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如图,在△ABC中,∠ABC=∠ACB,以AC为直径的⊙O,分别交AB、BC于点M、N,点P在AB的延长线上,且∠OAB=2∠BCP. (1)求证:直线CP是⊙O的切线; (2)若BC=2,si...
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如图在Rt△ABC中∠ACB=90°E.是BC的中点以AC为直径的⊙O.与AB边交于点D.连接DE1
如图在Rt△ABC中∠ACB=90°以AC为直径的⊙O.与AB边交于点D.过点D.作⊙O.的切线交B
如图在Rt△ABC中∠ACB=90°AC=6AB=10CD是斜边AB上的中线以AC为直径作⊙O.设线
点P.在⊙O.内
点P.在⊙O.上
点P.在⊙O.外
无法确定
如图⊙O.是△ABC的外接圆直径AD=4∠ABC=∠DAC则AC长为
如图在R.t△ABC中∠ACB=90°以AC为直径的⊙O.与AB边交于点D.过点D.作⊙O.的切线交
如图在Rt△ABC中∠ACB=90°以AC为直径的⊙O.与AB边交于点D.过点D.的切线交BC于点E
如图在△ABC中∠ABC与∠ACB的平分线交于点O.过点O.作DE∥BC分别交AB.AC于点D.E.
8
8.5
9
11
如图在⊙O.中∠ACB=∠D.=60°AC=3则△ABC的周长为_________
.如图在△ABC中AB=4AC=6∠ABC和∠ACB的平分线交于O.点过点O.作BC的平行线交AB于
如图在Rt△ABC中∠ACB=90°以AC为直径的⊙O与AB边交于点D过点D的切线交BC于点E.1求
如图在Rt△ABC中∠ACB=90°以AC为直径的⊙O与AB边交于点D过点D的切线交BC于点E.1求
如图在RtΔABC中∠ACB=90°以AC为直径的⊙O.与AB交于D.过D.作⊙O.的切线交BC于E
如图△ABC内接于⊙OAC是⊙O的直径∠BDC=40°点D在⊙O上则∠ACB=
20°
30°
40°
50°
如图①在△ABC中点D.在边BC上∠ABC:∠ACB:∠ADB=1:2:3⊙O.是△ABD的外接圆.
如图△ABC中∠ABC=∠ACB以AC为直径的⊙O分别交ABBC于点MN点P在AB的延长线上且∠CA
如图在△ABC中∠ABC与∠ACB的平分线交于点O.过点O.作DE∥BC分别交ABAC于点D.E.若
如图在Rt△ABC中∠ACB=90°以AC为直径的⊙O与AB边交于点D过点D作⊙O的切线交BC于点E
如图在Rt△ABC中∠ACB=90°AC=3BC=4以AC为直径的圆交AB于点D.求BDCD的长.
如图在Rt△ABC中∠ACB=90°AC=6AB=10CD是斜边AB上的中线以AC为直径作⊙O.设线
点P.在⊙O.内
点P.在⊙O.上
点P.在⊙O.外
无法确定
如图在△ABC中已知AB=5BC=6∠ABC和∠ACB的角平分线BO与CO相交于点O.OE∥ABOF
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8分Whilewemaythinkitfeelsgoodtocomplaincomplaininghassomebadeffectsassociatedwithit. Whyisn'tcomplainingbeneficialResearchshowsthatitconnectsourbrainwithnegativity.Thebrainisdesignedtoworkefficiently.Thismeansthatwhenwerepeatathoughtnegativeorpositivethenervecellsformabridgebetweeneachothertopassinformationinahigherspeed.Thereforethenexttimewehaveasimilartypeofthoughtitismoreeasilypassed.Thisexplainswhycertainthoughtpatternsbecomehabits. Yettheharmfuleffectsdon'tstopthere.Astudyshowsthatcomplainingcausesthehippocampus海马区whichplaysavitalroleinproblem﹣solvingtobecomesmaller. Inadditiontocausingbraindamagecomplainingalsoreleasesastresshormone:cortisolakindofchemicalthebodyproduceswhenwemeetwithsomedanger.Constantlyhavingahighlevelofcortisolresultsinhighbloodpressurehighbloodsugarandlowerimmunity免疫力. Theilleffectsofourcomplainingaren'tjustlimitedtoourselves:theyalsoinvolvethosearoundus.Wetendtomirrorthemoodsofourfriends.Forthisreasonweshouldbecautiousabouthavingstubborncomplainersinourcircleofcompanions. Thebestwaytodealwithconstantnegativityistodevelopasenseofgratitude感恩.Justlikecomplainingactsasapoisongratitudeactsasamedicine.Researchshowsitlowerscortisollevelsby23percentaswellasreducesbloodpressureandbloodsugar.Italsodecreasestirednessanddepression.Gratitudeistheperfectcureforcomplainingabehaviorthatstealsourbrainpowerhappinessandphysicalwell﹣being. WhathaveyouobservedabouttheeffectsofcomplaininginyourownlifeorinthelivesofothersHaveyounoticedthatwhenyouaregratefulyoufeelbetteralloverPleaseshareyourthoughtsinthecommentssectionbelow. 