Non defining relative clauses非限定性定語從句

Relative clauses add extra information to a sentence by defining a noun. They are usually divided into two types –defining relative clauses and non-defining relative clauses.

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定語從句是對句子裏的名詞加入額外的信息。一般來講，有兩種類型的定語從句—限定性定語從句和非限定性定語從句。

Non-defining relative clauses

非限定性定語從句

Look at this sentence.

看看這個例句

‘who is 87’ is a non-defining relative clause. It adds extra information to the sentence. If we take the clause out of the sentence, the sentence still has the same meaning.

‘who is 87’是非限定性定語從句，它給句子增加了額外的信息，如果我們把從句從句子裏拿出來，句子的意義沒有受影響。

Look at some more examples.

看看更多的例句

Non-defining relative clauses add extra information to sentences.

非限定性定語從句給句子增加了額外的信息。

Defining or non-defining?

限定性還是非限定性？

Remember that defining relative clauses are used to add important information. The sentence would have a different meaning without the defining relative clause.

請記住，限定性定語從句是給句子增加了重要的信息，句子如果沒有了定語從句，其意義不同。

The defining relative clause tells us which skirt.

限定性定語從句告訴我們是哪個短裙。

The non-defining relative clause doesn’t tell us which skirt – it gives us more information about the skirt.

非限定性定語從句不會告訴我們是哪個短裙，它給我關於短裙的更多信息。

Non-defining relative clauses can use most relative pronouns (which, whose etc,) but they CAN’T use ‘that’ and the relative pronoun can never be omitted.

而非限定性定語從句能用關係代詞which和whose等等，但是它們不能用that，其句子中的關係代詞也不可以被省略。

Non-defining relative clauses are more often used in written English than in spoken English. You can tell that a clause is non-defining because it is separated by commas at each end of the clause.

相比起口語，非限定性定語從句更多地用於書寫英語，你能辨認出哪個是非限定從句，因爲習慣會在每個從句的結尾，用逗號分開。