沪教版(初中二年级)八年级英语上册：Unit-3-Computers(Period课件.ppt（纯ppt,不包含音视频素材）

1、Period 1&2Unit 3 Computers1.Getting ready Look at the cartoon and answer the questions.A computer makes an ATM work.It controls the ATM.We can get money from it or put money into it.software hardware virus multimedia file PC network Match the words in column A with the definitions in column B.ATM2.M

2、ore about computersAsomething that gets into a program and harms ita collection of information on a computer that is stored under a particular nameautomated teller machinethe sets of programs that you put into a computer when you want it to do particular jobsa computers monitor,keyboard,drives,etc.p

3、ersonal computertwo or more computers linked togethera mixture of sound,pictures,film,and writing to give information,especially with computersBDo you have a computer at home?Computers are less expensive now.￥12,000￥3,600BrainstormComputerWhat do you usually do with computers?typecalculateWhat do yo

4、u usually do with computers?1.The _shows words and pictures.2.We use the _ for typing.3.The brain of a computer is in the _.4.We move the_ to control the computer.5.We hear sound from the _.How much do you know about computers?Look at the photo below and complete the sentences with the correct names

5、.Look at the pictures,the title and the sub-headings of the article.Then tick()the facts that the article probably talks about.1.Computers are getting smaller and better.2.Computers can do important jobs like flying planes.3.Computers may work as doctors.4.Computers are expensive.3.Before you readSm

6、aller and betterIn the 1940s,the first computers were bigger than cars.Now computers are becoming smaller and better.Some computers are tiny.You may be unaware of them.There is probably one inside your TV or washing machine.You depend on computers more than you realize.Computer facts4.VocabularyA su

7、b-heading usually tells us the topic of the paragraph(s)below it.sub-headingsWhat can we do with computers?We can use computers to calculate.They can calculate at a faster speedthan we can and almost never givewrong answers.We can also type anddraw things with them.In addition,computers can do impor

8、tant jobs likeoperating railways and flying planesand spaceships.Is a computer cleverer than me?The answer is“No”.Your brain can produce newideas but computers cannot.However,one daycomputers may be able to do a better job thanhuman beings.For example,they may be betterthan doctors at doing their jo

9、b.What will happen to us if computers can do all ourjobs?Will we have nothing to do?Computers may change our lives,but will they make them better?1.If something is very small,it is _.(line 5)2.Some young people always need help from their parents.They should learn to _ themselves.(line 8)3.We had fu

10、n and learnt something new as well.We had a good time._,we learnt a lot.(line 14)4.When we make a machine work,we _ it.(line 16)C1 The words in italics explain the meanings of some words.Find these words to complete the sentences.Change their forms if necessary.C2 Complete the conversation below wit

11、h the words from the box.Complete the sentences with the words you have just learnt.Change their forms if necessary.1.I cant type because the _ doesnt work.2.You _ on your parents too much.You should learn how to look after yourself.3.My father _ as an engineer.His job is to _ some big machines and

12、repair them.4.CPU is the“_”of a computer.Its a _ part in the main unit.5.Getting angry may make you lose friends,so it is important to _ your feelings.6.He is driving at a speed of 150 km per hour.Its very dangerous,but he is _ of the danger.Reading(II)Computers1.RevisionRead the sentences and pay a

13、ttention to the words in italics.Write one word or phrase that is related to or similar in meaning to the words in italics.1.The racing car runs at 230 km an hour.Its really fast!2.Where is the ant?I cant see it.Its so small.3.He just stood in the road.He didnt see the car coming.4.I decide to go to

14、 Wuhan by train.6.The young man made his robot move with a remote control.5.We cannot always ask our parents for help.speedbe unaware ofrailwaydepend onoperatetinyComputer Where do we use computers in our daily life?Share your ideas.ATMbank2.While you read Read the first part of the article and comp

15、lete the table below.Smaller and betterThe first computers in the 1940sComputers nowadays becomingExample Conclusionbigger than carssmaller and betterThere is probably a tiny computer inside your TV or washing machine.You depend on computers more than you realize.We can use computers to calculateAdv

16、antages Examplescalculate at a faster speed than we canalmost never give wrong answerstype and draw thingsdo important jobsfly planesoperate railways Read the second part of the article and complete the table below.What can we do with computers?fly spaceships Read the third part of the article and a

17、nswer some questions.Is a computer cleverer than me?No,it isnt.Because the human brain can produce new ideas but computers cannot.What job may computers be able to do better one day?The job of a doctor.What problem will we probably face if computers can do all our jobs?We may have nothing to do.Is a

18、 computer cleverer than you?Why?S1:We can do many things with computers in our daily life.S2:For example?S1:We can _,_ and _ with them.S1:There may be tiny computers in your home.S2:Where,for example?S1:Inside your _ or _.2.1.3.After you read D1 Complete the answers with the examples from the articl

19、e.typedraw thingsTVwashing machinecalculateS1:Computers can do some important jobs.S2:For example?S1:They can_ and _.S1:One day,computers may be able to do a better job than human beings.S2:For example?S1:They_.4.3.operate railwaysfly planes and spaceshipsmay be better than doctors at doing their jo

20、b.D2 Answer the questions below in complete sentences.1.What were the first computers like?_ 2.Why are we unaware of some computers?_3.Are computers cleverer than you and me?Why or why not?_ _They were bigger than cars.Because they are tiny.No,they arent.Because our brains can produce new ideasbut c

21、omputers cannot.Computer factsPart 3Part 2Part 1The _ of computers in different timesThe _ of computers in daily lifeThe _ between human beings and computers in the futuresizesusesrelationship Complete the outline of the article.Find some examples in each part of the article.Put the following senten

22、ces in the right places of the article.1.They are super calculators.2.They may also be good teachers.3.You may also have one in your watch or MP3 player.4.Discussion D3 Discuss and answer the questions below with your classmates.1.Do you depend on computers a lot in your daily life?Give examples.2.D

23、o you agree that computers will be able to do all our jobs in the future?Give reasons.Homework 1.模仿录音的语音、语调，朗读课文。2.抄写短语：in the 1940s,calculate at a faster speed than we can,jobs like operating railways and flying planes,for example,be better at doing,happen to,have nothing to do等。3.思考课文中的最后一个问题Will computers make our lives better?给出观点和理由。4.完成练习。Thank You.