请英语高手帮我点评我的这篇英语四级作文,

1：人们为什么认为淡水资源取之不尽

2：什么原因导致淡水资源

3：如何解决全球淡水紧缺问题

GlobalShortageOfFreshWater

Manypeoplethinkthatfreshwaterinourearthisnotusedup.Theyholdthisopinionbecausetherainwater,wellwater,riverwaterinourearthisabundant.Inaddition,withthedevelopmentofscience.Peoplecanusesomeequipmentstomaketheseawaterturntofreshwater.

Actually,thedepositoffreshwaterinourworldisveryshort.Thefollowingarethereasonsfortheaboveidea.First,alargenumberofpeopleliveinourearthandtheyneedtodrinkallthetime.Second,withthedevelopmentofindustry,agreatquantityoffreshwaterareusedtoproduce.Furthermore,mostpeoplehaven'tawarenesstoprotectourfreshwaterandalwayswasteit.

Inordertosolvetheproblemofglobalshortageoffreshwater,weshouldtakesomemeasuretomakeit.Tobeginwith,everycountrymustmakealawtolimittheindustrialwastewaterthrowedintotheriversarbitrary.Moreover,weshouldformhaveagoodhabitofprotectingfreshwater.