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针剂药品封装前常用空气中含量最多的气体进行处理，以防变质．该气体是（ ）
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医疗上常用空气中含量最多的气体制成冷冻麻醉剂该气体是
O
2
N
2
CO
2
稀有气体
某化工装置内需要进行动火作业作业前对作业点周边进行气体检测测爆仪测得的数据为20％LEL下列关于该测
空气中可燃气体含量为20％(V)
空气中可燃气体含量为20(m)
空气中可燃气体含量为该气体爆炸上限的20％
空气中可燃气体含量为该气体爆炸下限的20％
.空气中含量最多的气体是________.
针剂药品封装前常用空气中含量最多的气体进行处理以防变质．该气体是
氮气
氧气
稀有气体
二氧化碳
化学物质与人类生产生活密切相关请用化学式填空①空气中含量最多的气体是_________②最常用的溶剂
用化学式填空⑴空气中含量最多的气体是⑵食物放置一段时间易变质是因为空气中含有
空气中含量最多的两种气体是______和______其中______约占空气总体积的21％空气中各成
空气中含量最多的气体是能使带火星木条复燃的气体是能使澄清石灰水变浑浊的气体是包装食品时充入的防腐气体
地壳中含量最多的元素是它形成单质的化学式是空气中含量最多的气体是
下列有关化学之最的叙述正确的是
空气中含量最多的气体是氧气
最常用的溶剂是水
海水中溶有最多的盐是溴化钠
地壳中含量最多的元素是铝
下列有关空气及其成分的说法错误的是
空气中含量最多的气体是氧气
氮气化学性质不活泼，可作食品防腐的保护气
被污染的空气会直接危害人体健康
稀有气体常用来做光源
空气中含量最多的气体是能使带火星木条复燃的气体是能使澄清石灰水变浑浊的气体是包装食品时充入的防腐气体
地壳中含量最多的元素是它形成单质的化学式是空气中含量最多的气体是.
空气中含量最多的气体为_______氧气占空气体积分数的__________氧气化学性质比较____
空气中含量最多的气体是地壳中含量最多的元素是能支持燃烧的气体是它约占空气体积的%.
空气的成分中含量最多且常用作保护气的是
氮气
氧气
稀有气体
二氧化碳
农业上常用于促进植物茎叶生长的复合肥料是填化学用语下同空气中含量最多的气体是
某化工装置内需进行动火作业作业前对作业点周边进行气体检测测爆仪测得的数据为20%LEL下列关于该测爆
空气中可燃气体含量为20%(m)
空气中可燃气体含量为该气体爆炸上限的20%
空气中可燃气体含量为20%(V)
空气中可燃气体含量为该气体爆炸下限的20%
某化工装置内需进行动火作业作业前对作业点周边进行气体检测．测爆仪测得的数据为20％LEL下列关于该测
空气中可燃气体含量为20 % ( V )
空气中可燃气体含量为20 % ( m )
空气中可燃气体含量为该气体爆炸上限的20%
空气中可燃气体含量为该气体爆炸下限的20%
空气中含量最多的气体是能使带火星的木条复燃的气体是能使澄清石灰水变浑浊的气体是包装食品时充入的防腐气
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Researcherscontinuetoshowthepowerbehindoursenseofsmell.Recentstudieshavefoundamongotherthingsthatthesmelloffoodslikepizzacancauseuncontrollableangerindriversonroads. Thereviewexplainsthatsmellisuniqueinitseffectsonthebrain.AccordingtoConradKingtheresearcherwhocarriedoutthereviewmorethananyothersensesthesenseofsmellgoesthroughthelogicalpartofthebrainandactsonthesystemsconcernedwithfeelings.Thisiswhythesmellofbakingbreadcandestroythebestintentionsofadieter. Smellwhichdictates决定theunbelievablecomplexityoffoodtasteshasalwaysbeentheleastunderstoodofoursenses.Ournosesareabletodetectupto10000distinctsmells.Ourabilitytosmellandtastethisextremelylargerangeofsmellsiscontrolledbysomethinglike1000genes基因whichmakeupanamazing3%ofthehumangenome.ResearchersRichardAxelandLindaBuckweretogetherawardedaNobelPrizein2004fortheirground﹣breakingresearchonthenatureofthisextraordinarysense.Thesetwoscientistswerethefirsttodescribethefamilyof1000olfactory嗅觉genesandtoexplainhowourolfactorysystemworks. Accordingtoonestudyintheresearchreviewsmellingfreshpizzaoreventhepackagingoffastfoodscanbeenoughtomakedriversfeelimpatientwithotherroadusers.Theyarethenmorelikelytospeedandexperienceuncontrollableangeronroads.Themostreasonableexplanationisthatthesecanallmakedriversfeelhungryandthereforedesperatetosatisfytheirappetites. Incontrastthesmellsofpeppermintandcinnamonwereshowntoimproveconcentrationlevelsaswellasreducedrivers'impatience.Similarlythesmellsoflemonandcoffeeappearedtopromoteclearthinkingandmentalfocus. Howeverthewaygenesregulatesmelldiffersfrompersontoperson.AstudybyresearchersinIsraelhasidentifiedatleast50olfactorygeneswhichareswitchedoninsomepeopleandnotinothers.Theybelievethismayexplainwhysomeofuslovesomesmellsandtasteswhileothershatethem.TheIsraelresearcherssaytheirstudyshowsthatnearlyeveryhumanbeingshowsadifferentpatternofactiveandinactivesmell﹣detectingreceptors. 1WhatdidRichardAxelandLindaBuckfindout? A.Thetypeoffoodsmells. B.Thenatureofhumanolfactorysystem. C.Thelogicalpartofhumanbrain. D.Therelationshipbetweenfoodandfeelings. 2Whichofthefollowingcanhelppeopleconcentrate? A.Bread. B.Fastfood. C.Pizza. D.Coffee. 3Whatdoweknowfromthelastparagraph? A.Differentpeoplearesensitivetodifferentsmells. B.Everypersonhasadifferentpatternofgenes. C.Somepeoplecanrecognizeupto50smells. D.Therearestillsomeolfactorygenestobefoundout. 4Whatisthepassagemainlyabout? A.Logicandbehavior. B.Senseabilityandfoodtastes. C.Smellanditsinfluence. D.Olfactorygenesanditssystem.
