题目内容：

Yuan Longping is one of China's most famous scientists. 1.(work) the land to do his research, he considers himself a farmer. Indeed, his sunburnt face and arms and his slim, strong body are just like those of millions of Chinese farmers, 2. he has struggled for the past five decades. When he was young, he saw many people dying of 3. (hungry), which was a 4.(disturb) problem in many parts of the countryside. Then, he devoted all his time and energy 5.searching for a way to increase rice harvests without expanding 6. area of the fields. In 1973, he became the first agricultural pioneer in the world 7. (grow) rice that has a high output. Now, he remains 8.(circulate) his knowledge in many less developed countries to increase their rice harvests. He is quite 9.(satisfy) with his life. However, he doesn't care about being famous. He feels it gives him less freedom to do his research. In his view, spending money on himself or 10. (lead) a comfortable life means very little to him. He therefore gives much money to equip others for their research in agriculture.