(2019版)外研版高中英语必修第一册-Unit 5 Monarch’s journeyppt课件.pptx

1、Unit 5 into the wildUnit 5 into the wild do yoU know the names of these animals?do yoU know the names of these animals? monarch butterfly Siberian crane red panda Atlantic salmon killer whale African lion look and choose the animals that migrate. look and choose the animals that migrate. monarch but

2、terfly Siberian crane red panda Atlantic salmon killer whale African 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 monar

3、chs migrate from the United States and Canada south to California and Mexico for the winter. the monarch bUtterflythe monarch bUtterfly Choose 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 introd

4、ucing 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. T h e m a i n i d e a o f a passage can be found from its title, the topic sentenc

5、e, 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 t

6、he 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? NorthSouth How? The scientists have solve

7、d the mystery of how monarch butterflies manage to travel a long distance and find their way to the south. d a. 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 but

8、terfly reaches _ _. the time of day the way to go the position of the places where it a a the sun will spend the winter c c b b e. 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 _ _

9、 in the last few years. cut down natural environment of many places kill the plants has crashed (by as much as 90 per cent) h e e g g f f decrease increase What should people do? 1. Raise awareness of this creature 2. Plant native milkweed(马利筋草) spieces to feed on 3. Dont use chemicals that kill the

10、 plants 4. Protect the natural environment 5. Spread the word! The Monarchs Journey when/where /why how trouble solution a migration and the cause mystery population crash survival? 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

11、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 bank Of 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

12、 places _ they will spend winter. A team of scientists _ _ _ ( l e a d ) b y t h e u n i v e rs i t y o f Wa s h i n g t o n _(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). wonderful millions to travel where led has discovered and theallows to go