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高三教案 第650期
发布时间:2018-04-16

2017-2018学年度第34期总第650期
Doing ‘clean’ exercise (P1)
江苏省南菁高级中学 范克强
Prediction

What can you predict from the title “Clean Exercise”, and what do you think it means?

1. It can be predicted that this text mainly offers an explanation of “clean exercise ”, which sounds like a different way to exercise.

2. It means when you are jogging, you are collecting garbage across the sidewalks and along the pavement to make the environment clean and beautiful.

While reading
What is the main idea of this passage?
It is mainly about a phenomenon that involves collecting garbage while jogging.

 
Reading in detail
1. What does the word “plogging” mean in this text?
It combines the Swedish phrase “pick up” and the English word “jogging”, indicating  that
it is beneficial to both the environment and our body.

2. What are the benefits of “plogging”?

 

3. What do ploggers do when they collect garbage on the pavement?

(1). Carry a trash bag and wearing a pair of gloves
(2). Learn to classify and dispose of garbage correctly
(3). Keep a note of what has been collected

4. How do you understand the sentence “The process of collecting garbage is simple, but it sheds light on serious environmental issues”?

It reflects the existence of serious environmental problems and raises ploggers' awareness and concern about garbage left in public places.

5. What is the purpose of this passage?

The author tries to call on more people to take part in “plogging” and make a difference to their body and the environment.

Post-reading

Task 1: Retelling
Use the following words or phrases to retell the text.

Plogging; Shed light on; Classify; Dispose of; Calories; sense of self-satisfaction; body and environment

Task 2:
Discussion
Do you think it’s necessary to collect garbage when you are jogging? Can you list some reasons why or why not?

Task 3:
Critical thinking
What else can you do to protect the environment and make the world a cleaner place? Try to answer using different perspectives.

 

 


Safe to use phones (P6)
江苏省南菁高级中学    秦虞

Pre-reading: topic
 Do you use mobile phones a lot?

 What do you usually do with your mobile phone?

 Do you think using mobile phones could lead to health problems?

While reading: argument
 How could the use of mobile phones pose a risk to human health in some people’s eyes?
Using mobile phones could lead to a risk of cancer.

While reading: refutation
 Is the radiation given off by mobile phones dangerous, according to the text?
Not really. High-energy radiation such as that given off by nuclear waste can damage our DNA and cause cancer or death. But mobile phones give off low-energy radiation, which is considered harmless. And we are exposed to it all the time.

How does the author refute the argument?
By refuting the definition and making a comparison.

 Why did the two studies fail to prove radiation could cause cancer, according to the text?
The studies exposed rats and mice to radiation but only a small number of rats were found to have developed heart tumors. Plus, the subjects were exposed to far more radiation than even the heaviest mobile phone user would usually be.

 What is the US Food and Drug Administration’s opinion of the effects of using mobile phones?
It has not found sufficient evidence that using mobile phones causes adverse health effects in humans.

 Tick the methods the author adopts to prove the safety of using mobile phones.
   A. citing studies
   B. citing authorities’ opinion
   C. providing data
   D. clarifying a definition
   E. making a comparison

Key: ABDE

While reading: Concession
 What is the function of paragraphs 14 and 15?
The author attempts to make a concession (让步) to show his caution.

 What are the author’s suggestions for careful phone use?
He advises to use a headset when making phone calls and to limit the time spent using mobile phones.

While reading: Conclusion
 How do you understand the sentence: there’s no need to take bananas off the menu?
There is no need to avoid eating bananas just because they emit radiation. Likewise, there is no need to avoid using phones just because they give off radiation.

 Which of the following idioms best express the meaning of “take bananas off the menu”?
A. Throw away the apple because of its core
B. One man’s meat is another man’s poison
C. Make a mountain out of a molehill
D. Once bitten, twice shy

Key: A

After reading: Your opinion
 After reading this article, are you convinced that using mobile phones is safe? Why or why not?

After reading: Discussion
 With the development of the internet and social media, a sea of information, whether confirmed or not, is being spreading online. How should we treat online information?
First, we should develop critical thinking skills and avoid blindly believing whatever is spread online so as to become more skillful at separating facts from fiction in cyberspace. Cross-checking sources is also preferred.
Secondly, we should be conscious of our roles in passing along information, which means we should be mentally disciplined in our choices on when to spread information online.

Language focus: sentence translation
 High-energy radiation - such as that given off by nuclear waste - is known to be very dangerous to humans as it has the capability to damage our DNA, leading to cancer or even death.
本句的主句为:High-energy radiation is known to be very dangerous to humans。句中such as为插入语,举例说明高能辐射;as引导原因状语从句,动词-ing短语leading to …作结果状语。
释义:高能辐射,例如核废料释放的辐射,被认为对人们造成的危害极大,因为它能损害我们的DNA,导致癌症、甚至死亡。

Language focus: language accumulation
Useful sentences:
•Ever since … became widely used around the world, there have been concerns about …
•….., which many believe could be a cause of …
•When it comes to … it’s best to take as many precautions as possible, even if the risk is only small.
4. For those people, it is advisable to …
5. But don’t worry: there’s no need to …

Vocabulary:
1. sb be exposed to, expose sb to, exposure to   使遭受,使接触
E.g., Authorities related should organize more activities in which the public are exposed to traditional culture.
2. source 源泉 
E.g., a source of inspiration, a source of renewable energy
3.  give off, emit  发射
4. pose a (dangerous) risk/threat to 对产生危险/威胁

 

 

 

 

 

 

 

 

 

 

 

 

 

 


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