unit 3教案Word文档下载推荐.docx
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unit 3教案Word文档下载推荐.docx
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Byfinishingthetimelineandthechart,helpstudentsgraspthebasicstructureandmainideaofthepassage.
考纲要求(教学重难点):
Teachingimportantpoints教学重难点
Understandhowdetailsareusedtosupporttopicsentences.
教学内容
T:
Haveyouputthemintherightorder?
Youwillfinditafterreadingthepassage.Nowturntopage18please.
StepIIIReading
Skimming
Getstudentsreadthewholepassageandtrytogetthemainideaofit.
Afterreading
Whatdoes“I”inthetitlereferto?
Ss:
Computer.
Whatisthemainideaofthepassage?
Thepassageismainlyaboutthehistoryanddevelopmentofcomputers.
Scanning
Correct!
Nowreadthepassageandfinishthetimeline.Withthistimeline,youwillhaveaclearideaofthedevelopmentofcomputer.
Checktheanswers.
Thepassagehasthreeparagraphs.Findoutthetopicsentenceofeachparagraph,andthedetailsthatareusedtosupportthetopicsentences.Thencompletethechartinactivity2.
Suggestedanswers:
Para.1
Para.2
Para.3
Topicsentence
OvertimeIhavechangedquitealot.
Thesechangesonlybecamepossibleasmymemoryimproved.
Sincethe1970smanynewapplicationshavebeenfoundforme.
Supportingdetails
●Caculatingmachine
●Analyticalmachine
●Universalmachine
●PC
●Laptop
●Tubes
●Transistors
●Chips
●Network
●Web
●Communication
●Finance
●Trade
●Robots
●Mobilephones
●Medicaloperations
●Spacerockets
Fromthischart,youwillknowthebasicstructureofthispassage.Asyoumayhavefoundthetopicsentencesarenotstandingtherealone,theyaresupportedwithdetailsanddate,whichmakethetopicsentencesmoreconvincing.NowIwillplaythetapeofthispassage.Listenandfindout/underlinethedifficultwordsandexpressions.
Teachergivessomeexplanations.
Whatcanbe“overtime”replacedby?
Astimegoesby.
Howdoyouunderstandtheword“simplify”?
Look!
(ontheboard:
simple+-ify).-ifyisasuffixwhichmeanstoturninto,makeorbecome.Forexample,beautify.Soifyouknowthemeaningof“simple”,youcaneasilygetthemeaningof“simplify”.Whocantellmeitsmeaning?
S:
Tomakesomethingeasierorlesscomplicated.
Whatdoes“it”inline9referto?
Itreferstothefactthatcomputerwasprogrammedbyanoperatorwhousedcardswithholes.
WhywasAlanTuringcalledcomputer’srealfather?
Iguessthat’sbecauseAlanmadecomputermorepowerful,whichcouldsolveanydifficultmathematicalproblem.
Whatdoes“thisreality”inline15referto?
Itreferstotherealitythatcomputerhadgrownaslargeasaroom.
Inparagraphtwo,therearetwosentenceswhichcontaintheuseof“so…that…”structure.Underlinethemandstudycarefully.
Showthefollowingonthescreen/board:
●Overtimemymemoryhasdevelopedsomuchthat,likeanelephant,IneverforgetanythingIhavebeentold!
●AndmymemorybecamesolargethatevenIcouldn’tbelieveit!
Helpstudentssumuptheformandfunctionofthisstructure:
Form:
so+adj./adv.+that+clause
Function:
Thisstructureisusedwhenemphasizingthedegreeoramountofsomethingbysayingwhattheresultis.
StepIVDiscussion
Dealwithactivity3onpage19.Letstudentsdiscusshowcomputershavechanged
ourlives?
Samplediscussion:
S1:
Ithinkit’simpossibletolivewithoutcomputers!
S2:
Whatmakesyousaythat?
Mygrandparentsdidn’tuseacomputerandtheywerestillabletoentertainthemselves,tooperatebigmachines,toanalyzedata,tomakerobotsandsoon.
Youareright.Butcomputersdochangethewaywelive.Theychangethewaywelearnbyprovidingdistance-learningprograms.Theychangethewaywecommunicatewiththeuseofe-mailandinstantmessenger.TheychangethewayweobtaininformationwithInternetsearchenginesuchasGoogleandBaidu.Theychangethewaywedealwithdocumentsandpictures.
Iagree.CanyouimaginewhatourlifewouldbelikeIfwecouldnotusecomputersanymore?
Wewouldgobacktotheworldwheneverythinggoesslowly.Forexample,sendmailsviatrainorairplane,whichtakesseveraldaysorevenlong;
gotolibrariestosearchforinformation,wherelimitedinformationareprovided;
spendlongtimetosolvedifficultmathematicalproblemsetc.Andontheotherhand,wemayhavemoretimeforoutdooractivitiesinsteadofspendingmuchtimeoncomputer.
Yes,computerschangedourlivesbothinagoodwayandinabadway.Itdependsonhowwemakeuseofit.Ihopewecanmakegooduseifit.
