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设双曲线C:(a,b>0)的一条渐近线与抛物线y2=x的一个交点为A,若点A到直线的距离大于,则双曲线C的离心率e的取值范围是( )
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高二下学期数学《》真题及答案
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已知双曲线-=1a>0b>0的一条渐近线方程是y=x它的一个焦点与抛物线y2=16x的焦点相同则双曲
已知双曲线.a>0b>0的左顶点与抛物线y2=2px的焦点的距离为4且双曲线的一条渐近线与抛物线的准
设F.是抛物线C.1y2=2pxp>0的焦点点
是抛物线与双曲线C
2
:
(a>0,b>0)的一条渐近线的一个公共点,且AF⊥x轴,则双曲线的离心率为 A. 2
已知抛物线y2=2pxp>0上一点M1m到其焦点的距离为5双曲线x2-=1的左顶点为A.若双曲线的一
设F.是抛物线C.1y2=2pxp>0的焦点点
是抛物线与双曲线C
2
:
(a>0,b>0)的一条渐近线的一个公共点,且AF⊥x轴,则双曲线的离心率为 A.2
已知抛物线y2=2pxp>0上一点M1mm>0到其焦点的距离为5双曲线-y2=1的左顶点为A若双曲线
设双曲线的一条渐近线与抛物线y=x+1只有一个公共点则双曲线的离心率为.
已知双曲线.a>0b>0的左顶点与抛物线y2=2px的焦点的距离为4且双曲线的一条渐近线与抛物线的准
已知抛物线y2=2pxp>0上一点M.1mm>0到其焦点的距离为5双曲线-y2=1的左顶点为A.若双
已知双曲线-=1a>0b>0的左顶点与抛物线y2=2pxp>0的焦点的距离为4且双曲线的一条渐近线与
2
2
4
4
已知双曲线的左顶点与抛物线的焦点的距离为4且双曲线的一条渐近线与抛物线准线的交点坐标为则双曲线的焦距
抛物线y2=2pxp>0上一点M.1mm>0到其焦点的距离为5双曲线的左顶点为A.若双曲线的一条渐近
已知双曲线=1a>0b>0的一条渐近线方程是y=x它的一个焦点与抛物线y2=16x的焦点相同.则双曲
设双曲线=1a>0b>0的一条渐近线与抛物线y=x2+1只有一个公共点则双曲线的离心率为.
5
2017年·上海杨浦区一模若双曲线的一条渐近线为x+2y=0且双曲线与抛物线y=x2的准线仅有一个
已知双曲线-=1a>0b>0的一条渐近线方程是y=x它的一个焦点与抛物线y2=16x的焦点相同则双曲
设F.是抛物线C.1y2=2pxp>0的焦点点
是抛物线与双曲线C
2
:
(a>0,b>0)的一条渐近线的一个公共点,且AF⊥x轴,则双曲线的离心率为 A. 2
已知抛物线y2=2pxp>0与双曲线=1a>0b>0的一条渐近线交于一点M.1m点M.到抛物线焦点的
3
4
设双曲线的一条渐近线与抛物线只有一个公共点则双曲线的离心率等于.
设F.是抛物线C.1y2=2pxp>0的焦点点
是抛物线与双曲线C
2
:
(a>0,b>0)的一条渐近线的一个公共点,且AF⊥x轴,则双曲线的离心率为( D.) A.2
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假如你是李华.最近美国笔友Peter发来电子邮件说他在汉语学习中遇到了困难感到非常着急.请根据下面的写作提纲给他回复一封电子邮件.内容包括 1同情他的处境2给他提出几点建议3希望他情况好转. 注意1.可以适当增加细节以使行文连贯2.词数100左右. 3.开头和结尾已给出不计入总词数 DearPeter LearningthatyouarehavingahardtimelearningChineseI'mwriting… Sincerelyyours LiHua
WhenIwasthreeyearsoldmyparentsdiscoveredIwastotallydeaf.Afterdiscussingwithdoctorstheymadeadecisiontosendmetoa1school. Iexperiencedgreat2throughoutelementaryschoolbecauseI3withmostofmyschoolworkinorderthatIcouldkeepup.Becauseofmy4IhadtoconstantlyaskeveryoneWhatdidhe/shesay?Classmatesarewarmhearted.5Iworriedthateveryonewouldsoon6repeatingeverythingbacktome.OftenIwasafraidmyclassmateswouldmakefunofmesoI7answeredanyteacher'squestion. Mrs.Jordanmy5thgradeteacherchangedmy8withasimplethreewordphrase.Onemorningsheaskedtheclassaquestion.Ireadherlipsandimmediatelyraisedmyhand.YetIdaren't9it﹣thistimeIknewtheanswer.WhenshecalledonmeIwasnervous.Despitemy10IfeltconfidentbecauseIwas11thatIhadtherightanswer.Itookadeepbreathand12answeredMrs.Jordan'squestion. Iwillnever13whathappenednext.Her14surprisedallofus.Mrs.Jordanenthusiasticallyhitthefloorwithherrightfootandranherrightfingerinafullcircleuntilitpointeddirectlyatme.Withsparkling闪闪发光的eyesandawidesmileshe15THAT'SRIGHTSTEPHEN! ForthefirsttimeinmyyounglifeIwasaninstantstar.Mypride16inmyheart.My17roselikeneverbefore.Asimplethreewordphrasedeliveredwith18enthusiasmhadtotallychangedmyyounglife. Fromthatdaymygrades19dramatically.My20amongmypeersincreasedandmyoutlookonlifedidacompleteturnabout. 1A.boarding B.normal C.special D.medical 2A.gratitude B.discrimination C.anxiety D.indifference 3A.struggled B.dealt C.trembled D.reacted 4A.curiosity B.bravery C.courage D.disability 5A.Therefore B.besides C.However D.Otherwise 6A.gettiredof B.getshyof C.getashamedof D.getskilfulat 7A.briefly B.eagerly C.narrowly D.rarely 8A.belief B.situation C.environment D.decision 9A.deny B.bear C.judge D.believe 10A.fears B.annoyance C.disadvantage D.embarrassment 11A.astonished B.pleased C.convinced D.excited 12A.nervously B.gladly C.simply D.respectfully 13A.meet B.forget C.expect D.doubt 14A.response B.answer C.abuse D.expression 15A.admitted B.nodded C.cried D.explained 16A.disappeared B.continued C.ended D.burst 17A.honesty B.satisfaction C.firmness D.confidence 18A.innocent B.little C.incredible D.natural 19A.improved B.dropped C.influenced D.slid 20A.strength B.popularity C.honor D.appreciation
