【小新说考研第287期】英语每日一题每日一题

Critics also argue that commercial genetic testing is only as good as the reference collections to which a sample is compared. Databases used by some companies don’t rely on data collected systematically but rather lump together information from different research projects. This means that a DNA database may have a lot of data from some regions and not others, so a person’s test results may differ depending on the company that processes the results. In addition, the computer programs a company uses to estimate relationships may be patented and not subject to peer review or outside evaluation.

In this paragraph, a problem commercial genetic testing faces is __________.

[A] disorganized data collection

[B] overlapping database building

[C] excessive sample comparison

[D] lack of patent evaluation

【试题透析】

[解题思路] 根据题干可定位至最后一段，该段句②Databases...lump together information from different research projects指出，商业性基因检测中所采用的数据库是从各种研究项目中收集到的信息的混杂集合，而非系统化地建立起来的。这就导致了“收集的数据杂乱无章”，因此，选项[A]最符合文意；并且该选项中的disorganized与原文中的not...systematically是同义表达。

[干扰排除] 选项[B]的关键词database出现在末段句②、③中。句②意在说明：一些公司所使用的数据库不是基于系统收集的数据，只是将不同研究项目的信息混杂在一起；句③旨在说明：某个DNA数据库有可能收集了某些地区的大量数据而缺乏其他地区的数据；文中并没有提及数据库的“重复建设”问题，故排除选项[B]。末段句①commercial genetic testing is only as good as the reference collections to which a sample is compared是指，商业性基因检测的准确性取决于用来与样本进行对比的参考数据，并没有提到“样本对比过多”的问题，故排除选项[C]。选项[D]中的关键词patent和evaluation在末段句④computer programs a company uses to estimate relationships may be patented中有所提及，原文是说公司的电脑程序可能申请了专利保护，因而无法得到外界的评估，并未提及对商业性基因检测的“专利评估”，由此可知，选项[D]的表述不正确。