八年级英语Modern machines Reading课件1.ppt

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1、 Unit 3 Modern machinesA guessing gameBrainstorming Can you name some electric machinesradioironelectric fanrice cookerTV setvacuum cleanerwashing machine ice box/refrigerator/fridge air conditioner camera computer telephoneBefore you read about computers,look at the pictures below and tryto write t

2、he names to complete thesentences.A What do you know about?monitormain unit speaker mouse keyboard micro-phone floppy diskCD-ROM drive/DVD-ROM drive drive1.The _ shows words and pictures.2.You use the _ for typing in information.3.The _ _ records information.4.The _ helps you control the computer.5.

3、The _ _ contains all the computers electronics.6.We can hear the sound from the _.7.We put _ into the _ in the main unit.monitorkeyboard floppy diskmouse main unitspeakersCDsCD-ROMLets learn some technical words associated with computers:l PCl laptop l virus personal computer small,portable personal

4、 computersomething which gets into a program and damages itl data l filel network information a collection of data stored together a system that links two or more computers togetherl software l hardware lcommand programs the monitor,keyboard,drives,etc.an order to the computerl e-mail l modem lmulti

5、media electronic maila device which links the computer to the telephone systema combination of sound,moving pictures and text2.unaware of(adj.)P2l not knowing about e.g.The student was unaware of his mistake.1.hardly ever(adv.)P1l almost never e.g.We hardly ever get frost in Shenzhen.3.dependent(adj

6、.)P2l needing someone or something e.g.You should not be dependent on your parents all the time.4.realize(v.)P2l notice;know about e.g.I didnt realize you were going to leave.5.rarely(adv.)P3l not often;seldom e.g.People rarely eat snakes in the UK.6.diagram(n.)P3l a line drawing that shows how some

7、thing works e.g.Science books contain a lot of diagrams.7.operate(v.)P3l control;keep running e.g.How do you operate this new recorder?8.essential(adj.)P4l very important;necessary e.g.Water is essential for life.9.for the time being P5l for now and some time into the future;temporarily e.g.Your sal

8、ary will be 5,000 yuan a month for the time being.10.judge(n.)P5l a senior law officer e.g.The judges put the criminals in jail.11.raise(v.)P6l mention something for people to discuss or to deal with e.g.The report raises questions about law and order in our city.B Find the factsRead Tonys informati

9、on about computers and correct the wrong statements.Computers 1.may be inside some machines in our homes.2.can do unimportant jobs like flying spaceships.3.can do tasks according to the programs.4.at present are cleverer than people.important not clevererHidden helpersThe use of computers has spread

10、 very quickly.There are small computers inside everyday appliances in your home.What kind of jobs can a computer do?Computers are electronic brains.They can perform many functions,calculate and even control railway systems.How do we give a computer instructions?Computers are given instructions by me

11、ans of programs.Is a computer cleverer than I am?At present,the human brain is superior to the computer,as it has greater understanding,butthis may change.If computers can do some of our jobs better than we can,how will our liveschange?CDsMany of todays computers use CDs,which can hold huge amounts

12、of information and also pictures and sound.1.plan to do sth.2.write an article about 3.hardly ever4.be unaware of 5.be dependent on 6.play games with sb.计划做某事计划做某事写一篇关于写一篇关于的文章的文章几乎没有几乎没有没有意识到没有意识到依赖依赖和某人一起玩游戏和某人一起玩游戏7.fly aeroplanes and spaceships8.electronic brains9.put into 10.write computer prog

13、rams11.make mistakes12.the answer to this question驾驶飞机和宇宙飞船驾驶飞机和宇宙飞船电子脑电子脑将将放进放进编电脑程序编电脑程序犯错误犯错误这个问题的答案这个问题的答案13.for the time being14.be able to do sth.15.human brain16.happen to 17.make lives better18.floppy disk19.for example20.a famous person in history暂时暂时能够做某事能够做某事人脑人脑发生在发生在使生活更加美好使生活更加美好软盘软盘例如

14、例如一位历史名人一位历史名人C Find the meaningsC1 Find these words and expressions in the passage.Then read the words round them and choose the best meanings.1.hardly ever a.sometimes b.seldom c.often2.depend on a.need b.trust c.play with3.realize a.allow b.understand c.decide4.rarely a.often b.sometimes c.seldom

15、5.essential a.very dangerous b.very safe c.very necessary6.contain a.prevent b.remove c.includebabcccC2Find the words in Column A in the passage and then read the wordsround them.Match them with themeanings in Column B.AB1.be unaware of 2.tiny 3.diagrams4.operate5.for the time being6.judges7.raisesa

16、.make(it)workb.people who make legal decisionsc.very smalld.at presente.brings to our attentionf.do not know aboutg.simple drawingsfcgadbeD Read and thinkPeople often expect you to giveexamples to explain something.Read the statements below andon page 47 and give examples.Put one word in each blank.

17、1.S1:Computers can draw things.S2:For example?S1:_ and _.2.S1:Computers can do some important jobs.S2:For example?S1:_ _,_ _ and _ _.3.S1:There may be tiny computers in your home.S2:Where,for example?S1:Inside your _ _,_ or _ _.DiagramsgraphsOperating railways flying aeroplanes flying spaceshipsTV s

18、et telephone washing machine 4.S1:A human brain can do some things better than a computer.S2:For example?S1:_ _ _.5.S1:In future,computers may do some jobs better than people.S2:What job,for example?S1:A _ job.Creating new ideasdoctors/judges/teachers6.S1:In future,computers may change our lives a lot.S2:For example?S1:We may have _ _ _.7.S1:CDs can hold more things than books.S2:What,for example?S1:_ and _,as well as writing.nothing to doPictures sound