StephenWiltshireisafamousartist.Hisdrawings﹣oftendrawnfrommemoryandatgreatspeed﹣aresketched素描onthespotatstreetlevel. StephenwhowasborninLondonin1974didn'tsayawordasasmallchildandfoundithardtorelatetootherpeople.AttheageoffiveStephenwassenttoQueensmillSchoolLondonwhereitsoonbecameapparentthathecommunicatedthroughthelanguageofdrawing.Histeachersencouragedhimtospeakbytakingawayhisartmaterialsforashorttimeeventuallyhesaidhisfirstwords﹣paperandpencil﹣butdidn'tlearntospeakfullyuntiltheageofnine. Stephenloveddrawingandhewasseldomtobefoundwithoutpenandpaper.Oncehetookpartinartcompetitionsnewsofhisgreattalentbegantospread.EarlyfansincludedthelatePrimeMinisterEdwardHeathwhoboughthisdrawingofSalisburyCathedralmadewhenStephenwasjusteight. ButStephencametowiderpublicattentionwhentheBBCfeaturedhimintheprogrammeTheFoolishWiseOnesin1987whenhewasintroducedbySirHughCassonapastpresidentoftheRoyalAcademyasthebestchildartistinBritain. AfterthatStephen'sreputationgrewworldwide.AsecondBBCdocumentaryin2001showedStephenflyingoverLondoninahelicopterandlatercompletingadetaileddrawingofLondonwithinthreehourswhichincluded12historiclandmarks地标性建筑and200otherstructures. In2006StephenwasrecognisedforhisservicestotheartworldwhenhewasmadeamemberoftheOrderoftheBritishEmpire.TodaywhereverStephengoespeopleareattractedbyhisoutstandingtalent. 1WhatproblemdidStephenhavewhenhewasasmallchild? A.Noschoolswantedhim. B.Noteacherslikedhim. C.Hecouldn'tspeak. D.Hecouldn'tspell. 2WhendidStephenbecomeworldfamous? A.AfterhissecondBBCdocumentary. B.AftertheprogrammeTheFoolishWiseOnes. C.AfterhemetwiththelatePrimeMinisterEdwardHeath. D.AfterSirHughCassonboughthisdrawingofSalisburyCathedral. 3WhatisspecialaboutStephen'sdrawingofLondon? A.Itwashisgreatestwork. B.Itwasdrawninahelicopter. C.Itfeaturedhistoriclandmarks. D.Itwasfinishedinashorttime. 4Thetextislikelytoappearin. A.anovel B.abiography C.anofficialreport D.ahistorypaper
已知如图在坡顶A处的同一水平面上有一座古塔BC数学兴趣小组的同学在斜坡底P处测得该塔的塔顶B的仰角为45°然后他们沿着坡度为12.4的斜坡AP攀行了26米在坡顶A处又测得该塔的塔顶B的仰角为76°.求 1坡顶A到地面PO的距离 2古塔BC的高度结果精确到1米. 参考数据sin76°≈0.97cos76°≈0.24tan76°≈4.01
VisitChicagoChildren'sMuseum Inbrief Thismuseumoffersplentyoffunhands﹣onactivitiesforkids.HoweverthisisoneofthefewChicagomuseumsnotfunforthewholefamilyasadultsandolderkidswillbeboredtotears. Address700EastGrandAve.NavyPierChicago Phone312﹣527﹣1000 Publictransportation CTAbuslines#29StateStreet#65GrandAvenueand#66ChicagoAvenueallserveNavyPier. Parkingfees •MondaythroughThursday﹩20 •FridaythroughSunday﹩24 •Holidays24 Openinghours •Weekdays10am﹣5pm •Weekends10am﹣8pm Entrancefees •Adults﹩12 •Children﹩12 •Seniors65+﹩11 •Childrenunder5free Activities LocatedatoneofChicago'stoptouristattractionsNavyPierthemuseumoffersthreefloorsofactivitiesforkidsincluding •PlayItSafe﹣﹣allabouthomesafety •InventingLab﹣﹣providespartsandinstructionsforcreatingthings •KidsTown﹣﹣aplayroomrecreatingaChicagoneighborhoodwherekidscanpretendtodothingslikeshoppingforgroceriesanddrivingaCTAbus •ClimbingSchooner﹣﹣athree﹣floorclimbingbuilding •MyMuseum﹣﹣kidsgettocreatevariouspiecesofartthatareallaboutme •Skyline﹣﹣kidslearnaboutskyscrapersanddesigntheirownbuildings •TreeHouseTrails﹣﹣aplayareadesignedlikeaforest •Waterways﹣﹣wateractivitiesshowinghowpumpsanddamswork 1HowmuchwillJohn10hisparents40andsister6payiftheydrivetothemuseumat2pmonMonday? A.﹩36. B.﹩48. C.﹩56. D.﹩68. 2Kidswhoarefondofcreatingworksofartshouldchoose. A.PlayItSafe B.InventingLab C.MyMuseum D.Skyline 3IfyougotoKidsTownyoucan. A.goonashorttriptoaforest B.buysomegiftsforyourfriends C.knowmoreaboutpumpsanddams D.experienceChicagoneighborhoodlife 4WhatcanweknowaboutChicagoChildren'sMuseum? A.Itisathree﹣floorbuilding. B.Itisnotfitforadultsorolderkids. C.ItisthemostpopularmuseuminChicago. D.ItisoneofChicago'stoptouristattractions.
