Lesson 70 Evaporation 第70课 蒸发作用 Let us fill a small kettle with water, and place it on the fire. The water will soon begin to boil. After an hour or so we shall find the kettle quite empty, although no one has touched it since it was plac...
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,...
Lesson 36 The Useful Sheep 第36课 浑身是宝的绵羊 The sheep is not very much like the cow, is it? It is much smaller, and it has quite a different kind of coat.But still the sheep and the cow are of the same familythe large family of animals...
英国学生通过卖身和赌博来偿还高利息贷款 University students in the U.K. are having such a hard time making ends meet that they are resorting to desperate measures. Many have turned to gambling, taking out high-interest loans and eve...
A group of Chinese teachers has blamed the generosity of Britain's benefits system for lack of ambition, ill-discipline and idleness among school pupils. They believe the option of living on welfare handouts has produced 'feather-bedded' teenagers pr...
