Unit 7 Section B (3a～Self Check) 课件 2024-2025学年英语人教版八年级下册

Unit 7 What's the highest mountain in the world? Section B (3a~Self Check) 23002 1 1.学习目标 3.重点探究 2.自主学习 学习导航 5.当堂检测 6.课堂总结 4.拓展提升 23002 2 新课导入 How much do you know about whales? Are they fish? 学习目标 1.能熟悉并正确运用本课时的重点单词和短语 2.能正确运用所给信息并根据3b呈现的说明文框架进行写作练习 4 自主学习 New words& phrases 1.n. 鲸 ________________ 2.n. 油；食用油；石油 ________________ 3.n. 保护；保卫 ________________ 4.adj. 巨大的；极多的 ________________ 5.跳出水 ________________ 6.保护...免于... ________________ 7.处于危险之中 ________________ 8.往大海里倒…… ________________ whale oil protection huge in danger put...into the sea protect...from... jump out of the water 23002 5 重点探究 鲸的体型是世界上存在的动物中最大的，鲸是终生生活在水中的哺乳动物，对水的依赖程度很大，以致它们一旦离开了水便无法生活，鲸形状像鱼，鼻孔在头的上部，用肺呼吸。体长可达三十米，是现在世界上最大的动物。 Pre-writing 鲸为适应水中生活，减少阻力，它们的后肢消失，前肢变成划水的浆板。身体成为流线型，酷似鱼。因而它们的潜水能力很强，小型齿鲸可潜至100-300米的水深处，停留4-5分钟，长须鲸可在水下300-500米处待上1小时，最大的齿鲸——抹香鲸能潜至千米以下，并在水中持续2小时之久。 3a Read the following words and phrases about whales. Put them in the correct place in the chart. Humans catch whales for meat, fat and oil Eat small fish and other sea life Jump high out of the water Rules on whale protection Huge Water pollution Live in the sea Some kinds have teeth Learn more about whales Stop putting rubbish into the sea Sing songs Whale parts sold to make things like candles and soap What do they look like? Where do they live? What do they eat? What can they do? Why do some of them have to be protected? How can we protect them? Huge; Some kinds have teeth Live in the sea Jump high out of the water;Sing songs Eat small fish and other sea life Humans catch whales for meat, fat and oil; Water pollution; Whale parts sold to make things like candles and soap. Rules on whale protection; Learn more about whales; Stop putting rubbish into the sea While-writing 3b Write a paragraph about whales and why they need to be protected. Use the information in 3a. Then make a poster. Whales are… They live in… They eat… They can… One interesting fact is… Another interesting fact is… Some kinds of whales are in danger because… We should protect whales from… I think people should/shouldn’t… 思路点拨 本文是一篇说明文。该文主要从“鲸鱼的外貌与本领——鲸鱼的生活习性——鲸鱼面临的现状及原因”三方面进行描述。描述外貌需用一些描述性形容词，用“ be good at”或“can”引出其本领；描述生活习性时，可从其住所、食物及习性方面阐述；最后用复合句型引出目前的现状并陈述原因。 One possible version __________________________________ __________________________________ __________________________________ __________________________________ __________________________________ __________________________________ __________________________________ __________________________________ Whales are huge animals. They live in the sea and eat small fish and other sea life. One interesting fact is whales can jump high out of water. Some kinds of whales are in danger because humans catch them for meat, fat, and oil, and use whale parts to make candles and soap. Whales are also in danger from water pollution. We should protect whales by making rules on whale protection and by not putting rubbish into the sea. I think people should learn more about whales. 以“Saving Tigers”为题, 为某中学生英文报“习作园地”专栏写一篇80个词左右的征文稿, 内容要点如下: 1. 老虎是人们在动物园里最喜欢观看的动物之一; 2. 现在世界上仅存大约3 200只老虎, 数目日趋减少; 3. 老虎处境危险的原因; 4. 保护老虎的建议。 习作在线　 (1)体裁: _______。 (2)人称: _________。 (3)时态: ___________。 说明文 第三人称 一般现在时 写作模板： live on grass land. meat－ eating animals look lazy. 介绍外貌特 征及本领 介绍生活习性 目前的现状 及原因 big and strong.. . grey or yellow fur teeth are very sharp.. good at running and hunting. not many lions for fun change grassland into grazing land One possible version __________________________________ __________________________________ __________________________________ __________________________________ __________________________________ __________________________________ __________________________________ __________________________________ Tigers are big and strong animals. They have grey or yellow fur. Their teeth are very sharp. Tigers are good at running and hunting other animals. They mainly live on grassland. They are meat-eating animals. They usually look lazy because they don’t move around often. Now there aren’t many Tigers in the world. People sometimes hunt them for fun. And people keep changing grassland into grazing land. They are losing their living areas. 1 Complete the chart. Adjectives Comparatives Superlatives high dangerous long popular higher highest more dangerous the most dangerous longer longest more popular the most popular 2 Match verbs and objects. Then add one more object to each list. Verbs Objects 1. reach a. my life, my money,… 2. achieve b. the top of a mountain, the library,… 3. risk c. my dream, success,… my health our goal the farmhouse 3 Circle the correct word and /or fill in the blank with the correct form of the word in brackets for each sentence. 1. An elephant weighs (few/many) times more than a dog. 2. An adult panda can eat (much/a little) more than a cat. 3. Canada is a (little/lot) less ______________ (crowded) than China. 4. A tiger is (much/a little) _________ (strong) than a man. crowded stronger 拓展提升 New words 1.oil /ɒɪl/ n. 食用油；石油 e.g. Drying and the oil, not what we want. 干燥和出油，可不是我们想要的。 2.protection /prə'tekʃ(ə)n/ n. 保护；保卫 e.g. His love and protection extend to all. 他的爱和保护扩大到所有. 3.huge /hjuːdʒ/ adj. 巨大的；庞大的；无限的 e.g. This is a huge challenge for all of us. 对于我们所有人来说这是一个巨大的挑战。 当堂检测 Ⅰ. 用括号内所给词的适当形式填空。 1. Jim is very ________. Li Lei is __________ than Jim. (hungry) 2. Kate’s mooncakes are ________ of all. (nice) 3. Your box is ___________ than mine. But his is _________ of the three. (heavy) 4. Unit 2 is quite _______. Unit 3 is ________ than Unit 2. It’s _____________ in Module 1. (hard) 5. This TV play is ________ than that one. (good) hungry hungrier the nicest heavier the heaviest hard harder the hardest better Ⅱ. 根据句意或首字母，用适当的词填空。 1. The biggest ______ in the world is the Sahara. 2. The river is too d______ to swim in. 3. China is one of __________ civilizations (文明) in the world. 4. The ______ of the fastest animal is 120 kilometers per hour. 5. －What ______ do you need for your coat? －I want a large one. desert irty the oldest speed size 课堂总结 Unit 7 Section B (3a~Self Check) 如何写一篇关于鲸鱼的文章： 1) 人称：__________________________。 2) 时态：__________________________。 3) 结构设计: (1)______________________________________； (2)______________________________________； (3)______________________________________。 鲸鱼的外貌与本领 鲸鱼的生活习性 鲸鱼面临的现状及原因 第三人称 一般现在时 重点词汇： __________________________________ __________________________________ __________________________________ whale oil huge protection in danger put...into the sea protect...from... Lavf57.83.100 $$