1.southern只能做形容词,所以它要修饰名词part做定语,构成固定搭配:in the southern part of China.
但是,绝对不可以说:in the southern of China.
2. 而south兼有三种词性:名词,形容词和副词。
1)做名词时,当然就有固定搭配:in the south of China
2)作形容词时,等同于southern,所以以下两种说法都是正确的,即:
in the south part of China = in the southern part of China
3)做副词时,副词south = in/on/to the south(名词) = in/on/to the south/southern(形容词) part.
如:Guangdong lies in the south of China. 名词
= Guangdong lies in the south/southern part of China. 形容词
= Guangdong lies south of China. 副词
最后一个例句中的south就是副词,等同于介宾短语。这句也是考试中经常考查的考点。
3. 最后提一点,south作为形容词的用法虽然在语法上无误,但是平时很少用。
一个n一个adj一个是南方,一个是南方的