试题出自试卷《中央美术学院2012年考博英语真题》

问题1选项
A.As old he is
B.Old as he is
C.However he is old
D.Though old is he

B

【选项释义】
A. As old he is B. Old as he is
C. However he is old D. Though old is he
【考查点】让步状语从句
【解题思路】当as引导的让步状语从句位于句首时，句子必须用倒装句式，其结构是：形容词+as+主语+动词。B选项符合此结构，故选项B正确。
【干扰项排除】
A选项As old he is不是倒装句式；
C选项However引导让步状语从句置于句首时需要倒装，即However old he is；
D选项Though引导让步状语从句不倒装的语序是Though he is old；如果倒装则是Old though he is；
以上均不符合题意，故排除。
【句意】虽然老教授已经老了，但他仍在实验室里夜以继日地努力工作。