【題目】 ________ is known to us all is that the old worker, for _______ life was hard in the past, still

works hard in his seventies.

A. As; whom B. What; whose

C. It; whose D. What; whom

【答案】D

【解析】

試題分析：名詞性從句和非限制性定語(yǔ)從句為本題主要考查點(diǎn)。As引導(dǎo)非限制性定語(yǔ)從句放句首時(shí)，后常有逗號(hào)與主句分開(kāi)，is known to us all后無(wú)逗號(hào)，排除A；it作形式主語(yǔ)的句型是it is known to us all that...，句中that前有is，排除C；主語(yǔ)從句缺少主語(yǔ)，用what，構(gòu)成what ... is that...句型。非限制性定語(yǔ)從句中的life是主語(yǔ)，即life was hard for the old worker。用whose的話，for whose life是介詞短語(yǔ)，從句缺少主語(yǔ)。故選D。

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