The board reviewing the courses offered by the college found that the quality of academic programs w

题目

The board reviewing the courses offered by the college found that the quality of academic programs were generally good but d somewhat uneven.
我知道答案是将那个were 改为was.
但board reviewing的reviewing 前面不用 加was吗?
为什么.

答案

细分分析：
主句：The board reviewing the courses offered by the college found ...其中——
* The board found 是主句的核心部分,意思是“董事会认为...”；
* reviewing the courses ...是现在分词短语作后置定语,修饰 The board,意思是“审查...课程的（董事会）”（因为是定语,而不是句子中的进行时态谓语动词,所以不能加was）；
* offered by the college 是过去分词短语作后置定语,修饰 the courses,意思是“由学院提供的（课程）”.
宾语从句：that the quality of academic programs were generally good but d somewhat uneven 其中——
主语：the quality of academic programs 中介词短语 of academic programs 修饰单数名词 quality,意思是“基础理论计划的质量”
谓语部分：were generally good but somewhat uneven 是系表结构,因为主语是单数,系动词必须改为 was,意思是“除了有些参差不齐外总体上是好的”.
整个句子的意思是：审查由学院提供课程的董事会认为,基础理论计划质量除了有些参差不齐外总体上是好的.