Unit 5 The power of plants Within a plant prep. 在（建筑或地区）里 1. Plants can’t speak, but they have amazing power! _____ can grow 91cm just in one day. That’s very fast! 2. A lot of our _____ comes form plants. 3. Plants can also keep us _____, just like doctors! We use different plants to make _____. Bamboo food healthy medicine What can plants do for us? 竹子 药品 Match the words with the parts of the plant. flower stem root leaf What can you see in the picture? Do you know the names of its parts? A plant. Stem(茎，梗，柄), root(根), and leaves(叶，叶子). stem root leaf(leaves) What can you see in the picture? What is the picture about? What does plant mean? 植物进行光合作用(photosynthesis) plant n. 植物; 发电厂;工厂 mesophyll cell 叶肉细胞 water carbon dioxide oxygen sugar sunlight Look at the picture of a plant and match the words to it. sugar leaf water sunlight n. 糖 n. 阳光 叶绿体 mesophyll cell 叶肉细胞 Read the passage and match the main idea with each paragraph. Paragraph 1 Paragraph 2 Paragraph 3 Paragraph 4 Paragraph 5 Plants produce substances(物质). How plants work. Introduce the Worker No. 55. The importance of plants. Workers in plants will have a rest. water carbon dioxide oxygen sugar sunlight 1. Can you find Worker No. 55 in the picture? 2. What is he going to do ? He is going to start work in the plant. Read Paragraph 1 and answewr 3.Are there any workers in the plants? No, there is no worker in the plant. 4.Why does the writer use “worker” in the passage? The writer uses personification(拟人手法) to make the passage more vivid（生动的） and easier for the readers to understand. Read Paragraph 1 and Think 2.What time is it? It’s quarter past seven.(7:15) Read Paragraph 2 and answewr 1. Where does No.55 worker work? 2. How many workers in each workshop? 3.What do they do? In workshop 1001 in the leaf. There are 20 to 100 workers. They collect sunlight and C???????? during the day. They send up water. They will mix water, C???????? ,and sunlight. ? Further thinking Worker is actually a chlorophyll (叶绿素) Workshop is actually a chloroplast (叶绿体) Read Paragraph 3 and answewr 2. Which product is important for animals and humans? Why? Oxygen is important for animals and humans. Because they need it to breathe. 1.What do the “workers in the Leaf” do? A. Send up water B. Produce sugar and oxygen C. Take a rest at noon D. Work in the Root Read Paragraph 4 and answer Why will workers take a rest in dark? Because there isn’t sunlight during the night, so the workers stop working. Light affects(影响) photosynthesis(光合作用). A. A worker’s daily work in a factory B. The parts of a plant and their jobs C. How to count workers in a workshop D. Why animals need oxygen Choose another suitable title and give your reasons. What does “plant” mean in the title? plant n. 工厂 The word “plant” has two meanings. One is about the living thing. The other is about the place the workers work in. plant n. 植物 A pun (双关语) is a wo ... ...
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