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1、九年级阅读能力训练(三)一、完形填空“Ruby(红宝石)!Itsarubychoco1ate!,Myschoo1matescheeredinexcitementasthey1earnedaboutanewkindofchoco1ate.SharonMin,anadmissions(招生)officerfromJacobsUniversityBremen,1ourschoo11astmonth.Afterte11ingusa1itt1ebitabouttheuniversity,she2ustorubychoco1ate,givingsomepiecestostudentswhoaskedher
2、3duringaQandAsession(环节).Iwas1uckyenoughtogeta(n)4.Iwasveryinterestedinthisnewkindofchoco1ate.Ididsomeresearchon1ineand5thatrubychoco1ateisthe6kindofchoco1ateafterb1ackchoco1ate,whitechoco1ateandmi1kchoco1ate.Rubychoco1ateisproduced7aSwisscompany.ResearchersatUniversityBremen,Germanyhavebeen8itforma
3、nyyears.After80years,theywereab1etocreaterubychoco1ate.Thischoco1atehasa1ightpinkco1or.Itissaidtobefreeofadditives(添加剂)andartificia1(人工的)co1ors.Itis9rubycocoabeans(可可豆).Thecompanythatmakesithasn,tbeenab1etota1kmuchabouthowit,sproduced,asthisisatrade10.Imsti1111abouthowitismade.Itisamazingtoseewhatpe
4、op1ehavebeenab1etomakethroughtheuseofscienceandtechno1ogy.Rubychoco1ateisjustoneofthese12.1wanttostudymateria1scienceinthefutureandmakeour1ivesbetter.AnewsuperconductorworksatroomtemperatureImaginetryingtorunthroughafie1d,buttherearea1otofthingsinyourway.Youhavetos1owdowntogetthrough.Butifthefie1dis
5、c1eared,youcou1drunasfastasyouwant.Thisishowe1ectricitygoesthroughasuperconductor(超导体).Whi1einnorma1conductorsthee1ectrons(电子)maycomeacrossmanyotherpartic1es(粒子),theyhaveac1earpath(通道)inasuperconductor.Thismeansthee1ectricitycantrave1withnoresistance(电阻)inasuperconductorandwastesnoenergy.Recent1y,sc
6、ientistssaidtheyhadcreatedasuperconductorthatcanworkatroomtemperature.Ifproventrue,itcou1dbecomeoneofthe4greatestscientificachievementsofthe21stcentury,wrotePhysicsmagazine.Thefirstsuperconductorwasdiscoveredin1911byDutchscientistHeikeOnnes.Hefoundthatmercury(汞)coo1edto-269Cwou1d1osea11resistancetoe
7、1ectricity.Sincethen,scientistshavebeentryingtousesuperconductorsindifferentareas.Onecoo1estuseisinthemag1ev(磁悬浮的)trains.Themagneticfie1ds(磁场)andsuperconductorinteract(相互作用),creatingaforcethatpushesthemagnetup.Butcurrent1y,thesuperconductoron1yworkswhenthetemperatureisvery1ow.Itmeansthepriceishighan
8、ditcannotbewide1yused.Thenewstudy,donebyscientistsfromtheUniversityofRochester,US,createdthesuperconductorwithhydrogen(M),nitrogen(氮)and1utetium(错)at21C.Itsti11requiredapressureofabout10,000timesthatofEarth,satmosphere(大气层).Butthat,sfar1owerthanthepressuretypica11yrequiredforsuperconductors.Ifthisne
9、wmateria1canbeusedinthecitygrid(电网),“a1otofenergycanbesaved,“said1uoHuiqianattheChineseAcademyofSciences.Themag1evtrainswou1dbecomefaster,reaching800to1000ki1ometersperhour.Themateria1cou1da1so1eadtofastercomputers,andthusdeve1opmentinAIandotherareasthatneedfastcomputing.1. Whatisasuperconductor?A.
10、Ita11owse1ectricitytof1owwithnoresistance.B. Itisthewireweusetotransmite1ectricity.C. Itisaconductorwithhighresistancetoe1ectricity.D. Itisadeviceusedtocoo1mercuryto-269C.2. Whyisitdifficu1ttowide1yusesuperconductorscurrent1y?A. Becausetheycanre1easehighairpressure.B. Becausetheyon1yworkatthetempera
11、tureof21C.C. Becausetheycanproduce1otsofheat.D. Becausetheyworkon1yin1owtemperatures.3. Theunder1ineditinParagraph6refersto.A. themag1evtrainB. thecurrentsuperconductorC. thefirstsuperconductorC.thenew1yfoundmateria14. Comparedtothecurrentsuperconductor,thenewoneinthestudy.a. canworkatahighertempera
12、tureb. costs1esstoproducec. requiresmuch1owerairpressured.needsfewermateria1stoproduceA.abB.beC.acD.bd5. Iftheroom-temperaturesuperconductorcomestrue,.A. wewon,t1acke1ectricityanymoreB. techno1ogiesinmanyareascanbeimprovedC. themag1evtrainswi11movewithoutresistanceD. thetransmissionofe1ectricitycanb
13、emomentaryBKidstrytomakeothersdreamscometrueMidnightisthetimewhenchi1drenarefastas1eep.ButforthecharactersinTheMidnightGang(圆梦小队的午夜计划),theadventures(W)arejustbeginning.WrittenbyEng1ishcomedian(喜剧作家)DavidWa11iams,thebookta1ksaboutserioussocia1prob1emsinafunwaythroughtheeyesofchi1dren.Thestorybeginswh
14、enTomgetshitontheheadandissenttoahorrib1e(可怕的)hospita1.Thedoctorstherearesi11y,andthematron(护士长)hateschi1dren.Peop1eneedtospendaweekansweringnear1y200questionsbeforetheycanseethedoctor.Inthehospita1,Tommeetsothersickchi1dreninc1udingAmber,RobinandSa11y.A11thesechi1drenhaveonethingincommon:Theirparen
15、tsdon,thavetimeforthem.Onenight,thechi1drenfindthatthehospita1,scorridors(走廊)canturnintoanadventure-fi11edwor1datmidnight.Itturnsoutthatmanyyearsago,amysterious(神秘的)patientfounded(建立)asecretsocietyca11edtheMidnightGang.Sincethen,membersoftheganghavebeenmakingotherpatientsdreamscometrue.Thechi1drenbe
16、comepartofthegangandtrytheirbesttomakeeveryone,sdreamscometrue.Forexamp1e,theycreateatheaterinthehospita1toputonshows.Theya1souseba11oonsto1etaboyf1yabovethehospita1.Thisbookusesafunwritingsty1etodiscussa11kindsofdifferenttopics,1iketheimportanceofimaginationanddreams,bu11ying(霸凌),sicknessandevendeath.Ita1sote11susthateventhroughhardtimes,we,vegottostaystrongand1ookonthebrightside.1. Theh