a little（少的）表示肯定意义，修饰不可数名词，如 a little love(一点儿爱)

a few（一些）表示肯定意义，修饰的是可数名词 如 a few apples(一些苹果)

【 注意这时如果用there be 句型be动词要用复数形式】如 there are a few apples

little (少的)否定意义，修饰不可数名词 如 little love（没多少爱）

few(一些)否定意义，修饰可数名词 如 few apples(没多少苹果)

【 注意这时如果用there be 句型be动词要用单数形式】如 there is few apples

a bit（有点）修饰形容词 如 a bit far(有点远) 修饰形容词时在肯定句中用法和a little一样

【注意否定时区别 not a bit = not at all一点儿也不， 毫不 not a little = much不是一点儿， 非常】

a bit of（一点）后面加不可数名词

a little bit (有几分 有点儿)是固定词组 常加形容词比较级 a little bit longer(再长一点点)

补充

a few, a little, a bit的用法：

a few译作“几个”，a little, a bit译作“有点儿”。它们具有名词、形容词或副词的特点，在句中可充当主语、宾语、定语或状语。

1.名词性词组：a few代替复数名词，a little, a bit代替不可数名词。如 My answers are wrong. Tell me a few. / There is no milk in my glass, give me a little (= a bit), please.

2.形容词性词组：a few修饰复数名词，a little修饰不可数名词，a bit加上of后修饰不可数名词。如 a few dictionaries / a little water (= a bit of water)

3.副词性词组：a little, a bit可修饰形容词、副词的原级或比较级。 a few不可。 如 I’m a little (= a bit) cold. / He is a little (= a bit) taller than Tom.

注：(1) a bit还可写成a little bit，a bit of还可写成a little bit of

(2) few, little前不加a时：

a. 通常表示否定含义，译作“几乎没有”。如 He made few mistakes. (注：few后仍接复数名词) / There is little coffee here, is there?

b. 在有些词组中，few前也不加a，却不表示否定含义。 如 every few weeks (“每隔几周”), another few books (“另几本书”)

(3)当few, little, bit前有quite, just, only时，必须加a。quite a few译作“许多的”，等于many，quite a little / bit也译作“许多的”，等于much。just a few / little / bit译作“就一点儿”，only a few / little / bit译作“仅仅一点儿”。

(4)当few, little, bit后有more时，必须加a。a few more译作“另/再几个”，a little / bit more译作“另/再一点儿”。如 I want a few more bananas. / Give me a little more fruit.

(5)否定时，not a little译作“很、非常”(即“不是一点点”)，相当于very或very much； not a bit译作“一点儿也不”，相当于not at all。如 She isn’t a little angry. (“她很生气”) / She isn’t a bit angry. (“她一点儿也不生气”)

(6) few还有“少的”意思。如 This school has fewer classes.

little还有“小的”意思。如 She’s a little girl.

a few /few +名词复数，a little /little +不可数名词，a few /a little 表肯定，（一点/一些）， few / little 表否定（几乎没有） a little +不可数名词= a bit of + 不可数名词，a little +形容词=a bit +形容词