a spring morning与one spring morning有何区别

问题描述

a spring morning 与 one spring morning 有何区别？比如下面一句，是用 a 还是 one：

It was ______ spring morning, and two strangers came to this village.

老师答疑

曾老师：

这里不是侧重数量，而是泛指“一个春天的早晨”，所以空白处填a而不填one，主语it指时间，表语a spring morning说明时间。又如：

It was a cold, black night.那是一个寒冷而漆黑的夜晚。《简明英汉词典》

The sun was out again, and it was a glorious day. 太阳又出来了，这是个艳阳天。《柯林斯高阶英汉双解学习词典》

▲如果该短语用作状语，既可以用one也可以用a，但one spring morning前不用介词，而a spring morning前须用介词on。如：

One spring day the school arranged a picnic. 有一年春天，学校安排了一次郊游。《简明英汉词典》

These clothes should be put out to air on a sunny day. 这些衣服好天儿要拿出去晒晒。《现代汉英综合大词典》