(
课件网) （外研版）七年级 上 Understanding ideas The power of plants Unit 5 After this class, we will be able to: 1. describe plants using the vocabulary and expressions in this part. 2. read a passage to learn how plants work. 3. understand the importance of plants in the natural world. Learning objectives 1. What’s the video mainly about 2. What parts do plants have The parts of plants. Root(根)and shoot(枝) (stem(茎), leaves, flowers and fruits.) Warming-up sugar sunlight water What can you see in the picture A plant. Do you know the names of its parts leaf stem root Pre-reading /stem/ /ru t/ sugar sunlight water sunlight sugar water Look at the picture and try to match the words to it. 1 Pre-reading sunlight sugar water Now, let's read to check your answers. Pre-reading What’s the picture about The picture is about photosynthesis. (光合作用) It happens within a plant. / f t s nθ s s/ Where can we read this passage A. In a newspaper. B. In a diary. C. In a science magazine. While-reading Task 1 Read and choose. While-reading Task 2 Read and match. A The products are sugar and oxygen. C The process of the work in the Leaf. D Plants are important. B The day gets dark. Workers will take a rest. E Worker No.55 is going to start work. E C A B D Task 3 Read para. 1 and answer. 1. When do workers start work in the plant At a quarter past seven. 2. Are there any real workers in the plant No, there aren’t. 3. Why does the writer use “workers” in the passage To make the passage more vivid(生动的) and easier for the readers to understand. 拟人(personification)是一种常见的写作手法，是将人类的特征、情感或行为等赋予非人类(如动物、物体、概念、自然现象等)。拟人能够使文章更加生动形象、主题突出，从而能引起读者更强的共鸣和更深的思考。 While-reading Read para2-3 and complete. leaf rise up Water sugar breathe Photosynthesis 光合作用 While-reading Task 4 Read para. 4 and answer. When will the workers take a rest They will take a rest at night. At night, they only perform respiration(呼吸作用). While-reading / resp re n/ Task 5 Read para. 5 and answer. What does the writer think of plants They give _____ food and oxygen to people. They are _____ to animals and people. more than important While-reading √ Post-reading Choose another suitable title and give your reasons. 3 / su t bl/ 合适的 Tip: Pay attetion to the picture and key words. Post-reading Do they have the same meaning What does “plant” mean in the title The word “plant” has two meanings. The left one is about the place the workers work in. The right one is about the living thing. Think and share. In what other ways do plants help the world Think and share. Plants clean the air and help stop floods. They provide homes for animals and reduce the effect of climate change. Post-reading Write a short paragraph about how plants work and how they help people and animals. Homework ... ...
