最新人教版必修二unit 3《computers》教案doc.docx

最新人教版必修二unit 3《computers》教案doc.docx

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最新人教版必修二unit3《computers》教案doc

河北省康保一中英语组高一年级集体备课教案

主备课人:

殷桂雁

参加人：

王培珍杨静慧安秀云马艳丽郝康李纬周燕娜

备课时间：

2010年11月17日

知识目标：

Topic：

Informationtechnology;historyandbasicknowledgeofcomputers;robots

Newwords:

calculateuniversal,simplify,sum,operator,logical,logically,technologyrevolutionartificialintelligenceintelligentsolverealitypersonalpersonallytubetotaltotallynetworkwebapplicationfinancemobilerocketexploreanyhowgoalhappinessdownloadvirussignaltypecoachariseelectronicappearancecharactermopnice

Phrases;from…onasaresultso...thathumanraceinawaywiththehelpofdealwithwatchover

Sentencepatterns;

1makingdecisions

Ithink/Idon’tthinkthat…

Ibelievethat…

I’vedecidedthat…

Let’sdecide…

let’smakeadecision

2Reasoning

Theadvantage/disadvantageis…

Iagree/don’tagree…because…

Givemeyourreasons:

First……second.

Whatmakesyouthinkso?

As/since……,Ithink……

Grammar:

现在完成时态被动语态的建构和用法

OvertimeIhavebeenchangedquitealot.

FirstasaPCandthenasalaptop,Ihavebeenusedinofficesandhonessincethe1970s

Sincethe1970smanynewapplicationshavebeenfoundforme

Ihavealsobeenputintorobotsandusedtomakemobilephonesaswellashelpwithmedicaloperations

能力目标：

让学生学习用英语表达自己的观点并进行简单的理由阐述及做出决定，并能按时间先后顺序来描述某事。

情感目标：

通过本单元的学习，使学生了解计算机的发展历程及其在当今社会的广泛应用；明确高科技在当今社会发展和国际竞争的重要地位，从而激发其热爱科技，奋发进取的决心，时刻准备用自己的知识为祖国服务。

课时安排：

本单元教学可分为10课时

第一课时：

Newwordslearning;Warmingup

第二课时：

Pre-reading;reading;comprehending;

第三课及第四课时：

Importantlanguagepoints

第五课时：

LearningaboutLanguage（discoveringusefulwordsandexpressions）

第六课及第七课时：

Learningaboutlanguage（discoveringusefulstructures）;Grammar

第八课时：

SpeakingandReading

第九课时：

Writing,SummingupandLearningtip

第十课时RevisionandExercises

人教版新课标必修二unit3Computers

ThefirstperiodNewwordslearningandwarmingup

学习目标：

1语言目标：

Readallthenewwordsandphrases,payingattentiontothepronunciationandstress

2能力目标1）Mastertheusageoftheword“common”

2）talkaboutthedevelopmentofcomputers

3课前自主学习：

I英汉互译：

1____________adj.共同的2_______________n.发展3_________________n.　计算机

4_____________n.机器人5calculatorn.___________6.laptopn._

7abacusn.___________8thedevelopmentofcomputers___________

9和……有共同之处______________________________________

Suggestedanswers:

mon2.development3.compuer4.robot5.计算机6.手提电脑7.算盘8.电脑的发展9.have…..incommon

IＩ　根据句意及首字母提示补全单词

10Thetwinshavealotinc____________

11Schoolsshouldpaymoreattentiontothehealthyd_______________

12Ourmathsteacheraskedallofustobuyc____________

Answers:

mon11development12computers

Teachingprocedures:

Stept1:

