Ⅰ. Quite 是程度副词，可修饰副词、形容词和动词。跟表程度的词连用时，有“相当”“非常”的意思;跟没有程度差别的词连用时，作“完全”讲。如：
① I feel quite well. 我觉得身体不很不错。
② I am quite tired. 我相当 累了。
③ We are not quite ready. 我们还没有完全准备好。
Ⅱ. Very 也是程度副词。“很;非常”可用来修饰形容词或副词。 如：
① This factory is very large.
② He runs very fast.
：very 不能直接修饰动词。如：
① I quite like her. = I like her very much
Ⅲ. Quite 与 very 有时可以通用。但在份量上very 比quite 重。试比较：
① His English is quite good.(= not bad)他的英语很不错。
② His English is very good. (= excellent)他的英语好极了。
Ⅳ. Quite & very 与不定冠词连用时位置不同。即依照：“a(n)+very+形容词+中心名词”和“quite + a(n) + 形容词 +中心词”的顺序排列。 如：
① Jimes was quite a small baby. Jimes是个小孩子。
② Jimes was a very small baby. Jimes 是个很小的孩子。
Ⅴ. Too “太、过分”含有超过容许的程度。带有否定的意味。
① It is too cold today. 今天太冷了。(含有不喜欢或不……)
② It was very cold yesterday. 昨天很冷。
：very 不能与too连用。不可以说：It’s very too cold.应将very 改为much或far.如：
① The cap is too big for me.