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矩形AOBC中，OB＝4，OA＝3．分别以OB，OA所在直线为x轴，y轴，建立如图1所示的平面直角坐标系．F是BC边上一个动点（不与B，C重合），过点F的反比例函数y＝（k＞0）的图象与边AC交于点...
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如图所示只含红光和紫光的复色光束PO沿半径方向射入空气中的玻璃半圆柱后如果只被分成OA和OB两光束沿
OA为红光，OB为紫光
OA为紫光，OB为红光
OA为红光，OB为复色光
OA为紫光，OB为复色光
如图OP平分∠AOBPA⊥OAPB⊥OB垂足分别为
，
下列结论中不一定成立的是 ( ) A.PA=PBB.PO平分∠APB
OA=OB
AB垂直平分OP
已知点O.在直线AB上且线段OA的长度为4cm线段OB的长度为6cmE.F.分别为线段OAOB的中点
如图在∠MON的两边上分别截取OAOB使OA=OB分别以点AB为圆心OA长为半径作圆弧两弧交于点C连
已知在矩形AOBC中OB＝4OA＝3分别以OBOA所在直线为x轴和y轴建立如图所示的平面直角坐标系F
如图在矩形ABCD中对角线AC.BD交于点O.以下说法错误的是
∠ABC＝90°
AC＝BD
OA＝OB
OA＝AD
在直角坐标系中点A.是抛物线y＝x2在第二象限上的点连接OA过点O.作OB⊥OA交抛物线于点B.以O
如图B-2所示有一木块可以从斜面的顶端由静止沿左边或右边斜面滑下并且能分别滑到OA和OB距离时停止.
OA＞OB
OA=OB
OA＜OB
条件不足，无法确定
如图在平面直角坐标系中矩形OABC的顶点O.在坐标原点顶点A.B.分别在xy轴的正半轴上OA=3OB
在平面直角坐标系中直角梯形AOBC的位置如图所示∠OAC=90°AC∥OBOA=4AC=5OB=6.
在直角墙角AOBOA⊥OB且OAOB长度不限中要砌20m长的墙与直角墙角AOB围成地面为矩形的储仓且
如图3－5－15所示一只小球用绳OA和OB拉住OA水平OB与水平方向成60°角这时OB绳受的拉力为8
如图∠AOB＝30°点M.N.分别在边OAOB上且OM＝1ON＝3点P.Q.分别在边OBOA上则MP
矩形AOBC中OB=4OA=3.分别以OBOA所在直线为x轴y轴建立如图1所示的平面直角坐标系.F.
如图重G.的物体通过绳O
OB拴在半圆支架MN上，开始时，OA 与竖直方向成37º角，OB与OA垂直，下列说法正确的是：（ ）A.此时绳OA中的拉力为0.6G.
此时绳OA中的拉力为1.25G.
保持OB不动，沿圆弧上移A.点，OA绳中拉力变大
保持OB不动，沿圆弧下移A.点，OA绳中拉力变小
如图分别作出线段ABBC的垂直平分线设交点为O.连结OAOBOC.量得OA＝mmOB＝mmOC＝mm
如图所示只含黄光和紫光的复色光束PO沿半径方向射入空气中的玻璃半圆柱后被分成两光束OA和OB沿如图所
OA为黄光，OB为紫光
OA为紫光，OB为黄光
OA为黄光，OB为复色光
OA为紫光，OB为复色光
在矩形AOBC中OB=6OA=4分別以OBOA所在直线为x轴和y轴建立如图所示的平面直角坐标系.F.
在矩形AOBC中OB=6OA=4分别以OBOA所在直线为x轴和y轴建立如图所示的平面直角坐标系.F.
如图用O
OB两根轻绳将花盆悬于两竖直墙之间，开始时OB绳水平.现保持O.点位置不变，改变OB绳长使绳右端由
点缓慢上移至B.′点，此时OB′与OA之间的夹角θ<90°.设此过程中OA.OB绳的拉力分别为F.
OA
、F.
OB
，则下列说法正确的是 A.F.
OA
一直减小B.F.
OA
一直增大
F.
OB
一直减小
F.
