1、第一部分閱讀理解(75 分)Passage1CATV isa shortway ofsaying community antenna (天線)evi.But cableevi isthe term most people use. CableeviallowsviewerstoreceiveTV programstthey cannot pickup withtheirregularantennas.evisignals do notfollowthe curve(曲線) of the earth. Theytravelin straight linesin alldirections.Sig

2、nals froma TVsionmove toward thehorizon(水平線) andthen goo space.Ifyou live only a fewfroma sion,you maynotget anypicture at all.CATV began in 1948.People in plafarfrom TV sions sharedthe cost of puttingup highantennas.Acommunity antenna wasusuallyplacedonahill, amountain,orona high tower. Theantennap

3、ickedupTVsignalsand fedthemo a smalllocalsion.Fromthesion, thickwirescalledcables ranout tonearby homes.Eachusingthe cable paida monthlycharge.CATV worked well,andsoonnewuses were foundfor it.Localsions could feed programso emptychannelst were not inuse. People along the cablecould havelocal news, w

4、eatherreports,and farm andschool news atno extracharge.Today, cableevihas movedocities. It brings inextraprogramstcityviewers with regularantennas cannot see.It isalso usedanyclassroomsthroughoutthe country.1. From theparagraphwe knowt .A.most people use cableeviB.community antenna isanother namefor

5、 regular antennaC.a community antenna isused for cableeviD.regular antennas cannotpick up TV signals programs2. Of thefollowing, which is NOT the way TV signals travel?A.Inacurve.B.Inastraight line.C.Inalldirection.D.Towardthehorizon.3. CableTVising more and popular because .A.itisfreeofchargeB.itca

6、nprovidemore programsC.itprovides allTV users good picturesD.TVsets with regular antennas cso have agood receptionthroughCATV4. On the whole, this passage is about .A.how toput up high antennasB.a wayof picking up better TV programsC.howtouse the empty channels on your TV setD.thewayt TV signals are

7、sent5. Fromthepassage we can infert .A.TVhasbegun to beused foreducational puresB.there isno chargefor CATVC.cable TVcannot beusedountainous areasD.antennasfor cableTV are usually putuphecenter of acommunityPassage 2In earsttimes, men consideredlightningto beoneof the greatmysteries ofnature. Somean

8、cientpeopevedtlightning andtder werethe weaponsof thegods.In reality,lightning isa flowof electricity formedhighabove theearth. A single flash oflightning 1.6 kilometers longhasenoughelectricity to light onemillion light bulbs.The American scientist and sesman, Benjamin Frlin,wastheto showthe connec

9、tionbetn electricity and lightning in 1752. Inthe sameyear healsobuiltthelightning rod. This deviceprotectsbuildingsfromdamagebylightning.Modernscience hasdiscoveredtone strokeof lightingcontainsmoren 15 million volts. Aspark betna cloud andtheearthmay beas long as13 kilometers,and travelat a speedo

10、f30millionmeters persecond.Scientistsestimatet thereareabout 2000million flashesoflightningperyear.LightninghitstheEmpireSe BuildinginNewYork City30to48timesayear.he UnitedSes alongitkills aageofoneeveryday.The safestplacetobeincase of an electricalstorm is inaclosedcar.Outside,oneshould go to lowgr

11、oundand notgetundertrees.Also, one shouldstay out of waterand away frommetalfen.Insidea house,people should avoidopen doorwaysandwindowsandnot touchwires ormetal things.Withlightning,it isbetter to be safen sorry!6. Lightning isreally.A.weaponB.electricityC.lightD.mystery7. People oncethought lightn

12、ing camefrom .A.scientistsB.groundC.lightning rodD.gods8. One flash oflightning can produce enoughelectricity for bulbs.A.10,000B.1,000C.1,000,000D.1009. Benjamin Frlin .A.made thelightning rodB.invented electricityC.built the Empire Se BuildingD.preventedLightning from hitting cars10. is the best p

13、lace to be duringan electricalstorm.A.SwimmingpoolB.a highgroundC.UnderatreeD.AcarPassage3Becauseofthe energy crisis, scientistshe oil-consumingnationshaveeincreasinglyerestedhepotential(潛在的) of solarenergy.Some experts estimatetthe present supply of fossil (化石)fuel willnot last untilof the twentiet

14、h century. Theproblemt solar energy researchers face is howto harness (利用)the sunsenergy effectively and inexpensively. Oneof the mostpopular methodscurrentlybeing tested usesrooftopsolar collectorsand undergroundstorage. An advantageof aproperly workingsystem of thistype ist it will notcreateany en

15、vironmentalpollution. Another advantageof using solarenergyistthe costof thefuel-the suns rays-is zero. When a solarheatingsystem isworkingatum (最大的) efficiency, it can provide upto 80percentof wer heating needs.11.Themaopic of this passage is .A.theshortage offossil fuelB.theproblemst energy resear