1WhatdoPara2﹣3mainlytalkabout A.Thediseasescausedbycomplaining. B.Thedecreaseofavitalpartofourbrain. C.Thebadeffectsofcomplainingonbrainpower. D.Thereasonwhycertainthoughtpatternsbecomehabits. 2Whatcanweknowaboutcortisolfromthepassage A.GratitudeisaneffectivecureforCortisol. B.Ourbodyproducecortisolwhenwefeelexited. C.Cortisolisachemicalthatcancausebraindamage. D.Havingahighlevelofcortisolcanleadtomanyhealthproblems. 3Whatattitudedoesthewritertaketostubborncomplainers A.Grateful. B.Tolerant. C.Disapproving. D.Skeptical. 4Wherecanthepassagemostprobablyappear A.Inanewspaper. B.Inamedicalreport. C.Onawebsite. D.Inaradioprogram.
8分TheTyrannosaumsrexalsocalledT.rexisknownforbeingkingofthedinosaurs.Howeverdinosaursinthesamefamilyweren'talwayssuchhugebeasts.EarlyancestorsoftheT.rexwereprettytinyscientistssay. ScientistshaveidentifiedanewcousinoftheT.rex.Thisdinosauronlyreachedaheightof3feet.That'sroughlytheheightofatoddler.Ifitstretcheditsduck﹣billedheadanadulthumanmaybewouldbelookingatitintheeyesaidSterlingNesbitt.Hediscoveredthedinosaur.NesbittisapaleontologistatVirginiaTech.Apaleontologistisapersonwhostudiesfossils. ThenewdinosauriscalledSuskityrannushazelae.Theanimaldatesback92millionyears.Thisisabout20millionyearsbeforetheT.rexstompedtheEarth. Thenewlydiscoveredcousinwasaboutthreetimeslongerthanitwastall.Itweighedbetween45and90pounds.That'salmostnothingcomparedtothe9﹣tonT.rex.TheT.rexweighednearlyasmuchastwohippos. Suskityrannushazalaeisn'tthefirstorevensmallestoftheTyrannosaurusfamilytree.StillNesbittsaiditprovidesthebestexampleofhowthisfamilyofsmallerdinosaurschangedovermillionsofyears.Theybecametoweringbeasts.ThehugeT.rexisthesubjectofhorrormovies. HansSuesstudiesancientlivingthingsattheSmithsonianInstitution.Hewasn'tpartofthestudy.Suessaiditwasanimportantfind.SuskityrannusisthefirstreallygoodrecordoftheearlytyrannosaursinNorthAmericahesaid. Thesemeat﹣eatersweren'tparticularlybigcomparedwithotherdinosaursaliveatthattime.Itisunclearwhydinosaursinthisgrouplaterbecamesoenormous. Nesbittsaidthenewlydiscoveredspeciesisprobablyamongthelastofthelittleguys.Itwasbiggerthanearliertyrannosau.andhadbigfeetneededforspeed.TheT.rexlostthese. 1WhySuskityrannushazelaeisthoughttobeagoodexamplefromtheTyrannosaurusfamilytree A.Itshowsthattyrannosaurswerequiteheavy. B.Itisthefastesttyrannosaureverfound. C.Itshowshowthetyrannosaurschangedovertime. D.Itisthesmallesttyrannosaureverfound. 2HowwasSuskityrannushazelaedifferentfromT.rex A.ItwassmallerthanT.rex. B.ItwasbiggerthanT.rex. C.ItatemoreplantsthanT.rex. D.ItranmoreslowlythanT.rex. 3WhichstatementistrueaboutT.rex A.Ithadaduck﹣billedhead. B.ItwasdiscoveredbyNesbitt. C.Itwasasheavyasahippo. D.Itwasameat﹣eatinganimal. 4Inwhichsectionofanewspapermaythistextappear A.Entertainment. B.Health. C.Education. D.Science.