Manylittlekidsdreamofchangingtheworldbuthowdoessomeoneso1makeadifferencetoaplacesobig?This5﹣year﹣oldboyfromtheUKmayhavefounda2. TobyLittleisreachingouttoeverycountrythroughletters.He's3tocontactatleastonepersonfromeachcountry﹣andgeta4.Toby'smission使命beganwitha5assignmentfromschool.HismotherSabineLittlesaid HewasaskedtoreadabookcalledALettertoNewZealandwhich6thejourneyalettertakes.7readingitheaskedMummycanIwritealettertoNewZealand?AndwhileIwasstilltryingto8howtoanswerthathesaidCanIwritealettertothe9world?Atfirstshethoughthis10fortheprojectwould11but239letterslaterTobyisstillgoingstrong.12he'swrittento187countriesandheardbackfrommanyofhiscontacts.ButToby'sprojectwon't13there.The5﹣year﹣oldalsowantstofindawaytohelpthepeoplehe's14with. Whenwestartedwritingletterswe15witheasilyaccessiblefirst﹣worldcountrieshismotheradded.Suddenlywegotan16forSomalia.WhenweresearchedthecountryTobywas17andaskedwhathecoulddotohelp.Togetherwe18acharitywhoseworkwasaccessibletochildren. TobychoseShelterBoxacharitythatprovidesforfamiliesandchildrenwhohave19everythingduetodisasters.JusttodayTobymethis20ofraising﹩950.IwanttheworldtobeabetterplaceTobysaid. 1A.noisy B.small C.lovely D.clever 2A.way B.skill C.friend D.partner 3A.careful B.proud C.satisfied D.determined 4A.result B.story C.permit D.response 5A.reading B.writing C.listening D.speaking 6A.begins B.explains C.describes D.completes 7A.Until B.After C.Before D.Despite 8A.show B.understand C.figureout D.preparefor 9A.free B.new C.other D.whole 10A.support B.concern C.enthusiasm D.sympathy 11A.fade B.spread C.return D.develop 12A.Afterall B.Sofar C.However D.Therefore 13A.end B.pass C.apply D.expand 14A.played B.stayed C.connected D.competed 15A.worked B.negotiated C.kickedoff D.caughtup 16A.idea B.deal C.question D.address 17A.sad B.excited C.happy D.scared 18A.setup B.lookedfor C.headedfor D.droppedinto 19A.requested B.provided C.recorded D.lost 20A.standard B.goal C.challenge D.match
Whatcanmakeyouhappy?Aniceholidayonbeach?Maybeabigmealwithfriendsatanexpensiverestaurant?Orpossiblyspendingmoneyonapairofthelatestdesignerjeans?Allthesepleasurescostmoney.Sodoesthatmeanweneedlotsofcashtofeelgoodordoestheoldsayingmoneycan'tbuyhappinessstillprovetrue? ThissayinghasbeenputtothetestbyresearchersinCanada.Theyfoundthatwhenusedintherightwaymoneycanbringushappiness.Theydiscoveredthatwhenyouusemoneytofreeuptimebypayingsomeonetodoyourworkyouarehappier.Inanexperimentpeoplereportedhigherlifesatisfactioniftheyusedmoneytosavetimeratherthanspenditonmaterialgoodssuchasanewpairofshoes.Butsurprisinglytheresearchersfoundthatonlylessthanathirdofpeopleusedtheirmoneytobuytimeeachmonth. Inourbusylivesweareshortoftime.Peoplegetstressedoverthedailydemandsontheirtime.Psychologistssaythatstressoverlackoftimecauseslowerhappinessandcontributestoanxietyandsleeplessness.Butasincomesarerisingthereisachoicetobuytime. Thiscanbethroughhiringacleanertocleanyourhouse﹣﹣﹣givingusvaluableextrahourstodothethingswewanttodo.Andinmanyforward﹣thinkingcompaniesemployeesaregiventhechancetobuymoretimeoffworkorworkflexibly. Ineverdoubtthatbuyingmoretimemakesmefeelhappierandmorerelaxed.Butputtingtimeinthefirstplaceoverputtingmoneydoescomeataprice.Sometimesthetruthisthatyouhavelesscashtospendonthethingsyounowhavetimetodo.Thenyoumaythinkabouthowtomakeadecision. 1Howdoestheauthormainlyintroducethetopicofthetext? A.Bytellingastory. B.Byusingimagination. C.Byofferingexamples. D.Byraisingquestions. 2WhatisashockinanexperimentcarriedoutbyresearchersinCanada? A.Mostpeoplehadmuchhigherlifesatisfaction. B.Moneycouldbringrealhappinesstopeople. C.Notsomanypeoplespentmoneybuyingtime. D.Moremoneywasspentonmaterialgoods. 3Whatdoestheauthorsuggestpeopledoaboutbuyingtimeatlast? A.Shareitsbenefitswithothers. B.Consideritbeforedeciding. C.Carryitouttogainhappiness. D.Giveitupwhenlackingmoney. 4What'sthebesttitleforthetext? A.CanMoneyMakeUsHappy? B.TimeValuesMoreThanMoney. C.HappinessComesFirstinOurLife. D.ShouldWeSpendMoneyonTime?
如图在▱ABCD中AB=6BC=8以C为圆心适当长为半径画弧分别交BCCD于MN两点分别以MN为圆心以大于MN的长为半径画弧两弧在∠BCD的内部交于点P连接CP并延长交AD于E交BA的延长线于F则AE+AF的值等于.
