资源简介

(共19张PPT)
Unit7 When Tomorrow Comes
SectionB (2a-2c)
人教版 八年级上册
Learning Objectives
能够通过回顾已学词汇，观察并归纳反义词的不同构成方式（如添加前缀、词根变化或使用完全不同的词形）；能够通过主动查阅词典，探索并积累更多反义词，拓展词汇量。
01
02
能够结合语境灵活运用本单元所学新词汇进行表达。
03
能够养成通过对比、分类和自主查阅等高效学习词汇的习惯，增强独立积累和掌握词汇的能力
01
Lead - in
Let’s watch!
old
young
fast
slow
poor
rich
fat
thin
Look and say
opposites 反义词
02
Presentation
Write the opposites of the words. Use your dictionary.
2a
1. more ___________ 2. possible ___________
3. better ___________ 4. challenging __________
5. appear ___________ 6. winner __________
7. positive ___________ 8. everywhere ___________
less/fewer
impossible
worse
easy
disappear
loser
negative
nowhere
Can you find any rules
① 加前缀
②合成反义词
③完全不同的单词
dis-
im-
un-
non-
mis-
in-
译为“不 (是)”
“无”“非”等。
加在单词前面 ,
可变为该词的反义词 ,
表示否定意义的前缀
否定前缀
Write the opposites of the words and find out the prefix (前缀).
appear ___________
like ___________
lock ___________
cover ___________
happy ___________
usual ___________
possible ___________
perfect ___________
dependent ___________
correct ___________
dislike
unlock
independent
incorrect
imperfect
unusual
unhappy
uncover
dis-
un-
im-
in-
否定前缀
negative prefix
impossible
disappear
① 加前缀
②合成反义词
②合成反义词
① 加前缀
Match the compound words with their opposites.(配对合成词与其反义词)
everywhere
everyone
everything
anybody
nothing
nowhere
no one
nobody
slow
inactive
empty
expensive
active
happy
cheap
full
Let’s match!
fast
sad
Complete the sentences in 2b with the correct forms of the words in the box.
2b
v.
v.
v.
v.
n.
mentioned
develop
influenced
services
Accept
培养技能
采取步骤
满足公众需求
回避；逃离
plete the sentences with the correct forms of the words in the box.
accept develop influence mention service
He ____________ a plan to learn German, but he didn’t say when he would start.
It is important for young students to ____________ skills that will be valuable in the future.
Asimov’s ideas about robots ___________ many sci-fi writers and even some AI scientists.
China will take steps to improve the public health system to meet the public’s needs for medical and health __________.
____________ the challenges and don’t run away from your problems. Try to solve them and then you will find your way.
mentioned
develop
influenced
service
Accept
时态：一般过去时
It is +adj. +for sb.+ to do sth.
动作已经发生，所以用一般过去时
形容词后加名词
祈使句，以动词原形开头
2c
Complete the passage with the correct forms of the words in the box.
challenge create influence quality traffic bad
How will AI technology ____________ the future world Many experts think AI will improve the ____________ of our future life and change many industries. For example, AI will help us build a smart public transport system and solve ____________ problems. AI will also change education. It will make learning better match what students need. While some jobs may go away, people will focus on more ____________ and difficult tasks. Will AI make our life better or __________ It depends on how we choose to improve and use AI to meet future ____________.
v.
n.
adj./n.
adj.
adj.比较级
n.
go away 消失
depend on 取决于
/tɑ sk/ n. 任务；工作
2c
Complete the passage with the correct forms of the words in the box.
challenge create influence quality traffic bad
How will AI technology ____________ the future world Many experts think AI will improve the ____________ of our future life and change many industries. For example, AI will help us build a smart public transport system and solve ____________ problems. AI will also change education. It will make learning better match what students need. While some jobs may go away, people will focus on more ____________ and difficult tasks. Will AI make our life better or __________ It depends on how we choose to improve and use AI to meet future ____________.
influence
quality
traffic
creative
worse
challenges
go away 消失
depend on 取决于
小红书：Christina在努力
the
influence
of AI
good
influences
bad
influences
improve the quality of our life
build smart transport system
solve traffic problems
change education
make learning better match students’ need
jobs
some jobs may go away
focus on more creative and difficult tasks
better or worse
depends on how we choose and use
Learning words by drawing mind maps.
accept
develop
influence
mention
service
challenge
create
quality
traffic
bad
Match the words with the correct Chinese meanings.
1. n. 素质；质量 adj. 优质的
2. n. 服务
3. v. 增强；发展；开发
4. 差的；坏的
5. n. 挑战；质疑 v. 向......挑战
6. n. 交通 v. 做......买卖
7. v. 提到；写到
8. v. 接受；相信
9. n./ v. 影响
10. v. 创造
一、 根据首字母或汉语提示完成单词
1. Food safety is the most important. We need food of good q .
2. — Don’t talk about this matter again.
— Sorry， I won’t m it again.
uality　
ention　
3. Lu Xun is the a of The True Story of Ah Q（《阿Q正传》）.
4. I often eat at Shenghao Restaurant. Its food and s are
excellent.
uthor　
ervice　
5. The head teacher often （接受） our advice about having
classes.
6. They are all （专家）. You can ask them for help.
accepts　
experts　
基础作业
Read and remember the new words and sentences in this part.
提升作业
2.Write an English essay of no less than 80 words titled “AI and My Future Life”.
拓展作业
Make a video about an English situational dialogue with your family or friends on the theme of “Challenges and Opportunities in the Future Life”.
