By the first century A. D., historians say, the Chinese had some knowledge of the winds and currents of the Pacific. When weather prevented the Chinese from navigating by the sky their mariners(水手) used magnetized(磁化) needles to guide them. Because the sailors had no level surface on their rocking ship, they floated the needle in a shallow bowl of water, and the compass that guided explorers to day was born.
Between 1450 and 1433, Emperor Chu Ti’s Treasure Fleet of the Dragon Throne ruled the entire south Pacific and the Indian Ocean, collecting gifts and tributes (贡品) for the Emperor throughout a territory that ranges from Korea and Japan to Eastern coast of Africa. The Admiral Cheng Ho began the first of seven voyages in 1405. The purpose of the first voyage was to hurt the former emperor who had been dethroned and escaped. The admiral’s fleet, which was made up of 62 large junks and 255 smaller ships, recaptured the deposed emperor and also defeated
A. The Chinese sailors knew the winds and currents of the Pacific much earlier than the westerners.
B. The Chinese sailors used the compass to guide their voyage.
C. The Chinese sailors knew how to make rocking ship's surface level
D. The compass the Chinese mariners used had magnetized needles.
By the first century A. D., historians say, the Chinese had some knowledge of the winds and currents of the Pacific. When weather prevented the Chinese from navigating by the sky their mariners(水手) used magnetized(磁化) needles to guide them. Because the sailors had no level surface on their rocking ship, they floated the needle in a shallow bowl of water, and the compass that guided explorers to day was born.
Between 1450 and 1433, Emperor Chu Ti’s Treasure Fleet of the Dragon Throne ruled the entire south Pacific and the Indian Ocean, collecting gifts and tributes (贡品) for the Emperor throughout a territory that ranges from Korea and Japan to Eastern coast of Africa. The Admiral Cheng Ho began the first of seven voyages in 1405. The purpose of the first voyage was to hurt the former emperor who had been dethroned and escaped. The admiral’s fleet, which was made up of 62 large junks and 255 smaller ships, recaptured the deposed emperor and also defeated
A. Cheng Ho died on the way of his last voyage
B. Cheng Ho ended his seventh voyage in 1433
C. the disappearing of China's economic domination of the South Pacific led to Cheng Ho's death
D. it took Cheng Ho 30 years to visit 37 countries
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