Unit 5 单词教学 课件 2025-2026学年外研版英语七年级下册

Unit 5 Words: Explore Nature & Science 外研版七年级下册 单词精讲与中考链接 01. 情景导入:走进Unit5的世界 02. 单词精讲:自然景观篇 03. 单词精讲:人物情感与行为篇 04. 单词精讲:科学与概念篇 05. 中考链接:高频考点解析 06. 互动练习:知识巩固与应用 07. 课堂总结:回顾与展望 1.7.2013 Hello everyone! Welcome to our English class. Today, we are going to explore a wonderful new world through the words of Unit 5. Get ready to dive into the beauty of nature, the mysteries of science, and expand your vocabulary for the future. Let's start our journey! ‹#› 情景导入:走进Unit5的世界 Imagine standing on a high plateau, feeling the soft wind in your hair, and looking up at the bright sky. What words would you use to describe this beautiful scene? Let's explore Unit 5 to find out! 1.7.2013 Before we start learning the words, let's imagine a scene. Picture yourself on a vast plateau, with the wind gently blowing and the sky so clear and bright. How would you describe this feeling? The words we are about to learn will help you paint this picture with language. Let's begin our exploration! ‹#› 单词精讲:自然景观篇 (1) plateau/'pl t / n. 高原 The Tibetan Plateau is very famous in the world. cloud/kla d/ n. 云 There are many white clouds in the sky. 拓展:cloudy多云的 land /l nd/ n. 陆地 Most animals live on land. 拓展:on land 在陆地上 glacier /' l si / n. 冰川 The glacier moves very slowly. 1.7.2013 Now, let's start with the first group of words, all about natural landscapes. First, 'plateau' - a high, flat land like the Tibetan Plateau. 'Most' is used to form the superlative, meaning the highest degree. 'Soft' describes something that is easy to press, like the grass. And 'cloud' is what we see floating in the sky. Let's read these words and their examples together. ‹#› 单词精讲:自然景观与环境 (1) grassland/'gr sl nd/ n. 草原 Sheep are grazing on the grassland. field/fi ld/ n. 田地,田野 Farmers are working in the field. sky/ska / n. 天空 The sky is blue and clear. tide/ta d/ n. 海潮,潮汐 The tide is coming in. 1.7.2013 Moving on, we have 'brightly', an adverb to describe how the sun shines. 'Sky' is the space above us. 'Calm' can describe a quiet sea or a person's peaceful mood. And 'above' is a preposition showing position, like the moon above the mountain. Let's practice using these words in sentences. ‹#› 单词精讲:自然景观与环境 (2) calm /k m/ adj. 镇静的,沉着的 The lake is calm and reflects the sky. 拓展:calm down冷静 flow /fl / v. 流,流动 The river flows gently through the valley. soft/s ft/ adj. 柔软的 The grass is soft under our feet. brightly/'bra tl / adv. 明亮地 The sun is shining brightly today. 1.7.2013 Next, we learn 'express', which means to show your feelings or thoughts. 'Grassland' is a large area covered with grass, where sheep might graze. A 'field' is an area of land used for farming. 'Few' means a small number, like few people living in a faraway place. These words help us describe different aspects of the natural world and our interactions with it. ‹#› 单词精讲:人类行为与情感 (1) express / k'spres/ v. 表达;表示 例: He expressed his love through art. describe /d 'skra b/ v. 描述,描写 例: Can you describe the picture? diary /'da ri/ n. 日记,日志 例: She keeps a diary every day. present /'preznt/ n. 礼物,赠品 例: He gave me a present for my birthday. 1.7.2013 Now we shift our focus to words about people's feelings and actions. A 'present' is a gift you give to someone. 'Better' is the comparative form of 'good', meaning more desirable. 'Proud' describes the feeling of satisfaction you get from something you've done or someone you know. And a 'diary' is a book where you write down your personal thoughts and experiences every day. ‹#› 单词精讲:人类行为与情感 (2) proud/pra d/ adj. 自豪的,得意的 例句: He is proud of his own achievement and gives a thumbs-up. better/'bet / adj. 更好的,较好的 例句: The student is better at answering questions now and raises his hand confidently. most/m st/ adj. 最 例句: This film won the most prestigious award, just like this shining trophy. few/fju / adj. 很少,不多 例句: There is very few money left in his wallet. 1.7.2013 Let's continue. 'Proud' means feeling deep pleasure or satisfaction as a result of one's own achievements. 'Better' is used to show an improvement or higher quality. 