The soil ________ the dead leaves above．


  1. A.
    is made of
  2. B.
    made from
  3. C.
    is made in
  4. D.
    is made by
B
解析：
句意：“土壤是由上面的落葉腐爛而成的。”be made from“由……制成”，從成品表面看不出原料，be made of“用……制成”，從成品表面能看出原料，be made in “由某地生產(chǎn)或制造”“產(chǎn)于某地”，in后接表示地點(diǎn)的名詞，be made by“被……制造”是被動(dòng)語態(tài)，by后接動(dòng)作的發(fā)出者，根據(jù)題意，應(yīng)選項(xiàng)B項(xiàng)。
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科目：高中英語 來源： 題型：閱讀理解

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