Unit1SectionB(3a-3d)课件2026-2027学年人教版九年级英语上册

该初中英语课件围绕“变化如何影响我们”主题，聚焦used to句型及过去与现在的变化对比。课堂导入通过“Now”与“In the past”对比居住、交通、环境等具体情境，搭建新旧知识联系的学习支架。 其亮点在于采用词根词缀拆解速记单词，如junior（jun=young+-ior）、discussion（dis-+cuss+-ion），培养学习能力。阅读后表格填空与快速复述法，提升语言能力和思维品质。分层作业满足不同学生需求，小结系统梳理语法、词汇和写作模板，教师可高效开展差异化教学，助力学生提升综合语言运用能力。

Unit 1 The Changing World Section B 3a-3d How changes influence us？ 目录 新单词预习 Vocabulary 课堂导入 Lead in 新知学习 Knowledge 课堂巩固练习题 Exercise 课堂小结 Summary 分层课后作业 Homework Vocabulary 词根词缀拆解速记 1. junior /ˈdʒuːniə(r)/adj. 低年级的；初级的 词根：jun = young 年轻 后缀：-ior 形容词比较后缀，表 “更… 的” 直译：年纪更小的 → 低年级、初级 同根词：juvenile adj. 青少年的 2. flat /flæt/n. 公寓；adj. 平坦的 词根：flat = 平 逻辑：本义平坦的； 楼房里单层平整居所 → 公寓 派生词：flatten v. 使变平 3. discussion /dɪˈskʌʃn/n. 讨论 拆分：dis-（分开）+ cuss（言说）+ -ion（名词后缀，表动作） 拆解记忆：分开各自发言 → 讨论 变形：discuss v. 讨论 → discussion n. 讨论 4. aspect /ˈæspekt/n. 方面 词根：spect = see 看 前缀：a-（ad - 变体，朝向） 直译：朝向某一视角去看 → 角度、方面 同根一串记： respect 尊敬（反复注视） inspect 检查（往里细看） suspect 怀疑（偷偷打量） 翻译句子： The junior students held a discussion in their flat about every aspect of the plan. 中文翻译： 低年级学生在公寓里讨论了方案的各个方面。 Lead in Now People live in new tall flats. People stay at home alone and seldom chat with neighbours. In the past People used to live in small old houses. Neighbours used to talk and play together every day. In the past People used to walk or ride old bikes. There used to be few buses and no underground. Now People take buses, underground or drive cars. Many people also ride shared electric bikes. In the past There used to be many trees and clean rivers. The air used to be fresh. Now There are more cars, so there is much air pollution. Some rivers are dirty, but we plant more trees to fix it. 3a Read the text. What stays the same in the student’s life? Changes in My Life Now that I am older, my life is different from when I was in primary school. For example, my primary school was near my home, so I used to walk to school with my parents. Now my junior high school is farther from home. I take a bus every day with my friends. My home has changed too. My family used to live in a small flat, but now we have moved to a much larger one. My grandma lives with us now as well. She has her own room and her own TV Set, I am glad that I get to see her every day. The way I study is also different. I have become more confident in my studies and often attend group discussions. I enjoy studying with my friends. It’s amazing how much we have achieved together. My life has changed in many ways, but one thing has stayed the same: the feeling of love and happiness shared by my family. but one thing has stayed the same: the feeling of love and happiness shared by my family. The feeling of love and happiness shared by my family. 3b Complete the table with the information from the text. Aspect Past Present school home study Primary school was near home; used to walk to school with parents. Junior high school is farther from home; takes a bus to school every day with friends. Lived in a small flat. Moved to a much larger flat; grandma lives with the family and has her own room and TV set. Has become more confident in studies; often attends group discussions and enjoys studying with friends. Was less confident in studies and studied alone. 快速复述法（短时记忆 + 流畅背诵） 1.总起 + 上学变化 小时候小学离家近,过去和爸妈走路上学； 现在初中很远，每天和朋友坐公交。 2.居住家庭变化 以前住小公寓,现在搬进大房子； 奶奶同住,有独立房间电视，每天能见到奶奶很开心。 3.学习方式变化 现在学习更自信,常参加小组讨论,喜欢和同学一起学习,收获很多。 4.收尾不变的点 生活改变很多,但家人之间的爱与幸福感从来没变。 