美國期中選舉:選什麼、為何重要 The U.S. Midterm Elections: What Is on the Ballot and Why It Matters

美國期中選舉:選什麼、為何重要 The U.S. Midterm Elections: What Is on the Ballot and Why It Matters

2026 年 11 月 07 日

● 字源與歷史概念

**midterm(期中)**由 mid(中間)加 term(任期)構成,term 源自拉丁文 terminus(界線、終點)。**election(選舉)**源自拉丁文 electio,來自 eligere(挑出),由 e-(出)加 legere(選取)構成。**Congress(國會)**源自拉丁文 congressus(會合),由 con-(一起)加 gradi(走)構成。**senate(參議院)**源自拉丁文 senatus,來自 senex(老人),古羅馬元老院原由年長者組成。**stagger(交錯排列)**源自古北歐文 stakra(搖晃、蹣跚),在制度用語中指「錯開時間安排」。**contest(競逐、爭奪)**源自拉丁文 contestari(共同作證、對質),由 con-(共同)加 testis(證人)構成。**verdict(裁決)**源自中古拉丁文 veredictum,由 vere(真實地)加 dictum(說出)構成。**governor(州長)**源自拉丁文 gubernare(掌舵)。

背景:美國總統任期四年,期中選舉在任期過半時舉行,決定未來兩年的國會組成。美國聯邦眾議院共 435 席,議員任期兩年,所以全部席位每兩年重選一次。聯邦參議院共 100 席(每州 2 席),參議員任期六年,席位分成三批輪流交錯,因此每兩年改選約三分之一。2026 年這次,資料指出有 35 席改選。另外,36 個州選州長,46 個州共選出逾 6,100 名州議員,各地選票還可能包含地方職位與公投案。

核心概念:

**Staggered terms(交錯任期):**參議院每兩年只改選約三分之一,使這個院的組成變化較為緩慢。

**Referendum on the party in power(對執政黨的檢驗):**期中選舉常被視為選民對總統與其政黨表現的評價。

**Divided government(分立政府):**若國會多數黨與總統不同黨,總統推動政策會更困難。

同源與核心詞彙:midterm(期中)、election(選舉)、Congress(國會)、senate(參議院)、stagger(交錯排列)、contest(競逐)、verdict(裁決)

● 全新例句(86 字長句)

Held halfway through a president's four-year term, midterm elections fill all 435 House seats, which are contested every two years, and thirty-five of the 100 Senate seats, whose six-year terms are staggered so that about a third come up every two years, and although the president is never on the ballot, they serve as a verdict on the party in power, which has lost House seats in eighteen of twenty midterms since 1946, deciding whether the president's agenda meets a friendly Congress or an opposed one.

● 排列為比較容易閱讀的方式

Held halfway through a president's four-year term,

midterm elections fill

　all 435 House seats,

　　which are contested every two years,

　and thirty-five of the 100 Senate seats,

　　whose six-year terms are staggered

　　so that about a third come up every two years,

and although the president is never on the ballot,

they serve as a verdict on the party in power,

　which has lost House seats

　　in eighteen of twenty midterms since 1946,

deciding whether the president's agenda meets

　a friendly Congress or an opposed one.

● 分解為原初的短小句

Midterm elections are held halfway through a president's four-year term.

(過去分詞 Held 的還原。)

Midterm elections fill all 435 House seats.

(主句主幹的第一個受詞。)

Voters contest the House seats every two years.

(which 關係子句的還原,被動語態 are contested。)

Midterm elections also fill thirty-five of the 100 Senate seats.

(並列的第二個受詞。)

The Senate seats have six-year terms.

(whose 關係子句的前半。)

The terms are staggered.

(被動語態 are staggered 的還原;stagger 表「錯開」。)

About a third of the seats come up every two years.

(so that 結果子句的還原;come up 表「輪到改選」。)

The president is never on the ballot.

(although 子句的還原。)

Midterm elections serve as a verdict on the party in power.

(並列主句的主幹。)

The party in power has lost House seats in eighteen of twenty midterms since 1946.

(which 非限定子句的還原。)

Midterm elections decide something.

(現在分詞 deciding 的還原。)

The president's agenda meets either a friendly Congress or an opposed one.

(whether 名詞子句的還原;one 代替 Congress。)

● 全新文法解析

1. 過去分詞句首 Held halfway through...

句型:過去分詞 + 副詞 + through + 名詞, + 主詞 + 動詞

作用:Held 是被動分詞構句,省略了 which are,表示「在……時舉行的」,把期中選舉的時間位置放在句首,再以主句說明選什麼。這是學術文體交代背景最常見的壓縮方式。

關鍵詞彙:halfway through(任期中段)、four-year term(四年任期)、midterm(期中)

2. fill 的兩個並列受詞 + which 被動子句

句型:fill + all + 數字 + 名詞, + which + are + 過去分詞 + 時間, + and + 數字 + of + the + 數字 + 名詞

作用:fill 後面接兩個並列受詞:一個是全部眾議院席位,一個是參議院 100 席中的 35 席。which are contested every two years 以被動語態說明眾議院每兩年全部重選,而第二個受詞 thirty-five of the 100 Senate seats 以「部分比全體」的寫法,表示只改選一部分。

關鍵詞彙:fill(選出人員填補)、contest(競逐)、thirty-five of the 100(100 席中的 35 席)

3. whose 子句 + 被動語態 + so that 結果子句

句型:, whose + 名詞 + are + 過去分詞 + so that + 主詞 + come up + 時間

作用:whose six-year terms 作為關係子句的主詞,are staggered 以被動語態說明「任期是被錯開的」,so that 引出這樣安排的結果:每兩年約有三分之一的席位改選。這一個子句,把參議院的制度,濃縮在不到二十個字之內。

