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已知椭圆方程为，且a，b，a+b成等差数列，a，b，ab成等比数列，则此椭圆的离心率为（ ）
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高三下学期数学《》真题及答案
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已知mnm+n成等差数列mnmn成等比数列则椭圆_______
在△ABC中abc分别为角
，
，
的对边，且cos2B＋cosB＋cos(A－C.)＝1，则 A.a，b，c成等差数列B.a，b，c成等比数列 C.a，c，b成等差数列
a，c，b成等比数列
在△ABC中若abc分别为角
，
，
的对边，且cos2B+cosB+cos（A.－C.）＝1，则有 A.a、c、b成等比数列B.a、c、b成等差数列 C.a、b、c成等差数列
a、b、c成等比数列
已知椭圆方程为且aba+b成等差数列abab成等比数列则此椭圆的离心率为
已知△ABC的三个内角ABC成等差数列且AB=2AC=3则cosC=．
已知数列是一个公差不为0等差数列且a2=2并且成等比数列则=________.
已知－1a1a28成等差数列－1b1b2b3－4成等比数列那么的值为
－5
5或-5
－
抛物线上有三点是它的焦点若成等差数列则
成等差数列
成等差数列
成等差数列
成等差数列
已知椭圆长轴长短轴长和焦距成等差数列则该椭圆的离心率是.
不相等的三个正数abc成等差数列并且x是ab的等比中项y是bc的等比中项则x2b2y2三数
成等比数列而非等差数列
成等差数列而非等比数列
既成等差数列又成等比数列
既非等差数列又非等比数列
若互不相等的实数abc成等差数列caabbc成等比数列且
－8
4
－4
8
已知aba+b成等差数列abab成等比数列且0
已知aba+b成等差数列abab成等比数列且0
m>1
1
m>8
0
8
已知△ABC的三个内角A.B.C.成等差数列且AB＝1BC＝4则边BC上的中线AD的长为.
在△ABC中已知AB边上的中线CM＝1且成等差数列则AB的长为．
已知数列是一个公差不为0等差数列且a2=2并且成等比数列则=________
已知aba+b成等差数列abab成等比数列且0
已知△ABC的三个内角ABC成等差数列且AB=1BC=4则边BC上的中线AD的长为．
抛物线三点F.是它的焦点若成等差数列则
成等差数列
成等差数列
成等差数列
成等差数列
已知△ABC的三个内角A.B.C.成等差数列且AB＝1BC＝4则边BC上的中线AD的长为______
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WhenEdisonwassevenEdison'sfamilymovedfromOhiotoMichiganafterhisfathergotajobthere.Becauseofhearingproblemshehaddifficulty1followthelessonsandoftenranawayfromschool.Howeverhe2usethetimetoreadbooksandsetupalaboratoryinhishome.Butthesmellfromhislaboratorywasoftensostrong3hismotherhadtostophimfrom4carryoutanymoreexperimentsathome. Attheageof16EdisongotajobontheGrandTrunkRailway.Therehemadeuseofausedcar5hislaboratory.Duringthattimehe6successdevelopedsomethingthatcouldsendmessages.By1869Edison'sinventionsintelegraphywerewidelyaccepted7madehimdecidetoleavethejobandbecomeafulltime8invent.Edison'smostwellknowninventionsincludedtheelectriclightbulbmicrophonesandsoon. Edisondiedat9ageof84onOctober181931.AtthetimeofhisdeathhewasstilldoingexperimentsinhislaboratoryinWestOrangeNewJersey.Heclearlyenjoyedhisworkandlivedlifetothe10full.
阅读下面短文根据所给情节进行续写使之构成一个完整的故事.OncewhenIwasateenagermyfatherandIwerestandinginlinetobuyticketsforthecircus.Finallytherewasonlyonefamilybetweenusandtheticketcounter.Thisfamilymadeabigimpressiononme.Therewereeightchildrenallprobablyundertheageoftwelve.Youcouldtelltheydidn'thavealotofmoney.Theirclotheswerenotexpensivebuttheywereclean.Thechildrenwerewell﹣behavedallofthemstandinginlinetwo﹣by﹣twobehindtheirparentsholdinghands.Theywereexcitedlytalkingabouttheclownselephantsandotheractstheywouldseethatnightwiththeirbrothersorsistersinalowvoice.Onecouldsensetheyhadneverbeentothecircusbefore.Itpromisedtobeahighlightoftheiryounglives.Thefatherandmotherwereattheheadofthelinestandingproudastheycouldbe.Themotherwasholdingherhusband'shandlookingupathimasiftosay'Youaremyknightinshiningarmor.'Hewassmilingandrespondinginpridelookingbackatherasiftosay'Yougotthatright'.Theticketladyaskedthefatherhowmanyticketshewanted.Heproudlyresponded'Pleaseletmebuyeightchildren'sticketsandtwoadultticketssoIcantakemyfamilytothecircus.'Theticketladygavetheprice.Theman'swifeletgoofhishandloweredherheadandherlipsbegantoshake.Thefatherleanedalittlecloserandasked'Howmuchdidyousay?'Theticketladytoldhimthepriceagain.Themanobviouslydidn'thaveenoughmoney.Howwashesupposedtoturnandtellhiseightchildrenthathedidn'thaveenoughmoneytotakethemtothecircus?ActuallywewerenotwealthyinonesensesoIunderstoodhowthekidswouldfeel.Ifeltsorryforthem.注意1.所续写短文的词数应为150左右2.至少使用5个短文中标有下划线的关键词语3.续写部分分为两段每段的开头语已为你写好4.续写完成后请用下划线标出你所使用的关键词语.Paragraph1Seeingwhatwasgoingonmydadseemedtohaveanidea.Paragraph2ThenmyfatherandIwentbackhome.
Amotherisapersonwhoseeingthereareonlyfourpiecesofpieforfivepeoplepromptlyannouncessheneverdidcareforpie.﹣TennevaJordanIknewIwasnotsupposedtobequitesoexcited.Iwastoooldforthat.Atageeleventheoldestandmymom's'grownup'girlIhadtokeepmycool.Iwasinmiddleschoolafterall.ButeverychanceIgotwhenIwasaloneIcheckedeachpresentunderthetree.Ireadeverytagandfelteverypackageguessingatthecontentswithin.IhadexaminedeachgiftsooftenthatIcouldtellwhichpresentwenttowhichpersonwithoutevenlookingatthetags.Ithadbeenatoughyearformyfamily.Whenevermymomlookedoveratthetreeandscattered撒presentsshewouldsighandwarnus'Therewon'tbeasmuchforChristmasthisyear.Trynottobedisappointed.'Christmashadtraditionallybeenatimeformyparentstospoilus.Inyearspastthepresentswouldpileupandspilloutfromunderthetreetakingoverthelivingroom.Ihadheardthephrase'givingisbetterthanreceiving'butthoughtthatwhoeverhadsaidthatmusthavebeenoutoftheirmind.Gettingpresentswasthewholepoint!ItwasthereasonIcouldn'tgettosleeponChristmasEve.OnChristmasmorningweeagerlywaitedinthehallwayuntilDadtolduseverythingwasready.Werushedintothelivingroomandletthewrappingpaperfly.Wemadeweakattemptstowaitandwatchwhileotherfamilymembersopenedtheirpresentsbutasthetimepassedwelostourself﹣control.'Here'sanotheroneforyou'saidMomasshehandedmeapackage.Ilookedatitconfused.HavingspentsomuchtimeexaminingthepresentsbeforeChristmas.Irecognizedthisone.Butithadnotbeenmine.Itwasmymom's.Anewlabelhadbeenputonitwithmynamewritteninmymother'shandwriting.'MomIcan't'注意:1.所续写短文的词数应为150左右;2.至少使用5个短文中标有下划线的关键词语;3.续写部分分为两段每段的开头语已为你写好;4.续写完成后请用下划线标出你所使用的关键词语.Paragraph1:Iwasstoppedbymymother'seagerjoyfullook.Paragraph2:IhavealwaysrememberedthatChristmasfondly.