Doyouwanttoseehowcyberfriendsanswerthisquestion?
Lookatthescreen.
Showthefollowingonthescreenorletstudentsvisitthewebpage:
(Onethescreen)
User1
Computershavemadeiteasierforustoaccessawealthofinformationandhaveallbutrenderedprinterencyclopediasobsolete.Theyhavealsomadeiteasierandcheapertoadvertiseourbusinessanywherewewishanddobusinesswithanyoneanywhereintheworld.Onthedownsidehowever,computershavealsomadeiteasierforsexualpredatorstofindvictims,forcriminalstostealourhard-earnedmoney,andtoevenstealouridentity,somethingnearlyunheardofjustafewdecadesago.Also,childrenaremorelikelytositinfrontofacomputerandchatwhentheycouldjustaseasilyspeakwiththeirfriendsonatelephoneorgooutsideandplaylikechildrenusedtobeforethe"
computerrevolution"
.Aswithanynewtechnology,therearegoodandbadpoints,butintheendthegeneralpublicthroughtheiractionswilldeterminewhetherornotcomputershaveactuallyimprovedourlives.
User2
Ofcourse!
!
Theyhavechangedthewayweshop,play,chat,workandmore.
User3
Theyhavemadeusalazygeneration.
User4
Acomputerhaschangedmylifecertainlyevenstillataveryyoungage.It'
sfulfilledmydreams,knowledgeandmuchmore.Forsomeit'
sgainedthememploymentandgivingotherssomethingtodo.It'
sopenedanewworldofgaming,chattingandfindingadviceandinformation.ICOULDN'
TLIVEWITHOUTONE!
User5
Well,theymadeourliveseasier,themadeuslazierandtheygaveusthechanceto
havesomeadventurewhenwearebored.
User6
Majorityof"
addicted"
computeruserslack"
reallife"
socialskillsthesedays.
User7
Theyhurtmyeyes.
User8
Computerschangeourattitudes,thewaywelive,thewayweexpressourselves,thewaywearetooothers,viewsonlife,viewsoverall,howwedress,whatwelistentoo,whatwethinkofoneanother,howwework,interests.Basicallyeverythingwithoutcomputerswewouldn’thavetheinternetandlikenewspapersradiosmagazinesandtelevisionwegettheseallontheinternet.Thesechangehowwearesobasicallyeverythingaboutit.Alsowegetaddictedandlearnaboutthingsthatmaybeweshouldn’t.Alsocangetintotroublee.g.downloading,piracyalldonewithacomputer.Goodthingsarethatcomputershavehelpedreachforwardintothefuture.
Helpswithtechnology,educationandwillhelpthefuturegenerations.Sooneverythingwillberunbycomputersthegoodthingforusiswedon’thavetoliftafingerthebadthingiswillcomputerstakeover.
StepVHomework(retelling)
Supposeyouworkforaninformationtechnologymagazine.Writeashortpassagewhichbrieflyintroducesthehistoryanddevelopmentofcomputers.Don’twriteinthefirstperson.
授课反思:
学生举一反三的能力仍人须加强
TheSecondPeriodLanguagestudy
3periods
a.重点词汇和短语
revolutionnetworksimplifysummobilesolveexploretotallyanyhowfinanceartificialtechnologyintelligentapplicationWebrealitylogically
b.重点句子
Astimehadgoneby,Ihavebeenmadesmallerandsmaller.
Ihavebeenusedinofficesandhomessincethe1970s.
Overtimemymemoryhasdevelopedsomuchthat,likeanelephant,IneverforgetanythingIhavebeentold!
Sincethe1970smanynewapplicationshavebeenfoundforme.
Ihavealsobeenputintorobotsandusedtomakemobilephonesaswellashelpwithmedicaloperations.
IhaveevenbeenputintospacerocketsandsenttoexploretheMoonandMars.
Enablestudentstolearnthemeaningsanduseofsomekeywordsinthereadingpassage.
Enablestudentstolearntheformandfunctionofpresentperfectpassivevoice.
Bywritingapoemusingpresentperfectpassivevoice,enablestudentstousethestructurefreelyandcreatively.
Teachingimportantpoints教学重点
Howtochangethesentencesintothepresentperfectpassivevoice.
Teachingdifficultpoints教学难点
Personalization,Inductionandimitation.
StepIRevision
Checkthehomework.Asktwostudentstoreadthepassagetheyhavewritten.Theirpassageshouldbebriefandincludethekeyinformationorfactsaboutthedevelopmentofcomputers.
StepIIDiscoveringusefulwordsandexpressions
Lookatactivity1.Thesearethemeaningsofsomewordsorexpressionsinthetextwelearnedyesterday.Findoutthesewordsorexpressions.
Nowlookatthewordsinactivity2.Doyouknowtheirmeanings?
Checktheirmeaningsinyourdictionaries.Thencompletethepassagewiththewords.
Nowactivity3.Lookatthephrasesinboldinthestory.Whatdotheyhaveincommon?
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