leave for 是出發(fā)至某處
如:He left for Beijing yesterday.
leave sth for sb 是把什么留給什么人
如：She left these flowers for you.
leave sb for sb 是離開什么人去和什么人在一起
如：He left his wife for a young lady.
leave sth to do sth 是指為做某事離開某處
如：He left her house to catch the last bus.
leave sb doing sth 是讓某人單獨(dú)做某事
如：Don't leave your children playing with fire.
瞬間動詞不能用進(jìn)行時,表示一種行為的結(jié)果,如come,go,marry,die等.如果能清楚的分清“come了”“還沒come”,“去了”“還沒去”,“結(jié)婚了”“還沒結(jié)”,“死了”“還沒死”,而沒有當(dāng)中的過渡,就是瞬間動詞.