Peopletodaytakelotsofphotographs.Somephotographsarereally1memory.Theyeithercaptureimportanteventsshowbeautifulplaces.Yearslaterpeoplemaylookatthesespecial2phototorememberthepast. Howeverhowdidpeoplerecordimportantmomentswithoutcameraslongago?Somepeopletoldstoriesaboutoldtimesandotherswrotedown3theyremembered.Therewerealsoalotofpeople4makespecialdrawingstohelpthemrecallimportantmoments.AmongthosepeoplewereNativeAmericansoftheLakotatribe. EveryyearLakotaleadersdecidedwhicheventwasmostimportant.ALakotaartistwasthenasked＝5drawaspecialpictureofthatevent6eachyear'spicturewasdecidedonduringthewinterthedrawingsbecameknownaswintercounts. Foralongtimewintercountsweredrawn7animalskins.Laterthedrawings8doonpaper.Thepicturestoldthehistoryofthetribe.EachyearthenewestwintercountwasaddedtotheLakotacollectionofpicturesfromearliertimes9helpedpeoplekeeptrackoftheyears.TodaywintercountsareimportantrecordsofLakota'spast.
At23mycareergotgoing.Iwasmidwaythroughamaster'sdegreeatTheLondonSchoolofEconomicsandPoliticalScienceandhadbeenhiredasapart﹣timereporterforafinancewebsite.Igotagreatone﹣monthreviewandmybossaskedifIwasinterestedinstayingwiththecompanyaftergraduation. Howeverbalancinggraduatestudieswithworkwaschallenging.TodealwithitIcheckedmyrealselfatmyofficedoor.IcameintoworkgreetedmycolleaguesandlistenedmorethanIcontributedineachmorningmeeting.ThesmallteamIworkedwithoftenseemedbusysoratherthangivingideasthatmightgetturneddownIstayedback. Afterfourmonthsmybosscalledmeintohisoffice.ThemeetingwasgoingwelluntilhetoldmethatdespitethegreatworkIhadproducedtheteamhadheldameetinganddecidedWedon'tthinkit'stherightfit. Imusthavelookedconfused.You'reambitiousintelligentandwillbeverysuccessfulmybosssaid.Butyouhaven'tmadeenoughofanefforttojointheteam.Youlosttheenthusiasmyoushowedinyourinterview.Thatwon'tworklongterm.Icouldn'tbelievethatperformingwellatmyjobwasn'tenoughtokeepit.ButIknewmybosswasright. Don'tleavebeforeyouleave.Becauseweworksohardforsuccesswedon'tliketothinkthatwehurtourselvessometimes.Buteachofusmustchangewhennecessary.IntryingtoearnafulltimejobIleanedbackinordernottoshowtoomuchofmyselformylackofexpertise.Ilearnedthehardwayisn'tthewaytoachieveyourgoals. 1Whydidtheauthorwritethisarticle? A.Toamusethereaders. B.Tointroduceherwisdom. C.Toshareherworkexperience. D.Tolandafull﹣timejob. 2WhatdidtheauthormeanbysayingIstayedbackinParagraph2? A.Shewasnolongerinterestedinthepart﹣timejob. B.Shewasafraidtogiveherownideasinherteam. C.Shewasactiveinexpressingherselfinherteam. D.Shehadnoideastocontributeinherteam. 3Whydidherbosscallherintohisofficeonedayfourmonthslater? A.Shedidn'tproducethegreatwork. B.Shecaredlittleaboutothermembersinherteam. C.Shewasconcernedonlyaboutherownsuccess. D.Shedidn'tshowenoughenthusiasminteamwork. 4Whatconclusionmighttheauthordrawfromherworkexperience? A.Notsharingenoughduringmeetingscouldleadtobeingfiredfromyourjob. B.Listeningismoreimportantthancontributingineachmorningmeeting. C.Gettingalongwellwiththeotherteammemberscouldhelpyoukeeptoyourjob. D.Youmustworksohardforyoursuccessthatyoudon'twanttohurtyourself.
FewpeopleIknowseemtohavemuchdesireortimetocook.MakingChinese1dish isseenasespeciallytroublesome.Manywesterners2cometoChinacookmuchlessthanintheirowncountriesoncetheyrealizehowcheap3canbetoeatout.Istillremember4visitafriendwho'dlivedhereforfiveyearsandI5shockwhenIlearntshehadn'tcookedonceinallthattime. Whileregularlyeatingoutseemsto6becomecommonformanyyoungpeopleinrecentyearsit'snotwithoutacost.Theobviousoneismoney;eatingoutonceortwiceaweekmaybe7affordbutdoingthismostdaysaddsup.Therecouldbeaneven8highcostonvourhealth.Researchershavefoundthatthereisadirectlinkbetweentheincreaseinfoodeatenoutsidethehomeandtherisein9weighproblems. IfyouarenotgoingtosufferthisproblemthenIsuggestthatthenexttimeyougotoyourmums'home10dinnergetafewcookingtipsfromher.Cookingfoodcanbefun.Youmightalsobegintonoticetheeffectsnotonlyonyourhealthbutinyourpocket.
Agodhadahorse.Thehorsewasbeautifulandalsoithadmanygoodqualities.1Itespeciallywantedtobecomethemostbeautifulhorseintheworld. Onedaythehorsesaidtothegodyouhavegivenmebeauty.Youhavegivenmeothergoodqualities.2ButhowIwishyoucouldmakememorebeautiful!Iwouldbeextremelyextremelygratefulifyoucouldmakememorebeautiful. ThegodsaidIammorethanreadytomakeyoumorebeautiful.3ThenthehorsesaidMyneckistooshort.Ifyoucanmakemyneckalittlelongermyupperbodywillbemorebeautiful.AndifyoucanmakemylegsmuchlongerandthinnerthenIwilllookmorebeautifulinmylowerbody. Thenimmediatelythegodmadeacamelappearinplaceofthehorse.ThehorsewassosadthatitstartedtocryOhnoIdonotwanttobecomeacamel.4Asahorseeverybodyappreciatedmygoodqualities.Nobodywillappreciatemeasacamel. Thegodsaidthisisexactlywhatyouaskedfor.Youhavebecomeacamel.5Ifyoucryforalongerneckandlegsthisiswhatwillhappen.Eachthinginmycreationhasitsowngoodqualities.Thecamelisnotasbeautifulasyouarebutitcarriesheavyloadsandhasagreatersenseofduty. A.Iamsogratefultoyou. B.whynotremainahorse? C.IwishyoutoChangemeintoahorseagain. D.Tellmeinwhatwayyouwanttobechanged. E.Butitwantedtobemoreperfectineveryway. F.NevertrytoreceivemorethanIhavegivenyou. G.Iamgladtoknowthatyoufeelgoodwithyourselfnow.
