閱讀理解分類練習科技類

閱讀理解分類練習科技類四、科技類(1)WouldyoucarryaroundanelectronicID,notinyourpocket,butinyourbody?Doesthisideascareyouormakeyoufeelsafe?ThefirstcomputerIDchip(芯片)thatcouldbeplantedunderaperson’sskinmightbemarketedverysoon.DevelopedbyAppliedDigital,anAmericantechnologycompanybasedinFlorida,thedevice(發(fā)明物)couldmeettheneedforpublicsecurity(安全)aftertheSeptember11attacks.Forairports,nuclearpowerplants(核電站)andotherhighsecurityfacilities(設(shè)備),theimmediateeffectsareobvious.ThetechnologycouldhelpputanendtofalseIDcards,becauseitwouldbedifficulttoremoveandcopyatinycomputerchip.Thechipisassmallasagrainofrice.Thetechnologywouldalsoallowsatellitestotrack(追蹤)aperson’severymovementandstoremedicalrecords.Theseusesarealreadyattractinginterestfortaskslikefightingagainstkidnappings(綁架),orhelpingwithmedicaloperations.Butsomepeopleareafraidofthelossofprivacy(隱私).“Youalwayshavetothinkaboutwhatthedevicecouldbeusedfortomorrow,”saidLeeTien,aseniorprivacylawyerintheUnitedStates.“Atfirstadeviceisusedforapplicationsweallagreearegood,butthenitslowlystartsbeing

usedformorethanitwasintended,”hesaid.However,AppliedDigitalsaysitwillsoonapplyfor(申請)governmentpermissionforthedevice.Itsaysthatthefirstpeopletousethechipwillbevolunteers.Gettingtheimplant(需移植的芯片)wouldgosomethinglikethis:ApersonorcompanybuysthechipfromAppliedDigitalforaboutUS$200.Andthecompanyencodes(編碼)itwiththedesiredinformation.Thecustomerthentakesthechiptotheirdoctor,whocanplantitwithalargeneedle.Thedevicehasnopowersupply,ratheritisactivated(使活動,使運行)byascanner(掃描儀)

runningacrosstheskinaboveit.Withoutascanner,thechipcannotberead.Evenwiththeprivacyconcern,somearealreadyeagertousetheproduct.JellJacobsfromFloridahopestobecomethefirstbuyerofthechiptostorehismedicalrecords.Sufferingfromaseriousillness,hewantstomakesuredoctorscanhelphimquickly.EightLatinAmericancompanieshavealsoshowninterestsinthedevice.Itcouldhelptofindanytouristswhoarekidnapped.1.Thebesttitleforthepassageis_______.A.WhyIstheNewIDNecessary

B.GettingaNewKindofIDUnderYourSkinC.AnAdvertisementforChips

D.WheretoBuytheChip2.Whichofthefollowingistrueaccordingtothetext?A.Insomeairportsandfactoriessuchdeviceisalreadybeingused.

B.Theinformationonthechipcanbereadwhenithasitspowersupply.C.ThetechnologycouldhelpputanendtofalseIDcards.D.ThefirstcomputerIDchiphasalreadycomeintothemarket.3.WhatistheadvantagewiththeelectronicIDaccordingtothepassage?A.Itcanstorepeople’smedicalrecordsandhelpwithmedicaloperations.

B.Withthispeoplewillhavenofearoflosingprivacy.C.It’scheaptobuyandeasytoget.

D.ItisdevelopedbyAppliedDigitalinFlorida.4.WhatcanwelearnaboutJeffJacobs?A.He’saworkerinAppliedDigital,acompanyinFlorida.

B.He’sadoctorwhohelpsplanttilechipsonpeople.C.Hefearsifheusesthechiphewillloseprivacy.

