Unit 5 Into the wild Understanding ideas课件-【上好课】2024-2025学年高一英语同步精品课堂（外研版2019必修第一册）

Unit 5 Into the wild Understanding ideas 外研版2019必修第一册 目 录 Lead-in While-reading Pre-reading Post-reading Learning objectives: At the end of this lesson, students are able to: 1. Students can grasp the new words and expressions such as charity，annual，measure，in search of and so on. 2. Students can grasp the general idea for the whole passage. 3. Students will be able to use different basic reading strategies like prediction/skimming/scanning correctly in their reading process. 4.Students can develop a habit of protecting the environment and animals. Lead-in: What are the relationships between the people and the animals? blind people and guide dog (life assistant) B. pet owner and pet C. horseman and horse (competition companion) D. owner and livestock B A C D Lead-in: Can you use one or two words to describe their action? Animal migration. · Animal migration refers to the movement of a species from one habitat to another in response to seasonal changes to the environment. · Often covering great distances and involving huge numbers of animals. · Migration happens in all parts of the animal kingdom, from fish and insects to birds, reptitles and mammals. Pre-reading: Look at the pictures and choose the animals that migrate. b a c d e f monarch butterfly Siberian crane Atlantic salmon red panda killer whale African lion 黑脉金斑蝶 西伯利亚鹤 大西洋鲑鱼 红熊猫 虎鲸 非洲狮 Pre-reading: Now talk about what you know about animal migration. a monarch butterfly (黑脉金斑蝶) The monarch butterfly is a kind of beautiful insect with fine black and orange wings. The monarch usually has a lifespan of 6 weeks, and its hometown is mainly in America. Animals that migrate Time of animal migration Reasons for animal migration Influences of human activities on animal migration … While-reading: What is the main idea of the passage? A. The monarch's migration. B. The reasons for monarch's migration. C. Mexico's monarch. The main idea of a passage can be found from its title, the topic sentences, or even the pictures. While-reading: Read for the main idea of each paragraph and the passage structure. Para. 1 Para. 3 Para. 4 Para. 2 Para. 5 a. Measures to protect the monarch b. Definition of animal migration c. Reasons for the monarch’s trouble d. Details about the monarch’s migration e. Ways that the monarch migrates Part I The migration of monarch butterfly Part II The influence of human’s activities on monarchs While-reading: Find out what mystery the scientists have solved. The scientists have solved the mystery of how monarch butterflies manage to travel a long distance and find their way to their destination. While-reading: Where are you most likely to find the passage? A. In a scientific research paper about the monarch butterfly’s migration. B. In a popular nature magazine introducing the monarch butterfly. C. In a travel leaflet encouraging people to visit North America. While-reading: Why do animals make a migration? What does that refer to? Many animals move from one place to another at certain times of the year. This annual movement is called migration. They migrate to find food, seek a partner, or in search of warmer weather. One of the most wonderful migrations in nature is that of the North American monarch butterfly. 1 2 Para. 1 While-reading: About the journey: When? How? How long? Route? Every autumn, millions of these beautiful insects with fine black and orange wings begin a long and difficult journey. Somehow they manage to travel around 4,000 kilometres south and find their way to California or Mexico. However, until recently no one knew how they did this. Para. 2 While-reading: Complete the sentences with expressions from the passage. 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 butterfly reaches ________________________________. the time of day the way to go the position of the sun the places where it will spend the winter d a c b Para. 3 While-reading: Complete the sentences with expressions from the passage. e. Humans _________ trees. f. The ________________________________ where monarchs can be found is destroyed. g. Humans use chemicals that _____________ that monarch caterpillars eat. h. The monarch butterfly’s population ________________________ 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 g f Para. 4 While-reading: Other factors that destroy the monarchs’ habitat. factors deforestation high quantity of exhaust gases urbanization forest fire overpopulation food shortage While-reading: 1.What measures are taken to protect monarch butterflies? 2. Why do people make the research? Is it useful? Para. 5 The research on the monarch’s behaviour has however led to a 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. If this works, there may come a time when the number of monarch butterflies increases once again. The more we know about this lovely creature, the greater the chance it will survive and keep its place in the natural world for a long time to come. 2 1 While-reading: Fill in the blanks with the information from the passage. While-reading: Fill in the blanks with the information from the passage. in search of wonderful autumn measuring While-reading: Fill in the blanks with the information from the passage. While-reading: Now talk about what you know about animal migration. decreasing /reducing /falling natural environment awareness record feed on Learn to understand the passage. The background to the monarch's migration The mystery of the monarch's migration Influences of human activities Its solution The Monarch's Journey It is able to 1. ____________________. It uses its eyes to 2. ___________________________. These two pieces of information allow the butterfly to 3. ______________________. It manages to reach the places 4. _________________________. Its population 5. ___________________________ in the last few years. The natural environment where the butterfly can be found 6. __________. People 7. _____________. People 8. ____________ that kill the plants that monarch caterpillars eat. tell the time of the day measure the position of the sun determine the way to go where it will spend the winter has crashed by as much as 90% is destroyed cut down trees use chemicals Time Where How Trouble Every ________. Travel around 4,000 km south to ____________________. Use ____ to measure the ________________ and ________________________________. ____________________________________________________________________. Main reason: _____________ such as ________________ and ______________. Solution: Make sure that there are ____________ for it to feed on. The Monarch's Journey autumn California or Mexico eyes the time of the day the point where the sun is in the sky Its population has crashed by as much as 90 per cent. human activity cutting down trees using chemicals enough plants Post-reading: What can people do to help protect the monarch butterfly? Think Share Thank You ! Understanding ideas 外研版2019必修第一册 $$