want的主语为第一人称，而wants的主语为第三人称。
want 英 [wɒnt] 美 [wɔ:nt; wɔnt]
vt. 需要；希望；应该；缺少 n. 需要；缺乏；贫困；必需品 vi. 需要；缺少
例句：
Tell me which ones you want. 告诉我哪些是你需要的。
I want you to undertake all the arrangements. 我希望你来负责全面安排工作。
The parents want their child to skip to the second grade. 这家父母希望他们孩子能跳级到二年级。
I want all you children to finish up your dinners. 我希望你们孩子们每人把你们自己的饭菜吃光。
I want a distinct answer to my question. 我要求对我的问题作出明确的答复。
If you want to get that job, you should posh yourself up a bit. 如果你想得到那份工作，你应该稍微打扮一下。
What I want is exactly this one. 我要的就是这一个。
Those children want to be level with adults. 那些孩子要与大人们平起平坐。
Better get going on that book if you want to finish it in a month. 如果你想一月内完成那本书，最好现在就动手工作。
All nations want peace. 各国人民都要和平。
wants 是第三人称单数形式 第三人称一般是 he she it 单个人名如 tom lily sam.. 单个亲戚 uncle aunt sister ...
I want to play ball.
She wants to sing.
弟弟看得到不？