D.He’ssufferingfromaseriousillnessandwantstobuythechip.【答案解析】本文介紹了新的個人身份證—電子身份證的特點、功能及人們對此的態(tài)度。1.B。主旨題。

根據(jù)

WouldyoucarryaroundanelectronicID,notinyourpocket,butinyourbody?…ThefirstcomputerIDchipthatcouldbeplantedunderaperson’sskinmightbemarketedverysoon

及以后的內(nèi)容可知本文講述的是安裝在皮膚上的電子身份證與傳統(tǒng)身份證比較所顯示出來的新特點，故選

B。2.C。細節(jié)題。閱讀全文可知

A、B、D

與原文不相符，再根據(jù)

ThetechnologycouldhelpputanendtofalseIDcards

可知

C

為正確答案。3.A。細節(jié)題。根據(jù)第

7

段

Theseusesarealreadyattractinginterestfortaskslikefightingagainstkidnappings,orhelpingwithmedicaloperations

及倒數(shù)第2段

…h(huán)opestobecomethefirstbuyerofthechiptostorehismedicalrecords

可知這種電子身份證有助于醫(yī)學手術(shù)及儲存醫(yī)學紀錄的作用，故選

A。4.D。推斷題。根據(jù)

Sufferingfromaseriousillness,hewantstomakesuredoctorscanhelphimquickly

及

JellJacobs

fromFloridahopestobecomesthefirstbuyerofthechip…

可知答案

D

說是這兩句話的總結(jié)。(2)Overthepast10years,technologiesthathavecombinedcomputerswithtelephoneshavedeveloped.TechnologiessuchasPCfaxprogramsandLANfaxservers(局域網(wǎng)傳真服務器)havebeenusedtoimprovefaxcommunications.Thelatestcomputer-basedtechnologiesarenewmechanisms(機制)whichuseIP(InternetProtocol,

因特網(wǎng)協(xié)議)tosendfaxes,thatis,IPfax.Traditionalfaxhasafairlysimpleusagemodel.First,theuser

inserts

adocumentintothefaxmachine,entersthedestinationfaxnumberandpressesthestartbuttononthemachine.Thesendingmachinedialsthereceivingfaxmachine.Ifitconnects,thesendingmachinescansthedocumentsandsendsitoverthepublicswitchedtelephonenetwork(PSTN,

公共電話交換網(wǎng))tothereceivingmachine.Atthesametime,thereceivingmachinereceivesthedocumentandthenprintsit.InIPfaxsystemtherearetwobasictransmissionmodes:store-and-forwardmodeandreal-timemode.Store-and-forwardmodehasbeenwidelyused.Inthismode,theentiredocumentissenttoanetwork-basedserverthatstoresitandthensendsittothedestination.Real-timeIPfaxingissimilartotraditionalfax.Real-timemodeallowstwofaxmachinestodirectlycommunicatethroughaproperstandard.IPfaxenablesafaxdocumenttobesentfromonepersontoanother.Afaxmachineoracomputercanbeusedtosendorreceivethefax.IPfaxalsoallowse-mailtobeusedtoreceivefaxes.Thiswouldenableuserstoreceivefaxesanywhere,anytimewithaninternetfaxaddress.1.Thepassagedealsmainlywith_______.A.PCfax

B.IPfax

C.informationtechnology

D.newmachines2.Intraditionalfax,_______canbeused.A.evencomputers

B.LANfaxservers

C.e-mail

D.onlyfaxmachines3.IPfaxcanuseallofthefollowingtosendandreceiveafaxexcept_______.A.afaxmachine

B.areceivingmachine

C.acomputer

D.e-mail4.Inreal-timeIPfaxmode_______.A.twofaxmachinescommunicatedirectly

B.anetwork-basedserverisusedC.userscanreceivefaxesanywhere

D.thePSTNhastobeused5.Inparagraph2,theword“inserts”canbeplacedby_______.A.prints

B.presses

C.puts

D.uses【答案解析】本文介紹了傳統(tǒng)的傳真和科技的發(fā)展帶來了現(xiàn)代傳真的新特點。1.B。主旨題。根據(jù)

