7．I bought an ancient vase，_____ was very reasonable．（　　）
A．the price of whichB．the price of whose
C．which priceD．its price

分析 我買了一個(gè)古花瓶，它的價(jià)格很合理．

解答 答案：A考查非限制性定語從句． the price of which was very reasonable 為非限制性定語從句，其中的 the price of which 相當(dāng)于 and its price 或 and the price of it．假若空格前有并列連詞 and，則可選 D．B、C項(xiàng)屬于錯(cuò)誤表達(dá)．

點(diǎn)評 考查定語從句，要搞清楚句子成分，找出從句的先行詞及從句與先行詞之間的邏輯關(guān)系，把主句與從句分別翻譯出來，然后依照邏輯關(guān)系把句子銜接起來．引導(dǎo)定語從句的關(guān)系代詞有who，whom，whose，which，that等和關(guān)系副詞where，when，why等，關(guān)系代詞和關(guān)系副詞在定語從句中擔(dān)任句子成分．如果該從句中缺少主語、表語、賓語或定語，就要用關(guān)系代詞來連接從句；如果從句中缺少狀語，就得用關(guān)系副詞來連接從句．

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