为备考英语六级的同学们整理了英语六级听力口语关键句，但愿可以为大家带来协助，预祝大家高分通过大学英语六级考试。 12 月大学英语六级听力口语关键句汇总 英语六级听力口语关键句(83) I couldn't have won the award without your assistance. 点睛 couldn't have won 意为“本来不会赢”，是虚拟语气的一种，表达对过去状况的假设。 考点归纳 “情态动词+目前完毕时”句型的使用方法诸多。如： must have+done sth. 表达对过去也许发生的事情的推测，意为“肯定”。如： Mary has gone to work, but her bicycle is still here. She must have gone by bus. 玛丽已经去上班了，不过她的自行车还在这儿。她一定是坐公共汽车去的。 would like to have done sth. 意为“本打算做某事”。如： I would like to have read the article, but I was very busy then. 我本来想读一读那篇文章，不过当时太忙了。 needn't have done sth. 意为“本没必要做某事”。如： I dressed very warmly for the trip, but I needn't have done so. The weather was hot. 为了旅行，我穿得很暖和，不过其实没有必要穿这样多。天气比较热。 ought to/should have done sth. 表达“本应当做某事，而实际上并没有做”。否认句表达“不该做某事而做了”。如： 1) You ought to have been more careful in this experiment. 在做这个试验的时候，你本应当更细心某些。 2) He ought not to have thrown the old clothes away. 他本不该把那些旧衣服扔了。 12 月大学英语六级听力口语关键句汇总
