习惯上要用that引导的定语从句

习惯上要用that引导的定语从句

指事物时，在下列情况下，人们通常用that，而不用which。

1. 当先行词为不定代词时：当先行词是指物的all, little, few, much, any, anything, everything, nothing, none, the one时，或先行词被all, little, few, much, any, every, no等修饰时，通常用that。如：

All [Everything] that can be done must be done. 凡能做的事都必须做。

There was little that the enemy could do but surrender. 敌人无法,只有投降了。

2. 当涉及序数词或最高级时：当先行词是序数词或最高级形容词时，或者先行词被序数词(包括last, next)、最高级形容词及the only, the very等修饰时，通常用that。如：

This is the best dictionary that I’ve ever used. 这是我用过的最好的词典。

The first thing that you should do is to work out a plan. 你应该做的第一件事是订个计划。

3. 当涉及the very, the only, the same时：当先行词有the very, the only, the same 等修饰时，通常用that。如：

This is the only example that I know. 我知道的例子只有这一个。

Those are the very words that he used. 那是他的原话。

3. 当先行词包括人和物时：此时通常用that。如：

They talked about the persons and things that most impressed them. 他们谈论了使他们印象最深的人和事。