'Most' is the superlative form of 'many' or 'much', indicating the greatest in amount or degree. 'Few' means a small number of something. These words are useful for expressing personal feelings and for comparing or evaluating things. ‹#› 单词精讲:科学探索与发现 (1) lungfish /'l f / n. 肺鱼 例: Lungfish can live out of water for a long time. lung /l / n. 肺 例: We need healthy lungs to breathe. scientist /'sa nt st/ n. 科学家 例: My dream is to be a scientist. develop /d 'vel p/ v. (使)成长,(使)发展 例: Children develop very quickly. 1.7.2013 Here are some interesting words related to science and biology. A 'lungfish' is a special kind of fish with lungs. 'Lungs' are the organs we use to breathe. A 'scientist' is someone who does scientific research. And 'develop' means to grow or change over time. These words connect our study of language to the fascinating world of science. These words focus on biological science, especially the study of lungfish and life development. ‹#› 单词精讲:科学探索与发现 (3) surface /'s f s/ n. 表面,面 The surface of the lake is smooth. level /'levl/ n. 水平高度;相对高度 The water level is rising. salty /'s lti/ adj. 咸的,含盐的 The soup is too salty. wood /w d/ n. 木头,木材 The table is made of wood. 1.7.2013 Let's look at more scientific terms. 'Lie' means to be in a horizontal position. The 'surface' is the outer part or top layer of something, like the surface of a lake. 'Flow' describes the movement of liquids or gases, like a river flowing. 'Level' refers to a position on a scale, especially height, like the water level in a cup. These words help us describe physical states and movements. ‹#› 单词精讲:科学探索与发现 (2) die /da / v. 消失,不复存在 The dinosaurs died out millions of years ago. 恐龙在几百万年前就灭绝了。 拓展:die off/out 灭绝 disappear / d s 'p / v. 消失,不见 The sun disappeared behind the clouds. 太阳消失在云层后面。 climate /'kla m t/ n. 气候 Climates shape the world’s ecosystems. 1.7.2013 Now we're in the scientific concepts section. 'Land' is the part of the Earth's surface that is not covered by water. 'Aloud' means to speak so that people can hear you. 'Die' can mean to stop living, or for something to disappear, like the dinosaurs. 'Salty' describes something that has a taste of salt, like seawater. These words are fundamental to understanding our planet and basic scientific ideas. ‹#› 单词精讲:语言与逻辑 (1) if / f/ conj. 假若,要是,如果 If you choose the left path, you may see different scenery. however /ha 'ev / adv. 然而,不过,但是 例: The road was smooth, however a big stone blocked the way. only /' nli/ adj. 唯一的,仅有的 例: This is the only key that can open the treasure box. less /les/ det. 不那么多,更(较)少 例: This glass has less water than the one next to it. 1.7.2013 Next, we have 'less', the comparative form of 'little', meaning a smaller amount. 'Suggest' means to make something seem likely, often without saying it directly. 'Such as' is a useful phrase for giving examples. And a 'snake' is a long, thin reptile. These words cover comparisons, indirect communication, examples, and specific animals. ‹#› 单词精讲:语言与逻辑 (2) such as/s t z/ 像,诸如,例如 The fruit bowl has many kinds of fruits, such as apples, bananas, and oranges. suggest/s 'd est/ v. 暗示,暗指 His mysterious smile suggested that he knew the secret. aloud/ 'la d/ adv. 出声地 The student stood up and read the story aloud in class. lie/la / v. 躺,平卧 She likes to lie on the green grass and enjoy the sunshine. 1.7.2013 These words are used to give examples, express indirectly, and describe simple actions or states. ‹#› 中考链接:高频考点解析 (1) 考点1:形容词比较级和最高级 比较级用于两者比较,最高级用于三者及以上。重点掌握 "the + 比较级, the + 比较级" 结构。 Q: The more you read, the _ you will understand. A. well B. better C. best 考点2:词性转换技巧 掌握常见后缀:-ment (名词后缀,如 develop -> development);-ist (表人,如 science -> scientist)。 Q: Yuan Longping is a famous _ (science). 实战演练:综合应用 01. 语法填空 The _ (hard) you work, the more progress you will make. 02. 词汇运用 With the _ (develop) of technology, our life is getting better. 03. 单选选择 He is one of _ (famous) writers in China. 1.7.2013 Now, let's connect what we've learned to the high school entrance examination. First, the comparative and superlative forms of adjectives, like 'better' and 'less'. This is a classic exam point. Remember, 'the + 比较级, the + 比较级' means 'the more..., the more...'