关于动词加ing的问题答:2、动词加ing的情况很多,be动词(is.am.are).介词后面加ing形式。还有固定的词组搭配要记住 某些动词后出现非限定性动词时只能用动名词作宾语,不能用不定式。常见的此类动词有:advise, allow, permit, avoid, consider, enjoy, finish, give up, cannot help, imagine, include, keep, keep on, mind, miss,...
现在完成时的所有知识,特别是短暂性动词与延续性动词,since 能不与短暂...答:过去时常用的非持续性动词有come, go, leave, start, die, finish, become, get married等。 举例: I saw this film yesterday. (强调看的动作发生过了。) I have seen this film. (强调对现在的影响,电影的内容已经知道了。) Why did you get up so early? (强调起床的动作已发生过了。) Who hasn...