做过托福阅读的学生都知道托福阅读有十大问题，其中最不存在的问题是什么？这可能是指代理问题。这类问题的数量并不多，在没有额外测试的情况下，三篇文章可能只会得到一个代理问题。在TPO1-53的所有问题中，共有23个代理问题。这可能会给大多数学生一种错觉，代理似乎并不那么重要。但这样一个小指，会影响我们做其他问题的正确性和速度。这个问题让新航道的沈阳托福培训小编来解答！
[TPO34] Protection of Plants by Insects
Paragraph 5: … Observations leave little doubt that ants protect morning glory flowers and fruits from the combined enemy force of grasshoppers, caterpillars, and seed beetles. Bentley compares the seed production of six plants that grew where there were no ants with that of seventeen plants that were occupied by ants. Unprotected plants bore only 45 seeds per plant, but plants occupied by ants bore 211 seeds per plant. Although ants are not big enough to kill or seriously injure grasshoppers, they drive them away by nipping at their feet. Seed beetles are more vulnerable because they are much smaller than grasshoppers. The ants prey on the adult beetles, disturb females as they lay their eggs on developing fruits, and eat many of the eggs they do manage to lay.
According to paragraph 5, ants defend morning glory plants from seed beetles in each of the following ways EXCEPT
A) driving adult beetles off the plants by nipping at their feet
B) catching and eating adult beetles
C) ating beetle eggs they find on developing fruits
D) making it difficult for beetles to lay eggs on developing fruits
Step 1:
根据否认事实问题的解决方案，首先关注选项，并使用选项中的一些特殊词来定位原段落。然后让我们划定位词。
A) driving adult beetles off the plants by nipping at their feet
B) catching and eating adult beetles
C) eating beetle eggs they find on developing fruits
D) making it difficult for beetles to lay eggs on developing fruits
Step 2:
运用选项中的定位词，在文本中找到具体的句子
… Bentley compares the seed production of six plants that grew where there were no ants with that of seventeen plants that were occupied by ants. Unprotected plants bore only 45 seeds per plant, but plants occupied by ants bore 211 seeds per plant. Although ants are not big enough to kill or seriously injure grasshoppers, they drive them away by nipping at their feet. Seed beetles are more vulnerable because they are much smaller than grasshoppers. The ants prey on the adult beetles, disturb females as they lay their eggs on developing fruits, and eat many of the eggs they do manage to lay.
要做到这一步，有些学生可能会感到困惑，如何有四个选项，如果他们不熟悉prey（捕食）这个词，他们很可能会错误地选择B选项。
好吧，让我们来看看宝宝 nipping at their 在feet部分，有一个their，那么当我们回头看their的指代内容时，我们会发现their实际上指的是grasshoppers。这与标题中的ants有关 defend morning glory plants from seed beetles发生了冲突，所以正确的答案应该是A。
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