2-1. Why, you may wonder, should spiders be our friends?
【译文】你可能会奇怪，蜘蛛怎是吾友？

298'

2-2. Because they destroy so many insects, and insects include some of the greatest enemies of the human race.
【译文】因为它们消灭了那么多昆虫，包括一些属于人类最大敌人的昆虫。

293'

2-3. Insects would make it impossible for us to live in the world; they would devour all our crops and kill our flocks and herds, if it were not for the protection we get from insect-eating animals.
【译文】昆虫可以使我们无法在地球上生存。如果不是食虫动物的保护，则这些昆虫会吞噬我们所有的庄稼，杀死我们成群的牛羊。

282'

2-4. We owe a lot to the birds and beasts who eat insects but all of them put together kill only a fraction of the number destroyed by spiders.
【译文】我们受惠于食虫的飞禽鸟兽，但把它们都算在一起，也只是捕杀了蜘蛛消灭的昆虫数的一个零头。

175'

2-5. Moreover, unlike some of the other insect eaters, spiders never do the least harm to us or our belongings.
【译文】此外，不同于其他一些食虫动物，蜘蛛对人类及其财物丝毫无损。     

149'

2-6. Spiders are not insects, as many people think, nor even nearly related to them.
【译文】蜘蛛不像许多人认为的那样属于昆虫，它们甚至与昆虫毫无关系。

298'

191'