Question

请问下面这个英文句子中的the price at which Gross sold the worms to worm farmers 是一个什么从句？

the price at which Gross sold the worms to worm farmers was ten times in excess of the ture market vaule .

Answer 1

限制性定语从句，后面的从句是修饰 the price 的，从句的真正语序是 Gross sold the worms to worm farmers at the price ,意思为Gross以这个价格把蛆卖给养蛆的农民。而at the price 这个介词短语在从句中是充当状语成分。

Answer 2

先分析句子的主干the price at which Gross sold the worms to worm farmers 为主语 因为真正的谓语动词为was 而at which Gross sold the worms to worm farmers 又是price的定语 ，所以为一个定语从句 ，at which 相当于where

Answer 3

定语从句，修饰限定the price.

追问

at 做什么成分？

追答

at 是与price搭配使用的，which在这儿相当于price ，介词短语做主语成分。