纪录的保持者。其他一些短跑纪录至今依然让人感到怀疑。比如，弗罗伦斯•格丽菲斯1988年的百米纪录。她服兴奋剂了吗？如果美国运动员玛里昂•琼斯没有服用兴奋剂的话，她能成功地进军奥运会吗？

服用兴奋剂不仅仅是田径运动中存在的问题，每个运动项目都存在这个问题，运动员想取得超常体育成绩而准备作弊。当2006年环法自行车赛的冠军弗洛伊德•兰蒂斯被查出服用了兴奋剂时，举世的支持者为之哗然。弗洛伊德•兰蒂斯做了几次站不住脚的辩解，推诿说药物是为了治疗伤痛而服用的，但这些都是徒劳的。他的两次兴奋剂检测结果都呈阳性。

Unfortunately, it is not easy to catch athletes using illegal drugs○32. It is compulsory○33 for winners to be tested but other participants are only tested at random○34. New drugs are developed all the time and drug tests for sporting events are often one step behind.

However, doping is not the only thing we need to worry about○35. Unless we are careful, "gene­therapy○36" will be the next big threat○37. For medical purposes, scientists have already found ways to build muscle and increase strength by changing people's genes. Gene­therapy is very controversial○38 and many people oppose○39 further research into it. If gene­therapy were used now, it would be almost impossible to find out○40. In the future, athletes who have their genes changed○41 might be able to do the 100 metres dash○42 in just 8 seconds or the marathon○43 in less than two hours. However, if a generation of sports stars with enhanced genes○44 were created, it would contradict○45 the whole spirit of sport.

The Olympic spirit - the spirit of competition which emphasises taking part rather than winning - has been violated○46 by the desire to succeed at all costs○47. In today's world, winners are celebrated and treated as heroes, but if doping and gene­therapy continue to affect the outcomes of major sporting events, the word "hero" will have lost all meaning.,○32catch sb. doing sth.撞见某人正在做某事

○33compulsory/kəm'pʌlsri/adj.强制性的，义务的

○34at random/'rændəm/随便地，随意地

○35we need to worry about是定语从句，修饰the only thing。

○36gene­therapy/dʒiːn'θerəpi/基因疗法

○37threat/θret/n.威胁

○38controversial/ˌkɒntrə'vɜːʃl/adj.有争议的

○39oppose/ə'pəʊz/vt.反对

○40本句为与现在事实相反的虚拟语气

○41have sth. done表示"让某事被做"。

○42dash/dæʃ/n.短跑

○43marathon/'mærəθn/n.马拉松赛跑

○44with enhanced genes为sports stars的定语。

○45contradict/ˌkɒntrə'dIkt/vt.与(其他事物)相矛盾

○46violate/'vaIəlIt/vt.违反，违背

○47at all costs不管多大代价，无论如何

[第6～8段译文]

不幸的是，查出运动员服用违禁药物并不容易。获胜者被强制进行检测。而其他参赛选手只是随机抽检。而且，新药一直在研制中，而对运动项目的药物检测