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已知椭圆的焦距与椭圆的矩轴长相等，且W与Ω的长轴长相等，这两个椭圆在第一象限的交点为A，直线l与直线OA（O为坐标原点）垂直，且l与W交于M，N两点．（1）求W的方程；（2）求△MON的面积的最大值...
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高三上学期数学《》真题及答案
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曲线=1与曲线=1k＜9的
长轴长相等
短轴长相等
离心率相等
焦距相等
椭圆和有
相等的焦距
等长的长轴
相等的离心率
等长的短轴
椭圆0＜k＜9的关系为
有相等的长轴
有相等的短轴
有相同的焦点
有相等的焦距
曲线与曲线的
实轴长相等
虚轴长相等
离心率相等
焦距相等
离心率相等
虚半轴长相等
实半轴长相等
焦距相等
若实数k满足0
焦距相等
实半轴长相等
虚半轴长相等
离心率相等
若实数满足则曲线与曲线的
实半轴长相等
虚半轴长相等
离心率相等
焦距相等
已知椭圆则
与
顶点相同
与
长轴长相同
与
短轴长相同
与
焦距相等
实轴长相等
虚轴长相等
离心率相等
焦距相等
已知椭圆长轴长短轴长和焦距成等差数列则该椭圆的离心率是.
已知0＜θ＜则双曲线C.1＝1与C.2＝1的.
实轴长相等
虚轴长相等
离心率相等
焦距相等
曲线＝1与曲线＝1k＜9的
长轴长相等
短轴长相等
离心率相等
焦距相等
曲线与曲线k
长轴长相等
短轴长相等
离心率相等
焦距相等
已知0
实轴长相等
虚轴长相等
离心率相等
焦距相等
曲线＝1与曲线＝1k＜9的
长轴长相等
短轴长相等
离心率相等
焦距相等
已知则双曲线与的
实轴长相等
虚轴长相等
焦距相等
离心率相等
若实数k满足0
曲线与曲线k
长轴长相等
短轴长相等
离心率相等
焦距相等
已知离心率为的椭圆的中心在原点焦点在x轴上.双曲线以椭圆的长轴为实轴短轴为虚轴且焦距为2.求椭圆及双
曲线=1与曲线=1k＜9的
长轴长相等
短轴长相等
离心率相等
焦距相等
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10分 HelpingStudentsFindTheirWritingVoices Oneofthemostfrustratingthingsforwritingteachersisreadingpapersthatsimplylackstyle.Whenalloftheresearchhasbeencompletedandallofthesentencesarestructuredwellbutthepaperstilllackssomepizzazz活力itcanbeboringtograde.Ifyouaresearchingforwaystohelpyourstudentsfindtheirvoiceswhynottrymakingstudentsthemselvesthetopicofthewriting?1Whoareyou? OneofthemostdifficultquestionsforstudentstoanswerisWhoareyou?2Indoingthisthroughwritingstudentswillstarttoseetheirpersonalitiesdifferentlyandhopefullybeabletoaddafeaturetotheirwriting. Dearxxx 3Encouragethemtowritetoafamouspersonthey'vealwaysadmiredandthentheonetheyabsolutelyhate.Explorehowtheirlanguagechangesbetweenthetwoletters.Whenstudentsknowtheiraudiencesitismucheasierforthemtoaddthekindofpersonalitytheiraudiencewantstosee. 4Whenstudentswriteaboutwhatmattersmosttothemtheywilloftengiveyouthebestwritingyou'veeverseen.You'llgetthosewhenyouaskquestionsthathithome.Whenstudentshavesomethingtosayaboutagiventopicitcanbeeasierforthemtogettheirideasdownandthenworkontheirwritingstyle. Frommindtopaper. Themostvaluablelessonstudentscanlearnistowritefirstandeditlater.Havestudentswriteforfiveminutesabouttheirtopics.Iftheycangettheirideasdownonpaperthat's90%ofthebattle.5Thiscanhelpthemrealizethatoncetheyhavetheideasdowntherestisjustfinetuning微调.Oncetheyhavethisskillmasteredit'seasyforthemtostartaddingtheirownpersonalvoicestotheirpapers. A.Whatmatterstoyou? B.Whatstyleistaughtinclass? C.Whentheywriteaboutthemselvesstudents'voicesoftenshinethrough. D.Writinglettersisagreatwayforstudentstoexploretheirwritingstyle. E.Haveyourstudentsexplorewhotheyareandwhatmakesthemunique. F.Voiceisthatmagicalqualitywhichisabletomakeacreativewritingideasing! G.Afterthathavethemedittheseideasintoareallystrongintroductoryparagraph. 1. 2. 3. 4. 5.
