Unit 9 Forces of Nature（Grammar in Use）课件 2025-2026学年仁爱科普版八年级英语下册

Grammar in Use Unit 9 Forces of Nature 英语仁爱科普版八年级下册 Learning objectives 重点 重点 通过本节课的学习，学生能够： 1. 在语境中理解、归纳合成词的构成形式及表意功能； 2. 掌握副词比较级和最高级的形式、意义及变化规则； 3. 小组合作，运用所学谈论自然灾害，进一步增强安全防 范意识。 Look and answer Look at the pictures and answer the question. What can you see in each picture? I can see a lot of snow and strong winds. There is bright lightning in the sky. The buildings fall down and are broken. /ˈlaɪtnɪŋ/ n. 闪电 Read and think Read the sentences and pay attention to the words in bold. snow + storm snowstorm A snowstorm is a storm with strong winds and a lot of snow. /stɔːm/ n. 暴风雨 A thunderstorm is a storm with thunder and lightning. /ˈθʌndə/ n. 雷 An earthquake is a quake of the surface of the earth. /kweɪk/ n. 地震 earth + quake earthquake thunder + storm thunderstorm Observe and think Observe the words and think about the question. + snow thunder earth storm storm quake snowstorm thunderstorm earthquake Compound words Compond words 合成词： 由两个或两个以上的词组合在一起而构成的一个新词。 Can you think of more compound words? Fill in the table and work out the rules of compound words. Fill and work out ◆ 直接合并单词 Rules of formation Words Words Compound words note book sun flower rain coat notebook raincoat sunflower white board whiteboard south east southeast ◆ 意义整合：并非原词意义的简单叠加，而是形成新的特定概念。 Rules of meaning Words Words Compound words butter fly green house break fast  butterfly  breakfast greenhouse ◆ 语法功能：作为单一词汇使用，有独立的词性。 Grammar function 1. classroom ____ 2. oversleep ____ 3. hardworking ____ n. v. adj. Fill in the table and work out the rules of compound words. Fill and work out 4. upstairs ____ adv. Read and fill Fill in the blanks with the given words in the box. flashlight sandstorm aftershock supermarket 1. You’d better bring a(n) __________ if you need to walk on a dark road. 2. People living in the desert know how to keep themselves safe when a(n) __________ comes. 3. We should buy cooked food and clean water in the _____________ before snowstorm. 4. A strong __________ of the earthquake happened about 40 minutes later, and it caused more harm to the area. flashlight sandstorm supermarket aftershock Read and guess Read the text and guess the meaning of the underlined words. With fewer grasslands in some areas, the sandstorm appears more often. Sandstorms can cover farmlands, cause traffic accidents, and harm human health. People should take action in time to fight against sandstorms. Or, the sandstorm may become a worldwide problem. 1. grassland 2. sandstorm 3. farmland 4. worldwide = grass + land 草地 = sand + storm 沙尘暴 = farm + land 农田 = world + wide 全世界的 Read and learn Read the conversation and pay attention to the words in bold. Will there be a disaster prevention training at school tomorrow? Yes. We must arrive earlier than usual. No problem! What should we wear to school? We’d better wear sports shoes. We can perform best in sports shoes. /prɪˈvenʃn/ n. 预防 /pəˈfɔːm/ v. 演出；表演 comparative adverb superlative adverb We usually use comparative and superlative adverbs when we the way things happen. compare and contrast How can we change adverbs into the comparative or superlative forms? Adverbs Comparative Superlative fast seriously early faster fastest more seriously most seriously earlier earliest Regular rules Adverbs with the same forms as adjectives Three-syllable adverbs Adverbs formed from adjective + ly Do you know the irregular rules? Try to give some examples. Fill and learn Complete the table. Adverbs Comparative Superlative far much badly little well farther/further farthest/furthest more most worse worst less least better best Irregular rules Think and complete Complete and learn Complete the table and learn how to use the comparative and superlative adverbs. Adverbs Comparative Superlative fast The forest fire spread faster than we thought. The guards ran (the) fastest to put out the fire. carefully He drives _____________ than I do. Xia Feng checks the windows ______ _______________. far We need to walk _______ to keep away from the flood. The floodwater reached _____________ into the eastern part of the city after the heavy rain. more carefully (the) most carefully farther (the) farthest Let’s conclude How can we use the comparative or superlative adverbs? the comparative degree of adverbs 1. “副词比较级 + than”结构，意为“_______________”。 e.g. Tom gets up _________ (early) than his sister. 比……更…… earlier the superlative degree of adverbs 2.“(the) + 副词最高级 + in/of ... (比较范围) ”结构，意为 “_______________________________________”。 e.g. He swims __________ (good) in our school. 某人（或某物）在某范围内最…… (the) best Read and complete Complete the text with the correct form of the given words. bad far hard high terrible On November 1st, 2012, Hurricane Sandy swept through our town. I still remember how terrible the superstorm was. We lived _______ away from the beach than most of our neighbors, and our house stood on a hillside. I thought we were safe. But the wind was blowing _______ every minute and the waves kept reaching __________. Soon, the storm arrived and took away the roof of our house. It hit the beach side of the town _________. Nearly everything there was gone. It is a _______ painful experience for me and I still can’t get over it. farther harder higher terribly (the) worst /ˈsuːpəstɔːm/ n. 超级风暴 /ˈhɪlsaɪd/ n. 小山坡 /ruːf/ n. 屋顶 /ˈpeɪnfl/ adj. 令人疼痛的 Read and answer 1. What happened on November 1st, 2012? 2. Where did the writer live? 3. How was the wind changing as the storm approached? 4. What terrible damage did the disaster cause to the beach side of the town? Read the text again and answer the questions. Nearly everything there was gone. The wind was blowing harder every minute. His house stood on a hillside, farther away from the beach than most of his neighbors. Hurricane Sandy swept through the writer’s town. Work in groups. Talk about a disaster you’ve ever experienced or heard by using compound words, comparative and superlative adverbs. Then give a report. Talk and report What was the name of the disaster? When and where did it happen? What damage did it cause? ... Last winter, a heavy snowstorm swept through my hometown. The snow fell more heavily than any other year. Many trees fell down because of the strong wind. The old part of the town was hit the worst. And ... Summary 2 1 After learning this lesson, I can 3 talk about natural disasters using what I’ve learned today. master the structure and meaning of the compound words. learn the usage of the comparative and superlative adverbs. 1. Write down your report. 2. Preview Oral Communication. Homework Unit 9 Thank you! $