科技英语阅读翻译科英语阅读翻译.doc

Unit 2 Physics 1. Directions: Work on your own and fill in the blanks with the main idea. Part 1 (Paras. 1-3): Brief introduction to dark energy Para. 1: Dark energy is an unexplained force which tugs galaxies away from each other. Para. 2: Dark energy is somewhat like anti-gravity. Para. 3: Dark energy is scientists’ hypothetic form of energy to explain the universe’s expansion. Part 2 (Paras. 4-9): The discovery of dark energy: confounding expectations Para. 4: The discovery of dark energy is a case of science confounding expectations. Para. 5: Experts expected that gravity had slowed down the universe’s rate of expansion. Para. 6: The universe’s rate of expansion was speeding up. Para. 7: The result was beyond experts’ expectations which caused much nervous laughter. Para. 8: The measurements of supernovae provided the evidence that the universe’s rate of ballooning was speeding up. Para. 9: The scientists observed many supernovae at different distances to determine how fast they are speeding away from us. Part 3 (Paras. 10-13): The rate of the expansion of the universe: shocking results Para. 10: The rate of the universe’s expansion is accelerating. Para. 11: More researches done by other experts also show the same results. Para. 12: Einstein’s cosmological constant has been revived to explain the puzzling findings. Para. 13: The cosmological constant is one of the leading theories to explain the expansion of the universe. Part 4 (Paras. 14-17): The difference between dark energy and dark matter Para. 14: The confusion of dark energy and dark matter. Para. 15: Dark matter is an invisible hypothesized form of matter. Para. 16: Dark matter and dark energy seem to make up most of the mass of the universe. Para. 17: The discovery of dark energy stirred up a lot of other issues, such as making some people believe that there are several universes. 2. Directions: Complete the sentences with the words given in the brackets. Change the form if necessary. Skin injury, inf