Ifyoudesiretomeetnewfriendshavefunandgetintoshapebasketballisthebestsportforyouregardlessofwhetheryouareaprofessionaloranamateur.1. Herearesomeofthebenefitsyoucanacquirefromplayingbasketball. •Improveyourfitnesslevels. Playingbasketballwilldefinitelyimproveyourfitnesslevels.Basketballisanamazingcardiovascular心血管的exercisewhichisbeneficialtopeoplewithheartproblems.2 •Encourageteamwork. Basketballrequiresteamworktoachieveacommonobjective.3thissportisgreatforkidsasitshowsthemhowtoworktogetherinharmonytoreachthegoal.Learninghowtorelatewithotherswillimproveyourchild'sconfidenceaswellasself﹣esteem.自尊 •4 Makingashotorwinningcanreallyimproveyourchild'sself﹣esteemwhichisavitalaspectduringchildhood.Childrenwithconfidenceareabletoovercomechallengesbetteraccordingtorecentstudies. •Developsocialskills. Itbringsindividualstogetherandhelpscreatefriendshipandbonds.Thisprovidesagreatopportunityforchildrenwhoareshyasithelpstheminteractwithnewfriends.5 Althoughtherearenodrawbacksassociatedtoplayingbasketballitisnecessarythatyouperformotherexercisestoimproveyourspeedandpower. A.Buildupyourmuscles. B.Improveconfidenceandself﹣esteem. C.Theplayershavetoworkasateamtoguaranteeawin. D.Socialskillswillhelpyourchildfunctionbetterinlife. E.Basketballispopularworldwideduetoavarietyofreasons. F.Generallyspeakingbasketballisoneofthesafestsportsintheworld. G.Moreoveritaidsinoxygencirculationandblooddistributionthroughoutthebody.
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TheDunning﹣Krugereffectisatypeofcognitivebias偏见inwhichpeoplebelievethattheyaresmarterandmorecapablethantheyreallyare.Essentiallylowabilitypeopledonotpossesstheskillsneededtorecognizetheirownincompetence.Thecombinationofpoorself﹣awarenessandlowcognitiveabilityleadsthemtooverestimatetheirowncapabilities.Thisphenomenonissomethingyouhavelikelyexperiencedinreallifeperhapsataholidayfamilygathering.Throughoutthecourseofthemealamemberofyourextendedfamilybeginsspoutingoffonatopicboldlyannouncingthatheiscorrectandthateveryoneelse'sopinionisstupiduninformedandjustplainwrong.Itmaybeplainlyevidenttoeveryonethatthispersonhasnoideawhatheistalkingaboutbuthetalkscontinuouslyblithelyoblivious忘乎所以tohisownignorance. TheeffectisnamedafterresearchersDavidDunningandJustinKrugertwosocialpsychologists.Theyfoundincompetentpeoplearenotonlypoorperformerstheyarealsounabletoaccuratelyassessandrecognizethequalityoftheirownwork.Theselowperformerswerealsounabletorecognizetheskillandcompetencelevelsofotherpeoplewhichispartofthereasonwhytheyconsistentlyviewthemselvesasbettermorecapableandmoreknowledgeablethanothers. Thisisthereasonwhystudentswhoearnfailingscoresonexamssometimesfeelthattheydeservedamuchhigherscore.Theyoverestimatetheirownknowledgeandabilityandareincapableofseeingthepoornessoftheirperformance. Inmanycasestheincompetentareoftenblessedwithaninappropriateconfidenceencouragedbysomethingthatfeelstothemlikeknowledge.Dunningandhiscolleagueshavealsoperformedexperimentswheretheyaskrespondentsiftheyarefamiliarwithtermsrelatedtosubjectsincludingpoliticsbiologyphysicsandgeography.Alongwithgenuineconceptstheyaddedcompletelymade﹣upterms.Inonesuchstudyapproximately90percentofrespondentsclaimedthattheyhadatleastsomeknowledgeofthemade﹣upterms. Sowhatcanyoudotogainamorerealisticassessmentofyourownabilities?Insteadofassumingyouknowallthereistoknowaboutasubjectkeepdiggingdeeper.Onceyougaingreaterknowledgeofatopicthemorelikelyyouaretorecognizehowmuchthereisstilltolearn.Anothereffectivestrategyinvolvesaskingothersforconstructivecriticism.Whileitcansometimesbedifficulttohearsuchfeedbackcanprovidevaluableinsightsintohowothersperceiveyourabilities.Evenasyoulearnmoreandgetfeedbackitcanbeeasytoonlypayattentiontothingsthatconfirmwhatyouthinkyoualreadyknow.Inordertominimizethisconfirmationbiaskeepchallengingyourbeliefsandexpectationsandseekoutinformationthatchallengesyourideas. 1WhatcanwelearnabouttheDunning﹣Krugereffectfromthefirstparagraph? A.TheDunning﹣Krugereffectisrareforustoconfirm. B.Poorself﹣awarenessandlowcognitiveabilityhaveacloseconnection. C.Ignoranceleadspeopletounderestimatetheirownabilities. D.Incompetentpeoplecanbeblindtotheirownignorance. 2AccordingtotheDunning﹣Krugereffectwhatdoincompetentpeopletendtodo? A.Underestimatetheirownskilllevels. B.Feelmorerealisticabouttheircompetence. C.Failtorecognizethegenuineskillofotherpeople. D.Recognizetheirownmistakesandlackofskills. 3WhatcanbeinferredfromParagraph4? A.Theparticipantspretendedtoknowwhattheyactuallydidn'tknow. B.Themeaninglesstermsmaycauserespondentstofeelashamed. C.Theaimoftheexperimentswastoassesshowsmarttheparticipantswere. D.Mostoftherespondentsclaimedtheywereunfamiliarwiththemake﹣upterms. 4WhichisthewaytoovercometheDunning﹣KrugerEffect? A.Gainconfidenceandtrustyourself. B.Minimizethebiasandchallenges. C.Assumethatyouknoweverything. D.Askpeopleforhelpfulfeedbacks.
