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如果一条抛物线与x轴有两个交点，那么以这两个交点和该抛物线的顶点、对称轴上一点为顶点的四边形称为这条抛物线的“抛物四边形”． 如图①，抛物线y＝ax2+bx+c（a＜0）与x轴交于A，C两点，点B...
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抛物线y＝x2－mx＋m－2与x轴交点的情况是
无交点
一个交点
两个交点
无法确定
把抛物线向上平移2个单位那么所得抛物线与x轴的两个交点之间的距离是.
已知抛物线y＝－x2＋bx＋c与x轴的两个交点分别为A.m0B.n0且1求此抛物线的解析式2设此抛物
二次函数y=2x2﹣3的图象是一条抛物线下列关于该抛物线的说法正确的是
抛物线开口向下
抛物线经过点（2，3）
抛物线的对称轴是直线x=1
抛物线与x轴有两个交点
如果一条抛物线与轴有两个交点那么以该抛物线的顶点和这两个交点为顶点的三角形称为这条抛物线的抛物线三角
抛物线开口向下
抛物线经过点（2，3）
抛物线的对称轴是x=1
抛物线与x轴有两个交点
已知抛物线y＝x2－2x－8.1试说明抛物线与x轴一定有两个交点并求出交点坐标2若该抛物线与x轴两个
若抛物线y=x﹣m2+2m﹣1m是常数与直线y=x+2有两个交点且这两个交点分布在抛物线对称轴的同
已知抛物线y=x2﹣4与x轴交于AB两点点A在点B的左侧．顶点为点C． 1求直线AC的解析式
二次函数y=2x2-3的图象是一条抛物线下列关于该抛物线的说法正确的是
抛物线开口向下
抛物线经过点（2，3）
抛物线的对称轴是直线x=1
抛物线与x轴有两个交点
把抛物线向上平移2个单位那么所得抛物线与x轴的两个交点之间的距离是
如果一条抛物线y=ax2+bx+ca≠0与x轴有两个交点那么以该抛物线的顶点和这两个交点为顶点的三
±2
±3
2
3
已知关于x的二次函数y=x2﹣2m﹣1x﹣mm+2.1试说明该抛物线与x轴总有两个交点2若该抛物线与
抛物线开口向下
抛物线经过点（2，3）
抛物线的对称轴是直线x=1
抛物线与x轴有两个交点
二次函数的图象是一条抛物线下列关于该抛物线的说法正确的是
抛物线开口向下
抛物线经过点（2，3）
抛物线的对称轴是直线x=1
抛物线与x轴有两个交点
如果一条抛物线y＝ax2+bx+ca≠0与x轴有两个交点那么以抛物线的顶点和这两个交点为顶点的三角
已知抛物线y＝－x2＋bx＋c与x轴的两个交点分别为A.m0B.n0且1求此抛物线的解析式2设此抛物
下列关于抛物线y=﹣x2+2的说法正确的是
抛物线开口向上
顶点坐标为（﹣1，2）
在对称轴的右侧，y随x的增大而增大
抛物线与x轴有两个交点
已知抛物线的函数解析式为y=x2-2m-1x+m2-m.1求证此抛物线与x轴必有两个不同的交点2若此
对于抛物线y=ax2+bx+ca≠0有下列说法①当b=a+c时则抛物线y=ax2+bx+c一定经过一
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Astrongmemorydependsonthehealthandvitality活力ofyourbrain.Theysaythatyoucan'tteachanolddognewtricksbutwhenitcomestothebrainscientistshavediscoveredthatthisoldsayingsimplyisn'ttrue.1 Giveyourbrainaworkout.Memorylikemuscularstrengthrequiresyoutouseitorloseit.Themoreyouworkoutyourbrainthebetteryou'llbeabletoprocessandrememberinformation.2 Don'tskipthephysicalexercise.Whilementalexerciseisimportantforbrainhealththatdoesn'tmeanyouneverneedtobreakasweat.Physicalexercisehelpsyourbrainstaysharp.Itincreasesoxygentoyourbrainandreducestheriskfordisordersthatleadtomemoryloss. Getenoughsleep.Thereisabigdifferencebetweentheamountofsleepyoucangetbyonandtheamountyouneedtofunctionatyourbest.3 Keepstressincheck.Stressisoneofthebrain'sworstenemies.Overtimestressdestroysbraincells.Studieshavealsolinkedstresstomemoryloss. Havealaugh.4Thatholdstrueforthebrainandthememoryaswellasthebody.Unlikeemotionalresponseswhicharelimitedtospecificareasofthebrainlaughterengagesmultipleregionsacrossthewholebrain. 5Justasthebodyneedsfuelsodoesthebrain.Youprobablyalreadyknowthatadietbasedonfruitsvegetableswholegrainshealthyfatsandleanproteinwillprovidelotsofhealthbenefitsbutsuchadietcanalsoimprovememory.Forbrainhealththoughit'snotjustwhatyoueat﹣it'salsowhatyoudon'teat. A.Eatabrain﹣boostingdiet. B.Playgameswithmemory. C.Laughteristhebestmedicine. D.Butoversleepingisnotgoodforyourbrain. E.Evenskippingafewhoursmakesadifference! F.Youhavetoshakethingsupfromtimetotime! G.Thehumanbrainhasanastonishingabilitytoadaptandchange.
