旧prep21，看了讨论帖觉得还是不懂

ran2010zx

21.

Traces of cultivated emmer wheathave been found among the earliest agricultural remains of many archaeologicalsites in Europe and Asia.  The only placewhere the wild form of emmer wheat has been found growing is a relativelynarrow strip of southwest Asia.  Sincethe oldest remains of cultivated emmer wheat yet found are from village sitesin the same narrow strip, it is clear that emmer wheat was first domesticatedsomewhere in that strip.

Which of the following, if true,most strengthens the argument?

(A) The present-day distribution ofanother wild wheat, einkorn, which was also domesticated early in thedevelopment of agriculture, covers a much larger area of southwest Asia.

(B) Modern experiments show thatwild emmer wheat can easily be domesticated so as to yield nearly as well astraditionally domestic strains.

(C) At the time when emmer wheatwas first cultivated, it was the most nutritious of all the varieties of grainthat were then cultivated.

(D) In the region containing thestrip where wild emmer wheat has been found, climatic conditions have changedvery little since before the development of agriculture.

(E) It is very difficult, withoutgenetic testing, to differentiate the wild form of emmer wheat from a closelyrelated wild wheat that also grows in southwest Asia.

这题我觉得B加强的最直接啊

原文说在同一个strip发现了最早wild 的emmer，然后最早发现的人工培育的也在那，那么中间的gap就是野的转成人工的么

关于D，天气在农工业开始之前几乎没变过只能说明wild一直比较好的生存直到农业开始发展

并不能说明domestic最早在那个strip啊。。。

个人意见，求砖拍

cycyang

(D) In the region containing thestrip where wild emmer wheat has been found, climatic conditions have changedvery little since before the development of agriculture.

As there is no big difference of climate conditions before and after the development of agriculture, it means that the domestication process of turning wild emmer wheat into cultivated wheat will not be influenced by the climate. In other word, it is reasonable to deduce that "after the wild emmer wheat was found in that erea, people in the same area managed to turn it into domestic wheat."

cord2012

我分明觉得这道题是先经过人们agriculture cultivate 了这种麦子，然后这种麦子一直在这里生长，到最后有了现在还在生长的野生的。对d的解释：既然自打cultivate后气候就没变，所以有很少的可能性麦子在这里被培育了友由于环境不适去别处生长了，继而也就有很大的可能行麦子是在它现在还生长的地方第一次培育的！！！

leeng

B只是说野生emmer wheat容易domesticate,没法加强“emmer wheat首先在strip被domesticate(而非在别处）”的argument.只有D说这些年气候条件没怎么变——既然今天能发现野生emmer wheat（题目提供事实），气候也没变，说明当年很可能也有野生emmer wheat。关键要知道当年有没有野生emmer wheat，我们才能判断当年种植的小麦是不是通过domesticate得到的，还是说通过别的途径如直接引种别人domesticate的。个人意见~