听力教程第二版第二册Unit5答案供参考文档格式.docx

听力教程第二版第二册Unit5答案供参考文档格式.docx

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saffair.

3.Ifbadlydoneitcouldputthemoffreadingforlife

4.Butthetaskshouldbeundertakengently.

5.Readingshouldneverbemadetolooklikeachore.

ExerciseB:

Itwouldbewrongtosetatimewhenachildshouldstartlearningtoreadandwrite.Parentsshouldencourageyoungstersagedtwotofivetoreadiftheyshowinterestsinit,butneverforcethemtolearntoread.Heorshemightlaterbe"

whenjoiningaclassofnon-readersatinfantschool.Thenitisuptheteachertoseethatsuchachildisgivenmoreadvancedreadingmaterial.

Similarly,ifachildcannotreadattheageofseventeachersandparentsshouldmakecertainthatheisnotdyslexic.Ifheis,specialisthelpshouldimmediatelybesought

Parentsshouldnotignoretheyoungchild'

sappealtoteachhimtoread.Butthetaskshouldbeundertakengently,withgreatpatienceandasenseofhumourReadingshouldneverbemadetolooklikeachoreandthechildshouldneverbeforcedtocontinue,ifhisinterestsstarttofalg

SectionTwoListeningComprehension

Part1Dialogues

Dialogue1DigitalSound

{Music}

MIKE:

Wow!

Nice.CDshavesuchgoodsound.DoyoueverwonderhowtheymakeCDs?

KATHY:

Well,theygetabunchofmusicianstogether,andtheysingandplay.

Comeon.YouknowwhatImean.Whyisthesoundqualitysogood?

Imean,whydoCDssoundsomuchclearerthancassettetapes?

Actually,Idoknowthat.

Really'

?

It'

sallbasedondigitalsound.CDsaredigital.Digitalsoundislikeseveralphotos,alltakenoneafteranother.It'

skindoflikepicturesofsound.Theintensityofthesound–howstrongitis--ismeasuredveryquickly.Thenit'

smeasuredagainandagain.Whenwehearthesound,itallsoundslikeonelongpieceofsound,butit'

sreallylotsofpiecesclosetogether.Andeachpieceisreallyclear.

M1KE:

Sodigitalislikelotsofshort"

pieces"

ofsound.

KATHY.Exactly.Thisisdifferentfromanalog*--that'

showtheyusedtorecord.Analogismorelikeonewaveofsound.Itmovesupanddownwithvolumeandpitch.Anyway,analogislikeasinglewave.Digitalislikeaseriesofpieces.

OK,Iunderstandthat.ButhowdotheymaketheCDs?

Itoldyou,Mike.Theygetabunchofmusicianstogether,andtheysingandplay.

Kathy!

No.Whatreallyhappensisfirsttheydoadigitalrecording--onvideotape.

Onvideotape.

Yeah,theyusevideotape.Sothenthevideotapeisplayedthroughacomputer.

OK.Whatdoesthecomputerdo?

Well,thecomputerisusedtofigureoutthe"

ofsoundweweretalkingabout;

howlongeverythingis,howfarapartspacesare.

OK.Sothecomputerisfiguringoutthoseseparate"

Yeah.Theyneedtodothattomakethemaster.

Themaster?

ThemasteristheoriginalthatalltheotherCDsarecopiedfrom.It'

smadeofglass.It'

saglassdiskthatspinsaround--justlikearegularCD.Andtheglassdiskiscoveredwithachemical.Theyusealasertobumthesignal,orthesong,intotheglassplate.Thelaserburnsthroughthechemical,butnotthroughtheglass.

Sothelasercutsthesoundintotheplate.

Right.Whatit'

sdoingiscuttinglittleholes.intothebackofthedisk.

Thoseholesarecalled"

pits."

Thelaserputsinthepits.

SoCDsreallyhavelittleholesontheback?

Ididn'

tknowthat.

Yeah.Tinypits.They'

retoosmalltosee.[Pause.]Anyway,thenthey'

vegotthemaster,andtheymakecopiesfromit.ThenyoubuyyourcopyandputitintheCDplayer.

PutitintheCDplayer...ThatpartIunderstand.

KATHY:

There'

sanotherlaserinyourCDplayer.ThelightofthelaserreflectsofftheCD.ThesmoothpartoftheCDreflectsstraightback,likeamirror.Butthelightthatbouncesoffthepitsisscattered.Anyway,thecomputerinyourCDplayerreadsthelightthatbouncesoffthepits.Andyougetthemusic.

