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一、Since 时间状语从句所表达的意义1.在 since 时间状语从句中,谓语如用了延续性动词的一般过去时,其表达的含义恰好和动词的词义相反,具有否定的意味。例如:Since we owned a car,we have gone camping everyvear.自从我们没有汽车后,年年去野营。I haven’t heard from him since he lived/was inBeijing.自从他离开北京,我没有收到过他的来信。2.Since 从句中,谓语如用了短暂性动词的一般过去时或延续性动词的现在完成时,句子的意思和动词的词义相一致.具有肯定的含义。例如:It has rained a great deal since you left.你离开后下了好些雨。I haven’t got any letter from him since he began tolive in London.自从他住在伦敦后,我就没有接到过他的来信。
First, since the time adverbial clause express the meaning of 1. In the time adverbial clause, the predicate, such as the use of the continuation of the verb in the past, the meaning of the expression and verbs just the opposite meaning, with a negative meaning. For example: Since we owned a car, we have gone camping everyvear. Since we did not have a car, go camping year after year. I have not heard from him since he lived / was inBeijing. I have not received any letters from him since he left Beijing. 2.Since clauses, predicates such as the use of transient verbs General past or continuation of the verb is now completed, the meaning of the sentence and the verb meaning consistent with a positive meaning. For example: It has rained a great deal since you left. I have not got any letter from him since he began tolive in London. Since he lived in London, I have not received any letters from him.