DK insects and spiders explore nature with fun facts and activities昆虫和蜘蛛通过有趣的事实和活动探索大自然

Looking at insects
看昆虫
Many insects are so small that you cannot see them in detail, so they might not seem interesting. However, with a few pieces of equipment and some practice, you can soon learn about their fascinating ways and habits. Look for insects on leaves and flowers, under stones and logs, and in the soil.
很多昆虫都很小，你看不到它们的细节，所以它们看起来可能并不有趣。然而，通过一些设备和一些练习，你很快就能了解他们迷人的方式和习惯。在树叶和花朵上、石头和原木下以及土壤中寻找昆虫。

Drawing
绘画
Make a sketch of what you see. Label features such as wings or unusually shaped legs. Note the insect’s size, color, and where it lives. You can finish the sketch later— and you’ll soon improve with practice.
把你看到的东西画一个草图。为特征（如翅膀或形状异常的腿）添加标签。注意昆虫的大小、颜色和生活地点。你可以稍后完成这张草图，很快你就会通过练习提高。

What is an insect?
什么是昆虫？
There are more than a million types of insect. Check that a creature is an insect by using the 3 + 3 rule. A typical insect has three parts to its body: head, thorax (middle part), and abdomen (end part). An insect also has three pairs of legs. Many insects have wings and antennae, or “feelers,” on the head.
昆虫的种类超过一百万种。使用3+3规则检查生物是否为昆虫。典型的昆虫身体有三部分：头部、胸部（中部）和腹部（末端）。昆虫也有三对腿。许多昆虫的头部有翅膀和触角，或“触角”。

Are spiders insects?
蜘蛛是昆虫吗？
Spiders are not insects, because spiders have four pairs of legs. A spider’s body has only two parts: the first part is a combined head and thorax, and the second part is the abdomen.
蜘蛛不是昆虫，因为蜘蛛有四对腿。蜘蛛的身体只有两部分：第一部分是头部和胸部的结合，第二部分是腹部。
Spiders are related to scorpions, ticks, and mites. Together, these form the group called arachnids.
蜘蛛与蝎子、蜱和螨虫有亲缘关系。它们一起组成了一个叫做蛛形纲动物的群体。

Legs and leaping
双腿跳跃
Most adult insects move swiftly on their six legs. They may not seem very fast to us because they are so small. If an ant were as big as a human, however, it could run five times faster than an Olympic sprinter, while a human-sized flea could leap over a 40-story building.
大多数成虫用六条腿快速移动。因为它们太小了，所以在我们看来它们可能不是很快。然而，如果一只蚂蚁和人类一样大的话，它可以跑得比奥运会短跑运动员快五倍，而一只人类大小的跳蚤可以跳过一座40层的大楼。

Walking on water
在水上行走
Where air and water meet, a stretchy “skin” forms at the water’s surface. Since many insects are tiny, this skin is strong enough to support them. Some bugs and beetles can run on it. Underwater insects hang from it and poke their breathing tubes up into the air, or collect air bubbles.
在空气和水相遇的地方，水的表面会形成一层有弹性的“皮肤”。因为许多昆虫都很小，所以它们的皮肤很结实，足以支撑它们。一些虫子和甲虫可以在上面跑。水下的昆虫悬挂在上面，将它们的呼吸管插入空气中，或者收集气泡。

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