City University of Hong Kong CLASS CLASS
Making Sense of Grammar
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為何情態助動詞可以用來表達「非真實」事件?

asked Feb 1, 2018 in Questions about English Grammar by admin (25,240 points)
edited Mar 1, 2018 by admin | 368 views

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在使用 can, may, must, will, shall, could, might, should, would 等情態助動詞時,說話者只是表達個人主觀的期望、對可能性或責任義務的判斷,這些判斷其實都未確實發生。

這些助動詞之所以稱為「情態」助動詞,就是幫助說話者表達其所認定的最佳「環境」或「態度」,意即對某事的可行性、可能性、確定性的「推理判斷」,或是對某人能力、意願、責任做出「期待表述」,這兩類都屬於「非事實」:

對真實與否的推理判斷:It should be him. 應該是他沒錯!

對好壞與否的期待表述:He should do it. 他應該去做這件事!

Related question: 哪些句式可以用來表達「非事實」?

https://goo.gl/JsyCd7

answered Feb 1, 2018 by admin (25,240 points)
edited Mar 26, 2018 by admin

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