No one knows ______effects the GM material might have on the food chain.


  1. A.
    what
  2. B.
    which
  3. C.
    whose
  4. D.
    how
A
試題分析：考查賓語(yǔ)從句，what在賓語(yǔ)從句中可做主賓表和定語(yǔ)，這里what修飾effects，句意是：每人知道GM材料會(huì)對(duì)食物鏈有什么樣的影響。選A。
考點(diǎn)：考查what引導(dǎo)的賓語(yǔ)從句
點(diǎn)評(píng)：如果賓語(yǔ)從句缺少主賓表和定語(yǔ)要考慮用what，做題是關(guān)鍵時(shí)分析句子成分。
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