.中学英语介词的分类及用法I介词分类：1简单介词about, across, after, against, among, around, at, below, beyond, during, in, on2合成介词inside, into, onto, out of, outside, throughout, upon, within, without3短语介词according to, because of, instead of, up to, due to, owing to, thanks to4双重介词from among, from behind, from under, till after, in between 5分词转化成的介词considering(就而论), including6形容词转化成的介词like, unlike, near, next, oppositeII. 常用介词区别：1表示时间的in, on, atat表示片刻的时间，in表示一段的时间
