新概念3第九课的问题The radio would signal the rate at which the ball was slowed down and scientists would be able to calculate hoe dence the atmosphere is .这句话中,“the ball was slowed down ”是虚拟语气的用法吗?可那篇文章描写的好像都是将来时态的内容。开篇第一句是“By now,a rocket will have set off on its thirty million mile trip to Mars.”如果是虚拟语气，那这个又是虚拟语气的哪种用法？
新概念3第九课的问题
The radio would signal the rate at which the ball was slowed down and scientists would be able to calculate hoe dence the atmosphere is .
这句话中,“the ball was slowed down ”是虚拟语气的用法吗?
可那篇文章描写的好像都是将来时态的内容。开篇第一句是“By now,a rocket will have set off on its thirty million mile trip to Mars.”
如果是虚拟语气，那这个又是虚拟语气的哪种用法？
对
不是虚拟语气, 是一般过去时的被动语态.
肯定不是虚拟语气!回答要负责任的!
这是一个定语从句里面的一般过去时态的被动语态.
补充:
这不是什么虚拟语气,你现在还没明白吗?一楼简直误人子弟!你是听他一个字,还是听我好好给你说?
你给出的句子:
The radio would signal the rate at which the ball was slowed down and scientists would be able to calculate hoe dence the atmosphere is .
在这个句子里,用的都是过去时,所以你不要看全篇讲的什么时态,也许这里是讲的过去的情况. 两个would就说明了这一点.
个别的句子和整篇文章的时态没有什么必然联系.你想想,如果你写将来火箭发射到火星,你是不是也会写之前科学家们的努力呢?这时候就是过去时了.
希望你现在理解了.