在英语语法的学习中,should也是高频词汇之一,那么关于should的具体用法是什么呢?下面进行详细讲解: 一 . should 作为助动词 shall 的过去式,可以在间接引语中与第一人称主语搭配,表示过去将来时间。例如: The group leader announced that we should (= would ) begin to work soon. 小组长宣布:我们不久就开始工作。 A week ago, I told him that I should (= would) go to Beijing the next day. 一个星期以前,我告诉他我第二天就去北京。 二 . should 作为情态动词,通常用来表示现在或将来的责任或义务,译作“应该、“应当,这时它可以和 ought to, be supposed to 互换使用。例如: You should (= are supposed to ) complete your test in time. 你们应该按时做完你们的实验。 You should (= ought to ) tell your mother about it at once. 你应该立即把此事告诉你妈妈。 In sum, theory should be combined with practice. 总之,理论应该与实验相结合。 三 . should 作为情态动词,可以用在条件状语从句中,表示语气较强的假设,译作“万一、“竟然,这时也可将 should 置于从句之首,即将 should 放在主语前面,而省略从属连词 if .例如: |