Learnthenewwordsandexpressions

识记下列单词的发音和同源词：

1.calculatev.计算---calculatorn..计算器2.universen.宇宙----universaladj.普遍的，通用的

3.simple.adj简单的，朴素的,simplyadv简单地，仅仅，简直，simplifyv.简化

4.operatev.操作，手术—operatorn.操作员，接线员，operationn.操作，手术

5.logicaladj.合乎逻辑的，---logicallyadv.合乎逻辑地，有条理地

6.technologyn.科技，技术，----technologicaladj.科技的7.revolution

8.artificial9.intelligentadj.智能的，聪明的——intelligencen.10.reality

11.person—personal—personally12.tube13.total–totally14.applyv.应用-，申请-,

applicationn.用途，申请15.mobile16.rocket17.explore–exploration

18.virus19.signal20.electricityn.电./electricaladj.关于电的/electric带电的，用电的，/electronic电子的21.appear–disappear,appearance22.character-characteristic23.niece

Step2.warmingup

1.lead–in

T:

Thisunitisconcernedwithalittlemoreofthehistoryanddevelopmentofcomputersandtheirapplications.Computersareveryimportantineverydaylifeandweneedtoknowaboutthem.understandingthehistoryofcomputerswillhelpustoseethattherewillbemanychangesahedinthedevelopmentofcomprters.Nowlookatthepicturesandlet’stalkaboutthedevelopmentofcomputers.

2.Freetalkofcomputers

Questions:

Haveevergonesurfing?

Doyouhaveacomputerofyourown?

Anddoyouoftengosurfing?

Whatdoyouusuallydoonline?

Whatdoyouthinkwillhappenifwedon’thaveacomputer?

3.languagepoints

1.Discusswhattheyhaveincommon.

havealot/much/little/something/nothingincommonwith

有许多/几乎没有/一些/没有/共同之处

Whatdothetwopictureshaveincommon?

这两个图片之间有什么共同之处?

他们彼此毫无共同之处.

Theyhavenothingincommomwithoneanother.

commonpeople老百姓，普通人

commonsense常识

commonknowledge总所周知的事

commoninterest共同的兴趣

近义词辨析：

common多表示”普通的;常见的;共有的”指符合或具有全体所共有的特征.

normal多表示”标准的;正常的”强调在正常范围内.

ordinary多表示”普通的;平淡无器奇的”,强调无特别之处.

usual多表示”习惯性的;遵守常规的”

general多表示”公众的;普遍的”

1.Ithasbecomea___________flower.Youcanfindithereandthere.（common）

2.Itis_______tostartaspeechbyintroducingoneself.（usual）

3.Althoughshewasrich,shewasalwaysin_________dress.（ordinary）

4.The__________temperatureofhumanbodyis37.（normal）

5.The____________publicbelievedthatitwasunfairtorefuseadisabledyoungmantodothejob.（general）

6.Ihaven’tathing____common____myfather.（B）

A.in,aboutB.in,withC.on,ofD.with,in

2.Whatdoyouthinkwillbethenextdevelopment?

本句中的doyouthink为插入语，插在特殊疑问句的中间，前后不必用逗号隔开，除think外，作插入语的动词有believe,imaginesupposesuggestconsidersaysuggest等。

注意：

1）疑问句在句中作主语时，将插入语放在疑问词后谓语动词前，其他不变，如将插入语撤走，原句式部变。

Eg.Whodoyouthinkatethecake?

2）疑问词在句中不作主语，将插入语放在疑问词后，think其他成分要成为的宾语从句，即要用陈述句语序。

Eg.Whydoyouthinkshewaslateagain?

拓展：

常见得插入语还有：

Ithink,Ihope,Iguess,I‘mafraid,Ibelieve,youknow,yousee等。

这些插入语常用逗号分开。

Eg.Thediet,Ithink,willdogoodtoyourhealth.

1._______besenttoworkthere?

（A）

A.Whodoyousuggest

B.Whoyousuggestthatshould

C.Doyousuggestwhoshould

D.Doyousuggestwhomshould

2.---Wehaven’theardfromJaneforalongtime.（C）

---Whatdoyousuppose_______toher?

A.washappeningB.tohappenC.hashappenedD.havinghappened

3._______isgoingtomarryLily?

（A）

A.whodoyouthinkB.DoyouthinksoC.whoyouthinkD.Doesyouthinkwho

Homework

1.Readthenewwordsandexpressions

2.Previewthereadingpart

Thesecondperiod:

Pre-reading;reading;comprehending;

Teachinggoals:

1.Tohaveabetterunderstandingofthemainideaofthepassage.

2’.Toenablethestudentstograsptheprogressofcomputers

Teachingprocedures:

Step1.Lead-in

Step2Pre-reading

1.Doyouknowinwhatwayscomputersareusedtoday?

Suggestedanswers:

1.）useacomputerforschoolwork

2.）playgamesonthecomputer

3.）sende-mailstofriends

4.）downloadmusicandfilms

5.）surfthewebforfun

6.）takepartinchatgroups

7.）usetheInternettosearchinformationforschooltasks

8.）buythingsonline

9.）lookatphotographsonthecomputer

10）readnewsbothathomeandabroad,readbooksandmagazines

2.trytoputtherightorderofpage17

Step3Skimming

.WhoamI?

（Acomputer）

Step4.Fastreading

1..checktheanswerofpre-reading（puttherightorder）

Suggestedanswer:

1.calculatingmachine2.analyticalmachine

3.universalmachine4.PC5.laptop6.robot

2.Whatisthemainideaofthepassage?

（thedevelopmentofthecomputer）

Step5Readingagain

Pleasefillinthetable

1642

Thecomputerbeganasacalculatingmachine．

1822

The“analyticalmachine”wasmadebyCharlesBabbage.

1936

Thecomputergrewrapidlybothinsizeandinbrainpower

1940S

 Thecomputerhadgrownaslargeasaroom.

1960s

Thefirstfamilyofcomputerswasconnectedtoeachother.

1970s

Manynewapplicationshavebeenfoundforthecomputer.

now

Computersconnectpeopleallovertheworldtogether.

Carefulreading:

readparagraphoneandcompletethechart

Paragraphone

Topicsentence

1. OvertimeIhavebeenchangedquitealot.

Supportingdetails

1._____________machine

2.analyticalmachine

3.universalmachine

4.pc

5.laptop

Readthesecondparagraph

Paragraphtwo

Topicsentence

1. Thesechangesonlybecomepossibleasmymemoryimproved.

Supportingdetails

 Tubesnetwork

transistors

worldWideWeb

smallchips

Readparagraphthreeandcompletethechart

Paragraphthree

Topicsentence

1. Sincethe1970smanynewapplicationshavebeenfoundforme.

Supportingdetails

 1.cmmunications2.finance3.trade4.robots

5.mobilephones6.medicaloperations7.spacerockets

Trueorfalse

1.Step8HThecomputerbeganasacalculatingmachinein1742.（F）

2.TheAnalyticalMachinewasmadebyCharlesBabbagein1822.（T）

3.Computershadnewtransistorsandbecamesmallerinthe1960s.（T）

4.AlanTuringwroteabooktodescribehowcomputerscouldbemadesmaller.（F）

5.Inthepastpeoplethoughtthecomputerwassimple-minded.（T）

6.Inthe1960sthefirstfamilyofcomputerswasconnectedtoeachother.（T）

7.Computerscouldshareinformationandexpresstheirfeelings.（F）

8.Computersconnectpeopleallovertheworldtogether.（T）

Step6.SummaryIwasbornasa_calculating

machinein1642.WhenIwasyoung,Iwasgoodat____________difficultsums.About2hundredyearshadpassedbeforeIcouldthink_________andproduce_______answers.Atthattime,Iwascalledan___________machine.In1936,Iwasbuiltasa___________machine.Ihadtheabilityto_______anymathematicalproblem.Fromthenon,Igrewrapidlybothin_______andmemory.AfterIstoredmymemoryon__________insteadofin_____.Ibecame_______insizebut_________inintelligence.Astimewentby,Ibecameevensmaller,forIputmymemoryonaverysmall______,whichmademebecomePCandlaptop.

Inthe1960s,Icouldbeconnectedwithothercomputersbya___________.Fromthenon,Iwasabletosharemyknowledgewithothersthroughthe________________.Afterthat,Ihadmanynew______________.Now,Iamgl