Iwaselevenyearsoldwhenthefirebrokeoutthatyear.IstoodoutsideinjustmyunderwearwhileIwatchedthe1thatIgrewupinrapidlyburntothe2.AfewminutesearlierIhadbeen3asleepinmynicewarmbedwhena4wokemeup.Mymum'sbedroomwasjustnexttomineandmybrother's.Afirehadbrokenoutthereand5her.WhileIstumbled跌跌撞撞地走aroundinthe6anddarknesssheranfromroomtoroomquicklywakingeveryoneinthehouse.Thehousehoweverwasover50yearsoldandmadeofwood.Beforewecoulddoanythingthefire7it.Weallbarely8outsidebeforethe9engulfed吞没everyroom. Istoodthere10whilethefiredestroyedmybooksclothesandtoys.Iwatched11whilemymumcriedandmyDadswore.I12whatwasgoingtohappentous13wehadlostallofourthings.AsIlookedaroundthoughIrealizedsomethingforthefirsttimeThethingsthat14aren'tthings.Irealizedatthatmomentthatwewereallalive.15thatwasessentialhad16thefire.Wewouldallbearoundtoloveeachotherformanyyearstocome.Andthatwasallthatmattered. Istillthinkofthatfireinthe17thathelpedmetobecomewhoIamtoday.Itshowedmefortheveryfirsttimewhatistruly18inthislife.Ithelpedmetolearnthatthelovewe19isfarmoreimportantthanthethingswe20. 1A.room B.house C.floor D.yard 2A.ground B.field C.ashes D.ruins 3A.loud B.quick C.good D.sound 4A.call B.scream C.voice D.noise 5A.caught B.frightened C.awakened D.denied 6A.smoke B.fire C.light D.noise 7A.spared B.possessed C.consumed D.found 8A.gotit B.madeit C.putit D.triedit 9A.flames B.dust C.silence D.fear 10A.nodding B.watching C.trembling D.staring 11A.curiously B.bravely C.peacefully D.helplessly 12A.wandered B.wondered C.fancied D.amazed 13A.nowthat B.enenif C.asif D.sothat 14A.rely B.mind C.matter D.value 15A.Something B.Everything C.Nothing D.Anything 16A.escaped B.saw C.survived D.passed 17A.afternoon B.day C.morning D.night 18A.basic B.reliable C.useless D.essential 19A.share B.protect C.feed D.remember 20A.apply B.aim C.support D.possess
函数y=+中自变量x的取值范围是.
AlthoughtheUnitedKingdomIrelandCanadaAustraliaandNewZealandhaveEnglishasanofficiallanguagetheUnitedStatesdoesnothaveanofficiallanguage.Thisishowit'spossibletobecomeaUScitizenwithoutspeakingEnglish.CanadaalsohasFrenchasanofficiallanguagethoughitismostlyspokenintheprovinceofQuebec.BecausemanyoftheEnglishspeakerswhooriginallyinhabited居住CanadacamefromtheUSthereislittledifferenceintheAmericanandCanadiandialectsofEnglish.SimilarlyAustralianandNewZealandEnglishhavefewdifferencesexceptAustraliawasoriginallysettledasapenalcolony流放地andNewZealandwasnot.BritishcolonialismhasspreadEnglishallovertheworldanditstillholdsprestige影响力inSouthAfricaIndiaandSingaporeamongothernations.InSouthAfricaEnglishbecameanofficiallanguagealongwithAfrikaansand9Africanlanguagesinthe1996constitution__.Howeveronly3%ofthecountry's30millionpeoplearenativeEnglishspeakers.Twentypercentaredescendants后代ofDutchfarmerswhospeakAfrikaansandtherestarenativeAfricans.IndiabecameindependentfromBritainin1947andtheEnglishlanguagewassupposedtobephasedout淘汰by1965.HowevertodayEnglishandHindiaretheofficiallanguages.IndianEnglishischaracterized具有的特征bytreatingmassnounsascountnounsfrequent频繁的useofthe'isn'tit?'taguseofmorecompoundsandadifferentuseofprepositions.InSingaporeChineseMalayandIndianlanguageshaveanimpact影响ontheformofEnglishspoken.EveryoneistaughtEnglishintheschoolsystembutthereareafewdifferencesfromBritishEnglishaswell.Massnounsaretreatedascountnouns'useto'meansusuallyandnoarticles冠词areusedbeforeoccupations职业.1WhycanpeoplebecomeaUScitizenwithoutspeakingEnglish?A.DifferentlanguagesarespokenintheUS.B.TheUSdoesn'thaveanofficiallanguage.C.Theycanspeaktheirownlanguagethere.D.TheycanlearnEnglishthere.2Compared比较withAustralianEnglishtheEnglishspokenbyNewZealanders.A.isclosertoAmericanEnglishB.isakindofoldEnglishC.isverysimilarinmanywaysD.isdifferentfromBritishEnglish3WhatdoweknowaboutSouthAfrica?A.Ithas11differentofficiallanguages.B.Englishisitsonlyofficiallanguage.C.20percentofitspeoplearenativeEnglishspeakers.D.Englishisbecominglessimportantthere.4Whatcanweinferfromthelastparagraph?A.TheIndiansarepoorwithEnglishgrammar.B.SingaporeanEnglishissimilartoIndianEnglish.C.PeopleinSingaporetendto倾向于misusecountnouns.D.EnglishisarequiredsubjectinSingaporeanschools.
