第二单元《廉价货》以词汇为主，重点在练习Vocabulary题。
第三单元《血液检查》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary和Question题。
一、本单元划分为四个部分：
I:Whatarebloodtestsfor?(Paras1)
II:Bloodisavitalpartofyourbody?(Paras2—4)
III:Functionsofbloodtests.（Paras5—12）
IV:Bloodtestsarenecessarytokeepyourselfhealth.（Paras13）
二、回答问题Question：
1．Whydoestheauthorsaythatyourbloodisavitalpartofyourbody?
Answer:Because:
1)Bloodpicksupoxygeninyourlungsandcarriesittoyourcells,whichusetheoxygentoproduceenergy.
2)Bloodcarrieswastesawayfromyourcells.
3)Bloodcarrieswhitebloodcellsanddisease-fightingchemicalscalledantibodiestoplaceswhereforeigninvaderssuchasbacteriaandvirusesarecausinginfections.
4)Bloodcarriesfoodfromyourstomachandsmallintestinetoallpartsofyourbody.
2.Whatistheuseofwhitecellsandantibodies?
Theuseofwhitecellsandantibodiesistogobbleuptheinvadersandknockthemout.
3.Whatisthefirststeptofindoutthebloodtype?
Thefirststeptofindoutyourbloodtypeisthatthedoctorsendsyourbloodto laboratory.Thereyourredcellsareseparatedfromtheotherpartsofyourblood.
4.Howcanthetechnicianfigureoutyourbloodtype?
Thetechnicianmixesyourredbloodcellswithtwokindsofbloodserum.Onecontainsanti-Aantibodies,theothercontainsanti-Bantibodies.Byfindingwhichmixturecanmaketheredcellsclumptogether,hecanfigureoutthebloodtype.
5.WhatisCBCusedfor?
CBCisusedtofindoutwhetherthenumberofyourwhitecellsishigherthanitoughttobe.
第四单元《嘿，我是顾客》以词汇为主，重点在练习Vocabulary题。
第五单元《其它行星上有生命吗？当然有！》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary和Question题。
一、本单元划分为三个部分：
1．Theimportanceofspacestations.
2.Explorations.
3.Whetherthereareotherinhabitedplanets.
二、回答问题Question：
1.Whyisitimportanttohavescientificstationsinspace?
Orbitalstationsareusedtoprovideidealconditionsforobservingstarsobjectsinspace.
2.Whydoestheauthorsaythatnonewgalaxyarethoughttoexist?
Becausenearlyallthegalaxieswerebornatthesametime,whentheuniversewasconstituted15billion(light)yearsago.
3.Accordingtotheauthorwhatkindofconditionisneededtoobservethebirthofstars?
Toobservethebirthofagalaxythathappenedsolongago,1)youhavetoseeaverylongway.2)youneedtohaveorbitalstationstoprovideidealconditionstoobserve.
4.Explaintheexplorationwehavesofar.
1)In1989thesatelliteVoyagerIIwillreachNeptuneafterajourneyofthreeandahalfyears.
2)FiveprobesweresenttorendezvouswithHalley’scomet.
3)Explorationofthesolarsystemismoreorlessunderway.
5.Doyouthinkthereareinhabitedplanets?Whyorwhynot?
Yes,Ithinkthereare,becausenomatterhowfarbackintotheuniversewelook,wefindthesameelements:atoms,molecules,stars,galaxies.Wecanshowthatthelawsofphysicshaveremainedunchangedthrough15billionlightyears.
第六单元《草地上的黄昏劫案》以词汇为主，重点在练习Vocabulary题。
第七单元《适者生存》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary和Question题。
回答问题Question：
1．Whatkindofchangeisevolutionarychange?
Ifthenewcreatureisabletoreproduceitselfsothatitsyoungalsohavethenewcolor. Thischangeincolorisevolutionarychange.
2.WhydidthePepperedMothbegintochangecolorintheindustrialareas?
Inindustrialareas,pollutioncoveredbarkswithsootandgrime.ThedarkerPepperedMoths werelessvisibleandmorelikelytosurvive.SoPepperedMothsbegantochangecolor.
3.WhatmethodisemployedinthedevelopmentofParagraph5?
Definitiongivingmethod.
