四级语法：定语从句精讲（2）

一、定语从句中作宾语的关系代词可以省略，如果关联代词在定语从句中作宾语能够省略。四级语法例如：

This is the book ( which ) you were looking for yesterday .

这就是你昨天找的那本书。

I don't like the novel ( that ) you are reading. 

我不喜好你看的这本小说。

Who is the man ( whom ) you're talking about ? 

你们念叨的那个人是谁？ 内容来自

二、定语从句中，关系代词的单复数取决于先行词的单复数的四级语法讲解。例如：

Those who are in their forties are required to have a physical examination this afternoon .

（先行词Those是复数，关系代词who也就看作是复数，所以从句的谓语动词就用了复数形式are了。）请那些年事在四十多少岁的人于今天下战书去进行体检。 CopyRight .com

This is the magazine which was sent to me by post .

（先行词the magazine是单数，关系代词which也就看作是单数，所以从句的谓语动词就用了单数情势was sent） 这是通过邮局寄给我的杂志。

三、关系代词that 跟which的差异 CopyRight .com

that 跟which在一般情形都可以用于代替"表示事物意思"的先行词，在从句中作主语、宾语。但在下列情况下个别只用that而不必which 的四级语法：CopyRight .com

-- 先行词本身是all , everything , something , nothing , anything等不定代词时，例如：

Anything that can burn is a source of heat energy .

任何可能焚烧的东西都是热能源。 

There must be something that happened to you .你一定出了什么事。 CopyRight .com

They had nothing that could cure of his disease .他们不一点能治愈他疾病的东西了。

-- 先行词已有序数词或形容词的最高级或the last, the only等作定语时 ，四级语法例句如：

This is the most impressive TV theater that has never been put on show before . 这是以前从未上演过的最有感染力的电视剧。

That is the only way that leads to your success .那是通向你成功的唯一之路。

We have to consider the first thing that starts our work .

咱们必须要考虑启动咱们工作的第一件事。

然而，在下列情况下却只用which而不用that：

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