以下所列家庭常用的调味品中与水充分混合后不能形成溶液的是
LastOctoberItoldmypupilsinPomptonSchoolaboutmyplan.I'dlikeyoutodojobstomakesome1Isaid.Thenwe'llbuyfoodforsomeoneinneed. Iwantedthemtoexperiencethatit's2togivethantoreceive.Ihopedtheycouldexperienceasenseoftheirownabilitytomakeachange. EarlyinThanksgivingweekthechildrencouldn'twaitto3.Beforepayingforthe turkeyandotherfoodwechoseinthesupermarketKristinecried. Flowers!Andthegroupallrantowardtheholiday4. Youcanteatflowers!Isaid5.Afterallitwashelpfultobuymorefood. ButMrs.Sherlockcametheloud6wewantflowers. Inthemiddleoftheplantstherewasapotofunusuallypurplemums.7willlikethisone.thechildrenagreed. 8theaddressofapoorgrandmotherwhohadlivedaloneforyearswesetoff.An hourlaterwestoppedinfrontofasmallhouse.Athinwomanwitha9facecametomeetus. Asthekidscarriedallthefoodintheoldwomanoohedandaahed﹣muchtohervisitors'pleasure.WhenAmyputthemumsonthetablethewomanseemed10.She'swishingitwasabagoffoodIthought. 11isyourclosefriendinthewoods?Michaelasked. Thewomanbrightened.Thebirds.Theyoftenflyoverforfood12Isharemybreadwiththemshesaid. Thenwereturnedtothecar.Throughthewindowwesawherwalkpasttheturkeystraighttothe13.Sheputherfaceinthemandlookedupwithabigsmile.Shewas14beforeoureyes. Inthatoneshortmomentthechildrenhadseenforthemselvesthe15theyownedtomakeachange.SometimesapersonneededapotofnicepurpleflowersonadarkNovemberday. 1A.friends B.mistakes C.money D.room 2A.cheaper B.better C.safer D.funnier 3A.takeawalk B.dohousework C.havearest D.goshopping 4A.cards B.camps C.plants D.photos 5A.unhappily B.warmly C.carelessly D.freely 6A.voice B.music C.sound D.noise 7A.He B.I C.You D.She 8A.At B.With C.In D.After 9A.proud B.fat C.sad D.handsome 10A.relaxed B.bored C.worried D.surprised 11A.Who B.How C.Why D.Where 12A.although B.but C.because D.if 13A.books B.flowers C.woods D.rooms 14A.changed B.broken C.treated D.refused 15A.habit B.ability C.interest D.courage
化学与生活息息相关我们的衣食住行都离不开化学． 1下列服装所使用的材料中属于有机合成材料的是填字母序号． 2人们通过食物获取各种营养素． ①水果和蔬菜富含的营养素是该营养素可以起到调节新陈代谢等作用． ②为了防止骨质疏松人体每日必须摄入足够量的元素． 3二氧化钛TiO2可制作用于家装的白色涂料其中Ti的化合价为． 4汽车是重要的交通工具． ①汽车使用天然气作燃料排放污染较低．天然气的主要成分为． ②完成车用铅酸电池充电的反应2PbSO4+2H2OPb+2H2SO4+．
Textingwhiledrivingisagainstthelawin47states.Butwhatabouttextingwhilewalking?A2018studyreportedthatmorethan2500peopleintheUSendedupinhospitalsresultingfromusingamobiledevice设备whilewalking. Hawaiipassedalawmakingitillegal违法的totextorlookdownatamobiledevicewhilecrossingthestreet.Itisthefirststatewithalawlikethis.Dopeoplethinkmoreplacesshouldacceptsuchalaw?TheLATimesdidasurvey.Herearesomerepliestheyreceived. 1Accordingtothepassageinitisagainstthelawifpeopletextwhilecrossingthestreet. A.Alaska B.California C.Hawaii D.NewYork 2TheLATimesdidthesurveymostprobablyto. A.wintheheartsofmorereaders B.encouragemorestatestopassthelaw C.askreadersiftheyagreewithtextingwhiledriving D.learnaboutpeople'sopinionsontextingwhilewalking 3InRena'sreplysheshowedthedangeroftextingwhilewalkingby. A.usingnumbers B.givingexamples C.askingquestions D.tellingstories 4WhichofthefollowingisAndrewBlack'sopinion? A.Textingismoreimportantthansafety. B.ThelawwouldhelptokeepAmericanssafe. C.It'seasytopleaseeveryonewhenpassingalaw. D.Whethertotextornotwhilewalkingispeople'sownchoice.
Sometimespeoplecomeintoyourlifeandyouknowrightawaythattheyaremeanttobethere.Theyservesomesortof1toteachyoualessonorhelp2whoyouareorwhoyouwanttobecome.Youneverknow3thesepeoplemaybe﹣﹣﹣yourroommateneighborprofessorlong﹣lostfriendloverorevenacomplete4butwhenyoulockyoureyeswiththemyouknowatthatverymomentthattheywill5yourlifeinsomedeepway. Andsometimesthingshappentoyouandtheymayseem6horribleandunfairatthetimebut7overcomingthesedifficultiesyouwouldhaveneverrealizedyourpotentialstrengthwillpowerorheart.Everythinghappensforan8.Nothinghappensbychanceor9goodorbadluck.Illnessinjurylovelostmomentsoftruegreatnessandstupidity﹣﹣﹣alloccurto10thelimitsofyoursoul.Withoutthesesmalltestslifewouldbelikeasmoothlypavedstraightflatroadtonowhere.Safeandcomfortablebutdulland11. Thepeopleyoumeetwhoaffectyourlifeandthesuccessand12youexperience﹣﹣﹣theyaretheonesthatcreatewhoyouare.Eventhe13experiencescanbelearnedfrom. Ifsomeonehurtsyoubetrays背叛youorbreaksyourheart14themfortheyhavehelpedyoulearnabout15andtheimportanceofbeing16aboutwhomyouopenyourheartto.Ifsomeonelovesyoulovethemback17notonlybecausetheyloveyoubutbecausetheyareteachingyoutoloveandopenyourheartandeyestothingsyouwouldhave18seenorfeltwithoutthem. Makeeveryday19.Appreciateeverymomentandtakefromiteverythingthatpossiblycanforyoumayneverbeabletoexperienceitagain. Peopleareliketeabags﹣﹣﹣youhavetoputtheminhotwaterbeforeyouknowhow20theyare. 1A.way B.plan C.purpose D.idea 2A.figureout B.giveout C.takeout D.sortout 3A.what B.who C.which D.where 4A.child B.teacher C.classmate D.stranger 5A.affect B.create C.design D.ruin 6A.important B.common C.painful D.practical 7A.after B.on C.by D.without 8A.change B.reason C.effect D.return 9A.bymeansof B.onbehalfof C.intermsof D.withregardto 10A.improve B.decrease C.test D.set 11A.meaningless B.rough C.changeable D.winding 12A.decisions B.failures C.achievements D.lessons 13A.unforgettable B.bad C.unusual D.interesting 14A.appreciate B.ignore C.desert D.forgive 15A.independence B.bravery C.trust D.selflessness 16A.enthusiastic B.cautious C.crazy D.worry 17A.unconsciously B.unconditionally C.carefully D.differently 18A.always B.never C.seldom D.sometimes 19A.count B.mind C.work D.vary 20A.expensive B.fresh C.precious D.strong
短文中共有10处语言错误每句话最多两处错误.错误涉及一个单词的增加删除或修改. 增加:在此处加一个漏字符号∧并在其下面写出增加的词; 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其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处多者从十一处起不计分. Whatmakessmartlearners?Smartlearnersthinkeveryminuteimportantlyandmakefulluseofthem.Inclasstheyalwaysplaytheactiveroleandlistentoteacherscarefullyinordernotmissanykeyinformation.Afterclasstheykeepthehabitofreviewtheirlessonsanddoingtheirhomeworkcareful.Besidessmartlearnerslikediscussingaboutstudyproblemswithbothteachersandfriendssuchthattheycansolvethem.Ihopedallofuswillfindasuitablelearningmethodandhavealotoffunslearning.
