1. Reason: Lin Zexu's Humen smoke caused Britain's dissatisfaction; Britain attempted to open China's market, dumping products, plundering raw materials, and turning China into its colony.

2, through:

June 1840, the British commander-in-chief and plenipotentiary Yiru led the troops arrived at the sea of Guangzhou, and according to the instructions of the British foreign minister Bamak Zun, the expeditionary force blockade Guangzhou, Xiamen (now belongs to the Fujian Province) and other places of the sea port, cut off China's overseas trade, and in July, the capture of Dinghai, Zhejiang Province (today's Zhoushan City) as a forward stronghold.

At this time, China's coastal areas, in addition to guangdong in lin zexu under the supervision of a little war preparedness, the rest are loosely guarded. in august, the British ship at an alarming rate of attack, arrived in tianjin, outside the mouth of the dagu, originally advocated war, the emperor of dao guang, saw the British ship approaching, deterred by the military might, began to waver, on August 20, 1840, the emperor of dao guang approved the answer to the book of the United Kingdom, qishan to convey to the British, allowing trade and punishment of Lin Zexu, in order to get the British ship withdrew to Guangzhou, and sent Qishan south to Guangzhou to negotiate.

In 1842, the Qing government was forced to negotiate with the British government in Nanjing's Jinghai Temple, the two sides *** in the temple four times. August 29, the Chinese Qing government accepted all the terms of the peace proposed by the United Kingdom, the British flagship "Khan Hua" (also translated as Cornwallis) formally signed the first unequal treaty in modern China. The first unequal treaty in modern China was signed on the British flagship, the Treaty of Nanking, which met most of Britain's demands.

3. Result: The Qing government was defeated and the Treaty of Nanjing, the first unequal treaty in modern Chinese history, was signed.

4. Impact:

①Political: After the Opium War, as China's sovereignty over its territory, territorial waters, justice, customs and trade began to be seriously undermined, it was gradually reduced from an independent and autonomous country to a semi-colony.

②Economic: Before the Opium War, the natural economy of self-sufficiency was dominant in China. After the Opium War, with the powers dumping products into China and the acquisition of Chinese silk, tea and other agricultural and sideline products, gradually involved China in the world market. China's natural economy gradually disintegrated and began to enter a semi-feudal society. This objectively promoted the development of China's commodity economy and favored the rise of Chinese national capitalism.

3 Ideological and cultural: after the Opium War, some intellectuals began to abandon the stereotypes, focus on the world, explore new knowledge, and seek ways to strengthen the country to protect against insults, and a new wave of thinking to learn from the West was born, which played a certain role in the impact of feudalism.

The First Opium War (First Opium War), often called the First Anglo-Chinese War (First Anglo-Chinese War) or the "War of Commerce", was a war waged by Britain against China from 1840 to 1842, and was the beginning of the modern history of China. It was also the beginning of China's modern history.

Although the war was only a part of the Opium Wars, it is sometimes often referred to as the Opium Wars. The war had been fought intermittently, with a series of battles and military campaigns in between that were unrelated to each other.?

In the early stages of the war, Chinese soldiers and civilians rose up to resist and dealt a heavy blow to the British invaders, but the corrupt feudal system could not resist the British invasion, and the war ended with China's defeat and reparation of money and land. The first unequal treaty in Chinese history, the Treaty of Nanjing, was signed.

China began to cede land to foreign countries, pay reparations and agree on tariffs, seriously jeopardizing China's sovereignty. The Opium Wars began to reduce China to a semi-colonial and semi-feudal society, losing its independence and promoting the disintegration of the natural economy. It also opened a new chapter in the history of the modern Chinese people's resistance to foreign aggression.

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