Of all the goals of the education reform movement, none is more difficult th

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问题     Of all the goals of the education reform movement, none is more difficult than developing an objective method to assess teachers. Studies show that over time, test scores do not provide a (1)______ means of separating good from bad instructors.
    Test scores are an(2)______ indicator of quality because too many factors outside of the teachers’ control can influence student(3)______ from year to year—or even from classroom to classroom during the same year. Often, more than half of those teachers (4)______ as the poorest performers one year will be judged average or above average the next, and the results are(5)______ as bad for teachers with (6)______ classes during the same year.
     (7)______, there’s a far more direct approach: measuring the amount of (8)______ a teacher spends delivering relevant instruction—(9)______, how much teaching a teacher actually gets done in a school day.
    This is hardly a new(10)______. Thirty years ago two studies using this approach found that some teachers were able to deliver(11)______ 14 more weeks a year of relevant instruction than their less efficient(12)______.
    There was no(13)______ to their success: it was obvious that the efficient teachers(14)______ strictly to the curriculum, maintained stern discipline and(15)______ non-instructional activities, like(16)______ unessential classroom business when they(17)______ focused on the curriculum.
    And both studies found that the teachers who(18)______ more were also the teachers who(19)______ students who performed well on(20)______ tests. [br] (19)

选项 A、produced
B、created
C、manufactured
D、invented

答案 A

解析 词义辨析题。此处要填一个动词,说明老师和学生的关系,所谓名师出高徒,所以选A项,produced“创造,出产”,在原有材料基础上创造出新事物,这个词可以用于学校教育。created“制造,引起”,是一个从无到有的创造过程,不适合用于这里的语境;manufactured“用机器大量制造”,不符合句意;invented“发明创造”,用于科学发明,不适用于此处。
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