分析句子结构,为什么不要it?

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/14 02:43:08

分析句子结构,为什么不要it?
When we speak of a basic human need we mean something which is necessary to life,something we cannot possibly do ____.
A.without B.without it
为什么选A?能分析下句子结构吗?

求解一道英语选择题,分析句子结构,为什么不要it?检举 | 59 分钟前凌无若 | 30 | 浏览次数：33次
When we speak of a basic human need we mean something which is necessary to life,something we cannot possibly do ____.
A.without B.without it
为什么选A?能分析下句子结构吗?
答：something you cannot do without.中something后跟的是一个定语从句,关系词that因为是作without 的宾语的,所以省略了.这里的do是不及物动词,意为"运行",“生活下去”.如：
We can do without a mobileh phone,but we can't do without food and water.
查一下词典吧：
do without (sb/sth)
(used esp with can and could 尤与can和could连用) manage without sb/sth 不用或没有某人[某事物]也行
He can't do without (the services of) a secretary.他不能没有秘书（的协助）.
If we can't afford a car,we'll just have to do without (one).我们要是买不起汽车,也就只好不用（汽车）了.
I could have done without being (ie I wish I hadn't been) woken up at 3 o'clock in the morning.其实用不着在清晨3点钟就把我叫醒吧.

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