OB
先增大后减小
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BANG!thedoorcausedareverberation回声.ItwasjuststandingtherewithfatherstandingononesideandIontheotherside. Wewerebothingreatanger.Neversetfootinthishouseagain!stormedfather.WithtearswellingupinmyeyesIrushedoutoftheflatandranalongthestreet. Thestreetlightswereshiningcausingrathersad﹣feeling.Iwanderedaimlessly. Ayoungfatherwhoheldachildinhisarmswalkedpastme.IfeltasifIsawmychildhoodfromanotherspacehappyandcarefree. Butnow…Idon'tknowwhetheritisbecauseIhavegrownuporbecausedadisgettingold.Wedifferinourwaysofthinking.Healwaysputhisopinionsandcodesofbehavioronme.WheneverIdosomethingwrongheneveradmitsit.Wearejustliketwopeoplecomingfromtwodifferentworlds.Itfeelslikethereisanirondoorbetweenusthatcanneverbeopened. Iwanderedthestreetswithoutadestinationinmind.Myheartwasfrozenonthishotsummernight.AsIwalkedontherewerefewerandfewerpeopleonthestreetsuntilIhadonlythestreetlightstokeepmecompany.WhenIfinallyreachedthehigh﹣riseapartmentblockinwhichIlivedIsawthatthelightwasstillon. IthoughttomyselfIsfatherwaitingformeorishestillangrywithme? Infactitwasnothing.Perhapsdadwasthrowingawaysomeofhisoldstamps.Perhapshethoughttheywereuseless.IneverhadthecouragetotellhimthatIlikedcollectingstamps.Ican'tstandhisoutrageous蛮横的wordsIcan'tthrowyouawayletalonetheseoldpapers? Allthelightswereoffexceptfather's. Dadwasalwayslikethis.Maybehedidn'tknowhowtoexpresshimself.Aftershoutingatmehenevershowedanymercyoranymomentsofregret.Afteranargumenthehasthehabitofcreeping蹑手蹑脚upinmysleepandthentucking掖盖meunderneaththecovers. Thiswashowhealwayswas.Hehasbeenaleaderforsolongthattellingeveryoneelsewhattodohasbecomehissecondnature. Thelightwasstillon.AmIwrong?Iwhisperedmaybe…WiththekeyinhandIwasasnervousasIhadeverbeen.AtlastIdecidedtoopenthedoor.AssoonasIopenedthedoortearsrandownmycheeks.IsuddenlyrealizedthattheirondoorthatIhadimaginedbetweenusdidnotexistatall.Love﹣itsecondtonone. 1Decidewhichisthebestorderofthefollowingaccordingtowhathappenedinthepassage. a.Iopenedthedoorandenteredthehouse. b.SadlyIranoutintothestreet. c.IreachedtheplacewhereIlivedandsawmyhousestillbrightlylit. d.Ithoughtofmyfather'skindnesstowardsme. e.Iwalkedaboutinthestreetwithoutanyaim. A.bedca B.beacd C.becad D.becda 2Whydoyouthinkthefatheroftenshoutsathisson? A.perhapsthefatherisgettingolderandolder. B.perhapsthesonhasalreadygrownup. C.perhapstheyneveragreewitheachother. D.perhapsthefatherhasgotusedtodoingthat. 3Whatconclusioncanyoucometoafterreadingthepassage? A.Thefathertreatshissoninanunfairway. B.Thefatherisactuallykindtohisson. C.Thefatherisneitherkindnorcrueltohisson. D.Thefatherisalwaysfindingfaultwithhisson.
HowtoBecomeCleverer Onceaboycametoaskafishermanhowtobecomeclevererbecausehismotheralwayscalledhimfoolishboy. That'seasyansweredthefisherman.Iknowonewaytomakeyoubecomecleverer. Really? Ofcourse.Itissaidafishheadisgoodforbrain.Ifyoueatoneyou'llbecomeclevererindeed.Payonlythreepoundsforonefishhead.Theboypaidhimthreepoundsandthefishermancutoffafishheadandhandedittohim. Arawfishheadisnotgood﹣notevenforahungryboytoeatbuttheboyateitupintwogulps. Doyoufeelanything?askedthefisherman. Notinmyheadsaidtheboy. Theboylayonthegroundandthought.Onewholefishcostsonlytwopounds.Ihadpaidhimthreepoundsforthefishhead.Whycouldn'tIhavethewholefishforsoupaheadforbrainandonepoundleftover?Hejumpedupandshoutedatthefisherman.Youthief!Youarefoolingme!ThefishermanlaughedsayingThefishheadworksnowyousee. 1Theboyateuptherawfishheadonlyintwogulpsbecausehe. A.enjoyit B.wantedtotasteit C.tookitasagoodmedicine D.wasafoolishboy 2Theboycametothefishermaninorderto. A.buyafishhead B.askthefishermanaquestion C.buyawholefish D.AandC 3Theboypaidthreepounds.Heshouldhavehad. A.awholefish B.afishheadandonepoundback C.awholefishandonepoundback D.awholefishafishheadandonepoundback 4helpedtheboybecomecleverer. A.Agoodmeal B.Therawfishhead C.Nothing D.Whathadhappened
