The Harmful Effect of Reference Books(参考书泛滥成灾)
1．参考书泛滥已成为师生共同关注的问题；
2．参考书泛滥所产生的问题；
3．我的建议。后以《大学英语》竟有十多种参考书为例支持主题句，并以由此可产生的问题(使用不当和过度使用)引起下文；第二段列举问题所在，如：可使学生上课注意力不集中、有些参考书误导学生、学生过分依靠参考书等；第三段写“我”建议学生要适度使用，出版社要谨慎出版，二两者都要态度端正。
[范文]
    Nowadays reference books have become a problem of great concern for both teachers and students. For example, there are more than ten kinds of reference books available to users of College English. A smarter use of these books is certainly beneficial, but the misuse and overuse of them may cause a tot of problems.
    To begin with, they make the students tess attentive in class. Armed with reference books, many students may think that they know what the teacher is going to talk about. So they may not listen to the teacher in class at all. And they may not have the chance to listen or speak English. As a result, they will neither speak nor understand when they are spoken to. Secondly, some reference books are so filled with mistakes that students may be confused as to the correct term or answer. Third[y, by merely referring to the reference books, the students may be deprived of the ability to work out the solution to the problems themselves. Finally, faced with so many kinds of reference books, the students may feel at a loss which to buy.
    I, therefore, suggest that students neither overuse nor misuse the reference books. I also suggest that publishing houses make concerted efforts to publish fewer but better reference books. If both the students and the publishing houses adopt the right attitude toward reference books, they will both benefit a lot from them.