doingsth作状语的分类☆一般来说,-ing形式表示主动、进行;过去分词表示被动、完成。☆-ing形式作状语,可以表示时间、原因、结果、条件、让步、行为方式、伴随状况等。如:▲doingsth.作时间状语:﹡Seeingmyparentswavinginthecrowd,Iwentrunningtothem.﹡Crossingtheroad,theoldmanwasknockedoverbyacar.=Whenhewascrossingtheroad,theoldmanwasknockedoverbyacar.﹡(When)Hearingthenews,hegotfrightened.=Whenheheardthenew...