2016年高考英语常用句型(3)

　　句型7
　　…before…特殊用法(1)"没来得及……就……"
　　[例句]
　　The roof fell before he had time to dash into the room to save his baby.
　　他还没有来得及冲进房间救孩子，房顶就塌了。
　　He ran off before I could stop him. 我还没有来得及阻止，他已经跑了。
　　To my great disappointment, my favorite singer left the concert before I could have a word with her.
　　让我非常失望的是，我还没有来得及和我最喜欢的歌手打招呼，她就已经离开了。
　　句型8
　　…before…特殊用法(2)"过了多久才……"或"动作进行到什么程度才……"
　　[例句]
　　They walked about fifty miles to the west before they saw a village.
　　他们西行50英里才看到一个村庄。
　　The workers worked day and night about three days before everything returned to normal.
　　工人们连续工作3天才使一切恢复正常。
　　He almost knocked me down before he knew it.
　　他几乎撞到我了才意识到。
　　We had walked a long way before we found some water.
　　我们走了很长的路才找到一点水。
　　Five years went by before I knew it. 不知不觉，五年过去了。
　　句型9
　　It was + 时间段+before…."过了多久才(怎么样)……"
　　It was not long before…."不久，就……"
　　It will (not) be +时间段+before…."要过多久(不久)……才……"(before从句谓语动词要用一般时态)
　　[例句]
　　It was not long before he sensed the danger of the position.不久他就意识到他处境的危险。
　　It was five days before he came back. 五天后他才回来。
　　It will be half a year before you graduate from the school. 再过半年你才能毕业。
　　It will not be long before they understand each other. 他们大概不久就会互相了解。