something用作不定代词
1.表示“聊以自慰的事”、“有价值的事物”的意思。例：It’s something to have a job at all these days.
现在能找到一份工作就算不错了。
2.表示“某种令人不快的事情”。例：
There is something in the word.
好像要发生什么事情。
3.表示“一些吃的喝的东西”的意思。例：
A little something with his meals was an absolute necessity to him.
就餐时少许喝点酒对他来说是绝不可少的。
4.表示“实有之物”的意思。例：
Some people will never learn that you can’t get something for nothing.
有些人永远不懂人不能不劳而获的道理。
5.表示模糊的概念。例：
Our train gets in at two something.
我们的这班火车2点多到达。
something用作名词
1.相当于somebody,意为“重要的人物”。例：She thinks she’s something since she won the beauty contest.
选美比赛得了奖，她就自以为了不起了。
She acts as if she were something since she won the prize.
自从获奖以来她就表现得自命不凡了。
2.表示“重要的事物”。例：
These paintings were really something.
这些画确实出色。
I think you may have something there.
我认为在那方面你可能是有道理的。
3.表示“少量”、“一些”、“部分”。例：
It is customary to give something to the porter.
给搬行李的服务员一点儿赏钱是个惯例。
There is something of her mother in her smile.
她的微笑有几分像她母亲。
something用作副词
1.something用作副词，表示“几分”、“有点”、“稍微”、“大约”的意思。例：In something under half an hour there was a knock at the door.
过了半小时不到一些，听到一下叩门声。
2.something like表示“几分像”、“有点像”、“大约”的意思。例：
The building looks something like a church.
这栋建筑物看起来有点像教堂。