39. GWD-23-Q2

Known today by a name they would not have recognized—Anasazi, Navajo for “ancient enemies”—the ancestors of the modern Zuni and Hopi built and then, for reasons still mysterious, abandoned the complex roads and structures of the domain they ruled a millennium ago in the American southwest.

1. ancestors of the modern Zuni and Hopi built and then, for reasons still mysterious, abandoned the complex roads and structures of the domain they ruled a millennium ago in the American southwest

2. reasons are still mysterious why the ancestors of the modern Zuni and Hopi built and then abandoned the complex roads and structures of the domain they ruled in the American southwest a millennium ago

3. modern Zuni and Hopi had ancestors who, a millennium ago, ruled a domain in the American southwest where they built and then abandoned complex roads and structures for still mysterious reasons

4. domain of the American southwest was ruled a millennium ago by the ancestors of the modern Zuni and Hopi, who built and then, for reasons still mysterious, abandoned complex roads and structures

5. complex roads and structures of the domain that the ancestors of the modern Zuni and Hopi ruled a millennium ago in the American southwest were built and then, for reasons still mysterious, abandoned

顺便问问破折号的用法？？是不是破折号中间的东西要和后面的东西表达的东西一致，就象同位语一样？

很容易确定答案A，

因为只有A，Kwown才可以和主句主语the ancestors搭配，是对主语的解释。

...—Anasazi, Navajo for “ancient enemies”—...  怎么解释?
其中的for又是什么用法?

Navajo for “ancient enemies 是对 Anasazi的解释。

Navajo指某种民族或语言的意思。

Anasazi：用Navajo语来说就是古代敌人的意思

ah,原来如此,这下通了:

...Anasazi,纳瓦霍人(美国最大的印第安部落)语中的"古敌人"...

谢谢楼上指点.

麻烦楼上高人再看一下TTGWD23-13,http://forum.chasedream.com/dispbbs.asp?boardID=23&ID=202765&page=1,我的贴在13楼.