阅读短文，根据上下文和所给的首字母写出所缺单词。注意使用正确形式，每空限填一词。答卷时，要求写出完整单词。

    Yuan Longping (1930-2021) is known as the father of hybrid rice (杂交水稻). Seeing people die of hunger when he was young, Yuan decided to find a way to (46) i_________ rice production and fill people’s bowls. In 1973, he finally developed the first hybrid rice. Yuan helped China work a great wonder — feeding nearly one-fifth of the world’s population with (47) L_________ than 9% of the world’s total farmland, He not only made a big difference to the lives of the (48) C_________ people, but also many in other countries. To this day, hybrid rice has been grown in over 40 countries.

    “I have two (49) d_________. One is to enjoy the cool under the tall rice, and the other is to grow hybrid rice across the world,” Yuan said. And he worked till the (50) e_________ of his life to make them come true.