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ThecountryisIndia.Alargedinnerpartyisbeinggiveninanup﹣countrystationbyacolonialofficialandhiswife.TheguestsarearmyandgovernmentofficersandtheirwivesandanAmericannaturalist. Atonesideofthelongtableaspiriteddiscussionspringsupbetweenayounggirlandanarmyofficer.Thegirlinsistswomenhavelongoutgrownthejumping﹣on﹣a﹣chair﹣at﹣the﹣sight﹣of﹣a﹣mouseeraandthattheyarenotasanxiousastheirgrandmotherswere.Theofficersaystheyarearguingwomenhaven'ttheactualnervecontrolofmen. Awoman'sreactioninanycrisistheofficersaysistoscream.Andwhileamanmayfeellikeithehasthatouncemoreofcontrolthanawomanhas. TheAmericanscientistdoesnotjoinintheargumentbutsitsandwatchesthefacesoftheotherguests.Ashestaresheseesaslightthoughstrangelookofanxietycomeoverthefaceofthehostess.Withasmallgestureshesummonstheservantstandingbehindherchair.Shewhisperstohim.Theservant'seyeswiden.Heturnsquicklyandleavestheroom.Nooneelseseesthisnortheservantwhenheputsabowlofmilkonthebalconyoutsidetheglassdoors. TheAmericanunderstands.InIndiamilkinabowlmeansonlyonething.Itisbaitforasnake.Herealizesthereisacobraintheroom.TheAmerican'seyesmoveacrosstheroombutheseesnothing.Herealizesthesnakecanonlybeinoneplace﹣underthetable. Hisfirstreactionistojumpbackandwarntheothers.Butheknowsanysuddenmovementwillfrightenthecobraanditwillstrike.Hespeaksquicklythequalityofhisvoicesoarrestingthatitquietenseveryone.Iwanttoknowjustwhatcontroleveryoneatthistablehas.Iwillcountthreehundred﹣that'sfiveminutes﹣andnotoneofyouistomoveasinglemuscle.Now!Ready! The20peoplesitlikestoneimageswhilehecounts.Heissaying..o..hundredandeighty..whenoutofthecornerofhiseyeheseesthesnakeemergeandmakeforthebowlofmilk.Fourorfivescreamsringoutashejumpstoslamshutthebalconydoors. Thereisyourproof!thehostsays.Amanhasjustshownusrealcontrol. JustaminutetheAmericansaysturningtohishostessHowdidyouknowthatcobrawasintheroom? Afaintsmilecomesacrossthewoman'sfaceasshereplies.Becauseitwaslyingacrossmyfoot. 1Whatistheargumentbetweenthearmyofficerandtheyounggirlabout? A.Whetherwomenareafraidofmice. B.Whethermenarecalmerthanwomen. C.Whethermenareclevererthanwomen. D.Whetherwomenwouldmakesuitablesoldiers. 2Whyistheservantaskedtoputoutsomemilk? A.Toplayatrick. B.Toservetheguests. C.Toattractthesnake. D.Tofeedthehostess'spet. 3Whydoesthescientistsuggesttheguestsplayagame? A.Hedoesn'twantanyonetopanic. B.Heintendstotesttheofficer'stheory. C.Heseestherewasasnakeintheroom. D.Hewantstoentertaintheotherguests. 4Whatdoestheauthorimplythroughthehostess'sfinalstatement? A.Thearmyofficer'sopinioniswrong. B.ThehostessunderstoodtheAmerican'sintention. C.TheAmericanwassurprisedbythesnake'spresence. D.Thehostesshashadpreviousexperiencedealingwithsnakes.
