Because the lady is running fast. B. Because the man isn't strong enough to catch up with her. C. Because the lady is speaking fast.
英语人教版必修2Unit3ComputersPartⅢ
Unit 3ComputersPart ⅢLearning about Language & Using Language文本感知阅读ANDY—THE ANDROID，完成下列小题1．Which statement is RIGHT according to the passage?A．Computer robots can't think like a human.B．Android football players can communicate with each other in a special language.C．Andy has ever played against a human team.D．In a way，the robot programmer is like a player.2．The most important reason why robot players were able to win is that ______.A．the striker would shout to teammates to give him the ballB．they not only looked like human, but were as tall as humanC．human provided them with advanced programs and chipsD．they were very strong3．What is the main difference between an android and a man?A．An android is not the same as a man in size and appearance.B．It can't talk like a man.C．It is cleverer than a man.D．It can't think for itself just as a man does.答案：1．B 2.C 3.D导学互动1．For example，I have learned to signal to my teammates in computer language to give me the ball when I am open and have a good shot for a goal.(Reading，speaking and writing，P23)例如，当我前面没有人防守有机会射一个好球的时候，我已经学会了用计算机语言向队友们示意把球传过来。
人教版高中英语必修二 unit 3 computers Reading课件3
6A.. robot 5B.. laptop
机器人
time order
手提电脑
3C.. universal machine 通用机
1D.. calculating machine 计算机器
2E.. analytical machine 分析机
4F.. PC
个人电脑
Discussion
• Do you want to have a computer or a robot? If you can just choose one of them, which do you prefer? List your reasons.
ቤተ መጻሕፍቲ ባይዱ
keyboard 键盘 mouse 鼠标 host 主机
the most important tphaertpoafrt of a computer which
a computer
looks like a television
monitor 显示器 printer 打印机 speaker 音响
components of a computer
Do you know who I am?
abacus
[`æ bəkəs] n. 算盘
Riddle B (谜语):
I am very small. I can be used for calculating. In our class, a lot of students use me to solve maths problems. Do you know who I am?
Tips: 1. We can use a computer to … 2. It is made up of some parts, such as…
高中英语人教版必修二：Unit+3+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精美句子1、善思则能“从无字句处读书”。
人教版高中英语 必修二 Unit3 《Computers ---Reading》 课件 (共32张PPT)
1936
The computer grew rapidly both in size and in brainpower.
The computer had grown as large as a room.
1960s
computer.
c. The computer has been sent to explore
the Moon and Mars.
d. The computer began to simplify
difficult sums.
A. a. b. c. d.
B. b. c. a. d.
C. d. a. c. b.
C. Charles Turing. D. Alan Babbage.
2. When was the “universal machine” built?
A. In 1822.
B. In 1642.
C. In 1936.
D. In 1970.
Scanning
3. When was the computer the biggest?
Computers were used in offices and homes. Computers connect people all over the world together.
Scanning to get
detail information
Scanning
Reading Comprehension III
True or False 1. My real father was Charles Babbage,
高中英语人教版必修2+Unit+3+Computers+period+1+课件2+(共32张PPT)
Step 1. Warming up
1. Let’s enjoy a short video clip. Q1. What impresses you most? Q2. What do you think of such a great
abacus ['æbəkəs]
calculate ['kælkjulet]
The abacus played a very important part in calculating in ancient China.
abacus
calculator
['kælkjʊleɪtə] finance['faɪnæns]
used in offices and homes.
Now Computers connect people all over the world
together.
2) From the form above, we can know that the text is developed in an order of _t_im__e__.
A. About 370 years old. B. About 270 years old.
C. About 170 years old. D. About 470 years old.
(3) According to the passage, the computers in the
future will ______.
Step 6. Homework
Like a “handbag”
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Unit 3 Computers
Period 3 Grammar
The Present Perfect Passive Voice
Lead-in Are you familiar熟悉 with these computers? Can you call them? PDA
Desktop PC laptop/ notebook computer
Many problems have been found with our new computer.
3. A PC has been builded the way we wanted. A PC has been built the way we wanted. 4. Our computer just has been joined to the internet. Our computer has just been joined to the internet.
Grandma Wang all these years.
A notice has been put up on the wall.
改错
1. A personal computer has bought by us.
A personal computer has been bought by us. 2. Many problems has been found with our new computer.
WW PC wrist-worn/wearable PC
A wrist-worn PC has been invented recently.
A pen-like computer has already been
developed.
Learning the structure:
The Present Perfect Passive Voice （现在完成时的被动语态） 现在完成时的被动语态表示动作发生在过去, 到现在已经完成或对 现在仍有影响 1构成： 主动语态 现在完成时 have/has done 被动语态 have/has been done
例如：
1. The dirty clothes have been washed.
脏衣服都已经洗了。 2. The plan has been studied by the experts for three times. 这项计划已经由专家研究过三次了。
3. he child has been taken care of by Grandma Wang all these years.
China since 1978.
3．但许多不及物动词加介词或副词构成的短语
动词，相当于及物 动词，也可以有被动语态。 但短语动词是一个不可分割的整体，变为被动 语态时，不可丢掉构成短语的介词或副词。如： eg 1) The child has been taken good care of by
4. 用在时间和条件状语从句中, 表示将来
来某时已完成的动作。如： We’ll start as soon as the work has been finished. 工作一完成我们就立即动身。
注意:
1. 副词的位置 often, usually, always, never, hardly, seldom等副词置于have/has和 been中间。如: [误] Such a man has been hardly believed.
[正] Such a man has hardly been
believed.
2. 并不是所有动词都有被动语态
happen, take place, break out,
belong to, cost, last等不及物动词或词组无被动语态。如： [误] Great changes have been taken place in China since 1978. [正] Great changes have taken place in
The Temple of Zhang Fei has been rebuilt. 张飞庙已经过重建。
2. 说话时已经完成的动作或出现的结果。
如: The door has been locked.
门已经被锁上了。 （我或别人现在进不去） 3. 动作或状态始于过去, 持续到现在, 并可能持续下去。如： He has been told about it for many times. 有人告诉他这事很多次了。 （可能还会有人告诉他）
2 . Change the following sentences into the Present Perfect Passive Voice.
Put the verbs into correct form. Recently we have bought a new personal computer. We have used the computer every day since we bought it. We have just joined our computer to the Internet. However, we have found many problems with
这些年来, 这个小孩一直由王奶奶照料。
现在完成时被动态： have / has + been + 动词过去分词 现在完成进行时： have / has + been + 动词现在分词
它们的构成的区别在最后的动词上, 被动态接的是过去分词形
式, 现在完成进行时接的是现在分词形式。
1. 主语是行为动作的承受者。如：
5. The computer was used every day since we bought it.
The computer has been used every day since we bought it. 6. A lot of e-mails had written on the computer in the past 5 years. A lot of e-mails have been written on the computer in the past 5 years.