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It has a short fin near the middle of each side just behind its head, and another pair of short fins between the head and the belly fin. It has also a large tail fin. 在身体每一侧头部下方靠近中间的位置上也分别有一个短鳍, 另外...

Lesson 69 The Finny Plaice 第69课 欧鲽鱼 The plaice is one of the fishes that we call flat fishes, such as the sole, the flounder, and the turbot. It is from twelve to eighteen inches long, and weighs about two or three pounds. As in all the fla...

In the centre of the flower is the green seed-vessel; and if we cut this across, we shall find that it is divided into three parts, each of which contains several young seeds. 位于花朵中间的就是绿色种皮, 我们将其切开, 就会发现,...

Lesson 68 The Hyacinth 第68课 风信子 The wild hyacinth is one of the most beautiful of the flowers of spring-time, and it is also one of the most abundant . In April, May, and June, we may find its flowers in many parts of the woods in such numb...

A single fibre of wool is very weak, but by means of a machine these fibres are twisted together to make woollen yarn, which is a strong, loose thread. This twisting together of the fibres is called spinning. The fibres are curly or wavy, and are als...

Lesson 67 A Talk About Wool 第67课 羊毛漫谈 When we take a country walk in the spring-time, we see the sheep, with its thick, warm covering of wool. But when we see it in summer, its wool is very short. In June the farmer's men wash the sheep,...

The shell is made of lime, and is very brittle. If you do not often give your hens some pieces of chalk or of lime to peck, they will very likely sometimes lay eggs without any shell at all. 蛋壳是石灰质的, 非常脆。如果你喂养的母鸡无...

Lesson 66 Eggs And Chicks 第66课 鸡蛋与小鸡 All birds lay eggs. But just as birds differ very much in size, so do their eggs. The eggs of the little humming-bird are no bigger than peas, while each egg laid by the ostrich is as big as twenty-f...

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...

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...