十三、阅读短文，完成下列各题。(14分)
A
Tong Dizhou: a scientist who tried his best
Tong Dizhou was a famous Chinese scientist. When he was young, he was not good at study. In his first term, he only got 45 on average. The headmaster asked him to leave the school. Tong begged to stay, and the school let him try for one term.
Tong worked very hard. He got up early and read under a street light. At night, he still studied. After half a year, he caught up with his classmates. He got 100 in Maths. He said to himself, “If I try my best, I can do it.”
Years later, Tong Dizhou studied in Europe. He did a difficult experiment—to take off the skin of a frog’s egg. The professor asked students to do it but they failed. Tong was not afraid. He tried and he succeeded(成功). The professor said, “You are so talented!”
(一)阅读短文，选择正确的答案。(6分)
()1. What did the headmaster want Tong Dizhou to do at first?
A. To get 100 in Maths. B. To leave the school. C. To study in Europe.
()2. How did Tong Dizhou catch up with his classmates?
A. He asked the professor for help. B. He got up early and studied hard. C. He only studied Maths.
()3. What difficult experiment did Tong Dizhou do in Europe?
A. To read under a street light. B. To get 45 on average. C. To take off the skin of a frog’s egg.
()4. What does the story tell us?
A. When we meet with difficulties, we should try our best. B. We should give up when things are difficult. C. Only smart people can become scientists.
(二)阅读短文，回答问题。(2分)
According to the passage, why did Tong Dizhou become a great scientist?