Peoplealways say that we lack of the eyes of realizing the beauty in life. I can'tagree complete. Last Friday, I woke up very early and decide to take a walk. Inthe square there many senior citizens were dancing, I found several elders buryin feeding birds. Without many cars, I realized the city looked so clean butbeautiful. Some coffee shops were decorated pretty well, which attracted oureyes. The whole city was covered with green trees, making it green city. Atthis moment, I found the city was so interested. How I regret ignore its beautybefore!
这是一篇短文改错题，看最后一句：How Iregret ignore its beauty before!
答案告诉我这句没错误。但我有2个疑问请教：
1）这是How引导的感叹句，以前没见过如此的句型，以前都是How+adj/adv...如此的感叹句。这种感叹句How的使用方法正不正确？
2）句尾before是副词，需要用完成时吧？应该说成How I have regretted its beauty before ! 吗？
How I regret ignore its beauty before! —— 这个句子有错误！错误在于 ignore 的形式错误。regret 之后应该接动名词，表示 “遗憾做过了某事”，说明做某事在先，遗憾在后。
regret 是静态动词，用一般目前时没问题，表示现有些一种认知意识。before 是修饰动名词 ignoring 的，与regret 无关。正确的表达是：
How I regret ignoring its beauty before!
其实，这个句子的错误，跟感叹句没关系。问题的实质就是 regret 后应该接动名词doing。
◆ 我给网友提供6个典型的How引导的感叹句。仔细领会它们的构成格式，最好背过它们。相信在你以后的英语学习中会有非常大用处。
（1）You aresilly. →How silly you are! 你多蠢啊！
（2）Tom isrunning fast. →How fast Tom is running! 汤姆跑得多快啊。
（3）You'vemade a wonderful plan. →How wonderful a plan you've made! 你制定的计划真好！
（4）Theyfought the enemy bravely. →How bravely they fought the enemy! 他们打敌人多勇敢啊！
（5）Time flies.→How time flies! 时间过得真快啊！
（6）They hate the bosses. →How they hate the bosses! 他们多么痛恨那些老板啊！
你的句子是否跟句（6）是一样的格式呢？