In1874FrancisGaltonaBritishprofessoranalysedasampleofEnglishscientistsandfoundthevastmajoritytobefirst﹣bornsons.Thisledhimtotheorisethatfirst﹣bornchildrenenjoyedaspeciallevelofattentionfromtheirparentsthatallowedthemtoadvanceintellctually.HalfacenturylaterAlfredAdleranAustrianpsychologistmadeasimilarargumentrelatingtopersonality.First﹣bornchildrenhesuggestedweremorediligentwhilethelater﹣bornweremoreoutgoingandemotionallystable.Manysubsequentstudieshaveexploredtheseideasbuttheirfindingshavebeenvaried﹣somesupportingandsomerejectingtheoriginalconclusions. Themainproblemwiththepreviousstudiesisthattheyweretoosmall﹣oftenlimitedtoafewdozenindividuals.Thiswouldbetrueevenifthestatisticalmethodsneededtoanalysethedataweresimplebuttheyarenot.Distinguishingbirth﹣ordereffectsfromthosecausedbyfamilysizecomplicatesmattersmeaningstillbiggersamplesmustbeanalysedtoobtainmeaningfulresults. ToovercomethelimitationoftheseearlierstudiesGermansocialscientistDr.HelmetSchmukleandhiscolleaguesanalysedthreehugesetsofdatafromAmericaBritainandGermany.Thesedatasetsthoughcollectedforotherpurposesincludedpersonalityandintelligencetestson20186peopleatdifferentstagesoftheirlives.TheAmericantestswereonindividualsagedbetween29and35.TheBritishtestswereconductedon50﹣year﹣olds.TheGermantestsranthewholespanofadultlifefrom18to98. Birthordertheyfoundhadnoeffectonpersonality:first﹣bornswerenomorenorlesslikelythantheiryoungersiblingstobehardworkingoutgoingoranxious.Butitdidaffectintelligence.Inafamilywithtwochildrenthefirstchildwasmoreintelligentthanthesecond60%ofthetimeratherthanthe50%thatwouldbeexpectedbychance.Onaveragethistranslatedtoadifferenceof1.5IQpointsbetweenfirstandsecondsiblings.Thatfigureagreeswithpreviousstudiesandthuslooksconfirmed. Itisneverthelessquiteasmalldifference﹣andwhetheritisenoughtoaccountforGalton'soriginalobservationisunclear.Inanyeventitiscertainlynotdeterministic.Galtonwastheyoungestofnine. 1AlfredAdlerconcludedthatfirst﹣bornchildrenwere. A.morestable B.moresociable C.moreintelligent D.morehardworking 2Whatdoestheunderlinedtheyinparagraph2referto? A.Thedata. B.Theanalyses. C.Thepreviousstudies. D.Thestatisticalmethods. 3WhywasSchmukle'sstudyconsideredsuperiortopreviousresearch? A.Itinvolvedawideragerange. B.Ithadamuchlargersamplesize. C.Itincludedalargernumberofcountries. D.Itwasconductedoveralongerperiodoftime. 4WhydoestheauthormentionGalton'sfamilybackgroundinthelastparagraph? A.ToconfirmGalton'sdifficultupbringing. B.TosuggestGalton'stheorymaynotbecorrect. C.TocomparehisexperiencewithGalton'sparents. D.ToexplainwhyGaltonwasinterestedinbirthorder.
Iftherewasasubjectatschoolthatmademeanxiousitwasscience. Maybethat'sbecauseintenthgradeIcouldn'tunderstandmyphysicsteacher's1causingmetoaccidentallysetfiretothe2SowhenitcametohomeschoolingourdaughtersmyhusbandandImadea3:hewouldteachsciencewhileIwould4everythingelse. RecentlyonasunnydayI5thattheday'slessonswouldbetaughtoutside.Weheadedupintotheforest6ourselvesbyapondthatrarelyhasany7MyelderdaughterUlalookedatme8tobeinstructed.Ihandedheradrawingboardandthe9pencils.WewaitItoldherandseeifsomethingcomesalong.10justdrawwhat'saroundyou. Abirdflewacrossthewaterandthensettledinfrontofaan11log.IquicklytoldUlaworriedthatshe'dnotseenthe12.Butshehadandshebegandrawingit.Shedrewthebirdonherpaperwith13accuracy.Buttherewasoneother14factaboutthisdrawing:shealsodrewmesittingbesideher. I15asIgazedatthischild'sdrawingofuswatchingabirdhowIhadlivedfor40yearsgathered10yearsofhigher16andneverunderstoodthefoundationofsciencebeforethis17.Thefoundationofscienceisasenseof18;itisn'taboutaccuratelyrecitingwordsfromatextbook.Itisfirstandforemostabout19outsideourbusylivesandmarvelingat惊叹theworldaroundus. AndfromthatdayI20takingoverfrommyhusbandasthescienceteacher. 1A.instructions B.comments C.assessments D.praise 2A.building B.classroom C.clinic D.library 3A.wish B.promise C.schedule D.deal 4A.learn B.report C.handle D.discuss 5A.decided B.proved C.admitted D.heard 6A.pushing B.checking C.dragging D.settling 7A.friends B.visitors C.neighbors D.relatives 8A.wondering B.arguing C.waiting D.struggling 9A.colored B.expensive C.precious D.perfect 10A.Therefore B.However C.Thus D.Meanwhile 11A.common B.fallen C.strange D.abandoned 12A.threat B.accident C.creature D.event 13A.possible B.amazing C.necessary D.amusing 14A.interesting B.shocking C.annoying D.terrifying 15A.remembered B.defined C.realized D.declared 16A.education B.reputation C.scores D.rank 17A.girl B.bird C.affair D.moment 18A.achievement B.wonder C.balance D.honor 19A.dreaming B.asking C.working D.stepping 20A.gaveup B.missed C.insistedon D.avoided
如图所示平底茶壶的质量是400g底面积是40cm2内盛0.6kg的开水放置在面积为1m2的水平桌面中央装水深度为12cm．茶壶的壶身与壶嘴一样高且其中的液面总是相平它是根据原理做成的茶壶底部受到水的压强为Pa．
假设你是红星中学高三学生李华.你的英国朋友Jim来信说他在英国学校参加了中国书法俱乐部.擅长书法的你决定写一幅书法作品寄给他并附上一封信.信的内容包括: 1.该作品的内容; 2.送该作品的原因; 3.表示愿意提供帮助. 注意:1.词数不少于50; 2.开头和结尾已给出不计入总词数. 提示词:书法calligraphy DearJim Yours LiHua
假定你是李华你的英国朋友Alethea将到中国学习汉语她来信请你帮忙给她起﹣一个合适的中文名字.请你给她写﹣封回信提出建议并说明理由. Alethea[sli:0ia]的含义是:真实;诚实. 1.词数100左右. 2.可适当增加细节使行文连贯.
