高考英语必背句型：before的特殊用法

　…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。