时间状语从句

时间状语从句 1．when，while和as when引导的从句的谓语动词既可是一个持续性动词，也可是非持续性动词；while引导的从句的谓语动词必须是持续性的，侧重主句动作和从句动作相对比；as引导的从句的谓语动词可以是持续性动词，也可以是非持续性动词，有“随着”之意，多用于主从句动作同时发生。 While the film ended, the people went back.(改错) I was wondering through the street _______ I caught sight of a tailor’s shop. ______ time goes on, it’s getting warmer and warmer. 2．as soon as，immediately，directly，the moment，the minute，no sooner...than，hardly/scarcely...when，once等引导的从句都示从句的动作一发生，主句的动作随即就发生，常译为“一……就……”。 No sooner had we arrived at the station _____ the train left. We had hardly arrived at the station ___ the train left. The boy burst into tears _______(immediate) he saw his mother. I want to see her a moment she arrive.(改错) 3．till，until和not(...)until till，until引导时间状语从句时，主句的谓语动词必须是延续性动词，主从句都为肯定式，意为“某动作一直延续到某一时间才停止”。not(...)until引导时间状语从句时，主句的谓语动词必须是非延续性动词，从句为肯定式，意为“直到……才……”。not(...)until还可以用于强调句和倒装句。 You may stay here_____ the rain stops. He won’t go to bed ________ she returns. It was not until you told me _____ I had any idea of it 4．before和since 若表达“没过……就，过了……才”之意时，须用连词before，句式为“It was/will be＋时间段＋before...”；it won’t be a long time before;  since意为“自从……”，句式为“It is/has been＋时间段＋since...”  主句现在完成时+since从句一般过去式。 把句子翻译成英语 再过半年我才能回来。_________________________________ 过不了多长时间我们就会再见面了。___________________________________ I ______________(write) home four times since I ______ (come)here. It is three years ________ the war broke out. 5．every time，each time，next time，the first time，any time等名词短语引导时间状语从句时，分别表示“每次……，每次……，下次……，第一次……，任何时候……”。 每次我处于困境，他就会来帮助我。___________________________________ 第一次我看见Jim 他正躺在床上。_____________________________________ 1. While—when, when, as 2. Than, when, immediately, a—the 3. Till/until, until, that 4. It will be half a year before I come back; It won’t be a long time before we meet again; have written, came; since 5. Every time I was in trouble, he would come to help me out; the first time I saw Jim, he was lying in bed.