这句话里as引导的是原因还是时间状语从句?We obliged to them because some of these languages have since vanished,as the peoples who spoken them died out or became assimilated and lost their native languages.可以详细帮我分析下

关于状语从句中as的用法~请高手帮忙解释下~怎么区分由as引导的从句是时间状语从句~原因状语从句还是比较或方式状语从句?不同点在哪? 关于从句的引导词帮个忙把能引导不同从句的引导词列一下.顺便说一下是引导什么从句例：as可引导时间状语从句,原因状语从句,比较状语从句.非限定性定语从句, 这句话里as引导的是原因还是时间状语从句?We obliged to them because some of these languages have since vanished,as the peoples who spoken them died out or became assimilated and lost their native languages.可以详细帮我分析下 as引导时间状语从句与when 引导的时间状语从句有什么不同? 英语翻译after 引导的从句是时间状语从句还是定语从句 这句话是as.as 引导的什么从句each country is as keen as the other to be represented是比较状语从句吗?还是说是介词,那这个介词短语在句中做什么成分呢? as引导的原因状语从句,请举例 when与as引导的时间状语从句的区别 as引导的时间状语从句用什么时态? when和as引导时间状语从句时的区别 请问when在这句话中引导的是什么从句?I haven't seen her since the time when she had the accident.when在这里是引导的定语从句还是时间状语从句呢? 怎样判断when引导的是时间状语从句还是宾语从句以及定语从句经常在阅读里遇见when引导从句,句子意思都懂,就是不知道怎么区分它到底引导的是什么从句 引导原因状语从句是since和as的区别rt while 引导的时间状语从句 和让步状语从句 有什么区别啊?While living standards have improved,environmental problems have become increasingly severe.这是时间状语从句 还是让步状语从句啊? Before after when whill as引导时间状语从句的区别及用法重点是区别 请英语高手帮忙分析下这句话It is as if single unimportant event set up a chain of reactions,在这句话中as if引导是方式状语从句,请问前面It is干什么用?请问这里的as if引导的是方式状语从句吧？还是表语 once引导条件状语从句,还是时间状语从句 请问这句话,I still remember the first time when I met her.when 引导的是宾语从句还是状语从句?when状语从句，怎么会引导定语从句？