已知am=3an=2则a2m-n的值为
25分假定你是李华.你在网上得知在你市留学的Larson最近总是失眠你决定给予他帮助.就此请你用英语给他写封电子邮件内容包括: 1.进行安慰; 2.询问失眠的具体原因; 3.约定地点以便当面详谈. 注意: 1.词数100左右; 2.可以适当增加细节以使行文连贯.
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8分IeohMingPeioneofthelastgreatmodernistarchitectshasdiedaged102.AlthoughheworkedmostlyintheUnitedStatesPeiwillalwaysberememberedforaEuropeanproject:hisredevelopmentoftheLouvreMuseuminParisinthe1980s. PeiwasthefirstforeignarchitecttoworkontheLouvreinitslonghistoryandinitiallyhisdesignswerefiercelyopposed.ButintheendtheFrench﹣andeveryoneelse﹣werewonover.HisglasspyramidoutsidetheLouvrecompletedin1989isnowoneofParis'mostfamouslandmarks. PeiwasborninChinain1917intoawealthyfamily.Hisfatherwasabanker.Hisartisticmother﹣acalligrapherandmusician﹣hadthegreaterinfluenceonhim.DespitenotspeakingEnglishhemovedtotheUSattheageof18tostudyatPennsylvaniaMITandHarvard.HeworkedasaresearchscientistfortheUSgovernmentduringWorldWarTwoandwentontoworkasanarchitectfoundinghisownfirmin1955.Hecarriedonworkingwellintooldagecreatingoneofhismostfamousmasterpieces﹣theMuseumofIslamicArtinDohaQatar﹣inhis80s. HehasdesignedbuildingshotelsschoolsandotherstructuresacrossNorthAmericaAsiaandEurope.HisotherworkincludesDallasCityHallandJapan'sMihoMuseum.HisstylewasinfluencedbyhisloveofIslamicarchitecture.Hisfavouredbuildingmaterialswereglassandsteelwithacombinationofconcrete. HewonavarietyofawardsandprizesforhisbuildingsincludingtheAIAGoldMedalthePraemiumImperialeforArchitecture.In1983PeiwasgiventhefifthPritzkerArchitecturePrizeforgivingthe20thcenturysomeofitsmostbeautifulinteriorspacesandexteriorforms.Heusedhis$100000prizemoneytostartascholarshipfundforChinesestudentstostudyarchitectureinAmerica. InpersonPeiwasalwaysneatlydressedgood﹣temperedcharmingandunusuallymodest. 1WhatdoweknowaboutPeiandhisworkontheLouvreMuseum A.TheFrenchapprovedofhisdesignsatfirst. B.PeiwastheonlyforeignexpertemployedbytheLouvre. C.Peimadeuseofglassinhisdesigns. D.Peiretiredaftercompletingthework. 2Whichisthecorrectorderoftimeforthefollowingfactsinthepassage ①HereceivedthePritzkerArchitecturePrize. ②Hefoundedhisownfirm. ③HecreatedtheMuseumofIslamicArt. ④Heworkedasaresearchscientist. A.①③②④ B.④①②③ C.④②①③ D.①④③② 3WhatwordscanbeusedtodescribePeiaccordingtothepassage A.Productiveandhumorous. B.Generousandmodest. C.Determinedandoutgoing. D.Attractiveandresponsible. 4Whatcanbethebesttitleofthepassage A.LouvrePyramidArchitectDiesAged102 B.PrizesAwardedtoPei C.LandmarksCreatedbyPei D.AFamousArchitectPassedAway
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求下列各式中未知数的值|a-2|=
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若=2=-3则b-a的值是
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计算-3a42-a·a3·a4-a10÷a2
15分Playingisseriousbusinessforchildren.As1matteroffactit's2theydobest!AskthemwhytheydoitandkidswillprobablysayBecauseit'sfun!Butit'smuchmorethanthat.It'salsogoodforthem.Studiesshowthatfrombirthbabiesbeginlearningthroughplay.Theyuse3themfivesensestogetknowtheirnewworld. Touchingallowsthem4discoverhowdifferentthingsfeel.Brightlycoloredtoysandclothinghelpdevelopababy'ssenseofsight. Whensmallchildrenchoosewhichtoytoplay5theybegindevelopingtheirabilitiesin6makedecisions.Childrenlovetoysthatallowthemtousetheir7imagine.Sometimesanemptyboxismorefunthanahigh﹣techtoy.That's8aboxcanbecomeanythingachildimaginesittobe.CrayonspaintsandPlay﹣Doh彩色塑泥arealsogoodbecausetheyallowchildrentocreate.9traditionbuildingblocksteachimportantpre﹣mathskillslikeproblem﹣solving. Playingdoesn'tbecomeanylessimportantoncechildrenstartschool.Manyvaluablelessonsaboutlife10learnontheschoolplayground.Kidslearnhowtosharetaketurnsandplaybytherules.