下列依据实验目的所设计的实验操作中正确的是
WhilewaitingtopickupafriendattheairportIhadoneofthoselife﹣changingexperiences﹣thekindthatsneaksuponyou1. Inoticedamanwithtwobagsstoppedrightnexttometo2hisfamily.Firsthemotionedtohisyoungersonmaybesixyearsoldgivinghimalonglovinghug.Asthey3enoughtolookineachother'sfacethefathersaidSogoodtoseeyouson.Imissedyoumuch!SmilingthesonrepliedsoftlyMetooDad.ThenthemanstoodupgazedintheeyesofhisoldersonmaybenineortenYou'realreadyquitetheyoungman.Iloveyouverymuch.Theytoohuggedamostlovingtenderhug. Meanwhileababygirlperhapsoneyearoldwasexcitedinhermother'sarmsnevertakinghereyes4thewonderfulsightofher5father.ThemansaidHibabygirl!andgentlytookthechildfromhermother.Hekissedherfaceandheldherclosetohischestwhile6herfromsidetoside.AftermomentshehandedhertohisoldersonanddeclaredI've7thebestforlast!andproceededtogivehiswifethelongestandmostpassionatekiss. Thentheystaredateachother'seyes8.Foraninstantthey9meofnewlyweds新婚butIknew10theageoftheirkidsthattheycouldnotpossiblybe.Ipuzzledaboutitforamomentandthenrealizedhowtotally11Iwasinthewonderfullydisplayofunconditionallove.Isuddenlyfelt12asifIwasinvadingsomething13butwasamazedtohearmyownvoicenervouslyaskedWow!Howlonghaveyoubeenmarried? Beentogetherfourteenyearstotalmarriedtwelveofthose.herepliedstaringather. Thenhowlonghaveyoubeenaway?Iasked.ThemanfinallyturnedtomesayingTwowholedays. Iwas14.BytheirgreetingIhadassumedhe'dbeengonefor15afewweeks﹣ifnotmonths.Iknowmyexpression16me.Toeasethe17IsaidIhopemymarriageisstillthatpassionateaftertwelveyears.Hesuddenlystoppedsmilinglookedmestraightintheeyeandsaidsomethingthat18meanotherperson. Don'thopefriend…decide!thenheflashedmewithhiswonderfulsmileagain. Iwasstillwatchingthatexceptionalmanandhisfamilywalkoutof19whenmyfriendcameuptomeandaskedWhatareyoulookingat? Withouthesitatingandwithacurioussenseof20IrepliedMyfuture! 1A.attackingly B.unfortunately C.unexpectedly D.immediately 2A.greet B.Pickup C.accept D.send 3A.loved B.separated C.left D.walked 4A.off B.from C.Outof D.away 5A.interesting B.laughing C.returning D.kissing 6A.rocking B.shaking C.moving D.walking 7A.had B.left C.saved D.bought 8A.sobbing B.laughing C.smiling D.crying 9A.made B.told C.informed D.reminded 10A.of B.by C.about D.to 11A.absorbed B.involved C.strange D.silly 12A.unkind B.friendly C.responsible D.uncomfortable 13A.sacred B.mysterious C.strange D.classified 14A.apologetic B.stunned C.defeated D.sorry 15A.atmost B.shortly C.atleast D.atbest 16A.betrayed B.shocked C.turned D.laughedat 17A.excuse B.fact C.fault D.embarrassment 18A.found B.left C.kept D.showed 19A.room B.town C.love D.sight 20A.sadness B.certainty C.happiness D.disappointment
WorldBookDay1fallonApril23everyyear.ItwassetupbytheUNESCO联合国教科文组织in1955toencouragepeopletodiscoverthepleasureofreading.Itmeansyoureadabooknotbecauseyourteachersorparentstellyoutodoso.2readforpleasureplaysamoreimportantroleinone's3growthanone'sfamilybackground. Booksmagazinesnewspapersandotherkindsofmaterialscanhelpusknowmoreabouttheoutsideworldandperfectus.4computergamesonlinevideosandInterestarepushingbooksofftheshelf.Someexpertsbelieveit'sa5worrytrend.EachChineseread0.38morebooksin2013than2012butstillfarfewerthanthoseinmajordevelopedcountries.Evenworsemanybookstores6closetheirdoorsbecausemanybookloversstarttobuy7fewbooksthanbefore. Howevermanypeopledostillpreferreadingbecauseithas8bepartoftheirlife.Itcanbenefitpeopleinmanyways.Itgivesusinformationaboutothercountriesandplacesoftheworld.It9hasastronginfluenceonformingourpersonalityandmakesusmoreintelligent.It's10toolatetostartreading.Sojumpintothewonderfulworldofboosnow!