Thelatestcomputer-basedtechnologiesarenewmechanismswhichuseIPtosendfaxes,thatis,

IPfax

以及第

3段中的

In

IPfax

systemtherearetwobasictransmissionmodes…和第

4

段中的

IPfax

enablesafaxdocumentstobesentfromonepersontoanother

及后述內(nèi)容都是展開講述

IPfax

的有關(guān)內(nèi)容，由此可見

B

為正確答案。2.D。細節(jié)題。根據(jù)第

2

段

Traditionalfax

hasafairlysimpleusagemodel.First,theuserinsertsadocumentintothe

faxmachine,…Thesendingmachinedialsthereceiving

faxmachine可知在傳統(tǒng)的傳真中，僅僅使用普通的傳真機，而

A、B、C

是在現(xiàn)代的傳真時才使用，故選

D。3.B。細節(jié)題。

根據(jù)

Atthesametime,thereceivingmachinereceivesthedocument

andthenprintsit

可知

areceivingmachine僅僅用來接收的，據(jù)此選答案

B。4.A。細節(jié)題。根據(jù)

Real-timemodeallowstwofaxmachinestodirectlycommunicatethroughsomestandard

可知在真實模式下，兩臺傳真機可以直接交流，據(jù)此選

A。5.C。詞義猜測題。根據(jù)

First,theuser

inserts

adocumentintothefaxmachine

可知使用者不是把文件打印(A)、擠壓(B)、使用(D)而是放入到傳真機里，由此選答案

C。(3)Flyingoveradesertareainanairplane,twoscientistslookeddownwithtrainedeyesattreesandbushes.Afteranhour’sflightoneofthescientistswroteinhisbook,“Lookhereforprobablemetal.”Scientistsinanotherairplane,flyingoveramountainarea,sentamessagetootherscientistsontheground,“Goldpossible.”Walkingacrosshillyground,fourscientistsreported,“Thisgroundshouldbesearchedformetal.”Fromanairplaneoverahillywastelandascientistsentbackbyradiooneword:“Uranium.”NoneofthescientistshadX-rayeyes:theyhadnomagicpoweroflookingdownbelowtheearth’ssurface.Theyweremerelyputtingtouseoneofthenewestmethodsoflocatingmineralsintheground…treesandplantsassignsthatcertainmineralsmayliebeneaththegroundonwhichthetreesandplantsaregrowing.Thisnewestmethodofsearchingformineralsisbasedonthefactthatmineralsdeepintheearthmayaffectthekindofbushesandtreesthatgrowinthesurface.AtWatsonBarGreek,abrook(小溪)sixthousandfeethighinthemountainsofBritishColumbia,Canada,amineralsearchgroupgatheredbagsoftreeseeds.Boxeswerefilledwithsmallbranchesfromthetrees.Rootsweredugandputintoboxes.Eachbagandboxwascarefullymarked.Inascientificlaboratorythepartsoftheforesttreeswereburnedtoashesandtested.Eachsmallpartwasexaminedtolearnwhetherthereweremineralsinit.Studyoftheroots,branches,andseedsshowednosilver.Butthereweresmallamountsofgoldintherootsandalittlelessgoldinthebranchesandseeds.Theseedsgrowingnearesttothetreetrunkshadmoregoldthanthosegrowingontheendsofthebranches.1.Scientistswereflyingoveradesertorahillywastelandoramountainareainordertosearchfor_______intheground.A.gold

B.silver

C.metals

D.minerals2.Thestudyoftrees,branchesandrootsshowsthat_______.A.therewerelargeramountsofgoldinthebranchesthanintheseedsB.thereweresmalleramountsofgoldintherootsthaninthebranchesC.therewerelessamountsofgoldintheseedsgrowingontheendsofbranchesthanseedsgrowingnearesttothetreetrunksD.therewasmoregoldinthebranchesthanintheroots3.Whichisthebesttitlesuggestedbelow?A.ScientistsSearchingforMetalswithSpecialPower

B.NewMethodsofSearchingforMineralsC.GoldCouldBeFoundbyTreesandPlants

D.ANewMethodofSearchingforMinerals—UsingTreesandPlants4.WhichofthefollowingisNOTmentionedaspartofatreethatcanhelpfindminerals?A.Leaves.

B.Roots.

C.Branches.