NoticeforTouriststoBeijingExpo2019 The2019BeijingHorticulturalExpo园博会fromApril29toOctober7isanopportunityforinternationaldiscoverywhereculturalelementsofdifferentplacesinChinaareondisplayaswellasgardensandbuildingsabouteachcountry'swonderfulcultureandhistory.Hereisanoticeforwhoeverplanstocome. QuickEntrybyShowingIDCards TomakesureyourquickandorderlyentryintotheExpoSite.pleasewaitinlinesandgetyourIDcardreadyforpre﹣checkticketcheckandsecurityinspectionbeforeentering.Duringtheticketcheckthosewhoholddiscountedticketsmustprovidethematerialsaboutdiscount. SafeTourtotheExpo Consideringyourpersonalsafetypleasedon'ttakeanythingthatmaydisturbothervisitorsortheorderoftheExpoSitesuchaspetskitesandspeakers.Exceptforwheelchairsfortheelderlyandthedisabledandstrollers婴儿推车forchildrennovehicles机动车辆areallowedtoentertheExpoSite TakingActiontoProtecttheEnvironment Tocreateagreenbeautifulenvironmentforyourselfandotherspleasefollowthetravelrules.protectpublicbuildingskeepenvironmentcleanandcareplantsgrowingintheExpoSite.Behaviorssuchasclimbingordestroyingstructuresandexhibitsarenotpermitted. OrderlyTravelbyLimitingtheNumber ForthesafetyofvisitorssometimesstaffmembersmaylimitthenumberoftouristsintosomegardensandbuildingsintheeventofovercrowdingThankyouforyourunderstanding. EnjoyingServiceandHavingFun TouristservicecentersintheExpoSiteprovideservicesincludinginformationinquiry查询storageofpersonalbelongingswheelchairandstrollerrentinglostfoundserviceandsearchformissingpersons.WehopeyouhaveagoodtimeattheExpo. Youcancalltheservicehotlineat86﹣10﹣86484017forinquirysuggestionorcomplaint.Thanksforyourattention. 1WhichofthefollowingisallowedtoentertheExpoSite? A.Wheelchairs. B.Dogs. C.Trucks. D.Cars. 2WhichserviceisNOTprovidedbythetouristservicecentersintheExpoSite? A.Strollerrenting. B.Informationinquiry. C.Sellingthesouvenirs. D.Lostfoundservice. 3Whatcanwelearnfromthepassage? A.Visitorscanbuyticketsonline. B.Thenumberofthetouristsisnotlimited C.Whoeverclimbsthestructurewillgetfined. D.VisitorsshouldshowIDcardbeforeentering
Tobeagoodteacheryouneedsomeofthegiftsofagoodactoryoumustbeableto1theattentionandinterestofyourstudentsyoumustbea2speakerwithagoodstrongpleasingvoicewhichisfullyunderyourcontrolandyoumustbeableto3whatyouareteachinginordertomakeitsmeaningclear. Watchagoodteacherandyouwillseethathedoesnotsitstill4hisclasshestandsthewholetimeheisteachinghewalksaboutusinghis5handsandfingerstohelphiminhisexplanationandhisfacetoexpressfeelings.Listentohimandyouwill6theloudnessthequalityandthemusicalnoteofhisvoicealways7accordingtowhatheis8about.Thefactthatagoodteacherhassomeofthegiftsofagoodactordoesn't9thathewillindeedbeabletoact10onthestageforthereareveryimportant11betweentheteacher'sworkandtheactor's.The12hastospeakwordswhichhehaslearntbyhearthehastorepeatexactlythe13wordseachtimeheplaysacertainpart14hismovementsandthewaysinwhichheuseshisvoiceareusually15beforehand.事先预先Whathehastodoistomakeallthesecarefullylearntwordsandactionsseemnaturalonthestage. Agoodteacher16inquiteadifferentway.Hisstudentstakeanactivepartinhis17theyaskandanswerquestionstheyobeyordersandiftheydon't18somethingtheysaysorry.Theteacherthereforehastosuithisacttotheneedsofhisstudentswhichisinhisclass.Hecan'tlearnhispartbyheartbutmust19itashegoesalong. Ihaveknownmanyteacherswhowerefine20inclassbutunabletotakepartinastage﹣playbecausetheirbrainswouldn'tkeepdisciplinetheycouldnotkeepstrictlytowhatanotherhadwritten. 1A.play B.hold C.give D.know 2A.clear B.slow C.quick D.loud 3A.act B.talk C.say D.report 4A.for B.before C.behind D.arms 5A.tongues B.word C.legs D.arms 6A.hear B.see C.think D.guess 7A.making B.changing C.expressing D.giving 8A.talking B.thinking C.hearing D.saying 9A.tell B.express C.show D.mean 10A.carefully B.badly C.well D.actively 11A.things B.differences C.points D.similarities 12A.actor B.teacher C.audience D.student 13A.different B.same C.above D.following 14A.just B.never C.ever D.even 15A.read B.known C.fixed D.written 16A.talks B.works C.teaches D.thinks 17A.groups B.party C.play D.class 18A.give B.place C.obey D.hear 19A.create B.discover C.teach D.continue 20A.speakers B.watchers C.actors D.listeners
