【正确答案】[参考范文]
   At present, there are many people who play the role of teacher in life. But they don't want to choose teaching as their career. Teaching is a long-lasting goal although it is a hard job. In my opinions, being a qualified teacher needs these factors: a passion for teaching, concern for students, patience as well as tolerance and outstanding knowledge.
   Firstly, a passion for teaching is the most important requirement of being a good teacher. Passion helps the teacher pass on knowledge to students. Sometimes the teacher needs to be like an actor in order to help students understand better. Secondly, concern for students also plays an important part in being a qualified teacher. Every student is different and possesses his own particular good qualities. We'll help them to improve their study and help them with any problem they may meet. Thirdly, different students have different comprehension to the teacher's question. Some students are not quick at responding. I think explanation several times is a better way than scorn or sarcasm. A qualified teacher should have a large capacity of patience and tolerance. Last but not least, knowledge is also an element. Students will not be aware that the knowledge which they have received from their teacher is adequate or not for them to do well in their studies. Maybe we are a very nice person, but it doesn't mean we can be a nice teacher. I will make every effort to do better.