30分OElizabethClaydecidedtogohomeandspendtheholidaywithherparents.Thenextdayshedroveheroldcarhomealongtheroad.1shefoundshegotaflat.The22﹣year﹣oldstudent2tostophercarbythesideoftheroadinthewinternightandopenedthetrunk.No3tire. Atthistimeacar4.PaulandDianetoldClayto5themtoaservicestationneartheir6.Theyarrivedtoseethatithadnosuitabletiresto7withhercar.FollowushomesaidPaul. Thecouplecalledaroundtofindatire.No8.Theydecidedtoletherusetheirowncar.HerePaulsaidhandingClaya9ofkeysTakeourcar.We10beusingitovertheholiday. Claywas11.ButI'mgoingallthewaytoSouthCarolinaandI'llbegonefortwoweeksshe12them. WeknowPaulsaid.We'llbe13whenyougetback.Here'sournumberifyouneedto14us. UnabletobelievehereyesClaywatchedasthe15putherluggageintotheircarandthen16heroff.Twoweekslatershe17tofindheroldcarcleanedinsideandoutwiththreenewtiresandtheradio18. Thankyousomuchshesaid.HowmuchdoI19you?OhnoPaulsaidwedon'twantanymoney.It'sour20.Clayrealizedthatwhileitmighthavebeentheirpleasureitwasnowherdutytopassontheirdoontoothersspirit. 1.A.Suddenly B.Finally C.Immediately D.Fortunately 2.A.afforded B.wanted C.managed D.allowed 3.A.spare B.free C.full D.empty 4.A.passed B.stopped C.paused D.started 5.A.help B.push C.take D.follow 6.A.garage B.house C.shop D.hotel 7.A.agree B.match C.go D.deal 8.A.way B.message C.success D.luck 9.A.number B.set C.pair D.chain 10.A.can't B.shouldn't C.mustn't D.won't 11.A.satisfied B.worried C.astonished D.disturbed 12.A.persuaded B.advised C.reminded D.promised 13.A.happy B.here C.away D.busy 14.A.getintouchwith B.keepintouchwith C.beintouchwith D.putintouchwith 15.A.repairmen B.cleaners C.friends D.couple 16.A.sent B.shook C.watched D.drove 17.A.shocked B.happened C.returned D.came 18.A.loaded B.fixed C.tied D.rebuilt 19.A.owe B.lend C.give D.offer 20.A.wish B.job C.duty D.pleasure
分解因式3a3﹣6a2+3a＝．
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计算﹣﹣2﹣4﹣0+6sin45°﹣．
如图是由6个完全相同的小正方体组成的立体图形它的左视图是
化简a-÷的结果是
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如图在四边形ABCD中AB∥DC点E是CD的中点AE＝BE．求证∠D＝∠C．
如图在Rt△AOB中OA＝OB＝4．⊙O的半径为2点P是AB边上的动点过点P作⊙O的一条切线PQ点Q为切点则线段PQ长的最小值为．
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如图在矩形ABCD中AB＝6BC＝8过对角线交点O作EF⊥AC交AD于点E交BC于点F则DE的长是
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8分Tykoonisanonlinewebsitethatallowsyoutoteachyourchildfinancialprinciplesthroughallowancesassignmentoftasksanddailychores.Astheparentyoucanassignacashvaluetothethingsyouwantyourchildtodo.Thenyourchildcangoinacceptthetaskandaddtotheirwishlistofwhattheywouldliketopurchasewiththemoneythattheyearn. Let'sstartwiththeparentsideofthings.Theparentmustbetheonetosetuptheaccount.Yousimplyenteryourinformationandyourchild'sinformationtogetstarted.Youarethenabletoassignallowanceamountstoyourchild. Thenyoucanaddtasksforyourchildtoacceptandlinkthemtoeithertheirweeklyallowanceorapre﹣determinedamount.Yourchildisthenabletoacceptordeclinetheirtasks.Theycanseehowmucheachtaskearnshowoftentheyneedtodoitandwhattheywillgetiftheydo!Theycanadditemsthattheyareworkingtowardearningandcanevenearnnon﹣cashincentivessuchasextraTVtimeorstayinguplate! Tykoonisagreatwaytostartteachingyourchildaboutresponsibilityandfinancialprinciplesinfunandsafeway.Throughthecreationoftheirownprofileandtheabilitytoacceptordeclinetaskstheyaretaughttheskillsthattheywillneedlaterinlifewhentheyaremanagingtheirownbudgets!Soheadoverandsignupforafreeaccounttodayandwatchyourchildgetexcitedaboutdoingtheirchores! AndrightnowasaspecialrewardifyoushareTykoonwithyourfriendsandhavefivefriendssignupandstayactiveformorethanamonthyou'llearna＄25Amazon.comgiftcard!Sogetyourchildenrolled注册tellyourfriendsandlet'sstartteachingallourkidsabouttheimportantfinancialprinciplestoday! 1.Thepurposeofthetextisto. A.makeanadvertisement B.shareteachingexperience C.describeanonlinewebsite D.presentawayofmakingmoney 2.WhatcankidslearnfromTykoon? A.Theabilitytomanagetheirbudgets. B.Theresponsibilitytododailychores. C.Theskillstoearntheirownliving. D.Thetrickstoacceptorrefusetasks. 3.Itcanbeinferredfromthelastparagraphthat. A.noparentswillresistthespecialreward B.Amazonisaverypopularwebsite C.Tykoonwantstoattractmorevisitors D.friendsshouldshareinformation 4.Whatisthebesttitleofthetext? A.Tykoon﹣ASafeWaytoManageYourFinancialIssues B.HowtoCreateFunnyTasksforYourKidsontheWebsite C.OpeninganOnlineAccountwiththeHelpofTykoon D.TeachingYourKidsFinancialPrincipleswithTykoon
如图一束光线从点A44出发经y轴上的点C反射后经过点B10则点C的坐标是
8分Breathewaveandsmile.Alongwithmorethan300otherseniorsImarchedintothestadiumontheafternoonofMay10.Theaudienceburstintodeafeningcheers.Thehugestadiumshookwithallthewhistlingandclapping. ItwasasifaHollywoodsuperstarhadwalkedonstage.Andindeedeverysingleseniorthatdaywasastarofthemoment.Eachdeservedit.Theseniorshadbeenpreparingforfouryearsforthisonce﹣in﹣a﹣lifetimemoment﹣thecommencement. SeatedIwaitedanxiouslyfortheopeningaddress.AsaforeignexchangestudentIwasnotabletoreceiveadiploma.HoweverIstillhadthewonderfulfeelingofbeingpartofthings.LiketheothergraduatesIwasdressedinpurplecapandgown. OurprincipalMr.Gloverdeliveredashortwarmgreeting.TheUSnationalanthemfollowedandthenhandsonchestsasolemnPledgeofAllegiance效忠宣誓. Studentswhohadexcelledacademicallygavefarewellspeeches.Thetearsinsomeeyesconvincedmethatmanyhaddeepfeelingsabouttheoccasion.ItwasastheclassmottosaysLifebringsustearssmilesandmemories.Thetearsdry;thesmilesfade;butthememorieslastforever. Thencamethecore核心ofthecommencement.Hundredsofnameswereannounced.Eachgraduatewalkedacrossthestagetoreceivehisorherdiplomafromtheprincipal.Fromthedifferentcheerseachgraduategotwehadthefunnysensethatitwasakindofcompetitionofwhocouldcheertheloudest. Tobehonestthepresentationofdiplomasgotboring.Agirlsittingnexttomeevenstartedyawning.Butitwasn'tboringforthosereceivingthediploma:theywouldtreasurethemomenttheprincipalplacedthesacredbrowndocumentintheirhandsfortherestoftheirlives. Anewpageinthebookofthatperson'slifehadturned.Theywereglimpsingtheirfutures:futuresofchallengehardshipperhapslonelinesstoowhichwouldtakealloftheircourage. 