. Second, word formation. We can change verbs like 'develop' into nouns like 'development' by adding '-ment', and nouns like 'science' into 'scientist' by adding '-ist'. These are very common in fill-in-the-blank questions. ‹#› 中考链接:高频考点解析 (2) 考点3:词义辨析 (if, whether) 核心讲解 引导宾语从句时,whether 可与 or not 连用,而 if 通常不可以。 中考真题示例 I don't know _ he will come or not. A. if B. whether C. that 考点4:固定搭配 (be proud of...) 核心讲解 掌握常见短语是关键。be proud of (为...骄傲), such as (举例), die out (灭绝)。 中考真题示例 She is proud _ her son's success. A. in B. of C. at 1.7.2013 Let's look at two more key exam points. First, the difference between 'if' and 'whether'. Both can introduce object clauses, but 'whether' can be followed by 'or not', while 'if' usually cannot. Second, fixed collocations. Phrases like 'be proud of', 'such as', and 'die out' are set phrases that you need to memorize as a whole. They often appear in multiple-choice and cloze tests. Pay close attention to these in your studies. ‹#› 互动练习:单词连线 plateau scientist glacier climate disappear 科学家 高原 气候 消失 冰川 1.7.2013 Now it's time for some practice! Let's play a word-matching game. On the left, we have some English words, and on the right, their Chinese meanings. Please take a moment to connect each word to its correct definition. This will help reinforce your memory of these key terms. ‹#› 互动练习:词性转换 请根据括号内的提示,写出单词的正确形式 1. develop (v.) _ (n. 发展) 2. science (n.) _ (n. 科学家) 3. describe (v.) _ (n. 描述) 4. proud (adj.) _ (n. 骄傲) 5. social (adj.) _ (n. 社会) development scientist description pride society 1.7.2013 Another exercise for you: word formation. I'll give you a word and a part of speech in brackets, and you need to write the correct form of the word. For example, turn the verb 'develop' into the noun 'development'. This is excellent practice for the exam and for improving your overall language skills. Let's see how you do! ‹#› 互动练习:情景填空 请从下方单词库中选择合适的词填入短文空格中: "The _ is very bright today. We can see many white _ in the _. Some children are playing on the _ grassland. They are very happy." 单词库 Word Bank sky brightly soft clouds plateau 1.7.2013 Let's put our words into context with a fill-in-the-blank exercise. Read the short passage carefully and choose the best word from the list to complete each sentence. This activity will help you understand how to use these words naturally in sentences, which is exactly what we need for both speaking and writing. ‹#› 课堂总结:回顾与展望 核心单词分类 (Core Vocabulary) 自然景观 (Nature Scenery) 人物情感 (Emotions) 科学概念 (Scientific Concepts) 核心短语 (Key Phrases) be proud of / such as die out / develop into 中考考点 (Exam Focus) 比较级与最高级 / 词性转换 词义辨析 / 固定搭配应用 未来展望 (Future Outlook) 鼓励在生活中运用所学单词,观察自然,了解科学,将语言学习与现实世界紧密结合。 1.7.2013 As we come to the end of our lesson, let's summarize what we've learned. We've covered a wide range of words about nature, emotions, and science. We also reviewed important exam points like comparatives, word formation, and fixed phrases. Remember, the best way to learn words is to use them. So, keep your eyes open, observe the world around you, and try to use these new words in your daily life and studies. ‹#› 课后作业 基础层 (Basic) 抄写本单元所有单词3遍,并默写。 提高层 (Advanced) 用本单元至少10个单词写一篇小短文,描述一次旅行或自然观察。 拓展层 (Extension) 查阅资料,了解一种濒危动物(如肺鱼)的生存现状,并写一份简短的英文报告。 1.7.2013 Here is your homework for today, which is divided into three levels. The basic level is to copy and memorize the words. The advanced level asks you to write a short passage using at least 10 words from the unit. For the extension level, I challenge you to do some research on an endangered animal, like the lungfish, and write a short report in English. Choose the level that's right for you and give it your best shot! ‹#› Thank You! Wish you a happy learning journey! 1.7.2013 Thank you all for your hard work today! You've done a fantastic job learning all these new words and concepts. Remember, every word you learn is a key to a new world. Keep exploring, keep learning, and I wish you a happy and successful journey in English learning. See you next time! ‹#› $