Emptynestsyndrome综合症isaphenomenoninwhichparentsexperiencefeelingsofsadnessandlosswhenthelastchildleaveshomeforthefirsttimesuchastoliveontheirownortoattendacollegeoruniversity.Youmightfinditdifficulttosuddenlyhavenochildrenathomewhoneedyourcare.1Ifyouhaveonlyonechildyoumighthaveaparticularlydifficulttimeadjustingtoanemptynest. 2Inthepastresearchsuggestedthatparentsdealingwithemptynestsyndromeexperiencedasenseoflossthatmightmakethemeasytoexperiencedepressionworrystressandanxietyoverthechild'swelfarealcoholismandidentitycrisis.3Whenthelastchildleaveshomeparentshaveanewopportunitytoimprovethequalityoftheirmarriageandrestartinterestsforwhichtheypreviouslymightnothavehadtime. Ifyou'reexperiencingfeelingsoflossduetoemptynestsyndrometakeaction.4Thismightbeanopportunetimetoexploreorreturntohobbiesleisureactivitiesorcareerpursuits. Manysuggestpreparingforanemptynestwhileyourchildrenarestilllivingwithyou.5Theymayincludefamilyvacationslongtalksandtakingtimeofffromworktomakespecialmemories.Also.makespecificplansfortheextramoneytimeandspacethatwillbecomeavailablewhenchildrenarenolongerlivingathome. Howeverpreventionisalwaysbetterthancure.Ifonechildhasmovedoutandyoustillhaveotherslivingathomewithyouplaninadvanceforthedaywhenyournestwillbeemptyofallchildren. A.What'stheimpactofemptynestsyndrome? B.Youmightalsoworryaboutyourchildren'ssafety C.Whatcanparentsdotodealwithemptynestsyndrome? D.Makeplanswiththefamilywhileeveryoneisstillunderthesameroof. E.Socialsupportcanbeincrediblyhelpfulduringtimesofstressandloneliness F.Forexampletimeandenergythatyoudirectedtowardsyourchildcannowbespentondifferentareasofyourlife. G.Howeverrecentstudiessuggestthatanemptynestmightreduceworkandfamilyconflictsandprovideparentswithmanyotherbenefits
Aswellascontributingtoweightgainanewstudyhassuggestedthatsnackinglateatnightcouldincreaseyourriskofdiabetesandheartdisease.ResearchersfromthePerelmanSchoolofMedicineattheUniversityofPennsylvaniafoundthateatinglateatnightraisesglucose葡萄糖andinsulin胰岛素levelsbothofwhicharecausesoftype2diabetes.Theyalsofoundevidencethatpoortimingofmealscanalsoincreasetheriskofaheartattack.Thisisn'tthefirsttimeastudyhassuggestedthatlatenightsnackingcouldbedetrimentaltoyourhealth.1 Itcanaffectyourmemory.2ThestudyfromtheUniversityofCaliforniafoundthateatingatirregularhourssuchaslateatnighthadthepotentialtoimpactcognitivefunctions. Itmakesyouhaveweirddreams:In2015apairofCanadianpsychologistsinvestigatedwhetherpeople'seatinghabitscanhaveanegativeeffectonsleeppatternsanddreaming.3Afteraperiodtheyfoundthat18percentbelievedfoodhastheabilitytorendertheirdreamsmorebizarreordisturbing. 4Expertshavefoundthateatingdinnerafter7pmcouldincreasetheriskofsufferinghighbloodpressure.ResearchersfromDokuzEylülUniversityassessedmorethan700adultswithhighbloodpressure.Theyfoundthateatingdinnerlateatnighthadthemostsignificantimpactonovernightbloodpressurewhileeatingwithtwohoursofgoingtosleepdidmoredamagethanindulginginahighsaltcontentdiet. Itmakesyouhungrierthenextday.5Whenyouwakeupthenextmorningyourpancreasreleasestheinsulinafterameal.Thisisinturnproducesmoreglucosewhichcausesahormonecalledghrelin饥饿素responsiblefortriggeringhunger. A.Itincreasestheriskofhighbloodpressure. B.Yourstomachneedsafewhourstoemptyafterameal. C.Eatinglateatnightcanhaveyoufeelinghungrierthanusual D.Eatingwithtwohoursofgoingtosleepdidmoredamage. E.Hereweroundup4reasonswhyyoushouldavoideatinglateatnight. F.Theyasked400universitystudentsaboutthedietsleepanddreamexperiences. G.AccordingtoAmericanresearcherssnackinglateatnightcouldnegativelyaffectyourmemory.
PacificScienceCenterGuide ◆VisitPacificScienceCenter'sStore Don'tforgettostopbyPacificScienceCenter'sStorewhileyouareheretopickupawonderfulscienceactivityorrememberyourvisit.Thestoreislocated位于upstairsinBuilding3rightnexttotheLaserDome. ◆Hungry Ourexhibitswillfeedyourmindbutwhataboutyourbody?Ourcaféoffersacompletemenuoflunchandsnackoptionsinadditiontoseasonalspecials.ThecaféislocatedupstairsinBuilding1andisopendailyuntilonehourPacificScienceCentercloses. ◆RentalInformation Lockersareavailabletostoreanybelongsduringyourvisit.ThelockersarelocatedinBuilding1neartheInformationDeskandinBuilding3.PushchairsandwheelchairsareavailabletorentattheInformationDeskandDennyWayentrance.IDrequired. ◆SupportPacificScienceCenter Since1962PacificScienceCenterhasbeeninspiringapassion热情fordiscoveryandlifelong@insciencemathandtechnology.TodayPacificScienceCenterservesmorethan1.3millionpeopleayearandbeingsinquirybasedscienceeducationtoclassroomsandcompanyeventsalloverWashingtonState.It'sanamazingaccomplishmentandoneweconnectsciencewithoutgeneroussupportfromindividualscorporationsandothersocialorganizations.Wishpacificorganzier.orgtofindvariouswaysyoucansupportPacificScienceCenter. 1WherecanyoubuyasouveniratPacificScienceCenter? A.InBuilding1. B.InBuilding3. C.AtthelastDenny. D.AttheDennyWayentrance. 2WhatdoesPacificScienceCenterdoforschools? A.Trainscienceteachers. B.Distributesciencebooks. C.Inspirescientificresearch. D.Takesciencetotheclassroom. 3Whatisthepurposeofthelastpartofthetext? A.Toencouragedonations. B.Toadvertisecomingevents. C.Tointroducespecialexhibits. D.TotellabouttheCenter'shistory.