1.What'sthearticlemainlyabout? A.AnAmericangraduationceremony. B.Theopeningceremonyofasportsmeeting. C.Apresentationofcollegediplomas. D.AUScollege'sfarewellparty. 2.AccordingtothetextwhichofthefollowingstatementsabouttheauthorisTRUE? A.Hollywoodsuperstarswenttoattendtheceremony. B.Everysingleseniorbecameasuperstarattheceremony. C.Wheneachgraduategothisorherdiplomatherewerecheers. D.Allgraduateswouldtreasurethediplomafortherestoftheirlives. 3.Therightorderofthefollowingeventsis. a.Diplomaswerepresentedtograduates. b.Studentsgavefarewellspeeches. c.TheUSnationalanthemwasplayed. d.Theprincipalgaveashortwarmspeech. e.Seniorswentintothestadium. A.b﹣c﹣a﹣d﹣e B.b﹣d﹣c﹣e﹣a C.e﹣d﹣b﹣a﹣c D.e﹣d﹣c﹣b﹣a 4.Fromthetextwecaninferthat. A.foreignexchangestudentscouldgetadiploma B.adiplomaguaranteesabrightfuture C.theceremonysymbolizesthebeginningofanewstageinlife D.everyonefeltexcitedatthepresentationofthediploma
10分Youoftenfindsomebodywhoworksaroundyoucomplainingallthetimedon'tyou? 1About70%ofAmericanssaybeingaroundnonstopcomplainerssometimeshasabadinfluenceonthem.Luckilyhereare4tipstohelpformpositivepatterns. 1Self﹣awareness Whenanegativethoughtpopsintoyourmindimmediatelycorrectit.InsteadoftellingyourselfThat'saniceshirtbutIcan'tafforditchangethemessagetoThatwilllookgreatwithmyblackpantswhenIcanaffordit.2 Ofcourseeveryonecomplainssometimes.Butthelessfrequentlyyoucomplainthebetteryouwillfeel. 2Distanceyourself 3Excuseyourselfandgosomewherequietsomewhereoutdoorsinthefreshair.Thinkofsomethingpleasantbeforereturning.Youhavetotakethisseriouslybecausenegativepeoplecanandwillpullyouintothequicksand困境. 3Don'ttrytochangecomplainers Ifyoufindyourselftrappedinagroupofcomplainersinameetingoratasocialeventsimplychoosesilence.Lettheirwordsbounceoffyouwhileyouthinkofsomethingelse.Attemptingtostopthecomplainingcanmakeyouatarget.4IfsomeonesaysIhateMondaysweekendsaretooshorttrytothinkI'mgladIrestedupovertheweekendsoI'mreadytomakesomeimprovementonthatbigproject. 45 WhensomeoneisshoutingatyouangrilythrowtheresponsibilitybackatthembyaskingSowhatdoyouintendtodoaboutit?Inmostcasescomplainersdon'treallywantasolution.Theyjustwanttospeakthemout.Ifyoumakethemawarethattheythemselveshavetofindthesolutionstheywillleaveyoualoneandfindsomeoneelsetocomplainto.Ifsoyouwillbehappy. A.Findsolutions B.Changeresponsibility C.Youhavegotalotofcompany. D.Bydoingthisitwillleadtopositivebehaviors. E.Butyoucanredirectthediscussioninyourownmind. F.Wheneverpossibleescapefromnegativeconversations. G.Youwillneverknowwhattheyaregoingtotalkabout. 1. 2. 3. 4. 5.
