好老师用英语可以称作"good teacher"或者"excellent teacher"。

"Good"是英语中常用的一个形容词，意思是"优秀的，好的"。"Excellent"也是一个形容词，意思是"优秀的，杰出的"。因此，当我们想要用英语表达"好老师"的时候，可以使用这两个形容词。

下面是一些例句：

My Engpsh teacher is a good teacher. She always explains things clearly and makes the class enjoyable.
(我的英语老师是一位好老师。她总是讲得很清楚，让课堂变得有趣。)

Mr. Smith is an excellent teacher. He is always patient and understanding, and he always has new and creative ways to teach.
(史密斯先生是一位优秀的老师。他总是耐心和理解，并且总是有新颖的教学方法。)

Mrs. Johnson is a good teacher because she is always well-prepared and makes sure that all of her students understand the material.
(约翰逊太太是一位好老师，因为她总是做得很充分，并确保所有的学生都理解这门课的材料。)

希望这些例句能帮助你。