time n. 时间;次数;时代
in time 及时
on time 准时
at a time 一次
at one time 曾经
once upon a time 从前
from time to time 不时的
at times 有时
all the time 一直,总是
take your time 别着急,慢慢来
at the same time 同时
in no time 很快地
at no time 绝不
(1) the first time 引导的状语从句
I thought her nice and honest the first time I met her.
(2) (the) next time 引导的状语从句
The harvest will have been got (the) next time you come.
(3) the last time 引导的状语从句
What was the name of the hotel he had stayed the last time he was in Cairo?
(4) each time/every time 引导的状语从句
Every time you get back at night, you drop your shoes on the floor.
(5) It is/was the first/last/second time ＋从句（完成时态）
This is the first time I have been here .teacheray.com
It was the second time someone had interrupted me that evening.
(6) It is high time that sb. did (should do) sth. 该……的时候了。
It is high time that we went to the classroom.
(7) by (the end of )/by (the time of) +过去时间或动作，主句中谓语动词用过去完成时。（+现在时间或动作用现完，+将来时间或动作用将完）
The experiment had been finished by 4 o’clock yesterday afternoon.