一般认为形容词+ly就变成了副词,如形容词quick
加上-ly变成副词quickly。但是象friendly , lovely 虽然以 ly 结尾,但实则是形容词,She is friendly to me (她对我很友好。)
already 和 yet :
Where is Tom? He hasn't come yet. But Jack is already here . 这句话中又是 already,又有yet,是怎么回事吗?原来already和yet意思虽然相同,但用法有点小区别。表示事情早已发生或提前发生用 already,一般放于句中,用于肯定句和疑问句。含有already的肯定句,变为否定句时,要将already 变为yet,且放在句尾。yet表示预料要发生的事未发生,位于句尾,一般用于否定句和疑问句中。
hard 和 hardly:
hard,hardly 两者虽然只有-ly之差,意义却大不相同。hard表示"辛苦,使劲,努力,而hardly为否定副词,表示"几乎不"。
ago 和 before:
ago 不能单独使用,应与three days (months , weeks)等连用, 而且和动词的过去时连用。
如: I met my neighbour an hour ago. Before 之前有"一段时间"时,指"距这段时间以前",和过去完成时连用。如:He said he had finished the work two days before.(他说他两天前已完成了工作。) 如果before单独使用,是泛指"以前",常常和完成时连用。如:I have seen the film before.(我以前没看过这部电影。)
farther 和 further:
far 有两种比较级,farther,further. 在英语中两者都可指距离。如: He runs farther than she does.(他比她跑得远。)在美语中,farther 表示距离,further表示进一步。 如: I have nothing further to say.(我没什么要说的了。)
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