Unit1Section A 2a-2d课件2026-2027学年人教版英语九年级上册

该初中英语课件围绕“家乡变化的成因、环境挑战及影响”展开，通过图片导入（如“中国·巨变 MADE IN CHINA”）、问题链（“What great changes...?”“What challenges...?”）衔接，从现象讨论到原因分析，再到听力理解与口语表达，搭建递进式学习支架。 其亮点在于融合语言能力与文化意识，通过听力填空（2b/2c表格）、口语对话（2d解决方案对话）提升语言运用，结合中国变化案例增强家国情怀，问题排序任务（给环境问题排序并阐述理由）培养思维品质。采用任务型教学，学生能提升综合语言能力与批判性思维，教师可直接使用系统资源优化教学流程。

Unit One The Changing World Sec A 2a-2d What brings about changes? Review Discuss the changes in 1c.How do you think they happened? 1d Better roads and public transport （The government built new roads.） Improved public services （New hospitals and supermarkets were built in the town.） Hard work of local people （Villagers worked together to build roads, plant trees, and improve their living conditions.） Environmental protection and green projects （People planted many trees on the hills.） How? Great changesn have taken place in Li Rui’s hometown over the years.There are four mian reasons for these amazing inprovements. First, the _______ built _______ __________,so the _____ _______ have better roads and public transport. Second, the government improved ______ _______.Now,________ and _______ were built in the town,making people’s daily lives much more convenient. Third, local people made great progress through their ______ ______. Fourth,people carried out (执行）______ ______ and _____ ______. Thanks to all these efforts,the homentown has turned into a modern and beautiful place. Oral Expression 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. Warm up 中 国 的 变 化 Pre-listening While we have seen such amazing changes in our hometown, achieving them was never easy. What challenges and difficulties do you think people might have faced during this process? Rank the following problems from 1 to 4, with 1 being the worst.Give your reasons. 2a sandstorms difficult environment farmland shortage lack of technology damage the environment makes farming and daily life very hard. can’t grow enough food. is serious, but people can improve it over time. I think the worst one is ...because... 2b Listen to the conversation between George's father and Li Rui's grandfather. Tick the problems mentioned in 2a. While-listening 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 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 long areas huge hand hold machines fewer Listen again and fill in the table. How has the environment affected local lives?（一空一词） 2c trees better Terrible conditions Hard work & green projects Great improvements & good result Bob: I’m amazed by how green your hometown has become! Grandpa: Have you seen the corn fields outside of the town yet? Bob: Yeah! They’re huge! Grandpa: There used to be sandstorms all the time, and the fields were getting smaller and smaller. Then, after one big sandstorm, we decided to do something. Bob: What did you do? Listen and repeat Grandpa: We found a small bush. It had long roots that could hold the soil together. We began planting it in sandy areas. The government provided support too. Bob: Wasn’t it difficult to plant so many bushes? Grandpa: Yes, it was. At the beginning, we worked by hand. Later, we had machines to help. We have planted many bushes and trees since then. There are fewer sandstorms now and the environment is getting better. It has also improved our lives. Everyone has become richer and happier. Post-listening Discuss how the problems in 2b were solved. 2d sandstorms difficult environment farmland shortage lack of technology A: The area used to be covered with sand. B: What did they do to solve this problem? A: They planted bushes and trees. The land has become ... Discuss how the problems in 2b were solved. 