Homework/ 让教学更有效 精品试卷 | 英语学科
一、学习目标
①能够掌握否定前缀 dis/un/im/in等构成反义词的规则，能够写出常见单词的反义词；
②能够掌握重点词汇：accept, develop, influence, mention, service；challenge, create, quality, traffic, bad，会正确变换词形完成句子与短文填空；
③能读懂 AI 主题语篇，获取人工智能对未来生活影响的信息，正确运用词形变化完成语篇填空。
二、教学重难点
重点：否定前缀构成反义词的构词规则；重点动词、名词词形变换；完成句子和语篇填空。
难点：辨析不同否定前缀的使用场景；根据语境正确变换单词形式填空。
三、教学过程（40min）
Step1 Leadin 导入（5min）
展示图片：happysad；oldyoung；poorrich；fatthin；fastslow，引出opposites（反义词）。
头脑风暴：让学生说一说自己知道的英语反义词，教师板书。
设计意图：用图片直观激活旧知，引出本节课主题 —— 反义词。
Step2 Presentation 新知探究 2a（15min）
完成 2a：Write the opposites of the words. Use your dictionary. 1.moreless/fewer 2.possibleimpossible 3.betterworse 4.challengingeasy 5.appeardisappear 6.winnerloser 7.positivenegative 8.everywherenowhere
小组讨论：找反义词的构成规律，教师总结三类： ①加否定前缀（dis /un /im /in /ir /il /mis）； ②合成词变反义词（everywherenowhere，everyoneno one 等）； ③完全不同的单词（goodbad，betterworse）。
讲解前缀规则：
un 加形容词、名词；dis多用于动词、形容词；
im用于 m/b/p 开头单词；in通用否定；ir接 r 开头；il接 l 开头。
巩固小练习：写出 appear, like, happy, possible 的反义词。
活动：配对游戏 Match！把 fastslow、happysad、expensivecheap、fullempty、activeinactive 进行配对，巩固反义词记忆。
Step3 Practice 2b 句子填空（12min）
呈现方框词：accept, develop, influence, mention, service，讲解词义。
语法点拨： ①It is +adj. + for sb. to do sth. 对某人来说做某事是……； ②一般过去时：动作发生在过去，动词变过去式； ③祈使句：句首动词原形； ④meet one’s needs for…满足某人对…… 的需求。
学生独立完成 2b，核对答案：
mentioned 2. develop 3. influenced 4. services 5. Accept
逐句翻译，分析每空为什么使用该形式。
Step4 Reading & Fillin 2c 语篇填空（10min）
导入话题：How will AI change our future 简单讨论 AI 的利弊。
框词：challenge, create, influence, quality, traffic, bad。提示注意词形变换（名词、形容词、比较级）。
学生通读短文，理解大意，完成填空。 答案：influence；quality；traffic；creative；worse；challenges
重点短语讲解：go away 消失；depend on 取决于；focus on 集中于
读后思考：What are the good and bad sides of AI 学生简单口头输出，辩证看待人工智能。
Step5 Summary & Homework（3min）
课堂小结 ①反义词三种构成方式，重点否定前缀； ②重点单词及词形变化； ③辩证看待 AI 技术。
布置作业：完成课后练习；整理笔记本，归纳带否定前缀的单词。
四、板书设计
Unit7 SectionB 2a2c
Opposites 反义词
否定前缀：dis disappear；un unhappy；im impossible
合成词：everywherenowhere
异形词：goodbad betterworse
Key words
accept, develop, influence, mention, service challenge, create, quality, traffic, bad
短语
meet one’s needs for… depend on focus on/ 让教学更有效 精品试卷 | 英语学科
一、写出下列单词的反义词
1. appear ________
2. happy ________
3. possible ________
4. everywhere ________
5. like ________
6. usual ________
7. active ________
8. expensive ________
二、用方框词的正确形式填空（2b 重点词）
accept develop influence mention service
1. He ________ that he would join the club yesterday.
2. Schools help students ________ different life skills.
3. The great book ________ thousands of young people.
4. People need better medical ________ in small towns.
5. ________ your mistakes and learn from them.
三、短文填空（仿照 2c 题型，用所给词适当形式填空）
方框词：create, challenge, bad, influence, quality, traffic
Will new technology ________ our daily life Many people believe it will improve the ________ of our life. Smart cars can help solve ________ jams. Robots can help us do more ________ jobs. But new technology may also bring something ________. We should face these ________ bravely.
四、单项选择
1. It is important ______ teenagers ______ good reading habits.
A. for; develop B. of; develop C. for; to develop
2. — Is everything in the box
— No, ________ is inside it. It’s empty.
A. everything B. nothing C. everywhere
3. The girl didn’t ________ her plan in the meeting.
A. mention B. accept C. develop
五、英译汉
1. meet people’s needs for health services ________________
2. depend on our own choices ________________
3. focus on more creative tasks ________________
六、简短书面表达（50 词左右）
题目：What do you think of AI 简单说说人工智能的好处与挑战。
八上 Unit 7 When Tomorrow Comes Section B (2a-2c)课堂练习参考答案
一、1.disappear 2.unhappy 3.impossible 4.nowhere 5.dislike 6.unusual
7.inactive 8.cheap
二、1.mentioned 2.(to) develop 3.influenced 4.services 5.Accept
三、influence; quality; traffic; creative; worse; challenges
四、1.C 2.B 3.A
五、
1. 满足人们对医疗服务的需求
2. 取决于我们自己的选择
3. 专注于更有创造性的任务
六、参考范文：
I think AI can help us a lot. It can make our life easier and improve our study. But it also brings some challenges. We should use AI in good ways.

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