文章列表
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1.英国学生科学读本 第44期:砖是怎么做出来的(1)
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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. ...
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2.英国学生科学读本 第43期:一块粘土(2)
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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,...
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3.英国学生科学读本 第43期:一块粘土(1)
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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 lik...
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4.英国学生科学读本 第42期:调皮的麻雀(2)
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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 fi...
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5.英国学生科学读本 第42期:调皮的麻雀(1)
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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 ...
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6.英国学生科学读本 第41期:糖是怎么生产的(2)
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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...
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7.英国学生科学读本 第41期:糖是怎么生产的(1)
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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 ...
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8.英国学生科学读本 第40期:甘蔗(2)
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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 narro...
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9.英国学生科学读本 第40期:甘蔗(1)
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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 w...
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10.英国学生科学读本 第39期:柔韧的软金属-铅(2)
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When the sheets are very thin, they are called lead-foil. A great deal of lead-foil is used in China, to line the chests in which tea is sent to Europ...