九年级下册 Unit 4 课时2 阅读-【宝典训练】2025-2026学年九年级全一册英语高效课堂教学课件（沪教牛津版 广州深圳沈阳通用）

该初中英语课件围绕Unit 4 Natural disasters阅读课，聚焦条件状语从句、定语从句及It's important for sb. to do sth.等核心知识点。通过语境微练（如翻译“海平面上升25米会怎样”）导入，衔接if条件句旧知，以例句对比和语法填空搭建学习支架，帮助学生逐步掌握复杂句式。 其亮点在于融合语言能力与思维品质培养，通过课文重点句精讲（如which/that定语从句辨析）、语法填空及环保主题阅读理解（如全球变暖与冰雹形成），提升学生语言运用和逻辑分析能力。讲练结合的设计，助力学生夯实基础、培养批判性思维，也为教师提供系统教学资源，提高课堂效率。

天骄出品 必属精品 深圳天骄文化传播有公司 宝典训练 配套教学课件 高效课堂 课时2　阅读 Unit 4　Natural disasters 目录 CONTENTS 2 课时过关 1 课时精讲 课时精讲 1. What would happen if sea level rose 25 metres？　 2. which/that 　 3. It’s important for us to learn English well. 课时过关 Ⅰ.1.be flooded 2.to worry 3.a 4.coaches 5.tried 6. But 7.playing 8.more important 9.In 10.dangerous Ⅱ.第一节　1—5　BACAC　第二节　1—5　BCADB 课时过关 返回 目录 课时精讲 课文重点句子讲解与学习 1. What would happen if our city was badly flooded？如果我们的 城市被严重淹没的话会发生什么呢？ 精讲：What would happen if …？ 如果……会发生什么呢？ 例句：What would happen if he knew this？ 如果他知道这件事 的话会发生什么呢？ 课时过关 返回 目录 课时精讲 如果海平面上升25米的话会发生什么呢？（翻译句子） ⁠ What would happen if sea level rose 25 metres？ 课时过关 返回 目录 课时精讲 2. He sent me an email back which said， “Kevin， my boss has given me some work.” 他给我回了邮件，说：“凯文，老板让我处理一些工作。” 精讲：which 在句中引导定语从句修饰email，此处也可用 that 替换。 例句：This is the movie which/that I’m looking for. 这就是我正 在找的那部电影。 It is a very relaxing TV programme is hot among the young people. which/that 　 课时过关 返回 目录 课时精讲 3. It’s important to stick with it.I can’t afford to sit around and worry about the flood. 坚持完成这些工作很重要。我没有时间闲坐着担心洪水。 精讲： （1）It’s important （for sb.） to do sth.（某人）做某事是重 要的。其中 it 为形式主语，后面的不定式才是真正的主语。这 样可以避免句子头重脚轻。用于此句型的形容词主要有： easy， hard， difficult， important， interesting 等。 注意：形容词若表示人的性格与品质，如 kind， good， nice 等，for sb. 要改为 of sb. 课时过关 返回 目录 课时精讲 常用句型： It is＋adj.＋to do sth.；It is＋adj.＋for sb.to do sth.；It is＋ adj.＋of sb.to do sth.；以上句型中的it都是形式主语。 例句：It’s very important to exercise. 锻炼是非常重要的。 stick with… 持续；坚持 学好英语对我们来说是重要的。（翻译句子） ⁠ It’s important for us to learn English well. 课时过关 返回 目录 课时精讲 辨析：stick to sth.和stick with sb./sth. （1）stick to sth.不放弃或不改变某事物；坚持或维持某事物。 （2）stick with sb./sth.继续支持某人（某事）；保持与某人 （某事）的联系。 We don’t want to hear your opinion； stick to the facts.我们不 想听你的想法，只讲事实。 Fred stuck with his homework until it was done.弗雷德继续做他的作业，直到做完为止。 课时过关 返回 目录 课时精讲 （2）sit around无所事事地消磨时间；闲坐。 例句：Tom is not a boy who sits around doing nothing.汤姆不是 那种坐在那里什么都不做的男孩。 课时过关 返回 目录 课时精讲 4. I have no time to think about the flood.我没有时间想洪 水的事。 精讲：have no time to do 不愿花时间……；没有时间做…… 例句：Oh， I have no time to do morning exercises.哦，我没有 时间做早操了。 5. I was safe—for now.我暂时安全了。 精讲：for now意为“暂时”，相当于for the moment。 例句：Good.That’s all for now.好的。现在就这样了。 课时过关 返回 目录 课时精讲 Ⅰ.课文语法填空 If all the ice in the North and South Poles melted， sea level around the world would rise， and many cities would 1. ⁠ （flood） and disappear. It started 2. ⁠ （worry） me. Last night， I dreamt about 3. great flood： It was nine o’clock in the morning. My bedroom floor was a pool of water. Water was everywhere. Large objects， such as 4. （coach） and boats， passed by my window. be flooded　 to worry　 a　 coaches　 课时过关 返回 目录 课时精讲 I had to do something. I 5. （try） to call my dad， but the line was dead. My computer was still working， so I sent him an email for help. 6. he said he had no time to worry about the flood. Then I emailed my best friend. He was busy 7. （play） computer games. It seemed that they did not want to leave. Computer was 8. （important） than the flood. Very soon， the water came into people’s rooms. 