假如上周末,你和你的父母一起去游览了长城.请你有英语写一篇不少于40词的短文.内容提示：1.你们带了食物和饮料,早晨乘汽车去长城.2.走在长城上,你联想到了长城的悠久历史,父亲还讲了有关长城的事情.3.你看到了许多外国朋友,这一天你们过得很愉快.

The Great Wall of China is a Chinese fortification built from the 5th century BC until the beginning of the 17th century,in order to protect the various dynasties from raids by Hunnic,Mongol,Turkic,and other nomadic tribes coming from areas in modern-day * and Manchuria.Several walls,also referred to as the Great Wall of China,were built since the 5th century BC,the most famous being the one built between 220 BC and 200 BC by the first Emperor of China,Qin Shi Huang; this wall was located much further north than the current wall built during the Ming Dynasty,and little of it remains.
The Great Wall of China was originally a project of Qin dynasty designed to keep out the nomadic Xiongnu invaders from the north.Some of the wall was built during the Qin,but most of it that we see today was constructed during the Ming dynasty.
The Great Wall is the world's longest man-made structure,stretching over a formidable 6,352 km (3,948 miles),from Shanhai Pass on the Bohai Sea in the east,at the limit between "China proper" and Manchuria (Northeast China),to Lop Nur in the southeastern portion of * Uygur Autonomous Region .Along most of its arc,it roughly delineates the border between North China and Inner *.See List of largest buildings in the world
Great Wall is all the Chinese pride!
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The Great Wall of China,also known in China as the Great Wall of 10,000,is an ancient Chinese fortification built from the end of the 14th century until the beginning of the 17th century,during the Ming Dynasty,in order to protect China from raids by the Mongols and Turkic tribes.It was preceded by several walls built since the 3rd century BC against the raids of nomadic tribes coming from areas now in modern day * and Manchuria.The Wall stretches over a formidable 6,350 km (3,946 miles),from Shanhai Pass on the Bohai Gulf in the east,at the limit between China proper and Manchuria,to Lop Nur in the southeastern portion of * Uygur Autonomous Region.
The first major wall was built during the reign of the First Emperor,the main emperor of the short-lived Qin dynasty.This wall was not constructed as a single endeavor,but rather was created by the joining of several regional walls built by the Warring States.It was located much further north than the current Great Wall,and very little remains of it.A defensive wall on the northern border was built and maintained by several dynasties at different times in Chinese history.The Great Wall that can still be seen today was built during the Ming Dynasty,on a much larger scale and with longer lasting materials (solid stone used for the sides and the top of the Wall) than any wall that had been built before.The primary purpose of the wall was not to keep out people,who could scale the wall,but to insure that semi-nomadic people on the outside of the wall could not cross with their horses or return easily with stolen property.