Everyfestivalhasitsownmeaning.LaborDay.forexamplecelebratesthevalueofhardwork.Thanksgivingisaboutshowingthankstopeoplearoundyou.AndValentines'DayisatimewhenyouexpresslovetoyourlovedonesButsomehowitnowseemsthatallfestivalswejustaboutonething﹣shopping.Andthatcanbeabigproblem. Inawayover﹣consumption过度消费isthemotherofallourenvironmentalproblems.KalleLasnoncetoldCNN.LasnistheorganizerofBuyNothingDayadaysetupinCanadain1992tofightagainstunhealthyspendinghabitsandhasnowbecomeaninternationalevent.It'shelonthedaywhichisknownasBlackFridny﹣afamousshoppingdayintheUSandCanada. Youcanseetheirony讽刺here. EventhoughtheideaofBuyNothingDaywasbroughtup26yearsagoweseemtoneeditnowmorethaneverIt'sjustasLasnsaidallthedifferentkindsofpollutioninourlivestodaybadairqualitythereductionofforestareaendangeredanimalspeciesandplasticbagsfoundintheocean﹣seemtobethesamecauseover﹣consumption. ThelatestexampleistheSingles'DayshoppingcrazeofNov1l.whichsawanewsalesrecordButasNieLiacampaigneratGreenpeacetoldReuters.Record﹣settingover﹣consumptionmeansrecord﹣settingwaste.AnditwasreportedthatlastyeartheSingles'Daypackagesleftmorethan160000tonsofwasteincludingplasticandcardboard.TheCollinsdictionaryhasalsojustnamedsingle﹣useitsWordoftheYearpointingouttheproblemthatthere'retoomanythingswetowoutafteronlyusingthemonce. SoBuyNothingDaymightonlybehereforonedayayearbutit'snotjusttoremindustotheabreakfromshoppingonthatdaybuttochangeourlifestylecompletelyfocusingonfunwithpeoplewecareaboutratherthanwastingmoneyonuselessthings. 1What'stheauthorspurposeofwritingthefirstparagraph? A.Toexpressthepeople'sloveforallfestivals. B.Totalkaboutthemeaningofthefestivals. C.Toappreciatethevalueofthefestivals. D.Tobringoutthetopicofthepassage. 2WhydidKalleLasnorganizeBuyNothingDay? A.Tohelppeoplesavemoney. B.Tocutthecostfordailylife. C.Topreventover﹣consumption. D.Tosetupanewsalesrecord. 3What'sNieLi'sattitudetowardstheshoppingcraze? A.Opposed反对的. B.Supportive. C.Unknown. D.Neutral中立的. 4Whatcanbeasuitabletitleforthepassage? A.CreatingaNewLifestyle. B.BuyNothingDay. C.FestivalsAroundtheWorld. D.AChangeinPeople'sLife.
此题要求改正所给短文中的错误.如有错误则按下列情况改正 删除此行多一个词把多余的词用斜线\划掉 增加此行缺一个词在缺词处加一个漏字符号Λ 修改此行错一个词在错的词下划一横线并在该行下边写出改正后的词. 注意1.每处错误及其修改均仅限一词 2.只允许修改10处多改者从11处起不计分 MyinteresthadbeeninbooksinsteadofinfoodsinceIwenttohighschool.InthepastIwasrealinterestedinallkindsoffood.InsummerIlikedtobuyicecreamandcolddrinksandinwinterIliketobuysweetsandsomeanotherfood.WheneverIwentforawalkwithmyparentIwouldaskthembuymesomething.HoweverafterIwenttohighschoolIfoundIwasputtingonmyweight.SoIgaveupthehabitofeatingandbeginningtospendmoneyinallkindsofbooksandmyparentsarealwayscomplainingthatIamamoneyspender!
Goodtimemanagementallowsyoutocompletemoreinashorterperiodoftimelowerstheamountofpressure压力andleadstocareersuccess.Hereissomeadviceforyou. Makeaplan Listallthetasksthatareimportant1Nexthighlightthetasksonyourlisttoshowtheirurgency紧急.Thenfocusonlyononeitematatimeandenjoythepleasureofcrossingoffthecompleteditems. Stayawayfromdistractions分散注意力的事 Thoughthee﹣mailandsocialmediaareimportanttoyoureverydaycommunicationtheyrequiremuchofyourattention.2 Learntosayno 3.Althoughsayingnotosomeoneolderthanyouismuchmoredifficultit'simportanttobehonestandtolookafteryourhealth.Sharingyourlistwithhim/herwillhelptorefusetheadditionalwork. Giveyourselfabreak Don'tbehardonyourself.Youwillactuallyperformbetterifyoutakebreak4.Theworldwillnotfalldownifyouputoffopeningsomee﹣mails. Improveyourplan 5Remakeyourplanandtakeoffthedistractingtaskstofocusonasolution.Dealingwithproblemsinthefaceoftimepressurewillbeoneofyourmostvaluableexperiencesinyourfutureemployment. A.Trynottodomoreworkifpossible B.Takingbreaksisgoodforyourbrains C.Behonestwithyourselfaswellasothers D.Avoidlookingatyourworke﹣mailswhennotworking E.Writethemdownanddon'tjustrelyonyourmemory F.Reviewyourworkplanregularlywhenthingsarenotgoingwell G.Shutthemoffasyouworkonataskrequiringyourfullattention