4.Whatisnaturalselection?
Amutationhappenstosuitanewenvironment,andthe‘odd’creaturesurvivesbecauseitisbetterfitted.Thenitreproducesandanewtypeofcreatureevolves.Meanwhiletheothershavebecomeunsuitedtothechangedenvironment.Theymusteitherchangetheirbehaviourorbecomeextinct.
5.SmokecontrolprogammeshavebeenintroducedinindustrialregionsinBritainsince1952.WhatpredictioncanyoumakeaboutthePepperedMoth?
ThePepperedMothswillbecomelighterincolor.
第八单元《计算机是什么》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary和Question题。
一、本单元划分为四个部分：
1．Thewaysofconveyingandprocessinginformationbeforetheinventionofcomputers.
2.Thefunctionsofcomputers.
3.Twogroupsofcomputers.
4.Acomparisonofcomputersandhumanminds.
二、回答问题Question：
1.Howdidprimitivemenconveyinformation?
Theycarvedword-picturesonthewallsofancientcavesandhieroglyphicsonstonetablets.
2.Howdidmentrytoextendtherangeofhissensesandthepowerofhismind?
Theyhaveinventedmanyinstrumentstohelpthemseebetterandunderstandmore,suchastelescope,microscope,radio,telephoneandtelegraph.
3.Explainthedifferencebetweendigitalcomputersandanalogcomputers?
Digitalcomputersworkbyusingspecificinformationwhichisusuallyintheformofnumbers.Analogcomputers,ontheotherhand,usuallyprocesscontinuousinformation.
4.WhywasLordKelvin’smachineregardedasoneofthefirstanalogcomputers?
Becausehismachinegavecontinualindicationsofhowtidesweretoriseandfall,thatis,itprocesscontinuousinformation.
5.Compareandcontrastcomputerswiththemindsofmen.
Computers’advantages:
1)theycanworkthroughaseriesofproblemsandmakethousandsoflogicaldecisionswithoutbecomingtired.
2)theycanreachsolutionstoproblemsinafractionoftimeittakesmentodothejob.
3)theycanreplacemenindull,routinetasks.
Computers’disadvantages:
1)theyarenotcreative.
2)theycannotexercisevaluejudgements.
3)theyhavenooriginality.4)theirachievementsarenotverygreatwhencomparedtowhatthemindsofmencando.
第九单元《信鸽是如何找到家的？》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary和Question题。
一、本单元划分为三个部分：
1．Thequestion.(1---4)
2.Thefirstexperiment.(5—7).Thesecondexperiment(8—10).
3.Conclusion.Thereareotherquestionsstilltobeanswered.(12—13)
二、回答问题Question：
1.Whydoyousaythemysteryisveryold?
Becausepigeonshavebeenusedasmessengersforhundredsofyearsbuttheirabilitytofindhomeisstillunknown.
2.Whycannotwemixupthepigeons’senseofdirectionbyturningroundandround?
Becausetheyusethesunortheearth’smagneticfieldtotelldirection.
3.Howcanwemixupthepigeons’direction?
Onsunnydayswecanshifttheirbiologicalclocks.Oncloudydayswecanattachedastronglittlebarmagneticontheirbacks.
4.Howdidthescientistsprovethatpigeonshaveabuilt-inclock?
Inanumberofexperiments,theyattachedstronglittlebarmagnetictoonegroupofpigeonsandlittlebrassbarstotheothergroup.Bothweretakenawayfromhomeandletgo.Onsunnydays,noneofthemagnet-pigeonswerefooled.However,oncloudydays,thebrasspigeonschosetherightdirectionwhilethemagnet-pigeonsactedcompletelylost.
5.Havethescientistsansweredtheoldmystery?Explainit.
No,theyhaven’tfullyansweredthequestion.Thoughtheyhavediscoveredhowpigeonstelldirection,(thatis,theyusethesunorusetheearth’smagnet)theyhaven’tfoundouthowpigeonsknowwherehomeis.
第十单元《太空行走》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary和Question题。
一、本单元划分为三个部分：
1．Whatspacelookslike.(1---3)
2.Preparationsforthefirstspacewalking.(4---6)
3.Thefirstspacewalking.1)Beforewalkingoutofthespaceship(7—8).2)Afterwalkingoutofthespaceship.(9---11)
二、回答问题Question：
1.Whatdoestheouterspacelooklike?