D.Seeds.5.Thescientistsweresearchingformineralsbyusing_______.A.X-ray

B.magicpower

C.aspecialinstrument

D.trainedeyes【答案與解釋】探測礦產(chǎn)資源歷來是苦差事?？茖W家們通過研究，獨劈蹊徑，采用一種新的快捷有效的方法—根據(jù)地面植物情況來判定地下的礦產(chǎn)資源。1.D。語義理解題。根據(jù)文章第1段的內(nèi)容以及一般常識可推知答案。2.C。細節(jié)題。從文中最后一句Theseedsgrowingnearesttothetreetrunkshadmoregoldthanthosegrowingontheendsofthebranches

可知。3.D。主旨題。通讀全文可知答案為D。4.A。細節(jié)題。從最后一段可知通過研究

roots,branches

和

seeds可判定地下是否有礦產(chǎn)，而

leaves

在文章卻沒有提到。5.D。細節(jié)題。從文章第1段的第

1

句和第

2

段可找到答案。(4)Newfindingssuggestthatbrainycardgamessuchascontractbridgemaytemporarily(臨時地)raiseproductionofakeybloodcellincludinginfightingoffillness.After90minutesofplay,bridgeplayershadincreasedlevelsofimmune(免疫)cells,accordingtotheresearchreportedlastweek.Aresearcher,Diamond,studiedbridgeplayersfromawomen’sbridgeclub.Shechosebridgeplayersbecausethegameincludesskillsstimulating(刺激)apartofthebraincalledthedorsolateralcortex.Earlieranimalresearchsuggeststhatthispartofthebrainmayplayaroleintheimmunesystem.Thefindingsarebasedonbloodsamplesdrawnfrom12womenplayers.TheirbloodsamplesshowedariseinlevelsofwhitebloodcellscalledTcellsaftertheyplayedbridgefor90minutes.Tcellsareproducedbythethymusgland(胸腺)andusedbytheimmunesystemagainstdiseases.TheTcellcountjumpedsignificantlyineightofthebridgeplayers,andslightlyintheotherfour.Thefindingscontributetothefieldofneuroimmunology(神經(jīng)免疫學),whosenamereflectsthefactthatthenervoussystemandtheimmunesystemarenotconsideredseparateandisolated(獨立的)systems.Whatisn’tcleariswhetherthehelptotheimmunesystemfromanactivitylikecontractbridgeislastingortemporary.ItisalsonotclearwhethertheincreaseinTcellscouldfinallybetargetedagainstspecialillnesses.1.Playingbridgecanhelponetofightoffdiseasesbecauseitcan_______.A.raiseproductionofakeybloodcell

B.makepeoplejoyfulC.aiddigestion

D.makebreakawayfromthebadhabits2.Diamondchosetostudybridgeplayersfortheresearchbecause_______.A.theplayersaregoodfriendsofhers

B.shelovesplayingbridgeC.thisgamestimulatesapartofthebrainthathassomethingtodowithimmunesystemD.sheisaclevermanager,whooperatesherbridgeclubwell3.ATcellis_______cell.A.abrain

B.awhiteblood

C.aredblood

D.akindofdangerousblood4.Whichofthefollowingistrueaccordingtothisarticle?A.Theimmunesystemandthebrainsystemusedtobeconsideredseparateandisolatedsystems.B.Thehelptotheimmunesystemthatisbroughtaboutbyplayingbridgecanlastforalongtime.C.Cortexisakindofbloodcell.

D.Thenewfindingsareimpossible.【答案與解釋】Diamond

通過對打橋牌的12名女士的血液抽樣調(diào)查研究，發(fā)現(xiàn)神經(jīng)系統(tǒng)與免疫系統(tǒng)不是分別獨立的。人們從事智力游戲時，白細胞大量增加，對免疫系統(tǒng)有促進作用。1.A。主旨題。從文章的第

