[法]谈到，说到，说及；

• 是 talk of 还是 a lot of
  是 talk of 还是 a lot of
  请看下面的这道题，是考查 talk of 还是考查 a lot of？
  We’ve talked a lot __________ cars. What __________ trains?
  A. of, of B. of, about C. about, of D. about, about
  此题应选 D。容易误选A，B(尤其是误选B)。后面一空填介词 about, 这比较好理解，但第一空很容易受 a lot of 这一短语的影响，而误选A，B。
  假若第一空填介词of, 从而构成 a lot of, 很显然句中的a lot of cars 应该是动词 talked 的宾语，然而事实上动词 talk 是一个不及物动词，所以这种分析是不成立的。
  此题第一空应填about, 其原因是：句中的 a lot是修饰动词 talked 的状语，talk about才是一个动词短语。 全句意为：我们对汽车已谈了不少，现在谈谈火车怎么样?
  请做以下各题(注意所填的介词到底是与哪个词搭配)。如：
  1

mention/refer to/speak of/talk of/hear of/tell of
记忆：
1. mention [ 5menFEn ] vt. 提及, 说起 The headmaster mentioned the good deed you did yesterday in his report. 校长在他的报告里提到了你昨天做的好事。
2. refer to 查阅, 提到, 谈到 Only when you can’t figure out the meaning of the new word can you refer to a dictionary. 只有当你不能推测出生词的意思时你才能去查词典。
3. speak of 谈及, 说到 Speaking of fruits, I wonder whether you like pineapples. 谈到水果，我想知道你是否喜欢菠萝。
4. talk of 谈及, 说到 We talked of your great achievements in chemistry. 我们说到了你在化学方面的巨大成就。
5. hear of 听说 Never have I heard of such an absurd story. 我从未听说如此荒唐的事。
6. tell of 讲述 The teacher told us of the intense situation across the straits. 老师给我们讲到了海峡两岸的严峻形势。
另类阅读：
--Have you heard of Mr. Green? It’s said that he referred to you as a hero yesterday.
-- Don’t mention him. Speaking of Mr. Green, I find myself upset. He often talks of himself more than anyone else.