“Long dormant
bacteria and viruses, trapped in ice and permafrost for centuries, are reviving
as Earth’s climate warms”
By: Jasmin Fox Skelly
Published: 4 May
2017, BBC, http://www.bbc.com/earth/story/20170504-there-are-diseases-hidden-in-ice-and-they-are-waking-up
Level of Difficulty:**
BEFORE YOU READ
·
How
global warming is awakening deadly diseases https://www.seeker.com/how-global-warming-is-awakening-deadly-diseases-2092321154.html
LISTEN TO A RECORDING
OF THE TEXT AND READ ALONG
QUESTIONS
1.
We understand from the first two paragraphs that
the human immune system and pathogens are in a continual struggle to best
each other/ overcome each other / respond to each other / defeat each other.
Mark the answer that doesn’t fit.
2.
Read the example of the boy who died of anthrax.
What conclusion can be drawn from this example? Ancient pathogens are capable
of…
3.
Although permafrost melts every year, the issue
of diseases is only now becoming a problem because ……………………………
4.
Permafrost is an ideal incubator for pathogens
because …
5.
Go to the following link and read the short
article https://www.newscientist.com/article/dn7064-ice-age-bacteria-brought-back-to-life/ . An important implication of the revival of
the 32 000 year old bacteria is the possibility that…
6.
The danger zone for deadly pathogens which we
have not faced for years is ……in frozen ground.
7.
Read through the list of disease forming
bacteria that may come back to life. What enables them to survive being deep
frozen for thousands of years is the fact that they…
8.
The viruses that go through the same process
also survive provided they are…
9.
The reactivation of ancient pathogens could be
accelerated by …………….
10.
The findings scientists looking into pathogens deep
in the permafrost prove that we are wrong to assume that………
11.
What important conclusion can be drawn from the
findings in the Mexican mine?
12.
What surprising fact emerged concerning the 4
million year old bacteria discovered in the Lechuguilla cave?
13.
What conclusion can be drawn from the above
information?
14.
How did ancient bacteria develop antibiotic
resistance considering that modern antibiotics hadn’t been invented?
15.
How does the writer justify the above
revelation?
16.
What current concern has been proved to be
unfounded by the new research into pathogens? Human activity did not lead to…
17.
What new concern has been raised by the new
research into pathogens?
18.
Read about the two reactions to the findings
concerning pathogens in permafrost. Which view does the writer take? Why?
WRITING TASK
Write an essay in which you discuss the reasons we should be
concerned about melting permafrost.
THERE ARE DISEASES
HIDDEN IN THE ICE, AND THEY ARE WAKING UP
This interesting text
has a lot in common with sci-fi films and TV series concerning pestilences that
wipe out civilization or devastate human populations but the difference is that
this is real. Since it is a completely new topic, it should also have a wow
factor.
1. Respond
to each other (The phrase means “answer”)
2. Lying
dormant and springing back to life / Infection
3. Older
layers of permafrost are melting
4. It
is cold, there is no oxygen and it is dark
5. There
may be life elsewhere in the universe
6. Cemeteries
7. Form
spores
8. Giant
viruses
9. Industrial
exploitation (including mining for gold and minerals, and drilling for oil and
gas)
10.
A virus can be eradicated from the planet
11.
Pathogens cut off from humans will emerge from other places too
12.
The bacteria had become resistant to 18 types of
antibiotics including drugs considered to be a last resort for fighting
infections.
13.
Antibiotic resistance has been around for
millions even billions of years
14.
Many types of fungi even other bacteria
naturally produce antibiotics.
15.
The bacteria are only resistant to natural
antibiotics (which come from fungi and make up about 99.9% of all antibiotics
we use)
16.
Antibiotic resistance
17.
Bacteria emerging from melting permafrost may
already have antibiotic resistance
18.
The second; if the pathogen hasn’t been in
contact with humans for a long time, then our immune system would not be
prepared. So it could be dangerous.
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