省略在虚拟条件句中的应用

 　　一、省略连词if

　　有时可将条件从句的连词if省略，但此时应用倒装句型，即将从句中的were, should, had 等提到句首。如：

　　Were I you, I would stay. 倘若我是你, 那我就留下。

　　Should I be free tomorrow, I will come. 万一我明天有空，我会来。

　　Had it not been for the bad weather we would have arrived in time. 若不是天气坏，我们就准时到达了。

　　注：① 若条件从句为否定句，否定词not应置于主语之后，而不能与were, should, had 等缩略成weren't, shouldn't, hadn't而置于句首。

　　② 有时省略if后提前的had不是助动词。如：

　　Had I time, I would come. 假若我有时间，我会来的。(=If I had time…)

　　二、省略从主语和动词be

　　若主从句主语一致，且谓语部分包含有动词be，通常可将主语和动词be省略。如：

　　If repaired earlier, the tractor¹ would not have broken down. 要是早点儿修一下，拖拉机就不会抛锚了。(=If it had been repaired earlier…)

　　三、省略“it+be”

　　If necessary, I would send more farm-hands to help you. 如果需要的话我会派更多的民工去你。

　　四、省略整个条件从句

　　这样的省略通常需要借助一定的上下文，即省略条件从句后，所剩下的主句的意思在一定的上下文中意思是清楚的。如：

　　I might see her personally. It would be better. 我可以亲自去看她，这样好一些。(=…If I saw her personally, it would be better.)

1 tractor   

n.拖拉机，牵引车

参考例句：

• You must oil the tractor every day.你必须每天给拖拉机加油。
• He has a tractor.他有一台拖拉机。