阅读理解分类练习科技类

阅读理解分类练习科技类四、科技类(1)WouldyoucarryaroundanelectronicID,notinyourpocket,butinyourbody?Doesthisideascareyouormakeyoufeelsafe?ThefirstcomputerIDchip(芯片)thatcouldbeplantedunderaperson’sskinmightbemarketedverysoon.DevelopedbyAppliedDigital,anAmericantechnologycompanybasedinFlorida,thedevice(发明物)couldmeettheneedforpublicsecurity(安全)aftertheSeptember11attacks.Forairports,nuclearpowerplants(核电站)andotherhighsecurityfacilities(设备),theimmediateeffectsareobvious.ThetechnologycouldhelpputanendtofalseIDcards,becauseitwouldbedifficulttoremoveandcopyatinycomputerchip.Thechipisassmallasagrainofrice.Thetechnologywouldalsoallowsatellitestotrack(追踪)aperson’severymovementandstoremedicalrecords.Theseusesarealreadyattractinginterestfortaskslikefightingagainstkidnappings(绑架),orhelpingwithmedicaloperations.Butsomepeopleareafraidofthelossofprivacy(隐私).“Youalwayshavetothinkaboutwhatthedevicecouldbeusedfortomorrow,”saidLeeTien,aseniorprivacylawyerintheUnitedStates.“Atfirstadeviceisusedforapplicationsweallagreearegood,butthenitslowlystartsbeing

usedformorethanitwasintended,”hesaid.However,AppliedDigitalsaysitwillsoonapplyfor(申请)governmentpermissionforthedevice.Itsaysthatthefirstpeopletousethechipwillbevolunteers.Gettingtheimplant(需移植的芯片)wouldgosomethinglikethis:ApersonorcompanybuysthechipfromAppliedDigitalforaboutUS$200.Andthecompanyencodes(编码)itwiththedesiredinformation.Thecustomerthentakesthechiptotheirdoctor,whocanplantitwithalargeneedle.Thedevicehasnopowersupply,ratheritisactivated(使活动,使运行)byascanner(扫描仪)

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】本文介绍了新的个人身份证—电子身份证的特点、功能及人们对此的态度。1.B。主旨题。

根据

WouldyoucarryaroundanelectronicID,notinyourpocket,butinyourbody?…ThefirstcomputerIDchipthatcouldbeplantedunderaperson’sskinmightbemarketedverysoon

及以后的内容可知本文讲述的是安装在皮肤上的电子身份证与传统身份证比较所显示出来的新特点，故选

B。2.C。细节题。阅读全文可知

A、B、D

与原文不相符，再根据

ThetechnologycouldhelpputanendtofalseIDcards

可知

C

为正确答案。3.A。细节题。根据第

7

段

Theseusesarealreadyattractinginterestfortaskslikefightingagainstkidnappings,orhelpingwithmedicaloperations

及倒数第2段

…hopestobecomethefirstbuyerofthechiptostorehismedicalrecords

可知这种电子身份证有助于医学手术及储存医学纪录的作用，故选

A。4.D。推断题。根据

Sufferingfromaseriousillness,hewantstomakesuredoctorscanhelphimquickly

及

JellJacobs

fromFloridahopestobecomesthefirstbuyerofthechip…

可知答案

D

说是这两句话的总结。(2)Overthepast10years,technologiesthathavecombinedcomputerswithtelephoneshavedeveloped.TechnologiessuchasPCfaxprogramsandLANfaxservers(局域网传真服务器)havebeenusedtoimprovefaxcommunications.Thelatestcomputer-basedtechnologiesarenewmechanisms(机制)whichuseIP(InternetProtocol,

因特网协议)tosendfaxes,thatis,IPfax.Traditionalfaxhasafairlysimpleusagemodel.First,theuser

inserts

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

公共电话交换网)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】本文介绍了传统的传真和科技的发展带来了现代传真的新特点。1.B。主旨题。根据

Thelatestcomputer-basedtechnologiesarenewmechanismswhichuseIPtosendfaxes,thatis,

IPfax

以及第

3段中的

In

IPfax

systemtherearetwobasictransmissionmodes…和第

4

段中的

IPfax

enablesafaxdocumentstobesentfromonepersontoanother

及后述内容都是展开讲述

IPfax

的有关内容，由此可见

B

为正确答案。2.D。细节题。根据第

2

段

Traditionalfax

hasafairlysimpleusagemodel.First,theuserinsertsadocumentintothe

faxmachine,…Thesendingmachinedialsthereceiving

faxmachine可知在传统的传真中，仅仅使用普通的传真机，而

A、B、C

是在现代的传真时才使用，故选

D。3.B。细节题。

根据

Atthesametime,thereceivingmachinereceivesthedocument

andthenprintsit

可知

areceivingmachine仅仅用来接收的，据此选答案

B。4.A。细节题。根据

Real-timemodeallowstwofaxmachinestodirectlycommunicatethroughsomestandard

可知在真实模式下，两台传真机可以直接交流，据此选

A。5.C。词义猜测题。根据

First,theuser

inserts

adocumentintothefaxmachine

可知使用者不是把文件打印(A)、挤压(B)、使用(D)而是放入到传真机里，由此选答案

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【答案与解释】探测矿产资源历来是苦差事。科学家们通过研究，独劈蹊径，采用一种新的快捷有效的方法—根据地面植物情况来判定地下的矿产资源。1.D。语义理解题。根据文章第1段的内容以及一般常识可推知答案。2.C。细节题。从文中最后一句Theseedsgrowingnearesttothetreetrunkshadmoregoldthanthosegrowingontheendsofthebranches