1

句話中可知答案。2.C。細節(jié)題。從第

2

段第

2

句話中可知答案。3.B。細節(jié)題。從第

3

段第

2

句話中可知答案。4.A。判斷題。從第

4

段第

2

句中可找到正確答案。(5)Everylivingcell(細胞)containsgenes(基因).Theyaretoosmalltobeseenunderamicroscope,buttheyarevitallyimportant.Eachsetofgenesinthebodycontainsalltheinstructionsneededtomakeahumanbeing.Somegenesdeterminehaircolor.Somedeterminetheshapeofanose.Somegeneshelpdetermineyourheightandevenyourweight.GenesaremadeofachemicalcalledDNA—thelettersstandfordeoxyribonucleicacid.Intheearly1950’stwoscientists,FrancisCrickandJamesWatson,figuredouthowthepartsofDNAfittogether.Oncescientistsunderstoodthisstructure,itbecamepossibletotakepiecesofDNAapartandputthemtogetherinnewways.Newkindsofgenescouldbemadeinthismanner.Scientistshavestudiedthegenesofmanyplantsandanimals.Theyhaveworkedoutwhichgenesaffectthecolorofatomatoandthethicknessofitsskin.Workingoutwhichgenesdeterminewhichfeaturesiscalledgeneticmapping,scientistshavebeguntheHumanGenomeProject,anambitiousefforttomapallthegenesinthehumanbody.Somegenesmaybedefective(有缺陷的).Forexample,somethingmightbewrongwiththegenethatmakesbloodclot(凝聚).Anindividualbornwiththisdefectivegenecouldsufferserioushemorrhages(出血)orevenbleedtodeathbecausehisorherbloodfailstoclot.Scientistsaretryingtotreatthedefectivegenes,andhavemadegreatachievements.Ifscientistscouldknowachildhasanydefectivegenesbeforehand,theymightevendiscoverhowtotreatthesegenesbeforethechildisborn.1.WhatwastheachievementoffrancisCrickandJamesWatson?A.Theydiscoveredwhypeoplehavedifferenthaircolors.

B.Theylearnedthatsomepeoplebleedforlongperiodsoftime.C.Theylookedathumancellsunderthemicroscope.

D.TheyworkedoutthestructureofDNA.2.Whatisthemainideaofthispassage?A.Defectivegenescanneverberepaired.

B.Genesaretoosmalltobeseenthroughamicroscope.C.Geneshelpscientistsunderstandhowlivingthingsdeveloptheircharacteristics.D.TheHumanGenomeProjectmayexplaintheroleofeverygeneinthebody.3.Whichofthefollowingstatementsisafact?A.Geneshelpdetermineyourheightandweight.

B.Geneticengineeringisthemostimportantscientificdiscoveryofthelast25years.C.Itisdangeroustomakechangesingenes.

D.Supermarketsshouldnotsellgeneticallyengineeredfood.【答案與解析】

基因是由叫做DNA的化學物質(zhì)構(gòu)成的?？茖W家們已經(jīng)開始繪制人體基因圖了。1.D。細節(jié)題。命題依據(jù)是第

2

段第

2

句話Intheearly1950’stwoscientists,FrancisCrickandJamesWatson,figuredouthowthepartsofDNAfittogether。2.C。主旨題。從文章內(nèi)容可知，不同的基因有不同的功能。所以，本文主旨應該是C項。3.A。判斷題。只有A項內(nèi)容文章涉及了，B、C、D三項內(nèi)容文章沒有體現(xiàn)。(6)Windisthegreatmakerofwaves.Thereareexceptions,suchasthetidal(潮汐的)wavessometimesproducedbyearthquakesunderthesea.Butthewavesmostofusknowareproducedbywindsblowingoverthesea.Nowbeforeconstructinganimaginarylifehistoryofatypicalwave,weneedtoknowcertainphysicalthingsaboutit.Awavehasheight,fromtrough(lowpoint)tocrest(highPoint).Ithaslength—thedistancefromthiscresttothatofthefollowingwave.Theperiodofthewavemeansthetimeittakesforsucceedingcreststopassafixedpoint.Noneofthesethingsstaysthesame—foralldependuponthewind,uponthedepthofthewaterandmanyothermatters.Thewaterthatmakesupawavedoesnotadvancewithitacrossthesea.Eachdropofwaterturnsaroundinalittlecirclewiththepassingofthewave,butreturnsverynearlytoitsoriginalposition.Anditisfortunatethatthisisso.Forifthehugemassesofwaterthatmakeupawaveactuallymovedacrossthesea,sailingwouldbeimpossible.Ifwewanttofindthespeedofawave,wemayusethefollowingway:Speed=wavelength×frequencyHere,wavelengthisthedistancebetweentwohighpoints(crests),frequencymeansthenumberofcyclespersecond.1.Whatcauseswaves?A.Earthquakesandnothingelse.

