课件内容介绍和使用说明
本课件是为仁爱英语九年级上册Un ( http: / / www.21cnjy.com )it 2 Topic 2 Section B编写的教学课件，这是第二单元第二话题的第二课时。本课通过Michael 和Kangkang关于空气污染这一话题的讨论，学习相关的单词和短语，并掌握不定代词和不定副词的用法。通过对话的学习，让学生进一步了解污染的危害性，并能从自身做起保护环境。 同时，也对学生的语音知识如：弱读、连读和语音语调等进行了科学合理的训练。为更好更有效地实现本课教学目标，本课件从学生实际出发，对教材进行了必要的整合，教学设计直观生动。基于本节课主要活动有2个，1a和2，因此对教学设计作如下安排：
Getting students ready for learning:
复习掌握复合不定代词和不定副词及其用法。出示一个表格，小组竞赛填表格，看哪一组填得多。同时学习本课出现的几个新单词。 (幻灯片2 )
小组比赛，用不定代词和不定副词造句，看哪一组造得句子多。(幻灯片3 )
Pre-listening:
出示一组空气污染的图片，讨论其危害及如何保护环境。(幻灯片4 )
While-listening:
听1a 录音，回答相应问题。(幻灯片5 )
再听1a 录音，完成1b。(幻灯片6)
播放1a动画，注意模仿语音语调，进一步理解对话内容。(幻灯片7 )
Post-listening:
在谈论过程中教师有意识引导出本课新的单词。为理解1a内容打好基础。 (幻灯片8、9)
阅读1a，完成1c。(幻灯片10 )
圈出对话中的不定代词并练习。(幻灯片11 )
听2录音，完成Kangkang的信。(幻灯片12)
Practice:
听3录音，注意弱读、连读及语音语调，并模仿。完成3。(幻灯片13)
小组合作，完成4。(幻灯片14 )
根据4，写一篇演讲稿。(幻灯片15)
Assigning homework:
①总结本堂课的新单词、短语和语法项目，让学生能把握整堂课的重点。(幻灯片16)
②设计了书面显性作业及课文朗读、对话练习、预习新课等隐性作业。(幻灯片17)(共18张PPT)
Unit 2 Saving the Earth
Topic 2 All these problems are very serious.
Section B
Who can fill it quickly
thing body one where
some
any
every
no
something
somebody
someone
somewhere
anything
anybody
anyone
anywhere
everything
everybody
everyone
everywhere
nothing
nobody
nowhere
pron.没有人
n.小人物，无足轻重的人
pron.人人，每个人
Let’s have a match
Group 1 Group 2
Air pollution
What can we do to protect our environment
Answer the questions.
(1) What’s the article about
(2) What should we do and not do to protect the environment
2
3
4
1
5
1b Listen to 1a and number the following pictures.
1a Look, listen and say.
1.None of us likes pollution. 没人喜欢污染。
pron.没有一个， 毫无
none和no one 的区别;
No one 1)不与of连用；2)谓语动词用单数；3)只能指人，但不具体指什么人；4)一般用来回答who,及含anyone, anybody引起的疑问句。
None 1)可与of连用；2)谓语动词用单或复数；3)具体指什么人或物；4)一般用来回答how many +n, how much +n及含any +n引起的疑问句。
4.But the government is doing something useful to protect the environment. 政府正在做一些有益的事情来保护环境。
3.We shouldn’t leave rubbish here and there.我们不应该随处乱扔垃圾。
在多处
n.垃圾，废弃物
2. Everyone should care for wild animals and plant more trees .每一个人都应该爱护野生动物，种更多的树。
adj.野生的，野的
不定代词+形容词
1c Read 1a and complete the table.
Should do Shouldn’t do
1.____ ____ wild
animals
2.plant _____ _______
3.do ___________ we
can 1._______ rubbish here
and there
2._______anywhere
in public
3.________ on grass
4. pick _________
care for
more trees
everything
leave
spit
walk
flowers
Use everything, everyone, anywhere, something to fill in the blanks.
But the government is doing _________ useful to protect the environment.
____________ should care for wild animals and plant more trees.
Don’t spit _____________ in public.
We should do _________ we can to protect the environment.
something
Everyone
anywhere
everything
Dear Headmaster,
I’m writing to tell you _________important. Nobody likes to be untidy. However, some students throw waste paper and bottles ___________. We all need a quiet place to study, but some students often make too much noise at school. Worst of all, some of them are quite rude when talking to_______. __________________ knows their behavior is bad, but ______of us knows how to stop them.
I think we should make rules to change the situation. ________ who breaks the rules will be punished. Perhaps it will be hard for us to keep the rules in the beginning, but if___________________does his or her best to follow the rules, our school environment will improve.
Sincerely,
Kangkang
Everyone/Everybody
none
everyone/everybody
Anyone
2 Listen to the letter and help Kangkang to complete it . Then read it aloud as accurately as possible.
others
everywhere
something
Example :
As we all know, air pollution has become a serious problem
Everybody knows air pollution has become a serious problem.
1.None of us would like to see dirty water and rubbish
lying around .
________ would like to see the dirty water and rubbish
lying around .
2. We should follow social rules and spit nowhere in public .
We should follow social rules and not spit __________
in public.
3. We should do everything to protect the
environment in our daily lives .
We shouldn’t do ________ to destroy the
environment in our daily lives .
Nobody
anywhere
anything
4 Discuss the following questions in groups and try to find the solutions.
1.Do you have any bad habits when you are
at school What are they
___________________________________
2.How can you make your school look better
___________________________________
You can choose the phrases to use:
1. It says that … 2. as a result
3. something useful 4. None of …
5. here and there 6. care for
7. Worst of all 8. make rules
9. change the situation 10. Perhaps
11. obey the rules 12. do one’s best
Make a speech about protecting our environment.
We learn: 1. some words : none, rubbish, wild, nobody, worst,
situation, punish, everybody
2. some phrases: here and there, worst of all
3. some sentences :
①None of us likes pollution .
② Don’t spit anywhere in public.
③ Everyone should care for wild animals and plant more
trees .
④We should do everything we can to protect the
environment.
⑤ We shouldn’t leave rubbish here and there.
We can: 1. Use the indefinite pronouns and adverbs correctly.
2. Use the proper ways to protect the environment.
Summary
Read 1a.
Memorize the useful expressions and key sentences which we learn today.
Finish Section B in your workbook.
Preview Section C.
Thank you!
