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英语翻译There are over 37,000 known species (种) of spiders in di

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英语翻译
There are over 37,000 known species (种) of spiders in different shapes and sizes in the world.The largest spiders live in the rain forests of South America and are known as the "bird-eating" spiders.These spiders can grow up to 28cm long and they eat small birds.The smallest spiders are from Western Samoa.These tiny spiders are less than 0.5mm long.They live in the plants that grow on mountain rocks.
Some people like to keep spiders as pets,but most people don't like touching them.A great number of people are afraid of them,mainly because of their poison — something will cause death or harm.However,only thirty species of spiders are very dangerous to humans.Spiders provide benefits for humans by catching and eating insects,such as flies and mosquitoes (蚊子).
Spiders are different from other animals,because they make webs to catch the small insects for food.The special silk of a spider's web is light and strong — five times stronger than steel.Some people have tried to raise spiders in order to collect their silk,but no one has ever succeeded in doing it.One reason is that it takes 670,000 spiders to produce half a kilo of silk,and all of these spiders need living insects for their food.Besides,spiders are usually solitary (独自的) animals,and need to be kept alone.
All in all,people are amazed to learn that there are so many secrets in spiders!
世界上已知的不同形状,不同大小的蜘蛛有超过37000种.世界上最大的蜘蛛生活在南美洲的热带雨林里,被称为“捕鸟蛛” .这些蜘蛛可以长到28厘米长,他们吃小型鸟类.最小的蜘蛛来自于西萨摩亚.这些微小的蜘蛛只有不到0.5mm长.他们居住在岩石上的植物中.
有些人喜欢把蜘蛛当宠物养,但大多数人不喜欢触碰蜘蛛.很多人怕蜘蛛,主要是因为他们身上的毒会导致死亡或对人造成伤害.但事实上,只有30种蜘蛛对人类是很危险的.蜘蛛对人类是有益的,因为他们捕捉昆虫,如苍蝇和蚊子.
蜘蛛不同于其他动物,因为它们用网捕捉小昆虫.蜘蛛网上那种特殊的丝既轻又结实,比钢还要强五倍.有些人试图通过养蜘蛛来得到他们吐出来的丝,但是没有人成功.其中一个原因是产出半公斤的丝需要670000个蜘蛛,而这些蜘蛛需要获得昆虫作为食物.另外,蜘蛛通常是独行的物种,需要单独饲养.
总的来说,蜘蛛有这么多有趣的秘密,让人感到十分神奇.
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