B.Onlywind.

C.Windcausesmostwaves.

D.Windcausessomewaves.2.Whichofthefollowingistrueaccordingtothepassage?A.Thewaterofawavemovesawayacrossthesea.

B.Thewaterofawaveremainsalmostatthesameplace.C.Thewaterofawavegoeswiththepassingofthewave.

D.Thelengthofawavemeansthedistancefromthetopofawavetothebottom.3.ThespeedofWave1is100cm/s,frequency10.ThefrequencyofWave2is300,whileitsspeedistwicethatofWave1.Whichofthefollowingisright?A.Thewavelengthsofthetwoareequal.

B.ThewavelengthofWave1is10timeslongerthanthatofWave2.C.ThewavelengthofWave2islongerthanthatofWave1.D.ThewavelengthofWave1islongerthanthatofWave2.【答案解析】本文是說明文，講述了海浪的有關(guān)知識。1.C。細節(jié)題。根據(jù)Butthewavesmostofusknowareproducedbywindsblowingoverthesea.可推知此題答案為C。2.B。細節(jié)題。根據(jù)Thewaterthatmakesupawavedoesnotadvancewithitacrossthesea.可知水并不會隨海浪一起運動。3.D。推斷題。根據(jù)Speed=wavelength×frequency計算公式，Wavelength=speed÷frequency，所以波浪1的波長為10cm，波浪2的波長為cm，故D正確。

(7)TheWorld’sLargestInsectThisgiantinsectcanbeusedasatoy.Achildtiesoneendofastringtoastickandtheotherendaroundthe“neck”ofaninsect.Holdingthestick,thechildletstheinsectgo.Withaloudwhirringsound,theinsecttakesoff,pullingthestringinalargecurveoverthechild’shead.Thechildlaughsasthestickjumpsaround.ThechildisAfrican,andthetoyistheAfricanGoliathbeetle,thelargestinsectintheworld.TheGoliathisatrueinsectbecauseithassixlegsandabodythatisdividedintothreeparts.Likeallbeetles,ithastwopairsofwings.Thefrontpairarethickandstiffandprotectthebackpair,whicharesoft.Itisthesesoftbackwingsthatmakethebeetleflyforward.Theyalsocausetheloudwhirringsoundthebeetlemakeswhenitflies.Tosteer,thebeetletwistsandturnsitslegsthesamewayyousteerabikebyturningitsfrontwheel.AfricanchildrenoftenusetheGoliathbeetleasatoy.Althoughitisover15centimeterslong,itisquiteharmless.1.TheAfricanGoliathbeetleis_______.

A.theworld’slargestinsect

B.atoyusedinmanypartsoftheworldC.theonlyinsectfoundinAfrica

D.theworld’ssmallestinsect2.Whatmadethewhirringsoundthatthechildheard?A.Thecurvedstring.

B.Thebeetle’ssoftwings.

C.Thebeetle’ssixlegs.

D.Thebeetle’sbody.3.WeknowtheGoliathbeetleisatrueinsectbecauseit_______.

A.makesawhirringsoundwhenitflies

B.hasbothsoftandhardwingsC.hassixlegsandabodywiththreeparts

D.canfly4.Whenflying,theGoliathsteersby_______.

A.turningitssoftbackwings

B.twistingandturningitshardfrontwingsC.twistingandturningitslegs

D.twistingandturningitswholebody5.Whatmadethestickjumpinthechild’shand?A.Thestickjumpedbecausethechildlaughed.

B.Thebeetlepulledonthestringwhenitflew.C.Thechildbouncedthesticktomakethebeetlefly.

