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Module4 Great Scientists Background reading 外研版必修4

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Module4 Great Scientists Background readingPart Two Teaching ResourcesSection 1 Background reading 1. cash crop In agriculture, a cash crop is a crop which is sold for money. The term is used to differentiate from subsistence crops, which are those fed to the producer's own livestock or grown as food for the producer's family. 2. hybrid hybrid , term applied by plant and animal breeders to the offspring of a cross between two different subspecies or species, and by geneticists to the offspring of parents differing in any genetic characteristic. 3. cosmology Cosmology is the study of the universe in its totality and by extension man's place in it. Though the word cosmology is itself of fairly recent origin, first used in Christian Wolff's Cosmologia Generalis (1730), the study of the universe has a long history involving science, philosophy, esotericism, and religion. 4. Cambridge The city of Cambridge is an old English University town and the administrative center of the county of Cambridge shire. It lies approximately 50 miles (80 km) north-northeast of London and is surrounded by a number of smaller towns and villages. It is also at the heart of Silicon Fen, which has a reputation as the leading high-technology center of Britain and is one of the major constituent parts of the Oxford-Cambridge Arc. 5. OxfordOxford is a city and local government district in Oxford shire, England, with a population of 134,248 (2001 census). It is home to the University of Oxford, the oldest university in the English-speaking world. 6. relativity relativity, physical theory, introduced by Albert Einstein, that discards the concept of absolute motion and instead treats only relative motion between two systems o...

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Module4 Great Scientists Background reading 外研版必修4

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