He is the very man that I am looking for.

　　他正是我要找的人。

　　⑤当先行词既指人又指事物时。

　　Can you tell me the people and events that you saw in Britain?

　　你能告诉我你在英国见到的人和事吗？

　　⑥句子中出现which或who之类的词，为了避免重复，要用that。

　　Which of the books that had pictures was worth reading?

　　哪本有图画的书值得读呢？

　　(2)关系代词用which不用that的情况

　　①which可引导非限制性定语从句，that则不能。

　　He was late for class again, which made his teacher angry.

　　他上课又迟到了，这让他的老师很生气。

　　②which之前可以有介词；that之前则不能有介词。

　　I will never forget the year in which I worked there.

　　我永远不会忘记在那儿工作的那一年。

　　3．关系代词as引导的定语从句

　　as可以用作关系代词引导限制性定语从句时，主句部分往往出现such, as, so, the same，as在从句中可作主语、宾语、表语。

　　We do the same work as they (do)．

　　我们和他们干同样的活。

　　I have never seen such a clever man as he is.

　　我从来没见过像他那样聪明的人。

　　集中演练1

　　1－1.单句语法填空

　　①Nobody wants the house whose roof has fallen in.

　　②A letter that/which is written in pencil is difficult to read.

　　③He is not the same man as he was.

　　④The man who/that was here yesterday is a painter.

　　⑤He is the man who/whom I saw yesterday.

　　⑥I hope to get such a dictionary as he is using.

　　1－2.用关系代词that或which填空

　　⑦This is the house in which Lu Xun used to live.

　　⑧That is all that I want to say.

　　⑨The first place that they visited in Guilin was Elephant Trunk Hill.

⑩This is the best film that I have ever seen.