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（1）计算：（-2）2-（）0+||+sin60°． （2）先化简，再求值：•（1+），其中x＝2-1．
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VisitChicagoChildren'sMuseum Inbrief Thismuseumoffersplentyoffunhands﹣onactivitiesforkids.HoweverthisisoneofthefewChicagomuseumsnotfunforthewholefamilyasadultsandolderkidswillbeboredtotears. Address700EastGrandAve.NavyPierChicago Phone312﹣527﹣1000 Publictransportation CTAbuslines#29StateStreet#65GrandAvenueand#66ChicagoAvenueallserveNavyPier. Parkingfees •MondaythroughThursday﹩20 •FridaythroughSunday﹩24 •Holidays24 Openinghours •Weekdays10am﹣5pm •Weekends10am﹣8pm Entrancefees •Adults﹩12 •Children﹩12 •Seniors65+﹩11 •Childrenunder5free Activities LocatedatoneofChicago'stoptouristattractionsNavyPierthemuseumoffersthreefloorsofactivitiesforkidsincluding •PlayItSafe﹣﹣allabouthomesafety •InventingLab﹣﹣providespartsandinstructionsforcreatingthings •KidsTown﹣﹣aplayroomrecreatingaChicagoneighborhoodwherekidscanpretendtodothingslikeshoppingforgroceriesanddrivingaCTAbus •ClimbingSchooner﹣﹣athree﹣floorclimbingbuilding •MyMuseum﹣﹣kidsgettocreatevariouspiecesofartthatareallaboutme •Skyline﹣﹣kidslearnaboutskyscrapersanddesigntheirownbuildings •TreeHouseTrails﹣﹣aplayareadesignedlikeaforest •Waterways﹣﹣wateractivitiesshowinghowpumpsanddamswork 1HowmuchwillJohn10hisparents40andsister6payiftheydrivetothemuseumat2pmonMonday? A.﹩36. B.﹩48. C.﹩56. D.﹩68. 2Kidswhoarefondofcreatingworksofartshouldchoose. A.PlayItSafe B.InventingLab C.MyMuseum D.Skyline 3IfyougotoKidsTownyoucan. A.goonashorttriptoaforest B.buysomegiftsforyourfriends C.knowmoreaboutpumpsanddams D.experienceChicagoneighborhoodlife 4WhatcanweknowaboutChicagoChildren'sMuseum? A.Itisathree﹣floorbuilding. B.Itisnotfitforadultsorolderkids. C.ItisthemostpopularmuseuminChicago. D.ItisoneofChicago'stoptouristattractions.
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每年的10月31日是联合国确定的世界勤俭日.假设你是李华你最近给你在美国的朋友Mike的一封e﹣mail中专门讨论了勤俭的问题.你的e﹣mail内容应包括 1指出校园内中学生花钱如水没有节约的概念. 2分析产生这一现象的原因独生子女生活水平的提高追求时髦 3你对节俭的看法. 注意 1字数110左右. 2开头和结尾已写好不计入总字数. 3参考词汇世界勤俭日WorldThriftDay花销expenditure现象phenomenon奢侈extravagance这个提示不要为好范文中并未用到有了反而增加了难度 DearMike How'severythinggoing? AsyouknowWorldThriftDayfallsonOctober31.SothistimeI'dliketodiscussthriftwithyou.Inrecentyearsthemonthlyexpenditureofmiddleschoolstudentshasbeenonthesharprise.. Howaboutyourpointaboutthrift? Bestwishes! Yoursfaithfully LiHua
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Iwaselevenyearsoldwhenthefirebrokeoutthatyear.IstoodoutsideinjustmyunderwearwhileIwatchedthe1thatIgrewupinrapidlyburntothe2.AfewminutesearlierIhadbeen3asleepinmynicewarmbedwhena4wokemeup.Mymum'sbedroomwasjustnexttomineandmybrother's.Afirehadbrokenoutthereand5her.WhileIstumbled跌跌撞撞地走aroundinthe6anddarknesssheranfromroomtoroomquicklywakingeveryoneinthehouse.Thehousehoweverwasover50yearsoldandmadeofwood.Beforewecoulddoanythingthefire7it.Weallbarely8outsidebeforethe9engulfed吞没everyroom. Istoodthere10whilethefiredestroyedmybooksclothesandtoys.Iwatched11whilemymumcriedandmyDadswore.I12whatwasgoingtohappentous13wehadlostallofourthings.AsIlookedaroundthoughIrealizedsomethingforthefirsttimeThethingsthat14aren'tthings.Irealizedatthatmomentthatwewereallalive.15thatwasessentialhad16thefire.Wewouldallbearoundtoloveeachotherformanyyearstocome.Andthatwasallthatmattered. Istillthinkofthatfireinthe17thathelpedmetobecomewhoIamtoday.Itshowedmefortheveryfirsttimewhatistruly18inthislife.Ithelpedmetolearnthatthelovewe19isfarmoreimportantthanthethingswe20. 