Most cats remain suspicious of humans all their lives.

问题描述:

Most cats remain suspicious of humans all their lives.
改:Most cats are suspicious of human beings _______their lives.
A.during B.throughout

选择B
在时间方面,throughout是指贯穿一个时间段的整个时间,而during是指在一个时间段期间.如:throughout one's life(某人一生);during the Spring Festival(春节期间)指在一个时间段期间就不能用吗?
春节都可以为什么这个不可以?during 指在某段时间内,短时间

throughout 是贯穿的意思,强调整个期间