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若实数x,y满足约束条件,则z=3x+2y的最小值为 ;最大值为 ,
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高一下学期数学《》真题及答案
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位于湖南省西北部距离湖南省会长沙约300公里占地面积9563平方千米的张家界是一座因独特的自然景色和丰富的旅游资源而闻名的旅游城市.
Mostdogownersfeelthattheirdogsaretheirbestfriends.Almosteveryonelikesdogsbecausetheytryhardtopleasetheirowners.Oneofmyfavoritestoriesisaboutadogwhowantedtheownertopleasehim.OneofmyfriendshasalargeGermanshepherd牧羊犬namedJack.Thesedogsareoftenveryintelligentclever.EverySundayafternoonmyfriendtakesJackforawalkinthepark.Jacklikestheselongwalksverymuch. OneSundayafternoonayoungmancametovisitmyfriend.Hestayedalongtimeandhetalkedandtalked.SoonitwastimeformyfriendtotakeJackforhiswalkbutthevisitordidn'tleave.Jackbecameveryworriedabouthiswalkinthepark.Hewalkedaroundtheroomseveraltimesandthensatdowndirectlyinfrontofthevisitorandlookedathim.Butthevisitorpaidnoattention.Hecontinuedtalking.FinallyJakcouldn'tstanditanylonger.Hewentoutoftheroomandcamebackafewminuteslater.Hesatdownagaininfrontofthevisitorbutthistimeheheldtheman'shatinhismouth. Germanshepherdsaren'ttheonlyintelligentdogs.AnotherintelligentdogisaSeeingEyedog.Thisisaspecialdogthathelpsblindpeoplewalkalongthestreetsanddomanyotherthings.WecallthesedogsSeeingEyedogsbecausetheyaretheeyesoftheblindpeopleandtheyhelpthemtosee.SeeingEyedogsgenerallygotospecialschoolsforseveralyearstolearntohelpblindpeople. 1Jackcametositinfrontofthevisitorinorderto. A.pleasehim B.bepleased C.askhimtoleaveimmediately D.invitehimforawalk 2WhatdoesitinthesentenceJackcouldn'tstanditanylongerreferto? A.hiswalkingaroundtheroomseveraltimes B.hissittinginfrontofthevisitor C.hisowner'svisitor'ssayingandtalking D.hiswalkinginthepark 3SeeingEyedogs. A.aremoreintelligentthanGermanshepherds B.haveonlyoneeye C.helpblindpeoplegotospecialschools D.helpandseeforblindpeople 4WhichofthefollowingstatementsisRIGHT? A.Mostdogsareveryintelligent. B.ItusuallytakesseveralyearsforSeeingEyedogstolearntohlpblindpeople. C.Germanshepherdsarethemostintelligentdogsintheworld. D.SeeingEyedogscanonlyhelpblindpeoplewalkalongthestreets.
