（1）關系詞作主語時，從句中謂語的數(shù)。

（2）注意區(qū)別定語從句與強調句。

　?、俣ㄕZ從句中關系詞作從句成分，復合句。

　?、趶娬{it無意義，that / who不是引導詞。

　?、蹚娬{it is / was和that / who后如果句子意思講得通則是強調句，講不通則不是。

　　It is the museum that / which we visited last year.(定語從句)

　　It was in the hotel that we stayed last night.（強調句）

（3）定語從句與同位語從句的區(qū)別。

　?、俣ㄕZ從句引導詞被稱為關系詞，that充當主語、賓語、表語。有時可省略。

　?、谕徽Z從句引導詞被叫做連詞，that不能充當任何成分，不可省。

　　Word came that their army was defeated.(同位語)

　　We expressed to them our wish that was the same as their.(定語)

（4）關系詞在從句中省略的情況。

　?、訇P系詞作賓語，前無介詞時。

　?、陉P系詞作表語。

（5）限制性定語從句與非限制性定語從句的翻譯。

（6）關系詞前有介詞或復雜介詞，關系詞只能是which和whom。

（7）幾個特殊的定語從句句型：

　?、貶e is the only one of the students who has got very good marks in the match.（句中one為先行詞）

　　He is one of the students who have got good marks in the match.（句中students為先行詞）

　　②Is this place the one (that) we visited yesterday?

　　Is this the place(that / which)we visited yesterday ?

　?、跦e stood at the window, from where he could see what was happening.

　?、躀t may rain, in which case the match will be put off.