9. surprise， people finally started to notice the flood， but it was too late. Then I awoke. There was no water. It was not 10. （danger）—for now. tried　 But　 playing　 more important　 In　 dangerous　 课时过关 返回 目录 课时精讲 Ⅱ.阅读理解 　　第一节　阅读短文，根据短文内容从A、B、C、D四个选 项中选出最佳选项。 The skies are raining big blocks of ice， and experts are trying to learn what’s going on. For the second time in six days， California was attacked by ice balls. The latest happened on early Thursday. A large block of ice dropped into Loma Linda， California. The ice crashed through the metal roof of a fitness center， leaving a hole. No one was hurt. 课时过关 返回 目录 课时精讲 　　“Two tennis players were playing outside the Drayson Centre on Thursday morning. Suddenly they heard a strange sound，” said Crawford， an official of the Loma Linda Fire Department. 　　A similar event happened last Saturday in Oakland， California. Early in the morning， an ice ball dropped into a field at Bushrod Park and made a hole up to 2 feet wide. Luckily， no one in the park was injured （受伤的）. 　　One theory （理论） is the ice was dropped from planes. But there’s little direct support for that. A. few experts have suggested there may be other causes of similar ice falls， perhaps even global warming. 课时过关 返回 目录 课时精讲 　　Stories about dropping ice go back for centuries. They didn’t begin to receive serious scientific attention until a few years ago， however， when Spain was attacked by a dozen large ice balls in 2000. 　　Scientist Jesus Martinez-Frias in Madrid and his team have collected reports of forty cases around the world since 1999 of puzzling falling ice. He thinks the ice forms in the air by a process similar to the formation of hail （冰雹） inside storms but without a storm. 课时过关 返回 目录 课时精讲 　　Martinez-Frias believes global warming is causing the troposphere （对流层） to rise. This means the roof of the troposphere is forced to a greater height， where it cools more than normal. Thus， the temperature difference between warm and cold air in the troposphere produces strong up-and-down winds that repeat the hail-formation process， without a storm. 课时过关 返回 目录 课时精讲 （　B　） 1.What took place on Thursday morning？ A. A fitness centre caught fire. B. A big ice ball fell into Loma Linda. C. There was heavy rain in Loma Linda. D. Two tennis players were hit by an ice ball. B 课时过关 返回 目录 课时精讲 （　A　） 2.What is the similarity between the two events in California？ A. No one was injured. B. No building was destroyed. C. Both were seen by Crawford. D. Both caused a large number of holes. A 课时过关 返回 目录 课时精讲 （　C　） 3.What does the underlined word “formation” mean？ A. Meaning. B. Pollution. C. Development. D. Degree. （　A　） 4.What can we infer from the passage？ A. Global warming is probably the cause of ice falls. B. Dropping ice often happens in Spain in recent years. C. It is very common to see falling ice around the world. D. Dropping ice is most likely to be produced by planes. C A 课时过关 返回 目录 课时精讲 （　C　） 5.From which is the passage probably taken？ A. A physics textbook. B. A health magazine. C. A science magazine. D. A travel guide. C 课时过关 返回 目录 课时精讲 　　第二节　阅读短文，根据短文内容从A、B、C、D四个选 项中选择最佳答案。 　　