文章列表

• 1.英国学生科学读本 第89期:云和雨(1)
• Lesson 89 Clouds And Rain 第89课 云和雨 Each of us drinks about three pints of fresh water every day, and we use a great deal of water for washing, fo...
• 2.英国学生科学读本 第88期:冷凝(3)
• When we change a liquid into vapour, and cool this vapour till it is liquid again, 将水加热成水蒸气, 然后对其进行冷却直至再次液化, we are said to dist...
• 3.英国学生科学读本 第88期:冷凝(2)
• Thus by heating liquids we cause them to evaporate, or change into vapours or gases; 因此, 可以看出：我们能够通过加热液体使得它们蒸发, 变成水蒸气或气...
• 4.英国学生科学读本 第88期:冷凝(1)
• Lesson 88 Condensation 第88课 冷凝 When the water in a kettle boils, it boils first at the bottom. 当水壶中的水沸腾时, 首先开始沸腾的是底部的水。 We c...
• 5.英国学生科学读本 第87期:蚯蚓(2)
• These bristles point backwards. 这些刚毛朝向后方。 If we move a finger along the worm from the head to the tail, the body feels quite smooth; 用一根手...
• 6.英国学生科学读本 第87期:蚯蚓(1)
• Lesson 87 The Earth-worm 第87课 蚯蚓 The earth-worm is also called the dew-worm, because it likes to come out of its hole and creep about when the gra...
• 7.英国学生科学读本 第86期:太阳,月亮与星星(2)
• Each of the fixed stars is a sun, very much like our own sun, but so far away from the earth that it only looks like a speck of light. 每一颗恒星都是...
• 8.英国学生科学读本 第86期:太阳,月亮与星星(1)
• Lesson 86 Sun, Moon, And Stars 第86课 太阳、月亮与星星 You know that everything which affects your senses is called matter, and that the earth is a gr...
• 9.英国学生科学读本 第85期:可可与巧克力(2)
• Some people like to make their cocoa by boiling the nibs in water. 有些人喜欢用水来煮可可粒, When this is done, a layer of cocoa-butter is formed on t...
• 10.英国学生科学读本 第85期:可可与巧克力(1)
• Lesson 85 Cocoa And Chocolate 第85课 可可与巧克力 You have all, no doubt, drunk a cup of cocoa, and you have also eaten part of a cocoanut. 毫无疑问, ...