In my opinion, everyone has periods in their lives _______ everything seems very

题型：不详难度：来源：

In my opinion, everyone has periods in their lives _______ everything seems very hard.

A．when

B．where

C．which

D．that

答案

A

解析

试题分析：句意：依我看，每个人在他们的一生中都有一段时间似乎过得很艰难。这里是定语从句，先行词是periods，when在从句中作状语，故选A。
点评：本题难度适中。定语从句是英语语法中非常重要的内容，在阅读和理解过程中起着极其重要的作用。定语从句的考查关键在于定语从句的成分分析，需要考生有分析理解复杂的句子结构的能力。这里考生误选B，提醒考生先行词要判断正确。
即学即练：Put the food_______dog can"t come at it.
A. when             B. where            C. which            D. that
解析：B。句意：把食物放在狗够不到的地方。