Thewholeworldseemedtobeblack,blacknothingness.Theskywasblackwithbright,shinningstarsthatnevertwinkled.Thesun,awhite,burningdisc,seemedtohangintheblackvelvetofthesurroundingheavens.
2.Whatwouldhappeniftheearthhadnogravity?
Iftheearthhadnogravity,ourfeetnolongerstayontheground,wefloataroundintheair,andtheslightesttouchmaysendusdriftingoffintheoppositedirection.
3.WhatdidtheastronautsknowafterthelaunchingofSputnik?
Itwasindeedpossibletosendobjectsfarenoughoutofrangeofearth’sgravitysothattheywouldnotfallbacktoearth.Rather,suchobjectscouldbeforcedtorevolveabouttheearth,justasthemoondoes.
4.Whywoulditbemuchbettertolaunchspaceshipsfromthemoon?
Ifspaceshipswerelaunchedfromspaceorfromthemoon.Theabsenceofweightwouldpermittheshipstobelaunchedwithgreatspeedatreducedpressures.Arelativelysmallexplosionwouldbeenoughtosendashipoffataveryfastrate.
5.HowdidLeonovfeelandwhatdidhefindduringhiswalkinspace?
Leonovfoundtheearthappearedasahuge,rounddisc,fillingalargepartoftheskyandtherelifofhillsandmountainswasmoreeasilyobservedfromthatdistancethanfromaplaneflyingatafewthousandfeet.Hewasenjoyingthecosmossomuchthathefeltdisappointedtohavetostophiswanderingssosoon.
第十一单元《我们需要额外的维生素吗？》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary和Question题。
回答问题Question：
1.Whydomanypeopleaskthequestion“howmanyofusarehealthy,andwhatisanormaldiet”?
Becausethereisanelementofdoubtintheirmindsaboutthequestion.
2.FindasentenceoranexamplefromParagraph1toshowthatmosttinned,processedand driedfoodsarenottrue“junk”foods.
Mosttinned,processedanddriedfoodscontainusefulamountsoffat,protein,carbohydrate,vitaminsandminerals.
3.Whoneedsextravitamins?
Thepeoplewhodoliveon“junk”foodsmightneedextravitamins.
4.IstheeffectofvitaminEknowntousall?Why?
No,becausethisisanunexploredareainvitaminresearchandtheonlyknownadvantagesof vitaminEareconfinedtospecializedmedicalcases.
5.Whydoplacebopillssometimesworkforsomepatients?
Becausemanyofusreactfavourablytoanykindofinteresttakeninoutproblemsandderiveasmuchbenefitfromthataswewouldfromamedicaldrug.
第十二单元《消费者》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary和Question题。
一、本单元划分为四个部分：
1．ConsumersareimportanttoAmericaneconomy.(1---6)
2.Thelawofsupplyanddemand.(7---14)
3.Americanconsumersborrowmoneytospend.(15—21).
4.ThedifferencesbetweenAmericaneconomicsystemandsocialistcountries’economicsystem.(22---29)
二、回答问题Question：
1.Isthereacontradictionbetweenpeople’sneedsandtheirincomes?Ifthereis,explainthe contradiction.
Yes,thereis.Theirneedsarealmostendless,buttheirincomesaren’t.
2.Ifthepricefallsbelowwhatagoodscost,whatwillthesellerdo?
Thesellerwillbediscouragedproduction,perhapsbedriventhehigh-costproducersoutofbusinessorforcethemtomakesomethingelse.
3.Giveoneexampletoshowthatpriceistheguide-postinafree-marketeconomy.
Farmersperiodicallyplantlesswheatorraisefewercattleifthepricesforthosecommoditiesgivetoolittlereturnforthecostinvolved.
4.Howcanyoumakeawiseuseofdebt?
IfIcanmeetthescheduleofpaymentsforloansorcreditcards,IwillusedebttobuythethingsIwantmostnow,ratherthanwaittoaccumulatethefullpurchaseprice.
5.WhycandoctorsinAmericanearnalotofmoney?
