Dr La Farge took samples of the moss and，using carbon­dating techniques，discovered that the plants date back to the Little Ice Age.Dr La Farge’s team took the samples，planted them in dishes full of nutrient­rich potting soil and fed them with water.

　　The samples were from four separate species including Aulacomnium turgidum，Distichium capillaceum，Encalypta procera and Syntrichia ruralis.The moss plants found by Dr La Farge are types of bryophytes.Bryophytes can survive long winters and regrow when the weather gets warmer.

　　However，Dr La Farge was surprised that the plants buried under ice have survived into the twenty­first century.Her findings appear in proceedings(论文集) of the National Academy of Sciences.

　　36.Dr La Farge’s research is of great importance to

　　A.knowing what the plants during the Little Ice Age were like

　　B.understanding how ecosystems recover from glaciers

　　C.regrowing many species that have been destroyed before

　　D.figuring out the effects of melting ice caps on moss

　　答案　B

　　解析　推理判断题。根据第二段中的“Findings suggest that these plants could help repopulate regions exposed by melting ice caps.”可知，La Farge博士的研究对理解生态系统如何从冰川中恢复过来很重要。故选B。

　　37.The underlined part “blew my mind” in Paragraph 6 can best be replaced by “

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