is known to us all that the old scientist.for life was hard in the past.still works hard in his eighties．( )A．It, whomB．As,whoseC．As,whomD．It,whose 题目和参考答案——青夏教育精英家教网—

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2．______ is known to us all that the old scientist，for ______ life was hard in the past，still works hard in his eighties．（　　）

A．

It； whom

B．

As；whose

C．

As；whom

D．

It；whose

分析众所周知，这位年老的科学家，过去他的生活很艰难，在他八十多岁时仍然努力工作．

解答答案：A 考查it的用法．第一空：it is known to us all that…是个固定句型，意为"众所周知…"．第二空：介词+关系代词引导的定语从句，先行词the old scientist指人，作介词for的宾语，只能用whom，故选A．

点评考查it用法，弄清楚it的各种用法，准确地翻译句子，然后根据句意，选择最合适的答案．

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