2. 外语
  3. [A]proponents[I]hemp [B]regained[J]essential [C]cultivated[K]opponents [D]revived[L]supplies [E]extremely[M]pres

[A]proponents[I]hemp [B]regained[J]essential [C]cultivated[K]opponents [D]revived[L]supplies [E]extremely[M]pres

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问题     [A]proponents[I]hemp
    [B]regained[J]essential
    [C]cultivated[K]opponents
    [D]revived[L]supplies
    [E]extremely[M]preserved
    [F]another[N]essentially
    [G]produces[O]gives
    [H]alternative
    Much of Canada’s forestry production goes towards making pulp and paper. According to the Canadian Pulp and Paper Association, Canada【C1】______34% of the world’s wood pulp and 49% of its newsprint paper. If these paper products could be produced in some other way, Canadian forests could be【C2】______. Recently, a possible【C3】______way of producing paper has been suggested by agriculturalists and environmentalists—a plant called hemp.
    Hemp has been【C4】______by many cultures for thousands of years. It【C5】______fibre which can be made into paper, fuel, oils, textiles, food, and rope. For many centuries, it was【C6】______to the economies of many countries because it was used to make the ropes and cables used on sailing ships; colonial expansion and the establishment of a worldwide trading network would not have been possible without【C7】______. Nowadays, ships’ cables are usually made from wire or synthetic fibres, but scientists are now suggesting that the cultivation of hemp should be【C8】______for the production of paper and pulp. According to its【C9】______, four times as much paper can be produced from land using hemp rather than trees, and many environmentalists believe that the large-scale cultivation of hemp could【C10】______reduce the pressure on Canada’s forests.
【C2】
选项
答案M
解析 根据句子结构可知，此句需填入一个动词过去分词表被动。根据逻辑关系可知，如果纸质产品用别的方式生产，必然会节约森林树木，从而很好地保护加拿大的森林，所以选[M]preserved。
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