關鍵詞彙:whose(其……的)、six-year term(六年任期)、stagger(錯開)、so that(使得)

4. come up(片語動詞)

句型:about a third come up every two years

作用:come up 在選舉語境中表「(席位)輪到改選」,不需要受詞。about a third 是主詞,動詞 come 用複數,因為 a third 指的是「三分之一的席位」,意義上是複數。every two years 說明週期,與前面眾議院的 every two years 相呼應。

關鍵詞彙:come up(輪到改選)、about a third(約三分之一)、every two years(每兩年)

5. and although 讓步子句 + serve as a verdict

句型:and + although + 主詞 + is never + 介系詞片語, + 主詞 + serve as + 名詞 + on + 名詞

作用:and 連接第二個並列主句,although 子句先承認「總統不在選票上」,再說明期中選舉仍有對總統評價的作用。serve as 表「作為」,verdict on 表「對……的裁決」,the party in power 是「執政黨」的固定說法。

關鍵詞彙:although(雖然)、on the ballot(在選票上)、serve as(作為)、verdict(裁決)

6. which 非限定子句 + 比例表達

句型:, which + has + 過去分詞 + 受詞 + in + 數字 + of + 數字 + 名詞 + since + 年份

作用:which 的先行詞是 the party in power,補充歷史規律,不改變主句。in eighteen of twenty midterms 是「二十次中的十八次」,比 often 具體;since 1946 限定範圍。完成式 has lost 表示從 1946 年延續到現在的紀錄。

關鍵詞彙:lose seats(失去席位)、eighteen of twenty(二十次中的十八次)、since(自從)

7. deciding whether 名詞子句 + 代名詞 one

句型:, deciding + whether + 主詞 + 動詞 + a + 形容詞 + 名詞 + or + an + 形容詞 + one

作用:deciding 是省略主詞的現在分詞,補充選舉的另一個功能。whether 引導名詞子句,作 deciding 的受詞;an opposed one 的 one 代替前面的 Congress,避免重複。friendly 與 opposed 以最簡單的語言描述國會與總統的關係。

關鍵詞彙:agenda(議程、施政目標)、friendly(友善的)、opposed(對立的)、decide whether(決定是否)

● 參考翻譯

期中選舉在總統四年任期的中段舉行,選出全部 435 個眾議院席位(每兩年全部改選一次),以及 100 個參議院席位中的 35 席(參議員任期六年、輪流交錯,使每兩年約有三分之一席位改選);雖然總統本人不在選票上,它們卻是對執政黨的一次裁決,自 1946 年以來,執政黨在二十次期中選舉中有十八次失去眾議院席位,同時也決定總統的施政議程,將面對友好的國會或對立的國會。

● 逆向工程(請嘗試不看原文,還原長句)

Midterm elections are held halfway through a president's four-year term.

Midterm elections fill all 435 House seats.

Voters contest the House seats every two years.

Midterm elections also fill thirty-five of the 100 Senate seats.

The Senate seats have six-year terms.

The terms are staggered.

About a third of the seats come up every two years.

The president is never on the ballot.

Midterm elections serve as a verdict on the party in power.

The party in power has lost House seats in eighteen of twenty midterms since 1946.

Midterm elections decide something.

The president's agenda meets either a friendly Congress or an opposed one.

對照完整句子:

Held halfway through a president's four-year term, midterm elections fill all 435 House seats, which are contested every two years, and thirty-five of the 100 Senate seats, whose six-year terms are staggered so that about a third come up every two years, and although the president is never on the ballot, they serve as a verdict on the party in power, which has lost House seats in eighteen of twenty midterms since 1946, deciding whether the president's agenda meets a friendly Congress or an opposed one.

**補充說明:**全句逐字核算為 86 字(數字算一字,連字號詞算一字)。字數控制在 70 至 95 字,文法解析依句子結構列出 7 點。句型為「過去分詞句首、fill 並列受詞加 which 被動子句、whose 加被動加 so that、come up 片語動詞、and although 讓步加 serve as、which 非限定子句加比例表達、deciding 加 whether 子句加代名詞 one」。為了容納參議院的交錯任期,我把前一版「投票率偏低」那一段與州長、州議員的席位數拿掉了,它們仍留在背景說明中;如果你想把其中一項放回句子,我可以再調整。

後記

**制度:**美國聯邦參議院共 100 席,任期六年,每兩年改選約三分之一,是正確的,這是參議員分成三批輪流改選的結果。我在句中用 about a third,是因為每批的席位數是 33 或 34,不是正好三分之一。

**為什麼今年是 35 席:**有解說資料指出,2026 年有 35 席參議院選舉,比一般的 33 或 34 席多。一般理解是,這包括因議員離職或過世而增設的特別選舉。

**選舉已經舉行:**資料顯示,2026 年期中選舉在 11 月3日投票結束,川普執政的共和黨大敗，聯邦参眾議院的過半數多數席位，由在野的民主黨掌控。

**歷史規律:**自 1946 年起,總統所屬政黨在 20 次期中選舉中有 18 次失去眾議院席位,只有柯林頓(1998)與小布希(2002)例外。參議院的情形不同,同一時期總統所屬政黨在 13 次失去席位,卻只有 6 次失去多數控制權,所以句中只寫眾議院。造成這個規律的原因,學者有不同解釋,我沒有在句中判斷。

**在期中選舉那年與總統選舉那年，各有多少州長改選不確定，因為州長任期是由各州州憲規定，有的兩年，有的三年，有的四年。

**「對執政黨的裁決」只是一種常見的說法:**學界也有人認為,期中選舉的結果由地方因素、候選人素質、議題與選民動員決定,並不完全是對總統的評價。