Becausesocietyplacesamonetaryvalueonvariousprofessionsandskillsbasedonthelawofsupplyanddemand.Doctorsmuststudylongyearstodevelopspecialskillsandtherefore,theyareinshortsupply.
第十三单元《妇女与烟草》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary和Question题。
一、本单元划分为二个部分：
1．Women’shealthisseriouslyaffectedbysmoking.general(1---3),specific(4—6)
2.Thingscanbedonetohaltandreversesmokingamongwomen.(7---15)
二、回答问题Question：
1.Whatistheauthor’spredictionoftobaccoindustryintheyear2025?
Theglobaldeathtollfromtobaccobytheyear2025mayincreasetoeightmilliondeathsperyear.
2.Whyhasthescaleofsmokingreceivedsurprisinglylittleattention?
Becausesmokingisstillseenbymanyasmainlymaleproblem,perhapsbecausemenwerethefirsttotakeupthehabitandthereforethefirsttosuffertheill-effects.
3.Whatarethemainproblemssmokinghascaused?
Smokingcauses1)thesamediseaseinwomenasinmenandthegapbetweentheirdeathratesisnarrowing.2)Therearedramaticallyincreasingtrendsinrespiratorycanceramongwomenindevelopedcountries,andthecasualrelationshipofsmokingtolungcancerisclear.3)Women’shealthisalsoaffectedbythesmokingofothers,thatis,bypassiveorinvoluntarysmoking.
4.Whatactionshouldbetakentohaltorreversethetobaccoepidemicamongstwomen?
Weshouldreducethealreadyhighlevelofsmokingamongwomenintheindustrializedworldandensurethatthelowlevelofsmokingindevelopingcountriesdoesnotincrease.
5.Whatdoyouthinkofthesmokingprobleminourcountry?
Itisveryseriousinourcountry.Manyyoungpeople,includinggirls,takeupsmokingandalargenumberofpeoplesufferordieoftobacco-relateddiseases.
第十四单元《工业中的水》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary和Question题。
回答问题Question：
1.Whatessentialfunctionsdoeswaterfulfilinmodernindustry?
1)Waterisusedasarawmaterial;
2)Itisessentialforcoolingmachinery;
3)Itprovidessteam;
4)Itisoneofthemostimportantsourcesofpower.
2.Iswaterinexhaustibleasasourceofpower?WhyorWhynot?
Yes,becauseitspowerisultimatelyderivedfromtheforceofgravityandfromthesunandthereisawatercycle.
3.Inmodernindustry,howiswaterusedasasourceofpower?
1)Waterisusedtoproduceelectricity;
2)Waterisavitalrawmaterialinthetextileindustries;
3)Waterisavaluablerawmaterialbecauseofthedissolvedmineralsitcontains.
4.Howcanarivergenerateelectricity?Whatconditionsdoesariverhavetohave?
Arivergenerateelectricitybyconstructingorenlargingwaterfalls.Theconditionsforriverstoproduceelectricityisthat1)therivermusthaveanadequateflowofwater;2)theamountofwaterintherivershouldnotvarytoomuchfromseasontoseason;3)therivermustbefairlyneartheindustrialcenters.
5.Canwaterbeusedinanyindustry?Inthereanyspecialcase?Whatisit?
No,thetextileindustriesareaspecialcase.Softwaterisrequiredintheseindustries.
第十五单元《市场抽样调查》以词汇为主，重点在练习Vocabulary题。
第十六单元《从微机繁荣中获取最大利益》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary和Question题。
一、本单元划分为四个部分：
1．Thecostofcomputershasbeenfalling.(1)
2.Microcomputerscanwreakhavoc.(2---3)
3.Hardware,softwareandcomputerlanguages.(4---6)
4.Twobasicformsofsoftware:customsoftwareandpackage.(7---8)
二、回答问题Question：
1.Whatisthenameforthedepartmentinacompanythathousesthecomputerandthestaffwhoworkwithit?
ItisComputeringDeparment.
2.Thegreatestdangerfacingcompaniesisthatthewholesystemwilllosethesaleslodgerdebtersandallifthedateiscorrupted.
3.BASICandCOBOL.
4.Thethreestagesaredesign,programming,testing.
