instruct
1.可以说His father instructed him in mathematics，不可说His father instructed mathematics to him或His father instructed him mathematics。
2.instruct作“通知”解的时候，后面接宾语和以that或what等词引导的从句。例如：The Bureau of Education has instructed us that our term will end next Saturday. 和Please instruct me what to do with the damaged goods. 这样用法的instruct比inform严谨。
