新课标必修2Unit3unit3computers教案Word格式.docx
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新课标必修2Unit3unit3computers教案Word格式.docx
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2,WhatelsedoyouthinkthecomputerandInternetwillhelpyoutodo?
3.Whichpar(ts)ofthecomputerdoyouthinknee(ds)moreimprovement?
Why?
YoucanuseExercise1intheWorkbook(p56)asreferenceforthepartsofthecomputer.
(二)测试性评价
Explainhowthecomputertechnologyhasbeendevelopingandcompletetheflowchartbelow.Thengiveabrieforalpresentationonthedevelopmentofcomputertechnologywiththehelpofthechart.Whenyou'
repreparingit,youcanrefertothereadingpassageonPage18oftheStudent'
sBo.okYouroralpresentationwillbelessthanthreeminutes.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。
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。
rmafraidyourbikeisintheway.看来你的自行车挡着道了。
5.afterall
1)inspiteofwhathasbeensaid,doneorexpected^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一一别忘了,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,rilwatchovertheclotheshere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.ItistogetthestudentsthinkingaboutthedifferentwayscomputerscanbemadeDothispartofthelessoninpairsandasaspeakingactivity.
PRE-READING
ThiscanbeacontinuationoftheWarmingUp.LetthestudentsdiscussthequestionssetoutintheStudent'
sBook
READING
Thisisashorthistoryofthedevelopmentofcomputersoverthelast100yearsItintroducesalotofnewandtechnicalwords,whichareonlyusedforcomputer(ssuchas“artificialintelligence“netwo”rk)o”r.
1Teachingnewwordsandstructures
2Understandingideas
Thisisthepurposeofthereadingandsoitisimportantthatthestudentslearntouseallthecluesinthetexttohelpthemunderstandthegistofwhattheyarereading.Soencouragethemtolookatthepicturesandtheheadingandguesswhatthetextmightbeabout.ThenasktheclasstoreadthepassagesilentlyMakesurethestudentshavethechronologyofthedevelopmentofcomputersintheirminds.Askthem:
1Whowasthefirstpersontodevisetheearliestcomputer?
2Whatdidhemakeandwhatdiditdo?
3Whowasthenextimportantpersontodesigncomputers?
COMPREHENDING
1Threereasonableanswersareacceptable,eachofwhichneedsareasonwithit.Thethreepossibleanswersaregivenbelow:
Itisacomputerbecauseitdescribes:
•itselfastheanalyticalmachinedesigntebyCharlesBabbage(whichwasthefirstdesignofacomputer).“Thenin1822IwasbuiltasanAnalyticalMachinebyCharlesBabbage”
•AlanTuringasitsrealfathe((andhedesignedthefirstrealcomputer.“My
realfatherwasAlanTuring....”
•havingartificialintelligenee(whichonlycomputershave).Peoplehave
naturalintelligenee.“However,peoplethoughtIwassimple-mindeduntilthey
discoveredIhad‘artificialintelligenee'
.”
2Answerkey:
1642:
Thecomputerbeganasacalculatingmachine
1822:
TheAnalyticalMachinewasmadebyCharlesBabbage
1936:
AlanTuringwroteabooktodescribehowcomputerscouldbemadetowork.
1960s:
Computershadnewtransistorsandbecamesmaller
Thefirstfamilyofcomputersconnectedtoeachother
1970s:
Computerswerebroughtintopeople'
shomes
Now:
Computersconnectpeopleallovertheworldtogether
LEARNINGABOUTLANGUAGE
Discoveringusefulwordsandexpressions
AnswerkeyforExercise1:
1totally2revolution3artificialintelligenee4birth5
simple-minded6goby7dealwith8network9truly10anyway
AnswerkeyforExercise2:
revolution;
network;
wentby;
totally;
truly;
simple-minded;
Anyway;
dealwith
AnswerkeyforExercise3:
1totally2amazed3exciting4excited5cheaply6uniucky
Discoveringusefulstructures
1...myfamilyandIhavebeenusedbybillionsofpeopletodealwithinformation....
2Ihavetrulybeenbuilttoservethehumanrace....
1Anewpersonalcomputerhasbeenboughtbyus
2Manyproblemshavebeenfoundwithournewcomputer
3APChasbeenbuiltthewaywewanted
4OurcomputerhasjustbeenjoinedtotheInternet
5Thecomputerhasbeenusedeverydaybyussinceweboughtit
6Alotofe-mailshavebeenwrittenonthecomputerinthepastyear
USINGLANGUAGE
Listeningandwriting
Thepurposeofthisexerciseistoencouragestudentstolistenandthenusewhattheyhaveheardtohelpthemfillinachartaboutcomputers.Itisanimportantexercisebecauseitlinksskillstogetherandusesthemtoproduceausefulpieceofwriting.
MakesurethestudentslookatthechartbeforetheylistentothetapeThisistosharpentheirattentionandlistenfortheanswersThiswillalsohelpthemgetthegistofthetext.Whenfillinginthechart,thestudentswillhavetousetheirownexperieneeaswellasinformationfromthelisteningtext
LISTENINGTEXT
LIMING:
WhatareyoudoingDave?
DAVE:
rmreadingaboutinformationtechnology.
LM:
Youmeanthingslikecomputers?
Inmyopinionthey'
resoboringto
readaboutThey'
reonlygoodtouse
D:
Butthey'
rejustonekindofIT.
Really?
SowhatelseispartofIT?
We'
vehadITforalongtime.Books,radiosandTVsarealsokindsof
IT.
Oh.IneverthoughtofthatbeforeBooksareawonderfulwayforusto
getinformation.
Yeah,Ibelievethattoo.Theyarecheapandeasytotakewithyoubut
sometimestheinformationisoutofdate
Iagree.Theworldischangingsofast.Butinmyopinionlisteningto
sportsontheradioisbetterthananythingelse.SometimesIalsolistentoEnglishprogrammesontheradio.Buttheyspeaksofastandsometimesit'
sdifficulttounderstandeverything
Yes.IalsolistentoEnglishontheradiobutit'
seasiertofollowonTV
becauseyoucanalsoseewhatisgoingonSometimesitismoreinterestingtowatchsportsonTVthanjustlistentothemontheradio
Idisagreebecauseyougetsuchalotofinformationonthetechnical
aspectsofagameontheradio.Youdon'
tgetthatonTV.ButIstillthinkthatthecomputeristhebestkindofIT.Youcanwatchafilmonit,writetofriends,getinformation,andfindoutwhatisgoingonintheworld.
Iknow,butitisalsothemostexpensiveanditistoobigtocarrywith
youeverywhere.AlsotheInternethasnobodytocheckwhetherthatinformationyoufindthereiscorrect.Soyouhavetobecareful
Well,IsupposeallkindsofIThavebothdisadvantagesand
advantages
Suggestedanswers:
TypeofIT
Advantages
Disadvantages
TV
Youcanbothlistenandwatch
Youcannotwritetofriends.
Web
Youcanfindinformation.
Itisveryexpensive.
Radio
YoucanlistentoEnglish.
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