2. 外语
  3. Every year, malaria(疟疾)【S1】______about five hundred million people. More than one million of them die, mostly young children and

Every year, malaria(疟疾)【S1】______about five hundred million people. More than one million of them die, mostly young children and

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问题     Every year, malaria(疟疾)【S1】______about five hundred million people. More than one million of them die, mostly young children and pregnant women in Africa. For several years in sub-Saharan Africa, the Global Fund and other groups have been【S2】______for bed nets treated with long-lasting insect poison. Malaria is【S3】______by mosquito bites. The groups have also invested in anti--malaria drugs for A. C. T. , artemisinin-based combination therapy(青蒿素的组合疗法).
    Recently, a team from the World Health organization visited Ethiopia(埃塞俄比亚), Ghana(加纳), Rwanda(卢旺达)and Zambia(赞比亚). These countries were the first to【S4】______the bed nets and medicine. The Global Fund to Fight AIDS, Tuberculosis(结核)and Malaria requested a study to see if the interventions were【S5】______.
    The researchers found that the answer is yes. They looked at records of children【S6】______five. They found that malaria deaths fell【S7】______sixty-six percent in Rwanda between two thousand five and two thousand seven. Deaths fell by fifty-one percent in Ethiopia, thirty-four percent in Ghana and thirty-three percent in Zambia.
    The team reported that limited supplies of bed nets could help【S8】______the more limited【S9】______in Zambia and Ghana. But the findings in Ghana were more difficult to explain, because deaths from causes other than malaria fell more【S10】______.

    A)by           I)distribute
    B)mostly       J)in
    C)sickens      K)spread
    D)paying       L)effects
    E)explain      M)over
    F)receiving    N)under
    G)helping      O)causes
    H)sharply
【S7】
选项
答案A
解析 本空格应填介词。空格后是具体的数字，用by此处表明变化的幅度。
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大学英语四级

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