Unit1知识点-Section A 3a-3d讲义 2026-2027学年人教版九年级英语上册

本初中英语讲义聚焦九年级上册Unit 1 Section A 3a-3d核心内容，围绕“家乡变化”主题梳理关键词汇（如high-tech、greenhouse）、短语（over the last 20 years、tourist attraction）及语法（used to do、现在完成时、must have done），通过例句解析搭建从词汇理解到语法应用的学习支架。 该资料以真实情境为载体，通过“家乡变化”实例巩固现在完成时等语法，提升语言能力。设计中英互译短语和语法对比练习，培养思维品质，综合练习涵盖填空、单选等多题型，课中辅助教师高效授课，课后助力学生查漏补缺，强化知识应用。

九年级英语上册Unit1知识点-Section A 3a-3d讲义 【课文要点】 1. How has life changed in your hometown over the last 20 years? 在过去20年里，你家乡的生活发生了怎样的变化？ - over the last 20 years 在过去的20年里 - e.g. How has life ____________ in your hometown over the last 20 years? 2. It has changed quite a lot! 变化很大！ - quite a lot 相当多，很多 - e.g. It has changed ____________ a lot! 3. Many young people used to work in big cities. Now, more of them have come back to live and work here. 许多年轻人过去在大城市工作。现在，更多的人已经回到这里生活和工作。 - come back 回来 - e.g. Many young people ____________ to work in big cities. - e.g. More of them have ____________ back to live and work here. 4. We've changed the way we farm. 我们改变了耕作方式。 - change the way 改变方式 - farm v. 耕作，种田 - e.g. We’ve ____________ the way we farm. 5. I used to grow a few vegetables on a small farm to sell at the local market. 我过去在一个小农场里种一些蔬菜，在本地市场上出售。 - grow v. 种植 - a few 一些（修饰可数名词） - local market 本地市场 - e.g. I ____________ to grow a few vegetables on a small farm. 6. Now, I have large, high-tech greenhouses. 现在，我有大型的高科技温室。 - high-tech adj. 高科技的 - greenhouse n. 温室 - e.g. Now, I have large, high-tech ____________. 7. There, I grow tons of fruit and vegetables, and sell them in large cities. 在那里，我种植大量的水果和蔬菜，在大城市销售。 - tons of 大量的，许多的 - e.g. I grow ____________ of fruit and vegetables. 8. The new highway and railway must have helped a lot! 新的高速公路和铁路一定帮了大忙！ - highway n. 公路，高速公路 - railway n. 铁路 - must have done 一定做了某事（对过去的推测） - e.g. The new highway and railway ____________ have helped a lot! 9. Our village has become a tourist attraction. 我们的村庄已经成为一个旅游景点。 - tourist attraction 旅游景点 - e.g. Our village has become a ____________ attraction. 10. We can now sell local products to tourists. 我们现在可以把本地产品卖给游客。 - local products 本地产品 - tourist n. 游客 - e.g. We can now sell ____________ products to tourists. 11. We also sell products online to people all over China. 我们也在网上向全国各地的人们销售产品。 - online adv. 在网上 - all over China 全国各地 - e.g. We also sell products ____________ to people all over China. 12. Have these changes greatly improved your lives? 这些变化大大改善了你们的生活吗？ - greatly adv. 极大地 - improve v. 改善，提高 - e.g. Have these changes greatly ____________ your lives? 13. We now have new houses. 我们现在有了新房子。 - e.g. We now have ____________ houses. 14. Our village has just built a new hospital and a library. 我们村刚刚建了一所新医院和一个图书馆。 - library n. 图书馆 - e.g. Our village has just ____________ a new hospital and a library. 15. Together you are building a new socialist village. 你们在一起建设社会主义新农村。 - socialist adj. 社会主义的 - e.g. Together you are building a new ____________ village. 【语法点拨】 1. used to do 过去常常做某事 - Many young people used to work in big cities. - I used to grow a few vegetables on a small farm. 2. 现在完成时 (have/has + 过去分词) 表示过去发生的动作对现在的影响 - More of them have come back to live and work here. - We have changed the way we farm. - Our village has become a tourist attraction. - Our village has just built a new hospital. 3. must have done 表示对过去情况的肯定推测，“一定做了某事” - The new highway and railway must have helped a lot! 4. 