留学统一考试试题及答案

留学统一考试试题及答案英语部分单项选择题1.—Howwasyourdayoffyesterday?—Perfect!Itwas____birthdayofmygrandpa's.Wehadabigfamilycelebration.A.seventyB.theseventiethC.seventeenthD.theseventeen答案：B。分析：表示“某人多少岁生日”要用序数词，且序数词前要加定冠词the，爷爷不可能是十七岁，所以是第七十个生日，选B。2.Theyoungmanwasoftenseen____bythelake.A.todrawB.todrawingC.drawD.drew答案：A。分析：在主动语态中，seesb.dosth.省略to，但在被动语态中要还原to，即sb.beseentodosth.，所以选A。3.Themovieisreallyexciting.____thestudents____theirteacherisenjoyingthemovie.A.Both;andB.Notonly;butalsoC.Either;orD.Neither;nor答案：B。分析：both...and...连接主语时，谓语动词用复数；notonly...butalso...遵循就近原则；either...or...和neither...nor...也遵循就近原则。根据is可知选B。4.—Doyouknow____theCapitalMuseum?—NextFriday.A.whenwilltheyvisitB.whentheywillvisitC.whendidtheyvisitD.whentheyvisited答案：B。分析：宾语从句要用陈述句语序，排除A、C；根据答语NextFriday可知用一般将来时，所以选B。5.Idon'tthinkfastfoodisgoodforourhealth,soI____gotoMacDonald.A.seldomB.alwaysC.usuallyD.often答案：A。分析：因为认为快餐对健康不好，所以很少去麦当劳，seldom表示“很少”，符合题意，选A。阅读理解题Passage1ThefirsttimeIsawSuzyKhan,IknewIhadtohelpher.Shewasreallysmallforherageof12.Theboysinmyclassoftenlaughedatherabouthersizeandshebecameveryshy.Allshewantedwastofitin.IlookeddownatthistinygirlandpromisedmyselfthatsomehowIwouldhelpher.ButhowcouldIhelpherfitin?Therehadtobeaway.Oneday,whenIwentintotheclassroom,IsawthatSuzyhadopenedhergeographybooktoapictureofatrain,andinhernotebookshehadmadeaperfectcopy.Iwassurprisedandthoughtthatshecoulddosomethinginthecomingtalentshow.So,Itookhertoseetheartteacher,MissParker,andshowedherwhatSuzyhaddrawn."Why,it'swonderful,"saidMissParker,whothenshowedusapostershewasworkingonforthetalentshow."Ineedmoreofthese,butIjustdon'thaveenoughtime.Couldyouhelpme,Suzy?"Onthedayofthetalentshow,Suzy'sposterswereeverywherealloverthehallandallovertheschool,eachonedifferent."Andfinally,"saidtheschoolmaster,"thewinnerinthetalentcompetitionforGrade7isSuzyKhan!"Irealized,atthattimewhenIwaslookingatherexcitedface,thatshehadfinallyfittedin.AnditwasallbecauseofthesimpleactofmysuggestingthatsheshouldshowherarttoMissParker.1.WhatwasSuzylikewhentheauthorfirstsawher?A.Shewastallandfat.B.Shewasshyandsmall.C.Shewasquietandsmart.D.Shewasfriendlyandactive.答案：B。分析：文中提到“Shewasreallysmallforherageof12.Theboysinmyclassoftenlaughedatherabouthersizeandshebecameveryshy.”，说明她又小又害羞，选B。2.HowdidtheauthorhelpSuzyfitin?A.ByshowingSuzy'sdrawingstotheartteacher.B.ByinvitingSuzytojointhetalentshow.C.ByhelpingSuzydrawsomeposters.D.BymakingaperfectcopyofSuzy'sdrawing.答案：A。分析：根据文中“Itookhertoseetheartteacher,MissParker,andshowedherwhatSuzyhaddrawn.”以及后面的情节可知，作者把苏西的画给美术老师看从而帮助她融入，选A。3.WhydidSuzywinthecompetition?A.Becausetheschoolmasterlikedher.B.Becauseherpostersweredifferent.C.Becausesheworkedhardfortheshow.D.Becauseherposterswereeverywhere.答案：B。分析：文中提到“Suzy'sposterswereeverywherealloverthehallandallovertheschool,eachonedifferent.”，说明她的海报各不相同，这是她获胜的原因，选B。数学部分（非数量关系题，主要是概念理解等）单项选择题1.Whichofthefollowingisarationalnumber?A.$\sqrt{2}$B.$\pi$C.$\frac{22}{7}$D.$\sqrt{5}$答案：C。分析：有理数是整数（正整数、0、负整数）和分数的统称，$\frac{22}{7}$是分数，属于有理数；$\sqrt{2}$、$\sqrt{5}$、$\pi$是无理数，选C。2.Theslopeofahorizontallineis____.A.0B.1C.undefinedD.1答案：A。分析：水平直线上任意两点的纵坐标相同，根据斜率公式$k=\frac{y_2y_1}{x_2x_1}$，$y_2y_1=0$，所以斜率为0，选A。3.Whichofthefollowingisalinearfunction?A.$y=x^2+1$B.$y=\frac{1}{x}$C.$y=2x+3$D.$y=\sqrt{x}$答案：C。分析：线性函数的一般式是$y=kx+b$（$k$，$b$为常数，$k≠0$），$y=2x+3$符合线性函数形式，选C。4.Thedomainofthefunction$y=\sqrt{x3}$is____.A.$x\geq3$B.$x>3$C.$x\leq3$D.$x<3$答案：A。分析：二次根式有意义的条件是被开方数为非负数，即$x3\geq0$，解得$x\geq3$，选A。5.Ifatrianglehasanglesof$30^{\circ}$,$60^{\circ}$,and$90^{\circ}$,andtheshortestsideis5,thenthelengthofthehypotenuseis____.A.5B.10C.