【昨日回顾】The tests themselves are merely tools，with characteristics that can be measured with reasonable precision under specified conditions. The target is wrong，for in attacking the tests，critics divert attention from the fault that lies with ill-informed or incompetent users.这些测试本身只是一种工具。它的各种特性可以在规定条件下用适当的精度来测定。这种抨击目标是错误的，因为在抨击这类测试时，批评者没有注意到其弊病来自测试使用者对测试的不了解或自身的能力不足。【今日长难句】Whether the results will be valuable，meaningless，or even misleading depends partly upon the tool itself but largely upon the user. All informed predictions of future performance are based upon some knowledge of relevant past performance: school grades，research productivity，sales records，or whatever is appropriate.
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【句子分析】1. 首句主干为“主谓宾结构”= whether the results will be valuable, meaningless, or even misleading//depends partly upon/ the tool itself /but largely upon the user.2. whether the results will be valuable, meaningless, or even misleading 为主语从句；depends partly upon …与but (depends ) largely upon the user 为but链接的并列结构。3. 二句主干：主谓宾（被动）= All informed predictions of future performance //are based upon// some knowledge of relevant past performance。修饰成分：school grades，research productivity，sales records，or whatever is appropriate 对relevant past performance 的内容做补充说明。【基础必备词】valuable adj. 有价值的meaningless adj. 没有意义的misleading adj. 误导性的depend upon 取决于informed adj. 消息灵通的；见多识广的prediction n. 预报；预言performance n. 性能；绩效；表演relevant adj. 相关的；切题的；中肯的grade n. 年级；等级；成绩productivity n. 生产力；生产率；生产能力appropriate adj. 适当的；恰当的；【参考译文】Whether the results will be valuable，meaningless，or even misleading depends partly upon the tool itself but largely upon the user. All informed predictions of future performance are based upon some knowledge of relevant past performance: school grades，research productivity，sales records，or whatever is appropriate.测试的结果是否是有价值的、无意义的、还是误导的，部分取决于这种工具本身，但主要取决于测试使用者。所有对未来表现的有见识地的预测都是以在某种程度上了解有关过去的表现为基础的:学校学习成绩、研究效益、销售记录或任何符合需要的信息。【明日预告】How well the predictions will be validated by later performance depends upon the amount，reliability，and appropriateness of the information used and on the skill and wisdom with which it is interpreted.
