Unit Four Environment
Section I Listening and Speaking
Unit Goals:
1. To know and learn the environmental pollution and its impact on human beings;
2. To raise the students’ awareness of protecting environment;
3. To learn to write a summary;
4. Make a quick review of Adverbial clauses.
I Focus
1.Ask the students what kinds of environmental pollution they know. Guide the students to speak out the main kinds of the pollution.
1) Air pollution: including enterprise exhaust emission pollution, motor vehicle exhaust emission pollution, catering oil smoke emission pollution, construction pollution, garbage burning pollution, crop
straw burning pollution, indoor decoration materials release hazardous matter pollution, indoor air pollution;
2) Water pollution: including surface water pollution, groundwater pollution, Marine pollution and drinking water pollution;
3) Solid waste pollution: including waste (construction waste, household waste, medical waste, etc.) pollution, radioactive waste pollution, white pollution;
4) Soil pollution: including fertilizer pollution, pesticide pollution and white pollution;
5) Pollution of chemical pollutants, mainly heavy metal pollution, organic pollution, inorganic pollution;
6) Microbial contamination: mainly e. coli, pathogenic bacteria and viruses;
7) Radioactive pollution: mainly radioactive pollution of building materials, radon gas and medical treatment;
8) Noise pollution: including industrial noise pollution, domestic noise pollution, traffic noise pollution, construction noise pollution, etc.;
9)Electromagnetic radiation pollution: there are power frequency radiation pollution and radio frequency radiation pollution.
2.Get the students to match the kinds of pollution to the pictures on P61.
3.Let the students work with their partner and find more examples of pollution.
II Listening Practice
Listening 1 Riding a bicycle
1.Lead the students to read the listening material of this part before listening.
2.Listen to the interview and fill in the missing words.
3.Listen again and check the answers. Pause the interview if requested.
Key points:
1)… I don’t need to fill my bike with gas so I am not using up fossil fuel that will soon become rare.
I d on’t need to use gas because I rid e my bike, so I can save valuabl e fossil fuel that will
soon be used up.
2)That depends on how far you have to go.
You can decide on whether you should go by bike by judging how far you will have to go.
depend on: 取决于
< (1) But whether he accepts it may depend on how you make the offer. 但是他是否会
接受也许取决于你给予的方式。
(2) Y our advancement depends on your worth –your ability. 你的晋升取决于你自己
的价值，即你的能力。
Listening 2 Solar panels
Listen to the interview and choose the correct answer for each question.
Key point:
…
and I think it will take 50 years for them to pay for themselves.
… and I think if I only use the money I get by selling the electricity I don’t need to buy the panels, it’d take me 50 years.
Viewing: Not good for the environment
1.Before watching, let the students make a shopping list for the weekend.
2.Read the new words watch the short video and number the items as you hear them. Key: milk in glass bottles→ milk in plastic bags→water→beer→BBQ coal
3.Read the sentences of Ex. 3, then watch again and judge the sentences.
Key points:
1)But how about I buy the heavy stuff tomorrow …
But is it OK if I buy the heavy stuff tomorrow …
how about: ……怎么样
<  (1) How about working in my restaurant? 到我的餐馆里打工如何？
(2) How about staying around and helping me close up shop? 不如你留下了帮我打
烊如何？
2)But what about the milk?
But who will go and buy milk today?
what about: (=how about) 怎么办
<  (1) What about three or four? 三点或四点怎么样？
(2) What about those of us who have average children? 我们这些有普通孩子的人怎
么办呢？
Listening 3 Airline meal
1.Read the new words before listening.
water pollution
2.Listen to the tape and find out if Bob’s roll was wrapped in plastic.
3.Listen again and correct the wrong word in each sentence.
Listening 4 Saving energy at home
1.Listen to the dialogue foe the first time and find out what the number means.
2.Listen again and finish Ex. 2.
3.Listen and repeat to check the answers.
III Speaking
Safety Signs
Task: Imagine you were selling these safety signs on P75. Tell a customer why they are necessary.
Think about:
1.Where you would see them?
2.What they mean?
3.What would happen if they were ignored?
ⅣAssignment
Preview Passage A.
Unit Four Environment
Section II Passage News from the future (I)
I Revision
Brief review of the kinds of environmental environment.
1) Air pollution
2) Water pollution
3) Solid waste pollution
4) Soil pollution
5) Pollution of chemical pollutants
6) Microbial contamination
7) Radioactive pollution
8) Noise pollution
9) Electromagnetic radiation pollution
II Background Information
United Nations Environment Programme: The United Nations Environment Programme (UNEP) is an international institution (a programme, rather than an agency of the UN) that coordinates United Nations environmental activities, assisting developing countries in implementing environmentally sound policies and practices. Its activities cover a wide range of issues regarding the atmosphere, marine and terrestrial ecosystems, environmental governance and green economy. It has played a significant role in developing international environmental conventions, promoting environmental scien
ce and information and illustrating the way which can be implemented in conjunction with policy, working on the development and implementation of policy with national governments, regional institutions in conjunction with environmental Non-Governmental Organisations (NGOs). UNEP has also been active in funding and implementing environment related development projects.
Cyclone: In meteorology, a cyclone is an area of closed, circular fluid motion rotating in the same direction as the Earth. This is usually characterised by inward spiraling winds that rotate anti-clockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere of the Earth. Most large-scale cyclonic circulations are centred on areas of low atmospheric pressure. The largest low-pressure systems are cold-core polar cyclones and extratropical cyclones which lie on the synoptic scale.
III Fast Reading
Ask the students to read the passage quickly and Finish two Exercises.
1.Decide if the sentences in Ex. 1 on P 64 are right or wrong according to News
from the future 1.
2.Choose the right answer to each question of Ex. 2 on P 64 according to News from
the future 2.
IV Intensive Reading
Lead the students to understand and translate the two news.
New words and expressons
1.announce[ə'naʊns] vt.宣布
eg. Today, I'm pleased to announce that we have exceeded that goal ― early.
今天，我很高兴地宣布，我们已经提前超越了这一目标。
2. critical['krɪtɪkəl] adj. 临界的
< We have reached a critical point in our drive to eradicate polio. 我们根除脊髓灰质炎的努力已达到一个临界点。
3.disappear[ˌdɪsə'pɪə] vi. 消失
< Many fear that these customs will disappear as new concepts and ideas come in from outside of China. 随着来自国外的新观念和新想法的涌入，许多人担心这些风俗会消失
4. melt[melt] vi. 融化
< (1)That is why heat can melt ice, vaporise water and cause bodies to expand. 这就是为什么热能使冰融化、使水蒸发、使物体膨胀的原因。
(2)Their tears can melt your heart. 他们的眼泪可以融化你的心。
5. drown [draʊn] vi. 淹没，沉没
< The entire city could drown in a tsunami triggered by such a quake. 这样的地震若引发海啸，整个城市都可能都会被淹没。
6. in a row 连续
< The European Commission’s index of consumer confidence fell in November for the fifth month in a row. 到11月，欧洲委员会的消费者信心指数已连续五个