1A.room B.house C.floor D.yard 2A.ground B.field C.ashes D.ruins 3A.loud B.quick C.good D.sound 4A.call B.scream C.voice D.noise 5A.caught B.frightened C.awakened D.denied 6A.smoke B.fire C.light D.noise 7A.spared B.possessed C.consumed D.found 8A.gotit B.madeit C.putit D.triedit 9A.flames B.dust C.silence D.fear 10A.nodding B.watching C.trembling D.staring 11A.curiously B.bravely C.peacefully D.helplessly 12A.wandered B.wondered C.fancied D.amazed 13A.nowthat B.enenif C.asif D.sothat 14A.rely B.mind C.matter D.value 15A.Something B.Everything C.Nothing D.Anything 16A.escaped B.saw C.survived D.passed 17A.afternoon B.day C.morning D.night 18A.basic B.reliable C.useless D.essential 19A.share B.protect C.feed D.remember 20A.apply B.aim C.support D.possess
Geneticengineeringinitsbroadestdefinitionmeanstocontrolaspeciessothataparticulartraitisincreasedinthepopulation.Atraitishowanorganism有机体looksoractsorwhatitdoes.Havingbrowneyesisatrait.Flyingincirclesisatrait.Climbingtreesisatrait. Theearliestformsofgeneticengineeringoccurredonfarms.Peopleselectedseedsfromplantsthathadmorefruitproductionortastierleavesthanotherplantsoftheirtypes.Thentheychosetosavetheseedsfromthebestofthatgrouptosowthenextyear.Soyearbyyearthefarmersproducedbetterandbettercrops.Thistypeofactivityprobablyhasbeengoingonsincemankindfirstsettledinvillagesandbeganmakingalifeforthemselvesinonelocationabout12000yearsago! Thesamesortofthingwouldhavealsohappenedwithanimals.Forexamplepeoplechosetoeattheanimalsthatdidn'thavefavorabletraitsandlettheanimalswiththefavorabletraitsreproduce.Itwasthousandsofyearsbeforemankindfiguredouthowplantsandanimalsreproducethemselves.Withthisknowledgepeoplecouldpollinate授粉plantsbyhandorkeepapairofanimalstogetherinordertodeliberatelycauseanincreaseinafavorabletrait. Itwasonlyinthelast250yearsthatscientistsbeganfiguringoutchromosomes染色体andgenesandtheroletheyplayinthewayonegenerationpassesitstraitsontothenext.Andit'sonlybeeninthelast30yearsthatscientistshavebeenabletocutoutspecificgenesfromoneorganismandputtheminanother.Itisthis30﹣year﹣oldtechnologythatisdescribedbythenarrowdefinitionofgeneticengineering.Mankindhaslongbeenabletohaveadeliberateimpactontheworldaroundhim.Henowpossessesthetoolstodeliberatelyimpacthimself.Somepeopleareafraidofwhatmightbedonewiththatpower. 1Thetextismainlydevelopedby. A.askingquestions B.examiningdifferences C.makingcomparisons D.givingexamples 2Paragraph2mainlytalksabout. A.thespreadofgeneticengineering B.theadvantageofgeneticengineering C.theoriginalapplicationofgeneticengineering D.thepopularityofgeneticengineering 3Theunderlinedwordtheminthelastparagraphrefersto. A.specificgenes B.specialtraits C.chromosomes D.scientists 4Whatcanwelearnaboutgeneticengineeringfromthelastparagraph? A.Ithasahistoryof250yearsbythenarrowdefinitionofgeneticengineering. B.Scientistsdon'tknowhowtomakegooduseofit. C.Peoplehaveamisunderstandingofitinthepast30years. D.Itisbecomingapowerfultoolofmankind.
