Dr. Marie Curie is known to the world as the scientist who discovered radioactive metals i

Dr. Marie Curie is known to the world as the scientist who discovered radioactive metals i.e. Radium and Polonium.
Marie Curie was a Polish physicist and chemist. Together with her husband, Pierre, she discovered two new elements and studied the x-rays they emitted. She found that the harmful properties of x-rays were able to kill tumors. By the end of World War I, Marie Curie was probably the most famous woman in the world. She had made a conscious decision, however, not to patent methods of processing radium or its medical applications.
Marie Curie was born on November 7, 1867 in Poland and died on July 4, 1934. Her co-discovery with her husband Pierre Curie of the radioactive elements radium and polonium represents one of the best known stories in modern science for which they were recognized in 1901 with the Nobel Prize for Physics. In 1911, Marie Curie was honored with a second Nobel prize, this time for chemistry, to honor her for successfully isolating pure radium and determining radium's atomic weight.
As a child, Marie Curie amazed people with her great memory. She learned to read when she was only four years old. Her father was a professor of science and the instruments that he kept in a glass case fascinated Marie. She dreamed of being a scientist, but that would not be easy. Her family became very poor, and at the age of 18, Marie became a governess. She helped pay for her sister to study in Paris. Later, her sister helped Marie with her education. In 1891, Marie attended the Sorbonne University in Paris where she met and married Pierre Curie, a well-known physicist.
Marie Curie contributed greatly to our understanding of radioactivity and the effects of x-rays. She received two Nobel prizes for her brilliant work, but died of leukemia, caused by her repeated exposure to radioactive material.
【小题1】The underlined word “emitted” in the 2nd paragraph means    .A．gave offB．gave awayC．set outD．set off【小题2】According to the passage, which order of the following is right?
① Marie Curie worked as a governess. ② Marie Curie met and marry Pierre Curie.
③ Marie Curie learned to read. ④ Marie Curie was honored with a second Nobel Prize.
⑤ Marie Curie discovered radium.A．①②③④⑤B．③①②⑤④C．①②③⑤④D．③①②④⑤【小题3】 When did Marie Curie win a Nobel Prize for a chemistry?A．In her twentiesB．In her thirtiesC．In her fortiesD．In her fifties【小题4】What does the passage mainly talked about?A．Marie Curie discovered radiumB．Marie Curie, a famous chemistC．Marie Curie won two Noble PrizesD．The brief biography of Marie CurieB