Unit 8 中考重点题型提升训练-【考出好成绩】2025-2026学年新教材八年级上册英语课时分层提优课件PPT（冀教版2024）

该初中英语课件围绕“环境保护”主题，以冰川融化等环境问题为核心，通过完形填空引入主题，结合选择题、阅读理解（如Green Middle School学生环保行动）、阅读表达（Sagarika环保故事）等，构建从语言输入到输出的学习支架，帮助学生逐步掌握主题相关词汇、语法及语用能力。 其亮点在于融合语言能力与环保主题，通过词汇辨析（如“raise”与“rise”用法）、语法练习（比较级“the warmer, the faster”）提升语言理解与表达能力，结合真实情境培养分析解决问题的思维品质，融入中国学者环保研究体现文化意识。采用课时分层与大单元整合，学生能提升语言运用和环保意识，教师可获得系统同步练习素材，提高教学效率。

1 Unit 8 Protecting the environment Understanding cultures World Environment Day 2 I. 完形填空。 Melting Ice Sheets Ice sheets on Earth have been melting, breaking up,and disappearing. The melting of ice sheets over the past century has contributed to a 10-25 cm rise in global sea 1 .If the Antarctic ice sheets were to break up,it would 2 global sea levels by almost six meters.If both the Arctic and Antarctic ice sheets were to melt,the result would be a sea level rise of nearly 70 meters.And many countries would be under the 3 . The ice sheet is the largest reservoir of fresh water,holding 70 percent of the world's fresh water. 4 ,the melting of ice sheets means that millions of people will face the threat off earthquakes,floods,droughts and the 5 of drinking water. Hurricanes and typhoons have become stronger and longer-lasting over the past 30 years due to global warming.The 6 the weather is, the faster ice sheets melt.It's reported 7 ice sheets may melt completely by 2035. As is known to all,the melting of ice sheets can make some deadly 8 return, some kinds of animals 9 ,and 50 billion tons of methane (甲烷 )release.How terrible it is! What should we do to stop the melting and avoid the happening of disasters? After studying the ice sheets in Qilian Mountains,Chinese scholars pointed out that 10 the natural climatic factors,the other main causes of ice sheets melting were overpopulation, deforestation and overuse of groundwater. Therefore,the population should be controlled, forest and groundwater resources should be protected. 1.A.food B.levels C.animals D.waves 2.A.raise B.rise C.climb D.jump 3.A.ground B.river C.sea D.ice 4.A.But B.And C.Unless D.However 5.A.height B.kindness C.length D.shortage 6.A.warm B.warmer C.warmest D.warmth 7.A.that B.which C.who D.whom 8.A.population B.diseases C.economy D.technology 9.A.die for B.die of C.die from D.die out 10.A.but B.besides C.except D.beside ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ 解析：1.“sea levels”表示“海平面”,冰川融化导致海平面上升，符合语境。 2."raise global sea levels”表示“使全球海平面上升”,及物动词接宾语。 3.海平面上升会导致许多国家被“海水” 淹没。 4.前后句表转折，but 后通常不加逗号， however 后则通常用逗号将其与句子其他部分隔开。 5.冰川融化导致饮用水“短缺”,shortage 符合逻辑。 6.“the + 比 较 级，the + 比较级”表示“越……越……”,天气越暖，冰川融化越快。 7."It's reported that...” 表示“据报道……",固定句型。 8.冰川融化可能让致命“疾病”重现，符 合常识。 9.“die out”表示“灭绝”,指部分动物消失。 10.besides 表示“除……之外还有”,表 补充。 Ⅱ.阅读理解。(2025保定期末) Last month,students at Green Middle School found their schoolyard covered with rubbish. Plastic bags,empty bottles and food packaging were everywhere.What's worse,a leaky(漏的)tap near the playground kept wasting water."It's time to make a change,"said Katie,a ninth-grade student. Then the students decided to clean up the schoolyard.First,they picked up all the litter and divided it into three groups:metal,plastic and reusable things.Then,they fixed the leaky tap, saving about 100 litres of water daily.Finally,a truck took the sorted garbage to a recycling factory. To reduce waste,the school made new rules: ·Use reusable water bottles. ·Avoid snacks with too much packaging. ·Turn off lights when leaving classrooms. After three weeks,the amount of garbage dropped by 65%.The school has become much cleaner than before. At a school meeting,Katie said,"It's our duty to protect the earth.The more we do,the better our environment will be.Let's start from small actions today!” 11.What did the students do first during the clean-up? A.They fixed the leaky tap. B.They picked up the litter. C.They sorted the garbage. D.They called a truck. 12. What does the underlined word “reduce”mean? A.Decrease. B.Move. C.Find. D.Use. 13. How much water was saved daily after fixing the tap? A.About 50 litres. B.About 65 litres. C.About 100 litres. D.About 150 litres. ✔ ✔ ✔ 14. What does the text mainly tell us? A.We should learn how to sort different garbage. B.Water is very important. C.School rules help the environment. D.Small actions can make a big difference. 15. What type of writing is this text? A.A travel report. B.A student's diary. C.A call to action. D.A science story. ✔ ✔ Ⅲ .阅读表达。 At the age of 10,Sagarika Sriram started reading newspaper stories.One story was about sharks.They had plastic( 塑 料 )in their stomachs. Sagarika knew she needed to do something.First, she joined a green group,which organized clean-up activities in Dubai.That's her home city.“The green group helps me understand what a person can do and how I can really make a difference,"she says. Then Sagarika set up a group called Kids for a Better World.Its goal(目标 )is to fight climate( 气 候 )change.Nearly 10,000 youths around the world have joined the club.Kids for a Better World is for people aged 8 to 16 and teaches them about what they can do to deal with climate change,such as growing food,planting trees or collecting old things. Dubai is a desert city.Her city is facing the risks of rising temperatures and less water.She believes young people can bring attention to these environmental challenges. Though what Sagarika does is all about small actions,she has big plans.She dreams of encouraging(鼓励)more people to fight for a greener planet. 16. When did Sagarika start reading newspaper stories? 17. Did Sagarika learn anything meaningful from the green group? At the age of 10./When she was 10. Yes./Yes,she did. 18. How many youths join the Kids for a Better World? 19. As a desert city,what risks is Dubai facing? 20. What is Sagarika's dream? Nearly 10,000 youths. The risks of rising temperatures and less water. Encouraging more people to fight for a greener planet. IV.补全对话。根据下面对话中的情境，在每个空白处填入一个适当的语句， 使对话恢复完整。 A:Hi,Jill.21. ______________________________________________________________ B: I'm reading a book about the future. A: Sounds cool.22.________________________________________________________ B: Well,cities willbe more polluted.There will be fewer trees and the environment will be in great danger. A:23. Will we have to move to other planets? B: Maybe.But I still want to live on the beautiful earth. What are you reading? So what will the future be like? That sounds bad! A: Me too.It's also my dream. 24.____________________________________________ B: I think we can begin with small things.For example,we can use less water and plant more trees.Everyone should play a part in saving the earth. A: I think so.Could I have a look at this book? B:25.____________________________________________ I'll bring it to you tomorrow. A: Thank you. B: Not at all. Then what can we do? Of course. $