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Jimmy is an automotive mechanic, but he lost his job a few months ago. He has a good heart, but alw...
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高三下学期英语《》真题及答案
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Jimmyisanautomotivemechanicbuthelosthisjobafewmont
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objective
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Jimmyisanautomotivemechanicbuthelosthisjobafewmont
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阅读细节阅读下面的短文从每题所给的A.B.C.三个选项中选出最佳选项回答问题或完成句子Jimmyis
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Jimmyisanautomotivemechanicbuthelosthisjobafewmont
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如图抛物线y=ax²+6axa为常数a＞0与x轴交于OA两点点B为抛物线的顶点点D的坐标为t0-3＜t＜0连接BD并延长与过OAB三点的⊙P相交于点C．1求点A的坐标2过点C作⊙P的切线CE交x轴于点E．①如图1求证CE=DE②如图2连接ACBEBO当a=∠CAE=∠OBE时求-的值．
把一个鸡蛋分别放入盛满不同浓度盐水的甲乙两烧杯中如图从甲杯中溢出盐水的质量是40g从乙杯中溢出盐水的质量是50g可知鸡蛋的质量是g甲乙两杯中盐水密度的比值0.8选填＞或=或＜
1已知下列分子或离子在酸性条件下都能氧化KI自身发生如下变化 H2O2→H2OIO→I2MnO→Mn2+HNO2→NO 如果分别用1mol这些物质氧化足量的KI得到I2的物质的量分为 2铁和某浓度的硝酸反应时消耗铁和硝酸的物质的量之比为825且铁转化为等物质的量的Fe2+和Fe3+则硝酸的唯一还原产物可能为．
如图所示容器中间用隔板分成左右两部分底面积之比为23隔板下部有一圆孔用薄橡皮膜封闭圆孔直径可忽略不计橡皮膜两侧压强不同时其形状为一凹面．小明在左侧中加入水右侧容器内倒入另一种液体发现当橡皮膜变平时右侧液面低于左侧则水对容器底的压强液体对容器底的压强他将物体A放入另一种液体中处于漂浮放入水中沉底两侧液体对容器底的压强变化量相等则物体A的密度为kg/m³．
有一密闭的圆台形容器如图所示内装一定质量的液体如果把它倒置液体对容器底面的压力压强选填变大或变小或不变．
Morestudentsthaneverbeforearetakingagap﹣year间隔年beforegoingtouniversity.Itusedtobecalledtheyearoffbetweenschoolanduniversity.Thegap﹣yearphenomenonoriginated起源withthemonthsleftovertoOxbridgeapplicantsbetweenentranceexamsinNovemberandthestartofthenextacademicyear. Thisyear25310studentswhohaveacceptedplacesinhighereducationinstitutionshaveputofftheirentryuntilnextyearaccordingtostatisticsonuniversityentranceprovidedbyUniversityandCollegeAdmissionsSerbiceUCAS. Thatisarecord14.7%increaseinthenumberofstudentstakingagapyear.TonyHigginsfromUCASsaidthatthestatisticsaregoodnewsforeveryoneinhighereducation.Studentswhotakeawell﹣plannedyearoutaremorelikelytobesatisfiedwithandcompletetheirchosencourse.Studentswhotakeagapyearareoftenmorematureandresponsiblehesaid. Butnoteveryoneishappy.OwainJamesthepresidentoftheNationalUnionofStudentsNUSarguedthattheincreaseisevidenceofstudenthadship﹣youngpeoplearebeingforcedintoearningmoneybeforefinishingtheireducation.Newstudentsarenowawarethattheyarelikelytoleaveuniversityupto￡15000indebt.Itisnotsurprisingthatmoreandmorestudentsaretakingagapyeartoearnmoneytosupporttheirstudyforthedegree.NUSstatisticsshowthatover40%ofstudentsareforcedtoworkduringtermtimeandthefigureincreasesto90%duringvacationperiodshesaid. 29.Whatdowelearnaboutthegapyearfromthetext A.Itisflexibleinlength. B.Itisatimeforrelaxation. C.Itisincreasinglypopular. D.Itisrequiredbyuniversities. 30.AccordingtoTonyHigginsstudentstakingagapyear. A.arcbetterpreparedforcollegestudies B.knowalotmoreabouttheirfuturejobs C.aremorelikelytoleaveuniversityindebt D.haveabetterchancetoentertopuniversities 31.HowdoesOwainJamesfeelaboutthegap﹣yearphenomenon A.He'spuzzled. B.He'sworried. C.He'ssurprised. D.He'sannoyed. 32.WhatwouldmoststudentsdoontheirvacationaccordingtoNUSstatistics A.Attendadditionalcourses. B.Makeplansforthenewterm. C.Earnmoneyfortheireducation. D.Preparefortheirgraduatestudies.