Onehabitofthosepeoplewhoaresmarterthaneveryoneelseistostayuplate.Inmoviesthecreativegeniusalwaysworkslateintothemidnighthoursbycandlelight﹣andperhapsthisstyle1rootinfact. Astudy2expertsfromtheLondonSchoolofEconomicsandSciencefoundthatpeoplewhotendtogotobedlaterhave3highIQs.4studyauthorsbelievetherootofwhythisisliesinourevolution﹣becausenighttimewasamoredangerousplaceandourancestorswhoweretostayupinsteadofgoingtosleep5needtobemoreintelligent.Also6stayawakeintothenightwasanewidea7wasattractivetocuriousminds. Todayourvaryinglivingrhythmsmaystillreflectthis.Perhapssomesmartpeoplestayuplaterbecausetheirinternalclocksare8simpledifferentDr.Waisays.Orperhapstheystayuplaterbecausetheytendtobealoneandlikebeinguplateatnightwithoutdistractionstothinkandsolvetheir9problem.Butifyouareanightowlstillremember10getyourseventoninehoursofsleep.
关于温度热量内能以下说法正确的是
Areyouinterestedintravelling?HerearefamousnationalparkswheretravellersmostlyliketogoinAmerica. GreatSmokyMountainsNationalPark Visitors:11388893 ThenameGreatSmokyMountainscomesfromthefogoverthismountainrangesituatedalongtheNorthCarolina﹣Tennesseeborder.Establishedin1934itisnotjusthometoadiverseecosystemofplantsandanimalsbutalsohometorichAppalachiancultures.Visitorstherecanseeover100waterfallsgoboatingonFontanaLakeandhiketheAppalachianTrail.It'salsoanexcellentvantagepointtoseetheleaveschangeinthefall. GrandCanyonNationalPark Visitors:6254238 TheGrandCanyonistheresultofover70millionyearsofgeologicaleventscreatingtheColoradoPlateauglaciersandvalleyswhiletheColoradoRivercarveditswaythroughthevalleys.Itistrulyanaturalsplendor! WhenPresidentRooseveltfirstvisiteditin1903hesaidTheGrandCanyonfillsmewithawe.Itisbeyondcomparison﹣beyonddescription?16yearslateritwassignedbyPresidentWoodrowWilsonofficiallyviewingtheGrandCanyonanationalpark. YosemiteNationalPark Visitors:4336890 InadditiontobeinganationalparkYosemiteisdesignatedasaWorldHeritageSite.YosemiteNationalParkisinCentralCaliforniainthewesternSierraNevada.Thoughitcoversaround1168squaremilesofareavisitorsspendmostoftheirtimeinthe5.9square﹣mileareaoftheYosemiteValleywheretherearesomemostfamoussiteslikeYosemiteFallsandCook'sMeadowLoop. ZionNationalPark Visitors;4504812 SettledinSouthwesternUtahisZionNationalPark.Ithassomeofthemostuniquelandscapespackedwithmountainsvalleysriversdesertandforests. ZionNationalParkisalsoanimportantplacetostudyancienthumanswhomadetheareatheirhomeabout8000yearsago.Someofthepark'smostnotableattractionsincludeAngel'sLandingKolobArchtheNarrowsetc. 1HowdoesGreatSmokyMountainsNationalParkgetitsname? A.Withsmokerisingfromthevolcanointhelake. B.Withbigforestfirebreakingoutinthemountain. C.SignedbyPresidentWoodrowWilson. D.Withwatervaporseenoverthemountainrange. 2WhendidGrandCanyonNationalParkbecomeanationalPark? A.Inl887 B.In1903 C.In1919 D.In1934 3WhatdoesYosemiteNationalParkshareincommonwithZionNationalPark? A.Theyarelocatedinthesamestate. B.Peoplecanlearnaboutancienttimesthere. C.Theybothhavethemostcharminglandscenery. D.Theywerebothformedastheresultofyearsofgeologicalevents.
Whatisculture? Cultureistoocomplextodefineinsimpleterms.1Oneisthatcultureisatotalpatternofbehaviourthatisconsistentinitscomponents.Anotherfundamentalisthatcultureislearnedbehaviour.Thethirdisthatcultureisbehaviourthatissharedbyagroupofpeople. Tounderstandthecultureofaparticularcountryorregiononecouldexamineitscomponentsamongwhicharematerialculturelanguageandsocialorganisation.Materialcultureincludesthetoolsandsymbolsinasocietynotincludingthosephysicalthingsfoundinnatureunlesstheyhaveundergonesomechangeorhavebeengivenmeaningbypeople.2Thewayweconsumeandwhatweconsumeareheavilyinfluencedbymaterialculture. 3Linkedwithallotheraspectsofcultureitreflectsthenatureandvaluesofthatculture.Industrialisedsocietieshavearichvocabularyforcommercialandindustrialactivitieswhilelessindustrialisedsocietiesmayhaverichervocabulariesformattersimportanttotheirsocieties.TheEskimosinAlaskahavemanywordstodescribesnowwhereasEnglishhasonlyonegeneralterm. Socialorganisationdifferssomewhatfromsocietytosociety.Theprimarykindofcommunityassociationisbasedonbloodties.4.Itprovidesmutualprotectionpsychologicalsupportandakindofeconomicinsuranceorsocialsecurityforitsmembers.ThetermbrothersinZaireincludesthosewhomwecallcousinsanduncles. Culturalanalysisservesavarietyofpurposes.Understandingthevariousdimensionsandtheirinter﹣relatednesshelpspromotecross﹣culturalawareness.5 A.Somescholarsevensuggestthatitisuselesstotry. B.Languageisthemostobviousdifferencebetweencultures. C.Howevertherearecertainagreed﹣onfundamentalsthatcanbeeasilyidentified. D.Thevaluesrepresentedwithinaculturecanalsochangewiththepassingoftime. E.ForexampleamouserunningonastreetisnotpartofaculturebuttheMickeyMouseis. F.Inmanydevelopingcountriestheextendedfamilyfulfillsseveralsocialandeconomicroles. G.Itleadsontothepromotionofgoodwillsocialandeconomicplanningandharmonybetweensocialgroupingsorsocieties.
