2013年12月大学英语六级考试虚拟语气讲解20
2013年12月大学英语六级考试虚拟语气讲解20
虚拟语气用在It is（about ／high）time ＋that定语从句中
在It is（about／high）time ＋that定语从句中需用虚拟语气，表示“该做……的时候了”，其动词形式用一般过去时或should ＋动词原形。
(1).It's already 5 o'clock now．Don't you think it's about time we went home？现在已经5点钟了，你不认为我们应该回家了吗？
(2).It is about time you were in bed.
(3).It is high time we left.
(4).It is the first time I came here.
注：
1、在this is the first time ／second time that．．．句型中，从句中谓语动词用陈述语气完成时态。
例如：
Is this the first time that you have visited Hongkong？这是你第一次参观香港吗？
2、It's time to do something有别于It's time that．．．
