2016年江西成考专升本英语考试复习笔记23(4)

来源：: 江西成考网
发布日期: 2017年04月19日

摘要：　　虚拟语气主要表示假想虚拟的情况以及主观愿望、建议、命令等。　　（一）虚拟语气的基本用法　　1、在含if引导的条件句的复合句中　　如果假设的情况不可能发生或发生的可能性不大，则主句和从句的谓语都要用虚拟语气。虚拟语气在不同语态中的表现形式如下：　　1）一般现在时　　从句：过去式（be 动词多用were）　　主句：would / could / might +动词原形　　如：I would certainly go if I had time. 　　If it weren&rsquo

略）。如：

　　It is necessary that every student recite these new words.

　　It is important that a scientist （should） keep up with the latest development in his field.（keep up with 跟上、赶上）

　　It is strange that she （should ） have failed in the exam.

　　7、以lest（以免）， for fear that（以免）和in case（以免）引起的从句（谓语多用should加动词原形构成）

　　He took his umbrella lest it should rain.

　　He put his coat over his son for fear that （lest） he should catch cold.

　　Bring some money in case you should need it.