TodayI'dliketotalkaboutinternet.Ibelieveeveryonesittinghereknowsinternetalot,andsomeofyouareontheinternetalltheday.Internethaschangeourlifedramatically.Nowdyas,weuseinternettohelpwithourwork,tocommunicatewithourfriends,tosearchforinformation,toshoponline,andtodoinnumerousotherthings.SomanythingswecandoontheinternetthatIthinkmostofpeopleherecannotlivewithoutitnow.However,asitbringssignificantconveniencetoourdailylife,what'sthedisadvantagesithas?ThefirstthingI'dliketomention,isitsharmtoourhealth.Why?Becausethankstointernet,wecanmanagetodomanythingsbysimplystaringatthescreenandclickingthemouse,which,eventually,isverylikelytoresultinbadeyesightandobesity.Inotherwords,Internetisstealingourexcercisetime!Notonlythis?Oh,my,theradioactiveemissionfromthedevicesusedforsufferingonlinecouldactuallycauseyoucancer?!Inaddition,alotofcomputervirusesarehiddenafteralotoflinksonthewebsites.Becareful!Controlyourcuriosity!Otherwise,it'dbeluckyifyouonlyspendhundredsofdollarsinfixingyourcomputerandjustlosingsomedatasinyourhardware.So,foryourhealthconcern,keepofftheinternetafterusingitforawhile.

　　Anyway,thoughsometimestheinternetmaysoundalittlescary,it'sstillaveryusefultool.Youjustneedtolearnhowtouseitwisely.Thanks!