可知。3.D。主旨题。通读全文可知答案为D。4.A。细节题。从最后一段可知通过研究

roots,branches

和

seeds可判定地下是否有矿产，而

leaves

在文章却没有提到。5.D。细节题。从文章第1段的第

1

句和第

2

段可找到答案。(4)Newfindingssuggestthatbrainycardgamessuchascontractbridgemaytemporarily(临时地)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(神经免疫学),whosenamereflectsthefactthatthenervoussystemandtheimmunesystemarenotconsideredseparateandisolated(独立的)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.【答案与解释】Diamond

通过对打桥牌的12名女士的血液抽样调查研究，发现神经系统与免疫系统不是分别独立的。人们从事智力游戏时，白细胞大量增加，对免疫系统有促进作用。1.A。主旨题。从文章的第

1

句话中可知答案。2.C。细节题。从第

2

段第

2

句话中可知答案。3.B。细节题。从第

3

段第

2

句话中可知答案。4.A。判断题。从第

4

段第

2

句中可找到正确答案。(5)Everylivingcell(细胞)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.【答案与解析】

基因是由叫做DNA的化学物质构成的。科学家们已经开始绘制人体基因图了。1.D。细节题。命题依据是第

2

段第

2

句话Intheearly1950’stwoscientists,FrancisCrickandJamesWatson,figuredouthowthepartsofDNAfittogether。2.C。主旨题。从文章内容可知，不同的基因有不同的功能。所以，本文主旨应该是C项。3.A。判断题。只有A项内容文章涉及了，B、C、D三项内容文章没有体现。(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】本文是说明文，讲述了海浪的有关知识。1.C。细节题。根据Butthewavesmostofusknowareproducedbywindsblowingoverthesea.可推知此题答案为C。2.B。细节题。根据Thewaterthatmakesupawavedoesnotadvancewithitacrossthesea.可知水并不会随海浪一起运动。3.D。推断题。根据Speed=wavelength×frequency计算公式，Wavelength=speed÷frequency，所以波浪1的波长为10cm，波浪2的波长为cm，故D正确。

(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.【答案与解析】本文介绍了世界上最大的昆虫

theGoliathbeetle。1.A。细节题。根据文章第2段最后一句

…theAfricanGoliathbeetle,thelargestinsectintheworld可推知此题答案为

A。2.B。细节题。根据文章第3段中Itisthesesoftbackwingsthatmakethebeetleflyforward.Theyalsocausetheloudwhirringsoundthebeetlemakeswhenitflies可推知此题答案为

B。3.C。细节题。根据文章第3段第1句

…becauseithassixlegsandabodythatisdividedintothreeparts

可推知此题答案为

C。4.C。细节题。根据文章第3段最后一句

Tosteer,thebeetletwistsandturnsitslegsthesamewayyousteerabikebyturningitsfrontwheel

可推知此题答案为C。5.B。细节题。根据文章第2段第3句

…theinsecttakesoff,pullingthestring…可推知此题答案为

B。(8)Theideaofrainmakingisalmostasoldasman,butitwasnotuntil1946thatmansucceededinmakingrain.Inancient(古代的)times,rainmakersclaimed(声称)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.【答案与解析】人工降雨的想法和人类的历史几乎是一样长，历史上曾演绎出许多人工降雨的闹剧。第一次科学人工降雨是在1946年，由美国纽约州的VincentJ.Schaefer

完成。1.C。细节题。根据第2段最后一句Hewasbelievedtohavecausedatwenty-inchraininsouthernCaliforniathatfloodedthatland,killedseveralpeople,anddidmillionsofdollars’worthofdamage

可知答案为C。2.D。判断题。从第2段内容可以明显看出A、B、C三项均不能降雨，所以选D。3.C。细节题。从最后一段第2句话Scientificrainmakingwasstartedinthatyear(1946)byVincentJ.Schaefer,ascientistatthelaboratoriesoftheGeneralElectricCompanyinNewYorkState可以确定该题的正确答案。(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【答案与解析】文章阐述了人的喜怒哀乐等各种情感都有必要表达出来，否则，对健康不利，甚至会引发各种疾病。1.A。主旨题。读完全文，很容易明白这篇文章的主旨是“情感影响我们的身体”。2.C。词义猜测题。细读Physicalillnesscandevelop,andyoucanfeel

churnedup

inside这句，然后对比所给的4个选项，可知只有C最为恰当。3.D。主旨题。从第3段举的例子可以看出作者的写作目的。(10)OnOct.12,1989,someChinesescientistswereworkingatthecomputerstolookfortheinformationtheyneeded.Suddenlytheysawalotofverybrightspotscrossingthecomputer’sscreens.Atthesamemomentthecomputerswereworkingmuchslower.Tofindoutwhatwashappening,theystoppedtheirworktochecksomepartsofthecomputers.Totheirhorror,theyfoundoutthatmostoftheirstoredinformationwasgotridofbycomputerviruses(病毒).Obviouslyallthesecomputershadbeeninfected(传染)bycomputerviruses.

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