—Who helped you with your English?

—_______! I learned it all by myself.

    It was a hot summer day. The sun was shining brightly and all could think of was1down with a scoop of my favorite ice cream. I decided to make a quick2to the newly opened ice cream parlor (冰淇淋店) close by for a mid-day3.

    As soon as I arrived there, I 4my ice cream in a fancy cone and asked the server to5two tubs of chocolate ice cream for folks at home.

    While waiting for my take-out, I was halfway through my icy treat and was enjoying the view of the two colorfully6ice cream flavors, sitting pretty one next to the other.

    Now that my to-go order was7, I headed to the payment counter to settle the bill. Surprisingly, the cashier had forgotten to8my ice cream,9only for the two tubs.

    The next few10passed by as I11between doing what was easy—clearing the bill and moving out, and doing what was right—12 the error. I knew if I didn't bring the error in the bill to his13, my ice cream would be charged against his14.

    That moment, my decision was made and I went and told him what he had 15. He looked at me in 16 and thanked me profusely for telling the error. Had it not been for my 17telling the error, he would have been 18. The smile of relief on his face made me smile, too.

    I came out of the ice cream parlor feeling really19about myself. I knew that day how wonderful it feels to do what is right20what is easy.

上海世博会中国馆由国家馆和地区馆两部分组成，在国 家馆的设计中使用了传统建筑斗拱榫卯结构，中国传统的斗拱曲线被拉直，这种简约化的装饰线条，完成了传统建筑的当代表达。同时，中国馆的设计为人们之间的自由交流提供了充分的开放空间。而这种开放性、公共性的现代意识，是国际建筑设计中的重要理念。中国馆的设计还融入了环境保护与能源节约时代课题。

运用意识能动作用的知识对中国国家馆的设计和建设加以分析。