英语作文：The Problem of Human Populationx
更新时间:2022-09-29 02:40:02 阅读： 评论：0
英语作文:TheProblemofHumanPopulation
ithasbeenestimatedthatathousandyearsagotherewerelessthan400millionpeopleonearth.today,however,theworld'spopulationhasamountedto5,000million.whatiswor,itkeepsgrowingatasurprisingspeed.ifthistrendcontinues,theworld'spopulationwillshootupto7,000millionbytheyear.thisiswhatwecallpopulationexplosion.
therapiddevelopmentofscienceandtechnologyisthemaincauofpopulationexplosion.wecanethatthepopulationhasbeengrowingatatremendousspeedsincetheindustrialandagriculturerevolutionin1650,whichraidthepeople'sstandardofliving,andtheemergenceofmodernmedicinein1550,whichloweredthepeople'sdeathrate.
populationexplosionwillresultinalotofsuchproblemsasfoodshortage,housingshortageandunemployment.itistimethatweactedquicklytocarryoutthepolicyofbirthcontrolotherwi,man'ssurvivalontheearthwillbethreatened.
