人口

UsuallyIwoulddosomeexercisesontheweekend，becauseIthoughtkeepinginagoodhealthcanhelpmestudywell.Lastweekend,ItwasrainningoutsidesoIdecidedtodosomeexercisesinthegym.WhenIwentintothegym,somepeopleweredoin...

许多国家在下一世纪将经历人口老龄化，由于出生率下降和死亡率。中国将很快加入他们的行列。据统计，中国人口老龄化，到下世纪中叶将接近高峰，超出60占总数的27。4％，年龄的人的百分比。这意味着，每四个人将老人。由于老龄化问...

Ilikemanykindsofsports,suchasswimming,running,table-tennisandbadminton.ButIlikerunningmost.Runningisagoodactivityforpeopletokeephealthyandrelievepressures.Besides,it’sveryeasyformetorunning.Icanrunin...

Ilikerunning,becauseIthinkit’safunnyandeasysport.Icandoitbymyself.IwasnotveryhealthywhenIwasalittlechild.Somyfathertookmerunningwithhim.Hesaidit’sgoodforme.Atfirst,Ididn’tlikeitatall.Butafterafewwe...

Physicalfitnessistoday"shottopic.Andeverywhereyouturnyouhearsomethingnew.Butisitalltrue?Themoreyousweat,themorefatyouburn.Thismythhasencouragedpeopletoworkoutinextremeheatorwearlayersofclothesorrubber...

Everyonehopestolivehappilyintheworld.Physicalexerciseisindispensabletoahappylife.Thereisafamoussaying:"Lifeliesonexercise."Althoughyouwillnotnecessarilydiewithoutregularphysicalexercises,they'IIce...

Astheformreflects,withtheBeijing20xxOlympicGames’drawingnearerandnearer,somepositivechangeshavetakenplace.Beforethat,eachweek,onlytwoso-calledPElessonswerescheduled,duringwhichsometimeswewereactually...

Inrecentyears,moreandmorepeoplesparenopainstojoininthebody-buildinggroup.Peoplebegintotakepartinvariousfitnessclubsorfitnesscentersintheirsparetime.Thisshowsbody-buildinghasbecomeanindispensablepartof...

Ilikemanykindsofsports,suchasswimming,running,table-tennisandbadminton.ButIlikerunningmost.Runningisagoodactivityforpeopletokeephealthyandrelievepressures.Besides,it’sveryeasyformetorunning.Icanrunin...

建设节约型社会是我们珍惜、节约资源时喊的一个口号。可是，又该怎样才能真正做到节约资源呢?为什么要大力推荐节约呢?下面请听听我的心声吧!先说水资源。我国水资源总量为2.8万亿立平方米左右，居世界第六位，人均占水量为...

Runningisawholebodymovement,whichenablesthebody'smusclesrhythmiccontractionandrelaxation,sothatmusclefiberDimensionincreased,proteincontentincreased.Fitandmuscularisoneofthesymbols.Skeletonisthebo...

SportsinourschoolhavechangedawehavemorethanthreeP.Eclassesaweek.Andwehaveatleastonehourtodoexerciseeveryday.Studentsgetsoexcitedatthesechanges.Moreandmorestudentstakeanactivepartintheballgame,running,...

It’sveryimportantforustodoexercise.Doingexercisecannotonlyhelpuskeepfit,butalsohelptotrainaperson’scharacter.What’smore,doingexercisehelpsustostudybetter.Wecandoexercisewheneverwewant.Itisgoodforus...

1987年7月11日，世界上第50亿个人出生在前南斯拉夫的萨格勒布。南斯拉夫的一个婴儿降生,被联合国象征性地认定为是地球上第50亿个人,并宣布地球人口突破50亿大关.联合国人口活动基金会(UNEPA)倡议这一天为"世界50亿人口...

1998年夏季，我国长江下游地区连续普降暴雨，洪水袭击了中国人口稠密、经济发达的地区。但暴雨并不是造成这次洪涝灾害的唯一原因。更多的是人为因素。这说明大自然已经对我们吹起了警号。大自然对我们警号长鸣的原因是什...

上周，我们组调查了一下新华街某栋楼里的居民情况。结果，发现了两个问题：1、男女比例失调。在我们调查的50户人家中，共有男：86人、女：67人，二者居然相差19人！我们原来以为差个八、九个人也就得了，没想到竟会相差这么多。男女比...

你如果要体会什么是沮丧，你就在春节前后到北京或广州的火车站去看看。一张张怆惶的脸在人群中涌动。你这时才知道了一个民族的伤口在哪里。刚分到国家计生委的研究生小Ｍ对几位作家这样描述。他工作的国家计生委在二十年...

Inthisplanyouwillbeexercisingforawholeweek.OnMondayyouwilldo10push-ups,10sit-ups,50skippingropes,andrun100meter.Youwillneedtorepeatthatforhalfanhourandrecordhowmanytimesyoudidthis.OnTuesdayandWednesda...

Physicalfitnessistoday'shottopic.Andeverywhereyouturnyouhearsomethingnew.Butisitalltrue?Themoreyousweat,themorefatyouburn.Thismythhasencouragedpeopletoworkoutinextremeheatorwearlayersofclothesorru...

人口红利是指一个国家的劳动年龄人口占中人口比重较大，抚养率较低，为经济发展提供了有力的人口条件，整个国家经济成高储蓄，高投资和高增长的局面。红利在很多情况下和债务是相对应的。因此在我们享受人口红利丰厚回报的时...

Forthousandsofyears,physicalactivityhasbeenassociatedwithhealth.Today,sciencehasconfirmedthelink,withoverwhelmingevidencethatpeoplewholeadactivelifestylesarelesslikelytodieearly,ortoexperiencemajorill...

Ilikemanykindsofsports,suchasswimming,running,table-tennisandbadminton.ButIlikerunningmost.Runningisagoodactivityforpeopletokeephealthyandrelievepressures.Besides,it’sveryeasyformetorunning.Icanrunin...

Astheformreflects,withtheBeijing20xxOlympicGames’drawingnearerandnearer,somepositivechangeshavetakenplace.Beforethat,eachweek,onlytwoso-calledPElessonswerescheduled,duringwhichsometimeswewereactually...

Ilikemanykindsofsports,suchasswimming,running,table-tennisandbadminton.ButIlikerunningmost.Runningisagoodactivityforpeopletokeephealthyandrelievepressures.Besides,it’sveryeasyformetorunning.Icanrunin...

Everyonehopestolivehappilyintheworld.Physicalexerciseisindispensabletoahappylife.Thereisafamoussaying:"Lifeliesonexercise."Althoughyouwillnotnecessarilydiewithoutregularphysicalexercises,they'IIce...