英语对大约三分之一怎么提问

“英语对大约三分之一”进行提问的方式：

What proportion is approximately one third?

Approximately one third of what?

How much is approximately one third?

Is approximately one third a large or small portion?

　　例如，如果是在讨论某个群体中某种特征的占比，可能会问：“What proportion of the group is approximately one third?” （这个群体中大约三分之一的比例是指什么？）

　　又或者在描述物品的数量时，会问：“How many of the items are approximately one third?” （这些物品中大约三分之一有多少？）