分式方程=1的解是
如图5个完全相同的小正方体组成了一个几何体则这个几何体的主视图是
AngelGarciaCrespoisacomputerengineeratCarlosIIIUniversityofMadridinSpain.Hisgrouphasinventedanewwayfordeaf﹣blindpeopletowatchTV.Theideaforthetechnologygrewoutofpreviousworkbyhisgroup.Theteamhadalreadyworkedonmakingaudiovisual视听的materialsaccessibletopeoplewitheithervisionorhearingdisabilities.Butthegroupwantedtohelppeoplewithbothchallenges.Sotheyaskedsomedeaf﹣blindpeoplewhatwouldhelp. Inadditiontorelyingontheirsenseoftouchtocommunicatedeaf﹣blindpeoplecanalsogetandsendinformationwithaBrailleline.TheBraillesystemusespatternsofraiseddotstostandforlettersandnumbers.ABraillelineisanelectronicmachinewithachangeableBrailledisplay.Dotsriseupordropdownbasedontheinformationsenttothemachine. NowthenewsystemchangesTVsignalstodataaBraillelinecanuse.Thekeytothesystemisthepossibilityofusingsubtitles字幕tocollectTVinformationGarciaCrespoexplains.Subtitlestravelwiththeimage影像andtheaudioinelectromagneticwaveswedon'tsee.Butanelectronicsystemcankeepthosewaves. Firstacomputerprogramorapppullsoutthesubtitlesandvisualdescriptionsfromthebroadcastsignal.ThesystemthencombinestheinformationandchangesbothintodataforBraille. Nowanotherappgetstoworkwhichsendsthedataouttopeople'sBraillelinesondemand.ThisisdoneinrealtimeinlessthanasecondGarciaCresposays.Thisletsadeaf﹣blindpersonwatchTVasit'sbroadcast.ThesystemwillworkwithvariousBraillelinesaslongasthere'sabluetoothconnectionavailable.NowthesystemisonlyusedinEuropeanditshouldsoonbeavailableintheUS. 1WhatinspiredGarciaCrespo'sgrouptoworkonthenewtechnology? A.Deaf﹣blindpeople'spoorlife. B.Theirpityonthedisabledpeople. C.Thechallengestheyfaceinwork. D.Theirgroup'spreviousresearch. 2WhycantheelectronicsystemcollectTVinformation? A.Itcancombineallkindsofbroadcastsignals. B.Itcankeepthewaveswithsubtitlestraveling. C.ItcanworktogetherwithavarietyofBraillelines. D.Itcanpulloutthesubtitlesandvisualdescriptions. 3Whatdoestheauthorthinkofthefutureofthenewtechnology? A.Challenging. B.Bright. C.Rewarding. D.Hopeless. 4Whatshouldbeasuitabletitleforthetext? A.NewTechnologyIsImprovingDeaf﹣blindPeople'sLife B.ANewBrailleLineIsAppliedtoDisabledPeople'sLife C.ASpanishGroupMakesTVAccessibletoBlindPeople D.NewTechnologyHelpsDeaf﹣blindPeopleWatchTV
OnourwaybackhomefromChristmastoydriveIaskedTommyifhehadanythingtoshare. Idon't1anythingMomheanswered.We'resopoor. Butyou'reneversopoorthatyouhavenothingto2Isaid. ButhowcouldIhelphimunderstand3Imyselfstillcomplainedaboutthe4thingsIcouldn'tafford? Thenextdayoneofmy5handedmeaChristmasgift﹣﹣aboxofchocolates.Shehadbeen6formonths! ThankyouJoannaIsaidtryingtoholdbackthe7asIhuggedher. Ihadn'texpecteda8﹣﹣Iworkatanadulteducationcenterwherewedealwithpeoplewhostrugglefinancially. LookingatmyChristmasgiftIwonderedifithadbeenanofferingoutofa9foodbudgetandIwantedtorefuseit.10IsaidThankyou. WhenIbroughtthecandieshometo11withmyfamilyItoldthemhow12eachchocolatewasifyouthoughtofhowmuchtheunemployedwoman'sfamilymakesayear.Isaidit13understandingmuchbetterYou'reneversopoorthatyouhavenothingtogive. Perhapsthe14Icouldhelpmysonunderstandwasformetounderstandfirst.15Iwenttomybookshelfandchoseseveralofmyfavorite16tosharewiththecenter.WhenIhadthem17Ifoundmysondraggingabasketoftoyshehadplayedwithwhenyounger.Idon'twantthese18thingshesaid. HehadlearnedthewayIhad﹣﹣by19!HereIhadthoughtIwastheteacherbutastudentistheone20meYou'reneversopoorthatyouhavenothingtogive. 1A.need B.have C.hide D.purchase 2A.afford B.appreciate C.expect D.give 3A.but B.until C.when D.though 4A.expensive B.practical C.delicious D.natural 5A.colleagues B.friends C.students D.relatives 6A.outoftouch B.inpower C.incharge D.outofwork 7A.tears B.anger C.curiosity D.desires 8A.gift B.coincidence C.reward D.hug 9A.tight B.perfect C.actual D.wrong 10A.Otherwise B.Instead C.Besides D.Therefore 11A.study B.deal C.experience D.share 12A.nutritious B.precious C.tasty D.inviting 13A.later B.already C.again D.before 14A.opportunity B.time C.way D.importance 15A.Unwillingly B.Immediately C.Curiously D.Frequently 16A.Clothes B.chocolates C.colors D.novels 17A.weighed B.boxed C.stored D.repaired 18A.frightening B.cheap C.dirty D.old 19A.word B.example C.punishment D.praise 20A.remembering B.helping C.teaching D.loving
Duringthepast10yearsdomesticviolencehascaughtwiderpublicattentionthankstomoreexposureofcasesinthenewsmediaandonline.KimLeetheAmericanwifeofLiYangapopularEnglishteacherandfounderoftheCrazyEnglishpostedphotosofherswellingforeheadandbruisingkneesontheSinaWeibomicro﹣bloggingserviceinAugust.LeeaccusedherhusbandofbeatingherinfrontofoneoftheirchildrenandfiledaappealfordivorceinOctober. Itisestimatedthatabout25percentofChinesewomenhavebeenabusedbytheirhusbandsverballyandphysically.TheAll﹣ChinaWomen'sFederationandtheNationalBureauofStatisticsreleasedthefigureonOct21followinganationalsurveyof105573peopleaged18andover. WiththegrowthoflegalconsciousnessmoreandmorepeopleareawarethatChinahasaspeciallawtoprotectwomen'srightsandinterests.Howevermostofthevictimscouldnotprovetheabuseincourtduringdivorcehearingsbecauseevidenceisdifficulttoproduce.Expertssaidthatthelegalsystemdoesnotprotectthevictimseffectively.Previouslawsandregulationsconcerningdomesticviolencearedifficulttopractice. That'swhyourfederationiscallingforanationallawspeciallydevotedtocontaindomesticviolencetoclarifydefinitionsoftheoffensesidentifyresponsibilitiesofrelevantdepartmentsandensurethepowerofpunishmentofviolators违法人员.saidZhenYanvice﹣presidentoftheAll﹣ChinaWomen'sFederation. InspiteofthehardshipsKimLeemadeafirmstatementinalettershewrotetoLiYangandalsosenttotheAnti﹣DomesticViolenceNetworkofChinaLawSociety Imayfailtobringyoutojusticeandyourfamemayprotectyoufromconsequencesforyourbadactions. Iwillnotfail…inmymissiontohelpmillionsofChinesewomengainthelegalprotectionthattheydeserve.Evenifyoubeatheritisimpossibletodefeatthewomanwhonevergivesup. 