Second, development for innovation indicates that the old is giving way to the new.

"Everything starts at the Expo" - this motto is a pointer to how the Expo thrives.

Since 1851, when the first Expo was held in the Crystal Palace in London, mankind has never faltered in innovation.

Every exhibit at the Expo has contributed to mankind's development.

Besides, increasing attention has been paid to issues related to social development. The themes of various Expos, ranging from "Celebrating Tomorrow's Fresh New Environment" of the first, to "Better City, Better Life" of the latest clearly illustrate peoples' understanding of development.

The Shanghai Expo is taking place at a time when the world is faced with the challenge of finding new models for development after the global financial crisis.

The Expo has given people across the world a forum to explore a healthier path, so that similar crises will not strangle it in the future.

Focusing on life in the city gives people a valuable opportunity to think deeply about the sustainable and harmonious development of future cities.

Historically, the Expo has offered a better development opportunity to the host nation. Asian hosts, such as Japan and the Republic of Korea, accelerated their processes of economic transformation after holding World Expos.

At the Expo Axis, which is the main entrance to the Shanghai Expo site, the six cone-shaped giant "Sun Valleys" are the most striking feature.

As the name suggests, these steel structures are where sunlight is absorbed and distributed underground, thus saving energy for artificial lighting.

Other new green technologies have also sprung up, such as the ground source heat pump system and the rainwater self-cleaning system. All these environment-friendly examples have shown that China has focused on green development for further progress.