Question

I didn’t see your sister at the meeting. If she __________, she would have met my brother. A..

I didn’t see your sister at the meeting. If she __________, she would have met my brother. A．has come B．did come C．come D．had come

Answer 1

D

试题分析：考查虚拟语气。本题考查的条件句的虚拟语气，是与过去事实相反，条件句中使用“过去完成时”；主句使用“情态动词+have done”句意：我在会议上没有看见你的姐姐，如果她来参加会议，她就会遇见我的兄弟的。根据前句的didn’t see，说明本句是与过去事实相反的虚拟语气，故D正确。 点评：if的虚拟语气非常重要，简要概括如下：1、表示与现 在事实相反的情况，从句：If主语+过去时(Be动词用were)；主句：主语+should/would/could/might+do：　2、表示与过去事实相反的情况，从句：If主语+had+done；主句：主语+should/would/could/might+have done　3、表示对将来情况的主观推测，从句：①if+主语+were to do②if+主语+should+do ③if+主语+did（动词过去式）/were ；主句：主语+should/would/could/might+do