必修2unit3学案.docx
- 文档编号:4240328
- 上传时间:2022-11-28
- 格式:DOCX
- 页数:13
- 大小:31.90KB
必修2unit3学案.docx
《必修2unit3学案.docx》由会员分享,可在线阅读,更多相关《必修2unit3学案.docx(13页珍藏版)》请在冰豆网上搜索。
必修2unit3学案
Unit3Computers学案
period1Newwordslearningandwarmingup
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
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.intelligentadj.智能的,聪明的——intelligencen.9.person—personal—personally10.total–totally11.applyv.应用-,申请-,
applicationn.用途,申请12.explore–exploration13electricityn.电./electricaladj.关于电的/electric带电的,用电的,/electronic电子的
14appear–disappear,appearance15.character-characteristic
Step2.warmingup
Thisunitisconcernedwithalittlemoreofthehistoryanddevelopmentofcomputersandtheirapplications.Computersareveryimportantineverydaylifeandweneedtoknowaboutthem.understandingthehistoryofcomputerswillhelpustoseethattherewillbemanychangesahedinthedevelopmentofcomprters.Nowlookatthepicturesandlet’stalkaboutthedevelopmentofcomputers.
2.FreetalkofcomputersQuestions:
Doyouhaveacomputerofyourown?
Anddoyouoftengosurfing?
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)
1.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.Readthenewwordsandexpressions2.Previewthereadingpart
period2:
Pre-reading;reading;comprehending;
Reading:
WHOAMI?
Pre-reading
1.Whatdotheystandfor?
PC
IT
www.
2.Doyouknowthefollowingwordsrelatedtocomputers?
harddiscsearch
softwaredownload
memoryupdate
chipsclick
artificialintelligencestore
program
While-reading
1.Skimthepassageandfindout:
1)Whatdoes“I”referto?
“I”refersto_________________.
2.)Whatisthepassagemainlyabout?
About_________________________.
2.Scanthetextandfinishthetimeline.
1642
1822
1936
1940s
1960s
Thefirstfamilyofcomputerswasconnectedtoeachother.
1970s
now
Computersconnectthepeopleallovertheworldtogether.
3.Scanthetextandfindsomesupportingdetails.
Postreading
1.Readthesummaryandfillintheblanks.
paragraph1
OvertimeIhavebeenchangedalot.Ibeganasa__________________andtwoyearslaterIwasbuiltasan________________.In1936,Iwasmadetoworkasa______________Astimewentby,Iwasmadefromhugetosmall,firstasa______andthenasa_______.
Paragraph2
Thechangesonlybecamepossibleasmymemoryimprove.Firstmymemorywasstoredin_______,thenon____________andlateronverysmall______.Intheearly1960s,Iwasgivenafamilyconnectedbya_________.Iwasabletosharewithothersthroughthe________________
Paragraph3:
Sincethe1970smanynewapplicationshavebeenfoundforme.
I’vebecomeveryimportantin________________,______and________.I’vealsobeenputinto______andusedtomake______________aswellashelpwith______________.Ihaveevenbeenputinto___________andsenttoexploretheMoonandMars.Mygoalistoprovidehumanswithalifeofhigh___________.
3Writeashortpassagebasedonyouroralpresentation.
Overtime,Ihavebeenchangedalot.
__________________________________________________________________________________________________________________________________________________________________________________________________
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,Iamgladtoservehumanbeingsasa_________________andapleasant___________.
Answers:
Calculatingsimplifyinglogicallyquickeranalyticaluniversal
Solvesizetransistorstubessmallerclevererchipnetwork
WorldWideWebapplicationsdevotedfriendhelper
Homework
1.GetreadyforthediscussiononP.19Comprehending3
2.FinishExercise1inLearningaboutLanguageonpage20
period3and4:
Importantlanguagepoints
Languagepoints:
1.Ittooknearly200yearsbeforeIwasbuiltasananalyticalmachinebyCharlesBabbage.
Itdidn’ttake/waslongbefore…
Itwilltake/belongbefore…
Itwon’ttake/belongbefore…..
1)要过5年我们才会见面.
Itwillbefiveyearsbeforewemeetagain
2.)过了很久我们才到达村庄.
Ittooklongbeforewearrivedatthevillage.
2.MyrealfatherAlanTuring,wroteabookabouthowIcouldbemadetoworkas…
感官动词(see/watch/hear等)与使役动词(make/let/have)后接do,而在被动语态中必须有to.
Theyheardthemansingasong.
3.Fromthenon,Igrewrapidlybothinsizeandinbrainpower.
from….on:
从….时起fromthenon:
从那时起
fromnowonfromnowon从现在起
辨析:
fromthenon多用于一般过去时
Sincethen多用于完成时态
Fromthenon,theydidn’tseeeachother.
Sincethen,theyhaven’tseeneachother.
4.Astimewentby,Iwasmadesmaller.
=Withtimegoingby随着时间的流逝,…..
goby①(时间)过去,逝去②从……经过③遵循,以……来判断
Astimegoesby,mymemoryseemstogetworse.
Didyouseeaboygobyonabicycle?
That’sagoodruletogoby.
(1)Astime________,shebecamemoreandmoreanxiousaboutherson'ssafety.(D)
A.passingB.goingbyC.passedD.goesby
(2)Withthetime________,ouranxietygrew.(B)
A.goesbyB.goingbyC.hasgonebyD.hadgoneby
(3)Threemonths__________beforeweknewit(.C))
A.passedbyB.wentC.wentbyD.past
5.Asaresult,Itotallychangedmyshape
Hegotuplate.Asaresult,hewaslatefortheclass
asaresult(=therefore)结果,因此
Asaresultof(=becauseof)因为…resultin导致,结果为
resultfrom因为,源自withoutresult毫无结果
1._________________hishardwork,hegotapayrise.(asaresultof)
2.)Heworkedhard,______hegotapayrise.(asaresult)
3.)MyfriendMartinwasverysickwithastrangefever;_____,hecouldneithereatnorsleep.(A)
A.asaresultB.afterallC.anywayD.otherwise
4).Shewasuna
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 必修 unit3