湖南省汝城二中2014届高考英语一轮复习阅读训练 (17)_高考复习指南

　　The author is mainly concerned with

　　A. describing how the principles of classical chemistry were developed.

　　B. initiating a debate about the kinds of chemical reaction required for the development of life.

　　C. explaining how current research in chemistry may be related to broader biological concerns.

　　D. clarifying inherent ambiguities in the laws of classical chemistry.

　　In which of the following ways are the mentioned chemical reactions and tunneling reactions alike?

　　A. In both, reacting molecules have to rise over the barrier between the two wells.

　　B. In both types of reactions, a transition is made from the bottom of one potential well to the bottom of another.

　　C. In both types of reactions, reacting molecules are able to go through the barrier between the two wells.

　　D. In neither type of reaction does the rate of a chemical reaction depend on its activation energy.

　　The author’s attitude toward the theory of a cold prehistory of life can best be described as

　　A. neutral. B. skeptical.

　　C. mildly positive. D. very supportive.

　　Which of the following best describes the hypothesis of Hoyle and Wickramasinghe?

　　A. Molecules of interstellar formaldehyde can evolve into complex organic molecules.

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