2024届高三上学期英语一轮复习状语从句课件

状语从句 一、时间状语从句 1.When 与while 的区别：when 从句可以是短暂也可以使延续动词。而while只能用延续性动词，译为“在某段时间里，在---期间” 如：When I arrived , the train had already left. When you read a book, you'd better make notes. I’ll look after the dog while you are away. (不用you leave) b. When 的熟词生意： ***既然：Why do you find a new job when you have had a well-paid job？ *** 如果，倘若 To pay to see movies seems foolish when you can watch on TV for free. ①…was/were doing…when…（正在做… ②..was/were about to do…when（刚要做..突然） ③…was/were on the point of doing…when… (刚要做…突然) ④…had just done…when….(刚一…就) ⑤Hardly/Scarcely had…done…when…(刚一…就) *** ---此时，届时--- （5个句型） 2.While 与when 的区别 while 的熟词生意： ***1> 侧重对比 = whereas He likes pop music while I am fond of folk music. ***2>放句首：虽然、尽管 While it is a best-seller, It’s not very interesting. 3. till (until) 和not…till (until) till (until):主句动词时延续性，常用肯定形式,意思是“到…为止" 如：He remained there till/until she arrived. not…till (until)…: 主句动词是短暂性动词，常用否定式，意思是“直到…才” 如：She won’t go to bed till/until he returns home. not…until还有强调式和倒装式： 强调句： It is not until he returns home that she will go to bed. 倒装句：Not until he returns home will she go to bed. 4.As 一边---一边---；当---时候；表示随着短暂性动作的发生，另一动作伴随发生 They talked as they walked along the river.他们沿着河边走边谈 My cap was blown away as I stood up. *** As time goes by/ As the days goes by with time going by 5.before 1>①.Before I could get in a word, the tailor had measured me. (还没来得及就) ②We hadn’t run a mile before he felt tired.(还没…就) ③.We had sailed 4 days before we saw land.(…才…) ④.Please write it down before you forget it.(趁还…没就) 2> It was/will be +一段时间+before ... It was two years before... 过了两年才... It was not two years before... 不到两年就... It will be two years before...还得两年才... It will not be two years before... 用不了两年就会... 6.Since (ever since,强调 since, 翻译为：自那以后一直） I haven’t gone to Beijing since I graduated (连词） I have been living in this town since 1998. (介词） We haven’t seen each other ever since. (副词） 句型： It is/has been 5 years sinc