SuHuaisstudyingatCambridgeUK.Shehasboughtabicycleandisworriedaboutsecurity安全.HerfriendKatefoundthisarticleandsentittoher. 1Whichpartofthetextgivesyouinformationonhowtolockupyourbicyclewhenyouleaveit? A.Locks. B.Marking. C.Registration. D.BasicSecurity. 2Theunderlinedphraseactasadeterrenttoathiefmeans. A.helpyourecognizeyourbike B.helpthepolicefindyourbicycle C.stopsomeonestealingyourbicycle D.stopyouworryingaboutyourbike 3Themainpurposeofthisarticleis. A.totellyouwhattodoifyourbicycleisstolen B.tosuggestwaysofkeepingyourbicyclesafe C.togiveyouadviceonwheretobuyagoodlock D.tosaywhyyoushouldn'tkeepyourbicycleinaquietplace
下列化学肥料中属于复合肥料的是
Careersuccesscouldbepredictedasearlyaskindergartenaccordingtoa20﹣yearstudyrecentlypublishedintheAmericanJournalofPublicHealth. ResearchersfromPennsylvaniaStateUniversityandDukeUniversitytrackedmorethan700childrenfromacrosstheUSbetweenkindergartenandage25andfoundasignificantcorrelationbetweentheirsocialskillsaskindergartnersandtheirsuccessasadultstwodecadeslater. In1991teachersassessedhowthekindergartnersinteractedwitheachothersociallyusingarangeofcriterialikewhethertheycooperatewiththeirpeerswithoutprompting激励ifthey'rehelpfultootherswhetherthey'regoodatunderstandingfeelingsandiftheycansolveproblemsontheirown. Researchersthenkepttrackofwhetherthestudentswentontograduatehighschoolontimegetacollegedegreeandfindandkeepafull﹣timejobby25.Theyalsomonitoredtheparticipants'involvementwithcrimedrugabusepublicassistanceandmentalhealthissues. Theresultsshowedthatsociallycompetentchildrenwerefarmorelikelytoearnacollegedegreeandhaveafull﹣timejobby25thanthosewithlimitedsocialskills.Thosewithlimitedsocialskillsalsohadahigherchanceofgettingarrestedbinge放纵drinkingandapplyingforpublichousing. ThisstudyshowsthathelpingchildrendevelopsocialandemotionalskillsisoneofthemostimportantthingswecandotopreparethemforahealthyfuturesaidKristinSchubertprogramdirectorattheRobertWoodJohnsonFoundationwhichfundedtheresearchinarelease. Fromanearlyagetheseskillscandeterminewhetherachildgoestocollegeorprisonandwhethertheyendupemployedoraddicted.ThegoodnewsaccordingtoDamonJonesleadauthorofthestudyisthatintervention干预atayoungagecanhelpimprovesocialandemotionalskills. Thisresearchbyitselfdoesn'tprovethathighersocialcompetencecanleadtobetteroutcomeslateronhesaid.Butwhencombinedwithotherresearchitisclearthathelpingchildrendeveloptheseskillsincreasestheirchancesofsuccessinschoolworkandlife. 1Whathasthe20﹣yearstudyfound? A.Mostkindergartnerscansolveproblemsalone. B.Helpfulchildrenunderstandother'sfeelingbetter. C.Outgoingchildrencooperatewiththeirpeerseasily. D.Socialskillsplayakeyroleinchildren'sdevelopment. 2Paragraph3and4aremainlyabout? A.whentheresearchersbegantheirstudy B.howlongittooktocompletethestudy C.howtheresearchersconductedthestudy D.whatfactorswerestudiedbytheexperts 3WhatshouldparentsdotohelptheirchildrentosucceedaccordingtoKristinSchubert? A.Teachthemhowtocooperatewithothers. B.Teachthemsomebasiclivingskills. C.Tellthemtokeepoffalcohol D.Coachthemintheirlessons. 4Thetextmakesverygoodsenseto. A.teenagers B.educators C.doctors D.generalreaders
随着电脑越来越多地进入我们的生活它给我们带来了方便但不当的使用也影响着我们的身体健康.请根据下面所给要点用英文写一篇短文简要说明电脑对人体健康的不利影响并提出改善建议. 1.长时间用电脑损害眼睛影响视力. 2.对电脑的过多依赖造成记忆力减退. 3.电脑前久坐容易引发腰背不适肥胖等症装. 注意: 1.词数100左右;开头已经为你写好不计入总词数. 2.可根据内容适当增加细节以使行文连贯. Ascomputersarebeingusedmoreandmorewidelyinourlifetheyhavebroughtusalotofconvenience.
