(共29张PPT)
Section C
Words & Phrases
Unit 2 Saving the Earth
Topic 3 What can we do at home to protect the environment
对的英语工作室
YESENGLISH
acid rain
Noun:
rain containing acids that form in the atmosphere when industrial gas emissions (especially sulfur dioxide and nitrogen oxides) combine with water
nuclear
Adjective:
(weapons) deriving destructive energy from the release of atomic energy;
of a nucleus, especially of an atom
biogas
Noun:
is a renewable energy that can be used for heating, electricity, and many other operations that use a reciprocating internal combustion engine;
technology
Noun:
knowledge dealing with scientific and industrial methods and their practical use in industry; practical science
the discipline dealing with the art or science of applying scientific knowledge to practical problems;
straw
Noun:
the dry stems of plants like wheat
a thin tube of paper or plastic for sucking up liquid
sth of the smallest value
renewable
Adjective:
that can be renewed or extended;
capable of being renewed; replaceable;
disadvantage
Noun:
an unfavorable condition or quality that makes a person or thing less successful or effective than others
The Camel and the Goat
process
Noun:
a particular course of action intended to achieve a result;
series of actions or operations performed in order to do, make or achieve sth
Verb:
put sth through an industrial or manufacturing process in order to change or treat
require
Verb:
give an order, with the expectation that it will be obeyed
demand by right
depend on sb/sth; need or make necessary
wish to have
electric
Adjective:
using or providing or producing or transmitting or operated by electricity;
produced by electricity, producing electricity, used in the convey-ing, using electrical power
best-known
Adjective:
most familiar or renowned;
maglev train
German
Noun:
a person of German nationality
the standard German language; developed historically from West Germanic
per
Prep.
express rates
wheel
Noun:
a simple machine consisting of a circular frame with spokes (or a solid disc) that can rotate on a shaft or axle (as in vehicles or other machines)
the steering wheel of a car or guiding wheel of a ship
efficient
Adjective:
being effective without wasting time or effort or expense;
able to accomplish a purpose; functioning effectively;
guide
Noun:
someone who shows the way by leading or advising
something that offers basic information or instruction
Verb:
direct the course; determine the direction of travelling
path
Noun:
pathway; a track or way made by people walking over the ground
a line along which sth moves; a way
a line or route along which something travels or moves;
steel
Noun:
an alloy of iron with small amounts of carbon; widely used in construction; mechanical properties can be varied over a wide range
Verb:
get ready for something difficult or unpleasant
Word Competition - Spelling
technology
Noun:
knowledge dealing with scientific and industrial methods and their practical use in industry;
the discipline dealing with the art or science of applying scientific knowledge to practical problems;
require
Verb:
give an order, with the expectation that it will be obeyed
demand by right
depend on sb./sth.; need or make necessary
wish to have
German
Noun:
a person of German nationality
the standard German language; developed historically from West Germanic
pl. Germans
wheel
Noun:
a simple machine consisting of a circular frame with spokes (or a solid disc) that can rotate on a shaft or axle (as in vehicles or other machines)
the steering wheel of a car or guiding wheel of a ship
guide
Noun:
someone who shows the way by leading or advising
something that offers basic information or instruction
Verb:
direct the course; determine the direction of travelling
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Section C教学设计
一、教材分析：
本课是九年级第二单元第三话题的第三课时。主活动是1a。1a 介绍了世界各地的人们如何开发和利用环境友好型和资源节约型的新能源，同时也指出了这些新能源的利用方式所存在的不足之处。在介绍的过程中，让学生学到更多并列句的连接词。如：however, not only…but also…等。1b通过图片匹配可以帮助学生形象地理解比较陌生的事物。1c培养学生归纳处理信息的能力。2a和2b 是两个关联性很强的任务。2a指出人们可以利用可再生能源来发电，并让学生讨论怎样利用这些可再生能源，然后在2b环节形成书面报告。这两个环节，其实是培养学生学会作记录，并根据记录整理成短文的能力。2b是个书面活动，可以留作家庭作业。
二、教学目标：
1.知识目标
掌握本课的重点词汇和短语，继续学习并列句。
2.技能目标
学会更多连接并列句的方法。
学会在讨论中作记录，并整理记录使之成文。
能够对信息进行分类处理。
3.情感目标
激发学生探索利用新能源的热情。
了解世界各国在开发和利用新能源方面的现状和成就。
三、教学重难点：
1. 教学重点
Words and phrases: technology, renewable, disadvantage, require, German, wheel, guide, deep, run out, source, worldwide, produce…from…, not only…but also…, too…to…
Sentences: However, nuclear power can be very dangerous.
It can not only protect the environment but also save energy.
It’s too small to hold many people.
