1. However, there still exist such problems as inappropriate teaching ideas and the ineffectiveness of students' and teachers' identities. 但大学写作教学的现况却是问题扭结，教学理念失当，师生身份双重失效更是症结所在。
2. The ineffectiveness of the present detector and the passive detecting methods has become the choke point to the improvement of fire protection. 探测器测量不准以及被动的探测控制方法等已经成为制约消防工作质量提高的瓶径问题。
3. There is much that leads to the ineffectiveness of Ideological and Political Theory teaching in universities and pumping facts into students is the most particular one. 当前高校思想政治理论课教学效果较差有许多因素，其中很重要的一点是思想政治理论课在教学过程中采取灌输的教育方法。
