Unit 8 Lesson 1 Why are plants important-【绿卡初中创新题】2025-2026学年七年级下册英语讲解课件(冀教版·新教材)河北专版

该初中英语课件围绕“植物的重要性”展开，核心知识点包括植物功能（清洁空气、参与水循环等）及相关词汇（cycle, soil等）、短语（be made from, play a part in等）和句型（can't do sth. without...）。课堂导入通过热身提问、同伴讨论及听力对话，构建从功能认知到语言表达的学习支架，帮助学生逐步理解主题内容。 其亮点在于融合语言能力与思维品质，通过思维导图梳理植物功能，语言点辨析（如be made系列图示对比）和小组讨论活动，提升学生分析比较能力和语言运用能力。对学生有助逻辑梳理和表达，对教师提供结构化教学资源，提高教学效率。

UNIT 8 I love nature! Lesson 1 Why are plants important? 1 Warming up 3 Plants clean the air. Plants also play a part in the water cycle. Do you know the function of plants? 1 Talk with your partner about plants. A Do you think plants are important? Yes. They are important for us and animals. B What can plants do to help nature? Give some examples. Plants can clean the air and produce oxygen for us. 你知道植物的重要性吗？ 2 Listen to the conversation and tick the main idea. Li Ming: I love the forest. There are so many trees here. The air is fresh. Wang Mei: Trees and other plants are important for us. Li Ming: Yes, you are right. Plants clean the air. They give us food like fruits and vegetables. Some medicine and clothing are also made from plants. Wang Mei: The forest is important for animals, too. Many animals live in the forest and eat leaves and fruits from the trees. Li Ming: Plants also play a part in the water cycle. And they cover the soil. That way, the wind and water don’t carry the soil away. Plants make the world look beautiful. Wang Mei: Indeed, we can’t live without plants! √ 2 Language Points 12 be made from 由……制成 1 Some medicine and clothing are also made from plants. 一些药物和衣服也是由植物制成的。 【辨析】be made of, be made from, be made in与 be made by be made of 意为“由······制成”，通常指通过制成品可以看出原材料。 The two bridges are made of wood. 这两座桥是木制的。 be made from 意为“由······制成”，通常指通过制成品看不出原材料。 The wine is made from rice. 这酒是用稻米酿造的。 be made in 意为“在（某地）制造”，后面接地点名词。 This mobile phone is made in China.这部手机是在中国制造的。 be made by 意为“被······制造”，后接制造者。 The cake was made by my mom. 这个蛋糕是我妈妈做的。 leaf [可数名词] 叶子 （复数：leaves） These sheep are eating leaves. 这些羊正在吃树叶。 2 Many animals live in the forest and eat leaves and fruits from the trees. 许多动物生活在森林里，吃树的叶子和果实。 拓展：以f，fe结尾的名词变复数时，常将f或fe变为ves。 wife→wives、thief→thieves、shelf→shelves、knife→knives wolf→wolves、half→halves、leaf→leaves、life→lives play a part in 在······中扮演角色 play a part in后接名词、代词或动词-ing形式。其中part作名词，意为“角色”，相当于role。 He plays an important part in the new movie. 他在这部新电影中扮演一个重要的角色。 3 Plants also play a part in the water cycle. 植物也在水循环中发挥作用。 【拓展】 play a part in 还有以下两种意思： （1）发挥作用 Everyone can play an important part in society. 每个人都可以在社会中起重要作用。 （2）参加，参与 Everyone should play a part in the “ Clean Plate Campaign” and say no to food waste. 每个人都应该参与“光盘行动”, 对食物浪费说不。 相当于play an important role in 相当于 take part in carry /ˈkæri/ v. 携带；拿；运送 4 That way, the wind and water don’t carry the soil away. 这样，风和水就不会把土壤带走。 【辨析】carry, take, bring与get carry 搬;拿;提;扛 表示搬运、携带，具有负重的含义。没有方向性。 take 拿走；带走 指把人或物从说话者所在的地方带到别处。有方向性。 bring 拿来；带来 指把人或物从别的地方带到说话者所在的地方。有方向性。 get 去取；去拿 指到某地去把某人或某物带来或拿来。表示来回。 I know some cartoonists always carry pen and paper. 我知道有些漫画家总是带着笔和纸。 Mark often takes his books to Beth’s house to study. 