"Three grams of radium" tells the story that Madame Curie had three grams of radium in her life, and shows the world the great personality of Madame Curie as a scientist: even for the sake of science, you can't take scientific research results for yourself. This is another contribution made by Madame Curie while contributing radium to mankind.
Madame Curie's three grams of radium, the first gram was extracted by herself; The second is Mrs. maloney, an American journalist, who runs around among American women for promotion and is donated to her by the American public. The third gram of radium was also donated by the American public. Madame Curie, as the discoverer of radium, was not only not as rich as the American journalists inferred, but also so poor. It is precisely because Madame Curie did not take the patent right of radium for herself, but dedicated it to all mankind.
A passage in Madame Curie's autobiography is difficult to understand. She said, "Human beings need people who are brave in practice. They can get great gains from their work, not forgetting the public welfare, but also safeguarding their own interests. However, human beings also need dreamers and selflessness, which shows two attitudes towards life: one is not forgetting the welfare of the public, but also safeguarding their own interests; One is a selfless idealist who is obsessed with his career. Both kinds of people are beneficial to society. Madame Curie also affirmed the former. But Madame Curie obviously belongs to the latter. She has contributed everything to science and all mankind. Patent right is the right granted by the state to the inventor to exclusively exploit his invention and creation. When the Curies extracted the first gram of radium, they announced the purification method of radium without reservation and gave up the patent. Even if the American public donated two grams of radium to her, one gram for scientific research and one gram for establishing a radium research institute for the motherland, it would have no effect on her. This is where her great personality lies!
The purpose of writing this article is to let students experience the great personality charm of scientists through the study of the text, and get infected and educated from it; The second is to implement the training plan of this group and guide students to think away from Madame Curie's case.
Second, learning objectives
1. Read the text correctly, fluently and emotionally.
2. Understand Madame Curie's great personality.
Third, teaching suggestions
1. Let the students learn by themselves according to the reading tips. When checking the reading situation, teachers should give appropriate guidance to inspire students to grasp the content of the text in an orderly way around the different sources of three grams of radium, and think and ask questions about the content they are interested in or don't understand. On the basis of grasping the main content of the text, we find some problems that are of great significance to understanding the characters and understanding the thoughts and feelings of the text.
2. Two sentences said by Madame Curie are not easy to understand. In teaching, let students ask questions about learning and understanding these two sentences, sum up everyone's questions, and then let students discuss with their own feelings. In the process of discussion and speculation, I realized Madame Curie's great personality and received education from it.
Madame Curie's deeds are very touching. There are some profound words in her autobiography. On the basis of reading comprehension, guide students to connect with practice. Students can think of many selfless people and things, and they may also think of those shameful and selfish people. Students should be encouraged to speak their minds and express their true feelings.
4. In teaching, teachers can ask students to supplement the information they collected about Madame Curie, which can arouse their interest in reading and make students understand the text better; Second, the organic combination of in-class and out-of-class can broaden the channels for students to learn Chinese.
Fourth, reference materials.
Madame Curie (1867— 1934) was originally named Maria Skoro, Madoff skaya. French physicist and chemist. Originally from Poland. She studied radioactivity with her husband pierre curie. Radioactive element radium was found in1903; Later, another radioactive element polonium was discovered, for which she won the Nobel Prize twice and was regarded as the most outstanding female scientist in the 20th century. She has two excellent daughters. Irena, the eldest daughter, is an outstanding scientist. She won the Nobel Prize in Chemistry in 1937. Eve, the youngest daughter, is a famous music educator and biographer. She is the author of Biography of Madame Curie.
Mrs maloney is a famous American journalist and editor-in-chief of new york Women's Magazine.
Radium is a radioactive metal element, which is silvery white, shiny and highly radioactive, and can continuously release a lot of heat. Radium has strong radiation penetration, can destroy animal tissues and kill bacteria, and can be used to treat cancer or skin diseases.
192 1 When Madame Curie was invited to visit the United States, the President of the United States gave her a gram of radium (worth more than one million dollars) donated by the public, which was exactly what she needed. Before the presentation ceremony, when she saw the words "presented to Madame Curie" written on the "presented certificate", she was unhappy. She declared: "This certificate needs to be revised. This gram of radium given to me by the American people should always belong to science, but if it is written like this, this gram of radium will become private property and the property of my daughters. This is absolutely impossible. " The organizer hired a lawyer to modify the certificate that night, and Madame Curie signed the "gift certificate".