RecentlywheneverIturnedonmycomputerormymobilephonenewsaboutthegreateffectofHurricaneHarveyonthousandsofpeoplecaughtmyeyes.Wesawmanyunfortunateevents.Howevertherewerealsothebrightnewsthatconfirmedthegoodnessofmankind.AsajournalistIwrotemanyhumaninterestingstoriesduringmycareer.That'swhythestoryabouttheguysinthebakerycaughtmyeyes. WhenthestaffataMexicanbakerychaininHoustonweretrappedinsidethebuildingfortwodaystheydidn'tsittherefeelingsorryforthemselves.TheyusedtheirtimewiselyafterfloodingcausedbyHurricaneHarvey.WhiletheywerewaitingfortheeventualrescuethatcameonMondaymorningfourdecidedtomakeasmanyloavesofbreadaspossiblefortheircommunity. Thefloodwaterroseinthestreetoutside.Theytookadvantageoftheiremergencypowersupplytobakebread.Theyusedmorethan4200poundsofflourtocreatehundredsofloavesandsheetsofsweetbread.Althoughthewaterkeptrisingtheycontinuedbakingtohelpmorepeople.Bythetimetheownermanagedtogettothemtheyhadmadesomuchbreadthatwetooktheloavestoloadsofemergencycentersacrossthecityforpeopleaffectedbythefloods. ThestoremanagerBrianAlvaradotoldTheIndependentWheneveradisasteroccursnobodyshouldjustfeelforlorn.Insteadweshouldtakepositiveactiontosaveourselvesandhelpothers.Ouractsofkindnesswillmakeabigdifference. 1WhatdidthebakerystoreworkersdoafterfloodingcausedbyHurricaneHarvey? A.Theymanagedtolivebysellingmorebreadinthestore. B.Theyvolunteeredtomakebreadfortheircommunity. C.Theyfeltsorrythattheycouldn'tescapefromthestore. D.Theyatenothingbuttowaitfortheircommunitytorescuethem. 2Whichofthefollowingbestexplainsforlornunderlinedinthelastparagraph? A.Fortunate. B.Hopeful. C.Shallow. D.Desperate. 3Whatcanweinferfromthetext? A.HurricaneHarveycausedapowerfailureinHouston. B.Thestaffinthebakerysentenoughflourtoemergencycenters. C.Alvaradoorganizedhisworkerstobakemuchbread. D.Theauthorpreferredtowritestoriesaboutpeoplefacingdisasters. 4Whatcanbethebesttitleforthetext? A.APopularMexicanBakeryChaininHouston B.WaitfortheEventualRescueinaBigDisaster C.AllKindsofDisastersCausedbyHurricaneHarveyinHouston D.BakeBreadtoMakeaDifferenceinFaceofHurricaneHarvey
2017年1月12日凌晨赴南海执行跨海区训练和实验的辽宁舰编队通过台湾海峡如图所示为歼﹣15航母舰载机从航母上起飞的情景飞机起飞升空时机翼上方空气的流速比机翼下方的大则机翼上方的空气对机翼的压强机翼下方的空气对机翼的压强选填“大于”“小于”或“等于”此舰载机起飞后辽宁舰受到的浮力将会填“变大”“变小”或“不变”．
下列几组数据中最符合实际的是
ThenewsocialrobotsincludingJiboCozmoKuriandMeccanoM.A.X.bearsomeresemblancetoassistantslikeApple'sSiributtheserobotscomewithsomethingmore.Theyaredesignedtowinusovernotwiththeirsmartsbutwiththeirpersonality.Theyaresoldascompanionsthatdomorethantalktous.Timemagazinehailed称赞therobotsthatcouldfundamentallyreshapehowweinteractwithmachines.Butisreshapinghowweinteractwithmachinesagoodthingespeciallyforchildren? Someresearchersinfavoroftherobotsdon'tseeaproblemwiththis.Peoplehaverelationshipswithmanykindsofthings.Somesayrobotsarejustanotherthingwithwhichwecanhaverelationships.Tosupporttheirargumentroboticistssometimespointtohowchildrendealwithtoydolls.Childrenanimate赋予…生命dollsandturnthemintoimaginaryfriends.Jiboinasensewillbeonemoreimaginaryfriendandarguablyamoreintelligentandfunone. Gettingattachedtodollsandsociablemachinesisdifferentthough.Today'srobotstellchildrenthattheyhaveemotionsfriendshipsevendreamstoshare.Inrealitythewholegoaloftherobotsisemotionaltrickery.ForinstanceCozmotherobotneedstobefedrepairedandplayedwith.BorisSofmanthechiefexecutiveofAnkithecompanybehindCozmosaysthattheideaistocreateadeeperanddeeperemotionalconnection…Andifyouneglecthimyoufeelthepainofthat.Whatisthepointofthisexactly?Whatdoesitmeantofeelthepainofneglectingsomethingthatfeelsnopainatbeingneglectedortofeelangeratbeingneglectedbysomethingthatdoesn'tevenknowitisneglectingyou? Thisshouldnotbeouronlyconcern.Itistroublingthattheserobotstrytoempathizewithchildren.Empathyallowsustoputourselvesintheplaceofotherstoknowwhattheyarefeeling.Robotshoweverhavenoemotionstoshareandtheycannotputthemselvesinourplace.Nomatterwhatroboticcreaturessayorsqueaktheydon'tunderstandouremotionallives.Theypresentthemselvesasempathymachinesbuttheyaremissingtheessentialequipment.Theyhavenotbeenborntheydon'tknowpainordeathorfear.Robotthinkingmaybethinkingbutrobotfeelingisneverfeelingandrobotloveisneverlove. Whatisalsotroublingisthatchildrentakerobots'behaviortoindicatefeelings.Whentherobotsinteractwiththemchildrentakethisasevidencethattherobotslikethemandwhenrobotsdon'tworkwhenneededchildrenalsotakeitpersonally.Theirrelationshipswiththerobotsaffecttheirself﹣esteem自尊.Inonestudyan8﹣year﹣oldboyconcludedthattherobotstoppedtalkingtohimbecausetherobotlikedhisbrothersbetter. Forsolongwedreamedofartificialintelligenceofferingusnotonlysimplehelpbutconversationandcare.Nowthatourdreamisbecomingrealitistimetodealwiththeemotionaldownsideoflivingwithrobotsthatfeel. 1HowarethenewsocialrobotsdifferentfromSiri? A.Theyareintendedtoteachchildrenhowtotalk. B.Theyaredesignedtoattractpeoplewiththeirsmarts. C.Theirmainfunctionistoevaluatechildren'spersonality. D.Theyhaveanewwaytocommunicatewithhumanbeings. 2InParagraph3Cozmoisusedasanexampletoshowthatthesocialrobots. A.aredeeplyconnectedwithhumanbeings B.areunabletobuildarealrelationshipwithchildren C.aresoadvancedthattheycanfeelthepainofhumanbeings D.arenotgoodenoughtocarryouttheinstructionsofchildren 3TheunderlinedphraseessentialequipmentinParagraph4refersto. A.emotion B.pain C.fear D.thinking 4Whichofthefollowingshowsthedevelopmentofideasinthepassage? A.B. C.D. I:IntroductionP:PointSp:Sub﹣point次要点C:Conclusion
洗衣机空调电冰箱等家用电器都使用三孔插头插座如图所示插座中有一个孔是用来接地的．如果在你家中这个孔没有接地将会发生的现象是
Humansandelephantsdon'talwaysgetalong.InAfricaandAsiaelephantsdamageinfrastructurefarmers'cropsandnaturalhabitatimportantforotherspecies.Ifanelephantbecomesaproblemhumansmaykillit.Solocalpeopleandconservationistsaretryingtofindbetterwaystokeepelephantsawayfromsensitiveplaces.Nowresearchersthinktheyhaveagoodtooltopreventelephants:honeybeepheromones信息素. Elephantsdislikebeingstunginthetrunksoit'sanextremelysensitiveorgan.Imaginebeingstunginyournosebyabeeandmultiplythatafewthousandtimes.saidMarkWrightaprofessorofentomologyattheUniversityofHawaiatManoa. Kenyanfarmershavelongknownthatiftheyhanglivebeehives蜂箱aroundtheirfarmstheywilldriveelephantsaway.Theproblemishowtomanagehundredsofthousandsofhivesifyouhaveahugeareatoprotect.Andthentheideacameuptolookatthealarmpheromoneswhicharechemicalsthatthebeesreleasetolaunchanattackonsomethingthat'sdamagingthehive. Sotheresearcherstestedoutanartificialmixtureofchemicalsthatimitateshoneybees'alarmpheromones.InGreaterKrugerNationalParkinSouthAfricatheteamhungwhitesockstreatedwiththeartificialmixtureaswellasuntreatedcontrolsocksaroundanelephantwateringholeandthenobservedtheanimals'behavior.Elephantsarereallycuriouscreatures.They'llwalkalongandseesomethinglikeasockhangingonabranchintheenvironmentandthey'llinspectitandifit'snottreatedwiththealarmpheromonesthey'llpickitupthrowitaroundandtrytotasteitthingslikethat.Andinthecaseofthetreatedoneswefoundthattheywouldshowimmediatesignsofuneaseoruncertaintyandthey'deventuallybackofffromthem.Veryseldomwouldtheygopickthemupandplaywiththem.ThestudyisinthejournalCurrentBiology. Inordertoavoidtheelephantsmoreeffectivelytheresearchersplantomakethepheromonemixturepurer.Thatwaytheseremarkableanimalswillstayfarawayfromwherevertheyshouldnotbegoing﹣﹣andbothelephantsandhumanscancoexistabitmorepeacefully. 1WhatcanweinferfromtheunderlinedwordsinParagraph2? A.Beesenjoystingingelephants. B.Elephants'trunkisasensitiveorgan. C.Yournoseisfrequentlystungbybees. D.Beingstunginthetrunkisunbearabletoelephants. 2Whydidn'ttheresearchershanglivebeehivestokeepelephantsawayfromcrops? A.Becauseit'sofnousetoelephants. B.Becauseit'simpractical. C.Becauseelephantslikethetasteofhoney. D.Becausetheyprefertoinventnewchemicals. 3Paragraph4mainlytellsus. A.howtoimitatehoneybeealarmpheromones B.elephants'reactiontothewhitesocks C.howtheexperimentwascarriedout D.whytheteamhungtwodifferentwhitesocks 4Theresearchwasaimedat. A.betteringtherelationbetweenhumansandelephants B.cuttingdownthenumberofelephants C.preventingelephantsfromdamagingcrops D.protectingelephants
