问题
选择题
——Now lots of teenagers spend a lot of time playing computer games.
——Yes. Teachers and their parents should prevent them ______________ too much.
A.to play
B.play
C.plays
D.playing
答案
答案:D
题目分析:prevent sb. (from )doing sth.表示“阻止某人做某事”,这是一个固定用法。本句的意思是“老师和家长应该阻止他们玩的太多。”所以本题选D。
点评:对于prevent的用法,应该熟练掌握,其用法与stop和keep的用法一样,都表示“阻止某人做某事”。