内容预览：

（2） it作形式主语，从句作真正主语的常见句式有：① It is + n. (a pity / no wonder ... ) + that ... “……是遗憾的 / 难怪”。例如：It is a pity that youve missed such a good chance.  你错过了这样一个好机会，真是遗憾。② Its (about / high) time (that) ...意思是“到了某人该做某事的时候了”，从句中谓语动词用一般过去时或should + 动词原形。例如：Its about time that we should get up. 到了我们该起床的时候了。③ It struck me / occurred to me that ... 表示 “我突然……