外研版最新-2021学年新教材高中Unit5Intothewild第

Animal 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 birdsApproximately1,800 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．determine (v.)测定，确定7．eventually (adv.)终于，最终8．solution (n.)解决，解决方法→solve (v.)解决，解答9．amazing (adj.)惊人的，了不起的→amaze(v.)使吃惊，惊讶10．crash (v.)暴跌11．destroy (v.)破坏，毁掉12．creature (n.)生物13．survive (v.)活下来，幸存→survivor(n.)幸存者，生还者，残存物14．effect (n.) 影响，结果Ⅱ.短语互译1．from one place to another 从一个地方到另一个地方2．设法做成manage_to_do3．when necessary 在必要时，在必需时4．在过去的几年里in_the_last_few_years5．砍倒，削减cut_down6．导致，造成lead_to7．make sure 确保，保证8．以……为食feed_on9．再次，又一次once_again10．在非常危险、受罚、痛苦、忧虑等的困境中in serioustroubleⅢ.语篇理解Step Ⅰ.Read the text and choose the best answers.1．What's the passage mainly about?A．The North American monarch butterflies' life.B．The North American monarch butterflies' natural behaviour.C．People's research of the North American monarch butterflies.D．The North American monarch butterflies' migration.答案：D2．What's the reason for most animals' migration?A．They migrate to find food.B．They migrate to find a partner.C．They migrate to search of warmer weather.D．All the above.答案：D3．How do the North American monarch butterflies manage to reach south to spend their winter there?A．By their ability of telling the time of the day.B．By their ability of measuring the position of the sun.C．By their ability of telling the time of the day and measuring the position of the sun.D．By their eyes.答案：C4．What is the main reason why the North American monarch butterflies are crashing?A．The climate change.B．The global warming.C．Human activities.D．Their predators(天敌)．答案：C5．Which of the following is true?A．A greater awareness and appreciation of the North American monarch butterflies has resulted in a better understanding of the North American monarch butterflies' behaviour.B．Every fall, millions of the North American monarch butterflies begin their long and hard migration journey.C．The most wonderful mass migration is that of the North American monarch butterflies.D．The less we know about the North American monarch butterflies, the greater the chance they will survive.答案：BStep Ⅱ.Decide whether the following sentences are true or false.1．Of all the mass migrations, that of the North American monarch butterflies is the most wonderful.(　F　)2．The North American monarch butterflies travel about 4,000 kilometers south to spend the winter there.(　T　)3．The North American monarch butterflies finally manage to reach California or Mexico only by using their eyes to measure the position of the sun.(　F　)4．The North American monarch butterflies' population has decreased by 90% in the last few years.(　T　)5．In order to protect their population we humans shouldn't disturb their life by recording their migration.(　F　)Step Ⅲ.Fill in the blanks according to the text.The North American monarch butterflies' migration is one of the 1.most_wonderful (wonderful)．Every fall, millions of these beautiful insects begin a long and difficult journey.The monarch butterfly is able to tell 2.the time of the day.Then it uses its eyes 3.to_measure (measure) the position of the ing (use) these two pieces of information, the monarch butterfly determines 5.which way to go and changes 6.its (it)direction accordingly.Eventually it manages to reach California or Mexico 7.where it will spend the winter.The solution 8.to the mystery of the monarch's 9.amazing (amaze) ability comes at a time when it is in serious trouble.In the last few years the monarch butterfly's population 10.has_crashed (crash) mainly because of human activity.Fortunately, many people are working hard to make sure monarch numbers increase once again.1 seek vt. & vi.寻找；探索；寻求①From this experience I have learnt that questioning can serve as a bridge that helps us to seek the truth.通过这次经历，我了解了质疑可以充当帮助我们寻求真理的桥梁。