2d A: The area used to be covered with sand. B: What did they do to solve this problem? A: They planted bushes and trees. The land has become ________. B:Did they get any support? A:___________________________________________________. ___________________________________________________ B: How is the envionment now? A:_______________________________________________ ________________________________________________ B:That’s great ! So their hard work really paid off. A:Exactly,and local people’s lives have improved a lot too. Yes,the governmets gave them support and they also used machines to help. There are fewer sandstorms ,and the corn fields are huge.The environment is getting much better. greener Further Thinking • Why did many young people leave their hometown in the past? And why do they come back now? • What can we learn from the great changes of the hometown? • What can we do to keep the environment beautiful? In the past, young people left for cities to find jobs. Now hometowns have developed a lot with more jobs and better lives, so they come back to stay with families. Our country is developing rapidly. Hard work makes our life better and brings more chances for young people. We can plant trees, stop littering and save water. We should also encourage others to live a green life. Great changes come from perseverance. These devoted people have turned deserts into green lands. We should cherish our beautiful home and keep striving ahead. Language points I’m amazed by how green your hometown has become! be amazed by sth. 为固定短语，意为 “对…… 感到惊讶 / 惊叹”。amazed 是形容词，主语通常为人，描述人的感受。 例句：我对我们城市的巨大变化感到惊叹。 I am amazed by the great changes in our city. Language points There used to be sandstorms all the time, and the fields were getting smaller and smaller. used to do sth. / There used to be... 表示过去常常 / 过去曾经存在，暗指现在情况已经发生改变。后接动词原形，只用于描述过去。 例句：我家附近曾经有一条小河。 There used to be a small river near my home. Language points There used to be sandstorms all the time, and the fields were getting smaller and smaller. 比较级 + and + 同一比较级，意为 “越来越……”，用来描述人或事物持续发生变化。单音节形容词直接变化，如 smaller and smaller（越来越小）。 例句：这些树长得越来越高了。 The trees are growing taller and taller. Language points It had long roots that could hold the soil together. 本句中 that could hold the soil together 是定语从句，关系代词 that 指代前文的 roots（物），在从句中作主语，用来修饰前面的名词。 例句：我喜欢有关自然的书籍。 I like the books that are about nature. Language points Wasn’t it difficult to plant so many bushes? It is/was + 形容词 + to do sth.（此处为否定疑问句形式），it 作形式主语，真正的主语是后面的动词不定式 to do，表示 “做某事是…… 的”。 例句：学好英语很容易。 It is easy to learn English well. Language points We have planted many bushes and trees since then. since then 意为 “从那以后”，是现在完成时的标志性时间状语。现在完成时结构：主语 + have/has + 动词过去分词，强调动作从过去开始，持续到现在。 例句：从那以后，他就一直住在这里。 He has lived here since then. Language points Exercise 1 2 3 4 —I ______ the beautiful scenery of my hometown. A. amaze by B. am amazed by C. am amazing by 这里使用触发器原理，触发器在ABC选项上。 使用方法：移动鼠标，看到小手即可点击 34 1 2 3 4 2. There ______ a big lake in this village many years ago. A. used to be B. used to have C. was used to live 这里使用触发器原理，触发器在ABC选项上。 使用方法：移动鼠标，看到小手即可点击 35 1 2 3 4 3. The wind is blowing strongly, and the sand on the ground is becoming ______. A. more small B. smaller and smaller C.small and small 这里使用触发器原理，触发器在ABC选项上。 使用方法：移动鼠标，看到小手即可点击 36 1 2 3 4 4. This is the tree ______ can stop the sand from moving. A. who B. what C. that 这里使用触发器原理，触发器在ABC选项上。 使用方法：移动鼠标，看到小手即可点击 注意：大小通吃的意思是when既可以回答大的时间点，也可以回答小的时间点 37 1 2 3 4 5. We have planted lots of trees ______. Now the air is fresh. A. just now B. since then C. yesterday 这里使用触发器原理，触发器在ABC选项上。 使用方法：移动鼠标，看到小手即可点击 38 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 Homework Homework 1.Read the conversation about hometown changes three times aloud. 2.Make 5 sentences with the sentence structure: used to… 1.Write a short passage (about 50 words) about one change in your own town. 2.Try to use used to and the Present Perfect tense to describe the transformation. Must-do Choose-to-do 懒人笔记资料库制作,资料已申请版权,请认准懒人工作室购买,请勿侵权,请勿私自传播,谢谢!!! 公众号:懒人笔记资料库 wx助理号:yyyz1168 See you! Thanks! null 65147.99 $