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32018全国1Accordingtoareviewofevidenceinamedicaljournal,runnerslivethreeyears61(long)thannon-runners.Youdon'thavetorunfastorforlong62(see)thebenefit.Youmaydrink,smokebeoverweightandstillreduceyourriskof63(die)earlybyrunning.Whilerunningregularlycan'tmakeyouliveforever,thereviewsaysit64(be)moreeffectiveatlengtheninglife65walking,cyclingorswimming.Twooftheauthorsofthereviewalsomadeastudypublishedin201466showedamerefiveto10minutesadayofrunningreducedtheriskofheartdiseaseandearlydeathsfromall67(cause).Thebestexerciseisonethatyouenjoyandwilldo.Butotherwise…it'sprobablyrunning.Toavoidkneepain,youcanrunonsoftsurfaces,doexercisesto68(strength)yourlegmuscles(肌肉),avoidhillsandgetgoodrunningshoes.Runningischeap,easyandit'salways69(energy).Ifyouaretimepoor,youneedrunforonlyhalfthetimetogetthesamebenefitsasothersports,soperhapsweshouldallgive70atry.2018全国2DietshavechangedinChina—andsotoohasitstopcrop.Since2011,thecountry61（grow）morecornthanrice.Cornproductionhasjumpednearly125percentover62past25years,whilericehasincreasedonly7percent.Atasteformeatis63(actual)behindthechange:Animportantpartofitscornisusedtofeedchickens,pigs,andcattle.Anotherreasonforcorn’srise:Thegovernmentencouragesfarmerstogrowcorninsteadofrice64(improve)waterquality.Cornuseslesswater65riceandcreateslessfertilizer(化肥)runoff.Thisswitchhasdecreased66(pollute)inthecountry’smajorlakesandreservoirsandmadedrinkingwatersaferforpeople.AccordingtotheWorldBank,Chinaaccountsforabout30percentoftotal67(globe)fertilizerconsumption.TheChineseMinistryofAgriculturefindsthatbetween2005—whenthegovernment68(start)asoil-testingprogram69givesspecificfertilizerrecommendationstofarmers—and2011,fertilizerusedroppedby7.7milliontons.Thatpreventedtheemission(排放)of51.8milliontonsofcarbondioxide.China’sapproachtoprotectingitsenvironmentwhile70(feed)itscitizens＂offersusefullessonsforagricultureandfoodpolicymakersworldwide.＂saysthebank’sJuergenVoegele.2017全国2In1863thefirstundergroundpassengerrailwayintheworldopenedinLondon.Itranforjustundersevenkilometersandallowedpeopletoavoidterrible61(crowd)ontheroadsaboveastheytravelledtoand62work.Ittookthreeyearstocompleteandwasbuiltusinganinterestingmethod.Thisincludeddigginguptheroad,63(lay)thetrackandthenbuildingastrongroofover64top.Whenallthosehadbeendone,theroadsurfacewasreplaced.Steamengines65(use)topullthecarriagesanditmusthavebeen66(fair)unpleasantforthepassengers,withallthesmokeandnoise.However,therailwayquicklyprovedtobeagreatsuccessandwithinsixmonths,morethan25,000peoplewereusing67everyday.Later,engineers68(manage)toconstructrailwaysinasystemofdeeptunnels(隧道）,whichbecameknowntothetube.Thisdevelopmentwasonlypossiblewiththe69(introduce)ofelectric-poweredenginesandlifts.ThecentralLondonRailwaywasoneofthemost70(success)ofthesenewlines,andwasopenedin1900.Ithadwhite-paintedtunnelsandbrightredcarriages,andprovedextremely1popularwiththepublic.2016全国2Ifyoufeelstressedbyresponsibilitiesatwork,youshouldtakeastepbackandidentify(识别)thoseof41(great)andlessimportance.Then,handlethemostimportanttasksfirstsoyou’llfeelarealsenseof42(achieve).Leavingthelessimportantthingsuntiltomorrow43(be)oftenacceptable.Mostofusaremorefocused44ourtasksinthemorningthanwearelaterintheday.So,getanearlystartandtrytobeasproductive45possiblebeforelunch.Thiswillgiveyoutheconfidenceyouneedtogetyouthroughtheafternoonandgohomefeelingaccomplished.Recent46(study)showthatwearefarmoreproductiveatworkifwetakeshortbreaks47(regular).Giveyourbodyandbrainarestbysteppingoutsidefor48while,exercising,ordongsomethingyouenjoy.Ifyoufindsomethingyoulovedoingoutsideoftheoffice,you’llbelesslikely49(bring)yourworkhome.Itcouldbeanything-gardening,cooking,music,sports—butwhateveritis,50(make)sureit’sarelieffromdailystressratherthananotherthingtoworryabout.2017全国1Therehasbeenarecenttrendinthefoodserviceindustrytowardlowerfatcontentandlesssalt.Thistrend,whichwasstartedbythemedicalcommunity（医学界）61amethodoffightingheartdisease,hashadsomeunintendedside62(effect)suchasoverweightandheartdisease—theverythingthemedicalcommunitywastryingtofight.Fatandsaltareveryimportantpartsofadiet.Theyarerequired63(process)thefoodthatweeat,torecoverfrominjuryandforseveralotherbodilyfunctions.Whenfatandsalt64(remove)fromfood,thefoodtastesasifismissingsomething.As65result,peoplewilleatmorefoodtotrytomakeupforthatsomethingmissing.Even66(bad),theamountoffastfoodthatpeopleeatgoesup.Fastfood67(be)fulloffatandsalt;by68(eat)morefastfoodpeoplewillgetmoresaltandfatthantheyneedintheirdiet.Havingenoughfatandsaltinyourmealswillreducetheurgetosnack(吃点心)betweenmealsandwillimprovethetasteofyourfood.However,be69(care)nottogotoextremes.Likeanything,itispossibletohavetoomuchofboth,70isnotgoodforthehealth.2016全国1Chengduhasdozensofnewmillionaires,Asia’sbiggestbuilding,andfancynewhotels.Butfortouristslikeme,pandasareitstop61_(attract).Soitwasagreathonourtobeinvitedbackstageatthenot-for-profitPandaBase,whereticketmoneyhelpspayforresearch,I62_（allow）togetupclosetothesecuteanimalsatthe600-acrecentre.Fromtomorrow,IwillbetheirUKambassador.Thetitlewill