马克常常带着书去贝丝家学习。 Don’t forget to bring it here. 不要忘记把它带到这儿来。 Can you go and get some water for us? 你能去给我们打点儿水吗? make sb./sth. do sth. 使某人/某物做某事 make为使役动词，意为“让，使”，后接不带to的动词不定式作宾语补足语。 The boy makes his mother smile. 这个男孩让他的妈妈笑了。 5 Plants make the world look beautiful. 植物使世界看起来美丽。 拓展：“make sb./sth. +形容词”意为“使某人/某物……”。 Reading books makes us clever. 读书使我们聪明。 can’t do sth. without... 没有······无法做某事 这是一个双重否定结构，表示肯定含义。 其中without作介词，后接名词、代词或动词-ing形式。 其反义词为 with“具有”。 Don’t pollute the rivers because we can’t live without water. 不要污染河流，因为没有水我们无法生存。 You can’t grow tomatoes without sunlight. 没有阳光，你就无法种植西红柿。 6 Indeed, we can’t live without plants ! 的确，我们的生活不能没有植物！ 3 Listen to the conversation again and tick what is mentioned. √ √ √ √ √ √ 4 Work in groups. Talk about why we need plants and complete the mind map. You can use some of the ideas in Activity 3. They clean the air. They are important for animals. Animals eat leaves and fruits from them. They give food to humans. Some medicine and clothing are also made from them. They play a part in the water cycle. They help keep the soil and make the world beautiful. Pronunciation 语调 说话或朗读时声音的抑扬称为语调。英语句子的语调通常分为升调和降调两种,升调或降调都从句子中最后一个重读音节开始。一般遵循以下规则: 1.一般疑问句用升调。 Do you think plants are important?你认为植物重要吗? Are you a student?你是学生吗? 2.省略句表示疑问用升调。 See this puppy?看到这只小狗了吗? Carrot and egg dumplings?胡萝卜鸡蛋饺子吗? 4.特殊疑问句、感叹句通常用降调。 What plants grow near your home? 你家附近生长着什么植物? How clever the monkey is! 这只猴子多么聪明啊! 5.祈使句表示命令用降调,表示请求用升调。 Don’t hurt the animals.不要伤害动物。 Sit down， please.请坐。 6.选择疑问句中, or 前面的用升调,后面的用降调。 Why or why not? 为什么或为什么不? 7.列举事物时, and 前面的用升调,后面的用降调。 I need to buy milk, fiuits, vegetables and meat.我需要牛奶、水果、蔬菜和肉。 注意: （1）话还没有说完，先升后降: I like this skirt, but it is too expensive.我喜欢这条裙子，但是它太贵了。 （2）陈述句用疑问语气说，表示一种怀疑的态度，要用升调： It’s Friday? 今天周五？ 3 Summary 35 重 点 词 汇 cycle n. 循环；自行车 soil n. 土壤；土地 carry v. 携带；拿；运送 重 点 短 语 和 句 型 be made from 由……制成 play a part in 在……中扮演角色 carry...away 带走 4 Practice 38 一、根据句意及汉语提示填写单词 1. It’s a ________（快乐） to play tennis with you. 2. Did you take your _________（药品）? 3. _______（覆盖） the bottle with a piece of paper. 4. It is very interesting to watch the life ______（循环） of an animal. 5. _______（的确）,health is important for all of us. pleasure medicine Cover cycle Indeed 二、用方框中所给单词的适当形式填空 leaf use soil carry provide 6. He _____________ the heavy box to the classroom. 7. Bamboo can be _____ to build houses. 8. Plants ________ food for many animals. 9. Giraffes like to eat _______. 10. If the _____ is rich enough,plants can grow very well. carries/carried used provide leaves soil 三、根据句意填空，使句子通顺、意思完整。每空限填一词 11.Thanks to the plants, the air here is always clean _____ fresh. 12.Trees and plants are part ___ our life. 13.It is important ____ us and other animals. 14.Many things come ______ trees and plants. and of for from 15.—What would you like for afternoon tea? —Just ___ cup of coffee. a Simply communicate the importance of plants with your classmates in English. 2. Preview the new words and expressions in Lesson 2. Homework 绿卡图书—走向成功的通行证 Lavf58.46.101 Blues 48144.0 null 17928.0 $