
在英语中,that 和 which 都用于引导定语从句,但使用规则不同。以下是它们的核心区别和用法总结:
1. 用that的情况
作用:引导 限制性定语从句(从句内容必不可少,去掉后句意不完整)。
特点:
- 不用逗号隔开
- 可指代 人或物
- 常用于口语和非正式文体
例句:
- “The book that you lent me is great.”
(你借我的那本书很棒。→ 特指“你借的”那本,不是其他书) - “She is the only person that understands me.”
(她是唯一理解我的人。→ 强调“唯一”)
必须用 that 的情况:
✅ 先行词是 all, everything, nothing, the only… 等绝对性词汇时:
“All that glitters is not gold.”(发光的未必都是金子。)
✅ 先行词既有人又有物时:
“We talked about the people and places that we visited.”
2. 用which的情况
作用:引导 非限制性定语从句(从句补充额外信息,去掉后句意仍完整)。
特点:
- 必须用逗号隔开
- 仅指代 物或动物(不能指人)
- 更正式,多用于书面语
例句:
- “My laptop, which I bought last year, just broke.”
(我的笔记本电脑——去年买的——刚刚坏了。→ “去年买的”是补充信息) - “The movie, which won an Oscar, is streaming now.”
(那部电影,曾获奥斯卡奖,正在流媒体播放。)
必须用 which 的情况:
✅ 非限制性从句中(有逗号):
“The Eiffel Tower, which is in Paris, is iconic.”
✅ 介词后(固定搭配):
“This is the house in which I grew up.”(正式)
(口语中更常用:“This is the house that I grew up in.”)
满足以下条件which可以引导限定性定语从句:
– 先行词是物或动物(不能是人)
– 从句内容为必要信息(删除后影响句意)
– 一般不加逗号与主句分隔
The book which/that you recommended is sold out.
3. 对比场景
|
例句 |
解析 |
|
“The car that was stolen was found.” |
限制性从句,特指“被偷的”那辆车 |
|
“The car, which was stolen, was found.” |
非限制性从句,补充说明车的状态 |
4. 常见错误纠正
❌ “My dog, that is brown, loves to run.”
✅ 改为 which(非限制性从句,需逗号+which)
❌ “Everything which happens has a reason.”
✅ 改为 that(everything 后必须用 that)
速记口诀
“That 限定不能少,which 逗号补充妙;
人或物用 that,仅物用 which 要记牢。”
总结:
- 无逗号 + 关键信息 → that
- 有逗号 + 额外信息 → which
- 特殊情况(如 all/the only/人和物并列)强制用 that
- 人和物并列满足条件that/which可互换
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