说到纸,大家肯定会想到笔。同样,笔也有着非常悠久的历史。我们现在普遍使用的是中性笔和圆珠笔,画画儿和绘图时会用铅笔(小学生必须使用铅笔)。但是在笔被发明之前,古人用什么书写呢?据考古学家发现,尖尖的石头和树枝是最早的书写工具。洞穴人用石头或树枝,蘸上用植物和浆果制成的颜料(或叫墨水),把图案画在洞穴壁上。后来逐渐有了各种笔。从尖石头到笔,这是一个逐渐发展的过程。随着网络和电子产品的不断 Speaking of paper, everyone will certainly think of pen. Similarly, pen also has a very long history. We are now generally using gel pens and ballpoint pens. Pencils are used when drawing children and drawing (elementary students must use a pencil). But what did the ancients write before the pen was invented? According to archaeologists, sharp stones and branches were the earliest writing instruments. Cave people use stones or branches, dipped in paint made of plants and berries (or called ink), the pattern painted on the cave wall. Later, gradually have a variety of pens. From sharp stone to pen, this is a gradual process. With the continuous network and electronic products