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如图,等边△ABC的边长为4,点O是△ABC的外心,∠FOG=120°.绕点O旋转∠FOG,分别交线段AB、CD于D、E两点.连接DE,给出下列四个结论:①OD=OE;②S△ODE=S△BDE;③S...
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一个边长为4cm的等边三角形ABC与⊙O等高如图放置⊙O与BC相切于点C⊙O与AC相交于点E则CE的
在△ABC中∠C.=90°AC=3BC=4点O.是△ABC的外心现以O.为圆心分别以22.53为半
.如图在等边△ABC中D.为BC边上一点E.为AC边上一点且∠ADE=60°BD=3CE=2则△AB
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如图已知等边△ABC以边BC为直径的半圆与边ABAC分别交于点DE过点D作DF⊥AC垂足为点F.1判
如图一个边长为4cm的等边三角形ABC的高与⊙O的直径相等⊙O与BC相切于点C与AC相交于点E则CE
图示为4×4的网格图
,
,
,
,O.均在格点上,点O.是( )
第9题图 A.△ACD的外心B.△ABC的外心 C.△ACD的内心D.△ABC的内心
如图△ABC是等边三角形D.为AB的中点DE⊥AC垂足为点E.若AE=1则△ABC的边长为
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如图△ABC是等边三角形AO⊥BC垂足为点O.⊙O.与AC相切于点D.BE⊥AB交AC的延长线于点E
已知等边△ABC边长为2放置在如图的水平桌面上将△ABC水平向右作无滑动翻滚使△ABC首次落回开始的
如图已知等边三角形ABC以边BC为直径的半圆与边ABAC分别交于点D点E过点E作EF⊥AB垂足为点F
如图已知等边三角形ABC以边BC为直径的半圆与边ABAC分别交于点D.点E.过点E.作EF⊥AB垂足
如图已知等边三角形ABC以边BC为直径的半圆与边ABAC分别交于点D.点E.过点E.作EF⊥AB垂足
如图已知等边△ABC的边长为8点P.是△ABC内一点PD∥ACPE∥ABPF∥BC点D.E.F.分别
如图已知△ABC是等边三角形以AB为直径作⊙O.交BC边于点D.交AC边于点F.作DE⊥AC于点E.
如图在等边△ABC中D.为BC边上一点E.为AC边上一点且∠ADE=60°BD=3CE=2则△ABC
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如图等边△ABC的边长为1D.E.分别是ABAC上的点将△ADE沿直线DE折叠点
落在点A.'处,且点A.'在△ABC外部,则阴影部分图形的周长为 ( ) A.2
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如图△ABC是等边三角形AO⊥BC垂足为点O.⊙O.与AC相切于点D.BE⊥AB交AC的延长线于点E
如果定义到三角形的两个顶点距离相等的点叫做此三角形的准外心.例如如图1所示若PC=PB则称点P.为△
如图①在等边△ABC中CD⊥AB垂足为D⊙O的圆心与点D重合⊙O与线段CD交于点E且CE=4cm.
已知如图以等边△ABC的边BC为直径作⊙O.分别交ABAC于点D.E.过点D.作DF⊥AC交AC于点
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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
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+.
根据下列实验装置图回答问题 1写出图中标号的仪器名称a. 2制取气体时按要求组装好仪器后应先再添加药品给A装置试管里的固体物质加热时应先然后集中加热盛有药品的部位. 3实验室中用过氧化氢溶液与二氧化锰混合制取氧气发生反应的化学方程式为应选用的发生装置是填装置序号. 4图E所示是细铁丝在氧气中燃烧的实验实验装置中瓶底预先装少量水的原因是. 5用图F所示方法把二氧化碳气体慢慢倒入放有燃着的蜡烛的烧杯中下层蜡烛的火焰先熄灭二氧化碳这种性质在实际生活中的应用是.
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
某同学发现上个月做实验用的氢氧化钠溶液忘记了盖上瓶盖.对于溶液是否变质同学们提出了如下假设 【猜想】猜想一没有变质猜想二部分变质猜想三. 【査阅资料】Na2CO3溶液呈碱性. 【进行实验】 【反思】氢氧化钠溶液必须密封保存.氧氧化钠溶液变质的原因用化学方程表示.
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!
化学就在我们身边下列化学知识的整理有错误的是
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
对于下列几种化学符号有关说法正确的是 ①H②Fe2+③Cu④P2O5⑤Fe3+
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.
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
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.
甲乙两种固体物质的溶解度曲线如图所示请回答 1℃时甲和乙两种物质的溶解度相等. 2欲将一定温度下乙物质的饱和溶液变为不饱和溶液可采用的方法是. 3将等质量甲乙两种物质分别配成t2℃时的饱和溶液需要水的质量大小关系是甲乙填“>”“=”或“<”.
2018年3月22日是第26届“世界水日”我国的宣传主题是“实施国家节水行动建设节水型社会”.再生水的循环使用是城市节水的主要措施之一.“再生水”是城市污水经处理后达到国家水质标准的中水中水是指介于自来水和污水之间的水.下列有关水的说法中错误的是
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