适用于:人教课标高二英语下学期选修7 语法讲与练 复习课
考点一:考查非谓语动词在句子中充当的成分
作主语
It’s important for the figures _____ regularly. (2011北京)
A. to be updated B. to have been updated
C. to update D. to have updated
析: A。句意:经常更新这些数值很重要。句中It为形式主语,for sb to do sth为真正的主语。数据要不断被更新,因此用动词不定式的一般被动式。
作表语
In April, thousands of holidaymakers remained _____ abroad due to the volcanic ash cloud. (2010福建)
A. sticking B. stuck
C. to be stuck D. to have stuck
析:B。句中remain为系动词,后面动词-ed形式作表语,表示被动。