rest
1.rest统指“休息”，a rest是“一次休息”，rests是“多次休息”。take rest和take his（或my等）rest通常作“就寝”解，take a rest和have a rest作“休息”解。go to rest（就寝）不及go to bed普通。
2.the rest（其余部分）被当作单数或复数，要看所指的什么而定。例如：I have read a large part of the book, the rest is more difficult. 和I have about a hundred books, sixty-seven are in Chinese and the rest are in English.