D.Thechildmadethestickjump.【答案與解析】本文介紹了世界上最大的昆蟲

theGoliathbeetle。1.A。細節(jié)題。根據(jù)文章第2段最后一句

…theAfricanGoliathbeetle,thelargestinsectintheworld可推知此題答案為

A。2.B。細節(jié)題。根據(jù)文章第3段中Itisthesesoftbackwingsthatmakethebeetleflyforward.Theyalsocausetheloudwhirringsoundthebeetlemakeswhenitflies可推知此題答案為

B。3.C。細節(jié)題。根據(jù)文章第3段第1句

…becauseithassixlegsandabodythatisdividedintothreeparts

可推知此題答案為

C。4.C。細節(jié)題。根據(jù)文章第3段最后一句

Tosteer,thebeetletwistsandturnsitslegsthesamewayyousteerabikebyturningitsfrontwheel

可推知此題答案為C。5.B。細節(jié)題。根據(jù)文章第2段第3句

…theinsecttakesoff,pullingthestring…可推知此題答案為

B。(8)Theideaofrainmakingisalmostasoldasman,butitwasnotuntil1946thatmansucceededinmakingrain.Inancient(古代的)times,rainmakersclaimed(聲稱)tobeabletobringrainbymanymethods;dancing,singing,killingvariouskindsoflivingcreatures(includinghumans),andblowingastreamofwaterintotheairfromakindofpipe.Morerecently,somerainmakersclaimedtomakerainbyshootingguns,causingexplosions,orburningchemicals,thesmokeofwhichwassupposedtocauseraintofall.Theserainmakersaskedforasmuchas1,000dollarstomakeaninchofrain.Onewassoeffectivethathewasalmosthanged.Hewasbelievedtohavecausedatwenty-inchraininsouthernCaliforniathatfloodedthatland,killedseveralpeople,anddidmillionsofdollars’worthofdamage.Before1946,rainmakerswereeitherliarsorhonestpeoplewhohappenedtohavegoodluck.ScientificrainmakingwasstartedinthatyearbyVincentJ.Schaefer,ascientistatthelaboratoriesoftheGeneralElectricCompanyinNewYorkState.Hissuccesswastheresultofaluckyaccidentthatchangedyearsoffailureintovictory.1.Onerainmakerwasalmosthangedbecause______.

A.hedidnotmakerainatall

B.heaskedfortoomuchmoneyC.peoplethoughthecausedtoomuchrain

D.hekilledseveralpeople2.Whichofthefollowingmethodscanmakerain?A.Killingpigsandsheep.

B.Blowingastreamofwaterintotheairfromakindofpipe.C.Shootinggunsorcausingexplosions.

D.Noneoftheaboveisright.3.Whowasthefirstrainmakersucceedinginmakingrain?A.Theonewhocausedatwenty-inchraininsouthernCalifornia.B.Before1946,arainmakerwhohappenedtohavegoodluck..C.VincentJ.Schaefer,in1946.

D.Thepassagedoesn’ttellushisorhername.【答案與解析】人工降雨的想法和人類的歷史幾乎是一樣長，歷史上曾演繹出許多人工降雨的鬧劇。第一次科學人工降雨是在1946年，由美國紐約州的VincentJ.Schaefer

完成。1.C。細節(jié)題。根據(jù)第2段最后一句Hewasbelievedtohavecausedatwenty-inchraininsouthernCaliforniathatfloodedthatland,killedseveralpeople,anddidmillionsofdollars’worthofdamage