5.Thedifferencesbetweencustomwrittensoftwareandpackagesoftwarearethat1)customsoftwarecansaidtoresembleabespokesuit,whilepackageis‘offthepeg’.2)Withabespokesystem,thewholedevelopmentcostmustbebornebyoneuser;withapackage,thatcostisspreadovermanyusers,sothatpopularpackageswhichsellinlargenumbersarerelativelycheap.
第十七单元《为孩子做的最重要的事》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary和Question题。
一、本单元划分为三个部分：
1．Trelease’ssecretineducation.(1—6)
2.Trelease’sownexperience.(7---11)
3.Treleaseadvocatesthatparentsshouldreadtotheirchildren.
二、回答问题Question：
1.Becausetheydon’tquitebelieveTreleaseandtheythinktheyhavenotimetoreadtotheirchildren.
2.Readingtochildrenbuildsvocabulary,stimulatesimagination,stretchestheattentionspan,nourishesemotionaldevelopment,andintroducesthetexturesandnuancesofEnglishlanguage.
3.Becausetheseparentswererarelyreadtoaschildren.
4.Readingaloudtotheirchildren.
5.Theauthorwantstotellreadersthatreadingaloudtochildrenplaysaveryimportantroleinchildren’sgrowthandthatparentsshoulddothisassoonaspossible.
第十八单元《颜色与欧洲人》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary和Question题。
一、本单元划分为二个部分：
1．Europeancountrieshavedifferentpreferencesforcolors.(1—7)
2.Colorpreferenceskeepchanginginfashionindustry.(8---20)
A.Colorischangingcolorbeforeoureyes.(8—11)
B.Expertspredictcolor.(12---14)
C.Britishpeoplehaveachangedsenseofcolor.(15---17)
D.Thetendencyofcolordevelopment.(18---20)
二、回答问题Question：
1.TheItalianslikeolivegreen,pumpkin,ecrubecauseItaliansaresophisticatedandthelongItaliansummers,andoliveskinsofthepeopleareperfectlysuitedtodeep,richcolorsorverybrightcolors.
2.IntheThirties.Later,pinkisdifferent.Itnolongershocks,andseemstame.
3.Hemaysufferheavylossesbecausenooneknowsforsurewhatwillsellandwhen.
4.Theydeterminethekeycolorsforfashionandinteriors.TheymeettwiceayeartopredictthecolorstheEuropeanswillallwanttowear,orbesurroundedby,twoyearshence.
5.Thetendencyofcolordevelopmentismoresophisticatedandmoresubtle.
第十九单元《当心被污染的海洋》，本单元2001年考过，因此以词汇为主，重点在练习Vocabulary题。
第二十单元《正在消失的野生动物》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary和Question题。
一、本单元划分为二个部分：
1．Thousandsofanimalspecieshavecomeandgonethroughthepassingmillennia.(1—3)
2.Someanimalsaredisappearing.(4---9)
A.Over-huntingofpredators.(4—7)
B.Destinationofhabitat.(8)
C.Pesticides.(9)
二、回答问题Question：
1.Throughthepassingmillennia,thousandsofanimalspecieshavecomeandgonegraduallyasaresultofchangesinclimate,inhabitatandinthegenesofanimalsthemselves.Recentlythesurvivalofmanyanimalsisunderunprecedentedpressurebecauseofthetremendousexpansionofmoderncivilization.
2.Manplaysamajorpartinupsettingthenaturalbalancebecausemostcausesarisesinthegreedandpoorplanningofmanhimself.
3.Predatorshavebeguntobeattackedandmanyofthemareextinctandothersareplacedontheendangeredspecieslist.
4.Predatorshelpmaintainthehealthoftheirpreyspeciesbyeliminatingthediseased,young,old,andinjured.Predatorslikethemountainlionandthewolfhelptokeepthedeerherdshealthy.Theirkillalsoprovidesfoodforscavengersthatfeedoncarrion.
5.Becauseeveryspeciesthatbecomesextinctisgoneforever.Witheachdepartureasmallpartofthespanersityofnaturethatmakeslifesointerestingisalsogone.Manwillhaveonlyendlesscitiesandhousesandroadsthatcrossbarrencountrydevoidofbirdsandanimals.Theextinctionofanimalsandbirdswillmakeourworldandlifedull.
