gre阅读之长江水稻

dsnadja

这篇文章三道题感觉每一道题是清楚的。好受伤啊，本来阅读就差，打算看看机经也没看懂。。求高手指教！  第一题：看了答案之后才觉得C可能是对的，但是自己想就根本确定不了啊。谁能跟我说说这个思路是什么吗？多谢！
第二题：我选的是A，我觉得没有时间上的证据证明那个更早，这应该挺合理的吧。然后看了正确答案是B，也觉得B也有道理
第三题：选D，这个我是看了答案也不知道为什么。
求讲解！任何一个都可以，多谢多谢！
贴文章题目如下：




Since the 1970s, archaeological sites in China's Yangtze River region have yielded
evidence of sophisticated rice-farming societies that predate signs of rice cultivation elsewhere
in East Asia by a thousand years. Before this evidence was discovered, it had generally been
assumed that rice farming began farther to the south. This scenario was based both on the
geographic range of wild or free-living rice, which was not thought to extend as far north as the
Yangtze, and on archaeological records of very early domestic rice from Southeast Asia and
India (now known to be not so old as first reported). Proponents of the southern-origin theory
point out that early rice-farming societies along the Yangtze were already highly developed and
that evidence for the first stage of rice cultivation is missing. They argue that the first
hunter-gatherers to develop rice agriculture must have done so in this southern zone, within
the apparent present-day geographic range of wild rice.

Yet while most stands of wild rice reported in a 1984 survey were concentrated to the
south of the Yangtze drainage, two northern outlier populations were also discovered in
provinces along the middle and lower Yangtze, evidence that the Yangtze wetlands may fall
within both the present-day and the historical geographic ranges of rice's wild ancestor.



2.1. Which of the following, if true, would most clearly undermine the conclusion that the
author makes based on the 1984 survey?

A. Areas south of the Yangtze basin currently have less wild-rice habitat than they once did.

B. Surveys since 1984 have shown wild rice populations along the upper Yangtze as well as
along the middle and lower Yangtze.
C. The populations of wild rice along the Yangtze represent strains of wild rice that migrated to
the north relatively recently.
D. Early rice-farming societies along the Yangtze were not as highly developed as
archaeologists once thought.
E. In East Asia, the historical geographic range of wild rice was more extensive than the
present-day geographic range is.





2.2. Based on the passage, skeptics of the idea that rice cultivation began in the Yangtze River
region can point to which of the following for support?
A. Lack of evidence supporting the existence of rice-farming societies along the Yangtze at an
early date
B. Lack of evidence regarding the initial stages of rice cultivation in the Yangtze region
C. Recent discoveries pertaining to the historical geographic range of rice's wild ancestor
D. New information regarding the dates of very early domestic rice from Southeast Asia
E. New theories pertaining to how hunter-gatherers first developed rice agriculture in East Asia




 
2. 3. Which of the following can be inferred from the passage about the “southern-origin
theory”?
A. The theory is based on an unconventional understanding of how hunter-gatherers first
developed rice agriculture.
B. The theory fails to take into account the apparent fact that evidence for the first stage of rice
cultivation in the north is missing.
C. The theory was developed primarily in response to a 1984 survey of wild rice's geographic
range.
D. Reassessment of the dates of some archaeological evidence has undermined support for the
theory.
E. Evidence of sophisticated rice-farming societies in the Yangtze region provides support for
the theory.
 
答案：CBD

shushibi

3不知道你觉得哪个对=3=

2的话，觉得lz的问题是稍稍有些大。因为A选项是完全不正确的答案，应该排除的。答案b并不是因为b更好才选的b

原文中有“...early rice-farming societies along the Yangtze were already highly developed and
that evidence for the first stage of rice cultivation is missing.”
首先要知道这句话是先前的理论（也就是反对文中所说最近提出的水稻耕种起源于yz的这个理论），从这句话可以知道其实是有早期的一个rice-farming society的。但是，正因为这样的一个society过于成熟了，且缺少一开始的（不成熟的）一个状态，所以觉得rice-farming并不是从这边起源的。

所以整理一下，这一段里的前提和结论是：
premise1：有一个发达的水稻耕种社会
Premise2：缺少前期（不发达的）水稻耕种时期的证据
con:水稻耕种起源不在YZ
assumption：水稻耕种的起源会有前期（不发达）时期的证据

那2题原题问的是关于支持rice-farming begin in YZ的怀疑，
其实最简单，只要把之前这个不支持水稻耕种起源于YZ的说法的前提/结论或者假设再次强调（找他们的同义句），就可以支持这种怀疑。

lz选的A其实是不对的答案，如果这道题是多选，也不能选A。
因为这个答案前提1其实是正好相反，说是缺少一个rf society，原文中是已经出现了一个developed rf society

lz如果选A的话，，可见还没有看懂这篇小文章= 3=

dsnadja

是没怎么看懂呢，请问有没有什么做阅读的好方法啊，总是做不对。呜呜

3不知道你觉得哪个对=3=

2的话，觉得lz的问题是稍稍有些大。因为A选项是完全不正确的答案，应该排除的。答案b并不是因为b更好才选的b

原文中有“...early rice-farming societies along the Yangtze were already highly developed and
that evidence for the first stage of rice cultivation is missing.”
首先要知道这句话是先前的理论（也就是反对文中所说最近提出的水稻耕种起源于yz的这个理论），从这句话可以知道其实是有早期的一个rice-farming society的。但是，正因为这样的一个society过于成熟了，且缺少一开始的（不成熟的）一个状态，所以觉得rice-farming并不是从这边起源的。

所以整理一下，这一段里的前提和结论是：
premise1：有一个发达的水稻耕种社会
Premise2：缺少前期（不发达的）水稻耕种时期的证据
con:水稻耕种起源不在YZ
assumption：水稻耕种的起源会有前期（不发达）时期的证据

那2题原题问的是关于支持rice-farming begin in YZ的怀疑，
其实最简单，只要把之前这个不支持水稻耕种起源于YZ的说法的前提/结论或者假设再次强调（找他们的同义句），就可以支持这种怀疑。

lz选的A其实是不对的答案，如果这道题是多选，也不能选A。
因为这个答案前提1其实是正好相反，说是缺少一个rf society，原文中是已经出现了一个developed rf society

lz如果选A的话，，可见还没有看懂这篇小文章= 3=

-- by 会员 shushibi (2012/10/9 12:01:46)

rukawa

dear，你“jituo”和“CD”一起发呀！！哈哈～

dsnadja

哈哈，看出来啦。不好意思啦。。

dear，你“jituo”和“CD”一起发呀！！哈哈～

-- by 会员 rukawa (2012/10/9 14:51:33)