MadeinChinaishavingitsmomentnow﹣andit'safashionableone. ThestoryofChinesefashionbeganin2011whenFeiyueandHuilibothChinesesportsshoebrands品牌suddenlygotinternationalattention.Theirproductswereseenallovertheworld.ChinesesportswearbrandLiNingwasattheNewYorkFashionWeekinSeptember2018.Theyshowedtheirnewdesigns﹣sweatersandjacketswithChinesecharacters. ShaunReinmanagingdirectorofChinaMarketResearchGroupsaidthatthelatestChinesebrandsnolongercatchcustomers'eyebylowprice.HetoldCNNTheyaresurethattheycangoheadtoheadwithforeignbrands. MaybeitisbecauseChina'syoungpeoplearenowmoreconfidentabouttheirownculture.Theydon'tshowimmediateinterestinwesterncultureanymore. Today'syoungpeopleinChinaarecrazyaboutChineseculturalelements元素.JinQuthemanagerofaclothingshoppingwebsitesaidataculturalfestivalin2018.TheyliketheseelementsprintedontheirclotheseventhebrandpictureofLaoganmainChinawhichwasonceseenasoutsideoffashion.ButnowyoungpeopleareproudoftheseChinesesymbols. InfactmanystarsintheWestarenowinterestedinChineseculturalelementsinfashion.RihannaaUSsingerforexampleworeaChinesereddresstothe2015MetGalainNewYork.ThedresswasdesignedandmadebyChinesedesignerGuoPei. WehavetomovefrommakingtocreatingChinese﹣AmericandesignerAricChenoncetoldTheNewYorkTimes.Wewanttoreplacethewords‘MadeinChina'with‘DesignedinChina'. 1ThenewdesignsofLiNingCompanyinSeptember2018were. A.coatsandscarvesinChinesered B.sweatersandjacketswithEnglishwords C.coatsandscarveswithAmericansymbols D.sweatersandjacketswithChinesecharacters 2TheunderlinedwordTheyinParagraph5refersto. A.Today'syoungpeopleinChina B.TheworkersinJinQu'sshop C.SomefamousstarsintheWest D.DirectorsofsomeChinesecompanies 3Whatcanbethebesttitleforthepassage? A.ChineseClothesBrands B.SportsinChina C.ChineseCulturalFestival D.DesignedinChina 4Thepassageabovemaybetakenfroman. A.newspaper B.guidebook C.novel D.ad
下列化学符号中数字“2”表示的意义不正确的是
OneSundaymyfamilyhadgatheredatmyparents'housetofeastuponMom'swonderfulcooking.DuringthenormaldinnerchatterInoticedthatmyfatherwasslurring说话含混hiswords.NoonementionedthisduringdinnerbutIfeltcompelledtodiscussitwithmymotherafterward. WedecidedthattherewassomethingseriouslywrongandthatDadneededtoseethedoctor. Momphonedmetwodayslater.Thedoctorfoundabraintumor肿瘤.It'stoolargeatthispointtooperate.Maybetheycandosomethingthenbuttheoddsarelong. Evenwiththetreatmentmyfather'sconditionworsenedandthedoctorfinallyinformedusthatthisconditionwasterminal.DuringoneofhisstaysinthehospitalwebroughtourbabydaughterChelseywithuswhenwevisitedhim.Bythistimehehadgreatdifficultyspeaking.IfinallyfiguredoutthathewantedChelseytositonhisstomachsohecouldmakefacesather. WatchingthetwoofthemtogetherIrealizedIwaslivinganexperiencethatwouldstaywithmeforever.ThoughgratefulforthetimestheycouldshareIcouldn'tshakethefeelingofaclocktickinginthebackground. Onthevisittomyparents'homeduringwhatweallknowwasmyfather'slastdaysmymothertookChelseyfrommyarmsandannouncedYourfatherwouldliketoseeyoualoneforaminute. Ienteredthebedroomwheremyfatherlayonarentedhospitalbed.Heappearedevenweakerthanthedaybefore. HowareyoufeelingDad?Iasked.CanIdoanythingforyou? Hetriedtospeakbuthecouldn'tmakeoutaword. I'msorrybutIcan'tunderstandyouIsaid. WithgreatdifficultyhesaidIloveyou. Wedon'tlearncouragefromheroesontheeveningnews.Welearntruecouragefromwatchingordinarypeopleriseabovehopelesssituations.Inmanywaysmyfatherwasastrictuncommunicativeman.Hefounditdifficulttoshowemotion.ThebravestthingIeversawhimdowasovercomethatbarriertoopenhishearttohissonandfamilyattheendofhislife. 1WhichofthefollowingstatementsisTRUE? A.Thewriteraccompaniedhisfathertoamedicalexamination. B.Thewriter'sfathergotworseaftertheremovalofthebraintumor. C.Thewriter'sfatherhadknownabouthisillnessbeforethewriterdiscoveredit. D.Thewriterwasquicktonoticethestrangeconditionofhisfather. 2Whatdoestheunderlinedsentencetheoddsarelongmean? A.IttakesalongtimeforFathertorecover. B.There'slittlepossibilityforFathertorecover. C.Fatherneedsloveandcarefromhisfamily. D.TheyneedapropertimetooperateonFather. 3ThefatherhadneversaidIloveyoutothewriterbeforebecause. A.hewasnotusedtoopenlyshowinghisemotions B.hewasnotsoattachedtothewriter C.hethoughttherewasnoneedtotellthewriter D.hebelievedinstrictnessandpunishment 4Whatdoesthewriterattempttotellus? A.Lifeisshortsoliveyourlifetothefullest. B.Don'twaittoseeadoctortillitistoolate. C.Bravelyexpressyourloveforyourfamily. D.Wedon'toftenvaluehealthuntilweloseit.
VisitingJoshuaTreeNationalParkCalifornia JoshuaTreeNationalParkisnearly800000acreslargeandsurroundspartsoftheMojaveandColoradoDesertsinSouth﹣centralCalifornia.Althoughbarrenatfirstglancetheparkisfullofwildlifeandprovidesavarietyofentertainmentactivitiesfromhikingtoclimbing.Withinathree﹣hourdriveJoshuaTreeNationalParktakesatleastafulldaytovisit. Thingstodo •Hikingopportunitieswithintheparkincludeseveralchoicesfrom12self﹣guidednatureroutinestoall﹣dayback﹣countryhikes. •JoshuaTreeNPhasninecampinggroundsandback﹣countrycampingisalsoallowed. •Rockclimbingisapopularactivityintheparkwhichhas10mountainsgreaterthan5000feetinheight. Whentovisit JoshuaTreeNPisopen365daysayearalthoughthebesttimetovisitisOctoberthroughAprilwhentemperatureismilder.Thepeakseasoniswhenthewildflowersbloomandthesummermonthsaretheleastcrowded. Whattobring Inadditiontoyourcameraandtelescopebesuretocarrylotsofwater.Parkandguidingmapscanbepickedupatanyofthethreevisitorcenters. Fees •Parkingfees:Youcanbuyaseven﹣dayvehiclepermit周票for﹩15asingleentrypermitfor﹩5orJoshuaTreeNationalParkannualpassfor﹩60. •Campingfees:Theyvarybycampingground 1Theunderlinedwordbarreninthefirstparagraphcanbereplacedby. A.rich B.beautiful C.deserted D.useless 2WhenisthebesttimetovisitJoshuaTreeNP? A.March B.May C.June D.September 3IfonegoestoJoshuaTreeNPbycarandstaystherefor9dayshowmuchatleastoneshouldpayfortheparkingfees? A.﹩60 B.﹩15 C.﹩25 D.﹩30 4Whatcanbeinferredfromthetext? A.Thereareguidesfornaturetrails. B.Touristscaneasilyvisitthewholeparkwithinaday. C.Thecampingfeesattheninecampinggroundsaredifferent. D.Touristsmusttakeparkandtrailmapswiththemwhentheyvisitthepark.