IhaveafriendnamedMontywhoownsahorseranch牧场.Onedayhetoldmeastory. Therewasayoungmanwhowasthesonofahorse1.Hisfatherhadtogofromtheirhousetoranchtraininghorses. Onedaytheboy*steacheraskedthestudentsto2apaperaboutwhattheywantedtobeanddowhentheygrewup.Thatnighttheboyfinishedaseven﹣pagepaper3hisdreamofowningahorseranch.Heevendrewa4ofa4000﹣square﹣foothouse.Buthe5gotaredFonthefirstpage.Theboywiththedreamaskedhisteacher‘WhydidIreceiveanF?'Theteachersaid.Thisisan6dreamforayoungboylikeyou.Owningahorseranchneedsalotof7.There'snowayyoucouldeverdoit.'Thentheteacher8‘IfyourewritethispaperwithamorerealisticdreamIwillgiveyouamorerealistic9.' Theboywenthomeandaskedhisfatherwhatheshoulddo.Hisfathersaid‘Looksonyouhavetomakeyourown10.' Finallytheboy11thesamepapermakingnochangeatall.Hesaid‘You12keeptheFandI'llkeepmydream.' MontythenlookedatmeandsaidItellyouthisstory13youaresittinginray4000﹣square﹣foothouseinthemiddleofmy200﹣acrehorseranch.HecontinuedTwosummersagothe14teacherbrought30kidstocampoutonrayranchforaweek.Whentheteacherwasleavinghesaid‘LookMontyIcantellyouthisnow.WhenIwasyourteacherIwasadream15.DuringthoseyearsIstolealotofkids'dreams.16youhadnotgivenyoursup. Don'tletanyonestealyourdream.17yourheartnomatterwhat.Youcanachieve18youwantinlifeifyouhavethe19todreamittheintelligencetomakearealisticplanandthe20toseethatplanthroughtotheend. 1A.keeper B.farmer C.driver D.trainer 2A.copy B.write C.check D.recite 3A.describing B.spreading C.realizing D.predicting 4A.conclusion B.line C.circle D.picture 5A.also B.just C.really D.still 6A.unrealistic B.strange C.funny D.common 7A.knowledge B.practice C.money D.creation 8A.requested B.warned C.repeated D.added 9A.opinion B.grade C.impression D.suggestion 10A.decision B.promise C.standard D.living 11A.setdown B.gaveout C.handedin D.toreup 12A.must B.can C.should D.dare 13A.when B.although C.until D.because 14A.particular B.devoted C.experienced D.same 15A.stealer B.maker C.holder D.leader 16A.Hopefully B.Fortunately C.Surprisingly D.Sadly 17A.Follow B.Search C.Take D.Feel 18A.nothing B.however C.anything D.wherever 19A.energy B.patience C.wisdom D.courage 20A.lime B.will C.skill D.chance
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Althoughmostparentsdon'tlikedoingitafteralongandexhaustingworkdayreadingbedtimestoriesdoesmakeapositiveinfluenceonyourchild'semotionalandmentalhealth.1 Ithelpstodevelopchildren'simagination. Readingbedtimestoriescandevelopyourchildren'sabilitytoformpicturesorideasintheirmind.Ahealthyimaginationmakestheirmindsworkwellandteachesthemtothinkquicklyyeteffectively.2 Itimproveschildren'slanguage. Readingalsoimprovesyourchildren'slanguage.3They'llmostlikelyusethosewordsinthestoriesyoureadrightaftertheyhearthem.Listeningtomanystorieshelpskidstoexpresstheiropinionsbetter. 4 Readingbooksmakespeoplemorelearned.Whenchildrenhearthestoriesyoutelltheylearngrammarandvocabularyforexample.Ithelpsthembesuccessfulinschoolastheyalreadyknowalotfromyourstories.What'smoreeverystoryhasitsmoralaspectandtellsthemwhat'sgoodandwhat'sbad. Thesereasonsleavenochancesofdoubtingwhethertoreadbedtimestoriestoyourchildrenornot.5TheywillthankyouinfutureIpromise. A.Itfosterschildren'saffectionforreading. B.Itmakeschildrenknowledgeable. C.Takealookatthebestbenefitsofitandyou'llneverbelazytodothat. D.Sohowevertiredyouarefindtimetoreadbedtimestoriestoyourchildren. E.Bedtimestoriescreatejustunforgettablemoments. F.Theyremembermostwordsyousayandenlargetheirvocabulary. G.They'llbesuccessfulinmanyaspectsthankstoawonderfulimagination.
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Childrenshouldnotbeallowedtowatch暴力的movies.
Whatwillhappentoyouifyoudon'teata平衡的diet?
