Unit 5 Understanding ideas 课件 2025-2026学年外研版（2024）七年级英语上册

The power of plants 5 Unit Understanding ideas In this class, we will describe plants using the vocabulary and expressions in this part. understand the importance of plants in the natural world. read a passage to learn how plants work. What is the video about? It is about the things that help a seed grow into a plant and then into a flower. Let's come to the passage and learn more about it. What can you see in the picture? A plant. Do you know the names of its parts? leaf stem root What can you see in the picture? 1. Where is it? It's like a factory. It is in a workshop in the leaf. 2. Who are in the workshop? Workers in green uniforms. 3. What are the workers going to produce? How are they going to produce it? sugar sunlight water sunlight sugar water Look at the picture and try to match the words to it. 1 P80 Now, let's read to check your answers. Within a plant 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. 植物工厂里 现在是七点十五分。 穿着绿色制服的 将要开始工作 他在叶部的 1001 车间工作。 在白天 往上送水 水会通过茎部上升到叶部。 将水、二氧化碳和阳光混合在一起 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! 最重要的 糖能帮助植物生长。 植物本身不需要太多氧气 意义重大 辛勤工作 天黑了 休息 数百万种植物 超过,不仅 自然界 Within a plant Task 1 Skim the passage and answer. Where can we read this passage? A. In a newspaper. B. In a diary. C. In a science magazine. D. In an advertisement. Read carefully and do the following tasks. Read para. 1 and answer the questions. Task 2 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 interesting and easier for the readers to understand. Read para. 2 and fill in the blanks. The workers in the Leaf _ _ and CO₂ during the day. Now workers from the Root _. The water will _ to the Leaf through the Stem. Then workers in the Leaf will _ water, CO₂ and sunlight. collect send up water rise up mix water sunlight sunlight How do the workers carry out their work? Read para. 3 and fill in the blanks. water sunlight What are they going to produce? sugar It's _ for the growth of the _. oxygen It _ a lot to animals and humans, though – they need it to _! useful plant means breathe sunlight sugar water Complete the texts with the words and expressions from the passage. Sunlight and CO2 come into the _. Water from the root will _ to the leaf through the stem. _, CO2 and sunlight will turn into _ and oxygen. Oxygen is important to humans -they need it to _. leaf rise up Water sugar breathe Photosynthesis P82 Read para. 4 and answer the question. When will the workers take a rest? They will take a rest at night. Read para. 5 and answer the question. What does the writer think of plants? Plants _ a lot and help a lot. They give _ food and oxygen to people. They are _ to animals and people. mean more than important a How to make sugar b How plants work c Why plants are great d Going to the green workshop The passage shows how plants make sugar and oxygen and how different parts of the plant help in this process (过程). And this title best describes the main idea of the passage. Choose another suitable title and give your reasons. 3 P82 Task 3 Compare the two titles. There are some workers in a plant. What do they do in the plant? They works in the plant. “Plant” here means the place the workers work in. Task 4 “Plant” in this title means the living thing. Pun The word “plant” has two meanings. A pun is a word with more than one meaning. It's a clever way to make the passage more interesting. Pay attention to the expressions. 现在是七点一刻。 穿着绿色制服的 在白天 上升到…… 对……有用 对……意义重大 努力工作 变暗,变黑 = have a rest 休息一下 数百万 地球上 超过,不仅 自然界 把……送上去;使上升;发射 混合……和…… 9. 休息一下 10. 自然界 11. 对……有用 12. 对……意义重大 13. 穿着绿色制服的 14. 现在是七点一刻。 15. 混合……和…… Translate the following expressions into English. 5. 在白天 6. 超过,不仅 7. 变暗,变黑 8. 努力工作 1. 送上去 2. 地球上 3. 数百万 4. 上升到…… Task 5 send up on earth millions of rise up to during the day more than get dark work hard take a rest the natural world be useful for mean a lot to... in the green uniform It's quarter past seven. mix ... and ... water sunlight Retell how plants work based on the picture and information. rise up to the leaf through the stem Photosynthesis Task 6 sugar enter the leaf enter the leaf mix ... and ... turn into important to humans, breath Plants clean the air. Plants help stop floods. They provide homes for animals. They also reduce the effect of climate change. ... In what other ways do plants help the world? Task 7 P82 1. Within a plant 在植物(工厂)内部 within 句中用作介词,意为"在(建筑或地区 )里"。 ① The noise comes from within the building. ② There is a new footpaths(人行小道) within the park. 吵闹声是从楼房里传出来的。 公园里有一条新的人行小道。 within 作介词时,还有"在(某段时间)之内"和"在(某段距离)之间"之意。 ① I am coming within 20 minutes. ② Her home is within a short walk from the school. 我将在20分钟内到达。 她的家离学校很近,可以走路到达。 2. It's quarter past seven. 现在是七点一刻。 quarter 意为"一刻钟,十五分钟"。 Please wait for a quarter. 请等十五分钟。 quarter 意为"四分之一"。 I ate a quarter of the pizza for lunch. 我午餐吃了四分之一的披萨。 英语钟点时刻的表达方式: ① 时钟+分钟 seven fifteen ②分钟+past/to+ 时钟 a. 当分钟小于或等于30时,用"分钟+past+时钟"表示"几点过几分"; 七点半 七点十五 七点四十五 seven thirty seven forty-five b. 当分钟大于30时,用"到下个时钟差的分钟数+to+下个时钟"表示"差几分到几点"。 twenty past eight 八点二十 half past six 六点半 a quarter to five 四点四十五(差十五分五点) six o'clock ③ 整点可用"基数词+o'clock"表示。 六点钟 3. Now workers from the Root send up water. send send up send sb. sth. / send sth. to sb. send for 作动词,意为“送出,发出” ① China sent up the first man-made satellite in 1970. ② Kangkang sent a card to me on my birthday. ③ She is in a bad situation. We must send for a doctor. 中国于1970年发射了第一颗人造卫星。 生日那天康康寄给我一张卡片。 现在根部的工人往上送水。 她情况很不好。我们必须派人去请医生。 把……送上去;使上升;发射 邮寄;发送 派人去请 4. The water will rise up to the Leaf through the Stem. through 句中用作介词,意为"通过"。 ① Water will be pumped (用泵抽送) through a pipe. ② Oxygen is released (释放) into the air through the stomata (气孔) of the leaves. 水将通过水管抽出。 氧气通过叶子的气孔释放到空气中。 水会通过茎上升到叶片上。 5. It means a lot to animals and humans, though -they need it to breathe! 不过,它(氧气)对动物和人类来说意义重大— 他们需要它来呼吸! mean a lot to 对……来说很重要,对……意义重大 ① Family means a lot to me. ② Her support during tough times means a lot to me. 家人对我来说很重要。 在困难时期,她的支持对我来说意义重大。 (2)though 句中用作副词,意为"可是,不过,然而"。用于为前面的句子增加对比或转折性的信息,常常被用在句子末尾。 ① It sounds like a lot of fun. Isn't it very difficult though? ② I didn't get the job. I learnt a lot, though. 听上去很有趣,可是这不是很难吗? 我没有得到这个工作,但是我学到了很多。 though作连词,意为“尽管”,引导让步状语,不能和but 同时使用。 Though it was cold, he went out without a coat. 虽然天气很冷,但他没有穿外套就出去了。 1. 虽然她年轻,但知道很多。 _ 2. 他答应要来,不过还没到。 _ 翻译句子。 Though she is young, she knows a lot. He promised to come, he hasn’t arrived, though. 6. They will take a rest. 他们将要休息了。 take a rest 休息 ① I'm going upstairs to take a rest. ② Let's take a rest. 我要上楼去休息了。 咱们休息一下吧。 rest作名词,还可意为“剩余部分;其余”。 Don’t give up, or you will regret it for the rest of your life. 不要放弃,否则你余生都会后悔。 7. They give more than food and oxygen. 它们提供的不仅是食物和氧气。 more than 不仅,超过 ① She is more than a friend to me. She is family. ② He knows more than he told us. 对我来说,她不仅仅是朋友,还是家人。 他没把他知道的事全告诉我们。 句中more than用来强调植物对自然界的重要性。 When finishing, exchange your papers to grade each other. (Score one point for each correct answer.) Name Score Now 4 minutes to test your spelling. 1. English-Chinese within quarter though 2. Chinese-English 数百万 在白天 超过,不仅 对……意义重大 现在是七点一刻。 混合……和…… 休息一下 自然界 I. 从方框中选择适当的单词并用其正确形式完成句子。 1. Bob _ up in a small village. 2. Because of the heavy rain, the river is _. 3. To keep healthy, we should stop eating junk food and eat _ food more. 4. Some animals died out because of the _ change and human activities. 5. When Edward _ the meeting room, everyone turned to look at him. enter, grow, nature, climate, rise grew rising natural climate entered . 根据汉语提示完成句子,每空一词。 1. 现在是九点一刻。 It’s _ _ _. 2. 这本书对学习英语有用。 The book is _ _ learning English. 3. 每年有数以百万计的游客游览长城。 _ _ tourists visit the Great Wall every year. 4. 孔子不仅仅是一位教育家,他还是一位伟大的思想家。 Confucius is _ _ an educator. He is also a great thinker. 5. 如果我们把蓝色和黄色混合,会生成什么颜色? What colour will we get if we _ blue _ yellow? quarter past nine useful for Millions of more than mix and 1. Can you tell how plants work? 2. Can you tell in what ways plants help the world? 3. Do you remember the words and expressions we learnt this lesson? 1. Read the passage until you can read fluently. 2. Remember the words and expressions we learnt this lesson. 3. Share what plants can do for us with your classmates. 2024 Other 100992.0 $