做阅读题发现,搞清楚文章框架很重要,有助于文章理解,也可以提升效率。
下面我分析了一篇文章框架。希望各位G友可以帮忙提出问题,欢迎指正,互相交流,谢谢~
想请教下各位G友/大神,一般像furthermore 和 in addition 这种副词, 在文章框架中表示前后句式是“并列”关系吗? 一般所在句都是论据吗?
关于第二段结构 论据4、5引出分论点 我这么分析是对的吗? ( 有时候确实搞不清楚论点和论据,希望大家有什么好的方法可以分享一下, 谢谢~)
Scientists long believed that two nerve clusters in the human hypothalamus, called suprachiasmatic nuclei (SCNs), were what controlled our circadian rhythms. (主旨句)Those rhythms are the biological cycles that recur approximately every 24 hours in synchronization with the cycle of sunlight and darkness caused by Earth`s rotation.(论据1 补充说明)Studies have demonstrated that in some animals, the SCNs control daily fluctuations in blood pressure, body temperature, activity level, and alertness, as well as the nighttime release of the sleep-promoting agent melatonin. (论据2,补充说明)Furthermore , cells in the human retina dedicated to transmitting information about light level to the SCNs have recently been discovered.(论据3,补充说明)
Four critical genes governing circadian cycles have been found to be active in every tissue, however, not just the SCNs, of flies, mice, and humans.(论据4))In addition,when laboratory rats that usually ate at will were fed only once a day, peak activity of a clock gene in their livers shifted by 12 hours, whereas the same clock gene in the SCNs remained synchronized with light cycles. (论据5)While scientists do not disputethe role of the SCNs in controlling core functions such as the regulation of body temperature and blood pressure, scientists now believethat circadian clocks in other organs and tissues may respond to external cues other than light – including temperature changes – that recur regularly every 24 hours.(论据4、5引出分论点)
*划线部分是做题时应该仔细阅读的部分 框架: 第一段: 主旨句: SCNs control circulation rhythms + 论据1补充说明如何control + 论据2 举例子补充说明+ furthermore 论据3 补充说明 第二段: 论据4+ in addition 论据5 + 引出分论点:do not dispute the role of SNCs , other organs and tissues may respond to external cues other than light 简易框架: 第一段:主旨句+ 论据1 、2、3补充说明 第二段:论据4、5 引出分论点
以下是题目分析:
(主旨题)The primary purpose of the passage is to A challenges recent findings that appear to contradict earlier findings (没有反驳findings) B present two sides of an ongoing scientific debate (不是争论) C reportanswers to several questionsthat have long puzzled researchers (不是回答问题,原文也没提及long puzzled) D discuss evidence that has caused a longstanding belief to be revised (对应结论..do not dispute…now believe…) E attempt toexplaina commonly misunderstood biological phenomenon( 不是解释) (细节题)The passage mentions each of the following as afunctionregulated bySCNsin some animals EXCEPT ( 根据关键词”function和选项“定位原文到SCNs control) A activity level B blood pressure C alertness D vision (定位处未提及) E temperature (细节题)The author of the passage would probably agree with which of the following statement about the SCNs ? A The SCNs are found in other organs and tissues of the bodybesides the hypothalamus. (原文没有提及besides…其他位置) BThe SCNs playa critical but not exclusive role in regulating circadian rhythms. (定位到第二段主旨句 governing circadian cycles…, not just SCNs…) C The SCNs control clock genes in a number of tissues and organs throughout the body. (原文没有提及) D The SCNs are a less significant factorin regulating blood pressurethan scientists once believed. ( 根据”blood pressure”定位到第二段结论the SCNs in controlling core functions such as the regulation of body temperature and blood pressure; core 表明SCN 是主要的factor ,不是less significant ) E The SCNs are less strongly affectedby changes in light levels than they are by other external cues. (根据“other external cues”定位到第二段结论circadian clocks in other organs and tissues may respond to external cues other than light 表明其他器官和组织中的circadian clocks 是受external cues 影响,但不是SCNs 会受external cues 影响,定位处不存在这个比较关系)
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