3 as 从句理解
请教曹老师：
It is almost always due to some very special circumstances that traces of land animals survive, as by falling into inaccessible caves, or into an ice crevasse, like the Siberian mammoths, when the whole animal is sometimes preserved, as in a refrigerator. This is what happened to the famous Beresovka mammoth which was found preserved and in good condition. In his mouth were the remains of fir trees - the last meal that he had before he fell into the crevasse and broke his back.
1）这个 as by falling into inaccessible caves 怎么分析理解？这是比较句吗？
2）这个when the whole animal is sometimes preserved - 其中when是什么含义和用法？
3）这个This is what happened to the famous Beresovka -This指代前句内容，what是缩合关系代词=the thing that吗？（不是疑问代词=什么？）
最佳答案 2023-02-17 17:43
1 这原本是as引导比较分句，分句省略了主语和谓语，只保留了作状语的介词短语。长期如此使用，则as by可以被重新分析为复合介词，意为就像通过...的方式。
2 when在此=upon or after which；and then。
3 是的。
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