2、
(1) Silkworms work doggedly and diligently, and so does Madame Curie.
(2) Persevere and find out the reasons;
3、
(1) People who pursue reality strive to get the greatest return in their work, while dreamers are so attracted by the progress of a selfless career that they have no leisure and enthusiasm to pursue material interests.
(2) For those who pursue reality, Madame Curie thinks that human beings need them; For dreamers, Madame Curie thinks that we should cherish a free life.
4、
(1) emphasizes the characteristics of scientists' concentration and curiosity.
(2) Let scientists, like children, be immersed in natural scenery, as if fascinated by fairy tales.
5. Perseverance, self-confidence, dedication, not seeking fame and fortune,