请问指示形容词和指示代词之间有什么区别？总是分不清这两个

实际上指示形容词和指示代词都是相同的词，只是在用法上不同而已。this that those these one当这些词用作定语时，他们具有形容词词性；当他们用作主语、宾语、表语时，他们具有名词词性，因为他们是【指代】，所以是【指示代词】。
作定语：
This/That girl is Li Ping. These/Those men are my teachers.
One(是数词) boy is standing over there.
作主语、宾语、表语
1.作主语：
This/That is Li Ping. These/Those are my teachers.
One is mine. The other one is his.
2.作宾语：
Please give this/that to Li Ping. Please give these/those to your teachers.
Please give one to your brther and the other one to your sister.
祝你学习进步！
阿弥陀佛！