英国学生科学读本 第50期:只是一块石头(1)

Lesson 50 Only A Stone 第50课 只是一块石头 What is the oldest thing you have seen? One boy thinks it is a church, for he has seen a date on one which tells that it was built hundreds of years ago. 小朋友，你见过的最古老的东西是什

英国学生科学读本 第54期:硬壳螃蟹(1)

Lesson 54 The Crusty Crab 第54课 硬壳螃蟹 Crabs are good to eat. The next time you have one for your supper, I should like you to look at it very carefully, and try to learn what kind of an animal it is. 螃蟹也是美味的食物。小朋友，

英国学生科学读本 第49期:栗子

Lesson 49 Chestnuts 第49课 栗子 How nice it is to go for a country walk in the spring, when everything looks fresh and green, and the air is not too hot! Probably we shall not have to go very far before we see the fine large shady tree called the

英国学生科学读本 第48期:关于狗的其他事情(2)

Spaniels are rather small dogs, with curly hair and long ears. The mastiff is a big dog with a smooth coat. He is the best kind of dog for watching the house and frightening away robbers. 西班牙猎犬也叫狗，个头很小，卷毛，长长的耳朵

英国学生科学读本 第48期:关于狗的其他事情(1)

Lesson 48 More About The Dog 第48课 关于狗的其他事情 The different kinds of dogs are so unlike each other, that it is hard to believe that they all come from the same family. What a difference there is in their coats! Dogs like the greyhoun

英国学生科学读本 第47期: 人类的朋友(2)

The dog has bright and knowing eyes, but he cannot see at night so well as the cat can. The pupil, or little black space in the middle of each eye, is never so large as that of the cat. Pussy chases the mice by night, but the dog hunts only in the da

英国学生科学读本 第47期:人类的朋友(1)

Lesson 47 Our Friend The Dog 第47课 狗人类的朋友 Cats usually like the house in which they live better than they like the people who live in it. They will leave a kind mistress and go back to their old homes. But if we are kind to our dogs, t

英国学生科学读本 第46期: 一杯咖啡(2)

When the coffee-berries are ripe, they are either picked or shaken off the tree into cloths spread out below. 咖啡浆果成熟的时候, 就让工人摘下来, 或者从树上摇下来, 落到树下面铺着的布上。 The berries are then dried i

英国学生科学读本 第45期: 一种叫鳎的比目鱼(2)

There are also two pairs of fins lying just behind its head, a large pair and a small pair, near the ends of the slits, where the gills or lungs of the fish are placed. 在脑袋后面还有两对鳍, 一对比较大, 一对比较小, 就在鱼鳃开口

英国学生科学读本 第45期:一种叫鳎的比目鱼(1)

Lesson 45 The Flat Fish Called The Sole 第45课 一种叫鳎的比目鱼 Does your mother ever give you fish for dinner? If so, I dare say that you have eaten the fish called the sole. From the shape of its body it is called a flat fish. 小朋友, 妈

英国学生科学读本第44期:砖是怎么做出来的(2)

In hot countries bricks are often used which have simply been dried in the sun in this way. But these sun-dried bricks will not stand much rain: the water soaks into them, and they once more become lumps of soft clay. 在炎热的地区，以前经常把

英国学生科学读本 第46期: 一杯咖啡(1)

Lesson 46 A Cup Of Coffee 第46课 一杯咖啡 If you ask a grocer for some coffee, he will give you a dark-brown powder which has a strong, pleasant smell. 你去杂货商那儿买咖啡, 他会给你一种深棕色的粉末, 散发着强烈的香味

英国学生科学读本 第41期:糖是怎么生产的(1)

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

英国学生科学读本 第40期:甘蔗(2)

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

英国学生科学读本 第41期:糖是怎么生产的(2)

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

英国学生科学读本 第42期:调皮的麻雀(1)

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

英国学生科学读本 第42期:调皮的麻雀(2)

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

英国学生科学读本 第43期:一块粘土(1)

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

英国学生科学读本 第43期:一块粘土(2)

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

英国学生科学读本 第44期:砖是怎么做出来的(1)

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