【病句诊断】
The business absorbs him.
他专心经商。
【辨析讲解】
句中有个很重要的动词：absorb。用它表示“被......吸引”“专注于......”的意思时，习惯上是用被动语态，即be absorbed in这个结构，主语是人，介词in后面是物。注意了是介词in，而不是by。
【诊断结果】
He is absorbed in business.
【举一反三】
He was absorbed in a novel.
他专心致志在看一本小说。
The writer was absorbed in his writing that he forgot to flick the ashes from his cigar.
作家全神贯注地写作，忘了弹去雪茄烟的烟灰。