pay attention to one's teacher

　　注意听老师讲课

　　-Pay more attention to your teacher when having a class。

　　-上课的时候你应该注意听老师讲课。

　　-I want to, but I can't concentrate on the subject。

　　-我也想啊，但我就是没法把注意力集中在课上。

　　flock around one's teacher

　　聚集在老师周围

　　-The children flocked around their teacher。

　　-孩子们都聚集在老师周围。

　　-They were attracted deeply by the story the teacher told。

　　-他们被老师讲的故事深深吸引了。

　　explain something to one's teacher

　　向老师解释某事

　　-I was absented from class yesterday because my mother was ill。

　　-我昨天没来上课是因为我妈妈病了。

　　-You should have explained that to your teacher。

　　-你应该向老师解释这事的。

　　buy one's teacher a present

　　给老师买礼物

　　-Tomorrow is Teachers' Day。

　　-明天是教师节。

　　-I suggest you buy your teacher some presents. What do you think?

　　-我建议你给老师买些礼物，你说呢？

　　present flowers to one's teacher

　　给老师献花

　　-Did you attend the graduation ceremony yesterday?

　　-你昨天参加毕业典礼了吗？

　　-Sure. It was moving that students presented flowers to their teachers。

　　-当然，学生们给老师献花的场景真让人感动。

　　fall short of the expectations of one's teacher

　　辜负老师的期望

　　-I think the principal's speech encouraged me deeply and doubled my confidence. The bitterness and tiredness of the past are now transformed into aspiration for the future。

　　-我觉得校长的演讲深深激励了我，让我信心倍增。过去的那些痛苦艰辛如今都转化成了对于明天的向往。

　　-I have the same feeling. I thought that I would do my best to study well in the future thus not to fall short of the expectations of my teachers and my parents。

　　-我也有同样的感受。我想我以后要努力学习，那样才不辜负老师和父母的期望。

　　*live up to / come up to / meet one's expectations 不辜负某人的期望

　　stand well with one's teacher

　　深受老师的好评

　　-John stands well with his teachers。

　　-约翰深受老师的好评。

　　-Yes. He's a student with excellent morals and academic skills, so he's popular with all his classmates and teachers。

　　-是啊。他是个德才兼备的学生，所以很受同学、老师的欢迎。

　　get a rap on the knuckles from the teacher

　　受到老师的批评

　　-He got a rap on the knuckles from the teacher for not finishing his homework。

　　-因为没完成作业，他被老师批评了。

　　-He deserved it. He spent the whole night on the Internet。

　　-活该，谁让他整晚都在上网。

　　*(give somebody/get) a rap on/over/across the knuckles - (to give somebody/receive) strong criticism for something (给某人以／受到)严厉谴责，厉声训斥

　　respect one's teacher

　　尊敬老师

　　-We should respect our teachers. You shouldn't have answered your teacher back in class。

　　-我们应当尊敬老师，你不该在课上同老师顶嘴。

　　-It was an impulse. I couldn't stand her。

　　-那是一时冲动，我实在受不了她。

　　acknowledge one's debt to one's teacher

　　感谢老师

　　-Congratulations! You finished top in the final examination。

　　-恭喜恭喜！你在期末考试中取得了第一名。

　　-Thank you very much. I don't know what to say. I want to acknowledge my debt to my teacher first。

　　-谢谢，我都不知道说什么了。首先我得感谢老师。

（来源：沪江英语）