Thefirstyearwasabitlikethefirstyearofamarriage﹣﹣butwith25peopleratherthanjustone.ThatishowJudeTisdalldescribesjoiningaco﹣housingdevelopmentbuiltforwomenover50.Tisdallanartsconsultantinherearly60smovedintotheNewGroundComplexinnorthLondonjustoverayearago. Tisdallwasluckytosecureoneofthe26apartmentsinthedevelopment.ItsL﹣shapeddesignwithasingleentrancethattakesresidentspastthecommonroomisintendedtofostercasualsocialinteractionandthereisacommunalgardenandspacetocookandsharemealstogether.Residentsareagedbetween50and90. ThedevelopmentismanagedbytheOlderWomen'sCo﹣housingcommunitysetuptobringtheprincipleofco﹣housingcommunitiesestablishedinGermanyDenmarktheNetherlandsandtheUK. TherearenotmanyoptionsfortheoldintheUKsaysMariaBrentonafoundingmember.Onethirdofover65sliveontheirownwhichcauseslonelinessandillhealthandtwothirdsofthoseareolderwomen.OlderpeopleIhaveresearcheddon'twanttoliveininstitutionslikeacarehome.Andtheyoftensaytheydon'twanttoendupliketheirparents﹣﹣isolatedandlonely. Withtheworld'spopulationgettingolderandmoreurbantheneedsofolderresidentswillplayanincreasinglyimportantpartintheshapingofcities.AccordingtoUNfiguresthenumberofover60sissettodoubleby2050.Allcitieswillneedtoadapttomeetingthismassivedemographicchange. Currentlymorethan700citiesin39countriesaresignedupfortheWorldHealthOrganization'sglobalnetworkofagefriendlycitiesandcommunitiestopromotehealthyageingandimprovethequalityoflifeforpeopleover60. 1HowdidTisdallfeelaboutjoiningtheco﹣housingdevelopment? A.Disappointed B.Uncomfortable C.Happy D.Relaxed 2What'sthepurposeoftheapartments'specialdesign? A.Tomaketheapartmentsmoresecure. B.Toemphasizeitsuniqueappearance. C.Tokeepresidents'freeofanxiety. D.Topromoteresidents'communication. 3Whatcanweknowabouttheco﹣housingdevelopment? A.Itisonlyaccessibletopeopleover60. B.Itdiffersfromacarehome. C.It'sfirstestablishedintheUK. D.It'sinthechargeofMariaBrenton. 4TheunderlinedwordinParagraph5isprobablyrelatedto. A.controllingsystem B.communitydevelopment C.populationgroup D.healthstate
假定你是学生会__李华.你校将于2019年3月30日举办大湾区与我TheGreaterBayAreaandMe英文演讲比赛以加强粤港澳姐妹学校间的交流与合作.11所高中共30位学生将参加全天比赛.请给外教史密斯先生写一封电子邮件邀请他当评委并作点评. 注意: 1.词数100左右; 2.可以适当增加细节以使行文连贯.
AgrapeseedthatfallsintothesoilofXinjiangisveryfortunateasXinjiangis1wellsuitedforgrowinggrapesthananywhereelse.Hereagrapeseedcangrowtoitsfullpotential.2itshighaltitudes海拔longperiodsofdryweatherandabundantsunshineXinjiangproducesfruitswithextremelyhighsugarcontent.Everyfallalargenumberofgrapes3shipfromXinjiangtootherpartsofChinaandtherestaremadeintoraisinsforeasystorage. InthevineyardsofMoyuthankstothehotanddryclimatethat4resultfrombeingsurroundedbythedeserthugequantitiesoflargeand5juicegrapeswithverythinskinsareproduced.Thesegrapesbringwealthaswellastheirdelicious6sweettothelocals. Inmid﹣September7theirSeedlessWhitegrapesripenlocalfarmersarebusypickinggrapestobetransportedtootherpartsofthecountry.Bunchesofglowingwhitegrapeshangonthevineswaitingtobepicked.Ifyoupickoneandput8inyourmouthyouwill9sureneverforgetthewonderfultasteproducedbythe10burnsunandthedesertwindofsouthernXinjiang.
如图所示当你手握饮料罐时手与罐都在空中静止且罐底所在平面是水平的下列选项中哪两对力属于平衡力
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:在缺间处加一个漏字符号并在其下面写出该加的词. 删除:把多余的同用斜线\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. DuringmylastsummerholidayIgotothecountrysidetoenjoymyself.Isawmotherbirdstayinhernestinabigtreewatchingsomeofherbabyflyingaway.Ithoughtshemustbeveryproudofherchildrenthatwereabletofindherownfoodnow.Butshemightalsofeelasenseoflosssincetheywouldn'tneedofherday﹣to﹣daycareanylong.Formyparentsthingsaremucheasier.Wehavesetupourfamilyblogtopostingourphotosandjournals.OnceIleaveforcollegewecanconvenientshareourexperiencesbutsupporteachother.Theirnestwillneverbeempty.
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