3c home school study neighbourhood transport environment Think back to when you were in primary school. In what ways has your life changed? Make notes in a table like the one in 3b. Choose three changes. Write a short passage about them. End with one thing that has stayed the same. Aspect Past Present neighbourhood transport environment 3d People lived in small old houses; neighbours talked and played together every day. People live in new tall flats; people stay at home alone and seldom chat with neighbours. People walked or rode old bikes; there were few buses and no underground. People take buses, underground, drive cars or ride shared electric bikes. Many trees, clean rivers and fresh air. Much air pollution, some dirty rivers; people plant more trees to make it better. Changes in My Hometown My hometown has changed a lot over the years. First, let’s talk about our neighbourhood. People used to live in small old houses. Neighbours used to chat and play together every day. Now we live in tall new flats, and people seldom talk with neighbours. Transport is quite different too. People used to walk or ride old bikes to go out. There were only a few buses and no underground. Now we can take buses, underground, drive cars or ride shared electric bikes easily. The environment also has big changes. There used to be lots of tall trees and clean rivers, and the air was fresh. Now more cars bring air pollution, and some rivers become dirty, though we plant new trees to improve it. Many things around me have changed greatly, but one thing stays the same: I still love my warm hometown deeply. Exercise 一、用 used to / 一般现在时填空 1.I _________________ (walk) to school when I was little. Now I __________________ (take) the bus. 2.People _________________ (live) in small old houses in the past. Now they __________________ (live) in tall flats. 3.There ______________________ (be) few cars before. Now there __________________ (be) lots of cars. 4.I ______________________ (not / join) group discussions before. Now I often __________________ (talk) with classmates. used to walk take used to live live used to be are didn’t use to join talk 二、英汉互译 used to play together ______________________ group discussions ______________________ 我过去住在小公寓。_________________________ 一件不变的事 ________________________________ 过去一起玩耍 小组讨论 I used to live in a small flat. one thing that stays the same 三、句型转换 1.I used to ride old bikes.（改为否定句） 2.My grandma lives with us now.（用 in the past 改写过去句） 3.People used to chat with neighbours every day.（一般疑问句） I didn’t use to ride old bikes. My grandma didn’t use to live with us. Did people use to chat with neighbours every day? Summary 1. 核心语法：used to 句型（描述过去和现在对比） 1）used to do sth. 过去常常做某事（现在不做了） 肯定句：主语 + used to + 动词原形 I used to walk to school. 我过去走路去上学。 否定句：主语 + didn’t use to do /used not to do I didn’t use to live in a small flat. 一般疑问句：Did + 主语 + use to do…? Did you use to play with neighbours? 2）对比现在：一般现在时，标志词 now Now I take a bus to school. 2. 重点词汇 1）名词（对比维度）： neighbourhood 街区，transport 交通， environment 环境，aspect 方面，discussion 讨论，flat 公寓 2）形容词：junior 初级的，confident 自信的，fresh 新鲜的 3）短语：group discussions 小组讨论，share happiness 分享快乐 3. 写作结构：变化类作文模板（三段式） 开头总起：My life is different from when I was in primary school. 中间分三点对比（Past vs Present），用 For example /too/also 分层 结尾转折：Many things have changed, but one thing stays the same: … 4. 重点句式 Now that I am older… 随着我长大…… …has changed a lot. … 变化很大 One thing stays the same. 有一件事从未改变 Homework 基础层（学困生，夯实课本） 背诵 used to 肯定 / 否定 / 疑问三种句型； 默写 3a 课文重点句子 5 句； 提高层（中等生，掌握运用） 仿写 60 词小短文 （参考 3a 结构，任选 school/home/study 三个角度）。 拓展层（优等生，综合输出） 完成 3d 正式写作（neighbourhood/transport/environment 三方面，80 词以上）； 额外拓展：用 5 句话说说自己家乡环境过去与现在的变化； 积累 5 个描述变化的加分短语（change a lot, much bigger, more convenient, air pollution, plant more trees）。 $