为了测量某石块的密度实验中学物理兴趣活动组的同学利用一只玻璃杯一个量筒和适量的水做了如下实验1在量筒内倒入60cm³的水．2将玻璃杯开口向上漂浮在量筒内的水面上如图甲所示此时与84cm³刻度线相平．3将石块放入玻璃杯中让玻璃杯漂浮在量筒内的上如图乙所示此时与100cm³刻度线相平．4取出玻璃杯将石块沉没在量筒内的水中如图丙所示此时与64cm³刻度线相平．根据以上数据可知乙图中烧杯受浮力N石块的密度是kg/m³
Mycolortelevisionhasgivenmenothingbutaheadache.IwasabletobuyitalittleoverayearagobecauseIhadmyrelativesgivememoneyformybirthdayinsteadofalotofclothesthatwouldn'tfit.IletasalesclerkfoolmeintobuyingadiscontinuedmodelIrealizedthisadaylatewhenIsawnewspaperadvertisementsforthesetatseventy﹣fivedollarslessthanIhadpaidThesetworkedsobeautifullywhenIfirstgotithomethatIwouldkeepitonuntilstationssignedoffforthenightFortunatelyIdidn'tgotanychannelsshowingall﹣nightmoviesorIwouldneverhavegottentobed. ThenIstarteddevelopingaproblemwiththesetthatinvolvedstatic静电noise.Forsomereasonwhencertainshowsswitchedintoacommercialaloudnoisewouldsoundforafewseconds.GraduallythisnoisebegantoappearduringashowandtogetridofitIhadtochangetoanotherchannelandthenchangeitback.SometimesthistechniquewouldnotworkandIhadtopickupthesetandshakeittoremovethesound.Iactuallybegantobuildupmyarmmuscles肌肉shakingmyset. WhenneitherofthesemethodsremovedthestaticnoiseIwouldsithelplesslyandwaitforthenoisetogoaway.AtlastIendeduphittingthesetwithmyfistanditstoppedworkingaltogether.Mytriptotherepairshopcostme$62andthesetisworkingwellnowbutIkeepexpectingmoretrouble. 21.WhydidtheauthorsayhewasfooledintobuyingtheTVset A.Hegotanoldermodelthanhehadexpected. B.Hecouldn'treturnitwhenitwasbroken. C.Hecouldhaveboughtitatalowerprice. D.Hefailedtofindanymovieshowsonit. 22.WhichofthefollowingcanbestreplacethephrasesignedoffinParagraph1 A.endedalltheirprograms B.providedfewerchannels C.changedtocommercials D.showedall﹣nightmovies 23.HowdidtheauthorfinallygethisTVsetworkingagain A.Byshakingandhittingit. B.Byturningitonandoff. C.Byswitchingchannels. D.Byhavingitrepaired. 24.Howdoestheauthorsoundwhentellingthestory A.Curious B.Anxious C.Cautious D.Humorous.
有下列三个反应①Cl2少量+FeI2═FeCl2+I2②2Fe2++Br2＝2Fe3++2Br﹣ ③Co2O3+6HCl＝2CoCl2+Cl2↑+3H2O 根据上述反应回答问题 1①②③中的氧化产物分别是． 2Co2O3Cl2Fe3+Br2I2的氧化性由强到弱的顺序为． 3在反应③中生成1molCl2时有molHCl被氧化． 4根据反应①②判断Cl2+FeBr2═FeCl2+Br2能否发生．
Yourhousemayhaveaneffectonyourfigure.Expertssaythewayyoudesignyourhomecouldplayaroleinwhetheryoupackonthepoundsorkeepthemoff.Youcanmakeyourenvironmentworkforyouinsteadofagainstyou.Herearesomewaystoturnyourhomeintopartofdietplan. Openthecurtainsandturnupthelights.Darkenvironmentsaremorelikelytoencourageovereatingforpeopleareoftenlessself﹣consciouswhenthey'reinpoorlylitplaces﹣andsomorelikelytoeatlotsoffood.Ifyourhomedoesn'thaveenoughwindowlightgetmorelampsandfloodtheplacewithbrightness. Mindthecolors.Researchsuggestswarmcolorsfuelourappetites胃口.Inonestudypeoplewhoatemealsinablueroomconsumed消耗33percentlessthanthoseinayelloworredroom.Warmcolorslikeyellowmakefoodappearmoreappetizingwhilecoldcolorsmakeusfeellesshungry.Sowhenit'stimetorepaintgoblue. Don'tforgettheclock﹣﹣﹣ortheradio.Peoplewhoeatslowlytendtoconsumeabout70fewercalories卡路里permealthanthosewhorushthroughtheirmeals.Beginkeepingtrackofthetimeandtrytomakedinnerlastatleast30minutes.Andwhileyou'reatitactuallysitdowntoeat.Ifyouneedsomehelpslowingdownturnonrelaxingmusic.Itmakesyoulesslikelytorushthroughameal. Downsizethedishes.Bigservingbowlsandplatescaneasilymakeusfat.Weeatabout22percentmorewhenusinga12﹣inchplateinsteadofa10﹣inchplate.Whenwechoosealargespoonoverasmalleronetotalintake摄入jumpsby14percent.Andwe'llpourabout30percentmoreliquidintoashortwideglassthanatallskinnyglass. 1.Thetextisespeciallyhelpfulforthosewhocareabout. A.theirhomecomforts B.theirbodyshape C.housebuying D.healthydiets 2.Ahomeenvironmentinbluecanhelppeople. A.digestfoodbetter B.regaintheirappetites C.burnmorecalories D.reducefoodintake 3.Whatarepeopleadvisedtodoatmealtimes? A.Fatquickly. B.Playfastmusic. C.Usesmallerspoons. D.Turndownthelights. 4.Whatcanbeasuitabletitleforthetest? A.IsYourHouseMakingYouFat? B.WaysofServingDinner C.EffectsofSelf﹣Consciousness D.IsYourHomeEnvironmentRelaxing?
Theadobedwellings土坯房61buildbythePuebloIndiansoftheAmericanSouthwestareadmiredbyeven62mostmodernofarchitectsandengineers.Inadditiontotheirsimplebeautywhatmakestheadobedwellingsadmirableistheir63abletoairconditionahousewithout64useelectricequipment.Wallsmadeofadobetakeintheheatfromthesunonhotdaysandgiveoutthatheat65slowduringcoolnightsthuswarningthehouse.Whenanewdaybreaksthewallshavegivenuptheirheatandarenowcoldenough66coolthehouseduringthehotday67thesametimetheywarmupagainforthenightThiscycle68godayafterdayThewallswarmupduringthedayandcooloffduringthenightandthusalwaysatimelyoffset抵消fortheoutsidetemperatures.As69naturearchitectsthePuebloIndiansfiguredoutexactly70thicktheadobewallsneededtobetomakethecycleworkonmostdays. 61. 62. 63. 64. 65. 66. 67. 68. 69. 70.
按要求书写下列反应的化学或离子方程式． 1在NaOH的环境中NaI与Cl2反应每1molNaI完全反应转移6mol电子写出反应的化学方程式． 2等物质的量FeSO4和Na2O2反应生成FeOH3和其他物质该反应的离子方程式是． 3H2O2和碱性KMnO4溶液反应变为墨绿色溶液0.25molKMnO4完全反应转移电子的物质的量为0.25mol．该反应的离子方程式是． 4FeS2在有水存在的条件下用氧气氧化反应之后得到强酸性溶液低温下从该强酸性溶液中可得到FeSO4该氧化还原反应的离子方程式是． 5在酸性条件下NaClO加到含Fe2+的溶液中溶液从浅绿色变成黄色反应的离子方程式为． 6在一定条件下将12gFeS2放入过量的浓硝酸中反应过程中转移1.5mol电子该反应的离子方程式是． 7取FeSO4溶液加入淀粉﹣KI溶液和H2O2溶液呈蓝色并有红褐色沉淀生成当消耗2molI﹣时共转移3mol电子该反应的化学方程式是．
下列说法不正确的是． 1乙醛分子的比例模型2铝离子的结构示意图 3次氯酸的结构式H﹣OCl4甲基的电子式 5硫的原子结构示意图6NH4Cl的电子式 7原子核内有8个中子的氧原子O．
如图所示是中国航母瓦良格号训练时的图片．当飞机飞回航母后
某小组取一定质量的FeSO4固体利用下图装置进行实验． 已知SO2熔点﹣72℃沸点﹣10℃SO3熔点16.8℃沸点44.8℃． 1实验③反应的离子方程式是． 2分解过程除产生使木条复燃的气体外仅由A中固体颜色变化推测还一定有气体依据是． 3实验④反应的离子方程式是． 4某同学依据B中的现象认为FeSO4分解一定有SO3生成．你认为是否正确原因是用必要的文字和化学方程式解释．
40℃时等质量的两份饱和石灰水①冷却至10℃②加少量CaO并保持温度仍为40℃．回答下列问题填“增大”“减小”或“不变” 1CaOH2的溶解度①②． 2溶液的质量①②． 3溶质的质量分数①②． 4溶液中Ca2+的数目①②．
如图所示是探究物体动能的大小与哪些因素有关的实验装置实验中让钢球从斜面上某个高度由静止沿斜面滚下在底部与静止在水平面上的木块发生碰撞木块沿水平向右运动直至停止．1实验中是通过观察来判断钢球的动能大小．2让同一钢球从斜面的不同高度由静止开始滚下目的是探究钢球的动能大小与的关系．3木块最终会停下来的主要原因是4如果水平面绝对光滑则选填能或不能得出正确结论
