怎么判断这是一个省去了IF的条件状语从句：What would have happened had Bob walked farther？

怎么判断这是一个省去了IF的条件状语从句：What would have happened had Bob walked farther？怎么判断这是一个省去了IF的条件状语从句：What would have happened had Bob walked farther？

热心网友

很简单,条件状语从句中的IF一旦省略,句子必须到装,也就是说要将句子的谓语动词提前,What would have happened had Bob walked farther？这句话也可以这样表达:Had Bob walked farther, what would have happened?前句的主语即为后句的主语.此处的虚拟语气也是有规可循的,如果前句用过去完成时态,那么后句就必用would/should/could+have+过去分词结构,如果前句用过去时,那么后局就用过去完成时态或would/should/could+动词原形来表示.其他我就不一一说了,你自己可以看语法书来进行总结.

热心网友

此句是虚拟语气结构的省略形式,它也可为:If Bob had walked farther ,what wuold have happened?在条件句中,如果有had,should和were三个词时,可省略if,三词提前,构成倒装结构。其他例子:1。If you had read the book,you would have known more about him。-----Had you read the book, you would have known more about him。2。If it should rain this afternoon,I would not go with you。-----Should it rain this afternoon,I would not go with you。3。If he were to be late on Monday,I would do the work alone。-----Were he to be late on Monday,I would do the work alone。

热心网友

这是虚拟语气,如果不省去IF,就是这样的:What would have happened if Bob had walked farther？省去了If,就用倒装had Bob walked farther表虚拟语气了．

热心网友

What would heve happened ...？是疑问句啊，已经有了主，谓，所以后面的：had bobwalked farther一定是从句了，嗯，分析下就知道，有两个语法点：1是if的虚拟语气：2是从句倒装省去了IF，好了，你去领悟吧。。。。