精选优质文档-倾情为你奉上现在进行时态专项练习1.定 义:现在进行时表示正在发生或进行的动作。2.标志词:(1) 时间状语 now 、at the moment (2) 句前有提示词look 、listen 、look at 3.谓语动词的构成:be +动词-ing4.动词-ing的构成规则规 则原 形-ing形式一般在动词原形末尾加-ingwash catch watch washing catching watching 以不发音字母e 结尾的动词,先去掉e,再加-ingmake take ride making taking riding 以重读闭音节(辅元辅)结尾的动词,双写末尾辅音,再加-ingsit put get sitting putting getting 以ie 结尾的动词,先把ie变成y 再加-inglie tie die lying tying dying 注意: see-seeing