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私醫聯招 英文歷屆試題|第 561 題

112 學年度

______ been explained so simply.
  1. Never had genetics before
  2. Before genetics has never
  3. Never before has genetics
  4. Has never genetics before
提示
考否定副詞 Never before 置於句首的倒裝句型。
正確答案

正解:C

詳解
A. 語序錯誤,had 應與 before 配合倒裝,且動詞時態不符現在完成式的倒裝規則。
B. Before 置於句首語序不合邏輯,非慣用倒裝結構。
C. Never before 置於句首時,主詞助動詞須倒裝為 has genetics been…,符合倒裝句型 Never before has genetics been explained so simply。
D. Has 置於 Never 之前語序錯誤,不符倒裝規則。

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