InModemsocietythereisagreatdealofargumentaboutcompetition.Somevalueithighlybelievingthatitisresponsibleforsocialprogressandprosperityotherssaythatcompetitionisbadthatitsetsonepersonagainstanotherthatitleadstounfriendlyrelationshipbetweenpeople. Ihavetaughtmanychildrenwhoheldthebeliefthattheirself﹣worthreliedonhowwelltheyperformedattennisandotherskills.Forthemplayingwellandwinningareoftenlife﹣and﹣deathaffaire.Intheirsingle﹣mindedpursuit追求ofsuccessthedevelopmentofmanyotherhumanqualitiesissadlyforgotten. Howeverwhilesomeseemtobelostinthedesiretosucceedotherstakeanoppositeattitude.Inaculturewhichvaluesonlythewinnerandpaysnoattentiontotheordinaryplayerstheystronglyblamecompetition.Amongthemostvocalareyoungsterswhohavesufferedundercompetitivepressuresfromtheirparentsorsociety.TeachingtheseyoungpeopleIoftenobserveinthemadesiretofail.Theyseemtoseekfailurebynottryingtowinorachievesuccess.BynottryingtheyalwayshaveanexcuseImayhavelostbutitdoesn'tmatterbecauseIreallydidn'ttry.Whatisnotusuallyadmittedbythemselvesisthebeliefthatiftheyhadreallytriedandlostthatwoundmeanalot.Suchalosswouldbeameasureoftheirworth.Clearlythisbeliefisthesameasthatofthetruecompetitorswhotrytoprovethemselves.Botharebasedonthemistakenbeliefthatone'sself﹣respectreliesonhowwelloneperformsincomparisonwithothers.Botharcafraidofnotbeingvalued.Onlyasthisbasicandoftentroublesomefearbeginstodissolve化解canwediscoveranewmeaningincompetition. 1Whatdoesthispassagemainlytalkabout? A.Competitionhelpstosetupone'sself﹣respect. B.Peopleholddifferentopinionsoncompetition. C.Failuresarenecessaryexperienceincompetition. D.Competitionisharmfultoone'sdevelopment. 2Whydosomepeoplefavorcompetitionaccordingtothepassage? A.Itpushessocietyforward. B.Itbuildsupasenseofduty. C.Itencouragesindividualefforts. D.Itimprovespersonalabilities. 3Whatisthesimilarbeliefofthetruecompetitorsandthosewithadesiretofail? A.One'ssuccessincompetitioncallsforgreatefforts. B.One'sachievementisdeterminedbyhisparticularskills. C.One'ssuccessrelieslargelyonhisfirmbeliefofwinning. D.One'sworthliesinhisperformancecomparedwithothers. 4Whichpointofviewmaytheauthoragreewith? A.Competition﹣damagesfriendshipamongpeople. B.Performanceincompetitiondeterminesone'svalue. C.Fearoffailureshouldberemovedincompetition. D.Winningshouldbeamaileroflifeanddeath.
现代生物工程技术推动了免疫学畜牧业和生态工程的发展回答下列相关问题 1某高校研发的幽门螺杆菌疫苗为基因工程疫苗实验证明一定时间内间隔口服该疫苗3次效果更好其主要原因是体内产生的细胞数量增多该类细胞在病原体再次进入人体后会迅速增殖分化产生更多的浆细胞进而产生更多的导致获得的免疫预防作用更强持续时间更久． 2对大面积烧伤病人利用自身健康皮肤细胞借助技术可获取大量用于移植的皮肤培养细胞时的条件为的环境合适的营养适宜的温度通入含有95%空气和5%CO2混合气体．CO2的作用是． 3用细胞核移植技术繁育良种牛的过程需要进行胚胎移植移植前需要对供体和受体牛进行处理受体对外来胚胎基本不发生为胚胎在受体内的存活提供了可能． 4依据生态工程的原理黄河三角洲自然保护区的建立需考虑提高农民经济收入使保护环境和经济发展相互协调．
Afterayearatsea16﹣year﹣oldLauraDekkercanfinallysayMissionaccomplished!Lastmonthshefinishedadaringtriparoundtheworldaboardher38﹣footboatGuppy.DekkerwhoisfromtheNetherlandstraveledmorethan30000milesallbyherself.Sheistheyoungestpersonevertosailaroundtheglobealone. Dekkerhadwantedtolakeonthischallengewhenshewasevenyounger.Shefirsttriedtosetsailattheageof13butacourtintheNetherlandsstoppedher.Theysaidthatshewastooyoungtomakesuchariskytripbyherself.ButDekkerinsistedshehadthenavigationskillsandpatienceofanadultsailor. ShefinallytookoffonJanuary202011.DuringhertripDekkerbattledlonelinessstormsandworriesaboutpirates.Butshealsogottosurfscubadiveandstartedanewhobbyplayingtheflute.AlthoughDekkerdidn'tspendallofhertimeatsea﹣shestoppedatportsalongtheway﹣shedidspendher16lhbirthdayontheopenocean.Tocelebrateshealedoughnutsforbreakfast. ButDekkerdidn'tsailintotherecordbooks.GuinnessWorldRecordsandtheWorldSailingSpeedRecordCouncilnolongerrecognizerecordsforyoungestsailors.Theydroppedthecategoryin2009todiscouragechildrenfromattemptingsuchdangerousfeats壮举Butthatdidn'tstopDekkerwhowasbornonayachtduringaseven﹣yearworldvoyageundertakenbyherparents. Dekkerdoesn'tmindthatshewon'tholdanofficialrecord.Shesaysitwasapersonalgoalandsheishappysheachievedit. IamnotdisappointedatallthatGuinnessWorldRecordwon'trecognizemyattempt.Dekkerwroteonherwebsite.Ididnotstartonmytriptoachieveanyrecord…Ididitjustformyself. 