MIKE:

Reflectedlight,huh?

...Uh...youknewwhatIlike?

Justrelaxing,listeningtomusic,andnotreallyworryingabouthowitgetsonthedisk.

Youwantmetoexplainitagain?

「Music」

A:

Quality

Recordingtechnique

Digitalsound

Muchclearer

Digitalsoundislikeseveralphotosalltakenoneafteranother.It'

sKindoflikepicturesofsound,Digitalislikeaseriesofpieces.

Analogicalsound

Aanlogismorelikeonewaveofsound.Itmovesupanddownwithvolumeandpitch.Analogislikeasinglewave

I.ThemakingoftheCDs

A.Recording

a.Theygetabunchofmusicianstogether,singingandplaying.

b.Firsttheydoadigitalrecording--onvideotape.

c.Thenthevideotapeisplayedthroughacomputer.

d.Thecomputerfiguresoutthoseseparate"

ofsoundtomakethemaster.

B.Themakingofthemaster

a.ThemasteristheoriginalthatalltheotherCDsarecopiedfrom.

b.It'

smadeofglass,coveredwithachemical.

c.Theyuselasertoburnthesignal,orthesong,intotheglassplate.Thelaserbumsthroughthechemical,butnotthroughtheglass.

d.Itcutslittleholesintothebackofthedisk.Thoseholesarecalled"

e.Theymakecopiesfromit.

II.Playingback

A.YoubuythecopyandputitintheCDplayer.

B.ThelightofthelaserreflectsofftheCD.

a.ThesmoothpartoftheCDreflectsstraightback,likeamirror.

b.Butthelightthatbouncesoffthepitsisscattered.

c.ThecomputerinyourCDplayerreadsthelightthatbouncesoffthepits.

d.Yougetthemusic.

Dialogue2LostinTranslation

Man:

Here'

soneIwouldn'

thavethoughtof.Youknowthose"

beforeandafter"

commercialsforlaundrysoap?

Woman:

Theoneswithapileofdirtyclothesononesideandthenthesameclothesafterthey'

ve

beenwashed?

Sure.

TherewasanAmericancompanythathadoneofthoseads.Itwasreallysuccessfulin

NorthAmerica.Intheadtherewasapileofdirtyclothesontheleft,aboxofthelaundrysoapinthemiddle,andapileofcleanclothesontheright.So,themessagewasthataboxofthisdetergent*wouldmakereallydirtyclothesclean.

Yeah?

SowhatdoyouthinkhappenedwhentheyusedtheadintheMiddleEast?

Idon'

tknow.

Thinkaboutit.IntheMiddleEast,languagesarewrittenfromrighttoleft.Peoplelookatthingsfromrighttoleft.

Soitlookedlikethesoapmadetheclothesdirty?

"

Oursoapwillmakeyourclothesdirty!

"

Notaverysmartadcampaign.

Theyshouldhavechangedtheorderofthepictures.Theyshouldhaveputthepictureofthecleanclothesontheleftsideandthedirtyclothesontheright.

Really.

Oh,here'

sanotherone.SomeshirtmakerputanadinaMexicanmagazine.

And?

Well,theadwassupposedtosay,"

WhenIworethisshirt,1feltgood."

Buttheymadeatranslationmistake.

Whatdidtheysay?

Insteadof"

WhenIworethisshirt,"

theadsaid,"

Until1worethisshirt,Ifeltgood."

UntilIworethisshirt,Ifeltgood"

Gee,changingonelittlewordgaveittheopposite

meaning.

Man:

Thearticlesayssometimesit'

snotjusttheadvertisingsloganthatgetscompaniesintotrouble.Sometimesthecompanynamecanscareoffbusiness.

Whatdoyoumean?

Well,therewasalargeoilcompanyintheUnitedStatescalledEnco:

E-N-C-O.

Yeah,Irememberthem.

TheyopenedsomegasstationsinJapan,andtheyadvertisedusingtheirAmericanname.Unfortunately,theydidn'

tknowwhatthewordmeansinJapanese.

Whatdoesitmean?

Enco"

isashortwayofsaying"

Enginestop"

inJapanese.

Great.Wouldyoubuygasolinefromacompanythatsaidyourcarenginewould

stop?

No,andneitherdidtheJapanese.

Exercise:

Productadvertised

Descriptionofthead

Message

Mistakemade

detergent

Intheadtherewasapileofdirt