英国学生科学读本 第8期:一块腻子

Lesson 8 A LUMP OF PUTTY 第八课 一块腻子（油灰） Did you ever see a man put in a pane of glass? He first cuts away the hard stuff which holds the old glass in its place. This hard stuff is called putty. Then with some fresh putty he fixes

英国学生科学读本 第4期:黑铅

Lesson 4 Black-lead 第四课 黑铅 What is the black-lead in your pencil made of? If you take a bit of the metal which we call lead, you will find that it is grey in colour, very heavy, and not at all like the black-lead in your pencil. But the lea

英国学生科学读本 第57期:硫(1)

Lesson 57 Sulphur 第57课 硫 Did you ever have to take a mixture of brimstone and treacle? This mixture has not a pleasant taste, but it is a useful medicine; and if it will do us good, we should not care much whether it has a nice taste or not. 小朋

英国学生科学读本 第56期:黄色的报春花(2)

One kind has in its eye a little green knob just like the head of a pin; these are called pin-eyed. The other kind has a fringe of little yellow dust-spikes instead; such flowers are called thrum-eyed. 其中一种的眼中，有一个小小的绿球，

英国学生科学读本 第57期:硫(2)

The fumes of burning sulphur will bleach straw, silk, and other things, and make them white and clean. These fumes are also useful for killing the germs which cause fevers and other diseases. 燃烧的硫磺冒出的烟，可以漂白稻草、丝绸和

英国学生科学读本 第77期:百货不如皮货(1)

Lesson 77 There's Nothing Like Leather! 第77课 百货不如皮货 Every child who reads this book knows that leather is made from the skins of animals. We cannot, of course, call any piece of skin leather; it must be carefully prepared before we ca

英国学生科学读本 第73期:玻璃窗(2)

Glass is made chiefly of fine white sand or silica melted in a furnace. To make the sand melt easily, we must mix with it some soda, some chalk or lime, and a small quantity of broken glass. 玻璃主要由细致的白沙或硅石在熔炉中炼成。为

英国学生科学读本 第65期:洋葱(1)

Lesson 65 The Onion 第65课 洋葱 Onions have a very strong smell, which many people dislike; but for all that they are a very good and wholesome food. The onion is a hardy plant, and is easily grown. Let us go to a seed-shop and buy an ounce of on

英国学生科学读本 第65期:洋葱(2)

An onion can be easily pulled to pieces, for its bulb is made of a great many thick juicy leaves, all growing closely together. 我们可以轻而易举地将洋葱剥开, 分成很多片, 因为它的球茎由许多厚厚的多汁叶片构成, 彼此之

英国学生科学读本 第60期:卷心菜(2)

Instead of cutting all our cabbage plants, we shall leave a few in the ground until the end of the summer. Soon the heart of each plant will open, and long stems will grow up from its centre. Small yellow flowers then appear on these stems. Each flow

英国学生科学读本 第64期:红色金属--铜(1)

Lesson 64 The Red Metal Called Copper 第64课 红色金属铜 There is only one metal which is red in colour. Its name is copper. On the shores of Lake Superior in North America, lumps of pure copper are found in the rocks; but in Cornwall , and in

英国学生科学读本 第62期:吃苦耐劳的驴子(2)

There is a clear space in the jaws between the front and the back teeth, and into this space we put the steel bit to which the reins are fastened when we drive or ride the donkey. 在驴子前后牙齿之间的腭部有一片空白区域，我们将铁

英国学生科学读本 第40期:甘蔗(1)

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

英国学生科学读本 第35期:蒸汽往上冒(1)

Lesson 35 Getting up Steam 第35课 蒸汽往上冒！ Do you want to know what steam is? Let us get a lump of ice, or a snow-ball, and place it in a saucer in a warm room. It soon melts, and then the saucer is half full of water. If we leave the sau

英国学生科学读本 第38期:人类的帮手-马(1)

Lesson 38 Our Helper, The Horse 第38课 人类的帮手马 The horse is an animal which seems to have been made for helping us in our daily work. we ride on its back, and we get it to pull heavy loads in carts. 马这种动物, 似乎生来就是为人

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