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高中英语 Unit 5 Into the wild(第1课时)Starting out Understanding ideas学案(含解析)外研版必修第一册-外研版高一第一册英语学案

高中英语 Unit 5 Into the wild(第1课时)Starting out  Understanding ideas学案(含解析)外研版必修第一册-外研版高一第一册英语学案_第1页
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高中英语 Unit 5 Into the wild(第1课时)Starting out  Understanding ideas学案(含解析)外研版必修第一册-外研版高一第一册英语学案_第2页
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高中英语 Unit 5 Into the wild(第1课时)Starting out  Understanding ideas学案(含解析)外研版必修第一册-外研版高一第一册英语学案_第3页
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Unit 5 Into the wildAnimal migrationAnimal migration is the relatively longdistance movement of individual animals, usually on a seasonal basis.It is the most common form of migration in ecology.It is found in all major animal groups, including birds,mammals, fish, reptiles, amphibians, insects, and crustaceans.Different kinds of animal migrate in different ways.·In birdsApproximately 1,800 of the world's 10,000 bird species migrate long distances each year in response to the seasons.Many of these migrations are north—south, with species feeding and breeding in high northern latitudes in the summer, and moving some hundreds of kilometres south for the winter.Some species extend this strategy to migrate annually between the Northern and Southern Hemispheres.The Arctic tern is famous for its migration; it flies from its Arctic breeding grounds to the Antarctic and back again each year, a distance of at least 19,000 km (12,000 miles), giving it two summers every year.·In fishMost fish species are relatively limited in their movements, remaining in a single geographical area and making short migrations for wintering, to spawn, or to feed.A few hundred species migrate long distances, in some cases of thousands of kilometres.About 120 species of fish, including several species of salmon, migrate between saltwater and freshwater.开启快乐学习之旅春夏秋冬,四季轮回。不同的季节里,动物的迁徙也不相同。让我们一起来了解这方面的内容。[知识点击]1.relatively adv.相对地2.approximately adv.大约3.latitude n.纬度4.spawn v.(鱼、蛙等)大量产卵5.salmon n.三文鱼模块核心素养导航第一课时 Starting out & Understanding ideasⅠ.词汇初探1.charity (n.) 慈善机构,慈善团体2.annual (adj.) 一年一度的,每年的3.professor (n.) 教授4.measure (v.)量,测量5.position (n.)位置6...

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高中英语 Unit 5 Into the wild(第1课时)Starting out Understanding ideas学案(含解析)外研版必修第一册-外研版高一第一册英语学案

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