第65句：

I wounder 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.

六级词汇讲解:
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。

六级考点归纳:
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