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?

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?
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?

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.

something就是without 的宾语
we cannot possibly do without sth

如果多了个it 那么这个句子就有两个宾语,重复了
就如楼上所说的
按照你的分析something which we cannot possibly do （something） without it.
something .......without it
这里something就等于it..后面的it是多余的.
we cannot possib...

全部展开

如果多了个it 那么这个句子就有两个宾语,重复了
就如楼上所说的
按照你的分析something which we cannot possibly do （something） without it.
something .......without it
这里something就等于it..后面的it是多余的.
we cannot possibly do ____.这个同位语从句修饰的就是something
又如:
Water is something important we can not live without.
如果硬要用it,那么可以换成
Water is important,without it,we can not live.
若有错请指点

收起

句子中something指代 人类的基本需要（必需品） 所以后半句 正常应该是 we cannot do without these basic needs（即题中的something）. 意思是没有这些必需品 我们可能什么也做不了。 所以改写成定语从句应该是 something （that）we cannot possibly do without
希望对您有帮助...

全部展开

句子中something指代 人类的基本需要（必需品） 所以后半句 正常应该是 we cannot do without these basic needs（即题中的something）. 意思是没有这些必需品 我们可能什么也做不了。 所以改写成定语从句应该是 something （that）we cannot possibly do without
希望对您有帮助

收起

因为something是 without的宾语。 所以不需要it。

without是介词，后面加的是宾语。这里修饰的宾语是something，不需要再后面加it了。本来的意思就是。we cannot possibly do without something.