Lesson 82 The Garden Snail 第82课 花园中的蜗牛 The winkle which you pick out of its shell with a pin and eat is a sea-snail. But we have now to talk about the common land-snail, which creeps about our gardens. It has a house on its back, in t...
The torn rags are then boiled in water to which lime and soda have been added. This mixture removes all grease, stains, and colouring matters. The clean white rags are next put with water into another machine, which pulls the fibres apart, tears them...
Lesson 81 A Sheet Of Paper 第81课 一张纸 Let us tear a piece of blotting-paper across and look at the torn edges. We see that the paper is made of a great many very fine little threads or fibres. If we pull a cotton thread or a piece of twine to...
The rock called sandstone is made up of a great many grains of sand. The beating of the rain on this rock washes the grains apart, and so the hard sandstone slowly changes into loose sand. 砂岩主要由大量沙粒组成。当雨水打下来的时候...
Lesson 80 The Soil Beneath Our Feet 第80课 我们脚下的土地 Perhaps you have seen men digging in the earth, either preparing for the foundations of a house, or making a deep ditch or a railway cutting. If you watch them at work, you will see t...
With these claws the hedgehog can burrow in the earth under the roots of trees, or in old walls; and in such places he often makes his home. 凭借这些锋利的工具, 刺猬能够在树根或老墙之下打洞穿行, 通常也都在这些地方安家...
Lesson 79 The Prickly Hedgehog 第79课 扎人的刺猬 The hedgehog is a common animal in every part of Great Britain where he can find suitable food and lodgings . We can easily see how he has got his name. He is often found at the bottom of our he...
This is because they grow beneath the ground, where the sun's light does not reach them. The green colour of plants is produced by the action of the sun's light. Plants grown in the dark are white and unhealthy. 这是因为它生长在阳光无法照射...
Lesson 78 Violets And Pansies 第78课 紫罗兰与三色堇 How pleasant it is to stroll along the lanes in early spring-time, and to find the lovely blue or white violets hiding in the grass by the roadside! Wild pansies, too, which are of the same...
When the tanned skins are taken out of the pits, they are well dried and rolled. After this has been done, we no longer call them skins, but leather. To finish the leather, it must be curried. This is done by rubbing into its pores as much oil and ta...
