While doing calculation for the project, the designers____a new solution to a geological problem.
A、fellintoB
【参考译文】在对工程进行计算时，设计人员碰巧找到了解决地质问题的方法。
【试题分析】本题是一道词义辨析题。
【详细解答】“fallinto”含义为“被卷入……”;“stumbleupon”含义为“偶然找到，发现”;“setout”含义为“启程，出发”;“discover”含义为“发现，发觉”。从四个选项看，含有“偶然”含义的“stumbleupon”最适合本句话。
Passage2
Questions6to10arebasedonthefollowingpassage:
Whenaluminumwasfirstproducedaboutahundredandfiftyyearsago,itwassodifficulttoseparateformtheoresinwhichitwasfoundthatitspricewashigherthanthatofgold.Thepriceremainedhighuntilanewprocesswasdiscoveredforrefiningthemetalwiththeaidofelectricityapproximatelythreequartersofacenturylater.Thenewmethodwassomuchcheaperthataluminumbecausepracticalformanypurposes,oneofwhichwasmakingpotsandpans.
Aluminumislightweight,rustproofandeasilyshapedintodifferentforms.Bymixingitwithothermetals,scientistshavebeenabletoproduceavarietyofalloys,someofwhichhavethestrengthofsteelbutweighonlyonethirdasmuch.
Today,theusesofaluminumareinnumerable.Perhapsitsmostimportantuseisintransportation.Aluminumisfoundintheengineofautomobiles,inthehullsofboats.Itisalsousedinmanypartsofairplanes.Infact,thehuge“airbus”planeswouldprobablyneverhavebeenproducedifaluminumdidnotexist.Bymakingvehicleslighterinweightaluminumhasgreatlyreducedtheamountoffuelneededtomovethem,Aluminumisalsobeingusedextensivelyinthebuildingindustryinsomecountries.
Sincealuminumissuchaversatile(多用的)metal,itisfortunatethatbauxite(铝土矿),whichisoneofitschiefsources,isalsooneoftheearth’smostplentifulsubstances.Asthesourceofaluminumisalmostinexhaustible,wecanexpectthatmoreandmoreuseswillbefoundforthisversatilemetal.
6.Thepriceofaluminumwassharplyreducedwhenpeoplediscoveredanewrefiningprocesswiththeaidof.
A.windB.solarenergyC.hydraulicpowerD.electricity
7.Aluminumis.
A.lightweight,rustproofbutnoteasilyshapedintodifferentforms
B.heavyweight,rustproofandeasilyshapedintodifferentforms
C.lightweight,rustproofandeasilyshapedintodifferentforms
D.lightweightandeasilyshapedintodifferentformsbutitiseasytobecomerusty
8.WhichofthefollowingisNOTtrue?
A.Aluminumiswidelyusedintransportation.
B.Aluminumisalsousedinmanypartsofairplanes.
C.Aluminumisbeingusedextensivelyinthebuildingindustry.
D.Aluminumisnotusedinitspureform.
9.Aluminumisfoundonearthmostlyintheformof.
A.puremetalB.bauxiteC.goldD.liquid
10.Whatisthepassagetalkingabout?
A.Thefeaturesofaluminumanditsfunctions.B.Theprocessofaluminum.
C.Thediscoveryofaluminum.D.Thepromisingfutureofaluminum.
翻译：
Asthesourceofaluminumisalmostinexhaustible,wecanexpectthatmoreandmoreuseswillbefoundforthisversatilemetal.(PassageTwo)
PartIIVocabularyandStructure
Directions:Inthisparttherearefortyincompletesentences.Eachsentenceisfollowedbyfourchoices.ChoosetheonethatbestcompletesthesentenceandthenmarkyouranswerontheAnswerSheet.
21.Agreatmanycancerscanbecuredbutonlyifbeforetheyhavebeguntospreadorcolonizeinotherpartsofthebody.
A.properlytreat
B.properlytreating
C.beingproperlytreated
D.properlytreated
22.sheisalikeablegirl,sheisverydifficulttoworkwith.
A.SinceB.HoweverC.AsfarasD.While
23.Allthetouristsgavetherobbertheirmoney.
A.frightenedB.frighteningC.frightenD.frightful
24.herage,shereallydidagoodjobinsuchashorttime.
A.GivingB.GivesC.GiveD.Given
25.Thesoldierwaswithneglectinghisduty.
A.chargedB.conductedC.chargedD.committed
26.Thereasonwhythecarstoppedwas.
A.becausetheroadwasnotgoodB.thattheroadwasnotgood
C.duetothebadroadD.becauseofthebadroad
27.You’dbetterhurry,youmightbelateforclass.
