Unit 3 Buying and SellingGrammar :Adverbial Clauses 榆中九中 _____ 李锦江 1.Adverb Clauses of Time: （时间状语从句） when, while, as, before, after, since, until, as soon as, every time, each time, the moment, by the time… I.when1)When he comes here tomorrow,I will call you. (at the time that)2)Henry is in charge of the office when Mr.Smith is away. (during the time that) II.while 1)While he was walking in the street, he met Tim. ( 分词短语） While walking in the street,he met Tim. Walking in the street ,he met Tom. 2)He learned to speak English while he was here. 3)I like tea while she likes coffee. III. as ( 一边 ... 一边 , 随着） 1)As they were picking tea,the girls were singing happily. 2) She sang as she worked.IV. Before1)It won’t be long before he finishes his writing. V. After1)After he (had) finished his work,he left there.He (had) finished his work before he left here.After finishing his work,he left here. Having finished his work,he left here. VI. since (from the time that) 1)I have known him ever since he was a boy. 2)I have worked here since I graduated from the university.*3)It is (has been)two years since he came here. VII. until (till) (up to the time that)1)He will not go to bed until(till) his mother comes.2)Until she told me, I had no idea of what they had said.3)It is not until his mother comes home that he will go to bed.( 强调结构） VIII .as soon as1)As soon as she got home,she began to cook.On getting home,she began to cook. *IX. every time,each time,the moment 1)Every time/each time I catch a cold,I have pain in my back. 2)There was an applause the moment (as soon as) she appeared on the stage. X. by the time 1)By the time he arrived,the train h...
