Yucun, is a small mountainous village in Anji county, Zhejiang province. Yucun is a small mountainous village in Anji county, Zhejiang province.

In 2005, Xi Jinpin,g, the general secretary of the CCP of Zhejiang province, visited the village and put forward the famous “Ttwo Mmountainous Ttheory”:," which posits that lucid waters and lush mountainous are invaluable assets. In 2005, Xi Jinping, the general secretary of the CCP of Zhejiang province, visited the village and put forward the famous “two mountains theory," which posits that lucid waters and lush mountains are invaluable assets.

The verb "posits" is a bit more formal, but it seems appropriate in this case. "Mountainous" is an adverb that I've only ever heard used to describe geography. (E.g., "This animal lives in the mountainous regions of China.")

With fifteen years of development, Yucun has become the model of beautiful village construction and got a lot of series ofreceived many honors. With fifteen years of development, Yucun has become the model of beautiful village construction and received many honors.

The “two mountain theory” has spread to the whole country now, and Yucun has become a model for rural learning in China. The “two mountain theory” has spread to the whole country now, and Yucun has become a model for rural learning in China.

It's a little unclear what you mean by "rural learning." Maybe "rural development" would make more sense?