已知关于xy的方程组的解满足x+y＝5则k的值为．
15分AsanoldEnglishsayinggoesHonestyisthebestpolicy.Itismorethananoldcliché陈词滥调but1goodwaytoliveyourlife. Firsthonestyisthe2easychoicethatwecanmake.Whenpeoplegetcaughtinliesitalwayscoststhemsomething.Manyrelationshipsaredestroyedbylies. Secondhonestygivesusmuch3free.Manypeoplebelievethatbeinghonestlimitstheminlifebutthatisnottrue.Soonerorlaterthosedishonestpeople4payapricefortheiracts;onthecontrarywhenwearehonestweare5truefree. Ifthereweretwopeople6standbeforeyouapersonwitharecordofbeinghonestandaperson7isknowntobedishonestwhowouldyoubemorelikely8believe?I'msuremostpeoplewouldsidewiththehonestperson.9weliveinthetruthorweliveinlies.Thetruthsetsusfreandliesleaveusinnothingbutmoretroubles.Honestyisachoicethatwemakeeachday.Thechoiceis10you.Whatwillyouchoose? 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
如图在△ABC中AD平分∠BAC交BC于点D∠B＝30°∠ADC＝70°则∠C的度数是
8分AlibabastartedtakingtheleadinChinabyconnectingbigChinesemanufacturerswithbigbuyersacrosstheworld.Itsbusiness﹣to﹣businesssiteAlibaba.comallowedbusinesstobuyalmosteverything.Alibaba'sadvantagewasn'thardtojudge:size.AlibabaisjustbigevenbyChinesestandards.Itsmarketattracts231millionactivebuyers8millionsellers11.3billionordersayear﹣andAlibabaisjustthemiddleman.Itencouragespeopletouseitsmarkets﹣notchargingsmallsellersapercentageofthesale. IfyouwantaquicklookintotheinfluenceofAlibabaondailyChineselifetakemyexperience.ImovedtoBeijingayearagoandquicklygottiredofvisitingsmallstoresacrossthecrowdedpollutedcityof20millionpeopleinsearchofnewelectronicsbathroomfurnishingsandanythingelsemywifewanted.Whatexactlyareyoulookingfor?Whynottryit?myChineseteacheraskedmeoneday.WiththatmywonderfulnewrelationshipwithAlibababegan. Alibaba'soriginalbusiness﹣to﹣businessmodelnowissecondtoconsumerbuying.Chineseretail零售buyingmakesup80%ofAlibaba'sprofitandleadingthatgroupisTaobaowith800millionitemsforsaleandthemostunbelievableselectionofthingsyou'lleverfind.TMall.comisAlibaba'sotherbigsitewhereyoucanfindbrandnamegoodsfromNikeandUnilevernearthelowestprices. WhatIhaveahardtimeexplainingtofriendsandfamilybackintheU.S.ishowChinahasgonebeyondtraditionalshopping﹣big﹣boxretailersespecially﹣infavorofonlinepurchasesonTaobaoandafewothersites.InsmallertownsthanBeijingwherebigretailershavenotyettraveledshoppingonlineisshoppingandshoppingisTaobao. IhavealistofsomeofmyrecentpurchasesonTaobaoforasenseofhowwidethemarketplaceis.Almosteverythingarrivedadayortwoafterorderingwithfreeshipping.I'mnotevenabigbuyerbecauseIneedfriendstohelpmesearchtheChinese﹣languagesite.WhenIwassearchingmypurchasehistoryonmyChineseteacher'siPadwhichhelpsmebuygoodsIlookedthroughwithgreatdifficultyabout10ofherpurchasesforeveryoneofmine. 1.Alibaba'sadvantagemainlyliesin. A.itsbusiness﹣to﹣businessservice B.itsbigsize C.itsnotchargingsmallsellers D.itslowprice 2.Whatcanwelearnfromtheunderlinedsentenceinthepassage? A.Alibabaisofmiddlesizeamongalltheonlinesites. B.Alibabawillcontinuetodevelop. C.Alibabaactsasabridgebetweenthebuyersandsellers. D.Alibabastandsoutasthebestonlinesite. 3.Whatcanbeinferredfromthepassage? A.Alibaba'sbusiness﹣to﹣businessserviceearnsmoremoneythanretail. B.Taobaohasnoobviousadvantageoverothersimilaronlinesites. C.TMall.comprovidesmoreprofitthanTaobao. D.Theauthor'sChineseteacherisalsoanonlinepurchaselover. 4.Whatisthepassagemainlyabout? A.ShoppingonlineinChinaisTaobao. B.Alibabainfluencespeople'sdailypurchaseinChina. C.Shoppingonlinegoesbeyondtraditionalshopping. D.HowtheauthorpurchasesonlineinChina.
