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高二教案 第795期(1)
发布时间:2020-06-01

本期配套教案共2页:  1  2

2019-2020学年度第42期总第795期

Create a healthy ecosystem (P7)

山东省烟台第二中学 赵霞
Lead in
Common Knowledge Quiz
1. What is the biggest harbor in the USA?
2. Where is it?
Key:
1. The biggest harbor in the USA is the New York Harbor.
2. It’s on the Hudson River.

The river is absolutely breathtaking. But there has been something unpleasant occurring here.


Can you see the problem from the pictures?
The water has been polluted severely.

Now let’s read the passage and find out whether there is a solution to this issue.


Read for main idea
What is the main idea of the article?
   The solution to address the water pollution has been found: oysters. The oyster population is beginning to make a comeback, which could have a positive impact on the river. Oysters act as filters and can clean up to 50 gallons of water each day.
Oyster : 牡蛎;生蚝
★a large flat shellfish
★ rich in zinc as well as iron
★ some types of oyster can be eaten and others produce white jewels called pearls

Read for detailed information
Read the passage again and answer the following questions.
1. How does the author find the solution to the heavily contaminated water in NYC?
2. In what way can oysters make a difference to the river?
3. Why can’t the oyster restoration project work on Gowanus Canal?
4. What do the organizations do to better help educate the public?

1. How does the author find the solution to the heavily contaminated water in NYC?
   The solution was discovered by the author while participating in the two-week Institute for Environmental Journalism Summer Program.
    Institute for Environmental Journalism Summer Program:环境新闻研究所暑期项目

2.In what way can oysters make a difference to the river?
    The oyster population could have a positive impact on the river. Oysters act as filters and can clean up to 50 gallons of water each day.
     filter:过滤器

3. Why can’t the oyster restoration project work on Gowanus Canal?
   The canal is contaminated with sewage, heavy metals and pesticides. Each time it rains, contaminants that flow into the canal would exceed what the oysters could cope with and filter.
    restoration project:恢复/复原项目
    contaminated with sewage:被污水污染
    exceed: v.超过;胜过

4. What do the organizations do to better help educate the public?
   They are hosting canoe trips and inviting people in the community to come and see the oysters living in the canal. The more the city sees people using the canal, the more likely it may be to fund the oyster program.
    educate: v.教育;培养;训练
    fund: v.投资;资助

Read for language and grammar
1.Each time it rains, contaminants that flow into the canal would exceed what the oysters could cope with and filter.
contaminants 环境污染物 n.
cope with 处理;应付
What 引导宾语从句做动词exceed 的宾语
每次下雨,流入运河的污染物就会超过牡蛎所
能处理和过滤的量。

2. For the local people, bringing back oysters restores the hope that other species would thrive there too.
   restore:v.恢复;还原
   thrive: v.繁荣;兴旺;茁壮成长
   that引导同位语从句other species would thrive there too,做名词hope的同位语
   对当地人来说,带回牡蛎恢复了其他物种也会在那里繁衍生息的希望。

Read for language and grammar
1. 名词性从句
1. After five hours’ drive, they reached was the place they’d been dreaming of.
2. The other day, my brother drove his car down the street at was a dangerous speed.
3. The way he did it was different from we were used to.
4._________ the earth is round is known to us all.
5. Father made a promise ____ if I passed the examination he would buy me a computer.
(Key: what; what; what; That; that)

2. 非谓语动词
The solution to the heavily ______ water in New York City, US, may be located beneath the water’s surface: oysters. (contaminated)
    According to a 2018 report ______  by the New York State Department of Environmental Conservation, 6.25 billion gallons of sewage entered New York’s waterways between 2017 and 2018. (released)
    The primary cause of sewage pollution, the report found, is the runoff ______  by rain and snow that bypasses the preventative measures in treatment plants and manholes. (caused)
Despite this, in the past two decades, oysters have begun to reappear due to actions  ______  by organizations like The River Project and assistance from local volunteers. (being taken)
    For the local people, ______  back oysters restores the hope that other species would thrive there too. (bringing)
    Diversity within an ecosystem makes it more sustainable, with each species  ______  a role that other species depend on for survival. Each creature in an ecosystem has a role to carry out. (playing)

3. Translation
Now, with the help of organizations across New York City, the oyster population is beginning to make a comeback, which could have a positive impact on the river.
make a comeback:东山再起;卷土重来
have a positive impact on:有积极的影响
   现在,在纽约市组织机构的帮助下,牡蛎数量开始回升,这可能会对这条河产生积极的影响。

The primary cause of sewage pollution, the report found, is the runoff caused by rain and snow that bypasses the preventative measures in treatment plants and manholes.
bypass: v. 绕过;避开
preventative measures:预防措施
treatment plants:(污水) 处理厂
   报告发现了污水污染的主要原因是雨雪造成的径流绕过了污水处理厂和检修孔的预防措施。

Read for thinking
Apart from bringing back oysters, are there any other measures we should take to protect the water in the Hudson River?

 

本期配套教案共2页:  1  2

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