核心问题
The human ribs are capable to move so as to allow room for the lungs to expand during breathing.
请指出这个句子的毛病并加以分析。
词典解答
从结构上说,与 able 不同, capable 作表语时,其后应当跟 of sth. 或 of doing sth.,而不能跟 to do sth.。这是各类标准考试所经常考核的一个内容。
从语义上说,able 一般用于褒义,不用于贬义,而 capable 既可用于褒义,也可用于贬义。例如:
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The situation is capable of improvement. (ALD) 这情况可以改善。
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He's capable of any crime. (ALD) 他什么坏事都做得出来。
练习题
请做下面的英语试题：
Because he was greatly troubled by his conscience, Hamlet was incapable to kill the A B C D king. (TOEFL)