1. Key points of the answer: ① Write that the disaster caused by the typhoon attack is very serious, and ② pave the way for the performance of Chen Yiling's disaster relief (revealing the ideological quality of the protagonist Chen Yiling).

2. Examples of answers: ① Professor Su Lin carefully studied Chen Yiling's application form and felt that it could not be handled simply, so he went to Chen Yiling's house to learn the truth himself. It can be seen that he is a talented (serious and responsible) person.

3. Key points: Professor Su Lin was moved by Chen Yiling's kindness, sincerity and disregard for personal interests.