要写一篇介绍长江的作文（用英语写）,单词不限,谢谢了

Yangtze River Cruises
With 40 million years history of the life and 50,000 years history of human civilization,Yangtze River,a mother river of the Chinese people,brings up billions of Huaxia people.
The Yangtze River (Changjiang),over 6,300 kilometers (3.915 miles) long,is the largest and longest river in China and the third-longest in the world,next only to the Nile in northeast Africa and the Amazon in South America.The headwaters of the Yangtze River,situated at an elevation of about 16,000 feet,lies to the west of Geladandong Mountain,the principal peak of the Tanggula Mountain chain in the Qinghai-Tibetan Plateau,southwest of China.The river runs through Mt.Wu covering with frog,absorbing thousands of rivers,and finally reaches the Pacific.It passes by mountains,gorges,hills,plains,with changing scenes on different geographic shape.This extensive waterway cuts through the heart of China,marking the division of China into north and south,both geographically and culturally.Not only are five of China's largest cities (Shanghai,Wuhan,Chongqing,Chengdu,and Nanjing) on or near the river,but the 1.8 million square km Yangtze River basin is also home to 1/3 of Chinas population (400 million).
Yangtze River lies on the mid-latitude area,and the four seasons are distinctive.With average temperatures reaching 30°C (86℉) in July and only 10°C (50℉) in January,spring and autumn are the best seasons for making the river cruises.Because of the tall mountains and gorges,the long and narrow valleys seldom get enough sunshine and feature strong wind,therefore the valley is humid and often shrouded in cloud and mist.In summers,dramatic thunderstorms and torrential rains often happen and heavy rainfalls cause the high water between July and September on the cruising itineraries.The best time in terms of price is in winter however the weather must be considered for the winters are short and cold.
The most impressive section of the river is the three Yangtze River gorges:Qutang Gorge,Wu Gorge and Xiling Gorge,collectively known as Sanxia,or the Three Gorges.It stretches 192 kilometers - from Baidicheng (White Emperor City) in Chongqing in the west to Yichang in Hubei Province in the east.It's the best scenic part of the Yangtze River,as well as the best in China's landscape.