Maryhadfearedthedayshewoulddrawablankduringapresentation.Thenonedayduringa45﹣minutespeechithappened.1.TohelpherselfgetbackontrackMaryaskedtheaudiencetolookatthehandoutandtellherwhattopicwasupnext.Attheendofherpresentationaudiencemembersgavehertopmarksfororganization. WhatIlearnedisthattheaudiencedoesn'tcareifyoumessupandwhattheycareaboutiswhatyouaregoingtodoaboutitMarysaid.MynervousnesswentawaywhenIconcentratednotonmyselfbutinsteadjustthought‘Howismyspeechgoingtohelptheaudience?'2.Everysinglestepofthewayaskyourself‘What'sinitforthem?' ●3. CarteristhefounderofCanada﹣basedpresentationskillstrainingcompany.Whenpossiblehegetstothelocationofhispresentationthedaybeforetomakesurealltheelectronicaidswork.Hewantstoensurethescreenlightingandinputsallworkproperly.Inadditionbuildanextraplanbeforeyoupresent.hesaid. ●Involvetheaudience Whetheryouaregivingaone﹣on﹣onetalkoraspeechinfrontof400peoplethinkstory﹣telling.4.Thewaytoaperson'sheadisthroughhisheart.Sometimesallittakesisafewsecondstoconnectanaudiencememberwithastory. Moreoveronethingthatshockspeoplebackintoattentionistoleaveanalmostuncomfortablylongpause.5. A.Beprepared B.Keeporder C.Sheforgotwhatshewasgoingtosay D.Thatbringsthembacktothespeaker E.Onceyoudothatitgetsridofthefear F.Story﹣tellingmakesmessageseasytoremember G.Storiescombinedataandinformationwithemotion
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Howtobenaturallyfunny Peoplewhoarenaturallyfunnyinsocialsituationsexperiencemanybenefits.Numerousstudieshaveshownthathumorreducessocialanxietyhelpstoeasetensionandhasanumberofpositiveemotionalandpsychologicaleffects.Inadditionithasbeenshownthatfunnypeoplemaybemoresuccessful.Howeveritisimportantthatbeingfunnycomesacrossnaturallyinalaid﹣backandspontaneous即兴的fashion.1 1.Startbylooseningup! 2Rememberthatlaughteriscontagious可传染的soifyoucarryyourselfinanopenandhumorouswaypeoplewillbereadytolaugh.Tobreaktheiceyoumayfollowtheleadofothersifyouneedto. 2.Lookforhumorineverydayevents. Manycomediansfocusontheworldaroundthemtofindcomedicmaterial.3Trymakingagoalofnoticing5funnythingsperdaythathappentoyou.Throughthistechniqueyouwillbegintoseehumorinmundanesituationsthateveryonewillappreciate. 3.4 Weallhavefriendswhoarealwaysgoodforalaugh.Whatisitthatmakesthemfunny?Whenyouseethempaycarefulattentiontowhatmakesthemfunny.Isittheirtoneofvoicebodylanguagecontentgeneraldemeanororsomethingelsethatmakesthemnaturallyfunny.Identifyingwhatisthatmakesthemfunnywillprovidecluesforhowyoucanbenaturallyfunnyaswell. 4.Practicebeingfunny. Makeityourgoaltosayordosomethingthatmakessomeonelaughonceaday.5Thereforeprofessionalcomediansoftenspendyearsdevelopingtheiruniquestyle.Bystartingsmallyouwillbeonyourwaytobeingnaturallyfunnyingeneralconversation. A.Agoodsenseofhumordoesnotappearovernight. B.Visitwithanaturallyfunnyfriendoracquaintance. C.Ifyoufindsomethingfunnyshareitwithafriendwhoyouthinkwillfindthisfunnyaswell. D.Havinghumorcomeacrossasforcedandawkwardcanhaveanegativeimpactuponsocialsituations. E.Otherslooktotheirpastexperiencessuchastheirchildhoodorpastrelationshipsasawaytomakepeoplelaugh. F.Whileotherswillnotalwaysunderstandyourhumoryoucanusetheirreactionstohelpimproveyourstylecontentandtiming. G.Beingtoouptightandself﹣consciousareroadblockstodevelopingandcommunicatinganaturalsenseofhumorthatisrelatabletootherpeople.
