标题: 一道逻辑题，如何理解原文？ [打印本页] 作者: victorbj262 时间: 2010-6-9 17:32 标题: 一道逻辑题，如何理解原文？ Archaeologists in Michigan have excavated a Native American camp near Dumaw Creek. Radiocarbon dating of animal bones found at the site indicates that the camp dates from some time between 1605 and 1755. However, the camp probably dates to no later than 1630, since no European trade goods were found at the site, and European traders were active in the region from the 1620's onward.
Which of the following, if true, most strengthens the argument?
Due to trade among Native Americans, some European trade goods would have reached the area before the European traders themselves did.
At all camps in the region that have been reliably dated to the late 1620's, remains of European trade goods have been found. （答案）
The first European trade goods to reach the area would have been considered especially valuable and preserved as much as possible from loss or destruction.
The first European traders in the area followed soon after the first European explorers.
The site is that of a temporary camp that would have been used seasonally for a few years and then abandoned.
答案是B。 原文“since no European trade goods were found at the site”似乎与答案不一致呀。作者: keith139 时间: 2010-6-9 20:19
意思是说正因为洞穴里没有这些典型的late 1620‘s的明显特征，所以他只能是早于1630年的，因为在这个分界点和之后的洞穴里都有european trade goods. 架桥模式吧？通过没有这些东西，得出会是1630年前的洞穴，说明1630年之后的洞穴都有一个明显特征——european trade goods
最后注意一下正确选项，还利用了原文中的细节， no European trade goods were found。和原文贴合度很高作者: Jagabee 时间: 2016-11-14 12:29
这道题很不好理解, 写出了自己的分析但总觉得还是不够严密，看到的人欢迎指出任何漏洞或者可以改进的地方.
根据ron提供的框架补充了自己的理解:
• there's a camp. 发现了一个土著camp
• reliable evidence shows that the camp dates from somewhere between 1605 and 1755. ("radiocarbon dating" doesn't really matter; the point is that scientific evidence has given these dates)
土著camp可能存在于1605-1755之间.
• traders were in the area from 1620-1630ish onward.
欧洲商人在1620-1630这个时间段中开始到来
• since those traders' tools were NOT found at the site, the site could NOT date from any time after 1620-1630ish.
因为欧洲商品没有出现在土著camp，所以土著camp最晚不超过1630就应该不存在了.
