1. In the passage, the author is primarily interested in主题题
suggesting an alternative to an outdated research method
introducing a new research method that calls an accepted theory into question
emphasizing the instability of data gathered from the application of a new scientific method
presenting a theory and describing a new method to test that theory问题解决型,主题题不考虑延伸性内容
initiating a debate about a widely accepted theory
2. The author of the passage would be most likely to agree with which of the following statements about the Milankovitch theory?看似信息题,实为态度题
It is the only possible explanation for the ice ages.
It is too limited to provide a plausible explanation for the ice ages, despite recent research findings.
It cannot be tested and confirmed until further research on volcanic activity is done.
It is one plausible explanation, though not the only one, for the ice ages.正评价,但不是唯一可行的理论
It is not a plausible explanation for the ice ages, although it has opened up promising possibilities for future research.
3. It can be inferred from the passage that the isotope record3 taken from ocean sediments would be less useful to researchers if which of the following were true?改善题的变体
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