关于“他叫Mike”的同义句，以下是多种表达方式：

直接指代

- This is Mike.

- Mike is the one.

强调名字

- Mike is his name.

- His name is Mike.

- Mike is just his name.

不同句式结构

- It is Mike.

- Mike is the person over there.

- The name of the boy is Mike.

这些表达在语义上与原句等价，可根据具体语境选择使用。例如在介绍他人时常用"This is Mike."，而强调名字时则优先使用"His name is Mike."。