摘要
通过例句讲解了until的用法,辨析了until与till、before的异同,并列举了高中英语和大学英语部分课文及习题中的例句。
By setting examples of sentences, this essay explains systematically the usage of until, distinguishes among until, till and before, and lists some of the sentences and exercises in Senior English and College English books.
关键词
否定句
延续性动词
终止性动词
negative sentences
continuous verbs
terminative verbs
