part 2: 动词虚拟语气详解 英语动词有3种语气：陈述语气、祈使语气、虚拟语气

虚拟语气常用结构： It is suggested/demanded/required/proposed/requested/desired that…… 尚未成为事实的建议或要求，从句里的动词要用虚拟语气，即“should+动词原形”(v，have done, be done,be doing) eg 1: It is suggested that the plan (should) be ready by Wednesday. eg 2: It is required that she (should) go alone. eg 3: It is demanded that the salary (should) be increased. 变形1：eg 3:We suggest (that) the meeting be postponed. eg 4:We demand (that) our work hours be shortened. 变形2:这类动词派生的名次，也要求有关从句动词用虚拟语气 eg 5: Our suggestion is that the project be revised.