Shynessisthecauseofmuchunhappinessforagreatmanypeople.Shypeopleareanxiousandself﹣consciousthatistheyareconcernedwiththeirownappearanceandactionstoomuch.NegativethoughtsareconstantlyoccurringintheirmindsWhatkindofimpressionamImaking?Dotheylikeme?DoIsoundstupid?AmIwearingunattractiveclothes? Itisobviousthatsuchuncomfortablefeelingsmustaffectpeopleunfavorably.Aperson'sself﹣conceptisreflectedinthewayheorshebehavesandthewayapersonbehavesaffectsotherpeople'sreactions.Ingeneralthewaypeoplethinkaboutthemselveshasadeepeffectonallareasoftheirlives. Shypeoplewhohavelowrespectarelikelytobepassiveandeasilyinfluencedbyothers.Theyneedfaiththattheyaredoingtherightthing.Shypeopleareverysensitivetocriticism.Itmakesthemfeelinferior自卑.Theyalsofinditdifficulttobepleasedbypraisesbecausetheybelievetheyareunworthyofpraise.AshypersonmayrespondtoapraisewithastatementlikethisoneYou'rejustsayingthattomakemefeelgoodIknowit'snottrue.Itisclearthatwhileself﹣awarenessisahealthyqualityoverdoingitisharmful. Canshynessbecompletelygotridoforatleastreduced?Fortunatelypeoplecanovercomeshynesswithdeterminationsinceshynessgoeshandinhandwithlackofselfrespect.Itisimportantforpeopletoaccepttheirweaknessaswellastheirstrengths.Eachoneofushashisorherowncharacteristics.Weareinterestedinourownpersonalways.Thebetterweunderstandourselvestheeasieritbecomestoliveuptoourchancesforarichandsuccessfullife. 1Thefirstparagraphismainlyabout. A.thecauseofshyness B.theeffectofshynessonpeople C.thefeelingsofshypeople D.thequestionsinthemindsofshypeople 2Accordingtothewriterself﹣awarenessis. A.harmfultopeople B.aweakpointofshypeople C.thecauseofunhappiness D.ahealthyquality 3Whatistheshypeople'sreactiontopraise? A.Theyarepleasedbyit. B.Theyfeelitisnottrue. C.Theyareverysensitivetoit. D.Theyfeeltheyareworthyofit. 4Wecanlearnfromthepassagethatshynesscan. A.beovercomewithdetermination B.helpustoliveuptoourfulldevelopment C.enableustounderstandourselvesbetter D.havenothingtodowithlackofselfrespect
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AngelGarciaCrespoisacomputerengineeratCarlosIIIUniversityofMadridinSpain.Hisgrouphasinventedanewwayfordeaf﹣blindpeopletowatchTV.Theideaforthetechnologygrewoutofpreviousworkbyhisgroup.Theteamhadalreadyworkedonmakingaudiovisual视听的materialsaccessibletopeoplewitheithervisionorhearingdisabilities.Butthegroupwantedtohelppeoplewithbothchallenges.Sotheyaskedsomedeaf﹣blindpeoplewhatwouldhelp. Inadditiontorelyingontheirsenseoftouchtocommunicatedeaf﹣blindpeoplecanalsogetandsendinformationwithaBrailleline.TheBraillesystemusespatternsofraiseddotstostandforlettersandnumbers.ABraillelineisanelectronicmachinewithachangeableBrailledisplay.Dotsriseupordropdownbasedontheinformationsenttothemachine. NowthenewsystemchangesTVsignalstodataaBraillelinecanuse.Thekeytothesystemisthepossibilityofusingsubtitles字幕tocollectTVinformationGarciaCrespoexplains.Subtitlestravelwiththeimage影像andtheaudioinelectromagneticwaveswedon'tsee.Butanelectronicsystemcankeepthosewaves. Firstacomputerprogramorapppullsoutthesubtitlesandvisualdescriptionsfromthebroadcastsignal.ThesystemthencombinestheinformationandchangesbothintodataforBraille. Nowanotherappgetstoworkwhichsendsthedataouttopeople'sBraillelinesondemand.ThisisdoneinrealtimeinlessthanasecondGarciaCresposays.Thisletsadeaf﹣blindpersonwatchTVasit'sbroadcast.ThesystemwillworkwithvariousBraillelinesaslongasthere'sabluetoothconnectionavailable.NowthesystemisonlyusedinEuropeanditshouldsoonbeavailableintheUS. 1WhatinspiredGarciaCrespo'sgrouptoworkonthenewtechnology? A.Deaf﹣blindpeople'spoorlife. B.Theirpityonthedisabledpeople. C.Thechallengestheyfaceinwork. D.Theirgroup'spreviousresearch. 2WhycantheelectronicsystemcollectTVinformation? A.Itcancombineallkindsofbroadcastsignals. B.Itcankeepthewaveswithsubtitlestraveling. C.ItcanworktogetherwithavarietyofBraillelines. D.Itcanpulloutthesubtitlesandvisualdescriptions. 3Whatdoestheauthorthinkofthefutureofthenewtechnology? A.Challenging. B.Bright. C.Rewarding. D.Hopeless. 4Whatshouldbeasuitabletitleforthetext? A.NewTechnologyIsImprovingDeaf﹣blindPeople'sLife B.ANewBrailleLineIsAppliedtoDisabledPeople'sLife C.ASpanishGroupMakesTVAccessibletoBlindPeople D.NewTechnologyHelpsDeaf﹣blindPeopleWatchTV
Duringthecourseofalifetimeweallmakemistakes.Andoftenwetakeforgrantedwhatwehavethinkingthatwe1whatwealreadyhaveorbelievingthatwewillneverneedanyoneto2usoutfromdifficultand3times. Suchwasthe4ofCecilia.Ceciliahadagreatjobanicehouseandeverythingsheneeded5shewasnotakindpersonforseveralreasonsthatbecame6onceyougottoknowher.Thefirstthingwasherlackof7forotherswhowerenotasfortunateasshewas.Shewouldnothelpanyone8wouldsheevenbegintoexpressanysympathyforanyone'stroubles.Her9wasthattheywerejusttoolazy. Butthencamethecatastrophicday.Herhusbandgotintofinancialdifficultytothepoint10hewasforcedtodeclarebankruptcy破产.Shefoundthatshewastheonewho11nothing. Nowshewas12forhelp.Shealsofoundoutthatherparentswereunwillingtohelpherbut13forherhisfamilywaswillingandabletohelpthemthroughthesedifficulttimesdespitethe14thatshehaddeliberatelykeptthemoutofherlife.15Ceciliawasassistedthroughchallengingtimesonce16shechangedtohertrueself. Butthisisnotthemainpointofthestory.Weallneedhelp17alonglife'spathwhetherwethinkwewillornot.Andifyouaretheone18helpjustrememberthisnomatterwhat19lateryouwillalwaysbe20inthefactthatyouhaveremainedstrongandtruetoassistthosethatneedyourhelp. 1A.realize B.treasure C.deserve D.manage 2A.help B.protect C.keep D.assume 3A.inspiring B.challenging C.pleasing D.moving 4A.character B.attitude C.case D.experience 5A.Therefore B.Otherwise C.Normally D.However 6A.obvious B.familiar C.unclear D.uncertain 7A.affection B.sympathy C.confidence D.caution 8A.so B.and C.or D.nor 9A.plan B.view C.promise D.advice 10A.when B.that C.where D.what 11A.learned B.shared C.knew D.had 12A.desperate B.enthusiastic C.considerate D.fearful 13A.unluckily B.fortunately C.sadly D.naturally 14A.section B.reason C.fact D.difficulty 15A.Nowthat B.Eventhough C.Aslongas D.Incase 16A.up B.away C.over D.apart 17A.somewhere B.everywhere C.anywhere D.nowhere 18A.refusing B.receiving C.owing D.giving 19A.happens B.comes C.develops D.forms 20A.involved B.anxious C.absorbed D.secure
