【问】 请问在God bless you这个句子里为什么主语和谓语不保持一致关系呢?
 【答】 英语里有一种现在虚拟式(也叫动词原形虚拟式)，常常用来表示很可能实现的愿望。
 1. God bless you!
 上帝保佑你!
 2. The Lord save us!
 愿上帝救我们!
 3. Heaven forbid!
 上天不容!
 4. Heaven help us!
 愿上天保佑我们!
 5. “God bless America! ” She said
 她说：“愿上帝保佑美国。”
 6. Moreover，the work in which this appears is not intended for the enjoyment of eruditescholars，whom God preserve，but for the enlightenment of the ordinary innocent weakling who is only too easily led away from the faith. (Curme)
 再者，出现这种内容的作品并不是为了供博学的学者(愿上帝保佑他们!)欣赏，而是为了启蒙那些太容易被人引入歧途的普通而单纯的弱者。
 在某些现在虚拟式中，主语和动词要实行倒装：
 1. Suffice it to say that...(=it's sufficient to say that)
 只要说……就够了。
 2. Suffice it to say that he keeps lying to his friends.
 只要说他对朋友老说谎这一点就够了。
 3. So be it then!
 那就这样吧!
 4. Be that as it may...(=However that may be)
 无论如何……
 5. Long live our motherland!
 祖国万岁!
 6. come what may(=whatever may happen)
 不管发生什么事
 (参见come what may)