A.orB.andC.unlessD.but
28.,heperformedthetaskwithsuccess.
A.ItwasexpectedB.Whichwasexpected
C.AswasexpectedD.Thatwasexpected
29.ThedoctorfeltJohn’sarmtoifthebonewasbroken.
A.workoutB.findoutC.lookatD.seeout
30.Hejustmysuggestionatthemeetingyesterday.
A.putawayB.shutdownC.showedoffD.brushedaside
31.Thequestionatthenextmeetingremainasecret.
A.discussedB.todiscussC.tobediscussedD.beingdiscussed
32.Hislazinesshisfailureinthefinalexam.
A.gaveupB.contributedC.resultedinD.distributed
33.Theteacher’stomystatementaboutthispoetledmetoreadwidelyaboutpoems.
A.changeB.chargeC.challengeD.chance
34.Onmostofthenights,Janereadinglettersfromherboyfriend.
A.stayedoffB.stayedonC.stayedoutD.stayedup
35.Thefirst-yearstudentswerelearningformthearmyinMiyun,asuburbofBeijingnearIlived.
A.whatB.whereC.thatD.which
36.Lyndaandhundredsofyoungpeoplelikehimthepostoftypist.
A.approachedB.appliedforC.appealedtoD.approvedof
37.Anybodyisentitledtosuchbenefitofageorsex.
A.regardlessB.whetherC.inspiteD.incase
38.Inthisbuildingeachapartmentcouldafamilyofsix.
A.houseB.coverC.makeD.include
39.Itriedtogetoutofthebusiness,Ifoundimpossible.
A.whoB.whichC.thatD.what
40.Whenheexplaineditagainandagain,thestudent’spatience.
A.ranoverB.ranonC.ranoutD.ranoff
41.WhenherneighborGrandmaWangbecameill,thegirloften.
A.fittedinB.workedoutC.heldbackD.helpedout
42.Ifyoureallywanttoapplyforthedangerousjob,Iwon’t,thoughtIthinkit’sacrazyidea.
A.stoodinyourwayB.standontheway
C.standinyourwayD.standbytheway
43.Hewastryingtoread;,thephonekeptringing.
A.meanwhileB.thenC.laterD.afterwards
44.Iamoutofthosepeoplewholikeastrenuous(费力的)holiday;Ibelievein.
A.tookiteasyB.takeniteasy
C.takingiteasyD.takingiteasily
45.Thepolicematchedthefingerprintsandfoundtheywere.
A.equivalentB.identicalC.similarD.equal
46.Formally,intheUnitedStates,manynursesworkedasprivatedutynursesinhospitals.
A.otherthanB.morethanC.lessthanD.ratherthan
47.Ifyoudon’tmind.Idomyhomeworkthanplaycardswithyou.
A.hadbetterB.preferC.wouldratherD.wouldlike
48.Theirideawastogetustothestrikeatonce.
A.callatB.calloffC.callinD.callfor
49.MycarsoIhadtocomebybus.
A.felldownB.brokedownC.felloverD.turnedaway
50.Icouldtellhewassurprisedfromtheonhisface.
A.appearanceB.sightC.expressionD.explanation
51.Whichis,NorthAmericaorSouthAmerica?
A.biggestB.thebiggestC.morebiggestD.bigger
52.Youshouldobservecarefullyhowtheaudiencehisspeech.
A.reachtoB.refertoC.reacttoD.relateto
53.Thesefarmersgotagoodharvestlastyear,sotheyabigsumofmoneyfornewfarmmachines.
A.setasideB.setaboutC.setupD.setback
54.Oneofmysayingsis“wherethereisawill,thereisaway.”
A.likelyB.favorableC.alikeD.favorite
55.Allisacontinuoussupplyoffueloil.
A.whatisneededB.thatisneeded
C.thethingisneededD.fortheirneeds
56.Thehighincometaxisharmfulitmaydiscouragepeoplefromtryingtoearnmore.
A.inthatB.thatC.inwhichD.which
57.Anewtechniqueout,theyieldincreasesby20%.
A.havingworkingB.havingbeenworked
C.atalossD.forgood
58.Thebirdflewintotheairandwassoon.
A.outofsightB.inahurryC.atalossD.forgood
59.ItisdecidedthatheforabustomeettheguestsfromBeijing.
A.callB.callsC.arrangeD.arranges
60.Iknowit’snotimportantbutIcan’thelpaboutit.
A.tothinkB.thinkingC.andthinkD.beingthought
翻译：
As the source of aluminum is almost inexhaustible, we can expect that more and more uses will be found for this versatile metal. (Passage Two)
Thefirstparagraphisintendedto________.