30分Bookshavegreatpower.Betweentheir1readerscanbetransportedtoanywhereimaginableandbecomejustaboutanyone…oranything.Unfortunatelymanychildrenallovertheworlddon'thave2tobooks. ForseveralyearsnowMariaKellerateenagerfromMinneapolisMinnesotahasbeentryingto3thatfact. Whenshewas8yearsoldMariaalready4reading.Shealsonoticedthatsomeofher5didn'treadasmuchasshedid.Whenshe6hermotherwhythatwashermothersaidthattheymightnotbeableto7books.Mariahadneverthoughtofthis.Shecouldn't8thatsomechildrendidn'thavebedtimestoriesreadtothemandshebecame9tochangethis. Withhermother'shelpMaria10ReadIndeedwhichisanon﹣profitorganizationdedicated致力于tocollectinganddistributingbookstochildren11. DuringtheearlystagesofReadIndeedMariasetthe12ofcollectinganddistributing1millionbooksbythetimeshewas18. Itdidn'ttakelongto13thatgoal﹣todateshehascollectedover2.4millionbooksandhas14themtomanystatesandcountriesaroundtheworld. ShesaidIcannotlivewithout15.AsIcontinuemymission使命Ihavelearnedthatthe16ofkidswhohavenobooksisinthehundredsofmillions.SoIjustcan't17evenafterreachingmy18goalof1millionbooks. Sherecentlysetanewgoal:to19donationstokidsinneedineverystateintheUSandeverycountryintheworld.Shekeepstrackofher20onalargemapatthewarehouse仓库whereherbooksarestoredandsorted. 1A.themes B.pages C.blanks D.columns 2A.access B.time C.power D.regard 3A.accept B.introduce C.change D.understand 4A.imagined B.advised C.escaped D.loved 5A.classmates B.students C.teachers D.relatives 6A.showed B.asked C.required D.reminded 7A.choose B.spare C.afford D.keep 8A.decide B.explain C.believe D.agree 9A.excited B.worried C.satisfied D.determined 10A.contacted B.created C.studied D.discovered 11A.insafety B.indanger C.introuble D.inneed 12A.goal B.point C.rule D.limit 13A.set B.get C.reach D.start 14A.sold B.shipped C.lent D.returned 15A.food B.water C.friends D.books 16A.number B.variety C.reasons D.doubts 17A.setoff B.getaway C.dropoff D.giveup 18A.common B.original C.important D.distant 19A.distribute B.collect C.attach D.devote 20A.experience B.research C.progress D.investment
6分DoyouwanttodosomevolunteerworkwhileexploringAfricaThenjoininour21﹣DayFlagshipProgram.StepontotheflatsandylandofGhanaandyou'llimmediatelyhearthelaughterofchildreneverywhere.Thislaughterwillbetheconstant常数恒量ofyourtripandasteadysourceofenergywhileyouvolunteeramongoneofAfricaskindcommunities. CommunityService VolunteerinprimaryschoolsworkingwithchildrenofdifferentagestohelpimprovetheirEnglishskillstutor担任…的家教thosewhomightbefallingbehindandcontributetoeachschool'sneedsincludingmakingimprovementstothefacilities设施设备.Splityourtimebetweenteachingandcampusrefurbishment翻修projectstoserveeveryaspectoftheschoolandlearnallabouteducationinGhana. Hands﹣onLearning Participateinworkshopssuchasbatikclothdyeing蜡染drummingdancingandcrashcoursesinthenativelanguageEweorKrobo.You'llbegivenaGhanaiannamebythelocalchiefofyourvillageandvisitaseamstress女裁缝tohavecustomclothingmadeoutofcolorfulfabricsyoupurchase购买.Onthe21﹣DayFlagshipProgramyou'llhearaboutthenation'shistoryasacenteroftheslavetradeandvisitFortPrinzensteintotrulyunderstandthesignificanceofthistopic. Adventure