[考題] 北門高中英文 Q19 20

[maniac (maniac)]

19. As urbanization continues, 6.4 billion city dwellers will need access to

    energy. That is, 80% of all greenhouse gases are caused by the _____ of

    cities for energy.

    (A) ignition   (B) liability    (C) obligation    (D) appetite


答案D 不知道怎麼解釋

20. The _____ behind lung cancer is smoking and air pollution;

    thus, those who are susceptible to cancer are advised

     to avoid smoking and second-hand smoking.

(A) likelihood  (B) culprit     (C) magnet       (D) catalyst


 答案是B 想請問為什麼D不可以選


謝謝^^

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推 larondine:其實就真的是題目出爛了@@
→ larondine:韋氏字典 culprit: the source or cause of a problem
→ larondine:catalyst: an agent that provokes or speeds
→ larondine:significant change or action
→ larondine:現在就是看你覺得抽菸跟空污到底是肺癌兇手還是催化劑了
推 kevinisadog:考搭配字 catalyst "for" vs. culprit "behind"
推 Christabelle:appetite for 城市渴望能源造成溫室效應
→ maniac:明白了 謝謝大家的解答~~