Yuan Longping is one of the most important agricultural （1）

scientists

scientists

（scientist）.He had spent his whole life on hybrid rice.
    Born in 1930，Dr.Yuan graduated from Southwest Agricultural College in 1953.As a young man，he saw the great need for （2）

increasing

increasing

（increase） the rice output（產(chǎn) 量）.Food was a big problem in China in the past.In the 1960s，China had serious hunger.Millions of people （3）

died

died

（die） because they had no food.Yuan Longping was very sad （4）

to see

to see

（see） this.He decided to work on a new kind of hybrid rice that had high output.He and his team studied the rice day and night.
    At last，in 1973，they grew a new kind of hybrid rice.This rice is strong.Farmers can grow it in many different kinds of farmland and also in bad weather.Its output is much （5）

highter

highter

（high） than common kinds rice.In 1974，he became the （6）

first

first

（one） pioneer in the world to grow rice that has a high output.Now more than 60% of hybrid （7）

is produced

is produced

（produce） in China.He had so much（8）

success

success

（success）that he was called the "Father of Hybrid Rice" and won World Food Prize.And he is （9）

simply

simply

（simple） a hero for all the people in the world.
    Although Yuan Longping is a very famous scientist，he still considered （10）

himself

himself

（he） as a farmer.Yuan Longping has already left us，but he will be remembered forever.