You'llalsoexperiencethenaturalsurroundingsofGhanawithabeautifulwaterfallhike:Onyour21﹣DayFlagshipProgramgoonatwo﹣nighttripwhereyou'llgettovisitamonkeyshelter. Lodging GlobalLeadershipAdventuresGLAoperatestwoHomeBasesforthe21﹣dayprogram.BotharelocatedoutsideofthecapitalcityofAccrainruralvillagesettings.Accommodationsarebasicbutcleanandsafe.Studentssleepinroomswithroommatesandhaveaccesstosharedbathroomswithcold﹣watershowers. Dates June26﹣July162019 July9﹣July292019 July20﹣August92019 Duration:21days Tuition:﹩5399 CommunityServiceHours:60 Formoreinformationpleasecall1﹣858﹣771﹣0645orsendanemailtoinfo@experiencegla.com. 1Whichofthefollowingisarequirementforparticipants A.BeingabletospeakEnglishwell. B.Beingstrongandover18yearsold. C.KnowingalotabouteducationinGhana. D.Havingdonesimilarvolunteerworkbefore. 2WhatcanbedoneatFortPrinzenstein A.Learningtoplaydrums. B.Visitingacustomclothingfactory. C.Learningaboutthenation'spasthistory. D.ChoosingaGhanaiannameforyourself. 3Whatwouldparticipantshavetodowhenjoiningintheprogram A.StayinGhanaforthreeweeks. B.Accompanymonkeysfortwonights. C.Pay5399dollarsforthewaterfallhike. D.Dovolunteerworkforatmost40hours.
10分ImusthavealwaysknownreadingwasveryimportantbecausethefirstmemoriesIhaveasachilddealwithbooks.TherewasnotonenightthatIdon'tremembermomreadingmeastorybookbymybedside.Iwasextremelyinspiredbytheelegantwaythewordssounded. Ialwayswantedtoknowwhatmymomwasreading.HearingmomsayIcan'tbelievewhat'sprintedinthenewspaperthismorningmademewanttograbitoutofherhandsandreaditmyself.Iwantedtobelikemymomandknowallofthethingssheknew.SoIcarriedaroundabookandeachnightjusttobelikeherIwouldpretendtobereading. Thisishoweveryonelearnedtoread.Wewouldstartoffwithsentencesthenparagraphsandthenstories.Itseemedanunendingjourneybutevenasasix﹣year﹣oldgirlIrealizedthatknowinghowtoreadcouldopenmanydoors.WhenmomsaidTheC﹣A﹣N﹣D﹣YishiddenonthetopshelfIknewwherethecandywas.MyprogressinreadingraisedmycuriosityandIwantedtoknoweverything.IoftenfoundmyselftellingmymomtodrivemoreslowlysothatIcouldreadalloftheroadsignswepassed. Mostofmyreadingthroughprimarymiddleandhighschoolwasfactualreading.IreadforknowledgeandtomakeA'sonmytests.OccasionallyIwouldreadanovelthatwasassignedbutIdidn'tenjoythistypeofreading.Ilikedfactsthingsthatareconcrete.Ithoughtanythingabstract抽象的lefttoomuchroomforargument. YetnowthatI'mgrowingandtheworldIonceknewasbeingsosimpleisbecomingmorecomplexIfindmyselfneedingawaytoescape.ByopeninganovelIcanleavebehindmyburdensandenterintoawonderfulandmysteriousworldwhereIamnowanewcharacter.IntheseworldsIcanbecomeanyone.Idon'thavetowritedownwhathappenedorwhattechniquetheauthorwasusingwhenheorshewrotethis.Ijustreadtorelax. We'retaughttoreadbecauseit'snecessaryformuchofhumanunderstanding.Readingisavitalpartofmylife.Readingsatisfiesmydesiretokeeplearning.AndI'vefoundthatthepossibilitiesthatliewithinbooksarelimitless. 1Whydidtheauthorwanttograbthenewspaperoutofmom'shands A.Shewantedmomtoreadthenewstoher. B.Shewasanxioustoknowwhathadhappened. C.Shecouldn'twaittotearthenewspaperapart. D.Shecouldn'thelpbutstopmomfromreading. 