【答案解析】{{B}} The Teacher-student Relationship{{/B}} The teacher-student relationship is of vital importance in class．A sound and efficient tie between teachers and students can help to do away with all the difficulties and misunderstandings in teaching and learning,and make classes fruitful． A teacher should not be too hard on his students．Frequent harsh and demanding words may discourage the students from giving and answering questions，interacting and even attending classes．on the other hand, too much freedom and let-alone time may give rise to no concept of discipline, unfinished homework and poor study performance on exams．Therefore, the teacher must keep away from the other extreme． The greatest gift a teacher can bestow the students is an awakening of a passion for learning．So a teacher should be enthusiastic, encouraging and helpful, and he should motivate his students to want to learn and form a right attitude toward study．He must make them see study as a joyful thing but not a burden and encourage them to work for the whole society When they graduate． Teachers' care and love for students is selfish．They not only input the innocent hearts knowledge，but also help to shape Character．Students should have great respect for their teachers and be polite inside and outside class．The biggest thing students can do for their teachers as respect may be to serve all the people heart and soul with knowledge from classes．