Afoodchainisasimplewayofexplaininghoweachlivingthinggetsitsfood.ForexampleasimpleAfricanfoodchainmightconsistofthreeparts:firsttreesandbushes;secondgiraffes;andthirdlions.Eachlinkinafoodchainisfoodforthenextlink.Foodchainsalwaysstartwithplantsandendwithanimals. Plantsareatthebottomofthefoodchain.Scientistscallthemproducersbecausetheyuselightenergyfromthesuntoproducefoodfromcarbondioxideandwaterthroughphotosynthesis光合作用.Animalsunlikeplantscan'tproducetheirownfood.Insteadtheymusteatplantsorotheranimals.Thisiswhyscientistscallthemconsumers. Consumeranimalsfallintothreecategories.Herbivoreseatonlyplants.Carnivoreseatonlyotheranimals.Omnivoreseatbothplantsandanimals.Inadditiontoproducersandconsumerstherearealsodecomposers分解者.Theseorganismssuchasbacteriaandfungifeedondecayingmatter.Theyhelpthefoodchainbyspeedingupthedecayingprocessthatreleasesmineralsbackintothesoiltobeabsorbedbyplantsasnutrients. Mostfoodchainshaveonlyfourorfivelinksinthem.Asyougoupafoodchaintheamountofenergyateachleveldiminishesbecausesomeoftheenergyislostintheformofwasteorisusedupbytheorganismatthelevel.Thatiswhyittakesmanyplantsforexampletofeedafewgiraffeswhointurnfeedonelion. Mostanimalsarepartofmanydifferentfoodchainsbecausetheymusteatmorethanonetypeoffoodtosatisfytheirenergyneeds.Alloftheseinterconnectedfoodchainsformamorecomplexstructurecalledafoodweb.Humansforexampleareatthecenterofaverycomplexfoodwebbecausewetendtoeatmanydifferenttypesofplantsandanimals. 1WhichofthefollowingtellsusabouttheAfricanfoodchain? A.Treesgiraffesandlionsliveononeanother. B.Giraffeseatlionsandlionsfeedonbushes. C.Lionsliveongiraffesandgiraffeseattrees. D.Bushesliveonlionsandlionseatgiraffes. 2TheunderlinedworddiminishesinParagraph4probablymeans. A.changes B.decreases C.disappears D.increases 3Thosethatmaylieinthecenterofthefoodchainare. A.omnivores B.decomposers C.herbivores D.carnivores
阅读下面短文根据所给情节进行续写使之构成一个完整的故事.Iwasdoingabigclean﹣uprecentlyandmykidswerehelpingwhenmysonFreddocameacrossaknottedhandkerchiefwithanolddarkbrowncoininside.'MumcanIhavethis?CanIplaywiththiscoin'heasked.Itookonelookandwasimmediatelytransportedtoanothertime.In1991therewasatimewhenmyfriendandIworkedinabackwardAfricancountryNigerhitbysandstormsandburningheat.ThereweremanythingsIfounddifficultaboutthisplace﹣﹣theclimateandbeggarsweremybiggestheadaches.SoafterfinishingfivemonthsofnursingworktherewemovedontoworkatahealthclinicinneighbouringcountryBurkinaFaso.'It'smuchgreenerinBurkina.EventheCoketastesbetter'thelocalsassuredus.Yetthefactwasquitetheopposite.ArrivingbytaxiatourdestinationinBurkinawebegantounload.Iwasreachingformylargerpieceofluggagewhenoutofthedarknessamotorbikewithtwomenapproachedslowly.Withoutwarningoneofthemengrabbedmydaypackasthemotorbikesweptcloseby.Withinsecondsthepairwereoutofsightswallowedupbythenight.Withmypassportmoneytraveller'schequesallinthebagIwasindeeptrouble.Howfrustrating!AllIwantedwastoleavethishellhole!ThenwalkingthroughBurkina'sstreetsonedayIwasstoppedbyanoldwomanwhothrustherhandinmyface.'Cadeau'gift'inFrench!Cadeau!'shecried.I'dhadenough!Iwasextremelytiredofthecountryitspovertyitsthievestheheatthedustandeverything!ItoldherangrilyandfirmlyinFrench'Ihaveno'Cadeau'.Ihavenomoney.AthiefstoleallmymoneytwoweeksagoandnowIcan'tgetoutofyourcountry.Icannotgiveyouanything.NOTHING!'Thebeggarwomanlistenedattentively.Tomygreatsurpriseafterhearingmywordsshegaveabroadsmile.注意1.所续写的短文的词数应为150词左右2.应使用5个以上短文中标有下划线的关键词语3.续写部分分为两段每段的开头语已为你写好4.续写完成后请用下划线标出你所使用的关键词语.Shereachedintothepocketofherdress.TherewasaslighttouchonmyhandlookingdownIsawmysonlookingatmecurious.
阅读下面短文根据其内容写一篇60词左右的内容概要.ScientistsinLondonsaytheyhavefoundthebestdietforbothhumansandtheplanet.Iftheworldfollowedtheso﹣called'planetaryhealth'dietthescientiststoldReutersthateachyearmorethan11millionearlydeathscouldbeprevented.Scientistssaythatthewayweproduceandeatfoodisverybadfortheplanet.Forthehealthoftheplanettheyclaimthesamedietwouldreducegreenhousegasesandsavemorelandwaterandanimals.TimLangaprofessoratBritain'sUniversityofLondonco﹣ledtheresearch.HetoldReuters'Thefoodweeatandhowweproduceitdeterminesthehealthofpeopleandtheplanetandwearecurrentlygettingthisseriouslywrong.'Langaddedthattheworld'spopulationisexpectedtogrowto10billionpeopleby2050.Ifwewanttofeedeveryoneheexplainedweallneedtochangewhatweeatandthewayweeatby'improvingfoodproductionandreducingfoodwaste.'Wellwhatdoyoueatontheplanetaryhealthdiet?Thescientistswhocreatedthisdietsayitislargelyplant﹣basedbutstillhassmallamountsofdairyfishandmeat.Thedietcallsforcuttingredmeatandsugarby50percentanddoublingtheamountofnutsfruitsvegetablesandlegumes.Foodsituationsaroundtheworldarenotequal.Incertainareasthiswouldmeangreatchanges.PeopleinNorthAmericaforexampleeat6.5timestherecommendedamountofredmeat.OntheotherhandpeopleinSouthAsiaeatonlyhalftheamountsuggestedbythenewplanetaryhealthdiet.Meetingthetargetsforvegetableswouldneedbigchangesinotherareas.Insub﹣SaharanAfricapeopleonaverageeat7.5timesthesuggestedamountofvegetableslikepotatoesandcassava.Thescientistsadmittheirgoalwillbedifficulttoachieve.Butforthemdoingnothingisalsonotanoption.Willetsaid'Ifwecan'tquitemakeitit'sbettertotryandgetascloseaswecan.
阅读下面短文根据其内容写一篇60词左右的内容概要.You'resittingonthetrainhomeandthepersonoppositeyouyawns打哈欠.Suddenlyyou'reyawningwithhimthoughyou'renottired.Thisphenomenonconfusedscientistsforyearsuntilarecentstudyfoundthatpeopletendtosympathize同情withfellowhumans.Supportingthisclaimwasthediscoverythatthosechildrenwhowereunabletoformnormalemotionaltieswithothersdidnotexperiencecontagious有传染性的yawningwhichshowedthathumanscommunicateregularlywithoutwords.HugoD.Critchleyaneuroscientisthasconductedanexperimentrecentlywhichwillprovethathappinessandsadnesscanspreadlikethecommoncold.AccordingtoCritchleyourmindandbodyareinconstantexchangeabouthowwe'refeeling.'Emotionsarecloselylinkedwithstatesofinternal体内的responses'heexplained.'Therearealsomorevisiblechangesinourgesturesandfacialexpressions.Whenwe'reinagroupthesesignalscanspreadtoanotherperson.Forexamplethere'stheobvioustendencytosmilewhensmiledatandtherearelessobviouschangesthatreflectemotionsofsurpriseangerorsadnesssuchasachangeinourheartrateandbloodpressure.'HugoD.Critchleyfurtherexplained'Ourbodiessynchronize同步andwhenweliketheotherpersonweevercopyhisbehaviour.Nexttimeyouchatwithafriendtakenoteofhowyou'resitting﹣it'sprettylikelythatyouwillbethesame.Scientistsbelieveit'sourwayoftellingeachotherthatwe'repartners.Throughbodylanguagehumansgiveeachotherverysubtlebutclearsignalsthatshowemotions.'Sowhatlessonscanwelearnfromthis?'Spendtimewithhappypeople﹣otherwiseyourhealthcouldsuffer'saidCritchley.'Whenwe'resadourbodygoesintofightorflightmode.Butwhenwe'rehappyourbodyworksnormallyandwefeelrelaxedandpositive.Sowelookbrightourskinglowswefeelhealthyanditaffectseveryonearoundus.'