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HowtoProtectYourselffromHackersOnline Anincreaseincyber﹣attacks网络攻击makestheInternetseemlikeascaryplacethesedays.Howcanindividualsprotectormakeitmoredifficultforhackerstoaccesstheirinformation?Hereareseveraltipsthatcanhelpyouprotectagainstcyber﹣attacks 1 Hardpasswordsincludeupperandlowercaselettersnumbersandspecialcharacters.Theyshouldbeatleasteightcharactersinlength.Theyshouldalsonotspelloutwordseasyforhackerstofindlikeyourpet'snameorthenameofafamilymember. Changeyourpasswordregularly Averycommonmistakemadebyusersistocreateonehardpasswordbutthenneverchangeit.Rememberingalonglistofcomplicatedpasswordscanbedifficult.Butnopasswordisunbreakable.Hackersarebetterabletohackmultipleaccountsifthoseaccountsallhavethesamepassword.ApasswordmanagementservicelikeDashlaneorPasswordBoxcanhelpyoukeeptrackofhardpasswords.2 Clearyourbrowser浏览器history Thisgoesforallthedevicesyouuseinaday﹣yourhomecomputeryourworkcomputeroryourfriend'siPad.InternetbrowserslikeFirefoxorChromekeeptrackofwhereyou'vebeenandwhatyou'vedoneonline.Theykeeprecordsofeverysiteyouvisited.3Itisveryeasyforanyonewhoseesthatinformationtostealadetailedrecordofyouronlineactivities. DonotusefreeWi﹣Fi 4Oftenauserdoesnotneedapasswordtoconnecttothesewirelessnetworks.Theseservicesmightbeusefulbutthey'realsoaneasywayforhackerstoaccesseverythingonyourdevice. Useanti﹣virusprotection Therearemanyanti﹣virusservicesavailableforusers.5Someanti﹣virusservicesareevenfree.Theyareagreatwaytohaveaprofessionalhelpkeepingusersonestepaheadofhackers. A.Becarefulwhileusingthumbdrive. B.Theseservicespermituserstoeasilystoreandsecuretheirpasswords. C.Makeyourpasswordhardertohack. D.Theycanoffermanydifferenttypesofcomputerprotection. E.AnincreasingnumberofpublicplacesnowofferfreewirelessaccesstotheInternet. F.Informationaboutwhatyousentfromorsavedonyourcomputercanbekeptfordaysorweeks.
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YuanLongpingisoneofthemostfamousscientistsintheworld.He1struggleforthepastfivedecadesfortheChinesefarmers.Hegrows2iscalledsuperhybridrice.Thisspecialstrainofricemakes3possibletoproduceonethirdmoreofthecropinthesamefields.4usehishybridricefarmersareproducingharveststwiceaslargeasbefore. Findingwaystogrowmorericehasbeenhislifegoalsincehegraduatedfromcollegein1953.Atthattimehungerwas5disturbingprobleminmanypartsofthecountryside.Thereforehewantedtohelphismotherlandridofhunger6increasingthericeoutputwithout7expandtheareaofthefieldsandhefinallymadeit. 8agreatscientistheleadsaverysimplelife.Hebelievesthatapersonwithtoomuchmoneyhasmoreratherthan9fewtroubles.Hehasanotherdream10hisricecanbegrownaroundtheglobeandnohungerisintheworld.
