The college entrance examination is coming,the students are_____it.A.preparing B.prepared for C.prep

题目

The college entrance examination is coming,the students are_____it.A.preparing B.prepared for C.prepared D.preparing for
为什么不选D,D意思是说正在做准备啊

答案

prepare for意为“为……作准备”,for后面的宾语是准备的目的,即所要应付的情况.
而be prepared for强调准备好的状态.
整个这句话的意思是高考即将来临,考生们已胸有成竹.强调的是准备好的状态,所以选B而不选D.