65. I wonder if you would do me a favor and tell the professor I've lost my voice so I can't attend this morning's class.

该句需要注意do me a favor的用法和lose my voice的意思。
do me a favor是请别人帮忙时的常用表达，常用在以下句子中。如：
1) Would you please do me a favor? 请问你能帮我个忙吗？
2) Who can do me a favor? 谁能帮我个忙呢？
与它含义相同的表达还有：
Would you please give me a hand? 帮我个忙好吗？
lose my voice的字面意思是“失去声音”，表示“嗓子哑了”。如：
I lose my voice because of the football match! 因为看足球比赛，喊得我嗓子都哑了。

考点归纳　

与lose one's voice类似的表达还有：
lose one's heart 失去勇气，气馁
lose one's temper 发脾气
lose one's appetite 没胃口，食欲减退
lose one's breath 喘不过气
lose one's way 迷路