本题的考比较,根据语法笔记,在比较当中
对只有主谓(如果主语有定语成分,必须要that/those来指代),没有宾语的句子,因为没有宾语, 只可能有主语比较,因而不需要重复do来确认这是一个可发出动作的主语,所以其比较形式如下: I eat faster than you.注意与下句区别 I eat apple faster than you do 如果写成 I eat apple faster than you 按GMAC的理解,从语法上就变成我吃苹果比吃你快,成了宾语比较。逻辑上显然不通。
Plants are more efficient at acquiring carbon than are fungi, in the form of carbon dioxide, and converting it to energy-rich sugars. A. Plants are more efficient at acquiring carbon than are fungi, B. Plants are more efficient at acquiring carbon than fungi, C. Plants are more efficient than fungi at acquiring carbon, D. Plants, more efficient than fungi at acquiring carbon,E. Plants acquire carbon more efficiently than fungi,
题目中,A的缺点如下: 比较对象不同,因为本文中比较的主语,plants和fungi,因而不需要重复be来确认这是一个可发出动作的主语 因此用are错误 B中plant are more efficient at acquiring 和fungi比较对象不对称
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