(
课件网) Unit 5 The Power of Plants Understanding ideas (1) 英语外研版七年级上册 通过本课时学习，学生能够： 1.读懂介绍植物光合作用的文章，从中提取关键信息，梳理植物工厂 的工作流程； 2.根据流程图准确复述植物是如何进行光合作用的； 3.认识到植物对人类生活的重要性，联系生活实际讨论如何保护植物， 树立起保护自然，人与自然和谐相处的价值观。 Learning objectives 重点 重点 Review and answer How do plants make babies By making seeds. By growing a new part to become a new plant. Free talk How do small seeds grow into big trees Who helps them What do plants need to grow Plants cannot move, but they need food to grow. Look and learn Can you guess the meaning of PHOTOSYNTHESIS 光合作用 How do plants make food Look and learn The leaves collect sunlight and CO2 for the plant. The roots of the plant takes water from the soil and sends it to the leaves through stems. v.收集 n. 阳光 n.根 n. 茎 n.树叶 Look and learn The leaves are the food factory of the plant. They can mix water, sunlight and CO2 together to produce products like sugar and oxygen. v.(使)混合 produce v. 生产 product v. 生成物 n.糖 n. 氧气 How do plants make food Look and match Look at the picture of a plant and match the words to it. sugar leaf sunlight water sunlight sugar water leaf Look and predict Can you predict what the text is about based on the title and the picture sunlight sugar water leaf Read and choose 1. Choose another suitable title and give your reasons. A. How to make sugar. B. How plants work. C. Why plants are great. D. Going to the green workshop. 2. What type of writing is this passage A. Narration (记叙文). B. Argumentation (议论文). C. Practical Writing (应用文). D. Exposition (说明文). Scan the passage and answer the two questions. Read the passage and match the main idea with each paragraph. Para. 1 Para. 2 Para. 3 Para. 4 Para. 5 Plants produce products. How plants work. Introduce the Worker No. 55. The importance of plants. Workers in plants will have a rest. Read and match What is the structure of this passage A B C ① ② ③ ④ ⑤ ① ② ③ ④ ⑤ ① ② ③ ④ ⑤ Read and choose 1. Can you find Worker No. 55 in the picture 2. When does Worker No. 55 start work At 7:15. 3. What is he going to do He is going to start work in the plant. Read Para. 1 and answer the questions. Read and answer Read Paras. 2-4 carefully, and then fill in the blanks. Read and fill Sunlight and CO2 come into the 1._____. 3._____ , CO2 and sunlight will turn into 4._____and oxygen. Oxygen is important to humans — they need it to 5._____. Water from the root will 2._____to the leaf through the stem. leaf Water rise up sugar breathe Read and think 1. Are there any real workers in the plant What do the workers mean to a plant in real life No. The workers mean Chlorophyll (叶绿素). 2.Why does the writer use “workers” in the passage Here the writer uses personification (拟人) to make the passage more vivid and easier for the readers to understand. Li ... ...
