[Threatens]threatens to

这是一个包含一个定语从句的主从复合句，主句是 anything deserves our attention，定语从句是 that threatens that 主句很好理解，就是任何事情都值得我们注意，从句中有两个that，其中，第一个that 是关系词引导定语从句。

clearing for agricultural purposes threatens the natural habitat of many unique animal and plant species the Great Barrier Reef off the northeast coast， the largest coral reef in the world， is threatened by inc。

找到了整句Just as bosses and boards have finally sorted outtheir worst accounting and compliance troubles，and improved their feeble corporation governance， a new problem threatens to earn themespecially in America。

forest fires In addition to global warming，melting glaciers，hurricanes，but also exacerbated forest firesOver the past few decades，western states in the United States，more forest fires occurred，affecting a wider ar。

This wail of pain threatening to erupt from her mouth 表示句子，而是名词短语，现在分词短语 threatening to erupt from her mouth 是 wail 的后置定语，相当于 this wail of pain which threatens to erupt from her。

·threaten， intimidate 都指预先告知或给出即将到来的危险灾祸或伤害的迹象 ·Threaten 常指不安或不祥的征兆，有计划地或特意阻碍的外表或行动， 或危险的来源 “a crack that threatened to become a split” Booth。

你要是威胁我或是动武，我就报警过去式threatened 现在分词threatening 过去分词threatened 第三人称单数threatens。