可数名词与不可数名词的修饰词 - a few + 可数名词复数：a few vegetables - tons of + 可数/不可数名词：tons of fruit and vegetables 【高频短语汇总】中英互译 1. over the last 20 years __________ 2. __________ 在过去的20年里 3. quite a lot __________ 4. __________ 相当多 5. come back __________ 6. __________ 回来 7. local market __________ 8. __________ 本地市场 9. tons of __________ 10. __________ 大量的 11. tourist attraction __________ 12. __________ 旅游景点 13. local products __________ 14. __________ 本地产品 15. all over China __________ 16. __________ 全国各地 17. have/has done __________ 18. __________ 已经做了某事 19. must have done __________ 20. __________ 一定做了某事 【综合练习】 一、根据句意和首字母提示填空 1. It has changed q________ a lot! 2. Many young people u________ to work in big cities. 3. Now, more of them have c________ back. 4. We've c________ the way we farm. 5. Now, I have large, high-tech g________. 6. I grow t________ of fruit and vegetables. 7. Our village has become a tourist a________. 8. We also sell products o________. 二、根据汉语意思完成句子 1. 在过去20年里发生了很大变化。 It has changed quite a lot ________ the last 20 years. 2. 许多年轻人过去在大城市工作。 Many young people ________ to work in big cities. 3. 更多的人已经回来了。 More of them have ________ back. 4. 我们改变了耕作方式。 We've ________ the way we farm. 5. 我过去在小农场里种蔬菜。 I ________ to grow vegetables on a small farm. 6. 现在我有大型的高科技温室。 Now, I have large, ________ greenhouses. 7. 我们村已经成为一个旅游景点。 Our village has become a ________ attraction. 8. 我们在网上向全国各地销售产品。 We sell products ________ to people ________ over China. 9. 我们村刚刚建了一所新医院和一个图书馆。 Our village has just ________ a new hospital and a ________. 10. 这些变化极大地改善了你们的生活吗？ Have these changes greatly ________ your lives? 三、单项选择 ( ) 1. Many young people used ________ work in big cities. A. to B. for C. with D. of ( ) 2. More of them have come ________ to live and work here. A. back B. up C. down D. in ( ) 3. I ________ to grow vegetables on a small farm. A. use B. uses C. used D. using ( ) 4. Now, I have large, high-tech ________. A. greenhouses B. green house C. greenhouse D. greenhouses ( ) 5. The new highway and railway must ________ helped a lot! A. has B. have C. had D. having ( ) 6. Our village has become a tourist ________. A. attract B. attracted C. attracting D. attraction ( ) 7. We sell products online to people ________ all over China. A. on B. in C. at D. for ( ) 8. Our village has just ________ a new hospital. A. build B. builds C. built D. building 四、用所给词的正确形式填空 1. Life in our hometown ________ (change) quite a lot over the last 20 years. 2. Many young people used to ________ (work) in big cities. 3. More of them ________ (come) back to live and work here. 4. We ________ (change) the way we farm. 5. I used to ________ (grow) vegetables on a small farm. 6. Our village ________ (become) a tourist attraction. 7. Our village has just ________ (build) a new hospital. 8. These changes ________ (great) improved our lives. 【答案】 一、 1. quite 2. used 3. come 4. changed 5. greenhouses 6. tons 7. attraction 8. online 二、 1. over 2. used 3. come 4. changed 5. used 6. high-tech 7. tourist 8. online, all 9. built, library 10. improved 三、 1. A 2. A 3. C 4. A 5. B 6. D 7. B 8. C 四、 1. has changed 2. work 3. have come 4. have changed 5. grow 6. has become 7. built 8. greatly 五、 1. used, come 2. used, high-tech 3. local, tourists 4. hospital, built 1 学科网（北京）股份有限公司 $