Unit 5 Monarch’sjourney ppt课件（2019）新外研版高中英语高一必修第一册.rar

unit 5 into the wilddo you know the names of these animals?monarch butterflySiberian crane red pandaAtlantic salmon killer whaleAfrican lionlook and choose the animals that migrate. monarch butterflySiberian crane red pandaAtlantic salmon killer whaleAfrican lion The monarch butterfly is one of the most recognizable and well studied butterflies on the planet. Its orange wings are laced with black lines and bordered with white dots. Famous for their seasonal migration, millions of monarchs migrate from the United States and Canada south to California and Mexico for the winter.the monarch butterflyChoose where you are most likely to find the passage. 1 In a scientific research paper about the monarch butterflys migration.2 In a popular nature magazine introducing the monarch butterfly.3 In a travel leaflet encouraging people to visit North America. What is the main idea of the passage? A. The monarchs migration. B. The reasons for monarchs migration. C. Mexicos monarch.The main idea of a passage can be found from its title, the topic sentence, or even the pictures.1. What is migration?Many animals move from one place to another at certain times of the year. This annual movement is called migration.2. Whats the purpose of migration?To find food, seek a partmer, or in search of warmer weather.Answer the following questions.Answer the following questions.3. What does monarch butterfly look like?Beautiful insects with fine black and orange wings.4. During the migration, where do they start and go to?From north America to California or Mexico.What mystery have the scientists solved?NorthSouthHow?The scientists have solved the mystery of how monarch butterflies manage to travel a long distance and find their way to the south. da. The monarch butterfly is able to tell_.b. Using these two pieces of information, the monarch butterfly determines _.c. The monarch butterfly measures _ _with its eyes.d. The monarch butterfly reaches _ _.the time of day the way to gothe position of the places where it a the sunwill spend the wintercbe. Humans _ trees.f. The _ where monarchs can be found is destroyed.g. Humans use chemicals that _ that monarch caterpillars eat.h. The monarch butterflys population _ _ in the last few years.cut downnatural environment of many placeskill the plantshas crashed (by as much as 90 per cent) hegfdecreaseincreaseWhat should people do?1. Raise awareness of this creature2. Plant native milkweed(马利筋草) spieces to feed on3. Dont use chemicals that kill the plants4. Protect the natural environment5. Spread the word!The Monarchs Journeywhen/where/whyhowtroublesolutiona migrationand the cause mysterypopulation crashsurvival?1.from one.to another 从一个到另一个2.manage to do 设法做成某事3.find ones way to 设法找到去的路4.the solution to. 的解决方法5.in trouble 处于困境中6.cut down 砍倒7.lead to 导致；造成(后果)；通向8.make sure 确保，确信；查明，弄清楚9.feed on 以为主食word bankOf all mass migrations, that of the North American monarch butterfly is one of the most _ (wonder). Every autumn _(million) of these beautiful insects manage _(travel) 4, 000 kilometres south and find ways to places _ they will spend winter. A team of scientists _(lead) by the university of Washington _(discover) that the monarch is able to tell the time of day _ uses eyes to measure the position of _ sun. The information _(allow) the butterfly to determine the way _(go).wonderfulmillionsto travelwhere ledhas discoveredandtheallowsto go