摘要： already一般用于肯定名.也可用于预料能得到肯定回答的疑问句中.表示某事已发生,yet一般用于否定句或疑问句中位于句末.意为“还.已经 ,still一般用于肯定句.也可用于疑问句.意为“仍然.还 .Eg: I have already read the book./ We haven’t made speeches yet./ Is my skirt dry yet?/ I still hope to get some advice from you on my studies. 11. faily.rather.quite A．三者都可以修饰形容词和副词.都有“相当 的意思.但failry词义最弱.quite稍强.rather最强.Fairly一般表示肯定.褒义.rather有时表示否定.贬义.It is fairly cool today. It is rather cold today. B.quite和rather可以修饰动词.而fairly不能. I don’t quite understand what you said./ I rather like the song. 12. so.neither.nor so可用在“so+助动词+主语 的倒装结构中.表示“也 .位置在助动词前.so的这种用法只能在肯定句里,在否定句中用neither或nor.结构相同.表示“也不 . He has seen the film. So have I . Jim doesn’t like the novel. Neither (Nor) does Linda. 13. ago, before A “时间段+ago 表示从现在往前推算的“一段时间以前 .而“时间段+before 表示从过去某时刻再往前推算的“一段时间以前 .因此.前者常与一般过去时连用.后者常与过去完成时连用.He bought a violin a week ago. From his letter I knew that he had bought a violin a week before B before可表示不确定的过去.而ago则不能: Have you been there before? 14. 像afraid, alive, awake, asleep, alone以“a 开头的形容词.一般不能用very修饰. 15. deep与deeply都可作副词.但意义不同:deep指的是深浅的“深 .如:dig deep.Deeply的意思是“涂地.深刻地.深厚地 .有引申含义.如:We are deeply moved by his deeds. 16. not是副词.不能直接修饰名词.no是形容词.能位于名词前作定语.有时no=not any.如: I have no brothers=I have no any brothers

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