【正确答案】[范文]
   
   Honesty is a precious virtue that should be treasured. A saying goes like this "A liar is not believed when he speaks the truth". What this implies is that honesty resembles a piece of flat paper, which once crumpled will never be neat again.
   In the well-known story of "Wolves are coming", the shepherd boy was eaten by the wolves in the end because he had lost people's trust for telling lies many times. Sometimes even if a person speaks or acts dishonestly for only once, others will be suspicious of him or her thereafter. Sadly, nowadays, more and more people choose to sacrifice their honesty or sell out to convenience for pursuing reputation, personal interest, etc.
   The fact is that, among all the good qualities a person should possess such as kindness, diligence and bravery, honesty is regarded as the fundamental one for him to gain a foothold in the society. Being honest can help to gain sincere trust and respect of others, and thus promote our study, career or other aspects in life. Given all the above, we should always be honest.

【答案解析】
   这是一篇分析型的论说文。要求结合“爱说谎的人即使说实话也没人相信”这句话对文章主题“珍视诚信”进行分析。根据题目要求，全文可以安排如下：
   第一段概述现象，引出下文讨论的话题“珍视诚信”。
   第二段从几个方面分析论证为什么要讲诚信。
   第三段总结全文。