To explain the age differences among the globular clusters, astronomers are taking a second look at “renegade” theories. One such newly fashionable theory, first put forward by Richard Larson in the early 1970’s, argues that the halo of the Milky Way formed over a period of a billion or more years as hundreds of small gas clouds drifted about, collided, lost orbital energy, and finally collapsed into a centrally condensed elliptical system. Larson’s conception of a “lumpy and turbulent” protogalaxy is complemented by computer modeling done in the 1970’s by mathematician Alan Toomre, which suggests that closely interacting spiral galaxies could lose enough orbital energy to merge into a single galaxy.
143. The author of the passage puts the word “renegade” (line 29) in quotation marks most probably in order to
(A) emphasize the lack of support for the theories in question (B) contrast the controversial quality of the theories in question with the respectable character of their formulators (C) generate skepticism about the theories in question (D) ridicule the scientists who once doubted the theories in question(E) (E) indicate that the theories in question are no longer as unconventional as they once seemed
这里有几个问题不明白,请NN解答。谢谢先!
1. “renegade” theories这哪些theories?文章哪里提到过?
2. One such newly fashionable theory是不是指renegade theories的一个? |