$5\sqrt{3}$D.$\frac{5\sqrt{3}}{3}$答案：B。分析：在$30^{\circ}$，$60^{\circ}$，$90^{\circ}$的直角三角形中，$30^{\circ}$所对的边是最短边，斜边是$30^{\circ}$所对边的2倍，已知最短边为5，则斜边为10，选B。简答题1.Explainthedifferencebetweenafunctionandarelation.Answer:Arelationisasetoforderedpairs.Afunctionisaspecialtypeofrelationwhereforeachinputvalue(xvalue),thereisexactlyoneoutputvalue(yvalue).Inotherwords,inafunction,nosingleinputcanbemappedtomorethanoneoutput,whilearelationmayhaveaninputthatisassociatedwithmultipleoutputs.历史部分单项选择题1.TheIndustrialRevolutionfirststartedin____.A.theUnitedStatesB.GermanyC.FranceD.theUnitedKingdom答案：D。分析：工业革命首先在英国发生，18世纪60年代，哈格里夫斯发明珍妮纺纱机标志着工业革命开始，选D。2.TheDeclarationofIndependencewasadoptedin____.A.1773B.1774C.1775D.1776答案：D。分析：1776年7月4日，大陆会议通过了《独立宣言》，宣告北美13个殖民地脱离英国独立，选D。3.ThefalloftheBerlinWallin1989wasasignificanteventintheprocessof____.A.theColdWarB.EuropeanintegrationC.theendoftheSovietUnionD.Germanreunification答案：D。分析：柏林墙的倒塌为德国统一创造了条件，1990年德国实现统一，选D。4.TheancientEgyptiancivilizationiswellknownforits____.A.pyramidsB.ColosseumC.ParthenonD.Acropolis答案：A。分析：金字塔是古埃及文明的象征；罗马斗兽场（Colosseum）是古罗马文明的代表；帕特农神庙（Parthenon）和雅典卫城（Acropolis）是古希腊文明的标志，选A。5.TheHundredYears'Warwasfoughtbetween____.A.EnglandandFranceB.EnglandandSpainC.FranceandSpainD.GermanyandFrance答案：A。分析：百年战争是英法两国于1337年1453年间的战争，选A。简答题1.BrieflydescribethemaincausesofWorldWarI.Answer:ThemaincausesofWorldWarIinclude:(1)Imperialism:Competitionamongmajorpowersforcoloniesandresourcesledtotensions.(2)Nationalism:Strongnationalisticfeelingsindifferentcountries,especiallyintheBalkans,contributedtoconflicts.(3)Alliances:Theformationoftwomajoralliancesystems,theTripleEntente(France,Russia,andtheUK)andtheCentralPowers(Germany,AustriaHungary,andItalyinitially),meantthatalocalconflictcouldquicklyescalateintoalargescalewar.(4)TheassassinationofArchdukeFranzFerdinandofAustriaHungaryinSarajevoin1914wastheimmediatetriggerthatsetoffthewar.物理部分单项选择题1.Theunitofelectriccurrentis____.A.voltB.ampereC.ohmD.watt答案：B。分析：安培（ampere）是电流的单位；伏特（volt）是电压单位；欧姆（ohm）是电阻单位；瓦特（watt）是功率单位，选B。2.WhenanobjectisinfreefallnearthesurfaceoftheEarth,itsaccelerationisapproximately____.A.$0m/s^2$B.$5m/s^2$C.$9.8m/s^2$D.$15m/s^2$答案：C。分析：在地球表面附近，物体做自由落体运动时，加速度约为$9.8m/s^2$，选C。3.AccordingtoOhm'slaw,therelationshipbetweenvoltage(V),current(I),andresistance(R)is____.A.$V=IR$B.$I=VR$C.$R=VI$D.$V=\frac{I}{R}$答案：A。分析：欧姆定律的表达式是$V=IR$，选A。4.Aconvexlenscan____lightrays.A.divergeB.convergeC.reflectD.absorb答案：B。分析：凸透镜对光线有会聚作用，凹透镜对光线有发散作用，选B。5.Theworkdonebyaforceiscalculatedbytheformula$W=Fd\cos\theta$,where$\theta$istheanglebetween____.A.theforceandthedisplacementB.theforceandthevelocityC.thedisplacementandthevelocityD.theforceandtheacceleration答案：A。分析：在功的计算公式$W=Fd\cos\theta$中，$\theta$是力$F$和位移$d$的夹角，选A。简答题1.Explaintheprincipleofelectromagneticinduction.Answer:Electromagneticinductionistheprocessofgeneratinganelectromotiveforce(emf)oranelectriccurrentinaconductorwhenthereisachangeinthemagneticfluxthroughtheconductor.Thiscanbeachievedbymovingaconductorinamagneticfieldorbychangingthemagneticfieldaroundastationaryconductor.AccordingtoFaraday'slawofelectromagneticinduction,theinducedemfisproportionaltotherateofchangeofmagneticflux.化学部分单项选择题1.Thechemicalsymbolforgoldis____.A.AgB.AuC.CuD.Fe答案：B。分析：Au是金的化学符号；Ag是银；Cu是铜；Fe是铁，选B。2.ThepHofaneutralsolutionis____.A.0B.7C.14D.1答案：B。分析：pH=7的溶液呈中性，pH<7溶液呈酸性，pH>7溶液呈碱性，选B。3.Theprocessofconvertingasoliddirectlyintoagasiscalled____.A.meltingB.freezingC.sublimationD.condensation答案：C。分析：升华是指物质从固态直接变成气态的过程；熔化是固态变液态；凝固是液态变固态；冷凝是气态变液态，选C。4.Whichofthefoll