2021版外研版必修一英语Unit5 Understanding ideas(同课异构） ppt课件.pptx

1、Unit 5 Into the Wild P50 Understanding ideas Before reading 1. Which animals migrate? 2. What do you know about animal migration? a. monarch butterfly b. Siberian crane c. Atlantic salmon d. red panda e. killer whale f. African lion While reading Task 1: Read the passage quickly and choose the sourc

2、e. Where do you most likely to find the passage? a. In a scientific research paper about the monarch butterflys. b. In a popular nature magazine introducing knowledge of the monarch butterfly. c. In a travel leaflet encouraging people to visit North America. The Monarch s Journey The purpose of the

3、migration of animals They 1._ to find food, a partner or search of warmer weather. The monarchs difficult journey Every autumn, they begin a long and difficult journey, and manage to travel around 4,000 kilometres 2._ to find their way to places 3._ they will spend the winter. The way the monarch mi

4、grates The monarch is able to tell the time of day, and use its eyes 4._ the position of the sun. So, it can 5._ which way it needs to go and change its 6._ when necessary. migrate south where to measure determine direction Task 2: Read the passage carefully and fill in the blanks. The reason why th

5、erere fewer monarchs People are destroying the natural environment by 7._ trees and using 8._ that kill the plants that monarch caterpillars eat. How to protect the monarch Volunteers have been working together to record their migration and make sure that there are enough plants for them to 9._. The

6、 more we know about these delicate creatures, 10._ the chance they will survive. cutting down chemicals feed on the greater structure analysis & retelling After reading Task 1: Analyze the structure of the passage. Choose the correct structure. A. B. C. D. Task 2: Try to retell the passage according

7、 to the hints. The monarchs life Human activities EFFECTS cut down trees use chemicals The research What findings? What kind of life? goodgood badbad P3P3 P1&2P1&2 P4P4 P5P5 1. What impresses you most about the monarch butterfly? 2. What can people do to help protect the monarch butterfly? We human

8、beings are the visitors to the world of the wildlife. If we dont stop any direct or indirect activity that destroys their land, we will reap what we have sown in the near future. 1. Can you describe how monarch butterflies migrate every autumn? 2. Can you describe the research on the butterfly? 3. D

9、o you know how to get along with wild animals now? 1. Review the key points in the passage and fill in the blanks. 2. Preview the passage on page 56 and finish Activity 1, 2, 3 &4. Many animals move from one place to another at certain times of the year. They migrate (find) food, seek a partner, or

10、in search of warmer weather. One of the most wonderful migrations in nature is . of the North American monarch butterfly. Every autumn, (million) of these beautiful insects with fine black and orange wings begin a long and difficult journey. However, until recently no one knew . they did this. A tea

11、m of scientists (lead) by Professor Eli Shlizerman at the University of Washington has found that the monarch is able to tell the time of day by .(use) its eyes to measure the position of the sun, so that the monarch manages to reach the places it will spend the winter. The solution the mystery of t

12、he monarchs amazing ability comes at a time when it is in serious trouble. Its population (crash) by as much as 90 percent in the last few years because of human activity. The research on the monarchs behavior has however led to greater awareness of this creature. People have been working together to record its migration and make sure that there are enough plants for it to feed on. to find that millions how led using where to has crashed a