（1）關(guān)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(qiáng)調(diào)句。

　?、俣ㄕZ從句中關(guān)系詞作從句成分，復(fù)合句。

　　②強(qiáng)調(diào)it無意義，that / who不是引導(dǎo)詞。

　　③強(qiáng)調(diào)it is / was和that / who后如果句子意思講得通則是強(qiáng)調(diào)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(qiáng)調(diào)句）

（3）定語從句與同位語從句的區(qū)別。

　?、俣ㄕZ從句引導(dǎo)詞被稱為關(guān)系詞，that充當(dāng)主語、賓語、表語。有時可省略。

　?、谕徽Z從句引導(dǎo)詞被叫做連詞，that不能充當(dāng)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(guān)系詞在從句中省略的情況。

　?、訇P(guān)系詞作賓語，前無介詞時。

　　②關(guān)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(guān)系詞前有介詞或復(fù)雜介詞，關(guān)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）

　?、贗s 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.