以下是引用寂寞的自由在2003-12-8 8:54:00的发言:7.If a single strain of plant is used for a given crop over a wide area, a practice fostered by modern seed-marketing methods, it increases the likelihood that the impact of a single crop disease or pest will be disastrous. A--àE (A) If a single strain of plant is used for a given crop over a wide area,a practice fostered by modern seed-marketing methods,it (B)If a single strain of plant is used for a given crop over a wide area, as is fostered by modern seed-marketing methods, it (C)A single strain of plant used for a given crop over a wide area, a practice fostered by modern seed-marketing methods, (D)The use of a single strain of plant for a given crop over a wide area, a practice fostered by modern seed marketing, methods, (E)The use of a single strain of plant for a given crop over a wide area, a practice fostered by modern seed-marketing methods, 答案是E,这个题怎么考虑啊?哪位朋友能解释一下每个选项为什么对?为什么错?谢谢大家的帮助
我又好好考虑了一下,其他选项我没有问题的,可是对于A,为什么不能理解为A PRACTICE是指前面整个IF句子表达的内容呢?如果可以指代IF句子所说的内容,那么A也没问题啊。其他的自由明白为什么错了,谢谢大家再次帮助 |