Prior to 1965 geologists assumed
that the two giant rock plates meeting at
the
Line through friction as they grind past each
(5) other, but in 1965 Henyey found that
temperatures in drill holes near the
fault were not as elevated as had
been expected. Some geologists
wondered whether the absence of
(10) friction-generated heat could be
explained by the kinds of rock com-
posing the fault. Geologists’ pre-1965
assumptions concerning heat gen-
erated in the fault were based on
(15) calculations about common varieties of
rocks, such as limestone and granite;
but “weaker” materials, such as clays,
had already been identified in samples
retrieved from the fault zone. Under
(20) normal conditions, rocks composed of
clay produce far less friction than do
other rock types.
In 1992 Byerlee tested whether
these materials would produce friction
(25) 10 to 15 kilometers below the Earth’s
surface. Byerlee found that when clay
samples were subjected to the thou-
sands of atmospheres of pressure
they would encounter deep inside the
(30) Earth, they produced as much friction
as was produced by other rock types.
The harder rocks push against each
other, the hotter they become; in other
words, pressure itself, not only the
(35) rocks’ properties, affects frictional
heating. Geologists therefore won-
dered whether the friction between the
plates was being reduced by pockets
of pressurized water within the fault that
push the plates away from each other.
Q6:
The passage mostly agree that Heney’s findings about temperature in the
answer is D.
我觉得文章最后不是说不光是石头的种类影响摩擦热,压力也是一个很重要的因素。
我觉得的答案应该是A,不是吗。因为文章对于摩擦产生热量没有表示异议,只是对measurements of temperature 不光是石头的种类还应该包括压力这一个因素。
谢谢哪位NN帮我看看吧。实在是想不通。
The passage mostly agree that Heney’s findings about temperature in the
Do pay attention to the the key word--"greatest"
还是不十分的明白呢。因为我找不到任何地方说明giant rock plates that meet at the
又仔细看了一遍文章,是不是因为文章中一直没有合理的解释为什么温度比预计的要低(假设过可能是因为石头的种类不同,后来也给推翻了),所以就说一开始的geologists 估计的摩擦生热是不对的?
A.revealed an error in previous measurements of temperature in the
以上对第一段的分析,我们可以知道,Heney的发现不是解释了一个温度测量上的错误,而是发现了一个与预计温度情况有差距的实际异常,而这一异常推到了地质学家关注岩石的成分,得到更准确的结论,就是由于岩石构成成分种有粘土等物质的存在,所以产生的摩擦并没有理论中那么大。然后第二段进一步分析了除了岩石的构成,压力也是影响摩擦热量的原因。
D.suggested that geologists had inaccurately
assumed that giant rock plates that meet at the
D选项是说地质学家对断层岩石块摩擦生热做了不准确的构想,是对的。注意D选项并没有否定摩擦生热本身,而是强调inaccurately assumed 。
原来是inaccurately这个词有推敲呢,inaccurately 不等于 incorrectly, 谢谢了,明白了。
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