by the time 特殊用法

来源：学生作业帮编辑：神马作文网作业帮分类：英语作业时间：2024/11/18 16:01:42

by the time 特殊用法
一般情况下.是从句用过去时,主句用过去完成时
came,had started
或
从句用一般现在时,主句用一般将来时或将来完成时
By the time the Olympic Games start,we will have finished/ finish the construction
这个我明白..
可我的这个句子应该怎么解释呢.
By the time california elected to become the thirty _first federal state of the USA in 1850,it was already a multicultural society.

前半句少谓语,By the time California was elected to ...society.其实这个句子有两种理解方式,有人认为 by the time在此相当于一个连词,引导时间状语从句,还有人认为by the time就是一个介宾短语,was elected...是省略了引导词 that（代替when）的定语从句.我比较倾向于后者,按一般规则讲,“by the time...+主句”中,从句用一般过去时,主句用过去完成时,但这种情况下主句谓语动词多为行为动词,但是像be动词这样的表示状态的动词时可以用一般过去时的.这个用法与“It was+时间段+since从句（一般过去时）”的用法一样.主句谓语be用一般过去时.

by the time 特殊用法 by the time 用法 By the time的用法 by the time 的用法 by the time的用法. by the time 的意思和用法. by the time 的具体用法! by the time 是否等于when by the time 的用法 the first time,for the first time,by the first time用法区别 by the time的具体用法与 by the end的具体用法 by the time和 as soon as的用法 by the time 的用法请指教能切中要害