【问】 请解释treat of与treat with的区别。

【答】 treat of是指“(书、论文)论述”、“讨论”：

1. The essay/lecture/book treats of the progress of cancer research. (ALD)

这篇文章(这演讲，这本书)论述的是癌症研究的进展情况。

2. The volume treated of both organic and inorganic chemistry. (Henderson)

本卷既讲述无机化学，也讲述有机化学。

treat with则作“与……谈判”解：

1. If we are to treat with you，it must be on equal terms. (ALD)

如果我们与你谈判，必须条件平等。

2. We have treated with three biggest firms in London. (Henderson)

我们已和伦敦三家最大的公司进行了谈判。

但是，切不可把此句型与句型treat sb. with a medicine，lotion或ointment相混淆：

1. She is being treated with penicillin. (Wood)

她正在接受青霉素治疗。

2. To prevent the wound from turning septic，treat it with this ointment. (Wood)

为防止伤口腐烂，要用这种药膏处置。

3. New timer should be treated with a preservative. (EED)

新的定时器应用防腐剂处理。