16、chers faceC.anenvironmentalpollution problemD.aninexpensive energy source12.Onepopular solar heating system makesuse of.A.roof collectors and underground storageB.fossil fuel converC.undergrounlD.water collection and evaporation13.The cost of using thesunsrays forheatingis .A.about thesame as thecos

17、tof fossilfuelsB.severaldred dollarsperyearC.negligiblecompared withother energy sourD.determinedby the severity of the wer14.Which ofthe followingdescribes an advantageof using solarenergy?A.There islittle ornoenvironmental pollution.B.A largepercentageoffuel costs can be saved.C.Fossil fuels wille

18、moreplentiful.D.The oil-consumingnationswillnove to import oil.15.According to someexperts,thesupply of fossil fuel will notlast.A.one more centuryB.an indeterminabletimeC.untilofthis centuryD.indefiniy第二部分 完成句子 (25 分)根據(jù)短文內(nèi)容完成句子，每個空格只能填一個單詞。有的單詞第一個字母已經(jīng)給出，請將其余字母補全。Not long ago, an airplanewas flyiner

19、 New Zealand. There was aevicamera crew onboard. Suddenly, outhe nightsky, abright sphere (球體) cameo view. Everyone on board sawit andeveryone though,UFO-UnidentifiedFlying Object. The cameracrew wentoaction andstarted filming.tkpeopleall overthe worldsawthe film ofthis mysteriouslightontheireviscre

20、ens.Whatwas it? Was it a spahipfullofvisitorsfromanotherplanet? The captain of the aeroplane andthe filmcrewbeved itwas. Other observers hadmanydifferent explanations.Some said itwas Venus (). Otherssaidit was jusrickof light.An air trafficcontrolleralsosaw it onhis radarscreen. Hethoughtt aflock of

21、birdswas causingdots onhisradar screenwhen the UFOappeared.Most astronomersnow bevet what these peoplesawwas almostcertainly theplanet Venus.Att time of yearitisvery brightand easy tosee. And fromamoving aeroplane itcanappear to bemoving fast.So far thereisno prooft UFOsorspahips fromothlanetsdo exi

22、st. Theseyears investigatorsof UFOshaveinvestigated thousands of sighting-or occas when peoplesaid theysaw a UFO. Ninety percent ofthese turned out to havea simpleexplanation.However, its good ideato keepan openmind. Scientistsin somecountries are trying topersuadetheirernments to helpthem studyUFOs

23、. And they are planning tocooperateer-nationallyon reportingand investigatingsightings of UFOs.After all, itisquitesiblet thereis life outthere inthe universe.Andif something isalive, itis quitesibletit will cometovisit us.16.Thecaptain andthe camera crew bevedt UFO was a vspahipfrom anothlanet.17.M

24、anyo bevedt the UFOwas Venus.18.So far there isno prooft UFOs aresp fromouter space.19.Some scientistsheworldare planningto dosome r onUFOs.20. P lifehe universemaytry to makea visittous.第三部分 閱讀理解(80 分)Passage 1In recent years,scientificand technologicaldevelopmentshavedrastically changed human life

25、 onour planet,as well asour viewsboth of ourselves as individualsin society and of the universe asa whole.Maybeone ofthe mostprofound developmentsof thelastdecade isthediscoveryofbinant DNA technology,whichallowsscientiststoroducegenetic(遺傳學的) material(enes)fromoneanismo another.Initssimplestform,th

26、etechnologyrequires theisolation ofa pieceof DNA,eitherdirectly from theDNA of theanismunderstudy,or artifillysynthesized from anDNA. This piece ofDNA is then ligated (結(jié)扎) to a fragment ofbacterial DNA whichhas thecapacity to replicate () itselfindependently. Thebinantmolecule thus produced can bero

27、ducedo the commonestinal (的) bacterium Escherishchia coli, whichcan be grown invery largeamounts in synthetic media. Undroperconditions, the foreign genewill not onlyreplicatehebacteria,but also express itself, through the pros of transcriptionandtranslation, to give rise to large amountsof the spec

28、ific proteincoded by the foreign gene.The technology has already been sucsfullyappd to the productionof several therutically (療法的) importantbiomolecules, such as,growth hormones,erferon, insulin.Many other important applications are underdetailed investigation inlaboratories throughout the world.21.