DonnaStricklandisaprofessorintheDepartmentofPhysicsandAstronomy.ProfessorStricklandisoneoftherecipients受领者oftheNobelPrizeinPhysics2018withGérardMourouherPhDsupervisoratthetime.TheypublishedthisNobel﹣winningresearchin1985whenStricklandwasaPhDstudentattheUniversityofRochesterinNewYorkstate.Togethertheypavedthewaytowardthemostintenselaserpulsesevercreated. ProfessorDonnaStricklandisonlythethirdwomanevertohavewonaNobelPrizeinphysics.SheandherfellowwinnerswerehonoredforwhattheNobelCommitteecalledground﹣breakinginventionsinlaserphysics.ProfessorStricklanddevisedawaytouselasersasveryprecisedrillingorcuttingtools.Millionsofeyeoperationsareperformedeveryyearwiththesesharpestoflaserbeams. ﹣﹣﹣Howsurprisingdoyouthinkitisthatyou'rethethirdwomantowinthisprize? ﹣﹣﹣Wellthatissurprisingisn'tit?Ithinkthat'sthestoryofMariathatpeoplewanttotalkabout﹣﹣﹣thatwhyshouldittake60years?Therearesomanywomenouttheredoingfantasticresearchsowhydoesittakesolongtogetrecognized? Physicsstillhasoneofthelargestgendergapsinscience.Onerecentstudyconcludedthatatthecurrentratesitwouldbemorethantwocenturiesuntiltherewereequalnumbersofseniormaleandfemaleresearchersinthefield. ThelastwomantowinaphysicsNobelwasGerman﹣bornMariaGoeppert﹣Mayerforherdiscoveriesaboutthenucleiofatoms.BeforethatitwasMarieCuriewhosharedthe1903prizewithherhusbandPierre.Thisyear'swinnershopethatbreakingthishalfcenturyhiatuswillmeanthefocusinfuturewillbeontheresearchratherthanthegenderoftheresearcher. 1Whichofthefollowingbestexplainsground﹣breakingunderlinedinParagraph2? A.active B.talented C.creative D.awesome 2WhatdoweknowaboutProfessorStrickland'sachievement? A.Shecreatedthemostintenselaserpulsesbyherself. B.Sheadvocatedequalitybetweenmanandwomen. C.Shediscoveredthenucleiofatomswithherhusband. D.Sheinventedawayofusinglasersasaccuratecuttingtools. 3WhenwasthesecondNobelPrizeinphysicsawardedtowoman? A.in1963 B.in1985 C.in1903 D.in1958 4Whatcanbeinferredfromthestatementsinparagraph4? A.Woman'sachievementsinphysicsareasgreatasman's. B.Woman'sachievementsinphysicsaremoreandmorefantastic. C.Maria'sdiscoveriesresultedfromherlongtimeresearch. D.Genderdiscriminationstillexistsinthefieldofscienceresearch.