第二十一单元《不再紧张》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary和Question题。
一、本单元划分为三个部分：
1.Alargepercentageofpeoplesufferfromnervousness.(1)
2.Howtoovercomenervousness.(2---17)
A.Prepare(2—11)
B.Physicalandmentalcontrolofnervousness.(12---17)
3.Conclusion.(18)
二、回答问题Question：
1.Theauthorusesexamplesofattendingabigdinnerpartyandofmakingapresentationtoshowthepreparationforacommunicatingsituation.
2.Theauthorsuggeststhatweshouldbeginpreparingasfaraheadoftimeaspossible.
3.Becausevoiceandappearancegivetheaudiencemessagesandhavepositiveornegativeeffects.
4.Thephysicalandmentalcontrolofnervousnessisthatadjustingyourattitudesoyouhaveconfidence,andcontrolofyourselfandyouraudience.
5.Theauthor’sattitudeisthatwehavethepowerwithinustobecomeaforceful,persuasive,confidentcommunicator.Ifwemasterthesimpleprinciplessetoutinthearticle,wewillneverbenervousagain.
第二十二单元《未来方向》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary和Question题。
一、本单元划分为四个部分：
1.AIDSandUSAID(1—3)
2.USAIDistryingtoensurethefullparticipationoflivingaffectedwithHIV/AIDS.(4---5)
3.USAIDismakingeffortsinHIV/AIDSprevention.(6—11)
4.USAIDwillmeetthenewchallengesahead.(12)
二、回答问题Question：
1.Becausedevastatingimpactonthehealthandwell–beingoffamiliescommunitiesandnationsworldwide,itkillsmanypeopleandmillionofchildrenlosttheirparents.
2.BecausealthoughpeoplelivingwithHIV/AIDSareamongthemostsuccessfuladvocatesandcommunicatorsforprevention,toooftentheirvoicesarenotheardorheeded.GreaterinvolvementofpeoplelivingwithHIV/AIDSisessentialtocreatingthesupportivepolitical,legalandsocialenvironmentsneededtocontroltheepidemic.
3.The1994ParisAIDSSummitadoptedaresolutionpledginggreatersupportfornetworksofpeoplelivingwithHIV/AIDS.
4.Becausethevirusaffectspeoplewhoaremostactiveinthedevelopmentprocess.Decadesofprogressinhealthanddevelopmentarejeopardizedbythesocialandeconomicimpactoftheepidemic.Withoutcarefulplanning,developmentactivities,inturn,canpromotethespreadofHIV/AIDSbyencouragingmigrationandtheseparationofworkersfromtheirfamilies.
5.TheAgencywillpursueopportunitiesforreducingHIVtransmissionandmitigatingtheimpactoftheepidemiconsustainabledevelopmentthroughitsprogramsineducation,agriculture,andhumanresourceandmicroenterprisedevelopment.TheAgencywillcontinuetoadaptitsstrategiesandprogramsinordertobenefitfromlessonsfromthefieldandnewopportunitiesforbuildingeffectivepartnership.
第二十三单元《现在-未来》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary和Question题。
一、本单元划分为二个部分：
1.Theaccelerationoftechnologicalchange.(1—2)
2.Someofthenewtechnologiesinthefuture.(3---11)
A.Hydrogen-poweredcars.(3—5)
B.Superconductor.(6---8)
C.Artificialhumanparts.(9----11)
二、回答问题Question：
1.Becausethemostincredibleaccelerationofallisinthepaceoftechnologicalchange. Changeiscomingsofastthatsomeofthemostimportanttechnologiesofthe211stcenturymaynowbejustasketchonadrawingboardoraglimmerinthemindofagenius.
2.Accelerationisthephenomenonthatcausessomethingtotravelordevelopataneverincreasinglyrapidpace.Themostincredibleaccelerationisinthepaceofthetechnologicalchange.Theinventionofwheelsandsteamengine,thedevelopmentofcomputersandofthemeansofcommunicationcanshowthis.
3.Becauseautopollutionisoneoftheworstproblemsthattechnologyhavemade,theaffordablecarsthatdon’tpollutetheatmospherewillbeingreatdemand.
4.Thatmeansthefuturisticsoundingapplicationsscientistshaveroutinelytrumpetedwhentalkingaboutsuperconductivityaresuddenlywithreach.
