<正> 1.用形容词 (1)sure,certain可能程度高,很有把握,有“必定、肯定”的意思。如: His work is sure to succeed. It is certain that he has already gone. (2)probable,Iikely可能程度不如sure,certain高,表示“多半、很可能”的意思。如: It is highly probable that he will come soon. He will very likely come. (3)possibIe可能程度低,意为“有可能”。如: It is probable not possible.