宜用that 而不宜用which引导定语从句的情况

1) 当先行词是anything, everything, nothing, something, few, all, none, little, some 等不定代词时。
* Finally, the thief handed everything that he had stolen to the police. 最后，那个贼把他偷的所有东西都交给你警察。
* This is all that I want to say at the meeting. 这就是我在会上要说的。
* I have nothing that is worth reading. 　我没有什么值得一读的东西。
* Is there anything that I can do for you? 有什么我可以帮你的吗？
* Every car that has a high price is worth what it costs. 每辆高价的车都有它的价值。

2) 当先行词被序数词修饰的时候。
* You are the first person that I want to ask for. 你是我要见的第一个人。
* This is the second book that I have ever written. 这是我写的第二本书。

3）当先行词被形容词最高级修饰时。
* This is the most beautiful city that I've ever seen. 这是我见过的最漂亮的城市。
* The dinner was the most expensive meal (that) we had ever had. 那是我们吃过的最贵的晚餐。

4）当先行词被the very, the only, the same, the last 修饰时。
* This is the only painting in this style that we have. 这种风格的画我们仅有一幅。
* This is the very pen that I am looking for. 这正是我找的钢笔。
* You are the last person that I want to see. 你是我最不想见到的人。
* This is the same pen that I lost last week.这就是我上周丢失的那支钢笔。

5) 当先行词前面有who, which 等疑问代词时。
* Who that you have ever seen can beat him in chess? 你曾见过谁能在棋艺上打败他？
* Which is the book that you bought yesterday? 那本是你昨天买的书？

6）当先行词既有人，又有动物或者物体时。
* He talked happily of the writer and his books that interested him. 他兴高采烈地谈起让他感兴趣的作家以及作家的书。
* The professor and his achievement that I heard about are admired by them .我听说的那位教授和他的成就得到他们的赞美。