阅读下面短文根据所给情节进行续写使之构成一个完整的故事. RobertandHenryweretwofriendsinthesameclass.Theyalwaysplayedtogetherandwenthometogether.OnedayRobertandHenryweregoinghomefromschoolwhenonturningacornerRobertcriedoutAfight!Let'sgoandsee! NosaidHenry.Letusgoquietlyhomeandnotmeddlewith插手thisquarrel.Wehavenothingtodowithitandmaygetintomischieftrouble.AlsoourparentsareexpectingtohavedinnerwithustogetherathomeandIdon'twantthemtoworryaboutme. YouareacowardandafraidtogosaidRobertandoffheran.Henrywentstraighthomeandintheafternoonwenttoschoolasusual. ButRoberthadtoldalltheboysthatHenrywasacowardandtheylaughedathimagreatdeal.FromthenontheylookeddownuponHenryanddidn'twanttoplaywithhimtogether. Henrywassadbuthewasn'tangrywithRobertforhisrudebehaviorbecausehelearnedthattruecourageisshownmostinbearingmisunderstandingwhenitwasnotdeservedandthatheoughttobeafraidofnothingbutdoingwrong.Thushejustignoredtheotherboys'laughterandcontinuedtogotoschoolandstudyaswell.HoweverRobertdidn'tinviteHenrytogohomewithhimanymore.InsteadhehadsomeotherboyswhoalsothoughtHenrywasacoward.Everydayafterschooltheydidn'tgohomedirectlybutwenttotheriverorsomewheretoplaygamesandhadalotoffun. AfewdayslaterRobertwasbathingwithhisnewfriendsinariverandgotoutofhisdepth.Hestruggledandscreamedforhelpbutallinvain.TheboyswhohadcalledHenryacowardgotoutofthewaterasfastastheycouldbuttheydidnoteventrytohelphim. 注意: 1.所续写短文的词数应为150左右; 2.应使用5个以上短文中标有下划线的关键词语; 3.续写部分分为两段每段的开头语已为你写好; 4.续写完成后请用下划线标出你所使用的关键词语. Paragraph1: Robertwasfastsinking. Paragraph2: ThusRobert'slifewassaved.
SoonafterIgotofftheship1fillwithtradesmenfromsmallboatsIwasstoppedbyamansellingdiamondrings.Ireallyspentsometime2getridofhim.Thenanotherman3approachmewithsomeexpensivewatchesandpens4arousedmyinterest. CanIhavealookatthepens?Iaskedthemanwhoimmediatelyhanded5tomeandsaidit'sapenofhighqualitysir.It's6￡50butyoucanhaveitfor￡30asaspecialfavor.YetIstillthoughtitwastooexpensivesobetweenustherewasan7argueabouttheprice.FinallyIgotthepenfor￡5.Whatabargain!Onlyonetenthoftheoriginalprice!Iwaswild8joywithoutnoticingthesellerdisappearintothecrowdquickly.ThenIwentbacktotheship9extremepleased.ButthisstorydidnothaveahappyendingIcouldn'tfillthepenwithinkanditjustdidn'twork!Evenfivepounds10betoomuch!TherewasnodoubtthatIhadbeenfooledbytheseller.Nowonderhehadbeeninsuchahurrytogetaway!
阅读下面短文根据其内容写一篇60词左右的内容概要.WhentalkingaboutthetwosexespeopleoftensaythatmenarefromMarsandwomenarefromVenus.Withoutdoubtmenandwomenhavegreatdifferencesinmanyways.Thesecontrasts差别incharactercouldallbedowntosupposeddifferencesbetweenthemaleandfemalebrains.ForexampleastudyledbyBritishpsychologistStuartRitchiein2012foundthatmen'sbrainsareonaverage10percentbiggerthanwomen's.AndanotherstudyledbyIsraelipsychologistDaphnaJoelatTelAvivUniversityin2015furtherclaimthatdifferencesexistinmaleandfemalebrainsalthougheachindividualsbrainhasa'mixoffeatures'asNewScientistwrote.ButLiseEliotaprofessorofneuroscience神经学attheChicagoMedicalSchoolbegsodif.Sherecentlysaidthatthebrainisaunisex不分性别的organ.ThroughanalyzingbraindataofseveraldifferentmenandwomenEliotfoundthatthestatisticsaboutbraindifferencesmeannothing.AccordingtoherfindingsmaleandfemalebrainsarenotmuchmoredifferentfromeachotherthanmaleorfemaleheartsorkidneysAndmoreimportantlythesedifferencesdontshowthatmaleandfemalerainsworkdifferently.Soifit'snotinthebrainwhatmakesmalesandfemalesbehavedifferently?TheanswermaylieinsocializationaccordingtoTheAtlantic.Inthepastmanygenderstudiesignoredtheeffectsofaperson'ssocialbackgroundandupbringingrelyingonotherdatainstead.TakeformerHarvardUniversitypresidentLawrenceSummersforexample.Heuseda1970studythatshowedmenoutperformedwomen13﹣to﹣oneonthemathpartoftheSATtoarguethatmalesaremoresuitedtosciencesubjects.Howeveranotherstudyfoundthatiffemalesweregivenbetteropportunitiestostudysciencesubjectstheratewoulddroptothree﹣to﹣one.
Itwasthelastdayofcampandwewereengagedinatraditionpasseddownforyears.We1supposetotearthesheetsoffofourbedsstuff塞入themintoourpillowsandreturnthemtotheoffice. Pillows2fillwithheavysheetsthoughwerefar3goodthanpillowsforanendoftheweekpillowfight.Wewereknockingeachotheroverthebedsandsoonthepillowfightspreadintothehallwayofthesecondfloor4ourdormitory.Severaloftheotherboyshaddecidedtogather5fightagainstus. Iswungatoneofthemandmissedandthensawanotherpillowcoiningstraightatmyhead.Howeveritcaughtmyfriendfullinthechest.Unfortunatelyhewasstandingattheedgeofthenarrowstairway6ledtothefirstfloor.Heseemedabouttoknockhisheadwideopenonthewooden7stepwhensomeoneremovingtheirsheetsonthefirstfloor8laytheirmattress床垫onthebottomofthesteps.Myfriendlandedonthemattressandrolled9safeoffofit. Thepillowfightstoppedcoldasweallgazedin10amaze.
