牛津高中英語語法復習：定語從句
1） 當先行詞是專有名詞時，通常用非限制性定語從句，它本身就具有特殊性，無需在加限定。 shenzhen, which is in south china, is developing rapidly. my house, which i bought last year, has got a garden . mr. smith bought a new house on which he spent all his money.2) 當先行詞是具有某一特征的人或者物中的一個，但跟非限制從句時則表示唯一的一個，compare:her room has a window which faces south.her room has a window, which faces south.i have a brother who is working in beijing.i have a brother, who is working in beijing.3.當先行詞表示類屬意義，即表示某類動物，事物或人時，其后所跟的定語從句一般是非限制性的。a sleep is a useful animal, whose wool has many uses.football, which is a very interesting game, is now played all over the world.