2AccordingtoParagraph3theauthor'sreadingofroadsignsindicates A.heruniquewaytolocateherself B.hereagernesstodevelopherreadingability C.herefforttoremindmomtoobeytrafficrules D.hergrowingdesiretoknowtheworldaroundher. 3Whatwastheauthor'sviewonfactualreading A.Itwouldhelpherupdatetest﹣takingskills. B.Itwouldallowmuchroomforfreethinking. C.Itwouldprovidetrueandobjectiveinformation. D.Itwouldhelpshapearealisticandseriousattitudetolife. 4Theauthortakesnovelreadingasawayto. A.exploreafantasyland B.developapassionforleaning C.learnabouttheadultcommunity D.getawayfromaconfusingworld 5Whatcouldbethebesttitleforthepassage A.TheMagicofReading B.ThePleasureofReading C.GrowingUpwithReading D.ReadingMakesaFullMan
8分Mostofusaretaughttopayattentiontowhatissaid﹣thewords.Wordsdoprovideuswithsomeinformationbutmeaningsarederivedfromsomanyothersourcesthatitwouldhinder阻碍oureffectivenessasapartnertoarelationshiptorelytooheavilyonwordsalone.Wordsareusedtodescribeonlyasmallpartofthemanyideasweassociatewithanygivenmessage.Sometimeswecangaininsightintosomeofthoseassociationsifwelistenformorethanwords. Wedon'talwayssaywhatwemeanormeanwhatwesay.Sometimesourwordsdon'tmeananythingexceptI'mlettingoffsomesteamsodon'ttakeitseriously.Idon'treallywantyoutopaycloseattentiontowhatI'msaying.JustpayattentiontowhatI'mfeeling.Mostlywemeanseveralthingsatonce.ApersonwantingtopurchaseahousesaystothecurrentownerThisstephastobefixedbeforeI'llbuy.TheownersaysIt'sbeenlikethatforyears.Actuallythestephasn'tbeenlikethatforyearsbuttheunspokenmessageis:Idon'twanttofixit.Weputupwithit.Whycan'tyouThesearchforamoreexpansiveviewofmeaningcanbedevelopedofexaminingamessageintermsofwhosaiditwhenitoccurredtherelatedconditionsorsituationandhowitwassaid. Whenamessageoccurscanalsorevealassociatedmeaning.Letusassumetwocouplesdoexactlythesameamountofkissingandarguing.Butonecouplealwayskissesafteranargumentandtheothercouplealwaysarguesafterakiss.Theorderingofthebehaviorsmaymeanagreatdealmorethanthefrequencyofthebehavior. Wewoulddowelltolistenforhowmessagesarepresented.ThewordsIfsurehasbeennicetohaveyouovercanbesaidwithemphasisandexcitementorritualistically例行公事地.Thephrasecanbesaidonceorrepeatedseveraltimes.Andthemeaningsweassociatewiththephrasewillchangeaccordingly.Sometimesifwesaysomethinginfrequentlyitassumesmoreimportance;sometimesthemorewesaysomethingthelessimportanceitassumes. 1Whatdoesthepassagemainlytellus A.Wordsprovidelistenerswiththemostimportantinformation. B.Listenerscangaininsightiftheylistenforwordscarefully. C.Thecomprehensionofamessageisinfluencedbyafewfactors. D.Whenmessagesarepresentedisofgreatimportance. 2WhatdoestheunderlinedsentenceI'mlettingoffsomesteaminPara.2probablymean A.I'mjustkidding. B.I'mjustcallingyourattention. C.I'msayingtheopposite. D.I'mgivingsomeimportantinformation. 3Whyshouldn'tpeoplerelytoomuchonwordsalone A.Wordsareusedtodescribeabigpartofthemanyideas. B.Wordsalwayssuccessfullyrepresentwhatwesay. C.Listenersmaynotdevelophealthyrelationships. D.Listenerswillfailtounderstandtheunspokenlanguage. 4HowdoestheauthordevelopPara.3 A.Byraisingquestions. B.Bylistingdata. C.Bygivingexamples. D.Byanalyzingcausesandeffects.