Istheresuchathingasbeingover﹣protective? Icanhonestlysaythatmyanswertothatquestion1changedramatically戏剧性地sinceIbecameaparent. BeforethebirthofmydaughterItaughtat2privateschooloftenviewingmystudentsasover﹣protectedworrying3wouldhappenwhentheywentontomiddleschools. Somedidfineandsomedidnot.Someneededconstantpatsonthebackwordsof4encourageandextrasupportwhichI5happygave.Otherswerecontentontheirownneedinglittleornointeraction互动withtheirteacher.6forthemostpartgraduateswouldgoonforhigherschooling. I'dalwayssupposedtheirparentswereover﹣protectivefortheyweretheonesthatstillwalkedtheir7fivegradersintotheclassroomandmetthemattheschoolgate. AdmittedlyIlaughedatthoseparents8thinktheirchildrenwouldneverlearntobe9independenceiftheydidn'tletgojustalittle.ThenIhadmyowndaughter.ThemomentIlookedatherlittlefaceI10knowI'ddoeveythinginmypowertoprotectherandmakesureshealwaysfeltsafe!
如图所示滴管中有液体甲小试管中盛放着固体乙足量广口瓶中有少量饱和的澄淸石灰水试管底部浸没在澄淸石灰水中．当把甲溶液滴加到乙中后过一会儿可看到石灰水变浑浊了同时U形管中的a液面降低b液面升高了．根据以上现象请你分析下列说法不正确的是
某同学在校运动会上不慎受伤用30%的双氧水给伤口消毒他惊奇的发现涂抹双氧水时有气泡产生于是他和兴趣小组的同学们开展了以下探究活动． 1血液中含有过氧化氢酶请用化学方程式说明甲同学涂抹双氧水时产生气泡的原因如何用实验验证产生的气体． 2查阅资料FeCl3也可加快双氧水分解兴趣小组的同学们对影响双氧水分解快慢的因素进行了以下探究 通过上述操作兴趣小组的同学们想探究的是因素对双氧水分解快慢的影响．为确保实验结果准确上述操作还应控制哪些因素①②．
假定你叫李华你班同学约定本周日上午9点在市中心公园的小树林边聚会想邀请你们的外籍英语教师Sally参加.请根据下图指示给她写一封e﹣mail告诉她如何到中心公园找到你们. 注意: 1.词数:100左右开头和结尾己为你写好不计入总词数; 2.可适当增加细节以使行文连贯. DearSally Thestudentsinourclassaregoingtohaveaget﹣togetherintheCentralParkat9thisSunday. Yours LiHua
IfyouliveinTokyoorTorontoyouneedawarmcoatinthewinter.1Theaimofadvertisingistochangeourideasaboutthingswewantandneed. Someadsfordesignerproductsusepeople'svanity虚荣心toselltheproduct.Theadstrytocreateapersonalityforeachbrand.Forexampleonebrandofwatchesisforpeoplewholikeadventurewithadsfeaturinganautoracerorapilotwearingthem.Anotherbrandofwatchesisforelegantandfashionablepeopleandtheadsshowwealthytravelersonacruiseship.Thewatcheslookalmostthesame﹣onlytheirimagesaredifferent.Whenyoubuythatbrandofwatchyouarebuyingtheimage.2 Manyadsusepeople'semotionstopersuadeusthatweneedtheproduct.ThinkofaTVcommercialthatshowsawomanoutdrivinginacaronarainydaywithhertwosmallchildren.Suddenlyanothercarturnsinfrontofher.Themotherquicklyhitthebrakesandhercarcomestoastop.Thechildrenarestillsmilingandlaughing.Themessageis:Thiscarwillkeepyousafe.3Otherexamplesareslogansthattellyoutotakevitaminstopreventheartdiseaseorbuyinsurance﹣protectyourfamily. Commercialsforsoftdrinksoftenshowpeoplehavingapartyplayingsportsorenjoyingadayatthebeach:Everyoneintheadishavingagoodtime.Themessageis:Ifyoubuythisdrinkyouwillhaveagoodtimetoo.Manyadslikethisarebasedonpeople'sdesireforfunandenjoyment. 4Psychologistshavefoundthatpeoplehavepositivefeelingsaboutthingstheyseemoreoftensothesameadisusedforalongtimebeforeitisreplacedwithanewad.OtherstudiesfoundthatpeoplereactbettertoanadwhenitisfreshintheirmemorysoTVadsarerepeatedveryoften. Knowingaboutpsychologyinadvertisingletsusmakebetterdecisionsaboutthethingswebuy.5 A.Advertisementslikethisoneusefeartosellproducts. B.Butyouwantonethatisshortorblackorhasadesignerbrand. C.YouhavetobecarefulnottobefooledbytheadsontheInternet. D.Butthechildrenmaynotrealizethatwhattheyareviewingisunreal. E.Thisisthereasonthatpeoplespendmuchmoremoneyforaproduct. F.Afteranadispreparedadvertisersusepsychologytomakeitmoreeffective. G.Ithelpsusknowthedifferencebetweenwhatwewantandwhatwereallyneed.