8分Raisedinafatherlesshomemyfatherwasextremelytightfistedtowardsuschildren.Hisattitudedidn'tsoftenasIgrewintoadulthoodandwenttocollege.IhadtoridethebuswheneverIcamehome.ThoughthebusstoppedabouttwomilesfromhomeDadnevermetmeeveninseverweather.IfIgrumbledhe'dsayinhisloudestfather﹣voiceThat'swhatyourlegsarefor! Thewalkdidn'tbothermeasmuchasthefearofwalkingalonealongthehighwayandcountryroads.Ialsofeltlessthanvaluedthatmyfatherdidn'tseemconcernedaboutmysafety.Butthatfeelingwascanceledonespringevening. Ithadbeenaparticularlydifficultweekatcollegeafterlonghoursinlabs.Ilongedforhome.WhenthebusreachedthestopIsteppedoffanddraggedmysuitcasetobeginthelongjourneyhome. Arowofhedge树篱edgedthedrivewaythatclimbedthehilltoourhouse.OnceIhadturnedoffthehighwaytostartthelastlapofmyjourneyIalwayshadasenseofrelieftoseethehedgebecauseitmeantthatIwasalmosthome.OnthatparticulareveningthehedgehadjustcomeintoviewwhenIsawsomethinggraymovingalongthetopofthehedgemovingtowardthehouse.UponcloserobservationIrealizeditwasthetopofmyfather'shead.ThenIkneweachtimeI'dcomehomehehadstoodbehindthehedgewatchinguntilheknewIhadarrivedsafely.Iswallowedhardagainstthetears.Hedidcareafterall. Onlatervisitsthatspotofgraybecamemywatchtower.IcouldhardlywaituntilIwascloseenoughtowatchforitssecretmovementabovethegreenery.UponreachinghomeIwouldfindmyfathersittinginnocentlyinhischair.So!Mysonit'syou!he'dsayhisfacelengtheningintopretendedsurprise. IrepliedYesDadit'sme.I'mhome. 1.WhatdoestheunderlinedwordgrumbledinParagraph1probablymean? A.Acceptedhappily. B.Explainedclearly. C.Agreedwillingly. D.Spokeunhappily. 2.Whatmadetheauthorfeelupsetwas. A.thetirednessafterlonghoursinlabs B.thefearofseeingsomethingmoving C.thefeelingofbeinglessthanvalued D.thelonelinessofridingthebushome 3.Theauthor'sfatherwatchedbehindthehedgebecause. A.hewasconcernedabouthisson'ssafety B.hewantedtohelphissonbuildupcourage C.hedidn'twanttomeethissonatthedoorway D.hedidn'tthinkhissonwasoldenoughtowalkalone 4.Whichofthefollowingcanbethebesttitleforthetext? A.MyFather'sSecret. B.MyCollegeLife. C.TerribleJourneyHome. D.RidingBusAlone.
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