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MakingShortVideos Apictureisworthathousandwordsorsotheysay.Wellmotion运动picturescancontainevenmorememories.1Herearesomeappsyoucanusetomakeyourownshortvideos. Qupeiyin.cn RecitinglinesfrommoviesisaneffectiveandclassicwaytolearnEnglish.Sowhatifyoucoulddub配音recordingsaccompaniedbymovieclips剪辑andthensharethemwithfriends?2Younameit.Bycontributingyourvoiceyoucaneithermimic模仿theoriginalsoundtrackorcreatesomethingcompletelynewofyourown. Shorts 3WiththehelpoftheShortsappyoucanmakepicturesinyouralbumintoaslideshow.Choosefromanyoftheoff﹣the﹣shelfthemes﹣﹣﹣holidaytravelfriendshipandpartyforexample﹣eachmatchedwithitsownthememusicandslidebackground.Butifyou'renotsatisfiedwiththecombinationsfeelfreetodoalittlechangebyaddingtexttothepicturesorreplacingthemusicwithsomethinginyourownplaylist. VivaVideo Videomakingandeditingonceseemedawfullyhard.4Butthisappwilleaseyouintothefieldwithstraight﹣forwardfunctionsandcleardirectiontohelpyoucreateyourownvideostory.Apartfromfilterstickersandtextthecoolestpartofthisappisthatyoucanwritethenarrativesyourselfandaddyourownvoicetothevideo.5VivaVideorequiresarelativelypowerfulphonetorunsmoothly. A.Buthereisalittlereminder. B.That'swhyshortvideosarebecomingpopular. C.Theseappshaveavarietyofidentifications识别. D.ThisapphasmoviescartoonslecturesTVseries. E.Newbies网络新手andamateursdidn'tdaretoevengiveitatry. F.Videosandpicturesaren'tonlyforseparatepurposes. G.VideomakingandeditingiswhatApplefanswanttotry.
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Itwasthecultureratherthanthelanguagemadeithardforhimtoadapttothenewenvironmentabroad. A.where B.why C.that D.what
假定英语课上老师要求同桌之间交换修改作文请你修改同桌写的以下作文.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. 删减把多余的词用斜线\划掉. 修改在错词下面划一横线并在该词下面写出修改后的词. 注意1.每处错误及其修改均仅限一词 2.只允许修改10处多者从第11处起不计分. WhenIwasveryyoungmyparentsteachmethevalueofwritingthank﹣younotes.WhenevertheyaskedmetoIwouldrollmyeyesandwriteitafterbirthdaysandsomefestivalsunwilling.OnlyaftermygrandmotherpassedawayIrealizetheirimpact.MymomandIhadthetaskofcleanmygrandmother'shouse.IopenedadrawerinherbedsidetablewhichIfoundabeautifulwoodenbox.IopeneditbutwasshockedtoseeeverycardIhadeverwrittentoher.Theimpactofamomentstayedwithmeallmylife.WhenIhadchildrentheylearnedfromthevalueofwritingthank﹣younotesandstilldosoevenasgrownadult.
Howoftendoyouexercise?Anewstudyfoundthatmostkidsaged12to15weren'tgettingenoughphysicalactivity.Theresultswerebasedonabout800kids.Aspartofthestudythekidstrackedandreportedontheirownactivitylevelsandtookphysicalexams. U.S.fitnessguidelinessuggestanhourormoreofphysicalactivityeveryday.Accordingtothestudyonly1in4U.S.kidsgetenoughphysicalactivity. It'scertainlyworryingtoseethatourkidshavesuchalimitedamountofphysicalactivityeachdaysaidDr.StephenPont.Heisanexpertonchildren'shealth. Fewkidsinthestudymettheguidelinesonphysicalactivitythatraisestheheartrateandmakespeoplebreatheharder.Overallabout25%saidtheygotanhourofthatkindofexerciseeveryday.Kidsalsoreportedonwhichactivitiestheydidmostoftenoutsideofschoolgymclass﹣﹣basketballforboysandrunningforgirls. Thestudyfoundthatfatteenagerswerelessactivethannormal﹣weightgirlsandboys.Fatgirlswereslightlylessactivethannormal﹣weightgirlsbutlevelsweresimilaramongoverweightandnormal﹣weightboys.Thestudyalsosaidthatthepercentoffatchildrenaged2to19was17%orabout12.5millionkids. There'salwaysroomforimprovementsaidTalaFakhouriwhowastheleaderofthestudy.ShealsosaidtheresultsprovideusefulinformationtohelpwithfitnesscampaignssuchasLet'sMovewhichwasinitiatedbyMichelleObamain2010.ToinspirekidstoeatrightandgetinshapeMichellevisitsschoolsandholdsexerciseevents.Shealsocallsonschoolstoofferregulargymclasses. Thestudyalsofoundkidswhogetphysicaleducationatschoolmaygetbettergrades. 