Wheredoyougowhenyouwanttolearnsomething?Afriend?Atutor?Theseareall41acesoflearning.Butitmaywellbethatthelearningyoureallywant42somewhereelseinstead.Ihadthe43ofseeingthisfirsthandona44. Mydaughterplaysonarecreationalsoccerteam.Theydidverywellthisseasonandso45atournamentwhichnormallywasonlyformoreskilledclubteams.Thisledtosome46experiencesonSaturdayastheyplayedagainstteams47trained.Throughthefirsttwogamesher48didnotgetonseriousshotongoal.AsapparentI49seeingmydaughterplayingherbest50stilldefeated. ITseemedthatsomethingclickedwiththe51betweenSaturdayandSunday.Whenthey52fortheirSundaygametheywere53different.Theyhadbegunintegrate融合thekindsofplayandteamworktheyhad54thedaybeforeintotheir55.Theyplayedaggressivelyand56scoredagoal. It57methatplayingagainsttheotherteamwasagreat58momentforallthegirlsontheteam.Ithinkitisageneralprinciple.59isthebestteacher.Thelessonstheymaynotbe60whattheywouldhavegotteninschool.Butarecertainlymorepersonalandmeaningfulbecausetheyhadtoworkthemoutontheirown. 41.A.public B.traditional C.official D.special 42.A.passes B.works C.lies D.ends 43.A.dream B.idea C.habit D.chance 44.A.trip B.holiday C.weekend D.square 45.A.won B.entered C.organized D.watched 46.A.painful B.strange C.common D.practical 47.A.less B.poorly C.newly D.better 48.A.fans B.tutors C.class D.team 49.A.imagined B.hated C.avoided D.missed 50.A.if B.or C.but D.as 51.A.girls B.parents C.coaches D.viewers 52.A.dressed B.showedup C.madeup D.planned 53.A.slightly B.hardly C.basically D.completely 54.A.seen B.known C.heard D.read 55.A.styles B.training C.game D.rules 56.A.even B.still C.seldom D.again 57.A.confused B.struck C.reminded D.warned 58.A.touching B.thinking C.encouraging D.learning 59.A.Experience B.Independence C.Curiosity D.Interest 60.A.harmfulto B.mixedwith C.differentfrom D.appliedto.
根据相似多边形的定义我们把四个角分别相等四条边成比例的两个凸四边形叫做相似四边形．相似四边形对应边的比叫做相似比．1某同学在探究相似四边形的判定时得到如下三个命题请判断它们是否正确直接在横线上填写真或假．①条边成比例的两个凸四边形相似命题②三个角分别相等的两个凸四边形相似命题③两个大小不同的正方形相似．命题2如图1在四边形ABCD和四边形A1B1C1D1中∠ABC=∠A1B1C1∠BCD=∠B1C1D1求证四边形ABCD与四边形A1B1C1D1相似．3如图2四边形ABCD中AB∥CDAC与BD相交于点O过点O作EF∥AB分别交ADBC于点EF．记四边形ABFE的面积为S1四边形EFDE的面积为S2若四边形ABFE与四边形EFCD相似求的值．
下列各组中两种气体的原子数一定相等的是． 1温度相同体积相同的O2和N2． 2质量相等密度相等的N2和C2H4． 3体积相等密度相等的CO和C2H4． 4压强相同体积相同的N2和O2． 5同质量不同密度的N2和CO． 6同体积同密度的C2H4和C4H8．
Trainingforamarathonrequirescarefulpreparationandsteadygradualincreasesinthelengthoftheruns.36buythebest﹣fittingbest﹣builtrunningshoesyoucanfind.Noonecansaywhichbrandwillworkbestforyouorfeelbestonyourfeetsoyouhavetorelyonyourexperienceandonthefeelofeachpairasyoushop.Whenyouhavefoundshoesthatseemrightwalkinthemforafewdaystodouble﹣checkthefit.37.Asalwaysyoushouldstretch伸展atleasttenminutesbeforeeachruntopreventinjuries. Duringthefirstweekdonotthinkaboutdistancebutrunfiveminuteslongereachday.38itiswisetotakeadayofftorest.Butduringthenextweeksetagoalofatleastamileandahalfperrun.39.Aftertwoweeksstarttimingyourself.40.Dependingonthekindofraceyouplantoenteryoucansetupatimetablefortheremainingweeksbeforetherace. A.Aftersixdays B.Foragoodmarathonrunner C.Beforeyoubeginyourtraining D.Witheachdayincreasethedistancebyahalfmile E.Iftheystillfeelgoodyoucanbeginrunninginthem F.Timespentforpreparationraisesthequalityoftraining G.Nowyouarereadytofigureoutagoalofimprovingdistanceandtime. 36. 37. 38. 39. 40.
