句子里的“物品说明书”，which 来帮你一语搞定！
一、which 是干什么的？
在定语从句中，which 用来修饰物品、动物、抽象概念等非人名词。
它也可以在从句中作主语或宾语。
举个例子：
- I have a book. It is very interesting.
→ I have a book which is very interesting.
这个 which 就像“连接的桥梁”，让两个句子合成一个有层次的复合句。
二、常见用法解析
✅ which 作主语：
- The car which runs very fast belongs to my uncle.
✅ which 作宾语：
- I lost the pen which you gave me yesterday.
🌟 宾语时，which 可以省略：
- I lost the pen you gave me yesterday.（省略了 which）
三、例句练习：把两个句子合成一个
- She bought a dress. The dress is made of silk.
→ She bought a dress which is made of silk. - This is the movie. I told you about the movie.
→ This is the movie which I told you about.
📝 提醒：第二句中 which 在介词后，也可以写作：about which I told you（更书面）
四、错句分析
- ❌ I have a bag who is red.
✅ I have a bag which is red.
👉 who 是“人专用”，描述“物”要用 which！ - ❌ He gave me a gift which I like it.
✅ He gave me a gift which I like.
👉 which 已经做了宾语，不要再加 “it”。
五、写作提升小技巧
用 which 从句可以让你的句子更紧凑、内容更丰富。看下面的作文片段：
I live in a small town which has a beautiful river running through it.
I always carry a notebook which I use to record my ideas.
你看，是不是比用“分成两个句子”看起来更自然？
六、试一试：句子合并训练
- He bought a computer. The computer is very expensive.
→ ___________________________________________ - I visited a museum. It had many dinosaur bones.
→ ___________________________________________
七、小结时间
- which 是“非人名词”的好搭档；
- 它能当主语或宾语，宾语还能省略；
- 用 which 可以让句子表达变得更连贯！
掌握了 which 引导的定语从句，写起物品介绍再也不用怕“重复”和“啰嗦”。想快速巩固并灵活运用这些句型？来试试我们的 李校来啦英语智能训练系统，配套练习覆盖从识别到运用每一个句型要点，让你的语法真正“活”起来！
