Many social scientists lament the trend A( toward) shorter attention spans in B(our society) that C(have led) to what D(
问题描述：
Many social scientists lament the trend A( toward) shorter attention spans in B(our society) that C(have led) to what D(they) call a sound-bite culture E(no error)答案说没错,但我当时选了A,trend不是可数名词吗?那为什么toward不加s?
答
toward 是副词 不是动词.那本句的谓语是什么啊？？？lament ~但我查了字典，toward是形容词和介词啊，难道是toward作形容词修饰the trend吗Sorry ,, 我上面打错了- -这里toward 是prep 介词。不好意思。。这里不应该是做adj.吗不是adjMany social scientists lament the trend that have led to what they call a sound-bite culture. 再看一下结构，非常复杂从句里套从句。 toward 介词引导的整个括号里又有一个省略that 的从句修饰attention，里的修饰trend, 最后一部分的that 是修饰trend的宾语从句