英語六級必備句型：定語從句
句型是作文的基礎，因此在備考今年六月份的英語六級寫作時，儲備功能句型，對提升作文整體質量非常重要。
定語從句
在復合句中修飾名詞或代詞的從句是定語從句。被定語從句修飾的詞叫先行詞。定語從句必須放在先行詞的后面。定語從句一般由關系代詞that, which, who, whom, whose和關系副詞when, where, why引出。
關系代詞和關系副詞有兩個作用：1、把主句和從句連接起來;2、在從句中作一個成分。which, that, who在從句中作主語或賓語;whom作賓語;whose作定語。when, where, why在從句中作狀語。
關系代詞that, which, who, whom如果在從句中作賓語，也可以省略。
另外，如果which或whom在定語從句中原為介詞的賓語，則這個介詞可以提到從句前，構成介詞+which或whom引出的定語從句。
定語從句根據與先行詞的密切程度可分為限制性定語從句和非限制性定語從句。限制性定語從句與先行詞關系密切，從句是整個句子不可缺少的部分，去掉之后句子的意思就不完整，不明確，從句與主句之間不用逗號隔開。非限制性定語從句與先行詞的關系比較松散，從句只是對先行詞的附加說明，去掉之后句子的意思仍然很清楚，從句與主句之間常用逗號隔開。
將下面每組中的兩個句子合并，將其中一個改為定語從句。
1) I went to visit the American author.
He wrote a number of books about China.
2) My aunt prepared the soup.
I ate the soup.
3) I have an arrangement with my bank.
By the arrangement they let me use their money and repay them next month.
4) He sent her a letter.
In the letter he said that he was sorry for what he had done to her.
5) Mr. Brown just came from Britain yesterday.
He will teach us accounting this term.
6) She is going to spend the winter holidays in Hainan.
She has some relatives there.
7) The United States is known for its supermarkets.
In these supermarkets, huge quantities of all kinds of food and household articles are sold.
8) The story happened in late 19th century.
At that time, China is suffering from the invasion of western powers.
本文地址：http://www.hengchuai.cn/writing/englishtest/cet6/62818.html
