问题
选择题
With more forests being destroyed，huge quantities of good earth ________ each year.
A．is washing away
B．is being washed away
C．are washing away
D．are being washed away
答案
答案：D
题目分析：考查时态，句子主语是huge quantities of good earth意思“大量的土壤”，土壤被流失，所以用被动语态，因为是动作正在发生，所以用进行时，所以选D，句子意思“随着较多的森林被破坏，大量的土壤正在被流失”
点评：做时态题时，首先看时间状语，由时间状语判断时态；如果没有时间状语，从句子暗含的意思来判断句子时态