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课件网) Understanding ideas What can you know about the plants from the video The plants also have lives(生命). Plants, just like humans, also have body parts. muscle 肌肉 [ m s( )l] fat 脂肪 bones 骨骼 [b n] organ 器官 [ ɡ n] What are these parts root 根 [ru t] stem 茎 [stem] leaf 叶 1 Look at the picture of a plant and match the words to it. sugar sunlight leaf water sunlight sugar water leaf / kɑ:b n da ksa d/ [ ks d n] [ f t s nθ s s ] 光合作用 光能 / kɑ:b n da ksa d/ 二氧化碳 ['m n r lz] 矿物质 糖 水 光合作用，通常是指绿色植物（包括藻类）吸收光能，把二氧化碳和水合成富能有机物，同时释放氧气的过程。 光合作用组成 其主要包括光反应、暗反应两个阶段，涉及光吸收、电子传递、光合磷酸化、碳同化等重要反应步骤，对实现自然界的能量转换、维持大气的碳-氧平衡具有重要意义。 2 Read the passage. 1 It's quarter past seven. Here's Worker No. 55 in his green uniform. He's going to start work in the plant. 2 He works in Workshop 1001 in the Leaf. There are 20 to 100 workers in each workshop. They collect sunlight and CO2, during the day. Now workers from the Root send up water. The water will rise up to the Leaf through the Stem. Then workers in the Leaf will mix water, CO2, and sunlight. 3 What are they going to produce Most importantly (for them), there will be sugar! It's useful for the growth of the plant. Another product will be oxygen, but the plant doesn't need much of it. It means a lot to animals and humans, though - they need it to breathe! 4 The workers work hard. Soon it's going to get dark. They will take a rest. 5 There are millions of plants on earth. They give more than food and oxygen. Without plants, the natural world would be very different! 3 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 1. how to do sth. 怎么做某事 2. go to sp. 去某地 Think and share 1. What does “plant” mean in the title In the title, “plant” has two meanings. One is about a living thing like a tree or flower. The other refers to a “factory” where “workers” make food for the plant and oxygen for us. 2. In what other ways do plants help the world For climate: reduce the effect of climate change... For animals: provide food and homes for animals... For people: provide food, clean the air and help stop the floods... 教学提示：双关 双关（pun）是一种语言现象，指用一个词或一句话，创造出多重理解，增添语言的趣味性和表达的丰富性，使语言更富有感染力。英语中最常见的双关是同音双关和多义双关。 （1）同音双关：利用读音相同或相近但意义不同的词语表达不同语意。（2）多义双关：利用一个词的多重含义表达不同语意。例如：Broken pencils are pointless.(pointless有“无用的”和“没有尖头的”双重含义) Match the main idea with each paragraph. Paragraph 1 Paragraph 2 Paragraph 3 Paragraph 4 Paragraph 5 A. Plants produce substances(物质). B. How plants work. C. Introduce the Worker No. 55. D. The importance of plants. E. Workers in plants wil ... ...
