23 Pinecones-Mid

Pinecones FOCUS Question How do pinecones help new pine trees grow?

松果是如何帮助新松树生长的?

What Is a Pinecone? Pine trees have a very special kind of fruit. Pinecones! A fruit is the part of a plant that has seeds. Pinecones hold pine seeds. Do You Know? There are over one hundred kinds of pine trees. Each one has its own type of pinecone.

松果是什么?松树有一种非常特殊的果实。 松果!果实是植物中有种子的部分。 松果里装着松籽。 你知道吗?松树有一百多种。 每个人都有自己的松果类型。

Pinecones come in many sizes. Some pinecones are small. The piñon (pin-YOHN) pinecone is only the size of your thumb. Some pinecones are big. The sugar pine cone is as long as your arm. Another kind of pinecone is as heavy as a gallon of milk!

松果有很多种大小。 有些松果很小。piñon (pin-YOHN)松果只有拇指那么大。 有些松果很大。糖松果和你的胳膊一样长。 另一种松果有一加仑牛奶那么重!

Scales Go Round and Round Pinecones are made of many small pieces of wood. Each piece is a scale. The scales make curved lines in the shape of a spiral around the pinecone. Can you see the spirals on this pinecone?

鳞片一圈一圈地转松果是由许多小块木头做成的。 每一块都是一个刻度。鳞片在松果周围形成螺旋状的曲线。 你能看到这个松果上的螺旋吗?

Two seeds grow inside most scales. The scales stay closed until the seeds are ready to grow into a new tree. The pinecone dries out. The scales open. Now the seeds can fall out.

大多数鳞片里长有两颗种子。 鳞片保持闭合状态，直到种子长成一棵新树。 松果干了。天平打开了。 现在种子可以掉出来了。

Flying Seeds Many pine seeds have tiny wings. The wings help seeds float like paper airplanes. Seeds need dry air to fly. If it rains, the scales on the pinecone close up. Then the seeds stay dry. The scales open again when the rain stops. When the seeds land, they need soil and sunlight to grow.

飞行的种子许多松树种子都有小翅膀。 翅膀帮助种子像纸飞机一样漂浮。 种子需要干燥的空气才能飞行。 如果下雨，松果上的鳞片就会靠近。 然后种子保持干燥。当雨停时，鳞片又会打开。 当种子落地时，它们需要土壤和阳光来生长。