1WhatcanwelearnaboutKimLeefromParagraph1? A.ShewasattackedbyherhusbandontheSinaWeibomicro﹣bloggingservice. B.ShepostedherphotosontheInternetinordertopromoteTheCrazyEnglish. C.ShewasbeatenbyherhusbandwhensheproposedadivorceappealonOctober. D.Shecouldn'tacceptthatherhusbandbeatherinoneoftheirchildren'spresence. 2Accordingtothepassagewhydoesthelegalsystemnotprotectthevictimseffectively? A.Becauseitishardtogettheviolatorsofdomesticviolencepunishedincourt. B.Becauseitiscommonandnormalforahusbandtobeathiswifewhennecessary. C.BecauseChinadoesn'thaveaspeciallawtoprotectwomen'srightsandinterests. D.Becausemostwiveslovetheirhusbandtoomuchandcanputupwitheverything. 3AccordingtoZhenYanwecaninferthat. A.ZhenYanbelievesthatwomeninChinawillhaveabrightfuture B.theAll﹣ChinaWomen'sFederationisthelargestwomen'sorganization C.there'snospeciallawdealingwithdomesticviolenceinthepresentlegalsystem D.theirorganizationisexperiencedwiththecasesconcerningdomesticviolence 4AccordingtoKimLee'slettermentionedinthepassagewecanconcludethat. A.KimLeeistryingtoensurethatherhusbandwillbepunishedbylaw. B.LiYangwillnottakehisresponsibilitybecauseheissofamous C.Awomancan'tbedefeatedbydomesticviolencebutbylove D.KimLeeisdeterminedtomakesurewomenarelegallyprotected
InthefourmonthssinceIlastpostedarticlesonmyblogI'vebeenspendingalotoftimestudyingChinese.IwantedtopasstheHSK.FromthebeginningofmyprogramtheHSKwastheendgoalofmyChineselearningthisyear.LuckilyIpasseditandnowIhaveoneandahalfmonthstogohomeandstaywithmyfamily. It'sreallyexcitingtolearnChineseinanenvironmentwhereIcanstudyveryfast.What'smoreIcanseemyownprogressindifferentways.WhenIgothereeightandahalfmonthsagoIonlyknewafewofthe150wordstestedintheHSK1.HoweveruntilnowI'vetakenandpassedthe2500wordHSK5. IrememberatimearoundJanuary.IthoughtmyChinesehadreachedthepointwhereIwascomfortableinmydaytodayconversations.Somyprogresswouldslowdowngreatly.HoweveritturnedoutthatIwastotallywrong.TheconversationsIcanhavenowfarsurpass超过theonesIwashavinginJanuary. TodayIhitalanguagelearninglandmark里程碑thatwasparticularlyexcitingformeIfinishedreadingHarryPotterandtheSorcerer'sStoneinChinese.Itmightnotseemthatexcitingbutitwasformebecauseit'sthefirstfullbookI'vereadinChinese.Andit'sthethirdlanguageI'vereadHarryPotterin.I'mespeciallyproudbecauseIspentaboutsevenmonthsreadingthefirst35pagesbutinthelastmonthandahalfImanagedtoreadabout150pages.MynextchallengeistoreadanovelwrittenbyaChineseauthorratherthanonethatI'vealreadyreadmanytimesinEnglish! HopefullyI'llbeabletokeepupmylanguagelearningprogressoverthenextmonthandahalfbecauseIknowI'llprobablyneverhaveanotheropportunitytolearnalanguagelikethis. Doyouwanttolearnanewlanguage?Ifyoudogotothecountrywherepeoplespeakitandlearnitfromthelocals. 1WhatdoweknowabouttheauthorwhenshefirstcametoChina? A.Shedidn'twanttolearnChinese. B.ShetooktheHSK1immediately. C.ShewasextremelypooratChinese. D.Shejustknew150wordstestedintheHSK1. 2WhydoestheauthorsayshewastotallywronginParagraph3? A.Becauseshedidn'treallyknowhowtolearnChinese. B.BecauseshecouldlearnbetterinaChineseenvironment. C.Becauseshewasuncomfortableinherdaytodayconversations. D.Becauseshemaderapidprogressinherdaytodayconversations. 3WhatdoestheauthorwanttoshowbymentioningreadingHarryPotter? A.Shecouldreadbooksreallyfast. B.It'sgoodtolearnthroughreading. C.ShelearnedtheChineselanguagequickly. D.TheHarryPotterbooksareworthreading. 4Whatdoestheauthor'sChineselearningexperiencemainlytellus? A.Weshouldlearnalanguagethroughtravelling. B.Learningasecondlanguageisreallyimportant. C.TheChineselanguageisnotsodifficulttolearn. D.Thelanguagelearningenvironmentisimportant.
假定英语课上老师要求同桌之间交换修改作文请你修改你同桌写的以下作文.文中共有10处语言错误每句中最多有两处.每处错误仅涉及一个单词的增加删除或修改. 增加在缺词处加一个漏字符号∧并在其下面写出该加的词. 删除把多余的词用斜线\划掉. 修改在错的词下划一横线并在该词下面写出修改后的词. 注意1.每处错误及其修改均仅限一词 2.只允许修改10处多者从第11处起不计分. Sharkshadbeenaroundforaverylongtime.Sharksarefishandthereareover400typesofsharksofthatthebiggestisthegreatwhiteshark.Whentheyhavebabiesthebabiesarecallingpups.Sharkslosetheirteethlikehumansandtheydon'tjustlosetheirbabytooth.Theyloseteeththroughouttheirlives.Whenasharklosingatoothatoothfromanotherrowofteethwillmoveintoitsplace.Newteetharealwaysgrowing.Becausemostsharkseatmeatsotheyfeedotheranimals.Sharksmightlookscarybuttheyarenotusuallydangeroustopeople.Peoplearemoredangeroustosharkssincepeoplehuntsharks.Tobesafelythoughitisagoodideatoleavesharksaloneifyouseeit!
如图F为⊙O上的一点过点F作⊙O的切线与直径AC的延长线交于点D过圆上的另一点B作AO的垂线交DF的延长线于点M交⊙O于点E垂足为H连接AF交BM于点G. 1求证△MFG为等腰三角形. 2若AB∥MD求MFFGEG之间的数量关系并说明理由. 3在2的条件下若DF=6tan∠M=求AG的长.
