2. 外语
  3. The Tomato Growers Association, or TGA, has set out to grow a【B1】______tomato at an【B2】______farm near San Diego, California. Em

The Tomato Growers Association, or TGA, has set out to grow a【B1】______tomato at an【B2】______farm near San Diego, California. Em

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问题     The Tomato Growers Association, or TGA, has set out to grow a【B1】______tomato at an【B2】______farm near San Diego, California. Employing biotechnology and developments in DNA research, the TGA has determined to grow the "tomato of tomorrow." By【B3】______a repellent in the form of an odor, the tomato plant would be able to fight off【B4】______by insects. It would【B5】______disease and rot, and would【B6】______its shape when【B7】______at the bottom of a【B8】______of tons of tomatoes.
    【B9】______. Its heavy, thick leaves would prevent it from becoming sunburned. All tomatoes on a plant would ripen at the same time, to prevent the loss from machine harvest of under- or- overripened fruit.【B10】______While development of this plant will prove to be extremely expensive, TGA scientists believe that【B11】______.
【B3】
选项
答案emitting
解析 介词by后一定要接名词，故此处的动词要加-ing。注意重读闭音节要双写最后一个辅音字母。repellent 意为“驱虫剂”，odor意为“气味”，因此此处应填emit，表示“释放(气味)”。
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大学英语四级

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