题目

Climate change may actually benefit some plants by lengthening growing seasons and  41   (increase) carbon dioxide. Yet other effects of   42   warmer world, such   43    more pests, droughts, and flooding, will be worse.  44    will the world adapt to the changes? By using an aggressive climate model   45    (know) as Beingbetter. Researchers at the Research Institute predict that by 2050,  46   (suit) farmlands for four top farming   47    (produce), corn, potatoes, rice, and wheat, will have greater changes. In some cases the farmlands will push farmers   48    (plant) new crops. A climate researcher   49    (say) that some farmlands may benefit from warming in the future, but others won’t. However, the winners, researchers say, will be farmers   50   modernize their methods and diversify their fields. 答案：41. increasing    42. a        43. as      44. How    45. known    46. suitable     47. products   48. to plant  49. says    50. that / who

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