新外研社版高中英语选择性必修一Unit5Revealing nature-Developing Ideas教学设计

新外研社版高中英语选择性必修一 Unit5 Revealing nature Developing Ideas教学设计 教学目标： By the end of this period,students will be able to: 1.Understand the text,master the key vocabulary related to the topic and describe the communication modes between natural plants; 2.Analyse an event in different ways and find out the positive and negative effects of it; 3.Use the words and expressions to help you show your opinions. 教学重难点： 1. Organise information from the text. 2. Present collected information, and retell the passage with the help of the mind map. 教学方法： P- W-P教学法，Task-based teaching method 教学资源： 教材、多媒体课件、学案、黑板和粉笔。 教学设计： Step Ⅰ　Lead-in Look at the pictures and tick what plants can do. Suggested answers:Students’ own answers. Step Ⅱ　While -reading Activity 1　Skim for information Read the passage and answer the questions. 1.What’s the genre of the passage? A.Exposition.　 B.Argumentation.　 C.Narration. 2.Read the passage and find out the ways in which plants communicate. Suggested answers: 1.A 2.They may communicate with each other by using chemicals,sound and “wood wide web”. Activity 2　Read for detailed information Organise information from the passage and complete the diagram. Suggested answers: 1.communicate with each other　2.from the leaves　3.release its own,different chemicals　4.with their roots　5.tell if a neighbouring plant is helpful,or unfriendly 6.clicking noises when there is not enough water,indicating drought is arriving　7.the roots of different plants to each other　8.share information and even food　9.steal food from each other,or spread poisons Step Ⅲ　Post-reading Think and share Go through the four questions and think about them individually,then discuss the questions in groups. Questions: 1.What figure of speech is being used when the plants are described as calling for help? What is its function? 2.What does “wood wide web” mean? 3.What do you think are the benefits of studying plant communication? 4.What discoveries are described in the two reading passages in this