2020版一轮复习英语新课改·外研版学案:专题十 并列句与状语从句 Word版含解析
2020版一轮复习英语新课改·外研版学案:专题十 并列句与状语从句 Word版含解析第3页

  我正在看书时,他进来了。

  The students sang as they walked.

  学生们边走边唱。

  As a young man (= When he was a young man), he was fond of hunting.

  他年轻时喜欢打猎。

  (2)before与since引导的时间状语从句

  ①before与since的常用句式

连词 词义 常用句式 before 在......之前,还未......就......;......才......;趁......,还没来得及...... (1)It will (not) be+一段时间+before ..."(没有)过......(时间)才(就)......"

(2) It was not long before ..."不久......就......"

(3) It was+时间段+before ..."过了......(时间)才......" since 自从......以来 It is/has been+一段时间+since ...(从句用一般过去时)   

  It will be half a year before I come back.

  我半年之后才回来。

  It won't be long before we meet again.

  用不了多久我们就会再见面。

  It was three days before he came back.

  三天后他才回来。

  ②since引导的从句如果用非延续性动词,所表示的是自从句谓语动作算起;若用延续性动词或状态动词,所表示的就是自动作或状态的完成或结束时算起。

  It's two years since we arrived here.

  我们到这儿两年了。

  It's three years since we lived here.

  我们不住在这里有三年了。

  (3)表示"一......就......"含义的词(短语)引导的时间状语从句

  ①引导时间状语从句,且表示"一......就......"含义的词或短语有as soon as, the moment, the minute, immediately, directly, hardly/scarcely ... when/before, no sooner ... than ...等。

  Directly you feel any pains, you must go to the doctor.

  你一感觉疼痛就必须去找医生。

We will leave the minute you are ready.