足量的SO2通入下列溶液中后是否产生沉淀能产生沉淀的说明沉淀的成分．
如图正方形ABCD点EF分别在ADCD上且DE=CFAF与BE相交于点G．1求证BE=AF2若AB=4DE=1求AG的长．
一个空的塑料药瓶瓶口扎上橡皮膜竖直地浸入水中一次瓶口朝上一次瓶口朝下这两次药瓶在水中的位置相同如图所示．可以看到橡皮膜都向内凹图中橡皮膜向内凹得多．若在进行以上实验时甲塑料药瓶能刚好悬浮在水中则换成乙种情况时塑料药瓶会填上浮下沉或悬浮．
“远征号”潜水艇在东海执行完任务后返回到长江某基地请在图中画出潜水艇加速上浮过程中所受重力和浮力的示意图．
下列物质中①金刚石②氨气③氧气④水⑤CO2⑥SiO2⑦SO2⑧Fe⑨冰⑩碘蒸气⑪C3H8⑫液氯⑬液氨⑭NaOH 1由分子构成的是 2由原子构成的是 3由离子构成的是．
如图是中国第一艘航母—辽宁舰满载时吃水深度为10m排水量为7×104t．已知ρ海水=1.0×103kg/m3求1辽宁舰满载时受到的浮力是多少2辽宁舰满载时舰底0.5m²的面积受到海水的压力是多少
ChooseYourOne﹣DayTours TourA﹣Bath&StonchengeincludingentrancefeestotheancientRomanbathroomsandStonehenge﹣￡until26Marchand￡39thereafter. Visitthecitywithover2000yearsofhistoryandBathAbbeytheRoyalCrescentandtheCostumeMuseum.Stonehengeisoneoftheworld'smostfamousprehistoricmonumentsdatingbackover5000years. TourB﹣Oxford&StratfordincludingentrancefeestotheUniversityStMary'sChurchTowerandAnneHathaway'shouse一32until12Marchand36thereafter. OxfordIncludesaguidedofEngland'soldestuniversitycityandcolleges.Lookoverthecityofdreamingspires尖顶formStMary'sChurchTower.StratfordIncludesaguidedtourexploringmuchoftheShakespearewonder. TourC﹣WindsorCastle&HamptonCourtincludingentrancefeestoHamptonCourtPalace﹣﹣£34untilMarchand£37thereafter. IncludesaguidedtourofWindsorandHamptonCourtHenryMill'sfavouritepalace.FreetimetovisitWindsorCastleentrancefeesnotincluded.With500yearsofhistoryHamptonCourtwasoncethehomeoffourKingsandoneQueen.Nowthisformerroyalpalaceisopentothepublicasamajortouristattraction.Visitthepalaceanditsvarioushistoricgardenswhichincludethefamousmaze迷宫whereitiseasytogetlost! TourD﹣CambridgeincludingentrancefeestotheTowerofSaintMarytheGreat﹣£33.until18Marchand£37thereafter. IncludesaguidedtourofCambridgethefamousuniversitytownandthegardensofthe18thcentury. 33.WhichtourwillyouchooseifyouwanttoseeEngland'soldestuniversitycity? A.TourAB.TourBC.TourCD.TourD 34.Whichofthefollowingtourschargesthelowestfeeon17March? A.WindsorCastle&HamptonCourt. B.Oxford&Stratford C.Bath&Stonehenge. D.Cambridge. 35.WhyisHamptonCourtamajortouristattraction? A.Itusedtobethehomeofroyalfamilies. B.Itusedtobeawell﹣knownmaze C.ItistheoldestpalaceinBritain D.Itisaworld﹣famouscastle.
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