考研英语长难句每日一练119

1.句子属于哪种结构类型？（简单句/并列复合句/主从复合句）

2.句子由哪些子句构成，连接这些子句的连接词是什么？

3.每个子句中各个语法成分分别是哪些？

4.句子的中文意思是什么？

    ENGLISH   

Aluminum remained unknown until the nineteenth century, because nowhere in nature is it found free, owing to its always being combined with other elements, most commonly with oxygen, for which it has a strong affinity.

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词汇突破

aluminum 铝

free 元素的游离状态

affinity 归属感；亲和性

affinity for一种元素对于另一种元素的亲和力

主干识别

Aluminum remained unknown until the nineteenth century.

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其他成分

because nowhere in nature is it found free, owing to its always being combined with other elements, most commonly with oxygen, for which it has a strong affinity.为原因状语从句。

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译文赏析

铝总是跟其它元素结合在一起，最普遍的是跟氧的结合。因为铝跟氧有很强的亲和性，在自然界中根本找不到游离状态的铝，所以铝直到19世纪才被人发现。

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