终于做完了TPO19的阅读解析,但问题多多。
挑几个问题在这里问问,希望大神能回答一下,下列句子我都翻译不出来。都是些选项的答案
1.Whether a given species will be found in a given ecosystem strongly depends on what other species it would interact with in that ecosystem.
2.Nineteenth-century geologists studying the layers of drift concluded that during the Pleistocene epoch, several glaciations had occurred with warm periods between them
It soon became clear that there were multiple glacial ages during the Pleistocene, with warmer interglacial intervals between them. As geologists mapped glacial deposits in the late nineteenth century, they became aware that there were several layers of drift, the lower ones corresponding to earlier ice ages. Between the older layers of glacial material were well- developed soils containing fossils of warm-climate plants. These soils were evidence that the glaciers retreated as the climate warmed. By the early part of the twentieth century, scientists believed that four distinct glaciations had affected North America and Europe during the Pleistocene epoch
20. According to paragraph 3, what did geologists conclude as a result of finding well-developed soils containing warm- climate plant fossils between layers of glacial drift?
There had been only one warm period before the Pleistocene epoch
There had been multiple periods of mild weather between ice ages
Several glacial periods occurred after the Pleistocene epoch
Some earlier epochs were warmer than the Pleistocene