1 bank on sb doing sth = rely on sb doing sth. 指望某人做某事。would在此为推测性用法,比will显得委婉,说话留有余地。
2 can在肯定句表示理论上的可能性。不可以用will 替换。could在本句可以表示推测,可以用will 替换,二者表示的推测的可能性大小不同。
请问各位老师:我有如下关于情态动词的几个问题
1. 外研社新版本教材选修三Unit 4,p43 中有这样一句话: Although I wouldn't bank on patients feeling confident about seeing a robot doctor any time soon, I'm sure that AI doctors are on the horizon.
2. P47 中有这样一句话: “But the report says that even new, regularly-maintained robots can break down,” Todd protested."And in a maximum-security prison like yours, one small error could cause a lot of problems."
第二句中出现了两个情态动词,我个人认为第一can是表示客观可能性,第二个could也是,但是为什么第二个要用could呢?
感谢各位老师