Preserve Information Adequately Disappeared Believed Cultures Ethnologists Turn

意群训练： In addition many ethnologists at the turn of the century believed that Native American manners and customs were rapidly disappearing ，and that it was important to preserve for posterity as much information as could be adequately recorded before the culture s disappeared forever .

标志： /In addition/ many ethnologists (at the turn of the century) believed that Native American manners and customs were rapidly disappearing , and believed that it was important to preserve /for posterity/ as much information (as could be adequately recorded) /before the cultures disappeared forever/.

译文： /而且/，（很多本世纪初的）民族人类学家们 相信 印第安人的习惯和风俗正在迅速地消失，而且 认为 重要的是 /在这些文化永远地消失以前/ /为后代/保持 （能够充分记录下来的）尽量多的信息 。

解释： believed后面带着两个由that引导的宾语从句，第二个that从句前省略了believed。这个从句中的主语it是形式主语，其具体内容在后面的不定式中。不定式的结构是一个倒装：to preserve /for posterity/ as much information (as could be adequately recorded) /before the cultures disappeared forever/，其正常语序应该是把for posterity放到后面：to preserve as much information (as could be adequately recorded) /for posterity/ /before the cultures disappeared forever/。其实像本句中的这种倒装并不算什么太难的结构，读者只要读熟了也就掌握了。