Askilledtravelercantakeataxibuyfoodinamarketandgetdirectionsfromastrangerthroughhandgesturesalone. Thingscangetlostintranslationwhenatypicalgesturefromyourcountrymeanssomethingcompletelydifferentinotherpartsoftheworld. BelowaresomecommonNorthAmericangesturesthatoftencauseproblemsabroad. 1.VinAustraliaandEngland In1992GeorgeBushvisitedAustraliaandfromthewindowofhiscarhelduphisindex食指andmiddlefingersintheVshape.ThisVmeansvictoryinEnglandorpeaceinNorthAmerica.Toobaditmeansupyours.inAustralia. 2.OKinFrance MakingacirclewithyourfingermeansgreatorfineinNorthAmerica.It'salsousedbydiverstocommunicatethattherearenoproblems.InFrancehoweverthisgesturemeanszero.Unlessyou'remotioningtoaFrenchdiveryoumightbecommunicatingthatsomethingorsomeoneisworthless. 3.One﹣handedgivinginJapan IntheWestpeoplearen'tespeciallymindfuloftheirhandswhentheyofferobjectstoothers.InJapanitispoliteandexpectedforpeopletomakeofferingswithbothhands.Ifyougivesomeoneabusinesscardorhandthemyourcameratotakeaphotobesuretopassontheitemwithbothhands.Thisshowsthatyouarefullyattentiveandcarefulintheoffering.Aone﹣handedpresentationmightbetakenasdismissive蔑视的. 4.GotyourNose!inTurkey Amanwiththegesturedoesn'thaveasetNorthAmericanmeaningexceptwhenplayinggotyournosewithachild.ItalsomeanstheletterTinAmericanSignLanguage.InTurkeythisgestureisaggressivelyrude. 1IfyouwanttoexpressyoursatisfactioninNorthAmericayoucanuse. A.Vgesture B.OKgesture C.Thumbs﹣up D.Gotyournose 2Whatcanweinferfromthepassage? A.Thegesturesarethesamearoundtheworld. B.AvgestureinEnglandmeanspeace C.AOKgestureinAmericameansZERO D.YouhadbettergivesomeonesomethingwithbothhandsinJapan. 3Whichpartdoesthepassagebelongtoinnewspaper? A.sports B.education C.food D.tourism 4Whomightbeinterestedinthispassage? A.Americans. B.Japanese. C.Frenchmen. D.Englishmen.
WhenIaskedmymother﹣in﹣lawtoselectwhichmealsshe'dlikemetoorderfromthehome﹣deliverymenusheonlychosetheonesherhusbandwouldlike.Thisgoeswaybeyondpoliteness.Sheisactuallyfeelinguncomfortablevoicingwhatshewants.ShedevelopedthemainsymptomofAsker'sSyndromethatone'sunabletoaskforwhatonewants. It'snotjustolderwomenwhohavethisproblem.Asker'sSyndromecanstriketheyoung.Ihavesinglefriendswhowon'taskamanoutonadatebecausetheyfearbeingconsideredtooforward.Myfive﹣year﹣olddaughterVioletisshowingtheearlystagesofAsker'sSyndrome.She'slearnedthatwomendon'taskbutratherdrophints.She'llsayRememberlastSundayafternoonwewenttothepark?ratherthanCanwegotothepark? Apartfromwomenandgirls'problematicrelationshipwithappetitefoodanddatingit'swidelyreportedthatwomenarelesslikelythanmentoaskforpayrisesandpromotions.Insteadtheywithdrawhopingthatsomebodyelsewilldecidetheyareworthyandmakethempromoted. NodoubtmanywomendevelopAsker'sSyndromeasadefensivemeasurebecausethey'vebeenlabeledaspushyorrudeforsimplyaskingforwhattheywant.Butinthelongtermchoosingnottoexpressourdesiresdoesn'tserveuswell. It'stimetocureourselvesandourgirlsofAsker'sSyndrome.Idon'twanttoraiseafuture‘burntchopmother'whodeniesherwishforfoodpowerandsuccessandanythingelse.Iinsistthatsheaskforwhatshewantsdirectly. Forwomeninourcultureaskingisaskillthatweneedtolearnandpractice.Andifwealldoitthenwomenaskingwillbecomethenormratherthantheexception. 1Theauthor'smother﹣in﹣lawismentionedinParagraph1to. A.introducetheoldlady B.setanexample C.talkaboutherillness D.leadinatopic 2WhichisTRUEaboutAsker'sSyndromeaccordingtothepassage? A.Itoftencausesproblemswithappetiteandfood. B.Olderwomendevelopmoreofitssymptoms. C.Morewomensufferfromitthanmenintheircareer. D.Womendenyaskingforwhattheywantbecausetheyaretoopolite. 3Thepassageiswrittento. A.listsymptomsofAsker'sSyndrome B.encouragewomentoexpresstheirdesires C.explainthecausesofrefusingtoask D.suggestwaystoaskformore
JohnSandwasoneofthemostinfluentialteachersIhaveevermet.Duringhighschoolhetaughtmemorethananyotherteacherhadbeenableto. Hedevelopedunusualmethodsofteaching.Hedidnotgiveushomeworkonthefirstdayandhaveitduethenext;insteadhegaveusahomeworkscheduleforthetermandleftituptoustoremembertodoit.Bydoingsohepreparedusforlifeafterhighschoolwhereitwouldbeuptoustomakeourownworkschedule. Mr.Sandwasafamilyman.Hemadeuseofwhatevertimewehadleftinclasstoshowushislatestvacationvideosorhischildren'ssportsvideos.Itwasnicetoseeamanwhobalancedhisfamilyandhiscareersonicelyinaworldwhereabrokenhomeistheaveragehome. Mr.Sandalwaysencouragedustogetoutofourlittleclose﹣mindedsocietyofWethersfieldandexploretheculturesoftheworld.HewouldtellusstoriesofhistravelsacrossEuropeandhisadventuresaroundtheUS.Manyteachersjustforcedtheideaofcollegeandignoredourneedtoreachoutsideofwhatweknow. ManypeoplemaynoteverhaveateacherlikeMr.Sand.Ifeelsorryforthem.Mr.Sandtaughtmethingsthatwentbeyondthecurriculum课程andletmeknowhowpowerfulateacher'sinfluencecouldbe. 1HowdidMr.Sanddealwithstudents'homework? A.Healwaysavoidedgivingit. B.Hepunishedthosefailingtofinishit. C.Hewantedstudentstoberesponsibleforit. D.Hespentenoughtimeeverydaycheckingit. 2WhatdoweknowaboutMr.HandfromParagraph3? A.Heonlyhadonechild. B.Hedidn'thaveagreatloveforlife. C.Helikeddoingsportsafterwork. D.Hevaluedhisjobaswellashisfamily. 3Mr.HandsharedhistoursaroundEuropewithhisstudentsto. A.leadthemtoknowmore B.encouragethemtobecomebrave C.inspirethemtocareforothers D.showthemhowtospendtheirfreetime 4Whatwouldbethebesttitleforthetext? A.TeachersIlikebest B.Anoutstandingteacher C.Teachingagreatcareer D.Howtobeacaringteacher
