Withthedevelopmentofscienceandhumancivilization,manyformerlyunimaginablethingscomeintoreality.Someofthemhavepositiveeffectsonourlife,butsomearedistasteful.Thephenomenonof________(主题现象)isanexampleoftheformer/latterone.
Therearemanyfactorsthatmayaccountforit,andthefollowingarethemostconspicuousaspects.Tostartwith,__________________(原因1).Furthermore,______________________(原因2).Eventually,__________________________(原因3).
Goodas____________(主题现象)is,ithas,unfortunately,itsdisadvantages.Theapparentexampleisthat___________(缺点例子1).Inaddition,___________(缺点例子2).
Onthewhole,thephenomenonisoneoftheresultsoftheprogressofthemodernsociety.Thereisstillalongwayforustoimprove/eliminate__________(主题现象)andmakeourlifemorecomfortable.