2016高考英语一轮课件优化复习（山东专用）人教版必修二《UNITS 3～5》

　　必修二　UNITS 3～5 1．as，though，although引导让步状语从句 Although/Though I’m young，I already know what career I want to follow.→Young as/though I am， 句型公式妙笔生花 I already know what career I want to follow.我虽然年轻，但我已经明白我应该追求什么样的事业。 Although he tried，he couldn’t solve the problem.→Try as he might，he couldn’t solve the problem. 尽管他努力了，但是他没有解决问题。 2．...before“没来得及……就……” 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，我还没来得及和我最喜欢的歌手打招呼，她就已经离开了。 3．...before...“过了多久才……”或“动作进行到什么程度才……” 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。 4．It was＋时间段＋before...“过了多久才……”/It was not long before...“不久就……” 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。 5．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) It will be half a year before you graduate from the school.再过半年你才能毕业。