8分MarylandisexpectedtobecomethefirststateoftheUSAtobanfoam泡沫橡胶foodpackagingtakeoutcontainersandcups.Thenewproposedlawpassedbothofthestate'slegislativebodies立法机关thisweekwithenoughvotestooverrideapotentialrejectionsignedbyGov.LarryHoganwhohasnotpubliclysignaledwhetherhesupportedthelawornot.Thelawwouldbecomethelatestinagrowingeffortworldwidetobankindsofsingle﹣useplasticproductsduetotheirimpactsontheenvironment. WiththestatewidepreviousbaneffortMaryland'stwocountiesPrinceGeorgeandMontgomeryhadalreadybannedfoampackaging.Del.BrookeLiermanwhointroducedsimilarlegislationlastyearandin2017sayschangingpublicopinionhelpedherthirdattemptsucceed. Ithinkwehavereachedadangerpointshesays.Peopleareseeinghowcommonsingle﹣useplasticsareandthattheyarenotrecyclableandnevergoingaway.Peoplearebeginningtounderstandtheimportanceoflivingmoresustainably. Thenewlawwouldbanfoamfoodpackagingforproductspackagedin﹣stateincludingrestaurantscafesfoodtrucksandgrocerystores.Thefinalversionofthebillincludesexceptionssuchasmeat.ThebanwouldgointoforceonJuly12020andwouldcarryfinesof﹩250. ThelegislationwasopposedbytheMarylandRetailersAssociationwhichwarnedthatoutlawingfoampackagingcouldhurtsmallbusinessesbyhighercosts.Foampackagingremainspopularamongrestaurantsandthefoodindustrybecauseitislightweightinexpensiveandkeepsfoodanddrinkshot. Foamfoodcontainershavebeenbannedincitiesorcountiesin11statesincludingSeattlePortlandWashingtonD.C.SanFranciscoandnumerousothercitiesinCalifornia.AbaninNewYorkCitytookeffectatthebeginningofthisyearafteralonglegalbattleendedlastsummer. 1HowdidMarylandcarryoutthebanoffoamfoodpackaging A.Bypassinganewlaw. B.Byfiningfoampackagingusers. C.Byclosingsomelocalcompanies. D.Byteachingpeopletofocusontheenvironment. 2Whatdoestheunderlinedwordoverrideinparagraph1mean A.Explain. B.Prove. C.Reject. D.Tolerate. 3WhatisthekeytothethirdsuccessaccordingtoDel.BrookeLierman A.Learningfromothercities. B.Gettingmedium'ssupport. C.Changingpublicopinion. D.Hurtingsmallbusinesses. 4Whatcanwelearnfromthetext A.Foamfoodpackageswilldisappearintheworld. B.PeopleinMarylandsupportthelawabsolutely. C.Foamfoodpackageshaven'tanyadvantageatall. D.MeatwillbeallowedtobesoldinfoamfoodpackagesinAmerica.
已知5x-1的平方根是±34x+2y+1的立方根是1求4x-2y的平方根.
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25分假如你是一名高二的学生名叫李华.请你就本校食堂存在的问题向校长写一封投诉信.内容包括: 1.投诉的原因; 2.投诉的具体问题2﹣3点; 3.提出合理的建议. 注意:1.词数100左右;开头和结尾已经给出不计入字数; 2.可以适当增加细节以使行文连贯. DearHeadmaster I'mLiHuaaSenior2student. SincerelyYours LiHua
30分OnemonthagoSarahboughtalipstick口红shehaddesired.It'snot1butitmadeherhappybecauseitwastheonethatshehadbeen2sinceshesawit.Everymorningwhenshe3hermakeupeverythingseemsbrandnewduetothislipstick.Itfeelslikethatthewholedayisfullof4.Sarahhaslongbeenaccustomedto5herselfthroughshopping.Andthisdesireformaterialpossession6hertoworkhard.Shefeels7aboutthis.Her8keepsgettingbetterallbecauseofthiskindofdesire.Buthermotherthinksquite9.Severaldaysagowhenhermothercametoknowthe10ofthelipsticktheykept11foralmostawholeday.Hermotherthoughtthatitwas12wrongtospendsomuchonsuchmeaninglessitemswhileSarahthoughthermotherwastotally13aboutit.WhatSarahdidn'tknowwasthathermotherhadoncebeenalittlegirlwhohad14inpovertyandstarvation.Thatlittlegirlcouldnotfindenoughclothesto15inwinter.Thatgirlneededtolearnhowtospendeverypenny16itweretwoinordertosurvive.It'sjust17thattwopeoplecan'tunderstandeachotherevenformotheranddaughterbecauseeverybody's18isdifferent.Trytobepatientwiththepeoplearoundyou.Trytogetto19them.Trytostandintheirshoes.Ifyoucannotlistentopeoplehowcanyou20themtolistentoyou1A.dear