Dr. Yuan was born in Beijing in 1930. 61 he graduated from Southwest Agricultural College

Dr. Yuan was born in Beijing in 1930. 61 he graduated from Southwest Agricultural College in 1953, he has given his life to 62 ( find ) ways to grow more and more rice.

As a young man, he saw the great need for increasing the rice output. At that time, famine was 63 serious problem in many parts of the country. Dr. Yuan searched 64 a way to increase rice harvests without expanding the area of fields. In 1950, Chinese farmers could only produce fifty million tons of rice. Last year, 65 , nearly two hundred million tons of rice 66 ( produce ). These increased harvests mean that 22% of the 67 ( world ) people

are fed from just 7% of the farmland in China. Dr. Yuan is now circulating his knowledge in India, Vietnam and other less developed countries 68 ( increase ) their rice harvests. Thanks to his research, the UN is trying to rid the world of 69 ( hungry ). Using his hybrid rice farmers are producing harvests twice 70 ( large ) than before.

答案

61.Since

62.finding

63.a

64.for

65.however

66.was produced

67.world’s

68.to increase

69.hunger

70.larger

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