秘诀四、非谓语动词作定语时,表示将来用to do,表正在进行用-ing,表示已经完成用-ed。
例7.The play_____ next month aims mainly to reflect the local culture.
A. produced B. being produced
C. to be produced D. having been produced
【解析】根据本题中的时间状语next month,可知the play将于下月被创作出来,表将来应该用to do,所以答案为C。
例8.The trees _____ in the storm have been moved off the road.
A. being blown down B. blown down
C. blowing down D.to blow down
【解析】根据句意“被暴风雨刮倒的树已经从路上移走了”,树被刮倒是过去已经完成的动作,表已经完成用-ed形式,所以答案为B。