Question

_____more about computers,we______him to work here.A.If he learns,would hire B.Had he learnt,would

have hired
C.If he learnt，would have hiredD.Has he learnt, would hire选什么？为什么？

Answer 1

答案：B

翻译举胡碧：如果他以前要是学了更多有关电脑的知识，我们就雇佣他在这里做轿上班了。

解析：这句话使用的是虚拟语气。根据虚拟语气的搭配：对过去事情的虚拟

主句使用 would have done，从句使用 had done，

虚拟条件句的从句部分含有were, should, 或had时, 可省略if，再把were, should或had 移到从句

的句首，实行倒装。例如：

　 Were they here now, they could help us. =If they were here now, they could help us.他们现在在的话，就会帮正举助我们了。

　 Had you come earlier, you would have met him. =If you had come earlier, you would have met him.你来得早一点，就碰到他了。

四个选项只有B正确

A if 从句使用了一般现在时，而主句却是用了would一般过去时，时态相互矛盾。

C 缺少had

D has 改成had

如有疑问，请追问。

无疑后请采纳。

书山有路勤为径，学海无涯苦作舟。

-----------与君共勉-----------

追问

那为什么是表示与过去事实相反呢？为什么不是表示与将来事实相反？翻译成（如果他将努力学习电脑知识，我们将雇佣他），请解释一下，谢谢

追答

当然可以表示 与将来事实相反，但是题目中的选项没有符合的 。
如果表示与将来事实相反，主句用should/would等 + 动词原形，从句使用一般过去时/were+ 不定式
/should+ 动词原形
但是四个选项里没有符合这个结构的

追问

你可不可以讲一下虚拟语气的具体用法，谢谢

追答

虚拟语气用来表示说话人的主观愿望或假想，而不表示客观存在的事实，所说的是一个条件，不一定是事实，或与事实相反。虚拟语气通过谓语动词的特殊形式来表示。

用法及动词形式　　1、表示与现在事实相反的情况：
从句：If 主语+过去时(Be动词用were)
主句：主语+should/would/could/might+do
eg：　
1．If I were you,I would take an umbrella.
如果我是你，我会带把伞。（事实：我不可能是你）
2．If I knew his telephone number,I would tell you.
如果我知道他的电话号码，我就会告诉你。（事实：不知道）
2、表示与过去事实相反的情况
从句：If 主语+had+done
主句：主语+should/would/could/might+have done　
eg：
1． If I had got there earlier,I should/could have met her. 如果我早到那儿，我就会见到她。
（事实：去晚了）
2．If he had taken my advice,he would not have made such a mistake. 如果他听我的劝告的话，就不会犯这样的错误了。
（事实：没有听我的话）

3、表示对将来情况的主观推测　　
主句：主语+should/would/could/might+do　

从句：①if+主语+were to do
②if+主语+should/would/could/might+do
③if+主语+did（动词过去式）/were [1]
eg：
1．If he should come here tomorrow,I would talk to him.
如果他明天来这儿的话，我就跟他谈谈。（事实：来的可能性很小）
2．If there were a heavy snow next Sunday,we would not go skating.

要是他认识她的话，他肯定会去问候她了。
4、 当虚拟条件句的谓语动词含有were,should,had时，if可以省略，这时条件从句要用倒装语序，即把were,should,had等词置于句首，这种多用于书面语。eg：
Should he agree to go there,we would send him there.
要是他答应去的话，我们就派他去。
Were she here,she would agree with us.