Means、Species、Summons三個英文名詞有一個共同特點:單數與複數形式完全相同,不加 -s 也不變形,必須靠語境或動詞來判斷數量。

1️⃣ Means(方法、手段、財力)
🍁 核心概念: 指達成某目的的「途徑」或「手段」,也可指「財富/收入」。
🧐 單數用法
🌈 Hard work is the only means to success.
(努力是通往成功的唯一手段。)
🌈 The email was the means by which he communicated the plan.
(電子郵件是他傳達計畫的方式。)(此處 means 為單數,搭配 was)
🧐 複數用法
🌈 All available means were exhausted before they gave up.
(在放棄之前,所有可用的手段都已耗盡。)(were 顯示複數)
🌈 She has the means to afford a luxury apartment.
(她有足夠的財力負擔豪華公寓。)(此用法幾乎恆為複數,指財力)
🌳 常見片語
✳️ by means of(藉由):He escaped by means of a rope.
✳️ by all means(當然可以):By all means, help yourself.
✳️ beyond one's means(超出財力範圍):Living beyond your means is dangerous.
2️⃣ Species(物種、種類)
🍁 核心概念: 生物學上的「物種」,或泛指某類事物,是最典型的單複數同型名詞。
🧐 單數用法
🌈 The giant panda is an endangered species.
(大熊貓是一種瀕臨滅絕的物種。)(a species = 一個物種,單數)
🌈 This species of orchid blooms only once a year.
(這種蘭花每年只開花一次。)(blooms 為單數動詞)
🧐 複數用法
🌈 Over a thousand species of birds inhabit the Amazon rainforest.
(亞馬遜雨林棲息著超過一千種的鳥類。)(a thousand species,複數)
🌈 Many species are becoming extinct due to climate change.
(許多物種因氣候變遷而走向滅絕。)(are 為複數動詞)
✳️ 辨別技巧: 看前面的修飾語——a species(單)、many/several/numerous species(複)。
3️⃣ Summons(傳票、傳喚令)
🍁 核心概念: 法律用語,指法院或官方機構發出的「傳喚」或「傳票」。
注意:summons 本身是單數名詞,其複數形式是 summonses(有 -es)。但在口語及非正式書寫中,summons 常被當作單複數同型使用,尤其在美式英語中十分普遍,故常被列入此類討論。
🧐 單數用法(正式)
🌈 He received a summons to appear in court next Monday.
(他收到一張傳票,要求他下週一出庭。)
🌈 The summons was issued by the district court.
(這份傳票由地方法院發出。)(was = 單數)
🧐 複數用法(正式:summonses;口語:summons)
🌈 Three summonses were sent to different defendants on the same day.
(同一天有三份傳票送達不同的被告。)(正式複數)
🌈 Several summons have been ignored by the suspect. (口語/非正式)
(嫌疑人已忽視了好幾張傳票。)

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✳️ 延伸用法:動詞 summon(不加 s)
🌈 The judge summoned the witness to the stand.
(法官傳喚證人上台作證。)
✳️ 延伸補充
↪️ summon(動詞):召喚
↪️ summons(名詞):召喚的文件/傳票
The judge summoned(召喚) the witness.
The witness received a summons(傳票).
✳️ 學習要訣:
判斷Means、Species、Summons這類名詞的數,不看字尾,要看冠詞(a/an = 單數)、數量詞(many/several = 複數)及動詞形式(is/was = 單;are/were = 複)。
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