（1）关系词作主语时，从句中谓语的数。

（2）注意区别定语从句与强调句。

　　①定语从句中关系词作从句成分，复合句。

　　②强调it无意义，that / who不是引导词。

　　③强调it is / was和that / who后如果句子意思讲得通则是强调句，讲不通则不是。

　　It is the museum that / which we visited last year.(定语从句)

　　It was in the hotel that we stayed last night.（强调句）

（3）定语从句与同位语从句的区别。

　　①定语从句引导词被称为关系词，that充当主语、宾语、表语。有时可省略。

　　②同位语从句引导词被叫做连词，that不能充当任何成分，不可省。

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

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

（4）关系词在从句中省略的情况。

　　①关系词作宾语，前无介词时。

　　②关系词作表语。

（5）限制性定语从句与非限制性定语从句的翻译。

（6）关系词前有介词或复杂介词，关系词只能是which和whom。

（7）几个特殊的定语从句句型：

　　①He is the only one of the students who has got very good marks in the match.（句中one为先行词）

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

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

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

　　③He stood at the window, from where he could see what was happening.

　　④It may rain, in which case the match will be put off.