Unit 1 Section A 2a-2d【精讲课件】2026-2027学年九年级英语上册同步精品课件（新教材人教版）

该初中英语课件围绕“环境变化”核心主题，涵盖沙尘暴、耕地短缺等词汇及相关句型。通过观看沙漠植树视频导入，结合自由讨论连接上一课李瑞家乡变化，搭建从已知到环境问题分析的学习支架。 其亮点在于以思维品质培养为核心，通过问题排序（如2a给环境问题排序并阐述理由）、对比过去与现在环境分析解决措施，提升逻辑思维。结合中国荒漠化治理实例（如民勤种树项目）渗透情感态度，增强环保意识与家国情怀。采用小组合作整理听力信息、任务型填表等方法，助力学生提升语言运用与问题解决能力，为教师提供结构化活动设计，便于高效教学。

Unit One The Changing World What brings about changes? Section A 2a-2d Thinking Quality Learning Ability Emotional Attitude Language Ability Learning Objectives Master key words about sandstorms and use target sentences to discuss environmental changes coherently. Realize the value of environmental protection and build positive attitudes towards ecological development. Sort listening information via group cooperation to improve information analysis and learning skills. Compare past and present environment to analyze problems and conclude practical improvement methods logically. 中 国 的 变 化 What great changes have taken place? It took half a day to reach the town. With the new roads, it takes only an hour. Going to school by bus took 40 minutes over rough roads Going to school takes only 15 minutes They used to to travel to see a doctor. The town has built a new hospital. They didn't have any good places for shopping. They now have a supermarket down the street. The hills were covered with sand. They are now covered with beautiful trees. Li Rui is showing the changes of his hometown. changes in shopping changes in medical care changes in transpotation changes in environment What changes have taken place in Li Rui’s hometown? Watch a video What did you see in the video? Desert / trees / people planting trees... Free talk about the video. Why do people plant trees in the desert? To stop sandstorms To make the land green Free talk about the video. Yes! People plant trees to fight against sandstorms and make the land green again. This is exactly what we are going to talk about today—how people solve environmental problems and bring changes to their hometown. In the last lesson, we learned about Li Rui's hometown. What changes did we talk about? Today, we will learn more about the environmental changes. Li Rui's grandfather will tell us how they made the hills green. Let's find out! What are these signs stand for? sandstoms difficult environment farmland shortage lack of technology Rank the following problems from 1 to 4, with 1 being the worst. Give your reasons. 2a I think... is the worst because... I think sandstorms are worst, because they ruin crops and pollute our living air. sandstoms Poor water and dry soil stop crops from growing well and cut down harvests. difficult environment I think farmland shortage is the worst because Less farmland leads to less food. farmland shortage I think lack of technology is the worst because old farming wastes energy and makes it hard to get high crop yields. lack of technology What problems in 2a did they mention? sandstoms difficult environment farmland shortage lack of technology Listen to the conversation between George’s father and Li Rui’s grandfather. What problems in 2a did they mention? 2b George’s father Li Rui’s grandfather sandstoms difficult environment farmland shortage What action should be taken to solve these problems? Think and share 2c Listen again and fill in the table. How has the environment affected local lives? Past • There used to be ______________ all the time, and the __________were getting smaller and smaller. • Locals worked by _______________. Action • Locals found a bush. It had _______________ roots that could _____________ the soil together. • They began planting it in sandy ___________, with the government’s support. • They had _____________________ to help. Present • The corn fields are ________________. • They have planted many bushes and ________________ since then. • There are ___________ sandstorms now and the environment is getting _________. • It has improved local lives. sandstorms fields hand long hold areas machines bigger trees fewer better Terrible conditions Hard work & green projects Great improvements &good result Discuss how the problems in 2b were solved. Sandstorms → They found a bush whose roots could hold the soil together. Farmland shortage → They planted the bush in sandy fields with the government's support. Difficult environment → Everyone worked together and the land has become green. 