1Dekkerwasn'tallowedtosailattheageof13because. A.peoplewereconcernedabouthersafety B.shedidn'tlearnanysailingskillswell C.shehadtocontinueherstudyatschool D.shedidn'thaveenoughpatienceforlongtrips 2WhatdoestheunderlinedwordaccomplishedinParagraph1mean? A.Failed. B.Completed. C.Continued. D.Started. 3In2009recordsforyoungestsailorswerecanceledinorderto. A.setahighersailingstandardforteensailors B.stopchildrenenteringGuinnessWorldRecords C.encourageparentstosailwiththeirchildren D.preventchildrenmakingdangerousattempts 4Whatcouldbethebesttitleforthispassage? A.ANewGuinnessWorldRecordinSailing B.ANewSailingStandardforTeenSailors C.ATeenGirlSailingAloneAroundtheWorld D.TheYoungestSailorinGuinnessWorldRecords
Checkoutthesegreatopportunitiesforfamilyfun. Boo﹣CampJack﹣O'﹣LanterLoreandPumpkinCarving～HalfMoonBay JoinusatBob'sPumpkinFarminHalfMoonBaywherestudentsofallageswilllearnaboutthehistoryofjack﹣o'﹣lantersbeforepickingtheirownpumpkinlearningfuncarvingtechniquesandcarvingtheirownjack﹣o'﹣lanternforHalloween. SaturdayNightAstronomyShowsatFujitsuPlanetarium天文馆～Cupertino LearnaboutspaceandscienceonSaturdayeveningsattheFujistuPlanetariumontheDeAnzaCollegecampus.FamilyshowsincludeSecretoftheCardboardRocketTheLittleStarThatCouldMagicTreeHouseSpaceMissionWeAreStarsThisIsOurSky!andExtremePlanets. HolidayBasketballCamp～MountainView LearnvaluableskillsfromMVHSbasketballcoachesinthishalf﹣daycamp.Shootingballhandlinganddefensewillbeamongtheskillscoveredinahigh﹣energyfast﹣pacedenvironment.Thisisagreatopportunitytohavefunstayactiveandworkonyourgame.Opentoboys&girlsingrades3﹣8thecampwilltakeplace9am﹣12intheMountainViewHighSchool. AGoat'sLifeatHarleyFarms～Pescadero JoinHomeroomEducationforadayoffamilyfunatHarleyFarmsinPescadero.Familieswillgetupclosewithdairygoatsinoneofourmostpopularhands﹣onworkshopsforstudentsofallages.PullonyourbootsandheadouttoHarley Farmstomeetthegoatsandlearnallabouttheirbiologyandecology. 1Wherecanyougoifyou'reinterestedinstars? A.HalfMoonBay. B.HarleyFarms. C.ThefuitsuPlaetriunm. D.MountainViewHighSchool. 2WhatdoesHomeroomEducationoffertofamilies? A.Achanceofpersonalparticipation. B.Aglanceatraisingdairygoats. C.Anexperiencewithbasketballstars. D.Funofcarvingtheirownpumpkins. 3Whattypeofwritingisthispassage? A.Anofficialreport. B.Anexhibitionguide. C.Anactivityreview. D.Anactivityintroduction.
HowtoSaveMoneyEffectively Manyofuswouldliketohavemoneyinsavings.Franklyspeakingadollarspentnowseemstoprovidealotmorepleasurethanadollarsave.1Herearefourthingsthatcouldworkforyou. Savelittleandoften Doyoutellyourselfthatit'snotworthsavingifyoudon'thaveatleast100toputintoasavingsaccount?Thisisabitliketellingyourselfthatit'snotworthgettingsomeexerciseunlessyouhaveawholedaycleartojog.Howaboutsavingjustadollarortwoeachday?Mostofuscancutacoupleofdollarsofunnecessaryspendingeveryday.2.Butoverthecourseofayearyou'llhavesavedseveralhundreddollars. Readpersonalfinanceblogs. IfindthatIgetencouragedtosaveandtoadoptgoodfinancialhabitsingeneralbyreadingaboutothers'tipsandsuccess.OneofmymustreadblogsforthisisTheSimpleDollar.Trentwritesverywellandcoverstopicsin﹣depthwithoutmakingthemtoocomplicated.Healsohasanupbeatandmotivatingattitudetowardssavingsandfinances. Keepasavingslog. Somethingthat'softenrecommendedforthosesortingouttheirfinancesistokeepaspendinglog.Atwistonthisthoughistokeepasavingslog.Eachtimeyoumakeadepositintoyoursavingsaccount.writedownthedateandhowmuchyousaved.3Youcoldalsouseyourcalendarordiaryforthis. 4 Havingaverycleargoalinmindcanmakeitmucheasiertosaveup.Forexampleifyouknowthatyouneed1000forthatnewcomputerorifyou'redeterminedtoreach3000inyouremergencyfund.5.Itcanreallykeepyoumotivated. A.Focusontheendgoal B.Savetowardsaspecificgoal C.Thiscanbedifficultattheverybeginning. D.It'satinyamountthatyoucand&itfromtimetotime. E.Thiscanbeagreatwaytomotivateyourselftosavemore. F.It'satinyamountthatyoullbarelynoticeonadailybasis.. G.Howcanyoumakesureyou'remotivatedenoughtoputmoneyasideonaregularbasis?
他们中许多人都有骑野马的天赋. Manyofthemhavearidingwildhorses.
