As it is indicated in the second paragraph, the author finds it strange that ( ).

参考解析：

定位到文章第二段，Teaching to the test is a curious phenomenon. Instead of deciding what skills students ought to learn, helping students learn them, and then using some sensible methods of assessment to discover whether students have mastered the skills, teachers are encouraged to reverse the process. First one looks at a commercially available test. Then one distills the skills needed not to master reading, say, or math, but to do well on the test. Finally, the test skills are taught.可见，作者认为，为了考试而教学是一个很奇怪的，老师不是先看看学生需要学习什么技能，教给学生，再用测试看学生是否掌握了这些技能，而是先看看考试需要我们掌握什么技能，然后为了考试而教授这些技能，可见考试限制了学生所必备的技能。故本题正确答案选C。