新概念英語(yǔ)文章教程匯總和更新

　　We tell river all our secrets. We knowinstinctively, just as beekeepers with theirbees, that misfortune might ... [查看全文]

　　Our Neighbour, the River 河流，我們的鄰居　　The river which forms the eastern boundary ofour farm has always p... [查看全文]

　　If we were able to discover lowly forms oflife like bacteria on another planet, it would completely change o... [查看全文]

　　For most of the earth's history they havebeen the only form of life on our planet. As Earth-dwellers, we... [查看全文]

　　In the first instance, we would be looking for plant life, rather than 'little green men'.The life fo... [查看全文]

　　Even a telescope in orbit round the earth, like the verysuccessful Hubble telescope, would not be suitable be... [查看全文]

　　The development of such a telescope will be one of the greatastronomical projects of the twenty-first century.... [查看全文]

　　Alternatively, if the star were small, the life-supporting planet would have to have aclose orbit round it an... [查看全文]

　　Whether a planet can support life depends on the size and brightness of its star, thatis its 'sun'. ... [查看全文]

　　The first question to answer iswhether a planet can actually support life. Inour won solar system, for exampl... [查看全文]