Unit3 Computers.docx
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Unit3 Computers.docx
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Unit3Computers
Unit3Computers
一、拓展性教学活动
Step1DrawontheblackboardadiagramtoillustratetheinfluenceofthecomputerandtheInternetovertheschooleducation.Belowisadiagramyoumayliketouse.
Step2Askstudentstolookatthediagramandconsider,”WhatchangeshavecomputersandtheInternetbroughttoschools?
Whatchangeswilltheybringtoschoolsinthefuture?
”
Step3Askthemtoworkingroupsandtomakealistofthepossiblechangestheycanthinkof.
Step4Whenmostofthegroupshavetheirlistsready,theteachercanholdaclassdiscussion.Writedownthemajorchangesthestudentsthinkofunder/besidethediagram.Theteachercanaddoneortwochangesthatmayaffecttheirownteaching.Forexample,“ComputersandtheInternetcanhelpbusyparentscontactteachersbyemail.”
Step5Theteachercanendthetaskwithabriefsummary,orholdafurtherdiscussiontofindoutstudents'personalopinionsaboutthechanges.Forexample,askthem,“Doyoulikeallthesechanges?
Whyandwhynot?
Whatchangesdoyoulike/dislike?
”
二、自我评价建议
(一)非测试性评价
1.TowhatextentarethecomputerandInternetbecomingpartofyourlife?
Iusethecomputerand/orInternetto:
□typemyhomework.□drawpictures.□playgames.□communicatewithmyfriends.
□gatherrelatedinformationformylessons.□buythethingsIlike,e.g.booksandclothes.□listentomusic.□watchmovies.
2.WhatelsedoyouthinkthecomputerandInternetwillhelpyoutodo?
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________________________________________________________________
3.Whichpart(s)ofthecomputerdoyouthinkneed(s)moreimprovement?
Why?
YoucanuseExercise1intheWorkbook(p56)asreferenceforthepartsofthecomputer.
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(二)测试性评价
Explainhowthecomputertechnologyhasbeendevelopingandcompletetheflowchartbelow.Thengiveabrieforalpresentationonthedevelopmentofcomputertechnologywiththehelpofthechart.Whenyou'repreparingit,youcanrefertothereadingpassageonPage18oftheStudent'sBook.Youroralpresentationwillbelessthanthreeminutes.Thenwriteashortpassagebasedonyouroralpresentation.
三、补充注释
1.incommon:
fororbyallofagroup共同的;共有的;共用的。
thelandownedincommonbytheresidents居民共有的土地。
incommon常常同have连用,如:
havenothingincommon无共同之处
havelittleincommon几乎无共同之处
havesomethingincommon有一些共同之处
havealotincommon有许多共同之处
以下是从英国国家语料库中精选出来的几个例句:
(1)Youknow,Dorothy,youandIhaveonethingincommon.
(2)WejusthadnothingincommonandIcouldn'tcommunicatewithhisdullbusinessfriends.
(3)Isuddenlyfeltwehadalotincommon.
2.simple-minded:
showingverylittleintelligence头脑简单的;笨的。
Richardissmartbuthehasalotofsimple-mindedfriends.理查德很聪明,可是他有许多头脑简单的朋友。
simple-minded是一个复合形容词,与它结构相同的复合形容词还有:
absent-minded心不在焉的
open-minded虚心的,没有偏见的
narrow-minded心胸狭窄的
single-minded一心一意的
strong-minded意志坚强的
weak-minded低能的,愚蠢的
3.makeadecision:
makeupone'smind作出决定。
与makeadecision意思相近的词组有:
arriveat/cometo/reachadecision。
与make连用的常用词组有:
makeanattempt,makeaneffort,makeanoffer,makeasuggestion,makeaphonecall,makeamistake,makeprogress等。
4.inaway:
toacertainextent在某种程度上。
与inaway同义的词组有inoneway和insomeways。
容易与之混淆的词组是intheway意为“造成阻碍”,请比较:
Inaway,Ilikethisnewtextbookverymuch.从某种程度上说,我很喜欢这本新教材。
I'mafraidyourbikeisintheway.看来你的自行车挡着道了。
5.afterall
1)inspiteofwhathasbeensaid,doneorexpected毕竟;终究;归根结底。
Soyou'vecomeafterall!
你终究还是来了!
Afterall,whatdoesitmatter?
归根结底,那又有什么关系呢?
2)itshouldberemembered别忘了。
Sheshouldhaveofferedtopay—she'samillionaire,afterall.她应该主动提出付款──别忘了,她是个百万富翁。
6.watchover:
takecareof照料;照管。
CouldyouwatchovermydogwhileIamonholiday?
我度假的时候,你能帮我照料我的狗吗?
Yougoswimming,please.I'llwatchovertheclotheshere.请你去游泳吧,我来照管这些衣服。
7.wander(v.):
tomovearoundinanareaorgofromplacetoplacewithoutanyspecialpurpose;roam游荡;闲逛。
Hewaswanderingaimlesslyupanddowntheroad.他在路上无目的地来回溜达。
由于拼写相近,wander容易与wonder混淆。
教师可以提醒学生注意区分,并同学生一起归纳整理wander和wonder各自的用法。
四、TeachingguidefortheSB
WARMINGUP
Thissectionisanintroductiontothetopic.Itistogetthestudentsthinkingaboutthedifferentwayscomputerscanbemade.Dothispartofthelessoninpairsandasaspeakingactivity.
PRE-READING
ThiscanbeacontinuationoftheWarmingUp.LetthestudentsdiscussthequestionssetoutintheStudent'sBook.
