求助Manhattan语法P98的一道练习题

inferno19

Unaccustomed to the rigors of college life, James's grades dropped.

解释：Unaccustomed to... college lifo: INCORRECT.    As a noun modifier, the past participle unaccustomed modi- fies the noun phrase James's grades. However, the author of the sentence obviously intends for unaccustomed to modify James himsel£ If we wish to begin the sentence with the noun modifier, we must rephrase the sentence to make James the subject.


改正后的句子：Unaccustomed    to the rigors of college life, James allowed his grades to drop.


题目简单易懂，但是它的这个改正后的句子的意思对吗？ Allowed his grades to drop??
我觉得Unaccustomed to the rigors of college life表示的是James无力控制他的grades