Unit 1 Section A Grammar Focus(4a ～ 4c ) 课件 2026-2027学年人教版英语九年级上册

该初中英语课件聚焦现在完成时、一般过去时及used to do结构，通过“家乡20年变化”主题的Think and Talk对话导入，引导学生从情境感知过渡到语法规则学习，构建“情境-规则-练习”的学习支架。 其亮点在于以真实生活话题为载体，通过对比分析两种时态用法培养思维品质，结合4a动词辨析、4b对话填空、4c语篇填空的分层练习提升语言能力。如4c贵州交通变化语篇既巩固语法又联系实际，助力学生在应用中掌握知识，也为教师提供清晰的教学路径。

Unit 1 The Changing World The Changing World Section A Grammar Focus(4a ~ 4c ) What changes have taken place around you ? Think and Talk We talked about changes of a village over the last 20 years. What has changed there ? Let’s go over them. Think and Talk In your opinion, what has changed the most in your hometown over the last 20 years ? I think the work has changed a lot. More of people have come back to live and work here. How has it changed ? We changed the way we farm. Think and Talk In your opinion, what has changed the most in your hometown over the last 20 years ? The farming. We grow tons of vegetables and fruit. How has it changed ? We have large high-tech greenhouses. Think and Talk In your opinion, what has changed the most in your hometown over the last 20 years ? We changed how to sell the local products. How has it changed ? We now sell them in large cities, sell them to the tourists, or sell them online. Think and Talk In your opinion, what has changed the most in your hometown over the last 20 years ? We changed our living condition. How has it changed ? We now have new houses. And our village has just built a new hospital and a library. 4a Read the sentences and circle the verbs. He became a good friend of your grandfather about 20 years ago. They haven't seen each other for ages! We used to have to travel far to see a doctor. Our village has just built a new hospital. Many people used to work in big cities. Now, more of them have come back to live and work here. Pay attention to the verb tenses. the simple past (一般过去时) the present perfect tense (现在完成时) Grammar Focus the present perfect tense (现在完成时) 用 法 过去发生的动作对现在产生的影响 we've changed the way we farm. Our village has become a tourist attraction. 从过去持续到现在的状态/动作 I have lived here for five years. She has been a teacher since 2010. 构 成 have / has + 动词过去分词 Grammar Focus the present perfect tense (现在完成时) 句 型 肯定句 We've changed the way we farm. Our village has become a tourist attraction. 否定句 主语 + 助动词 ( _ ) + done + 其它. We haven’t changed the way we farm. Our village hasn’t become a tourist attraction. 主语 + have / has + _ + done + 其它. not have / has Grammar Focus the present perfect tense (现在完成时) 句 型 一般疑问句 Have you changed the way we farm ? Has your village become a tourist attraction? 特殊疑问句 助动词 ( _ ) + 主语 + done + 其它 ? What has changed the most in your hometown in the last 10 years ? How has it changed ? 特殊疑问词 + 一般疑问句? Have / Has 肯定答复: 否定答复: Yes, 主语 + have / has. No, 主语 + haven’t. No, 主语 + hasn’t. Grammar Focus the simple past (一般过去时) 用 法 表示过去发生的动作 we planted many bushes and trees on the mountains last year. 表示过去的情况或状态 The mountain was covered with sand in the past. 表示过去的习惯,经常做的事情 villagers grew a few vegetables on a small farm every year . 构 成 主语 + 动词过去式 + 其它。 Grammar Focus the simple past & the present perfect tense 用法区别 item the present perfect tense the simple past 用法 例句 过去发生的动作对现在产生的影响 从过去持续到现在的状态/动作 It has also improved lives. Our village has become a tourist attraction. 表示过去发生的动作 表示过去的情况或状态 表示过去的习惯,经常做的事情 The government provided support too. At the beginning, we worked by hand. Later, we had machines to help. Grammar Focus used to do . used to do sth. 过去常常做某事,(暗含现在不做了) The mountain used to be covered with sand. used to be. 表示过去持续的状态,(暗含现在不是该状态了) Our village used to be poor and dirty. There used to be. 表示曾经有,(暗含现在没有了) There used to be sandstorms all the time in our village. Grammar Focus use其它用法 be used to doing sth. 习惯 / 适应做某事 The villagers are used to growing tons of fruit and vegetables . be used to sth. 习惯/适应某物 The villagers are used to large, high-tech greenhouses. be used to do sth. 被用来做某事 The large, high-tech greenhouses are used to grow fruit and vegetables. use sth to do sth. The villagers use large, high-tech greenhouses to grow fruit and vegetables. 用某物做某事 4b Complete the conversation with the correct forms of the verbs in brackets. A: _ you _(be) to the new library yet? B: No, I _(not know) there was a new library. When did it _ (open) ? A: It _ (open) last Friday. I _ (go) there with my grandpa on Saturday night. B: _ you _ (like) it? A: Of course! It's the most high-tech library I _ ever _ (visit). B: Oh, what _ you _ (see) there? A: There are sections with books about science and Chinese culture, as well as a huge section with children's books. I also _ (read) some digital books on the computer. My grandpa _ (listen) to some audio books because he can't see well. B: Cool! I _ (bring) my little brother there tomorrow. Have been didn’t know open opened went Do like have visited did see read listened will bring 4b Let’s learn the conversation. A: Have you been to the new library yet? B: No, I didn’t know there was a new library. When did it open ? A: It opened last Friday. I went there with my grandpa on Saturday night. B: Do you like it? A: Of course! It's the most high-tech library I have ever visited. B: Oh, what did you see there? A: There are sections with books about science and Chinese culture, as well as a huge section with children's books. I also read some digital books on the computer. My grandpa listened to some audio books because he can't see well. B: Cool ! I will bring my little brother there tomorrow. have been to sp. have gone to sp. How to describe the library according to 4b General idea The kinds of books Activities It is the most high - tech library I have ever visited. There are sections with books about science and Chinese culture, as well as a huge section with children's books. Read the digital books on the computer Listen to the audio books 4c Complete the passage with the correct forms of the verbs in brackets. In the past, it _ (be) difficult to travel in Guizhou. In many places, there used to _ (be) no bridges to cross mountains and rivers, and most roads were just dirt tracks. This _ (make) it difficult for locals to bring products to the market or to develop industry. Now great changes _ (take) place. The government _ (build) thousands of kilometres of highways, railways, and wide roads. It has also built many bridges and tunnels. A journey that used to _ (take) a day now takes only a few hours. As a result, the lives of local people _ (improve). They are much richer and happier than they once _( ). was be made have taken has built take have improved were Why are local people richer and happier than before? 4c Complete the passage with the correct forms of the verbs in brackets. In the past, it was difficult to travel in Guizhou. In many places, there used to be no bridges to cross mountains and rivers, and most roads were just dirt tracks. This made it difficult for locals to bring products to the market or to develop industry. Now great changes have taken place. The government has built thousands of kilometres of highways, railways, and wide roads. It has also built many bridges and tunnels. A journey that used to take a day now takes only a few hours. As a result, the lives of local people have improved. They are much richer and happier than they once were . there used to be there used to be no make it adj for sb. to do sth. bring sth. to sp. take place Unit 1 Thank You ! Thank You ! $