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. Haveyoueverhadaheadacheduringatest?Haveyoueverbeentooworriedaboutsomethingthatyouhaveaheadacheorevencan'tsleepatnight?Ifsothenyouknowthatstressis. Notallstressisbadforyou.Somekindsofstresscanhelpyougetthingsdobetterlikewhenyouarerunningtowardsthefinishinglineorwhenyouarebeingaskedtogiveaspeechtoyourclass.Stresssometimescanhelppushyoutomakefullpreparationforatest.Howevertoomuchstresscanresultinangerdepressionandotherrelatedproblemswhichweneedtotakeserious. Therearemanythingsinourlifewhatmightcausestress﹣havingtoomuchhomeworktakingadifficulttestandhavingeconomicproblems. It'simpossibletoliveinalifecompletelyfreeofstresssoyoushouldlearntodealwithstress.Thebestwayreducestressistohaveabalancelife.Ifyougetenoughsleepeatproperlytakemoreexerciseandhaveenoughfantimeyou'llprobablyfeellessstressed.
Thebeautifulbeachesaretheisland'smainattract.
It'sdifficulttothinkofabetter﹣knownworkofartthanLeonardodaVinci'sMonaLisa.Michelangelo'sTheCreationofAdamontheceilingoftheSistineChapelcomesclosebutthat'sadetailofahugeworknotaworkofartonitsown.Imagesbymany20th﹣centuryartistslikeSpain'sPabloPicassoandtheUS'AndyWarholarealsoinstantlyrecognizable.HowevernootherpaintingisnearlyasfamousastheportraitinoilsofafashionableyoungladyofFlorenceItaly. Thispaintingisn'tjustfamousbecausetheimageisnowabletobereproducedoverandoveragain.Itsfamehasatleastsomethingtodowiththefactthatit'safinepieceofwork.DaVinciwasaleaderintherevolutioninpaintingintheRenaissanceperiod.TheRenaissancewasmorecenteredaroundhumansthanperviousEuropeanculturewasandtheMonaLisaisafineexampleofRenaissancehumanism.Theworkisaboutaperson.ThewomandaVinicpainteddoesnotrepresentareligiousideabutisanindividualwhomonefeelsthatonecouldtalktoandnow. Andthequestionofwhothewomanishasalwaysinterestedthepublic.Theearliestanswerfrom＝1517isthatshewasjustacertainFlorentineladybutin1550famoushistorianandpainterGiorgioVasarisaidshewasMonaLisathewifeofsilkmerchantFrancescodelGioeondo.OverthecenturiesanumberofotherwomenhavebeenputforthasthemodelincludingasuggestionthatdaVinciusedhimselflookinginamirroraswellastheideasthatshewaspaintedfromdaVinci'simagination.Theworkinvitestheviewer/readertodiscoverforhimselforherselfperhapsinventwhatitmeans. LeonardokeptithimselfandtookitwithhimtoMilanRomeandFranceanduseditasacallingcardsaidLarryFeinbergfromtheArtInstituteofChicago﹣sortofanadvertisementHeylookwhatIpainted!Icanpaintforyoutoo! 1Whydoestheauthorrefertothreeotherartists? A.ToshowtheMonaLisaisveryfamous. B.TocomparedaVinciwithotherpainter C.Tointroducedifferentgreatpainters. D.ToprovenootherpainterisequaltodaVinci. 2WhatisstressedbymentioningtheRenaisance? A.PaintingskillsoftheMonaLisa. B.DifferentattitudestotheMonaLisa. C.TheeconomicvalueoftheMonaLisa. D.Thetradition﹣breakingideaoftheMonaLisa. 3WhathelpedtheMonaLisa'spopularityaccordingtoParagraph3? A.Itsbeingpaintedfromimagination. B.Itsbeingopentointerpretation. C.DaVinci'susinghimselfasthemodel D.Manywomen'sclaimingtobethemodel. 4WhatdoesFeinbergsayaboutdaVinci? A.Hewaseagertopaintforpeople. B.HefellinlovewiththeMonaLisa. C.HemadeafortunethrouglhtheonaTis. D.HeusedtheMonaLisatoearnareputation.
Thatjournalist谈到tohisexperienceinBritainduringWorldWarII.
I'msosorryIdo.apology
Anumbrellaisafoldingclothcoversupportedbywoodenormetalribs伞骨.Thewordumbrella1typicalreferstoagreatinventionofChinausedfor2protectfromrain. TheChinesecharacterforumbrellaisrelatedtotheshapeofarealone3resemblethemodernumbrellaindesign.Someinvestigatorshavesupposedthatitsinvention4createbytyinglargeleavestobranchy﹣likeribs.Othersadvocatethattheideaprobablycamefromthetent5remainsunchangedinformtothepresentday. 6useoftheumbrellawasoftenlinkedtohigh﹣rankinginancientChina.7atleastoneoccasiontwenty﹣fourumbrellaswerecarriedbeforetheEmperor8hewentouthunting.Theumbrella9serveinthiscaseasadefenseagainstrainratherthansun.TheChinesedesignwaslaterbroughttoJapanviaKoreaandalsointroducedtoPersiaandtheWesternworldviatheSilkRoad.TheChineseandJapanesetraditionalumbrellaoften10useneartemplesremainssimilartotheoriginalancientChinesedesign.
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