29、binant DNA technology consists primarily of .A.producing several theruticallyimportant biomoleculesB.giving rise to large amounts ofproteinC.roducing genetic material fromoneanismo anotherD.using a viral enzyme calledreverse transcriptase22.binant DNA technology hasbeen usedhe production ofallof the

30、 following biomoleculesexcept .A.growth hormonesB.EscherishchiacoliC.erferonD.insulin23.Which of thefollowingis not true?A.The foreigngene willreplicatehebacteria, but it willnotexpress itself throughtranscription andtranslation.B.The bacterium Escherishchia colican begrown in large amountsin synthe

31、tic media.C. Research continues in an effortto find other uses for thistechnology.D.binant DNA technology is arecent development.24.Expresof a gene in Escherishchia coli requires .A.the viralenzyme reverse transcriptaseB.the proses of transcription and translationC.productionof insulin and other bio

32、moleculesD.t the bacteria be grown in a synthetic media25.Thetermbinant is used because .A.byligation, abinantmolecule isproduced, which has thecapacityof replicationB. thetechnique requires thecombinationof several typesoftechnologyC.by ligation,abinantprotein isproduced, part ofwhoseaminoacids com

33、efromdifferentanismD.Escherishchiacoliis abinantanismPassage 2Watch a baby betn six andnine monthsold, and you willobservethe basic conceptsof geometrybeing learned. Once the babyhasmastered the ideat space isthree - dimenal,it reaches outand begins grasvarious kindsofobjects. It isthen, fromperhaps

34、 nine to fifteenmonths,ttheconcepts ofsets andnumbers are formed. Sofar, so good.Butnow ominous(不祥的)development takes place.The nerve fibershe braininsulate (使隔離)themselves in sucha wayt the baby beginstohear soundsveryprecisely. Soon itpicksup language, and itisthen broughtodirect communicationwidu

35、lts. From this poon,it isusually downhill all thewayfor mathematics, becausethechild nowes exed to all the nonsense words and befsofthecommunityo whichis been so unfortunate as tohave beenborn. Naturehavingdone very wellby the child nowes exedto all thenonsensewords and befs of to this po, havingper

36、mitted itthe luxuryof thinkingfor itself foreighteen months,nowabandonsit to thearbitrary conventions and befsof society.Buleastthe childknows something ofgeometryandnumbers,anditwill always retain some memory of theearly halcyon(平靜的)daysnomatter what vicissitudes (變化) it maysuffer lateron. Themainr

37、eservoirof mathematical talent in any society is thussessed bychildrenwho are about two years old. Children who have just learnedto speakfluently.26.Whatdoes the passage mainly discuss?A.Theimpactof language on mathematics.B.Childrensability to learn languages.C.How basicconcepts of physics are lear

38、ned.D.Math-learning strategies for babies.27.Accordingto the passage, which of following activities wouldteacha babygeometry?A.Pickingupa wooden block.B.Recognizingthe number 2.C.Utteringanonsense word.D.Lookingatdistant objects.28.Accordingtotheauthor, at what agedoesachild probablybegolearn abouts

39、etsand numbers?A.Sixmonths.B.Ninemonths.C.Fifteenmonths.D.Eighteenmonths.29.The useof thewordominous showsttheauthor bevethechilds .A.linguistic future isthreatenedB.nerves willdeteriorateC.hearing willsufferD.mathematicalability all decline30.The passage support which of the followings?A.The langua

40、ge concepts used in early educationerfere withmathematical reasoning.B.It is hopeless to try to teach children mathematics after theageof two.C.Language teaching should incorporate some mathematical formulas.D.Preschool education should stress societys befs andconventions第四部分 概括大意 (20 分)給下面一篇文章的每一段概

41、括大意。每一段的用一個或幾個單詞表示，空出的詞已給出了第一個字母，請把其余字母補全。31. The Solar EThe sun is the source ofmostofthe heat knownto us. As adirect source of heat, thesunmaains life uponthis planet, 150000 000 kilometersdistant.Itisalso an indirectsource of heat.Since the earth isderivedfromthe sun, it is the lattert wemust tra

42、ome ofthe earthsernal heatt revealsitselfthrough volcanoes, geysers (噴泉),and hot springs.32. Insects and SurfaceTAn insect isnotafraidof gravity,but it is in deadlyfear ofanother forceofnature.Thisforceis called surface ten(張力).A man comingoutof abathcarrieswith him a film ofwater aboutonefiftiethof

43、 an inchhickness. This weights abouta pound. Awetmousehas to carryitsown weight in water.A wetfly has toliftmanytimes its ownweight, and,aseveryoneknows,afly oncewetted bywater or anyotherliquidisiy seriousition. Aninsect goingfor adrinkisin as greatdangeras amanleaninerthe edgeofacliff in search of

44、food. If itoncefallsothe gripofthesurface tenofthe water -tis tosay,getswetitislikely to remain so until itdrowns. A few insectscontrive tobe unwettable; the majority keepaway from their drinkby means of long procis (喙).33.T of Boiling PoofLiquidsWhenthe temperature ofaliquidis raised enough, the li

45、quid boils.Thismeanstbubblesofvapor,containing millionsofmoleculesformbelow thesurface.Inorderfor such bubbles tobeproduced,theprereofthe vaporinsidethem must be equaltothe prereof theairupon the surface ofthe liquid. If theairprere isgreater,thebubble will collapse.The boiling poofa liquid,then, is

