听力第二册UNIT5Word文档下载推荐.docx

听力第二册UNIT5Word文档下载推荐.docx

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Howoldishe?

4.A:

CanIbookatablefortonight,please?

Certainly.Howmanyisitfor?

A:

There'

llbethreeofthem.

5.A:

Canyougetsomecornflakes?

Doyouwantalargeorsmallpacket?

Asmallone.

Exercise:

a.wantb.grapes

a.1ikeb.them

a.thinkb.scotland

a.beenb.there

a.callb.David

B:

a.oldb.he

a.bookb.tonight

a.certainlyb.many

A:

a.threeb.them

a.getb.cornflakes

a.largeorsmallb.packet

asmallb.one

Part2listeningandNote-taking

Reading

Whenshouldachildstartlearningtoreadandwrite?

ThisisoneofthequestionsIammostfrequentlyasked.Thereisnohardandfastrule,fornotwoarealike,anditwouldbewrongtosetatimewhenallshouldstartbeingtaughttheinsandoutsofreadingletterstoformwords.

Ifathree-year-oldwantstoread（orevenatwo-year-oldforthatmatter）,thechilddeservestobegiveneveryencouragement.Thefactthatheorshemightlaterbe"

bored"

whenjoiningaclassofnon-readersatinfantschoolistheteacher'

saffair.Itisuptotheteachertoseethatsuchachildisgivenmoreadvancedreadingmaterial.

Similarly,thechildwhostillcannotreadbythetimehegoestojuniorschoolattheageofsevenshouldbegiveneveryhelpbyteachersandparentsalike.Theyshouldmakecertainthatheisnotdyslexic*.Ifheis,specialisthelpshouldimmediatelybesought.

Althoughparentsshouldbecarefulnottoforceyoungstersagedtwotofivetolearntoread（ifbadlydoneitcouldputthemoffreadingforlife）thereisnoharminpreparingthemforsimplerecognitionoflettersbylabellingvariousitemsintheirroom.Forinstance,byanicepieceofcardboardtiedtotheirbedwithBEDwritteninneat-bigletters.

Shouldtheyoungchildaskhisparentstoteachhimtoread,andiftheparentsarecapableofdoingso,suchanappealshouldnotbeignored.Butthetaskshouldbeundertakengently,withgreatpatienceandasenseofhumour.Readingshouldneverbemadetolooklikeachoreandthechildshouldneverbeforcedtocontinue,shouldhisintereststarttoflag*.

ExerciseA:

1.Thereisnohardandfastrule,fornotwoarealike.

2.Thefactthatheorshemightlaterbe"

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.Theygetahunchofmusicianstogether,andtheysingandplay.

Quality

Recordingtechnique

Digitalsound

Muchclearer

Digitalsoundislikeseveralphotosalltakenoneafteranother.It'

sKindoflikepicturesofsound,Digitalislikeaseriesofpieces.

Analogicalsound

Aanlogismorelikeonewaveofsound.Itmovesupanddownwithvolumeandpitch.Analogislikeasinglewave

Dialogue2HowDoTheyMakeCDs?

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:

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

MIKE:

Reflectedlight,huh?

...Uh...youknewwhatIlike?

Justrelaxing,listeningtomusic,andnotreallyworryingabouthowitgetsonthedisk.

Youwantmetoexplainitagain?

「Music」

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.

Part2Passages

Passage1Toothbrush

Brushingourteeth--suchacommonplaceactivitytoday,hasbeenaroundforalongtime.Imagine:

theancientEgyptianswerealreadyconcernedabouttheirdentalhygiene!

Weknowthistodaybecausetheyalsohadthegoodhabitofbeingentombed*withalltheirtreasures...Sowewereabletodiscoverthattombsfrom3,000yearsbeforeChristcontainedsmalltreebrancheswhoseendshadbeenfrayed*intosoftfibers.It'

scomicaltoimagineanEgyptianstoppingtobrushhisteethafterameal,onhisbreakfrombuildingapyramid!

Thetrueancestorofourtoothbrush,however,wasinventedbytheChineseinthe15thcenturyandbroughtbacktoEuropebytravellers.ThistoothbrushwasmadeofhairsfromtheneckofaSiberianwildboarwhichwerefixedtoabambooorbonehandle.ThepeopleoftheOccident*,however,foundthewildboarhairstoostiff.Atthetime,veryfewpeopleintheWesternworldbrushedtheirteeth,andthosewhodidpreferredhorsehairs,whichweresofterthanthoseofthewildboar!

InEurope,itwasmorecustomaryaftermealstouseagoosefeathertoothpick,oronemadeofsilverorcopper.Otheranimals'

hairwasalsousedfordentalcare,rightupuntilthiscentury.ButitwasthepoorSiberianwildboarthattookthebruntofit.Theanimalwasimportedforitsneckhairsforalong,longtime...infact,untilnylonwasinvented,inthe20thcentury!

In1937,intheDuPontlaboratorie