7.5分I'dliketosharealittlestorywithyouaboutsomethingthathappenedwhenIwasfour.Irememberitclearly.Ourlovingfamilydogwasnearingtheendofhislife.Myfatherpickedhimupandputhiminalittlebedwehadmadeforhim.Ourdogmycompanionwhomwehadcaredforbitmyfatherwhenheattemptedtohelphim.Howcouldhe?Why?Icouldn'tunderstandit.Ididn'tlikehimanymore. Ihadn'tthoughtaboutthatstoryforalongtimebutsomethingthathappenedlastweekbroughtitbacktome.Iwenttospeakwithafriend.WhenIknockedonthedoorImetinaninstantanangrylookandafewharsh尖刻的words.Whenthedoorwasslammed砰地关上inmyfaceIstoodthereshockedandinarushIwasremindedofmydogbitmyfather20yearsagoorso.Whatbroughtthatstorybackwasthatsamefeelingofbetrayal. Bothstoriestaughtmesomethingthenextday.YouseewhenIgotupinthemorningandwastoldmydoghaddieditbecamecleartomethathemusthavebeeningreatpain.Forhimtohavebittenafamilymemberhecouldnothavebeenhimself.MuchthesamefortheotherstorywhenIlearnedthatmyfriend'swifehadjustlefthim. Weareallbeingsofourenvironmentsouropinionsandfeelings.Andallofthosethingscancauseyoutosayanddothingsthatcan'tbeunderstoodbythosewhoarenotinthesamesituationwithyou. Ifyoumeetsomeoneeitherbehavingoutofcharacteroractinginawaythatdoesn'tseemtofitthesituationputoutyourhandandbepatientwhenyouthinkitisleastpossibleforhimtodoso.Youmayturnaroundastorythathasasadendingsimplybyyouractions. 1WhatistheinfluenceoftheincidentmentionedinParagraph1? A.Ithurthisfather'sfeelingdeeply. B.Ithaspuzzledtheauthoreversince. C.Itleftadeepimpressionontheauthor. D.Itmadetheauthordislikedogs. 2Whydidtheauthor'sfriendsayharshwordstotheauthor? A.Hewasill﹣tempered. B.Hewassufferingthepainoflosinghiswife. C.Hewasbotheredbyanunexpectedvisit. D.Theyoncequarreledandhecouldn'tforgivetheauthor. 3What'stheauthor'sadvicetous? A.Helpthoseinneed. B.Lookbeforeyouleap. C.Respectforothersisakindofvirtue. D.Learntoputyourselfinothers'shoes.
阅读下面短文根据所给情节进行续写使之构成一个完整的故事OnWednesdaynightitwastheclosingtimeofthemall.Buttherewasanhour'sworkatleasttogeteverythingcleanedup.Itwouldbe11:00pmbeforeIfinallygothome.Ihadn'tevenhadtimetohavedinner.Iwasstarving.Myfeetached.Mywholebodywasfilledwithtiredness.Icouldn'twaittogotobed.Butitwouldbeonly6hoursbeforethealarmwentoffat5:00amformydayjob.Thingshadbeentightforoverayearnow.MyhusbandPaul'sbusinesshadtakenahugehit.Ihaveafull﹣timejobatadaycarecenterandsomehowdomyhomeworkformycollegeclasstoo.ThenIhadtoworknightsatthemall.Withoutmetakingmysecondjobtherewouldn'tbeenoughmoneytopaythebills.LetalonebuyanyChristmaspresentsforour15﹣year﹣olddaughterMarie.NoonewantedtowakeuponChristmasmorningtoanemptytree.IbarelyevensawPaulandMarieanymore.Mariewasgrowingupbutateenagegirlstillneedshermom.Iworriedaboutheraboutus.Wassheeatingenough?Keepingupwithherschoolwork?Iwasn'tafraidofsacrifices.Everyonewashavingtoworkhardforthefamily.IknewIwasblessedtohavetwojobswhenmillionsofpeoplecouldn'tfindone.HowIhopedtoquitmyjobatthedaycarecenterandobtainafull﹣timedegree.I'ddroppeddowntooneclassaterm.IfIquitthattherewasnowayI'dfindthewillpowertotryagain.Besideswasn'tIalwaystellingMarietokeephopingandnevergiveup?MymindwentbacktotheconversationI'dhadwithMarieearlier.Paulhaddroppedheroffatthemallwhereshewasgettingpickedupforababysittingjob.'Rememberwe'regoingChristmasshoppingthisnight'shesaid.'NowI'llevenhavemyownmoney.Seeyoulater.'Thefloorwasnearlydone.Thebossaskedmetoleave.注意:1所续写短文的词数应为150左右:2至少使用5个短文中标有下划线的关键词语;3续写部分分为两段每段的开头语已为你写好;4续写完成后请用下划线标出你所使用的关键词语.Paragraph1:IopenedthebackdoorofthemallandsawMarieoutsidewithabagoffoodsmiling.Paragraph2:Ipulledhertightagainstme.
Peoplewhohavespenttimeinotherculturesoftentalkaboutreversecultureshock.Ifyouleaveyourcountryformorethanashorttouristtripandthengobackhomeyoumayfeel1.Whatisreversecultureshock?Wellimaginethefollowing:Youhaveadjustedtoanewcultureandhavecome2enjoylifeinit.Youhavemadenewfriendsandhavehad3greatvarietyofnewexperiences.Then4sadenoughit'stimetoleavebutyouarealsoveryexcitedabout5gohome.Arrivinghomeiswonderful﹣﹣﹣seeingallthefriendsandrelativesyouhaven'tseeneatingallthespecialfoodsreadingthenewspapers6hearingmusicyouhaven'theardinsuchalongtime.Butthenafterafewweeksperhapsthingsmaynotseemsowonderful.Youmaybecomecriticalofyourhomecountry7youhavegrownup.Youmaynotlikecertainthingsorideas.8someextentinyoureyeseitheryouoryourhomecountry9change. Thisistheprocessofreadjustment.It'sadifficultperiodandmanypeopleexperienceitafterthe10exciteofcominghomehaswornoff.Fortunatelyitdoesn'tusuallylastaslongasadjustmenttoanewculturedoes.
TheSecretsoftheBestCollegeStudents Agrowingbodyofevidencesuggeststhatthemostsignificantthingaboutcollegeisnotwhereyougobutwhatyoudo.HistorianandeducatorKenBainhaswrittenabookonthissubjectwhichdrawsaroadmapforhowstudentscangetthemostoutofcollege. 1TiaFullerwholaterbecameaproductivemusicianbeganplanningherfutureincollegeimaginingthesuccessfulcompletionofhergoalsinthefuture.Iwouldkeepfocusedonthelightattheendofthetunnel''shesaidtoBain.Thatwouldhelpmedevelopaclearvisionoffuture. PursuepassionnotA's.Whenhewasincollegetherespectedastrophysicist天文物理学家NeilDTysonsaid2InhisexperienceasastudentandaprofessorsaysTysonAmbitionandcreationbeatgradeseverytime. Getcomfortablewithfailure.WhenhewasstillacollegestudentcomedianStephenColbertbeganworkingwithanimprovisational即兴的theaterinChicago.HetoldBainImprovisationisagreateducatorwhenitcomestofailing.3 Makeapersonalconnectiontoyourstudies.InhersecondyearincollegeElizaNohnowaprofessorofAsianAmericanstudiestookaclassonpowerinsociety:whohasithowit'sused.Itreallyopenedmyeyes.4NohtoldBain.Ididn'tjustlistentolecturesbutbegantousemyownexperiencesasajumpingoffpointforaskingquestions. Developsympathyforothers.ReynaGrandeawell﹣knownnoveliststartedwritingseriouslyinherjunioryearmcollege.5.ReynapointsoutAsawriterIhavetounderstandwhatmotivatesacharacterandIseeotherpeopleascharactersinthestoryofmylife.Grandesays.WhensomeonemakesmistakesIalwayslookatwhatmadethemactthewaytheydo. A.Readandthinkactively. B.Setgoalsandmakethemreal. C.There'snowayyouaregoingtogetitrighteverytime. D.Writingfictiontaughtmetosympathizewiththepeoplewhopopulatedmystories. E.IdecidedthatIwantedtodosomethingtohelppeopleandbringalittlejusticetotheworld. F.Iwasmovedbycuriosityinterestandfascinationnotbymakingthehighestscoresonatest. G.ForthefirsttimeinmylifeIrealizedthatlearningcouldbeaboutmeandmyinterestsaboutwhoIwas.
