Should it rain,the crops -----.

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。