可知答案為C。2.D。判斷題。從第2段內(nèi)容可以明顯看出A、B、C三項均不能降雨，所以選D。3.C。細節(jié)題。從最后一段第2句話Scientificrainmakingwasstartedinthatyear(1946)byVincentJ.Schaefer,ascientistatthelaboratoriesoftheGeneralElectricCompanyinNewYorkState可以確定該題的正確答案。(9)Sometimepeoplecalleachother“scared-cat”,buthaveyoueverthoughtaboutthisexpression?Whenacatisfrightened,itsheartstartsbeatingfaster,itsmusclesgettense,andtherearechangesinthechemicalsinitsbloodstream.Althoughthecatdoesn’trealizethis.Itsbodyisgettingreadyforaction.Ifthedangercontinues,theanimalwilldooneoftwothings.Itwilldefenditself,oritwillrunawayasfastasitcan.Somethinglikethisalsohappenstopeople.Whenweareexcited,angry,scared,orarousedbyotheremotions(feelings),ourbodiesgothroughmanyphysicalchanges.Ourheartsbeatfaster,andourmusclesgettense.Allofthesechangesmakeusmorealertandreadytoreact.We,toogetreadytodefendourselvesorrun.Humanbeings,however,haveaproblemthatanimalsneverface.Ifwegivewaytoourfeelingsandletthemtakeover,wecangetintotrouble.Haveyoueversaidsomethinginanger—orhitsomebody—andregretteditlater?Haveyouevershoutedatateacher,toldsomebodyyouwerelonely,orsaidyouwereinlove,andthenwishedlateryouhadkeptyourmouthshut?Itisn’talwayswisetoexpressyourfeelingsfreely.Doesthismeanthatit’ssmarteralwaystohideourfeelings?No!Ifyoukeepfeelingsofanger,sadnessandbitternesshiddenawayorbottledupinside,yourbodystaystense.Physicalillnesscandevelop,andyoucanfeelchurnedup

inside.Itcanactuallybebadforyourhealth.(Itisn’tgoodtokeeppleasantfeelingsinsideeither;allfeelingsneedtobeexpressed.)Feelingsthatyoukeepallbottledupinsidedon’tjustgoaway.It’sasifyouboughtsomebananasandstucktheminacupboard.Youmightnotbeabletoseethem,butbeforelongyou’dsmellthem.Andifyouopenedthecupboard,chancesareyou’dseelittlefruitflieshoveringalloverthem.They’dberotten.Youcantrytotreatemotionsasiftheywerebananasinthecupboard.Youcanhidethemandyoucanpretendtheydon’texist,butthey’llstillbearound.Andatlastyou’llhavetodealwiththem,justlikethosebananas.1.Thebesttitleforthisarticleis_______.A.EmotionsAffectOurBodies

B.WhatHappenstoaFrightenedCatC.WhatHappenstoAnexcitedPersonD.FeelingsThatPeopleHave2.Theunderlinedwords“churnedup”inthefourthparagraphmean_______.A.beingpuzzled

B.beinghurt

C.madeupset

D.madesatisfied3.Theauthorwrotethisarticleinorderto_______.A.tellusthatitisn'tgoodtokeepfeelingsinside

B.giveussomeadviceonhowtoexpressourfeelingsC.makeusfacetheproblemthatwehavetodealwithfeelingsD.makeusknowthatitisn'talwayswisetoexpressourfeelingsfreely【答案與解析】文章闡述了人的喜怒哀樂等各種情感都有必要表達出來，否則，對健康不利，甚至會引發(fā)各種疾病。1.A。主旨題。讀完全文，很容易明白這篇文章的主旨是“情感影響我們的身體”。2.C。詞義猜測題。細讀Physicalillnesscandevelop,andyoucanfeel

churnedup

inside這句，然后對比所給的4個選項，可知只有C最為恰當。3.D。主旨題。從第3段舉的例子可以看出作者的寫作目的。(10)OnOct.12,1989,someChinesescientistswereworkingatthecomputerstolookfortheinformationtheyneeded.Suddenlytheysawalotofverybrightspotscrossingthecomputer’sscreens.Atthesamemomentthecomputerswereworkingmuchslower.Tofindoutwhatwashappening,theystoppedtheirworktochecksomepartsofthecomputers.Totheirhorror,theyfoundoutthatmostoftheirstoredinformationwasgotridofbycomputerviruses(病毒).Obviouslyallthesecomputershadbeeninfected(傳染)bycomputerviruses.

Itissaidthatthecomputervirusesweremadebyagroupofyoungmenfondofplayingtricks.Theyallhadexcellenteducation.Theycreatedthevirusesjusttoshowtheirintelligence.ThiskindofcomputervirusesisnamedJerusalemViruses.Thesevirusescanstayincomputersforalongtime.Whenthetimecomestheywillattackthecomputersbyloweringthefunctions,damagingnormalprogramsorevengettingridofalltheinformation.Wenowcometo