READING
Thisisashorthistoryofthedevelopmentofcomputersoverthelast100years.Itintroducesalotofnewandtechnicalwords,whichareonlyusedforcomputers(suchas“artificialintelligence”or “network”).
1 Teachingnewwordsandstructures
2 Understandingideas
Thisisthepurposeofthereadingandsoitisimportantthatthestudentslearntouseallthecluesinthetexttohelpthemunderstandthegistofwhattheyarereading.Soencouragethemtolookatthepicturesandtheheadingandguesswhatthetextmightbeabout.Thenasktheclasstoreadthepassagesilently.Makesurethestudentshavethechronologyofthedevelopmentofcomputersintheirminds.Askthem:
1 Whowasthefirstpersontodevisetheearliestcomputer?
2 Whatdidhemakeandwhatdiditdo?
3 Whowasthenextimportantpersontodesigncomputers?
COMPREHENDING
1 Threereasonableanswersareacceptable,eachofwhichneedsareasonwithit.Thethreepossibleanswersaregivenbelow:
Itisacomputerbecauseitdescribes:
●itselfastheanalyticalmachinedesignedbyCharlesBabbage(whichwasthefirstdesignofacomputer).“Thenin1822IwasbuiltasanAnalyticalMachinebyCharlesBabbage.”
●AlanTuringasitsrealfather(andhedesignedthefirstrealcomputer).“MyrealfatherwasAlanTuring....”
●havingartificialintelligence(whichonlycomputershave).Peoplehavenaturalintelligence.“However,peoplethoughtIwassimple-mindeduntiltheydiscoveredIhad‘artificialintelligence’.”
2 Answerkey:
1642:
Thecomputerbeganasacalculatingmachine.
1822:
TheAnalyticalMachinewas madebyCharlesBabbage.
1936:
AlanTuringwroteabooktodescribehowcomputerscouldbemadetowork.
1960s:
Computershadnewtransistorsandbecamesmaller.
1960s:
Thefirstfamilyofcomputersconnectedtoeachother.
1970s:
Computerswerebroughtintopeople'shomes.
Now:
Computersconnectpeopleallovertheworldtogether
LEARNINGABOUTLANGUAGE
Discoveringusefulwordsandexpressions
AnswerkeyforExercise1:
1totally 2revolution 3artificialintelligence4birth
5simple-minded 6goby 7dealwith 8network 9truly 10anyway
AnswerkeyforExercise2:
revolution;network; wentby;totally;truly;simple-minded;Anyway;dealwith
AnswerkeyforExercise3:
1 totally 2amazed 3exciting 4excited 5cheaply 6unlucky
Discoveringusefulstructures
AnswerkeyforExercise1:
1 ...myfamilyandIhavebeenusedbybillionsofpeopletodealwithinformation....
2 Ihavetrulybeenbuilttoservethehumanrace....
AnswerkeyforExercise2:
1 Anewpersonalcomputerhasbeenboughtbyus.
2 Manyproblemshavebeenfoundwithournewcomputer.
3 APChasbeenbuiltthewaywewanted.
4 OurcomputerhasjustbeenjoinedtotheInternet.
5 Thecomputerhasbeenusedeverydaybyussinceweboughtit.
6 Alotofe-mailshavebeenwrittenonthecomputerinthepastyear.
USING LANGUAGE
Listeningandwriting
Thepurposeofthisexerciseistoencouragestudentstolistenandthenusewhattheyhaveheardtohelpthemfillinachartaboutcomputers.Itisanimportantexercisebecauseitlinksskillstogetherandusesthemtoproduceausefulpieceofwriting.
Makesurethestudentslookatthechartbeforetheylistentothetape.Thisistosharpentheirattentionandlistenfortheanswers.Thiswillalsohelpthemgetthegistofthetext.Whenfillinginthechart,thestudentswillhavetousetheirownexperienceaswellasinformationfromthelisteningtext.
LISTENINGTEXT
LIMING:
WhatareyoudoingDave?
DAVE:
I'mreadingaboutinformationtechnology.
LM:
Youmeanthingslikecomputers?
Inmyopinionthey'resoboringtoreadabout.They'reonlygoodtouse.
D:
Butthey'rejustonekindofIT.
LM:
Really?
SowhatelseispartofIT?
D:
We'vehadITforalongtime.Books,radiosandTVsarealsokindsofIT.
LM:
Oh.Ineverthoughtofthatbefore.Booksareawonderfulwayforustogetinformation.
D:
Yeah,Ibelievethattoo.Theyarecheapandeasytotakewithyoubutsometimestheinformationisoutofdate.
LM:
Iagree.Theworldischangingsofast.Butinmyopinionlisteningtosportsontheradioisbetterthananythingelse.SometimesIalsolistentoEnglishprogrammesontheradio.Buttheyspeaksofastandsometimesit'sdifficulttounderstandeverything.
D:
Yes.IalsolistentoEnglishontheradiobutit'seasiertofollowonTVbecauseyoucanalsoseewhatisgoingon.SometimesitismoreinterestingtowatchsportsonTVthanjustlistentothemontheradio.
LM:
Idisagreebecauseyougetsuchalotofinformationonthetechnicalaspectsofagameontheradio.Youdon'tgetthatonTV.ButIstillthinkthatthecomputeristhebestkindofIT.Youcanwatchafilmonit,writetofriends,getinformation,andfindoutwhatisgoingonintheworld.
D:
Iknow,butitisalsothemostexpensiveanditistoobigtocarrywithyoueverywhere.AlsotheInternethasnobodytocheckwhetherthatinformationyoufindthereiscorrect.Soyouhavetobecareful.
LM:
Well,IsupposeallkindsofIThavebothdisadvantagesandadvantages.
Suggestedanswers:
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