not a bit與not a little同義嗎

請看下面兩個句子，not a bit與not a little同義嗎？

a. After such a long walk in such hot weather he was not __________ tired.

b. We are not __________ tired. Of course we can go on with the work.

A. a bit, a little                   B. a little, a bit                    C. a bit, a bit                  D. a little, a little

此題應選B。關于這個問題考生要注意兩點。如：

1. 在肯定句中，a bit 和 a little 有時可換用。如：

He is a bit [=a little] tired. 他有點累了。

It is a bit [=a little] hot. 有點熱。

2. 但是在否定句中，兩者的意思幾乎相反。如：

not a bit 表示“一點也不”(=not at all)

not a little 表示“很”、“非常”(=very)

(1) a. The book is not a bit interesting. 這本書一 點也沒有趣。

  b. The book is not a little interesting. 這本書 很有趣。

(2) a. This kind of car is not a bit expensive. 這 種汽車一點也不貴。

  b. This kind of car is not a little expensive. 這種汽車很貴。

(3) a. He was not a bit surprised when he heard the news. 他聽到這個消息時，一點也不驚奇。

  b. He was not a little surprised when he heard the news. 他聽到這個消息時，十分驚奇。