Should it rain,the crops _____.
题目
Should it rain,the crops _____.
A.would be saved B.would have been saved C.will be saved D.had been saved
选什么呢?为什么呢?
答案
本来叫----If it should rain ,the crops would be saved.要是下雨,庄稼们就有救了.
If it should rain 是对将来进行虚拟的表达
这里,倒装了----去掉IF,把助动词SHOULD提前,意思不变
虚拟条件句的从句部分如果含有were,should,或had,可将if省略,再把were,should或had 移到从句句首,实行倒装.
Were they here now,they could help us.
=If they were here now,they could help us.
Had you come earlier,you would have met him
=If you had come earlier,you would have met him.
Should it rain,the crops would be saved.
=Were it to rain,the crops would be saved.
注意:
在虚拟语气的从句中,动词'be'的过去时态一律用"were",不用was,即在从句中be用were代替.
If I were you,I would go to look for him.
如果我是你,就会去找他.
If he were here,everything would be all right.
如果他在这儿,一切都会好的.
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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