语法分析

This is where one of the best potential zero-carbon options , hydrogen , was produced by hydroelectricity as far back as 1928.

(译：早在1928年，尤坎就已经利用水力发电生产氢气------它是迄今为止最好的潜在零碳选择之一)

问：原句改为This is where one of the best potential zero-carbon options because hydrogen was produced by hydroelectricity as far back as 1928. 也行吧，因为我认为because之前句为结果，后句为原因；可此句用两逗号隔开was的主语hydrogen，是为什么？这是什么表示法？

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分类：标点符号

最佳答案 2020-06-16 16:47

This is where one of the best potential zero-carbon options, hydrogen, was produced by hydroelectricity as far back as 1928.

划线部分是一个很简单的句子，网友考虑的太复杂了！

one of the best potential zero-carbon options, hydrogen, was produced by hydroelectricity as far back as 1928.

划线部分是句子的主语。one of the best potential zero-carbon options 和 hydrogen，是“同位成分”（氢气------迄今为止最好的潜在零碳选择之一：它们是同位关系）。当其中一个同位语太长，另一个同位语前后需要加逗号表示停顿，因此就有了这个情况。

你加上 because 后，那么，one of the best potential zero-carbon options 是一个名词短语，能是 because 的主句吗？

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mikee 1秒前

This is where one of the best potential zero-carbon options because hydrogen was produced by hydroelectricity as far back as 1928.

改得面目全非。

划线处where引导了一个名词结构？比如 I know where the trees.这句话对不对？

语法分析

最佳答案 2020-06-16 16:47

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