That the brain, once__oxygen,dies has been proved.A)depriving of B)deprived ofC)being deprived D)deprived这题为什么选B啊?

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That the brain, once__oxygen,dies has been proved.A)depriving of B)deprived ofC)being deprived D)deprived这题为什么选B啊?
That the brain, once__oxygen,dies has been proved.
A)depriving of B)deprived of
C)being deprived D)deprived
这题为什么选B啊?

That the brain, once__oxygen,dies has been proved.A)depriving of B)deprived ofC)being deprived D)deprived这题为什么选B啊?
这道题确实有点难度的,楼主必须明白这句话的主干部分应该是(That the braindies) has been proved. that在这里引导的是主语从句,不过在英语里很少这样用的,一般当主语是一句话的话要用it做形式主语的这句话就变为It has been proved that the brain, once__oxygen,dies.好,句子结构分析清楚了,现在就看 主语从句部分That the brain,( once__oxygen),dies 括号中的成分在句子中做的是条件状语 完整的句子应该是once the brain is deprived of 一旦大脑中的氧被掠夺(也就是大脑缺氧).当从句的主语和主句的主语一致,而且从句中又be动词,这时候the brain is 就可以省略掉的,楼主应该明白了吧,不明白hi我哦

deprive of是固定搭配,表示剥夺……
在根据句意,大脑缺氧,肯定是外界环境造成的被动缺氧,所以用deprived,过去分词表示被动。