分析as expected的用法（它用作什么成分，是什么的省略）

As expected, the three men were sentenced to life imprisonment.

请问这里的 as expected 是什么成分？它是什么东西的省略？谢谢！

As expected, the three men were sentenced to life imprisonment.

As expected=As had been expected.

传统语法认为这是一个非限制性定语从句，as是关系代词，指代主句内容，并在从句中作主语。这种定语从句可位于主句之前、之后，也可以插入主语和谓语之间。

The three men, as expected, were sentenced to life imprisonment.

The three men were sentenced to life imprisonment, as expected.

正如所料，这三个男子被判终生监禁。

现代语法认为这个as从句是比较状语从句，将人们预料中的情景和实际发生的情景作比较，比较的结果是二者一致。

曹荣禄 -

擅长：动词用法,句法问题 | 采纳率 82% | 回答于 1秒前

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刘永科 - 教育出版集团英语总顾问 & 英语系列图书主编 1秒前

擅长：语法理论,语言学,文化背景

曹老师对此问题已做了很好的解答。这是以前我给网友的一个解答，很相似，供参考。

【问】As already mentioned, the legislation does not consider low pay as an acceptable reason for turning down a job. 这句话中mentioned的逻辑主语是什么？

【答】网友问mentioned 的逻辑主语，这是一个很有意思的问题。

英语在朝着表达简洁的方向发展，as 的这种用法其实是一种省略现象。我认为，以下两种解释都可以接受：

第一、把as 看作关系代词，指代后面整个主句的内容，as后省略了is。因此，As already mentioned等于As is already mentioned。

第二、把as 看作从属连词，意为“像......那样”，看作方式状语从句或比较状语从句均可。因此，从理解角度考虑，As already mentioned意思上等于As it is already mentioned。

能用于此句式的动词，一般都是“陈述，叙述，描述，提及，说及，显示，指出，认为”之类的词，多用于议论文体，是带有总结性的提示语，这个already 还可以省去。除了As already mentioned以外，常见的有：

as already said 正如已经说过的（那样）

as already mentioned 正如已经提到的（那样）

as already described 正如已经描述的（那样）

as already discussed 正如已经讨论过的（那样）

as already noted 正如已经叙述到的（那样）

as already stated 正如已经说指出的（那样）

as already announced 正如已经宣布的（那样）

as already pointed out 正如已经指出的（那样）

as already indicated 如前所示（那样）

as already hinted 正如已经暗示的（那样）

as already told 正如已经告知的（那样）

as already shown 如已显示（那样）

as already emphasized 正如已经强调的（那样）

as already observed 正如已观察到的（那样）

as already explained 正如已经解释过的（那样）

as already suggested 正如已经提出的（那样）