apairof后面的名词能加s吗（热点词汇apairof）

a pair of 一类词做主语是谓语动词单复的选择，以及它后面的指代词的单复数选择是个难点，现在对其用法进行解析：

1. a pair of 名词复数，表示一对，一双，一条，一副某某东西时，指物时在句子中作主语时其谓语动词一般要用单数形式，如：

A pair of glasses costs quite a lot these days.

现时一副眼镜值很多钱。

This pair of jeans was too small for him.

这条牛仔裤他穿太小了。

Perhaps the most unusual feature in the room is an extraordinary pair of candles.

也许，这间屋子最与众不同之处就是一对非同寻常的蜡烛。

Another of his lucky finds was a pair of candle-holders

他的另一个幸运发现是一对烛台。

《柯林斯高阶英汉双解学习词典》

A pair of oxen, yoked together, was used.

把两头牛用轭套在一起使唤。

《牛津高阶英汉双解词典》

Under his arm was a pair of shoes which he had bought from the shop a few days previously. 他胳膊下夹着一双几天前从商店买来的鞋。《英语常见问题解答大词典》2005版P1039

但也有例外：

On the mantelpiece are a pair of bronze Ming vases.

壁炉台上是一对明代的青铜花瓶。

《柯林斯高阶英汉双解学习词典》

This pair of shoes are shapeable.

这双鞋的样子很好看。《汉英大词典》

2. a pair of ...,pairs of ... 指物时在句子中作主语时的动词在数上与 pair 一致，而指代它们的代词以及定语从句中的谓语动词则一般用复数形式：

This pair of socks is too small,I cannot wear them.

这双袜子太小了，我不能穿。

This is a new pair of shoes for you. Do you like them ? 这是给你的一双新鞋。你喜欢吗？

This pair of shoes was rather expensive,but I like them. 虽说这双鞋很贵，但我喜欢。He wore a pair of earphones,which were plugged into a tape-record.

他戴着一副耳机，耳机连在录音机上。《英语常见问题解答大词典》

3.当a pair （of） 人的名词复数时，其谓语动词通常用复数，但是有时也可以用单数：

A pair of teenage boys were smoking cigarettes.两个十来岁的男孩正在吸烟。《柯林斯高阶英汉双解学习词典》

The happy pair is /are going to Spain after their wedding.

这对幸福的新婚夫妇在婚礼后将去西班牙。

She hung around with a pair of nurses who were openly gay.

她总和两个公开承认自己是同性恋的护士泡在一块儿。

《柯林斯高阶英汉双解学习词典》

We need an extra pair of hands if we're going to finish on time.

要想按时完成任务，我们就要再增加一个人。