标题: 【求解】向牛牛们求助prep07 CR46 [打印本页] 作者: Addicted潇潇 时间: 2012-6-6 22:14 标题: 【求解】向牛牛们求助prep07 CR46 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?
(A) Due to trade among Native Americans, some European trade goods would have reached the area before the European traders themselves did. (B) At all camps in the region that have been reliably dated to the late 1620's, remains of European trade goods have been found. (C) 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. (D) The first European traders in the area followed soon after the first European explorers. (E) The site is that of a temporary camp that would have been used seasonally for a few years and then abandoned.
----------------------- i can think of at least 2 reasons:
#1:
read the wording carefully: preserved as much as possible from loss or destruction
this statement carries no guarantee that 'as much as possible' will be successful in preserving those trade goods all the way to the present day, some four hundred years later. the trade goods could have been preserved as much as possible - in accord with this statement - and still disappeared before the present.
by contrast, there is no such problem with choice b, because that choice states that the goods 'have been found' at the sites (present perfect = this is a pattern that continues into the present)
#2:
'the first european trade goods to reach the area' may not have reached this particular camp.作者: Addicted潇潇 时间: 2012-6-7 12:28
quite clear and comprehensive~ Thanks a lot~ 作者: Addicted潇潇 时间: 2012-6-7 12:30
谢谢~ 我也发现很多时候不能深想~ 但往往会克制不住自己~ 呵呵~作者: 迷迭青 时间: 2013-6-23 15:18
楼主。。我俩的思维完全一样。。作者: joyce92pipi 时间: 2013-6-23 21:19
我来试一下吧。
因：没有欧洲的goods 被找到；欧洲的traders很active
果：camp所以不会超过1630.
因果加强：
1.加强因果联系
2.特殊因素
a. 欧洲会在trader到之前就到了。 削弱因果联系阿
b.所有1620的camp， 都会发现欧洲的货物。
c.货物有没有价值的问题，跟因果结论没啥关系吧？
