《2025年新课程暑假作业本七年级综合A版山西教育出版社》

1. When was Yuan Longping born?
He was born in 1930.
2. Why was rice a big problem in China in the past?
Because China has 22% of the world's population, but only 7% of its farmland.
3. When did a new type of hybrid rice come out?
In 1973.
4. What did Yuan hope to do before he retired?
He hoped to grow rice in the sea.

答案： 1. He was born in 1930.
2. Because China has 22% of the world's population, but only 7% of its farmland.
3. In 1973.
4. He hoped to grow rice in the sea.