,使文章显得更具有条理性。像while的运用;ontheonehand;ontheotherhand使用正确。【话题写作2】Directions:positionentitledLimitingtheUseofDisposablePlasticBags.ordingtotheoutlinegivenbelowinChinese:1.一次性塑料袋曾被广泛使用:2.一次性塑料袋造成的危害;3.限制使用一次性塑料袋的意义。LimitingtheUseofDisposablePlasticBagsInthepast,agreatmanypeopleusedtousedisposableplasticbagsforshoppingandotherpurposes.However,theexcessiveuseofdisposableplasticbagshasledtogreatdamagesbothtoenvironmentandtopeople’shealth.Ontheonehand,ittakesabout20to1000yearsforaburiedplasticbagtobreakdownandbeabsorbedbythesoil.Ontheotherhand,theuseofdisposableplasticbagswillindirectlydoharmtopeople’shealth,whichislessknowntothepublic.Sometimespeoplebuyhotfoodpackedintodisposableplasticbagstosavethetimeandlaborinwashingtheirdiningutensils.Yettheyareeatingthepoisonousstuffwhileenjoyingthetastyfood.