46、thetemperature at whichthe vapor prereoftheliquidis equaltothe atmospheric prereupon the liquidatthesurface.34. EandContractionSolidsalsoexpand with increaseemperature and contractwhencooled.Butthey do not behavequiteso uniformly (相同地)hisrespeliquids and gases do, particularlyhe case of widevariatio

47、ns,emperature. Most solids expend or contract by adefinite amount for every degree of thetemperaturet risesorfalls. Theamount by which on substanceexpands andcontractsforone degreeis not usually the sameast for adifferentsubstance.Thus, for agivenriseemperature, apiece ofbrassexpandsittlemorena piec

48、eofcopper andmuorenapiece ofsteel ofthesamesize.35. A ofElectricTrainsElectrictrains have many advantagesoverthose drawn byengines.There is no smoke to soilthepassengers clothes and thecushionshe train.Because theycarry no heavy loads of coaland water, these trainscan start andstop with less waste o

49、fer.In a sion they aresilent: theresnoto produce noise todeafen the passengers.第五部分閱讀理解 (120 分)Passage1heatmosphere, carbon dioxide actsrather like aaymirrorthe glasshe roof agreen house which allows the sunsrays to enter but prevents theheat from esca.According to aweather expertsprediction, theatm

50、osphere will be7oCwarmerheyear 2050n it is today,if man continues toburnfuelsatthepresent rate.Ifthis warming up tookplace, theicecshepoles would bego melt, thus raisingsea levelseveralmetresandseverely floodingcoastal cities. Also,theincreasein atmospheric temperature would lead to great changes in

51、the climate of the northern hemisphere,sibly resultingin analteration of the earths chief food-growing zones.he past, concern about a man- made warming of theearthhasconcentratedon the Arctic becausethe Antarcticis muchcolderandhas amuchthicker iheet. Butthe weatherexpertsare nowpayingmoreattention

52、to West Antarctic,whiay beaffectedbyonly afewdegrees of warming: in otherwords,by awarmingon thescaletwillsiblytake placehenext fiftyyearsfromthe burningof fuels.Salitcturesshowt large areasofAntarctic ice arealreadydisappearing. Theevidenceavailable suggestst a warming has takenplace. This fitsthet

53、heoryt carbon Dioxide warms the earth.However, most ofthefuel isburnthe northern hemisphere, wheretemperatures seemtobe falling.Scientists conclude, therefore,tup tonownatural influenonthe weather have exceeded thosecausedbyman.The question is.Which natural causehas the mosteffectontheweather?Onesib

54、ilityis the variabehavior of thesun.Astronomers atoneresearch sion havestudiedthe hot spotsandcold spots(t is, therelativelyless hot spots) onthesun. As the sunroes, every27.5 days,it presents hotterorcolder fatotheearth, anddifferentaspects to differentparts of the earth.This seems to have a consid

55、erable affect onthe distribution oftheearthsatmospheric prere, and consequentlyon wind circulation.Thesun isalso variable overa longterm: itsheat output goes upanddown incycles, the latesttrendbeing downward.Scientists are now findingmutualrelations betn ms of solar -weathereractionsand the actual c

56、limate overmanythousands ofyears, includingthelast Ice Age. The problemist the msarepredictingtthe world should be enteringa new Ice Age anditis not.ayof solving this theoreticaldifficulty is toame a defaultofthousands of yeas while thesolar effectse the inertia(慣性) of the earths climate. If this is

57、right,thewarming effect of carbondioxide might thus be serving asauseful counter - balance tothe suns diminishing heat.36. It can concludedt aconcentration ofcarbon dioxideheatmosphere would .A.preventthe sunsraysfrom reaching theearthrfaceB.mean awarming uphe ArcticC.accountfreatchangeshe climatehe

58、 northernhemisphereD.raise thetemperature of the earthrface37.Thearticlewas written to explain .A.thegreenhouse effectB.thesolareffects on the earthC.themsof solar-weatherractionsD.thecausesaffecting weather38.Although thefuel consumptionisgreaterhe northernhemisphere, temperatures there seemtobe fa

59、lling.This is .A. mainly because the levels ofcarbon dioxideare risingB.sibly because the ice capshe polesare meltingC. exclusively due to the effectof the inertia ofthe earthsclimateD.partly due to variationshe outputof solarenergy39.On the basis of their ms,scientistsare ofthe opiniont.A.the clima

60、te of the worldshouldbeing coolerB.it will take thousands ofyearsfortheinertia of the earthsclimate to take effectC.the man-made warming effect helpstoincrease the solar effectsD.the new Ice Agewillbe delayedbythe greenhouse effect40.If the amptionaboutthe delayofa new Ice Age is correct,.A.the best