您好,请问这句话中间部分是什么句型,谢谢

您好,请问这句话中间部分是什么句型,谢谢
European countries are becoming increasingly concerned by major threats to European forests,threats which know no frontiers other than those of geography or climate:air pollution, soil deterioration, the increasing number of forest fires and sometimes even the mismanagement of our woodland and forest heritage.
这句话第一个逗号之后到冒号之间的这部分,完全没明白是什么句型,他为什么能和前半句用逗号隔开,which是定语从句吗,那为什么know没用被动,威胁不应该用 “被认为是” 吗?
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定语从句有没有主语省略的情况,这句就是 which (we) know ...
流星8204 1年前 已收到2个回答 举报

随便_伊 幼苗

共回答了13个问题采纳率:84.6% 举报

主体部分:European countries are becoming increasingly concerned by majorthreats to European forests,欧洲国家日益受到对欧洲森林的主要威胁

同位语部分:threats which know no frontiers other than those of geography or climate:air pollution, soil deterioration, the increasing number of forestfires and sometimes even the mismanagement of our woodland and forest heritage.

  【同位语核心名词】threats 也就是一些…的威胁

  【定语从句】which know no frontiers other than those of geography or climate:air pollution, soil deterioration, the increasing number of forestfires and sometimes even the mismanagement of our woodland and forest heritage.

关系代词兼主语:which (指代threats)

谓语动词:know 经历了【此处等于have experience of(有过…的经历),而不是通常的“知道”或“认识到”】

宾语:no frontiers other than those ofgeography or climate 除了地理疆域或气象带分界外的无边境

同位语:air pollution, soildeterioration, the increasing number of forest fires and sometimes even themismanagement of our woodland and forest heritage. 空气污染、土壤退化、日益增加的森林火灾以及有时候我们的林地与森林产权的疏于管理

参考译文:欧洲国家日益受到对欧洲森林管理的主要威胁,也就是说,一些经历过除了存在地理上的边境或风土的划分以外而没有管理疆域的威胁,这些是威胁就是空气污染、土壤退化、日益增加的森林火灾以及有时候我们的林地与森林产权的疏于管理。

1年前

2

金猪猪娃娃 幼苗

共回答了18个问题采纳率:88.9% 举报

threats which know no frontiers other than those of geography or climate:air pollution, soil deterioration, the increasing number of forest fires and sometimes even the mismanagement of our woodland a...

1年前

0
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