Womenareattheirhappiestattheageoftwenty﹣eightastudyhasfound. Researchersdiscoveredwomenfeelmostconfidentandhappy1theirlovelifeandbodyshapeshortly2theyreachthirty. Theageoftwenty﹣eighthasbeenpinpointed认定asthetimeinawoman'slife3theirhairlooksthebestbodyshapeisatitspeakandconfidenceisatanall﹣timehigh. Thesurveyof25﹣65﹣year﹣olds4recordtheageatwhichwomenweremostcontentintwelvekey5areaoftheirlife. Accordingtotheresultswomenarehappiestintheircareerattwenty﹣nineandmostcontentwiththeirrelationshipsoneyearlateratthirtydespitehavingthebestsexattwenty﹣eight. Butallisnot6losefortheoverthirtiesaswomenfeelmostcontentwiththeirfinancialsituationatthirty﹣threeandateasewiththeirhomeandfamilylifeatthirty﹣two. Theresearchfoundtwothirdsofwomenfeeltheyagemore7thanmen.Italsoemerged表明that56percentofwomenworryaboutlosingtheirlooksastheygetolder. But8drinkfromthefountainofyouthdoesn'tcomecheapastheaveragewomanwillspend￡600everyyearonbeautyproductsinabid9staylookingyoung. Theresearchalsofoundwomenspendoverfivedaysayearontheir10beautifulroutine﹣﹣﹣anaverageoftwenty﹣twominuteseveryday.
Irecentlygaveupdriving.IpassedmytestlastyearbutIstoppedvoluntarilywhenIturned90.Ithoughtthatitwasfinallytherighttime. Needlesstosaymyfamilywasrelieved﹣﹣﹣theydidn'thavetohavethattalkwithme.Mydoctorwasrelievedtoo.Nexttodiagnosinganincurableillnesstakingawayasenior'sdrivinglicenseisprobablyoneofthehardestthingshemustdo.SincemywifepassedawayyearsagoImadethisdecisionalonealthoughI'msuremylatewifewouldhaveapproved.IknewIcouldn'tmoveaswellasIusedtoandmyvisionwasgettingworse.IthurttoturnmyheadwhenbackingupandafterlengthyshoppingtripsIwasexhausted. AsIhandedoverthekeysofthecartomysonIthoughtofallthecarsmywifeandIhadownedovertheyears.Acarisfreedomindependenceandanextensionofyourpersonality.Withoutoneyoufeellikelessofaperson. Ihaveasonwholivesclosebyandweshoptogetheratleastonceaweek.Myneighborsalsooffermeridesbuttheideaofbeingdependentonotherpeopleafteralifetimeofindependenceishardtogetusedto. I'velearnedtoadaptandchangeWithmyowncarIcouldgoanywhereatamoment'snotice.ButnowmyhorizonshaveshrunkandImustplanaheadforeverything.Nomorepoppingoutformilkorbreadorlast﹣minuteafternoondrives. HoweverIfoundasolutiontosomeofthoseproblems.LastyearIdecidedtobuyanicenewfour﹣wheelelectricscooter.Atatopspeedof12km/hittakes20minutestogetfrommyhousetothegrocerystore.Butnowmyrouteisfreefromtrafficandnoisewithtreesandgreeneryreplacingcarsandstreetsigns. GivingupdivingishardandsomeofusneveracceptthelosFormehoweveritwasjusttheendresultofalongandluckylife.Lifeintheslowlane车道turnedouttobesomuchfunandsomuchcheaper. 1Whatcanwelearnabouttheauthorfromthefirsttwoparagraphs? A.Hedecidedtostopdrivingbypersuasion. B.Hedevelopedanincurableillnessattheageof90. C.Hecheckedwithhislatewifebeforemakingthedecision. D.Herealizedhishealthwentfrombadtoworse. 2Whichonehasthesamemeaningastheundlinedwordinparagraph3? A.GuestscouldgettheFoodListandextensionnumbersintheRoomServiceGuide. B.Theextensionofthesubwaywilltakeseveralmonths. C.Howpeoplechoosetodressisoftenanextensionofwhotheyare. D.Theyappliedforavisaextensionsothattheycouldstayinthatcountryforonemoremonth 3Howdidtheauthorbalancehislifewithoutthecar? A.Hebrokeawayfromthetrafficandnoise. B.Hegotanewvehicleandadaptedtodrivingslowly. C.Hesharedtherideswithhissonorneighborseveryday D.Hetookhisseniorsdrivinglicensebackfromhissonanddroveagain. 4Whatisthemainpurposeofthisarticle? A.Todescribethetypicallifeofanoldman. B.Topersuadereaderstoliveaslowerlife. C.Tostresstheimportanceofbeingindependent D.Toshowthatachangeoflifemaybringpositiveoutcomes.
Happinessisnotawarmphone.TeenswhoseeyesarehabituallygluedtotheirsmartphonesareevidentlyunhappiersaidprofessorofpsychologyJeanM.Twenge. TwengealongwithcolleaguesanalyzedthedatafromanationalsurveyofmorethanamillionU.S.8th﹣10th﹣and12th﹣graders.Thesurveyaskedstudentsquestionsabouthowoftentheyspenttimeontheirphonesandcomputersaswellasquestionsabouttheirsocialinteractions互动andtheirhappiness. Onaveragetheyfoundthatteenswhospentmoretimeinfrontofscreendevices设﹣﹣playingcomputergamesusingsocialmediaandvideochatting﹣werelesshappythanthosewhospentmoretimeinnon﹣screenactivitieslikesportsreadingnewspapersandmagazinesandface﹣to﹣facesocialinteraction.Theyalsofoundthathappiestteensuseddigitalmediaalittlelessthananhourperday.Butafteradailyhourofscreentimeunhappinessrisessteadilyalongwithincreasingscreentime. ThekeytodigitalmediauseandhappinessislimiteduseTwengesuggestedAimtospendnotmorethantwohoursadayondigitalmediaandtrytoincreasetheamountoftimeyouspendseeingfriendsface﹣to﹣faceandexercising﹣twoactivitiesreliablylinkedtogreaterhappiness. Lookingathistoricaltrendsfromthesameagegroupssincethe1990stheresearchersfoundthatthepopularityofscreendevicesovertimecoincidedwithageneraldrop﹣offinreportedhappinessinU.S.teens.Youngpeople'slifesatisfactionandhappinessdeclinedafter2012.That'stheyearthatthenumberofAmericanswhoownedasmartphoneroseabove50percent.TwengenotedByfarthelargestchangeinteens'livesbetween2012and2016wastheincreaseintheamountoftimetheyspentondigitalmediaandthedeclineinin﹣personsocialactivitiesandsleep.Andthearrivalofthesmartphoneisthemostconvincingexplanationforthesuddendecreaseinteens'happiness. 1WhatisthefindingofTwenge? A.Longerscreentimemorelifesatisfaction. B.Screen﹣addictedteensareunhappy. C.Toomuchscreentimeleadstowarmphones. D.Teensaregluedtotheirsmartphones. 2WhatcouldsmartphoneusersdotogainhappinessaccordingtoTwenge? A.Limitthescreentimetoonehour. B.Spendatleasttwohoursofscreentime. C.Prohibittheuseofsmartdevicestotally. D.Decreasethetimewithfriendsandforexercise. 3Theunderlinedwordscoincidedwithinparagraph5probablymeans. A.influenced B.raised C.matched D.reduced
StartingthisSeptemberfreshmenatTsinghuaUniversitywillhavetotakeswimmingcourses.Theywon'treceivetheirdegreesuntiltheypassthetest1success.Exceptionswillbeallowedforstudentswithcertainphysicalormentalconditionsif2provebymedicalstaff. Actuallyviewingtheability3swimasamustforstudentsisnotsomethingnewtothisuniversity.Itwasa4requireintheearly20thcentury.Laterit5dropduetoarisingnumberofstudentsandalackoffacilities设施. Asfor6newruleopinionsvarygreatly.Somestudentswelcomeitsayingit'sanecessaryskill7cansaveliveswhileothersarguethatit'snotreasonabletolinkdegrees8swimmingability. InresponsetothenegativereviewsLiuBoheadoftheDivisionofSportsSciencegavethefollowingexplanation.9awatersportswimmingdoeslessharmtojoints关节andmusclesandishelpfulinimprovingstudents'endurance.10consequenceit'sbeneficialtostudentsinthelongrun.