Grammar: compound sentence
2. 教学难点：
理解文章中出现的大量专业术语。如：biogas technology, maglev trains 等。
理解文中出现的被动语态。如:
This renewable energy is used in people’s everyday lives.
Electric vehicles were developed in the 1990s.
It’s too small to hold many people, but larger models will be developed in the near future.
理解文中出现的表语从句。如：
Its key disadvantage is that the process requires a long time (up to 30 days) and the high cost for its building.
四、学习策略
在1a、1b和2a中，能够根据文字描述进行图文匹配。
在1c 环节能够根据要求获取不同的信息，并能根据所完成的图表复述文章的大意。
要养成在讨论中作记录的好习惯，并利用记录的要点来组织短文。
利用课文中的插图和教材附录中的资料来理解课文。
五、教学过程：
教学环节 教师活动 学生活动 设计意图
复习导入 1. Play the video, Tell Me Why. Let the Ss enjoy the song.2. Ask the Ss to answer What we should/shouldn’t do to protect the environment in our daily life. 3. Lead to the new section and show the leaning aims.. 欣赏歌曲 回答问题了解学习目标 吸引兴趣，创设氛围复习导入
讲授新课 1．Organize a word competition. Divide the whole class into two groups. Show some pictures and the Ss guess the new words.2． Enjoy a video : Give Earth a Hand. Let the Ss think about the questions: 1) Why should we give the earth a hand 2) How can we help the earth Then let the Ss share their ideas.3. Ask the Ss: What do scientists do to protect the environment The show the three pictures in 1a and ask the Ss to guess: 1) What is it 2) What do you think of it 4. Read the passage, and choose the right picture for each paragraph.5. Read 1a again and match the words with the pictures on Page 48.6．Read Paragraph 1 and mark T or F.7. Read Paragraph 2 and answer the questions.8. Read Paragraph 3 and fill in the blanks.9. Read Paragraph 4 and translate the sentences into English.10. Read 1a again and complete the table in 1c.11. Read the passage again and prepare for a talk show according to the table in 1c.12. Retell the passage with the help of the mind map.13. Do some exercise. 单词竞赛活动，根据图片猜单词。观看视频并思考问题。分享看法。看图并猜测显示的是什么？有什么是看法？快速读文章并匹配图片和段落再读课文，匹配图片与生词读每一段并完成对应的学习任务。再读1a，完成1c的表格。利用思维图复述完成练习 本课单词较多，让学生课前预习，进行竞赛活动的方式更高效。理论联系实际，培养创造力自由表达。预测阅读材料浏览确定段落主题跳读查找信息并根据上下文理解词义逐段精读整体回顾思维导图当堂检测
课堂小结 1、小结本课学习要点2、布置作业 总结本课知识点
板书
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Section C 随堂练习
1、句型转换
1．Watching TV too much is bad for your eyes. (用good改写为选择疑问句)
________ watching TV too much ________ ________ ________for your eyes
2．Something is wrong with the TV set. (用there be句型改写句子)
________ ________ ________ ________ ________ the TV set.
3．Maths is important. English is important, too. (用as…as连成一个句子)
Maths ________ ________ important ________ English.
4．Work hard, and you will pass the exam. (用if改写为复合句)
________ ________ ________ ________, you will pass the exam.
5．They are good at singing. They are good at dancing. (用not only…but also改写为简单句)
They ________ ________ ________ good at singing ________ ________ good at dancing.
2、完型填空
Mr. Lee had never been up in an airplane before and he had read a lot about accidents. SO one day when a friend came to his house and 1. ____ to take him for a ride in his own small plane , Mr. Lee was very 2._____.He thought to himself , "If I don't agree ,my friend may not be happy.3_____ if I agree ,I'm really afraid that there might he some danger." 4.___,however , his friend made him believe that it was very 5. ____,and Mr. Lee got on the plane .
His friend 6._____ the engine and the plane began to move along on the ground of the 7. _____. Mr. Lee was frightened and closed his eyes. After a minute or two he opened them 8.____, looked out of the window of the plane and said to his friend." Look 9____those people down over there .They look as 10____as ants, don't they "
"Those are ants ,"answered his friend, "we are still on the ground."
( ) 1. A. offered B. allowed C. agreed D. afford
( ) 2. A. excited B. grateful C. worried D. glad
( ) 3. A. As B. For C. So D. But
( ) 4. A. Finally B. First C. Last D. But
( ) 5. A. interesting B. safe C. comfortable D. enjoyable
( ) 6. A. began B. carried C. moved D. started
( ) 7. A. airport B. town C. station D. yard
( ) 8. A. again B. once C. quickly D. easily
( ) 9. A. up B. at C. over D. after
( ) 10. A. short B. big C. strange D. small
3、阅读理解
Bob and Jim once worked in the same factory. One day, Bob lent Jim ten dollars, but then Jim left his work and went to work in another town without paying back the money.
