Dr．Yuan was born in Beijing in 1930．（1）SinceSince he graduated from Southwest Agricultural College in 1953，he has given his life to（2）findingfinding （ 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（3）aaserious problem in many parts of the country．Dr．Yuan searched （4）forfor 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，（5）howeverhowever，nearly two hundred million tons of rice（6）was producedwas produced （ produce ）．These increased harvests mean that 22% of the （7）world'sworld's（ 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（8）to increaseto increase （ increase ） their rice harvests．Thanks to his research，the UN is trying to rid the world of （9）hungerhunger （ hungry ）．Using his hybrid rice farmers are producing harvests twice （10）largerlarger （ large ） than before．
【考點】政治．
【答案】Since；finding；a；for；however；was produced；world's；to increase；hunger；larger
【解答】
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發(fā)布：2024/4/20 14:35:0組卷：41引用：2難度：0.5
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