HowtoGetRidofStudyStress Doyoufindyourselffeelingstressedandoverwhelmedwhenstudyingforquizzestestsorfinalexams?Thisisacommonproblemamongmanyyoungpeoplewhethertheyareinjuniorhighorcollege.Howevertherearemanytricksthatcanbeusedtoavoidbeingstressedaboutstudyingforschool.1 Whetheryouaretakingacollegecourseonpsychologyoradriver'seducationclassitisimportanttopaycloseattentiontowhatyourinstructorissaying.Typicallyiftheteacherrepeatsthemselvesorwritessomethingontheboarditisimportanttounderstandandremember.2 Animportantpartofpreventingdistractionisbytakingconcise简明的clearnotesinclass.3Writedownthingsyoudonotclearlyunderstandorcannotremember.Usegraphsdiagramsandarrowstothoroughlyexplainconcepts.Thiswillhelpyouunderstandlecturesandwillreducestudystressatalatertime. Ifyoufindyourselfnotunderstandingaconceptandthetextisnotmakingitcleartoyouaskquestions.4Ifyoudonotunderstandsomethingyourstudyingwillbeconfusingandhelpyouverylittle.Iftheteachermentionssomethinginclassdonotbeafraidtoraiseyourhandandaskiftheycanexplainitfurther.Betteryettalktoyourteacherafterschooltogetsomeone﹣on﹣onetimesothatyoufeelconfidentaboutyourcomprehensionofatopic. 5Gettingadequatesleepallowsthemindtostoreconceptsandtopicssothatyoucanrememberandunderstandthem.Getenoughsleepthenightbeforeanexam.Thisshouldbenoproblemsinceyouwon'tbecramming! A.Trytomakeittoeveryclassandtakenotestokeepyourselffrombeingdistractedduringthelecture. B.Gettingaheadonreadingthematerialwillensurethatyouunderstanditoratleastsomeofit. C.Restisactuallyvastlyimportantforyourmindtoretaininformation. D.Writedownthingstheteacherrepeatsorwritesontheboard. E.Setasidethirtyminuteseveryeveningtorepeatwhatyoulearnedinclassthatday. F.Herearesomeeffectivewaystoreduceyourownstudystress. G.Youmustaskquestionsinordertohavestress﹣freestudying.
Noteveryonedealswiththeirfeelingsasanopenbookforotherstoread.1Learntoopenupinordertoimproveyourmentalhealth. 2Acceptthisandmoveon.Giveyourselfsometimetohavesweatypalmsorashakyvoicesinceitwillgetbetterwithpractice. Askpeopleopen﹣endedquestions.Tobeginpracticingopeningupyouneedtoengageinhonestopenconversation.TryaquestionlikeHowarethingsgoingatwork?insteadofHow'sitgoing?togetanopenanswer.Theninturnansweropen﹣endedquestionswithhonestanswersinsteadofFineorOK.3Howeverinmostcasespeopleareflatteredthatyouarelisteningtothemandinterestedintheirlife. Tryemulating效仿someonewhoisveryopen.Observetheminasocialsituation.Thentrytoactasifyouarethemoccasionally.Manyopenbehaviorsarelearnedandnotanaturalpartofpersonality.4 Avoidbeingaknowitall.Somepeoplethinkadviceisopeningupbutitisunlikelytohelpyoumoreopen.Whenyouwanttogiveadvicelistenandtrytolearnsomethingnewfromthesituation. 5Scheduleatleastonelongconversationperweek.Intheconversationyoutellsomeoneabouttheemotionalanddifficultpartofyourlife.Getintothepracticeofopeningupaboutwhat'sgoodandbadinyourlife. A.Inthiscasepracticecanmakeperfect. B.Callclosefriendsandfamilymembersmoreoften. C.Askingpeoplepersonalquestionsisnotalwaysproper. D.Tryconnectingabouthobbiesinterestsvacationsorbooks. E.Listeningpatientlyisagreatwaytoovercomefearofsharingemotionsinpublic. F.Understandthatthereisusuallysomefearwithopeninguptootherpeople. G.Howeverclosingyourselffromnewpeoplecanstopyourpersonalgrowth.
7.5分Itseemsthatelectronicdevicesjustkeepgettingsmaller.ScientistsintheUnitedStateshaveannouncedthecreationofthefirsttransistorwithonlytwodimensions二维. Atransistorisasmallelectronicdevicethattransfersorcarrieselectroniccurrent.Scientistshopethesenew2Dtransistorswillbeusedforbuildinghigh﹣resolution高分辨率displaysthatneedverylittleenergy. Twogroupsofscientistscreatedthese2Dtransistors.Theyreportthatthetransistorsareonlyafewatomsthick. Usuallytransistorsaremadewiththeelementsilicon硅.ComputerprocessorsmemorychipsTVscreensandotherelectronicdevicescontainbillionsofsilicon﹣basedtransistors.Buttheseverysmallelectricalpartshavecertainlimitations. DimitrisIoannouisanelectricalengineeringprofessoratGeorgeMasonUniversity.Hesaysthetraditionaltransistorhasbeenimprovedasmuchasitcanbe.Headdsthatresearchershavebeenlookingfornewmaterialswithspecialfeaturesandtheywanttransistorstobeseenthroughandsoft. Ifthelayersareverythinthetransistorcanbecomeflexiblesoitdoesn'thavetoberigid坚硬的likeitwouldbeinasiliconchip.SopeoplecanthinkofapplicationslikewearableelectronicstelevisionscreensandotherthingssaidIoannou. Thesenewtransistorscanalsocarryhighercurrent.Theyalsocanmovethecurrentmuchfasterthantraditionaltransistors.Thisisimportantforhigh﹣definitionscreens. DimitrisIoannousaysthescientificsuccesscouldproveveryusefulinthefuture.Nowhowgoodandhowusefulitwillbeit'sstillinthestageofresearchbutitcertainlyisanadvancesaidIoannou. 1WhichofthefollowingstatementsaboutthenewlycreatedtransistorisTRUE? A.Theyareexpectedtobeusedinhigh﹣resolutiondisplays. B.Thetransistorsaremadewiththeelementsilicon. C.Theyarerigidjustliketraditionaltransistors. D.Theyhavealreadybeenputintoactualuse. 2WhatdoestheunderlinedsentenceinParagraph5mean? A.Thetraditionaltransistorshavebeenchangedintotwo﹣dimensionalones. B.Manyofthetraditionaltransistorshavebeenimprovedovertheyears. C.Thetraditionaltransistorhasbeendevelopedtoitsfullest. D.Thetraditionaltransistorhasbeendevelopedquitewell. 3WhatisDimitrisIoannou'sattitudetowardsthecreationofthenewtransistors? A.Negative. B.Neutral. C.Indifferent. D.Positive.
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