Unit 8 Lesson 4 Natural disasters are dangerous-【绿卡初中创新题】2025-2026学年八年级下册英语上课课件(冀教版·新教材)河北专版

该初中英语课件围绕“Natural disasters are dangerous!”主题，聚焦自然灾害相关词汇（如amount, destroy）、短语（如cool down, reach up to）及核心句型，通过看图猜灾害（typhoon, flood, wildfire）导入，引导学生阅读分析灾害定义、成因和危害，构建从识别到理解的学习支架。 其亮点在于融合语言能力与思维品质，通过表格梳理灾害要素培养结构化思维，写作任务以问题链（定义、成因、危害、应对）引导提升表达能力，作业中科普手册制作助力学习能力发展。学生能提升综合语言运用能力，教师可依托系统活动设计提高教学效率。

第 4 课 时 Unit 8 Natural disasters Lesson 4 Natural disasters are dangerous! 单词：amount, destroy, successfully, badly 短语：cool down, reach up to, large amounts of , fight against 句型：①Typhoons can bring heavy rain and help cool down hot summers. ②Floods are large amounts of water covering an area. 能够读懂文章，能了解一些自然灾害的定义、成因和危害及其安全提示。 Learning Goals 1 2 能够用英语书写一篇关于常见自然灾害的文章。 3 3 per /pə（r）/ prep. 每；每一 amount /ə̍maʊnt/ n. 数量；数额 overflow /̩əʊvə̍fləʊ/ v. & n. 漫出 destroy /dɪ̍strɔɪ/ v.破坏；消灭 troop /truːp/ n. 军队；士兵；连队 successfully /sək ̍sesfəli/ adv.成功地 grassland /̍grɑːslænd/ n. 草原；草地 badly /̍bædli/ adv.严重地；非常 课 堂 学 习 Vocabulary cool down 变凉；冷却 reach up to 高达 large amounts of 大量的 fight against 与……作斗争 Structures and Expressions Lead-in Look at the pictures and guess what disasters the passage talks about. typhoon flood Wildfire 1 Read the passage and answer some questions. Typhoons are strong storms with powerful winds. They usually occur in the Western North Pacific. Typhoons form when warm water from the ocean meets certain wind patterns. Typhoons can bring heavy rain and help cool down hot summers. However, they can be very dangerous and cause a lot of damage. During a typhoon, wind speeds can reach up to 252 kilometres per hour or even higher. This can make trees fall, damage buildings, and cause floods. Floods are large amounts of water covering an area. They happen when there’s too much rain or when rivers overflow. Floods can hurt a lot of people and destroy farms, buildings, and roads. In China, one of the biggest floods was the 1998 Changjiang River flood. The PLA troops fought against this terrible flood and protected millions of people. They successfully kept major cities like Wuhan safe. Wildfires are big, out-of-control fires. They happen in natural places like forests and grasslands. They can badly hurt animals, plants, and the environment. They are also dangerous to people living nearby. In 2023, Canada experienced many big forest fires, affecting an area of over 60,000 square kilometres. 1. Where do typhoons occur? 2. What effects can typhoons bring? 3. What is the result of the 1998 Changjiang River flood? 4. Where do wildfires happen? Typhoons usually occur in the Western North Pacific. They can bring heavy rain and help cool down hot summers. They can be very dangerous: strong winds (up to 252 kilometres per hour or higher) can make trees fall, damage buildings, and cause floods. The PLA troops fought against the flood and protected millions of people, successfully keeping major cities like Wuhan safe. Wildfires happen in natural places like forests and grasslands. Read the passage again and complete the table. 2 Natural disaster Explanation Cause Damage Typhoon Flood Wildfire human activities, lightning, etc. A strong storm with powerful winds. Warm water from the ocean meets certain wind patterns. Heavy rain, strong winds (up to 252 km/h or higher), fallen trees, damaged buildings, floods. Large amounts of water covering an area. Too much rain or rivers overflowing. Hurt people, destroy farms, buildings, and roads. A big, out-of-control fire. Badly hurt animals, plants, and the environment; danger to people living nearby. What should you do when s disaster happens? Think and match the terms with the tips. 3 Write a passage about a common natural disaster. 