在线英语听力室_免费在线英语听力学习网站

Lesson 44 How Bricks Are Made 第44课 砖是怎么做出来的 We know that bricks are made of burned clay; but let us try to learn something more about them. Have you ever measured a brick? If you do so, you will find that its length is nine inches...

What has become of the water? Dry clay is full of tiny pores, and it has sucked up the water into its pores. 水上哪儿去了？干燥的粘土满是细小的孔洞，把水都吸到孔洞里去了。 Now let us mould our lump of soft clay into the...

Lesson 43 A Lump Of Clay 第43课 一块粘土 Do you know where clay comes from? If you take a long walk near the town in which you live, you will very likely find some deep hole or pit in the ground from which men are digging out the stuff we call...

In this way the sparrows do a great deal of good. If the grubs were not killed, they would eat up our garden plants, and the crops that grow in our fields. 这样, 麻雀就做了不少好事！如果麻雀不吃小虫子, 虫子就会把我们菜园里...

Lesson 4 The Saucy Sparrow 第4课 调皮的麻雀 What little birds are these that build their nests in our great cities, and do not mind the smoke and the noise and the bustle? What little birds are these that hop about our crowded streets, and pic...

The raw sugar is first dissolved in water, and is then carefully strained to make it clear. It is next boiled in large pans until the water has nearly all passed away as steam. 首先把粗糖溶解在水里, 进行严格的过滤, 把糖水滤清。然...

Lesson 41 How Sugar Is Made 第41课 糖是怎么生产的 After the negroes have cut up the stems of the sugar-cane into short lengths, they carry these to a building where there are a number of heavy iron rollers, which are turned by a steam-engine...

These stems are filled with soft pith, which containsa sweet juice when the sugar-cane is fully grown and ripe. The plant has long, straight and narrow leaves, and at the top there grows a tassel of rose-coloured flowersabout two feet in length. 甘蔗...

Lesson 40 The Sugar-Cane 第40课 甘蔗 Have you a sweet tooth? Do you like things with sugar in them? If you do (and I am almost sure that you do),you will like this lesson, for it will tell you where sugar comes from, and all about it. 小朋友，你...

When the sheets are very thin, they are called lead-foil. A great deal of lead-foil is used in China, to line the chests in which tea is sent to Europe. 特别薄的薄片儿就叫做铅箔, 中国就是用大量的铅箔来垫在茶叶箱里, 做成铅...