There was once a famous scientist who made several important 【小题1】 (discover). Once when 【小题2】 (ask) how he was able to be so creative, he replied that it all came from an experience he had with his mother when he was two years old. He 【小题3】 (try) to take a bottle of milk out of the refrigerator when the bottle was so slippery that he dropped it. His mother came in, seeing the kitchen floor covered with milk. Instead of shouting at him, she said, “Robert, what 【小题4】 great and wonderful mess you have made! Would you like to play in the milk for a few minutes 【小题5】 we clean it up?” So he did. After they cleaned it up together, his mother said, “This was a failed experiment in how 【小题6】 (carry) a big bottle of milk with two tiny hands. Let’s try again and see if you can find a way to carry it without 【小题7】 (drop) it.” The little boy learned that if he held the bottle at the top near the lip with both hands, he could carry it 【小题8】 (he). What a wonderful lesson! The scientist then added that it was at that moment 【小题9】 he knew mistakes are just opportunities to learn something new and 【小题10】 (value) — which is, after all, what scientific experiments are all about.

“Father of hybrid rice” Yuan Longping 【小题1】   ( pass) away at 13:07 pm in Changsha of Hunan province, Xinhua reported 【小题2】Saturday. Yuan Longping(1930-2021) was a pioneer for all people. Although he was one of China's most famous【小题3】(science), Yuan Longping considered 【小题4】 ( he) a farmer.Indeed,his sunburnt face and arms and his slim,strong body were just like those of millions of Chinese farmers,for whom he had struggled for decades. Dr Yuan Longping developed super hybrid rice. In 1974,he became【小题5】 first agricultural pioneer in the world【小题6】( grow) rice with a high output.Now more than 60% of the rice 【小题7】(produce) in China each year is from this hybrid strain.

In 1949, Yuan applied for Southwest Agricultural College and began his special 【小题8】 (connect) with rice--a staple food of the Chinese people that would become the focus of his lifelong research career.

Now the focus of Yuan's hybrid rice project【小题9】 ( change) from increasing output to green and sustainable development 【小题10】  is strong and tall enough.The second dream is that the whole world can plant the rice he developed and all the people in the world  are not hungry.

Let's remember the great man.

Zu Chongzhi was one of the greatest mathematicians (数学家) in ancient China. From a young age, Zu was 【小题1】(teach) natural science, astronomy, math and so on. The little boy was 【小题2】 (interest) in all of these subjects, especially in 【小题3】.

Zu was best known for his calculation of pi (π). According to the record, he did all the work 【小题4】 (use) nothing but wooden sticks.

【小题5】 took him lots of time to work out the value between 3.1415926 and 3.1415927. No one at that time was able to do 【小题6】 (good) than him. And now the 【小题7】 (achieve) is still praised by people around the world.

Zu was successful not only in math, but also in astronomy. He worked out that a year should be 365.24281481 days long and created the Daming Calendar. However, government officials at that time did not agree 【小题8】 him. Almost ten years after his death, the new calendar was 【小题9】 (final) accepted and put into use. He was an inventor, too. He once made a vehicle 【小题10】 carried a pointer. No matter how the vehicle turned, the pointer always pointed to the south.