Unit 8 lesson4 课件 2025-2026学年冀教版英语 八年级上册

该初中英语课件围绕“Global warming”主题，通过灾害图片提问（如floods, droughts）导入，以“问题-原因-影响-解决”逻辑链展开，结合思维导图填空梳理原因、视频观看（冰盖消融）直观呈现影响，衔接词汇语法（如increase, effect的用法）和拓展写作（塑料污染，迁移相同结构），搭建清晰学习支架。 其亮点在于多模态教学与结构化思维培养，融合语言能力（如“have an effect on”在例句中应用）、思维品质（思维导图梳理逻辑，写作模板迁移应用）。活动丰富（判断、选择、写作），学生能提升语言应用与问题分析能力，教师可直接使用结构化内容高效开展教学。

Unit 8 Protecting the environment Lesson 4 Global warming What kind of disasters are they? Do you know what might cause these disasters? floods droughts the melting of icebergs global warming 2 3 Read and analyse Analyse the structure of the passage. The earth is getting hotter. We call it global warming. What makes this happen? People burn things like gas, oil, and coal. They cut down trees and create a lot of waste. These are major reasons for global warming. problem+reasons 全球变暖 n.天然气 n.石油 n.煤 砍伐树木 制造大量垃圾 ...的主要原因 Read the passage again and complete the mind map. Global warming major reasons solution effect • Burn things like ________________. • ___________down trees • Create ______________ gas, oil and coal Cut a lot of waste Read and complete Global warming affects everything on the planet. It’s like getting a fever. If we have a few degrees’ increase in body temperature, we feel sick. The same goes for our planet. The effects of global warming are serious. For example, the snow and ice in the North Pole are starting to melt. This causes the sea level to rise, which can lead to more floods and storms. effects n.行星 发烧 适用于 北极 v.融化 海洋水位上升 导致 n.洪水 暴风雨 • The snow and ice in the North Pole ___________________. • The sea level is rising, which can lead to ___________. Global warming major reasons solution effect are starting to melt rising 1. If we have a few degrees increase in body temperature, we feel sick. 如果我们的体温升高几度，我们会感到不适。 increase v.增加；增长 n.增加；增长(通常指数量、程度或范围的增加) 相关短语：increase from...to... 从……增加到……； increase by 增加了……； increase in 在某方面的增加； increase to 增加到……； increase with 随……增长。 2. The effects of global warming are serious. 全球变暖的影响非常严重。 effect n. 影响；效果；结果 have an effect on... 对……有影响 come/go into effect 开始生效，开始实施 take effect 生效；起作用 be in effect 有效；在实施中 e.g. The new policy has an effect on the economy. 新政策对经济产生了影响。 The new policy will come into effect next month. 新政策将在下个月开始生效。 serious adj. 严重的；严肃的；重要的 常见用法：be serious about 对待……严肃；认真对待…… nothing serious 不严重；没什么大问题 seriously adv. 严重地；严肃地；重要地 常见用法：take sb./sth. seriously 认真对待某人/ 某事 seriously ill 病得很重 seriously hurt 严重受伤 e.g. You should take the problem seriously.你应该认真对待这个问题。 2. The effects of global warming are serious. 全球变暖的影响非常严重。 cause ①v. 导致；造成；引起 3.This causes the oceans’ water level to rise, which can lead to more floods and storms. 这导致海洋水位上升，从而可能引发更多的洪水和暴风雨。 e.g. He caused his parents much trouble. =He caused much trouble to his parents.他给父母带来很多麻烦。 What her mother said yesterday caused her to study harder. 她母亲昨天的话使得她学习更加努力。 cause sth for sb= cause sb sth 给某人带来某事/物（多指麻烦） cause sb/ sth to do sth 导致某人/某物做某事 ②n. 原因；理由；事业 e.g. We have no cause to question his honesty.我们没有理由来质疑他的诚实。 World peace is a cause we should all work for. 争取世界和平是一项我们都应该为之努力的事业。 Watch a video Thankfully, we can help slow down global warming by taking some simple actions. Instead of driving, we can choose to walk or bike. Turn off devices we aren’t using like TVs and lights. Another great way to help is by planting trees in our community and doing other “green” activities. Just by making some small changes in our daily lives, we can play a role in addressing global warming. solutions adv.幸亏 放慢，放缓 n.行动，行为 choose to do sth选择做某事choose-chose-chosen 关闭turn on打开 n.行动，行为 日常生活 在...方面发挥作用 v.设法解决，演讲 n.地址，演讲 • Choose to ______________ instead of driving. • Turn off _______________________________ _____________________________________. • __________ and do other “green” activities. Global warming major reasons solution effect walk or bike devices we aren’t using like TVs and lights Plant trees Activity 2: Read and judge Read the passage in Part 2 and write true (T) or false (F). 1.Global warming is mainly caused by nature. ( ) 2. Global warming affects everything on the planet. ( ) 3. Planting trees is a great way to slow down global warming . ( ) F T T 16 1.Use energy sources such as solar and wind power. 2.Let people around you know about the harm of global warming. 3.Take shorter showers to save water and energy used for heating the water. 4.Choose environmentally-friendly products with less packaging 5.Use things again or recycle them for other purposes. 6.Attend environmental clubs to learn more about the environment. 7.Try to eat less meat and more vegetables. Activity 4: Think and tick Work in pairs, think and tick the things we can do to slow down global warming in Part 4. 能源 太阳能和风能 环保产品 17 The earth is getting hotter.We call it_____________ .There are some reasons: people burn things like_________,__________,and___________.They also___________ trees and create a lot of______________. There are some damages of global warming. For example, snow and ice in the North Pole are starting to_______________and the oceans’water level____________ . But how to solve the problem? We can choose to__________or______________ instead of driving. Turn off____________we aren’t using. We can also plant trees and do other “green” ___________. Let’s make small___________ in our daily lives, and then we can____________ in addressing global warming. global warming gas oil coal cut down waste melt to rise walk bike devices activities changes play a role 18 There are many other environmental problems. Think and write about one of them. A What is the problem? B What do you think are the causes of this problem? C What are its effects? D What should we do to solve this problem? The following questions may help you: Think and write ...的原因 解决这个问题 A What is the problem? B What do you think are the causes of this problem? C What are its effects? D What should we do to solve this problem? Sample: Plastic pollution. People use too many plastic bags and bottles, and don't recycle them properly. Plastic waste harms sea animals and pollutes the environment. We should use reusable bags and bottles, and recycle plastic waste. Structure: problem+reasons→effects→solutions Plastic pollution Plastic waste is a big problem because people use too much plastic every day. Many items like bags and bottles are made of plastic and are thrown away after one use. Some people don’t recycle or throw plastic waste properly, which makes the pollution worse. This pollution harms both nature and humans. Sea animals like turtles and seals often mistake plastic for food, leading to starvation or death. On land, plastic waste fills landfills and releases toxic chemicals into soil. To reduce plastic waste, we can take simple actions. First, use reusable bags and bottles instead of single-use plastic. Second, recycle plastic waste correctly. Third, tell others about the importance of reducing plastic. Every small effort counts! Lavf58.20.100 Lavf58.12.100 Lavf58.20.100 $