BEC 中级口语题目：what’s important when working as a teacher?

BEC 中级口语题目：what’s important when working as a teacher?
一共需要3个论点,下面已经给出2个论点,请在另提供一个论点,请展开写,每点写个4-5句就可以.
一,Sharing expertise
二,Deciding responsibilities
三,.

本人按题目要求写的英文段落如下供参考,
What's important when working as a teacher?
As we all know,a teacher is a person who provides education for students.I think working as a teacher requires the following three points:
1.Sharing expertise
The role of teacher is to impart knowledge and instruction to students.Thus a teacher must be willing to share his/her own expertise to students.The process of teacher sharing expertise is also the process of students learning knowledge and gaining experiences.The process should be performed by the guidance of teacher.
2.Deciding responsibilities
Teacher can greatly affect how students perceive things.Therefore,as a teacher,one should always take deciding responsibilities for students.A teacher should help students make their own decisions,while correct their bad decision-making,and be responsible for related consequences.What a teacher do will establish role model to students.
3.Teacher enthusiasm
A teacher's behavior can affect students in many ways.It has been found out that a teacher who shows enthusiasm during teaching can remarkably improve students' learning experiences.A teacher must enjoy teaching,be enthusiastic about students and subject matter.A teacher who cares for students is going to help them succeed in their life in future.