不要死记，要去理解。
第一个和最后一个一定要大写
中间的不用大写的有冠词、短介词和连词，和不定式中的to
长介词without alongside underneath等要大写
其他名词动词等都要大写
实词首字母大写，虚词则小写如果单词字母数超过7的，都大写
1）简单介词：about, across, after, against, among, around, at, before, behind, below, beside, but, by, down, during, for, from, in, of, on, over, near, round, since, to, under, up, with等等。
2）合成介词：inside, into, outside, throughout, upon, without, within
3）短语介词：according to, along with, apart from, because of, in front of, in spite of, instead of, owing to, up to, with reguard to
4）分词介词：considering, reguarding, including, concerning
你看，这么多记得过来吗？还是要理解为什么，才能以不变应万变