2d What change do you want to see in your hometown? What can you do to help? Clean the street. Let’s thlk. plant more trees Protect the environment What else can we do to help solve this problem? What else can we do to help solve this problem? Save paper to cut down tree cutting. 节约用纸，减少树木砍伐。 Plant small trees or saplings every spring. 每年春天栽种小树苗。 Tell friends the harm of desertification. 向身边朋友宣传荒漠化危害。 Collect used paper for recycling. 回收废旧纸张，践行资源再利用。 What can we learn from the changes in Liu Rui’s grandpa’s hometown? Every big change starts with a small step. The future of our hometown is in our hands. everyone’s efforts + = government’s support Great changes come from perseverance. These devoted people have turned deserts into green lands. We should cherish our beautiful home and keep striving ahead. A great project to solve the problem of desertification in China Discussion Transportation government support people’s hard work Li Rui's hometown Shopping Medical care Environment Changes in Li Rui’s hometown. Past (sandstorms, smaller fields ) Action (a bush with long roots, Planted,First by hand, later with machines.) Present (fields are huge; fewer sandstorms; environment getting better; people are richer and happier.) 3a Summary New words rough, sandstorm, shortage, farmland, lack, bush, root, soil, sandy, government, support, corn Expressions bring about, be covered with Sentences 1.It took half a day to reach the town. 2. We used to have to travel far to see a doctor. 3. The hills were covered with sand. 一、用括号内所给单词的适当形式填空。 1.The farmers turned the ______（sand） area into a green forest. 2.The village used to have a ________（short） of clean water. The village used to be ______（short） of clean water. 3.Thank you for __________（support） me in my work all the time. 4.Look！There are many trees and _______（bush） in the garden over there. 5.We should use ______（few） plastic bags when shopping to have a ______（good） living environment. sandy shortage short supporting bushes fewer better Exercise 32 二、用方框中所给单词的适当形式填空。 sandstorm hill corn soil government 6.If you want to plant flowers,you need some _____ and water. 7.The ___________ is trying to improve people’s living conditions. 8. ______ is one of the most important grains in the world. 9. The Qinling Mountains（秦岭） help keep most ___________ away from Sichuan every year. 10.The ____ is not very high,so I think I can climb to the top. soil government Corn sandstorms hill 33 三、 根据汉语意思完成句子,每空一词。 11.耕地短缺曾是这一地区面临的严峻挑战。 _________ ________ used to be a serious challenge in this region. Farmland shortage 12.多年来,水资源也严重匮乏。 There was also a great ____________ ___ water for many years. lack/shortage of 13.在政府的支持下,新的项目随即启动来解决这些问题。 With the _____________ ________,new projects were started to solve these problems. government’s support 34 14.如今,曾经干旱的土地上覆盖着健康的庄稼和树木。 Now,the once dry fields ____ ________ _____ healthy crops and trees. are covered with 15.这些美好的变化为每个人带来了希望与幸福。 These wonderful changes have ________ ______ hope and happiness for everyone. brought about 35 用括号内动词的正确形式填空，完成句子。 02 We _____________ (plant) many trees since then. People are amazed _________ (see) the great changes here. The river is getting __________ (clean) and cleaner. There ______ (use) to be lots of sandstorms here. This is the bush _________ (have) long roots to hold soil to see have planted used cleaner that has 按要求改写句子，每空限填一词。 03 1. I am amazed by its beauty.（改为一般疑问句） ______ ______ amazed by its beauty? 2. There used to be sandstorms here.（改为否定句） There _______ ______ to be sandstorms here. 3.The fields were getting smaller and smaller.（对画线部分提问） ______ ______ the fields getting? 4.It was difficult to plant bushes.（改为同义句） _________ bushes ______ difficult. 5.We have planted trees since then.（对画线部分提问） ______ ______ you planted trees? Are didn’t use How were you Planting was When have Lavf62.3.100 Packed by Bilibili XCoder v2.0.2 $