Bob didn't see Jim for a year, and then he knew from another friend that Jim was in another town and staying at a hotel. So he went there to see him late in the evening.
When he got to Jim's room, he saw his shoes near the door. "Well, he must be in," he thought, and knocked again, and said, "I know you are in, Jim. Your shoes are out here."
"I've gone out in my boots," answered Jim.
True or False
1. Bob and Jim once worked in different factories.
2. One day Jim borrowed ten dollars from Bob.
3. Jim paid back the money to Bob and went to work in another town later.
4. Bob hadn't seen Jim for a year when he learned that Jim was in another town.
答案
一、
1．Is; bad or good 2．There is something wrong with
3．is as; as 4．If you work hard 5．are not only; but also
二、
1-5 A C D A B 6-10 D A A B D
三、
1-4 F T F T
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Enjoy the video: Tell Me Why
Section C
Unit 2 Saving the Earth
Topic 3 What can we do at home to protect the environment
对的英语工作室
YESENGLISH
Learning aims
1. Be able to use the new words:
technology, require, German, wheel, guide
2. Know about other new words in this section.
3. Be able to talk about advantages and disadvantages.
4. Know about the Passive Voice.
Word Competition - Reading
Talk Show
Give the Earth a Hand
Tips:
Why should give the earth a hand
How can we help the earth
It’s an electric car. It works well, but it’s too small to hold many people.
electric (adj.) — electricity (n.)
What’s it What do you think of it
It’s a maglev train. Its advantages are quiet, fast and clean, but it’s too expensive.
What’s it What do you think of it
It’s a device to make biogas.
China is one of the first countries in the world to use biogas technology .
What’s it What do you think it is used for
1a Read and understand.
Look at the pictures. Choose the right picture for each paragraph.
paragraph 2
paragraph 3
Paragraph 4
1b Read 1a and match the words with the pictures on Page 48.
A. acid rain B. nuclear energy C. biogas
A
C
B
adj.原子核的，
原子能的
酸雨
Listen to Paragraph 1, and then mark True (T) or False (F).
( ) It’s good that people produce power from coal.
( ) Nuclear power is dangerous. So we mustn’t use it.
( ) People all over the world are looking for new ways to produce power to solve the energy problem.
T
F
F
Read Paragraph 2 and answer the questions.
Isn’t China one of the first countries in the world to use biogas technology
What do farmers do to make biogas
What’s the advantage of biogas
How long does the process of making biogas require
How many disadvantages does biogas have
Yes, it is.
They recycle straw, grass and animal waste to make biogas.
It’s renewable and used in people’s everyday lives.
A long time (up to 30 days).
Two.
One is the long process, and the other is the high cost.
Read Paragraph 3 and fill in the blanks with the help of the tips.
Electric vehicles were developed in the 1990s. On April 11, 2010, a new kind of electric vehicle named “Yezi” was shown in the 2010 Shanghai World Expo. It produces electricity from the sun, the wind and CO2. It can not only protect the environment but also save energy. It’s too small to hold many people, but larger models will be developed in the near future.
develop
name
show
由……生产电能
不但
而且
hold
develop
Read Paragraph 4 and translate the following sentences.
中国最著名的景点是在北京的长城。
In China, the best-known place of interest is the Great Wall in Beijing.
现在，去35公里外的南召只需要花费我们20分钟。
Nowadays, it takes us just 20 minutes to go to Nanzhao 35km away.
她跑步的时候可以达到每小时21公里的最高速度。
She can reach a top speed of 21 km per hour.
我的手机比他的便宜多了。
My cellphone is much cheaper than his.
1c Read 1a again and complete the table.
Item Advantage Disadvantage
biogas
electric vehicle
maglev train
renewable
long process and high cost
save energy,
no pollution
too small to hold many people
quiet, quick, energy-efficient, no pollution
much more expensive
Read and Prepare
Read the passage again and prepare for a talk show about the advantages and disadvantages.
a long time
30 km
Exercises
He studies at a college of science and ____________.
Kris and Karl come from Europe. They’re ___________.
The front ________ of the bike was out of shape.
Please call me if he __________ my help.
I know the place well, so let me be your _________.
technology
Germans
wheel
require
guide
Complete the following sentences with the proper forms of the given words.
guide , wheel, require, German, technology
Summary
We learn:
Some words: technology, wheel, require, German, guide
We can:
Talk about the advantages and disadvantages of some kinds of energy.
Assignment
Read 1a.
Memorize the useful expressions and key sentences which we learn today.
Finish Section C in your workbook.
Write a passage about one of the energy sources in 2a.
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