5.Yes,becausedespitetheambitiousdaydreamsofsomecomputerscientists,nobodyknowswhenifever,itwillbepossibletomanufactureabionicmind.
第二十四单元《要求对核工厂进行调查》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary题。
第二十五单元《救救海狗和鲸鱼》本单元2002年考过，因此只需以词汇为主，重点在练习Vocabulary题。
第二十六单元《这是你生命中最美好的时光吗？》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary题。
第二十七单元《守夜》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary题。
第二十八单元《微生物世界》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary和Question题。
一、本单元划分为三个部分：
1．Microbesareatworkinourlives.(1—3)
2.Underwhatconditionsmicrobescanlive.(4---7)
3.Bacteria.(8—10)
二、回答问题Question：
1.Ishouldavoidexposingthingstotheair,andkeeptheminadry,coldandbrightplace.
2.Thebestwaytomakegooduseofmicrobesistoproduce“wonderdrugs”suchaspenicillinandstreptomycin.
3.Negativepointsofmicrobes:
1)ifyouforgettochangethewaterinavaseofflowers,itbeginstosmell;
2)Breadleftinapackagetoolonggetsmoldy;
3)Yourclothesmaymildewandyourfoodmayspoil.
Positivepoints:
1)Thecheeseandbreadthatweeathavebecomethefoodstheyarebecauseoftheworkofmicrobes;
2)Weoweoursauerkraut,pickles,vinegar,sourcreamandfavoritekindsofsourmilktomicrobes.
4.Becauselavaofvolcanoesisextremelyhot,dryandbrightandfreeofair.
5.Becausealuminumfoilisgoodforfoodtodry.
第二十九单元《外汇和外汇管制》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary题。
三十单元《信息的价值与代价》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary和Question题。
一、本单元划分为二个部分：
1．Thevalueofinformation.(1—4)
2.Thecostofinformation.(5---7)
3.Howtomakethevalueofinformationworthitscost.(8)
二、回答问题Question：
1.Thevalueofinformationisithasthepowertodeduceuncertainty.Informationessentiallyhastwovaluableapplications:problemsolvingandstrategicplanning.Itcanrevealpossiblesolutionstotheproblem.
2.Becauseinformationhasthepowertodeduceuncertainty.
3.Informationcanbeusedtoevaluatethemarketplacebysurveyingchangingtastesandneeds,monitoringbuyers’sintentionsandattitudesandassessingthecharacteristicsofthemarket.
4.Because1)informationisaboundlessresource;2)informationisusuallyfragmentedpublishedpiecemealinavarietyofsourcesandseldomfoundinpreciselytherequiredform;3)Thesedifficultiesarecompoundedbythetimeresearchcantake.
5.Becausethehardestquestioninbusinessresearchisdeterminingatwhatpointthebenefitsoftheinformationtheircost.Thepotentialprofitorlosstotheorganizationisanexcellentgaugeoftheinformation’simportanceaddressesarecurringproblemorcanbeappliedtoothersituationsinthefuture.
第三十一单元《打击计算机犯罪》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary和Question题。
一、本单元划分为五个部分：
1．Generalintroductiontocomputercrime.(1—2)
2.Thetypesofcomputercrimes.(3---5)
3.Theprotectionofhardwareandsoftware..(6—8)
4.Theauthorsuggestsusinguniformsoftwarebycomparinguniquewithuniformsoftware.(9-----11)
5.Concernfromeveryoneinthecompanyisneededofparamountimportance.(12)
二、回答问题Question：
1.Becauseitisdifficultytodetectawell-educatedtheft.
2.Becausecomputercriminalsarewell-educated,highlyintelligentandhavefertileimaginations,besideslucrativescheme,oftendifficulttodetect,involvesaccumulatingfractionsofpencefrominspanidualpayrollaccounts,withelectronictransferoftheaccumulatedamounttothecriminal’spayroll.
3.Simplehumanerrorisbyfarthelargestcausesofsystemfailure.
4.Systemscontrollingcashmanagement,financialoperations,andpersonnelandpayrollfunctionsofferthegreatestpotentialforinspanidualgain.
5.Thetopmanagementofthecompanyshouldberesponsibleforsettingcomputersecuritystandards.
