:高中英语句型归纳

高中英语句型归纳

1. be doing/ be about to do/ had done…, when…(when：这时, 强调一个动作的突然发生)

1). I was walking along the river, when I heard a drowning boy cry for help.

2). I was about to leave when it began to rain.

3). I had just finished my test paper when the bell rang, announcing the exam was over.

2. It was (not ) + 时间段+before +一般过去时      过了一段时间就……..

  It will (not )be+ 时间段+before +一般现在时     要过一段时间才会…

  It is/ has been +时间段+ since…..

  It was +点时间+ when…..

  It was +时间状语+ that …..（强调句）

1). It was not long before he sensed the danger of the position.不久他就意识到他处境危险（动作已发生）

2). It will be half a year before you graduate from the school.  还有半年你才从这个学校毕业（动作未发生）

3). It is 3 years since he worked here.=he left here.（since从句中的谓语动词若是延续性动词，要从这个动作结束的时候算起）

4). It was 3 o’clock when they received the telephone.

5)  It was at