1Whatistheresultofthenewstudy? A.800kidsdon'tgetenoughphysicalactivity. B.MostU.S.kidsdon'tgetenoughexercise. C.Kidsshouldgetphysicalactivityeveryday. D.It'simportanttotakephysicalexams. 2Whichofthefollowingsportsdogirlslikebest? A.Swimming. B.Basketball. C.Running. D.Gym. 3What'sthepurposeofthecampaignLet'sMove? A.Tohelpkidstokeepfit. B.Toprovideusefulinformation. C.Toofferregulargymclasses. D.Toholdexerciseevents. 4Accordingtothestudychildrenwithenoughexercisemay. A.belessactivethanfatchildren B.bemorewillingtohelpothers C.dobetterintheirstudies D.trytheirbesttogetinshape
Beingphysicallyactivethreetimesaweekreducestheoddsofbeingdepressedbyabout16%accordingtonewUCLresearchcarriedoutaspartofthePublicHealthResearchCentre. ThestudypublishedinJAMAPsychiatryfoundatwo﹣wayrelationshipbetweendepressionandphysicalactivity.Peoplewhoincreasedtheirweeklyactivitywerereportedtohavefewerdepressivesymptomsbutthosewithmoredepressivesymptomswerelessactiveparticularlyatyoungerages. Researchersfollowed11135peoplebornin1958upuntiltheageof50recordingdepressivesymptomsandlevelsofphysicalactivityatregularintervalsinadulthood.Theyfoundthateachadditionalactivityperiodperweekreducedoddsofdepressionby6%.InEngland19%ofmenand26%ofwomenarecurrentlyclassedasinactiveandthisstudysuggeststhatactivitycouldsignificantlyimprovetheirmentalaswellasphysicalhealth. Assumingtheassociationiscausalphysicalactivityhasaprotectiveeffectagainstdepression.Ifanadultbetweenhistwentiesandfortieswhoisn'tphysicallyactivebecameactive3timesperweekhewouldreducehisrisksofdepressionbyabout16%saidDrSnehaloftheUCLInstituteofChildHealthleadauthorofthestudy. ProfessorMarkDirectorofthePublicHealthResearchCentresaidManypeoplearealreadyawareofthebenefitsofphysicalactivityontheirgeneralhealthbutnowweareseeingmoreevidencethatsuggestsitalsohasapositiveeffectonaperson'smentalwell﹣being.Thelatestresearchhighlightsjusthowimportantitistoensurethatpeopleareworkingandlivinginenvironmentsthatallowthemtobebothphysicallyactiveandmentallyhealthy. 1TheunderlinedwordoddsinParagraph1probablymeans. A.benefits B.intervals C.risks D.ages 2Accordingtothesecondparagraphifpeopleincreasetheirweeklyactivity. A.theirdepressivesymptomswillbefewer B.theirdepressivesymptomswillbemore C.theywillbecomemuchyounger D.theywillbecomemoredepressive 3WhichofthefollowingstatementsisTRUEaccordingtothepassage? A.DrSnehalthinksitisimportanttobebothphysicallyandmentallyhealthy. B.Theresearchshowsmenaremoreactiveinphysicalactivitythanwomen. C.Adultswhoinsistonphysicalactivitywillavoiddepressioncompletely. D.Increasingphysicalactivitycanfreepeoplefromdepressioninaway. 4Whatistheauthor'spurposeinwritingthepassage? A.Totellusafunstoryabouthowtoprotectusagainstdepression. B.Tointroducearesearchonthelinkbetweenphysicalactivityanddepression. C.Topersuadereaderstoincreasetheirweeklyactivity. D.Todescribethedisadvantagesofphysicalactivity.
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