B.cheap C.famous D.handy2A.longingfor B.headingfor C.leavingfor D.payingfor3A.putsoff B.putsaway C.putson D.putsback4A.anxiety B.hate C.laughter D.hope5A.rewarding B.devoting C.adapting D.forgiving6A.warns B.persuades C.begs D.drives7A.cautious B.good C.stressed D.negative8A.career B.relationship C.life D.study9A.firmly B.differently C.logically D.obviously10A.quality B.brand C.material D.price11A.waiting B.quarreling C.shopping D.gossiping12A.probably B.approximately C.slightly D.completely13A.unreasonable B.uncomfortable C.enthusiastic D.curious14A.turnedup B.brokenup C.grownup D.keptup15A.wear B.sell C.exchange D.clean16A.eventhough B.incase C.asif D.sothat17A.unlikely B.necessary C.strange D.natural18A.experience B.knowledge C.character D.family19A.move B.forgive C.know D.copy20A.force B.expect C.order D.advise
10分Itisimportanttoteachyourdogtoguardyouandtheothermembersofyourfamilytofightagainstdanger.Herearesometipsonhowtotrainyourdogtoprotectyou. 1. Itisveryimportanttointroduceyourdogtootherpeopleandletitinteractwiththem.Agoodguarddogisfriendlytothepeoplearoundit.Thisexerciseisveryimportantbecauseitwillhelpthedogdistinguishbetweengoodpeopleandbadpeople.2. Usepropercommands Adogactsaccordingtohowithasbeentrained.Theonlywaytodothisisthroughcom﹣mandsandyourownbodyactionsandsounds.CommandthedogtoattackbysayingthewordAttackloudly.SoonwheneveryouusethecommandAttack!yourdogwillunderstandthatitneedstofightthethingyouarepointingat.3youmustalsotrainittostoptheattack. Teachnightguarding Teachyourdogtokeepacheckonthehousebytakingitaroundthehouseandmakingitsniffthearea.Youwillneedtodothisacoupleoftimessothatthedogunderstandsthatitneedstokeepacheckeverynight.4.Itwillcheckthehouseandreturnbackindoors. Rewarditforitsgoodbehavior GivingrewardssuchasapatahugverbalpraiseGooddog!ortreatsisanexcellentwayoflettingthedogknowthatyouarehappywithitsbehavior.5itisyourdutytomakesureyourdogisrewardedforitsgoodbehaviorandpunishedforitsbadbehavior.PunishmentinvolvesscoldingthedogbyusingthecommandBaddog!orNoverybad!Thiswillhelpthedoglearnthatitmustn'tdocertainthings. A.Sinceyouarethemaster B.Encouragecommunication C.Whileyouaretrainingthedogtoattack D.Trainanolderdogtoprotectitsmaster E.Afterafewdaysthedogwillbegintocheckonitsown F.Peoplewhoaregoodwillbethosewhoareallowedtocomeclosetoit G.Ifyourdogdoesnotcomeinsideyouwillneedtocommandittogetback
10分假定英语课上老师要求同桌之间交换修改作文请你修改你同桌写的以下作文.文中共有10处语言错误每句中最多有两处.每处错误仅涉及一个单词的增加删除或修改. 增加:在缺词处加一个漏字符号∧并在其下面写出该加的词. 删除:把多余的词用斜线\划掉. 修改:在错的词下划一横线并在该词下面写出修改后的词. 注意: 1.每处错误及其修改均仅限一词; 2.只允许修改10处多者从第11处起不计分. I'vehadmanydreamssinceIwasachild.Nowmydreamistoopensacafe.Thoughitmayappearsimpleitrequiredalotofideasandefforts.WhatIwantisnotjustanordinarilycafebutaveryspecialone.IwantmycafehaveaspecialthemesuchaslikeTangDynasty.Inthecafecustomerswillenjoyyourselvesinthehistoricalenvironmentwhatiscreatedforthem.IfIsucceedinmanageoneIwillopenmore.Iwishtohaveachainofcafesinmanydifferentcity.Eachofmycafeswillhaveadifferentthemeandanuniquestyle.
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