定义：表示现在或当前一段时间正在进行的动作。am1.一般情况下直接加ing;训练集中营写出下列动词的分词形式talk_______sleep________watch_______sit________listen________make________laugh________lie________cry________sing________cut________write________时间状语动词适当形式填空实际大练兵PracticePractice3.They____asmallgardennow.A.arebuildsB.isbuildsC.arebuildingD.isbuilding4.He_____tobedat10everyevening.A.isgoingB.isgoesC.goesD.going5.Look!Thetwins_____newsweaters.A.arewearingB.wearingC.arewearD.iswearing