a little bit 只能修饰形容词,后一般接不可数名词单数
a little bit和a bit修饰形容词原级或比较级,译为“有点”
a bit；To a small degree; somewhat:稍微；有点：
另外,1）a bit在肯定句中修饰动词、形容词、副词和比较级,表示"一点儿"的意思.例如:
The speaker spoke up a bit/a little so as to make himself heard more clearly.
演讲者把嗓门提高了一点儿,以便使别人听得更清楚.
2)a bit的否定句即not a bit相当于"not at all"(一点儿都不)
She is not a bit tired.(=She is not tired at all.)她一点都不累.
“kind of”可以看作一个普通的副词,意思是：to some (great or small) extent 有点儿,有一些.
同义词为：rather,kinda,sort of.
它后面可以接动词,形容词.其用法与一般的副词没什么不同.
kind of后接单数和复数名词都对.
如：This kind of book=this kind of books
其后的谓语动词的单复数要根据kind of,如果Kind不加s,其谓语动词就用第三人称单数.
All kinds of后接名词复数,其后谓语动词接复数.