Have you ever seen very pretty little fishes, of a bright yellow or golden colour, swimming in a glass bowl of water? Look in the shop-windows, and perhaps you will see some.,
If you save up your money, you may buy a gold-fish some day. It would cost you only a few pence. If you ever get one, you must be very kind to it. You must keep the bowl in a warm room, and fill it with fresh water two or three times a week.,
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可不要忘了喂鱼!金鱼特别喜欢吃的是蚂蚁蛋, 也吃小虫子和面包屑。,
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You must not forget to feed the little fish also. It is very fond of ants’ eggs, and it will eat little worms and insects, and perhaps a few bread-crumbs.,
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好好地照顾金鱼, 金鱼很快就会认识你。只要把手指头放进鱼缸, 金鱼就会向手指头游过来。,
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If you are kind to your gold-fish, it will soon learn to know you. It will then swim to your finger when you put it in the bowl.,
Look at the shape of the fish. It is pointed at each end, which is the best shape for going through the water. Its body is covered with scales, which lap over each other, like the tiles of a roof.,
Do you see the fins of the gold-fish? It has two breast-fins, two belly-fins, a back-fin, a tail-fin, and a fin on its under side near the tail. These fins keep the fish steady as it swims. But how does it swim? It does this by waving its tail from side to side.,
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看看金鱼的两只眼睛, 好亮啊。人类可以闭眼, 金鱼却不能闭眼, 因为金鱼没有眼皮。,
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You can see the two eyes of the gold-fish. They are very bright. It cannot shut its eyes as we can, for it has no eyelids.,
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金鱼也跟人类一样呼吸空气, 不过呼吸的是溶解在水里的空气。金鱼是用鳃吸进水里的空气的。,
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Fishes breathe air as we do, but it is the air which is mixed with the water. The fish draws this air out of the water by its gills.,
Do you see the two flaps, one on each side of the head of the gold-fish, just behind the eyes? Under these flaps there are some folds of red flesh. These are the gills, and they are red because all the blood in the fish’s body passes through them.,
Look how the fish opens its mouth and takes in water. But it does not swallow this water; it lets it run out again through its gills. And as the water passes through them, the gills suck the air out of the water.,
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蒸汽机里的蒸汽也是水。水还用来洒在街道上, 不让尘土飞起来。,
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Water is used to make the steam that works our steam-engines. And we sprinkle it over our streets and roads to keep down the dust.,
Without water there would be no rivers, or ponds, or seas; without water, no trees, or plants, or flowers could live. The world would look very dull without the pretty little brooks and the wide blue ocean. SUMMARY Water is colourless, and it has neither smell nor taste. It is transparent, and because it flows it is called a fluid. Water forms a great part of our blood and our bodies. We wash with it, we cook with it; it makes our steam-engines go; it forms our rivers, our ponds, and our seas. Without it neither plants nor animals could live.,