hahahaha ! why not talk first with passion and emotion! maybe you meet a shy girl!

national feelings only break out  when you meet a foreign person no matter what arrogant or weakness. patriot is a feeling for your country that you can damn it or fuck it hundreds of times but couldn't  hear  a bad word from people another country.
For chinese,  most of people lived in backwater village are apathy and ingorance  of the patriotism.

a active sentence more emphasized on subject as well as a passive sentence more emphasized on object. so the speaker nomorally key in the object when used word "被". it's the obvisily difference of two sentence.

It was said that clean energy technology is popular in this World Expo, however, I dont know what's the meaning ot the clean energy technology (is also called Low Carbon life ). On the other sides, the 3G technology is also technology pioneer at this times. for me, technology is just cell phone can be internet the web and also link to the bank(for the pay for the phone bill), is notebook linked to the world(for you and me on here) although we dont know each other.

I understand your feeling, compare with the study of enlish, chinese will be hard and complex.  the character and  sentencens is more  difficult.