英语语法大全:Since - 用法详解及实例解析,英语语法中,"since"是一个重要的连接词,主要用于引导时间状语从句,表示“自从……以来”或“因为”。本文将深入探讨since的用法,结合实例让你更好地理解这个关键概念。无论你是初学者还是进阶者,这里都将为你揭示since的丰富内涵。
Since后面通常接一个过去的时间点,如具体的日期、星期几或过去的某一刻,构成完成时态。例如:
Ive lived in this city since 2005. (我自从2005年就住在这个城市。)
或者:
The concert started since they arrived at 7 PM. (音乐会从他们下午7点到达就开始了。)
当since后面跟一段时间,如"ago"、"before"等,常与现在完成时连用,表示动作从过去的某个时刻持续到现在。例如:
Ive been working here since I graduated from college. (我自从大学毕业就在这里工作了。)
Shes known him since they were kids, so they have a long history together. (她从小认识他,所以他们有很长的交往历史。)
Sometimes, "since" can be used to express a cause and effect relationship, like "since then" or "since that time".
Since then, he has become a successful entrepreneur. (从那时起,他就成为了一名成功的创业者。)
She hasnt talked to me since I told her the news. (自从我告诉她那个消息后,她就没再跟我说过话。)
In certain cases, when the main clause is in the past perfect tense, the "since" clause is often inverted:
Had it not rained since morning, we would have gone hiking. (如果早上就没有下雨,我们就去远足了。)
掌握since的正确使用是英语语法学习的重要部分。通过理解它的不同用法和搭配,你可以更自如地构建复杂的句子,表达时间的延续和因果关系。多加练习,让since成为你英语表达中的得力助手。