In 1995 the Galileo spacecraft captured data about Jupiters atmosphere—namely, the absence
of most of the predicted atmospheric water—that challenged prevailing theories about Jupiters
structure. The unexpectedness of this finding fits a larger pattern in which theories about
planetary composition and dynamics have failed to predict the realities discovered through
space exploration. Instead of normal planets whose composition could be predicted by theory,
the planets populating our solar system are unique individuals whose chemical and tectonic
identities were created through numerous contingent events. One implication of this is that
although the universe undoubtedly holds other planetary systems, the duplication of the
sequence that produced our solar system and the development of life on Earth is highly
unlikely.
Recently planetary scientists have suggested that the external preconditions for the
development of Earth’s biosphere probably included four paramount contingencies. First, a
climate conducive to life on Earth depends upon the extraordinarily narrow orbital parameters
that define a continuously habitable zone where water can exist in a liquid state. If Earths orbit
were only 5 percent smaller than it is, temperatures during the early stages of Earths history
would have been high enough to vaporize the oceans. If the Earth-Sun distance were as little
as 1 percent larger, runaway glaciation on Earth about 2 billion years ago would have caused
the oceans to freeze and remain frozen to this day. Second, Jupiter’s enormous mass prevents
most Sun-bound comets from penetrating the inner solar system. It has been estimated that...
third...
1. The passage is primarily concerned with
A. enumerating conditions that may have been necessary for a particular development
B. outlining the conditions under which scientists may be able to predict certain events
C. explaining how a particular finding affected scientists understanding of a phenomenon
D. suggesting reasons why a particular outcome was more likely to occur than other possible
outcomes
E. assessing the relative significance of factors that contributed to a particular occurrence
答案A;
D为啥不对?
D suggesting reasons why a particular outcome was more likely to occur than other possible outcomes
A是对的很明显,但是D很迷惑? 地球产生依靠abcde多个原因,所以有这个结果而不是其他的,也说明它不可复制。正是因为这几个原因才导致了地球的产生而不是产生其他结果,所以说它不可复制。
我的理解或者逻辑是不是有啥问题.. ..... T T
原文:Modern feminism has brought the reputation of the English writer Mary Wollstonecraft
(1759-1797) to something approaching the luster it deserves. While she enjoyed a certain
celebrity among political radicals in the years just after her death, beginning in the nineteenth
century her fame as a writer was hidden by disproportionate attention to her unconventional
and, at the time, shocking personal life. When, therefore, Virginia Woolf wrote in 1925 of
Wollstonecraft’s A Vindication of the Rights of Men and A Vindication of the Rights of Woman that
they felt like books so true that they seem now to contain nothing new in them, it was more a
wishful than an accurate statement of the case. Wollstonecraft’s advances in moral thinking
still have the power to shock position-takers of every party. The importance of gender even
today is said to cut across other criteria for judging the conduct of men and women in society;
Wollstonecraft, by contrast, believed that the shared morality of men and women should cut
across all specifications of gender
3.The passage suggests that which of the following is true concerning Virginia Woolf’s
appraisal of A Vindication of the Rights of Men and A Vindication of the Rights of Woman?
A. Woolf was defending Wollstonecraft’s theories against attacks by nineteenth—century critics who concentrated only on Wollstonecraft’s notoriety.
B. Woolf favored the advances proposed by Wollstonecraft and mistakenly assumed that they had become self-evident in the twentieth century.