Forasmanyas8000yearsbeforeEuropeancontacttheSanJuanIslandswereinhabitedbytheNorthernStraitsSalishpeoplesandothernativepeopleseasonallypreservingfoodinsummerforwintersspentelsewhere.Allweredrawntotheislandsbytherichabundanceoffoodandmaterialsfoundhere. Inthemid﹣1800sacompanycametotheSanJuanIslandsfollowingitsnumerousinternationaltraderoutes.OneemployeeknownasFridaysettledalonetheareaofwhatisnowthetownofFridayHarbor.ThiscausedmanytorefertotheplaceasFriday'sHarbor. By1900FridayHarborhadapopulationofonlythreeorfourhundredresidents.Roadandtelephonenetworkslinkedthetowntotherestoftheisland.Thecommunitywasgrowingandmanypublicfacilitieshadadded.Whatthesebuildingshadincommonwassimplicityofdesign.Theywereattractiveandfunctionalbutwithoutcomplexdecoration.Typicallybothresidentialandcommercialbuildingswerebuiltwithlocalwood.Moneywassolittlethatitcouldn'tbeusedfortheunnecessaryandsomostbuildingswerepaintedwhitemoreforfunctionalprotectionagainstrotthanfordecoration.Thetownworeapoorlookuntilthelate1960swhentourismretirementrealestate房地产constructiontheartsandavarietyofcottageindustriesbegantotakehold.Todaythetownisagainbusyandbooming.Over6000peopleliveinthetown. Thoughthetraditionalindustrieshaveallbutvanishedtherearestillmanyvisibleremindersofthepioneerera﹣100﹣yearoldorchards果园kitchengardensturn﹣of﹣the﹣centurywoodenbuildingsandcompanionablerooflines﹣allacquaintislandersandvisitorsalikewithFridayHarbor'sspiritedearlydays. 1HowdidtheSanJuanIslandshelptheancients? A.Theyprovidedthemwithatemporaryshelter. B.Theyfunctionedastouristspots. C.TheyprotectedthemfromcolonialEuropeans. D.Theyplayedaroleasaninternationaltradecentre. 2WheredidthenameofFriday'sHarborcomefrom? A.Thenameofthecompany. B.Thedaywhenitwasfound. C.Aninternationaltraderoute. D.Thefirstresidentofthetown. 3WhatdoesParagraph3mainlytellus? A.TheFridayHarbor'sfuture. B.TheFridayHarbor'sdevelopment. C.TheFridayHarbor'spopulation. D.TheFridayHarbor'sarchitect. 4WhatattractsvisitorstotheFridayHarbor? A.Therichabundanceoffood. B.Thebusybutwealthylife. C.Theuniquehistoricsites. D.Thecomfortablecommunity.
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Iwasasingleparentoffoursmallchildrenworkingatalow﹣paidjob.Moneywasalways1butwehadaroofoverourheadsfoodonthetable2onourbacks.ItwasChristmastime.We3downtowntoseetheChristmaslightsandenjoyedaspecialdinner4thebigexcitementforthekidswasthefunofChristmas5atthemall购物中心.Theytalkedandplannedforweeksaheadoftime6eachotherwhattheywantedforChristmas. Thebigdayarrived.I7eachofthefourkidsatwenty﹣dollarbillandaskedthemto8forgifts.Theneveryonescattered散开. Backinthecardrivinghomeeveryonewas9aboutChristmaslaughingandaskingeachotheraboutwhattheyhad10.InoticedGingermyyoungerdaughterhadonlyonesmallandflatbagwithher.Icould11enoughthroughtheplastic12totellthatshehadboughtcandybars﹣﹣﹣fifty﹣centcandybars!Whatdidshe13withthattwenty﹣dollarbillIhadgivenher?Iwasso14.AftergettinghomeIcalledherintomybedroomandclosedthedoor.Thiswaswhatshetoldme Iwaslookingaround15ofwhattobuyandI16toreadthelittlecardsononeoftheSalvationArmy'sGivingTrees.Oneofthecardswas17alittlegirlfouryearsoldandallshe18forChristmaswasadollwithclothesandahairbrush.SoItookthecardoffthe19andboughtthedollforher.Wehavesomuchandshedoesn'thaveanything. Myanger20andIhadneverfeltsorichasIdidthatday. 