第三十二单元《叛徒布莱克从其传记中获利》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary题。
第三十三单元《你把这也叫做经济良好？》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary题。
第三十四单元《在开罗的饭店枪手屠杀朝圣者》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary题。
第三十五单元《未来的国际贸易》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary和Question题。
一、本单元划分为四个部分：
1．Populationgrowth..(1—3)
2.Energysituation.(4---7)
3.Environmentalprotection.(8---10)
4.Unemployment.(12---14)
二、回答问题Question：
1.No,itisn’teasy.Becausetherearemanyimportantfactorstobeconsideredinthefutureinternationaltrade.
2.Yesthereis,becauseWesternEuropehasreceivedmillionsofworkersfromMediterraneancountries.
3.Thedevelopingcountries,becausetheproblemofpollutionisignoredforthesakeofdevelopment.
4.Hemustfromthedevelopedcountries,becausewhenhereferstothedevelopingcountries,heuses“their”,whilewhenhereferstothedevelopedcountries,heuses“our”.AscanbeseeninParas8.
5.Geothermalenergyisdifficulttoobtain,becauseitisusuallylocatedattoodeepalevelforcommercialexploitationandithasbarelybeenexploited.
第三十六单元《世界银行与国际货币基金组织》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary和Question题。
一、本单元划分为四个部分：
1．AimsoftheWorldBank.(1)
2.HowtheWorldBankworks.(2---5)
3.HowIMFworks.(6—9)
4.ThefunctionsoftheWorldBank.(10---16)
二、回答问题Question：
1.TheWorldBankwasformedtoprovidesoundlong-termcreditforreconstructionand development.TheIMFisconcernedwithshort-termcreditandthecooperativemanagementofforeignexchangerates.
2.TheWorldBanktrueimportanceis:1)thefactitcanfloatbondsandusetheproceedstomakeloans;2)itcaninsureloansinreturnforsmallpremium;3)privatepartiescanthenputupthemoney,knowingtheBank’screditissquarelybehindtheloan.
3.Becauseitwasimpossibletodefendthesystem.
4.IMFcontinuedtomakestableexchangeratesworkanddefendthesystem.
5.AfterRobertMcNamarabecametheheadoftheWorldBankinthe1960’s,theBankhas steppedupthescaleofitsactivitiessharply:theInternationalDevelopmentAgency,InternationalFinanceCorporationhavebeensetup.
第三十七单元《宇宙的特写照片》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary和Question题。
一、本单元划分为三个部分：
1．ThebeautyofphotosfromtheHubble..(1—3)
2.TheimportanceoftheHubble.(4---6)
3.ThehistoryoftheHubble.(7—12)
二、回答问题Question：
1．Becausetheylookremarkablelikegreattoweringthunderheadsbillowing,highintotheeveningskyastheycatchthelastraysofthesettingsun.Theyarealsososharp,sostartlinglythreedimensionalthatthemindwantstodomesticatethem,tobringthemdowntoearthtoimaginethemrisingonthehorizonorjustbeyondthewingsofanairliner.
2.Ithasofferedclose-uppicturesofdistantgalaxiesthataretentimesassharpasthoseproducedbyearthboundtelescopes-pictures.TheabilityoftheHubbletoseethesmallestfeaturesinsuchunprecedenteddetailhastoldastronomersanenormousamountabouthowstarsarebornandwhysomearecircledbyplanetsandothersarenot.
3.Twoastrophysicistswerementioned,theyareJohnBahcallandLymanSpitzer.
4.Becauseatechnicianhadassembledadevicethatguidedthemirrorgrindingprocesswithoneboltputonbackward.
5.BecausewhentheSovietlaunchedSputnikin1957,suddenlyjustaboutanythinginvolvingspacetookonurgencyandfromthenontheU.S.startedtocompetewithRussiainspace.
第三十八单元《污染是令人厌恶的》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary和Question题。
第三十九单元《更多的人口与更多的产品》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary题。
第四十单元《让餐桌上有食物》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary题。
第四十一单元《法官停止采访梅杰电视节目的播放》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary题。
第四十二单元《智能电梯带领日本经理走进现代化办公大楼》以词汇、课文段落以及课后回答问题为主，重点在练习Vocabulary题。
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