状语从句修改稿.ppt

2. till, until和not…until小结： 1.until/till引导时间状语从句用于肯定句时，主句的动词是延续性动词，表示动作或状态一直持续到until/till所表示的时间，意为“某动作一直延续到某时间点才停止”。如： We waited until he came. 2．用于否定句时，主句谓语动词是非延续性动词，从句为肯定，意为“某动作直到某时间才开始”。如： He won’t go to bed till/until she returns. 3．till不可以置于句首，而until可以。如： Until you told me I had no idea of it. 4．not…until句型中的强调和倒装说法： It was not until you told me that I had any idea of it. Not until you told me did I have any idea of it. 在条件状语从句和结果状语从句中,表示与事 实相反的条件和结果。 1) 与现在事实相反： If 从句 …, 主句 +V原 2)与过去事实相反： If 从句had Ved ,主句 +have Ved 3)与将来事实相反： If 从句 …, 主句 +V原 In case he comes, let me know. You can go out, as / so long as you promise to be back before eleven. I will come again tomorrow provided (that) I have time. (= if) Supposing (that) it rains tomorrow, what shall we do? (= if) Unless you tell him yourself, he’ll lose faith in you completely. We’ll let you use the room on condition that / provided that you keep it clean and tidy. 1.John didn’t come to school _____ being ill yesterday. A.because of B.because C.since D.as 2.---Mum,can I go out to play football with jessica? ---No,you can’t ____ your homework is being done. A.before B.until C.as D.when 3.These two areas are similar______ they both have a high rainfall during this season. A.to that B.besides that C.in that D.except that 2．复合连词也可以引导原因状语从句，这些连词有：now (that), seeing (that), considering (that), for the reason that, by reason that, for fear that, that等，如： So that 引导结果状语从句表示实现的一件事或一个事实，从句谓语动词一般不和情态动词连用，且从句前多有逗号与主句分开。例如： He didn’t study hard, so that he failed in the exam.(他没有用功学习，结果考试没有通过。) He took no notice of him, so that he flew into a rage. （我没有理睬他，于是他愤怒起来。） Although 和though均可以引导主步状语从句，间为“虽然，尽管”但是although较though 正式，更多有于句首，二者昀不可以与but边用，但可以与副词yet, still, nevertheless等连用。 Although (though) he was ill, (sill/yet) he went on working. 1.There was never any time for Kate to feel lonely,____