初中英语人教版（2024）八年级下册（2024）Section B优秀课件ppt

这是一份初中英语人教版（2024）八年级下册（2024）Section B优秀课件ppt
Unit 5 Nature’s TemperSection B（2a-2c）· 学习目标· 新课导入· 内容讲解· 课堂总结· 课后作业Learning goals1. New words: landslide, safeguard, floodwater, manpower, heartbeat, rescue, heatwave, southwestern, firefighter, volunteer2. Expressions: take place, sweep through, blow across 3. Sentences: ① It can be very difficult to see clearly on the roads. ② The tsunami swept through the village.What caused the wildfire?How did people stay safe??New wordslandslide /ˈlændslaɪd/ n. 滑坡；塌方safeguard /ˈseɪfɡɑːd/ v. 保护；捍卫 floodwater /ˈflʌdwɔːtə(r)/ n. 洪水manpower /ˈmænpaʊə(r)/ n. 劳动力；人力heartbeat /ˈhaːtbiːt/ n. 心跳（声）rescue /ˈreskjuː/ n.& v. 救援；营救heatwave /ˈhiːtweɪv/ n. 热浪southwestern /ˌsaʊθˈwestən/ adj. 西南的；西南方向的firefighter /ˈfaɪəfaɪtə(r)/ n. 消防队员volunteer /ˌvɒlənˈtɪə(r)/ n. 志愿者；自告奋勇者 v. 自愿做；义务做Some words for natural disasters go together with certain verbs. Use these collocations to make sentences.An earthquake rocked the small town last year.A typhoon blew across the island last night.The tsunami came towards the shore quickly.Language points“ take place ”意为“发生”，多指按计划、安排发生的事件，不能用于被动语态。一般现在时：表示经常性、习惯性的发生/举行。例：The Spring Festival takes place in January or February every year.一般过去时：描述过去发生的具体事件。例：An important meeting took place in our school last week.现在完成时：强调从过去到现在发生的变化或经历。例：Many great changes have taken place in my hometown since 2000.Language points1. 完成句子。Great changes ______________ (take place) in our city since 1999.have taken place2. 翻译句子。这场艺术节将于下周六在市中心的广场举行。The art festival will take place in the square in the city center next Saturday.“sweep through” 表示“席卷;迅速传遍;横扫”,既可以指具体的事物(如风暴、洪水、火焰等)快速掠过某个地方,也可指抽象的事物(如情绪、谣言等)在某处迅速传播。1.主动语态：主语是动作的发出者（如风暴、情绪等），这是最 常用的形式。例：A wildfire swept through the forest last month.2. 被动语态：偶尔可用于被动 (be swept through)，但较少见，多 强调“被席卷/波及”。例：The small town was swept through by the typhoon.（这个小镇遭到了台风的横扫。）1. 完成句子。A wave of panic _____________ (sweep through) the crowd when the alarm rang.swept through2. 翻译句子。当人们得知这位著名作家去世的消息时，一阵悲痛迅速席卷了整个文学界。When people learned the news of the famous writer's death, a wave of sorrow swept through the entire literary circle quickly.Look at the compound words in the box. Do you know what they mean? Complete the sentences using five of these words.landslide snowstorm earthquake safeguardfloodwater manpower wildfire heartbeat1. The rescue workers need more _________ to clear the streets.2. The family built strong roofs to ________ their house from heavy storms.manpowersafeguard landslide snowstorm earthquake safeguardfloodwater manpower wildfire heartbeat3. The doctor listened to the man’s _________ carefully.4. During the storm, the ___________ nearly reached our windows.5. People should avoid driving during a _________ because it can be very difficult to see clearly on the roads. heartbeatfloodwatersnowstormComplete the passage with the correct forms of the words in the box.refuse drought warn hit safe wildfire In August 2022, China experienced a great heatwave. It caused ______ in different parts of the country. The heatwave ____ the southwestern city of Chongqing very hard. Large _________ swept through the forests and mountains there. Over 5,000 firefighters, police, and volunteers all worked together to keep the people and their homes safe.droughthitwildfires They put out the fires, brought more than 1,500 people to _________ , and _________ others to stay away from dangerous areas. It was very hard to fight the fires because of the high temperatures and changeable winds, but the rescue workers _________ to give up. By the end of August, they managed to put out all the fires.refuse drought warn hit safe wildfiresafetywarnedrefused“ it can be difficult to ”意为“做某事可能会很困难”。1. 核心结构：It + can be + difficult + to do sth.2. 否定形式：It can not（can’t）be difficult to do sth. ( “做某事可能不困难 ” )3. 不定式的逻辑主语：若需明确“谁做某事”,可加 for sb.，结构为 It can be difficult for sb. to do sth. ( “对某人来说，做某事可能会很困难” )。例：It can be difficult for beginners to learn English grammar.（对初学者来说，学英语语法可能会很困难。）1. 完成句子。It can be difficult __________________ (communicate) with people from different cultural backgrounds.2.单项选择。_____ for children to understand the meaning of this poem.A. It can be difficult B. It can difficult C. That can be difficult D. It is difficultyto communicateASummaryNew wordslandslide, safeguard, floodwater, manpower, heartbeat, rescue, heatwave, southwestern, firefighter, volunteerSentences① It can be very difficult to see clearly on the roads. ② The tsunami swept through the village.HomeworkMemorize the new words, expressions and sentences in Section B (2a-2c).Finish the exercises of the test paper on the book 5·3.