HowCanIFightLaziness? Lazypeoplewillnevergainanythinginlife.Howeverlazinesscanbedefeatedonceafewchangeshavebeenmadeinyourmind. 1Manypeoplelacksleepconstantlysincetheystayuptoolateandgetuptooearlytoprepareforwork.Thesepeoplehavelittlemotivationoncetheyarrivehome.Lazinessworkshandinhandwithalackofmotivationandatendencytoputoffthings.Byadjustingyoursleepscheduletoprovideafewmorehoursofmeaningfulrestyoucanfightlazinessthroughouttheday. Anotherwaytofightlazinessistochangeyourmindfrompassivetoactive.Somepeopletreattheirlivesasiftheywerepushedfromtasktotask.Otherstakeamorepositiveapproachviewingeachtaskasachallengetheymustovercomealone.2 Somepeoplefightlazinessbyremovingthetemptations__thatsurroundthem.AtelevisioninthelivingroommayprovideentertainmentbutwatchingtoomuchTVoftencontributestolaziness.3Completeafewtasksandrewardyourselfwithwhatyouenjoysuchasagooddinnerorafilm. Lazinesscanalsobealastingproblemathome.Couplesandchildrenmayallhavedifferentenergylevelsbutlazinesscanbespreadifnotdealtwithimmediately.4Bethefirsttocollectandwashdishesafterameal.Othersinthehomemayeventuallyfollowyourexampleandperformtheirowntask.Itisdifficulttopracticelazinesswhenyouaresurroundedbymotivatedpeople. 5Enoughexerciseandabalanceddietcanhelpyoutodevelopahealthylifestylethusenablingyoutohavemoreenergyandhelpliftyourspirits. A.Tofightfamilylazinesssetanexample. B.Knowinghowtofightlazinessisimportant. C.Onewaytofightlazinessistogetenoughsleep. D.Finallytakingexerciseregularlycanhelpyoufightlaziness. E.Withstrongdeterminationyouwillbeabletoachieveyourgoal. F.Lazinessappearswhenyounolongerfeelinchargeofyourownmind. G.Createarewardsystemforyourselfjustasparentsdoforachild.
假定英语课上老师要求同桌之间交换修改作文请你修改你同桌写的以下作文.作文中共有10处语言错误每句中最多有两处.每处错误仅涉及一个单词的增加删除或修改. 增加在缺词处加一个漏字符号∧并在其下面写出该加的词. 删除把多余的词用斜线\划掉. 修改在错的词下划一横线并在该词下面写出修改后的词. 注意1.每处错误及其修改均仅限一词 2.只允许修改10处多者从第11处起不计分. Ialwayswantedtobegreatscientist.Ihadthesedreamsofdiscoveringanewdrugthatwouldsavethelifeofhundredsofpeople.UnfortunateIwasneververygoodatchemistryatschoolandtheteacherusedtogettingveryangrywithme.AfterawhileIdecidedIwouldbecomeaninventoranddesignedanonlyproductwhichwouldbecomeahouseholdname.Myparentswerequiteencouragedbuttoldmetobealittlemorerealistic.AfewweekslateIhadacleverideaforapenthatwouldwritewithupsidedown.Tomydisappointmentafriendofmepointedoutitwasnotanewdiscovery.
Chineseproverbsarerichandtheyarestillwidelyused1Chinesepeople'sdailylife.Behindtheseproverbsthereareofteninteresting2story.Forexampletheproverbpluckingupacroptohelpitgrowis3baseonthefollowingstory. Itissaid4ashort﹣temperedmaninthestateofSongwasveryanxious5helphisricecropsgrowupquickly.Hewasthinkingaboutitdayandnight.Butthecropsweregrowingmuchslowerthanheexpected. Onedayhecameupwithanideathathewouldpluckupallof6hecropsafewinches.Hedidsothenextday. Hewasverytiredafterfinishingdoingthisforawholeday7hefeltveryhappysincethecropsdidgrow8high. Hissonheardaboutthisandwenttoseethecrops.9unfortunatetheleavesofthecropsbegantowither枯萎. Thisproverbtellsusthatweshouldletthingsgointheirnaturalcourse.Beinganxioustohelpaneventdevelopoften10resultinthecontrarytoourintention.
如图a∥b点B在直线b上且AB⊥BC∠1=35°那么∠2=
There'sagoodchancesomethingyou'veboughtonlinehasbeeninthehandsofapickerfirst.Thesearetheworkersinwarehouses仓库whopickpackandshipallthosethingswe'reordering. AtAmazonandothercompaniesthey'reworkingsidebysidewithrobots.Expertssaywhiletherobotsarereplacingsomehumanworkersthemachinesaren'tquitereadytotakeovercompletely. Whenarobotfindsitsstorageunititslidesunderneathliftsitupandthendeliversittoaworker一they'recalledpickers.Onarecentdaythecomputertoldapickertograbwhatlookedlikeafantasyboard棋盘game.Thepickerfounditcanneditandplaceditontheconveyorbelt. Inatraditionalfulfillmentcenterwheretheassociatewouldwalktothedifferentitemsitcantakehourstofulfillacustomerorder.Robinsonsays. Nowwiththehelpofrobotsthattasktakesminutes一andfewerhumans. Soisthisasignwe'reenteringanewindustrialrevolution? It'sdefinitelygoingtotakeoveralotofjobs.saysKarenMyersascientistatSRIoneofSiliconValley'soldestresearchcenters. Atthesametimeshesayswe'rerunningagainstthelimitsoftechnology.TakethepickerattheAmazonfulfillmentcenter.Myerssaysthoseskillsareprovingtobeuniquelyhuman. Ourfingersareincrediblyflexibleandthecurrentgenerationofroboticoperatorsthey'regettingmuchmuchbettershesays.Butthey'rejustnotquitethereyet. There'salsotherobot'sbrain. RememberthatboardgametheAmazonworkerwaslookingfor?Shecouldbarelyseetheboxfilledintothestoragebin﹣butshecouldtellitwasaboardgame.Robotscan'tdothat. Technologistssaythatincreasinglyhumanswillworksidebysidewithrobots﹣insteadofrobotsworkingalone. AmazonsaysrobotsandhumansenabledtheTracywarehousetofulfillcustomerordersfaster.Thatmeansmorecustomersandmorehumanworkers. 1Apickerdoessometasksexcept. A.pickinggoods B.producinggoods C.spottinggoods D.packinggoods 2Withthehelpofrobotssometasksare. A.moreefficient B.lessstraight C.moredifficult D.lessprofitable 3Comparedwithrobotshumansaremore. A.powerful B.artificial C.flexible D.energetic 4Whatisthebesttitleforthetext? A.Robotsreplacinghumanscompletely. B.Theadvantagesofshoppingonline. C.Thefutureofrobots. D.Robotsandhumansworkingsidebyside.
