文档介绍：一 介词的含义及种类
：介词通常放在名词或代词之前。他不能单独充当句子成分，而必须跟其它的词连在一起，构成介词短语，才能在句中起句法作用。
2介词的种类：介词大致可分为简单介词和短语介词两大类。
简单介词（下面为较常见的）
in with behind below except against through
on without over by besides till past
at before across up into round near
of after along doun onto like outside
for about between during off under inside
to above among beside since throughout toward
短语介词（下面为较常见的）
out of next to at the foot of
in front of because of in charge of
by the side of except for at the back of
instead of opposite to at the top of
together with at the end of according to
Make some sentences using some words above
二．与 介词相关联的固定搭配
介词通常与动词、 形容词一起构成固定搭配，表示不同的意思。
1． 动词+介词
hear of look for laugh at
listen to depend on look after
talk about come from think about
+介词
be proud of be late for be interested in
be sure of be pleased with be famous for
be tired of be polite to be worried about
三 . 介词的用法
：on at in after before during
for in through within from since by