1A.powerful B.tight C.valuable D.available 2A.books B.babies C.bags D.clothes 3A.drove B.ran C.rode D.walked 4A.since B.and C.but D.because 5A.working B.shopping C.eating D.playing 6A.reading B.studying C.helping D.asking 7A.gave B.sent C.passed D.dropped 8A.wait B.beg C.search D.apply 9A.curious B.excited C.careful D.nervous 10A.served B.found C.received D.bought 11A.see B.take C.get D.judge 12A.hairbrush B.card C.bag D.bar 13A.play B.do C.gain D.begin 14A.worried B.satisfied C.happy D.angry 15A.thinking B.reminding C.dreaming D.hearing 16A.regretted B.stopped C.hesitated D.returned 17A.on B.along C.for D.with 18A.wanted B.prepared C.sold D.saved 19A.roof B.window C.tree D.doll 20A.increased B.continue C.lost D.disappeared
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CassandraFeeleyfindsithardtomanageonherhusband'sincome.SothisyearshedidsomethingmorethanahobbySheplantedvegetablesinheryard.ForherfirstgardenMs.Feeleyhasputin40tomatoplantsandfiverowsofavarietyofvegetables.Thefamily'soldfarmhousehasbecomeachickenhouseitsresidentsarrivingnextmonth.LastyearMs.RitaGartinkeptasmallgarden.ThisyearshehasmadeitmuchlargerbecauseshesaidThecostofeverythingisgoingupandIwaslookingtoloseafewpoundstoosoit'sawin﹣winsituationallaround. TheyareamongthegrowingnumberofAmericanswhodrivenbyhigherlivingcostsandafallingeconomyhavetakenupvegetablegardeningforthefirsttime.Othershaveincreasedthesizeoftheirexistinggardens.Seedcompaniesandgardenshopssaythatnotsincethe1970shastherebeensuchanincreaseininterestingrowingfoodathome.Nowmanygardensacrossthecountryhavebeensoldoutforseveralmonths.InAustinTex.someofthegardenshaveathree﹣yearwaitinglist. GeorgeC.BallJr.ownerofacompanysaidsalesofvegetableseedsandplantsareupby40%overlastyeardoubletheaveragegrowthofthelastfiveyears.Mr.Ballarguesthatsomeofthereasonshavebeenbuildingforthelastfewyears.Thebigoneisthestrikingriseinthecostoffoodlikebreadandmilktogetherwiththeincreasesinthepriceoffruitsandvegetables.Foodpriceshaveincreasedbecauseofhigheroilprices.Peoplearenowdrivinglesstakingfewervacationssothereismoretimetogarden. 1WhatdoesthewordresidentsinParagraph1probablyreferto? A.tomatoes B.chickens C.gardens D.people 2Whyisvegetablegardeningbecomingincreasinglypopular? A.There'sagrowingneedforfruits. B.Thepriceofoilislowerthanbefore. C.Thecostoflivingisgenerallyontherise. D.MoreAmericansaretryingnewthingsorfun. 3Whichofthefollowingmightbethebesttitleforthetext? A.ABelttighteningMove B.FamilyFoodPlanning C.BankingonGardening D.GardeningasaHobby
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OceanParkAcademyHongKongOPAHK1provideenvironmentaleducationalprograms2blendinto融入theschoolcurriculum.Theseprogramsofferdiverselearningopportunitiesandencouragestudentstoappreciateandbondwithnature.Theyinclude3experientiallearningapproachwithstudentsmakingdiscoveriesandreceivinginspirationthrough4theyownobservations. Inour5lateprogramsthelearningprocessisevenmoreinteractiveandstudentslearnthrough6explore.Therearemoreopportunitiesforactiveparticipationandmoretimeforreflectionand7share.Students'insightscanthenbeintegratedintotheirdailylives.ASTEAMelementisprogressivelyintroduced8ourschoolprogramstomotivatethestudents9thinkandtofacilitateself﹣learning.OPAHKalsofeaturesaTeacherDayCamptoinspireandassistteacherswithimplementingenvironmentaleducation.10in﹣parkactivitiesOPAHKalsoorganizesoutreachseminars推广研讨会andproject﹣basedlearningprogramsinschools.
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