问题
填空题
Since teaching is a job no one can be perfect at, it is necessary for teachers to keep improving their knowledge of the subjects they teach and their ______.
答案
参考答案：teaching methods
解析：推理题。在最后一段的第二句提到了“Teaching a job at which one will never be perfect…”这一信息，第三句列举了三个需要进一步提高的目标，其中第二点是本题的考点。可以得分的答案有： teaching methods；methods Of teaching; methods to teach the subjects best to particular pupils； methods to teach(best；technique(s) of teaching等。