one 引导同位语从句的用法，请高手举例说明

请讲解一下，one 引导同位语从句的用法，概念是什么

1 Tom is a good boy,ONE that every girl enjoys making friends with .

2 We need to buy a big house,ONE with a beautiful garden.

3 They want to live in a modern city, ONE that is as developed as Shanghai.

1.i want a cat,one whose color is red. 不加the,表示泛指，即不是特定的个体或集体，而是很多中的某个；加the，则表示特指。