4 The following questions may help you: A What is this natural disaster? B What causes it? C What are its dangers? D How should you respond if it happens nearby? 1. Typhoons form when warm water from the ocean meets certain wind patterns. 当来自海洋的温水遇到特定的风型时，就会形成台风。 这是一个含时间状语从句的复合句。主句结构：Typhoons 主语+ form 谓语，之后是时间状语从句。引导词when 表示“当……时”。从句结构：warm water 主语+from the ocean(介词短语作后置定语，修饰 water)+meets 谓语+ certain wind patterns 宾语。 Language points when 引导的时间状语从句的用法：主句为一般现在时，从句也用一般现在时(表示客观规律)。若主句是一般将来时，从句常用一般现在时表将来(主将从现)。还可根据实际语境用过去相关时态。 例句：Plants grow faster when they get enough sunlight and water. 当植物获得足够阳光和水分时，生长更快。 例句：I will call you when I arrive at the station. 我到达车站时会给你打电话。 例句：When she entered the room, he was reading a book. 当她进入房间时，他正在看书。 2. Typhoons can bring heavy rain and help cool down hot summers.台风可以带来暴雨，帮助炎热的夏天降温。 cool down “(使)温度降低；冷却；冷静下来”，既可以指物体降温，也可以指人情绪平复。同义短语：calm down，侧重情绪冷静。 与down 相关的短语： cut down 砍倒；削减 turn down 调小(音量)；拒绝 write down 写下；记下 break down (机器)出故障 例句：After exercising, it’s important to cool down by stretching. 运动后，通过拉伸来降温很重要。 例句：The hot soup needs to cool down before you can eat it. 热汤需要冷却后才能喝。 3. However, they can be very dangerous and cause a lot of damage. 然而，它们可能非常危险，会造成很多伤害。 damage 一词多义 (1) 作动词时，意为“损害；毁坏”，为及物动词，直接接宾语。 (2) 作名词时，意为“损害；毁坏；损失”，为不可数名词。 常见搭配：cause damage to ... 对……造成损害 suffer damage 遭受损失 repair the damage 修复损害 例句：The heavy rain damaged many crops in the field. 暴雨毁坏了田里的许多庄稼。 例句：The storm caused serious damage to the coastal village. 暴风雨给这个沿海村庄造成了严重损害。 4. During a typhoon, wind speeds can reach up to 252 kilometres per hour or even higher. 在台风期间，风速可达每小时252公里甚至更高。 reach up to 高达 后接具体数字，表示数量、高度、价格等达到某个最大值，相当于“up to”。 例句：The price of the new phone can reach up to 8,000 yuan. 这款新手机的价格可高达 8000 元。 例句：The mountain reaches up to 3,000 meters in height. 这座山高达 3000 米。 5. Floods are large amounts of water covering an area. 洪水是指大量的水覆盖一个地区。 amount n. 数量；数额 “the amount of ……的数量”，后面接不可数名词，作主语时，谓语动词要使用单数形式。 常见搭配：a large/great amount of 大量的 a small amount of 少量的 the least amount of 数量最少的 例句：A large amount of water is wasted every day. 每天都有大量的水被浪费。 例句：She spent a small amount of money on the new book. 她买这本新书花了少量的钱。 例句：He spent the least amount of time preparing for the exam. 他花最少的时间备考。 6. The PLA troops fought against this terrible flood and protected millions of people.中国人民解放军与这场可怕的洪水作斗争，保护了数百万人。 fight 常用短语： fight against 后接名词，意为“与……做斗争” fight for 后接抽象名词，意为“为(事业、自由、真理、权利等)而斗争/ 战斗” fight with后接表示人或国家的名词，意为“与………一起对抗”，也可意为“和……争吵” fight over 意为“为……而争吵/ 争斗” 例句：We should fight against pollution to protect the environment. 我们应与污染作斗争来保护环境。 例句：The doctors are fighting against the disease day and night. 医生们日夜与疾病作斗争。 例句：He fought with his friends to defend their school. 他和朋友们一起并肩保卫学校。 7. They successfully kept major cities like Wuhan safe. 他们成功地维护了武汉等大城市的安全。 success, succeed, successful 与successfully success 名词 “成功；成就”, 是不可数名词，其反义词为failure“失败”；作“成功的事”讲时是可数名词 succeed 动词 “成功”，succeed in doing sth. 意为“成功做某事”。其反义词为fail“失败” successful 形容词 “成功的”，由名词success + -ful构成的形容词，be successful in doing sth.