已知方程组当m为何值时x>y
如图若二次函数y=ax2+bx+ca≠0图象的对称轴为x=1与y轴交于点C与x轴交于点A点B﹣10则 ①二次函数的最大值为a+b+c ②a﹣b+c<0 ③b2﹣4ac<0 ④当y>0时﹣1<x<3.其中正确的个数是
假定英语课上老师要求同桌之间交换修改作文请你修改同桌写的以下作文.文中共有10处语言错误每句中最多有两处.每处错误仅涉及一个单词的增加删除或修改. 增加在缺词处加一个漏字符号∧并在其下面写出该加的词. 删减把多余的词用斜线\划掉. 修改在错词下面划一横线并在该词下面写出修改后的词. 注意1.每处错误及其修改均仅限一词 2.只允许修改10处多者从第11处起不计分. WhenIwasveryyoungmyparentsteachmethevalueofwritingthank﹣younotes.WhenevertheyaskedmetoIwouldrollmyeyesandwriteitafterbirthdaysandsomefestivalsunwilling.OnlyaftermygrandmotherpassedawayIrealizetheirimpact.MymomandIhadthetaskofcleanmygrandmother'shouse.IopenedadrawerinherbedsidetablewhichIfoundabeautifulwoodenbox.IopeneditbutwasshockedtoseeeverycardIhadeverwrittentoher.Theimpactofamomentstayedwithmeallmylife.WhenIhadchildrentheylearnedfromthevalueofwritingthank﹣younotesandstilldosoevenasgrownadult.
Howoftendoyouexercise?Anewstudyfoundthatmostkidsaged12to15weren'tgettingenoughphysicalactivity.Theresultswerebasedonabout800kids.Aspartofthestudythekidstrackedandreportedontheirownactivitylevelsandtookphysicalexams. U.S.fitnessguidelinessuggestanhourormoreofphysicalactivityeveryday.Accordingtothestudyonly1in4U.S.kidsgetenoughphysicalactivity. It'scertainlyworryingtoseethatourkidshavesuchalimitedamountofphysicalactivityeachdaysaidDr.StephenPont.Heisanexpertonchildren'shealth. Fewkidsinthestudymettheguidelinesonphysicalactivitythatraisestheheartrateandmakespeoplebreatheharder.Overallabout25%saidtheygotanhourofthatkindofexerciseeveryday.Kidsalsoreportedonwhichactivitiestheydidmostoftenoutsideofschoolgymclass﹣﹣basketballforboysandrunningforgirls. Thestudyfoundthatfatteenagerswerelessactivethannormal﹣weightgirlsandboys.Fatgirlswereslightlylessactivethannormal﹣weightgirlsbutlevelsweresimilaramongoverweightandnormal﹣weightboys.Thestudyalsosaidthatthepercentoffatchildrenaged2to19was17%orabout12.5millionkids. There'salwaysroomforimprovementsaidTalaFakhouriwhowastheleaderofthestudy.ShealsosaidtheresultsprovideusefulinformationtohelpwithfitnesscampaignssuchasLet'sMovewhichwasinitiatedbyMichelleObamain2010.ToinspirekidstoeatrightandgetinshapeMichellevisitsschoolsandholdsexerciseevents.Shealsocallsonschoolstoofferregulargymclasses. Thestudyalsofoundkidswhogetphysicaleducationatschoolmaygetbettergrades. 1Whatistheresultofthenewstudy? A.800kidsdon'tgetenoughphysicalactivity. B.MostU.S.kidsdon'tgetenoughexercise. C.Kidsshouldgetphysicalactivityeveryday. D.It'simportanttotakephysicalexams. 2Whichofthefollowingsportsdogirlslikebest? A.Swimming. B.Basketball. C.Running. D.Gym. 3What'sthepurposeofthecampaignLet'sMove? A.Tohelpkidstokeepfit. B.Toprovideusefulinformation. C.Toofferregulargymclasses. D.Toholdexerciseevents. 4Accordingtothestudychildrenwithenoughexercisemay. A.belessactivethanfatchildren B.bemorewillingtohelpothers C.dobetterintheirstudies D.trytheirbesttogetinshape
假定英语课上老师要求同桌之间交换修改作文请你修改你同桌写的以下作文.文中共有10处语言错误每句中最多有两处.错误涉及一个单词的增加删除或修改. 增加在缺词处加一个漏字符号∧并在其下面写出该加的词. 删除把多余的词用斜线\划掉. 修改在错的词下划一横线并在该词下面写出修改后的词. 注意1.每处错误及其修改均仅限一词2.只允许修改10处多者从第11处起不计分. DisappointingattheresultoftheexaminationIsatonthesofainsilentafterschool.MyfatherhefoundIwassounhappycometoaskmewhy.Afterlearningthereasonmyfathergavemeasmile.HesaidDon'tallowtheterriblythingsinyourlifetodiscountthepositiveones.Don'tletabaddayormonthoryeartomakeyoufeellikeyouhaveabadlifeinsteadfocusingoneverythingthat'sgoingwrongstartholdingontoallofthethingsthatisgoingright.You'llfeelbettersoon.HeardwhatmyfathersaidIfeltittheshametoactlikethatanddecidedtocheermyselfup.
某校有35名同学参加眉山市的三苏文化知识竞赛预赛分数各不相同取前18名同学参加决赛.其中一名同学知道自己的分数后要判断自己能否进入决赛只需要知道这35名同学分数的
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