by the end, in the end , to the end & at the end 的区别与用法

问题描述:

by the end, in the end , to the end & at the end 的区别与用法

by the end,是指在最后的关头,最后一刻。
in the end ,是指在最后的那一段时间里。
to the end & at the end :都可以表示在最后,但是“to the end 可以单独使用,也就是用作短语”,而“at the end ”则不可以单独使用,但是后面若加上“of”只可使用。
如:To the end ,she went to school.
At the end of the year, he came home.

by the end到/在最后,表示到那时候,常常可以根据语境、时态看出.by...the end of后一般跟完成时态 如:By the end of 2170,people _will have established_cities and industries.He will have turned 30 by the end...