文章列表

• 1.双语有声阅读：动物的罗盘
• Animals' Compasses Researchers have found that migrating animals use a variety of inner compasses to help them navigate. Some steer by the position of...
• 2.双语有声阅读：考古学
• Archaeology Archaeology is a source of history, not just a humble auxiliary discipline. Archaeological data are historical documents in their own righ...
• 3.双语有声阅读：细菌
• Bacteria Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. O...
• 4.双语有声阅读：植物学
• Botany Botany, the study of plants, occupies a peculiar position in the history of human knowledge.For many thousands of years it was the one field of...
• 5.双语有声阅读：英属哥伦比亚
• British Columbia British Columbia is the third largest Canadian province, both in area and population. It is nearly 1.5 times as large as Texas, and e...
• 6.双语有声阅读：细胞与温度
• Cells and Temperature Cells cannot remain alive outside certain limits of temperature, and much narrower limits mark the boundaries of effective funct...
• 7.双语有声阅读：公共教育的角色
• Changing Roles of Public Education One of the most important social developments that helped to make possible a shift in thinking about the role of pu...
• 8.双语有声阅读：儿童的数学能力
• Children's Numerical Skills People appear to be born to compute. The numerical skills of children develop so early and so inexorably that it is easy t...
• 9.双语有声阅读：黑猩猩
• Chimpanzee The most striking single fact about chimpanzees is the flexibility of their social life, the lack of any rigid form of organization. It rep...
• 10.双语有声阅读：火力发电厂
• Coal-fired Power Plants The invention of the incandescent light bulb by Thomas A. Edison in 1879 created a demand for a cheap, readily available fuel ...