Itwas3:45inthemorningwhenthevotewasfinallytaken.Aftersixmonthsofarguingandfinal16hoursofhotparliamentarydebatesAustraliansNorthernTerritorybecamethefirstlegalauthorityintheworldtoallowdoctorstotakethelivesofincurablyillpatientswhowishtodie.Themeasurepassedbytheconvincingvoteof15to10.AlmostimmediatelywordflashedontheInternetandwaspickeduphalfaworldawaybyJohnHofsessexecutivedirectoroftheRighttoDieSocietyofCanada.Hesentitonviathegroup'son﹣lineserviceDeathNET.SaysHofsess:Wepostedbulletinsalldaylongbecauseofcoursethisisn'tjustsomethingthathappenedinAustralia.It'sworldhistory. Thefullimportmaytakeawhiletosinkin.TheNTRightsoftheTerminallyIlllawhasleftphysiciansandcitizensaliketryingtodealwithitsmoralandpracticalimplications.Somehavebreathedsighsofreliefothersincludingchurchesright﹣to﹣lifegroupsandtheAustralianMedicalAssociationbitterlyattackedthebillandthehasteofitspassage.Butthetideisunlikelytoturnback.InAustralia﹣whereanagingpopulationlife﹣extendingtechnologyandchangingcommunityattitudeshaveallplayedtheirpart﹣otherstatesaregoingtoconsidermakingasimilarlawtodealwitheuthanasia.IntheUSandCanadawheretheright﹣to﹣diemovementisgatheringstrengthobserversarewaitingforthedominoestostartfalling. UnderthenewNorthernTerritorylawanadultpatientcanrequestdeath﹣probablybyadeadlyinjectionorpill﹣toputanendtosuffering.Thepatientmustbediagnosedasterminallyillbytwodoctors.Afteracoolingoffperiodofsevendaysthepatientcansignacertificateofrequest.After48hoursthewishfordeathcanbemet.ForLloydNicksona54﹣year﹣oldDarwinresidentsufferingfromlungcancertheNTRightsofTerminallyIlllawmeanshecangetonwithlivingwithoutthehauntingfearofhissuffering:aterrifyingdeathfromhisbreathingcondition.I'mnotafraidofdyingfromaspiritualpointofviewbutwhatIwasafraidofwashowI'dgobecauseI'vewatchedpeopledieinthehospitalfightingforoxygenandclawingattheirmaskshesays. 1Fromthesecondparagraphwelearnthat. A.theobjectiontoeuthanasiaisslowtocomeinothercountries. B.physiciansandcitizenssharethesameviewoneuthanasia. C.changingtechnologyischieflyresponsibleforthehastypassageofthelaw. D.ittakestimetorealizethesignificanceofthelaw'spassage. 2Whentheauthorsaysthatobserversarewaitingforthedominoestostartfallinghemeans. A.observersaretakingawait﹣and﹣seeattitudetowardsthefutureofeuthanasia B.similarbillsarelikelytobepassedintheUSCanadaandothercountries C.observersarewaitingtoseetheresultofthegameofdominoes D.theeffect﹣takingprocessofthepassedbillmayfinallycometoastop 3WhenLloydNicksondieshewill. A.facehisdeathwithcalmcharacteristicofeuthanasia B.experiencethesufferingofalungcancerpatient C.haveanintensefearofterriblesuffering D.undergoacoolingoffperiodofsevendays 4Theauthor'sattitudetowardseuthanasiaseemstobethatof. A.opposition B.suspicion C.approval D.indifference
假设你是LiMing以下是你的南非笔友Seb发给你的一封电子邮件请根据该邮件内容给Seb回一封邮件. 要求:1.考生需按电子邮件格式完成整封邮件; 2.邮件中不能出现真实姓名校名等相关信息; 3.词数:90～100 ﹣﹣﹣﹣ ﹣﹣﹣﹣ ﹣﹣﹣﹣
假如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的以下作文.文中共有10处错误涉及单词的增加删除或修改. 增加:在缺词处加一个漏词符号∧并在此符号下面写出该加的词. 删除: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. Thepersonwhohastaughtmethemostaboutlifeismygrandmother.Shewasmorethanjustagrandmothertome.WhenshediedafewyearsbeforeIfeltIlostareallygoodfriend.Shealwayslookedveryniceonherage.Shedideverythingshecouldmakemefeelathome.Shewasimaginativeandwouldspendhourstellmestoriesshehasmadeup.IamsureitwasbecauseofherwhichIbecameastorywriter.Apartfromkeepingayoungboyentertainingshetaughtmealargenumberofimportantthingsonwhattobehave.IwasratherimpatientwhenIwasachildandshetaughtmethatgoodthingshappenedifIcouldwaitforthem.Shewasapositivepersonbutshealsotaughtmehowtolookforthegoodineverything.
ManypeoplegotoUtahbecausetheylovehikinginBryceCanyonNationalPark.Theyenjoy1岩石climbingcampingandsoon.HoweversomepeoplegotoUtahforavery2不同的experience. TheBoulderOutdoorSurvival生存SchoolBOSSinUtahistheworld'soldestsurvivalschool.Itteachespeoplehowtostayalivewithouttentsorevenbackpacks.InBryceCanyonthedaysarevery3热的andthenightsareverycold.Noteveryonewantstogoandexperiencelifewithoutmodern4发明likesmartphonesande﹣books.StudentsatBOSSquicklylearnthatitisimportanttoworkhardand5尝试newthingsiftheywanttocompletethetraining. InsurvivalcampsatBossstudentsdon'justpractisecampinghikingor6骑horses.Theygointothewildfordaysorweeks.Theylearnhowtofind7新鲜的waterfordrinking.Theyalsolearnhowtomakeafireusea8小刀andfindfoodtoeat.Naturecanoftengivethem9每件事theyneedtosurvive. Afterthesepeoplegobacktotherealworldtheymayneverusetheseskillsagain.Eveniftheydon'tat10至少theywillalwaysknowthattheycanlivewithoutcomputerselectricityandsmartphones﹣evenifitisonlyforafewdays!
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