It, One, That三词之用法区别1.它们三词均作代词用，指代前文提到的名词。但是it所指是同名同物，one和that所指是同名异物，如：我喜欢那辆汽车，可我没足够的钱买它。I likethe car, but I have no enough money to buyit.我喜欢汽车，可我买不起一辆。I like cars, but I can’t afford to buy one我想买...