知识感悟

　　一、词汇详解

　　1.mention v.提及，提到

　　n.提及，说起

　　【典型例句】

　　Nobody mentioned anything to me about it.

　　没人跟我提过这事儿。

　　You mentioned in your letter that you might be moving abroad.

　　你在信中谈到你可能要移居国外。

　　He made no mention of his work.

　　他根本没提他的工作。

　　【要点归纳】

　　mention "提及，提到，说起"，可作名词和动词，作动词时后可跟名词或从句作宾语。

　　【相关链接】

　　Don't mention it.为别人道谢时回答用语，意为"不客气"。

　　2.for sure 确实地，肯定地

　　【典型例句】

　　I think he left for America a year ago,but I can't say it for sure.

　　我想他一年前去了美国，但是我不敢肯定。

　　He will be here for sure within an hour.

　　他一个小时之内肯定到这儿。

　　【要点归纳】

　　for sure 是一种非正式的用法，常用在口语中，相当于for certain，指对某事很有把握。

　　【相关链接】

　　be sure of/about sth./doing sth.对(做)某事有把握

　　be sure+从句，对......有把握

　　be sure to do sth.一定,务必......

　　make sure of/about sth./doing sth.弄清楚，查明

　　it is (not) certain+从句　确定/不确定

　　make sure+从句，弄清楚，查明　

　　例如:We are sure of/about our success.

　　我们很有把握成功。

　　We are sure that our conclusion is in accordance with the facts.

　　我们相信我们的结论与事实相符。

　　He's sure to come tomorrow.

　　他明天一定会来。

　　Make sure of the time at which the train for Shanghai leaves.

　　查明开往上海的火车何时离开。

　　It isn't certain whether he will give us a report next monday.

　　下星期一他是否来为我们作报告还不能确定。

　　3.rely on/upon sb./sth.指望或依赖某人/某物

　　【典型例句】

　　The boy always relies on his sister to finish his homework.

这男孩总是依赖他的姐姐给他完成作业。