Fast fashion has grown rapidly in recent years， taking advantage of people’s love for trendy clothes. Today， fast fashion is a $150.82 billion （about 1.1 trillion yuan） industry—up 10.74 percent from 2024， according to Uniform Market， a US leading e-commerce platform. 课时过关 返回 目录 课时精讲 　　However， this growth comes with serious environmental problems， including carbon emissions （碳排放）. To keep costs low， the fast fashion industry uses synthetic materials （合成材 料） like polyester （聚酯纤维） to make clothes. Polyester can create three times more carbon emissions than cotton， leading to serious air pollution. 课时过关 返回 目录 课时精讲 　　What’ s worse， the rapid changes in fashion trends have created a “throwaway” culture that results in huge amounts （大 量） of waste. When synthetic materials end up in landfills （垃圾 填埋场）， they stay there for hundreds of years， causing soil damage （土壤破坏） and polluting groundwater. 　　In addition to using cheap but harmful materials， fast fashion also reduces costs by taking advantage of its workers. According to the George Washington University in the US， there are around 75 million factory workers in the fast fashion industry worldwide. But fewer than 2 percent earn a living wage （工资）. 课时过关 返回 目录 课时精讲 　　The need to solve these problems has made sustainable （可持 续的） fashion more important than ever. First introduced in the 1990s， this idea refers to clothing that is made ethically （合乎道 德地） and is environmentally friendly. It looks at the whole life of a product， including how it is made， used， and thrown away. 　　“There is no beauty in the finest cloth if it makes hunger and unhappiness，” said Indian social activist （社会活动家） Mahatma Gandhi. His words remind us of the hidden costs behind the fast fashion industry. True beauty lies in clothing made with care， without harming people or the planet. 课时过关 返回 目录 课时精讲 （　B　）1.According to the passage， how much has the fast fashion industry grown from 2024？ A. 2％. B. 10.74％. C. 15.8％. D. 20％. B 课时过关 返回 目录 课时精讲 （　C　）2. Why does the author mention polyester in Paragraph 2？ A. To show it is cheaper than cotton. B. To explain why fast fashion is popular. C. To emphasize its environmental harm. D. To suggest it improves clothing quality. C 课时过关 返回 目录 课时精讲 （　A　）3. What does the underlined word “‘throwaway’ culture” in Paragraph 3 refer to ？ A. A trend of quickly discarding unfashionable items. B. A habit of donating old clothes. C. A system for recycling materials. D. A preference for handmade clothing. A 课时过关 返回 目录 课时精讲 （　D　）4. What is the main purpose of the passage？ A. To advertise sustainable fashion brands. B. To explain how to reduce carbon emissions. C. To compare different clothing materials. D. To criticize the environmental and social costs of fast fashion. D 课时过关 返回 目录 课时精讲 （　B　）5. Fewer than 2％ of fast fashion workers earn a living wage. What can we infer about the working conditions in this industry？ A. Most workers are highly paid and satisfied with their jobs. B. The industry prioritizes （优先考虑） low production costs over fair wages. C. Fast fashion brands focus on improving workers’ benefits. D. Governments strictly regulate wages in the fashion industry. B 课时过关 返回 目录 课时精讲 $