With question such as these clearly before them, the scientists aboard the Glomar Challenger processed to the Mediterranean to search for the answers. On August 23, 1970, they recovered a sample. The sample consisted of pebbles of gypsum and fragments of volcanic rock. Not a single pebble was found that might have indicated that the pebbles came from the nearby continent. In the days following, samples of solid gypsum were repeatedly brought on deck as drilling operations penetrated the seafloor. Furthermore, the gypsum was found to possess peculiarities of composition and structure that suggested it had formed on desert flats. Sediment above and below the gypsum layer contained tiny marine fossils, indicating open-ocean conditions. As they drilled into the central and deepest part of the Mediterranean basin, the scientists took solid, shiny, crystalline salt from the core barrel. Interbedded with the salt were thin layers of what appeared to be windblown silt.
Not a single pebble was found that might have indicated that the pebbles came from the nearby continent.
修饰single pebble的话应该是定语从句， 修饰 not a single pebble was found的话应该是状语从句。
貌似有规定是说状语从句不能用that的，所以这里是修饰single pebble的定语从句（这个人语法不好，请高手拍砖……） 如果按照你的理解那原句应该是 Not a single pebble was found ,which might have indicated that the pebbles came from the nearby continent。
或者你可以把被动弄成主动 People counld not find a single pebble （that might have indicated that the pebbles came from the nearby continent.） People counld not find a single pebble , which might have indicated that the pebbles came from the nearby continent.
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发表于 2011-11-18 18:01:25
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