意为“成功做某事” successfully 副词 成功地，由形容词successful + -ly构成的副词。 例句：I have success in passing my exam. = I have succeeded in passing the exam. = I’m successful in passing the exam. = I successfully passed the exam. 我成功地通过了考试。 例句：Though he had failed three times in the business plan, his team finally succeeded in improving it—this successful revision not only brought them great success, but also proved they could complete the task successfully. 尽管他的商业计划失败了三次，但团队最终成功改进了它 —— 这次成功的修订 不仅为他们带来了巨大的成功，也证明了他们能成功完成任务。 8. They can badly hurt animals, plants, and the environment.它们会严重伤害动物、植物和环境。 badly 一词多义： (1)表“程度严重”：用于修饰动词、过去分词。 (2) 表“迫切地；非常”：相当于“very much”，常用于 want/need 等动词后。 相关词汇：比较级worse 更糟地 最高级worst 最糟地 bad adj. 坏的 例句：The car was badly damaged in the traffic accident. 这辆车在交通事故中受损严重。 例句：She wants to join the school team badly. 她非常想加入校队。 一、单项选择 Practice 1. A typhoon is a strong storm ________ powerful winds. A. for B. with C. on D. at 2. The wind speed of a strong typhoon can reach up ________ 252 kilometres per hour. A. to B.with C. about D. in 3. Too much rain or river overflow will ________ terrible floods easily. A. cool down B. reach up to C. lead to D. keep safe 4. There is ________ rain and it will cause floods. A. too many B. little C. a little D. too much 5. The PLA troops helped ________ people stay safe in the 1998 flood. A. five millions B. five million of C. millions of D. million of B A C D C 二、完成句子 1.The sun goes behind the clouds and the air begins to ______ ______.（冷却；降温） 2.The tall building can ______ ______ ______ 100 meters.（达到；高达） 3.Bad weather will ______ ______ serious natural disasters.（导致；引起） 4.There is ______ ______ waste water in the river.（太多） 5.______ ______ people lost their homes in the big flood.（数百万的） cool down reach up to lead to too much Millions of 三、阅读表达 Natural disasters are very dangerous, but we can protect ourselves with safety tips. For earthquakes: If you are inside, get under a table or bed. Do not stand near walls or windows. Never get into a lift. If you are outside, move to an open area and stay away from buildings. If you are in a car, pull over to a safe place. If you are near the sea, get away from the water. For typhoons: Stay indoors, shut all windows and doors, and stay away from windows. For floods: Go to higher ground. Never walk or drive through floodwaters. For wildfires: Follow authorities’ advice and leave if necessary. Avoid breathing in the smoke, as it can hurt your throat and lungs. After any disaster, stay calm and check for dangers. Only make necessary phone calls. 1．完成句子：We can protect ourselves from natural disasters with _________. 2．完成句子：For typhoons, we should stay indoors and ________ all windows and doors. 3．回答问题：Why should we avoid breathing in the smoke during a wildfire? _____________________________________________________________ 4．回答问题：What should we do if there is a flood? _______________________________________________________________ 5．将文中画线句子翻译成汉语：Never walk or drive through floodwaters. _______________________________________________________________ safety tips shut/close Because it can hurt our throats and lungs. We should go to higher ground and never walk or drive through floodwaters. 切勿步行或驾车穿过洪水。 Modify the passage you wrote in the class. 2. Make a popular science brochure about a natural disaster that you know or you want to know. Homework 绿卡图书—走向成功的通行证 null 99815.805 $