Fleas have organ-saving antifreeze
Contents
The Article 2
Warm-ups 3
Before Reading / Listening 4
While Reading / Listening 5
Listening Gap Fill 6
After Reading 7
Discussion 8
Speaking 9
Homework 10
Answers 11
25 October, 2005
Fleas have organ-saving antifreeze 25 October, 2005
THE ARTICLE
Fleas have organ-saving antifreeze
Scientists have discovered new secrets from a tiny snow flea that can
survive in freezing conditions. The fleas contain a protein that could be
very useful for transplant surgery and farming. Researchers from
Queen's University in Ontario, Canada have published a study* about
the flea and its antifreeze properties. The researchers said the
antifreeze could help protect plants or animals from frost. It could also
allow transplant organs to be stored and transported at lower
temperatures. The microscopic, six-legged snow fleas survive by
lowering the freezing point of their bodies by 11 degrees.
Scientists are talking about many possible uses for the new protein.
One is to store transplant organs at cooler temperatures to keep them
for longer. Lead researcher Dr. Laurie Graham said filling an organ with
the antifreeze might prevent it from freezing. She said: You would
have longer to do tissue matching to get the organ to the patient and
just increase the& life of organs. Another possibility could be to allow
crops to survive a cold snap. Dr. Graham said scientists could
genetically modify any crop that didn t like frost to make it stronger in
freezing temperatures.
*http://qnc.queensu.ca/story_loader.php?id=435803469f4c0
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Fleas have organ-saving antifreeze 25 October, 2005
WARM-UPS
1. I AM A FLEA: You are now a flea. Walk around the class and talk to the other
fleas about your everyday life. Where do you like to spend your days? What do you
think of the giant sized life around you? What makes you happy or worried?
2. ANTIFREEZE ADVANTAGES: One day, humans and plants could be
genetically modified to survive in freezing temperatures. What do you think of this? With
your partner(s), talk about the following advantages:
" Transplant organs would last longer in storage.
" Farmers in Finland could grow bananas.
" People could start living on Antarctica.
" We would use less heating fuel and save money.
" More people could successfully climb Mt. Everest.
" Frozen food would last much longer.
" We wouldn t need to wear gloves any more.
" Your idea __________________________________________.
3. CHAT: In pairs / groups, decide which of these topics or words are most
interesting and which are most boring.
Scientists / secrets / snow / fleas / freezing conditions / transplants / farming /
antifreeze / frost / cold snaps / genetically modified crops
Have a chat about the topics you liked. For more conversation, change topics and
partners frequently.
4. FLEA: Spend one minute writing down all of the different words you associate
with fleas. Share your words with your partner(s) and talk about them. Together, put
the words into different categories.
5. TWO-MINUTE DEBATES: Debate each of the points below with a
partner for just two minutes. After two minutes, move on to the next partner and
debate. Student A agrees with the first argument, Student B, the second.
a. Fleas are very useful. vs. Fleas are not useful.
b. Freezing cold weather is best. vs. Boiling hot weather is best.
c. Organ transplantation is wrong. vs. Organ transplantation is important.
d. Crops should not be genetically modified. vs. GM crops are very safe.
e. Humans should be genetically modified to survive the cold better. vs. No way!
f. Scientists research too much. vs. Scientists must explore everything.
g. Fleas are more useful than ants. vs. Ants are more useful than fleas.
h. Having antifreeze in our blood would be useful. vs. I like the way I am now.
6. FLEA USES: In pairs / groups, brainstorm all the possible uses of fleas.
Change partners and add to the uses on your list. Talk about the uses with your
partner(s). Rank them in order of most useful. Change partners again and compare your
ranked lists.
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Fleas have organ-saving antifreeze 25 October, 2005
BEFORE READING / LISTENING
1. TRUE / FALSE: Look at the article s headline and guess whether these
sentences are true (T) or false (F):
a. T / F
Scientists have created fleas that can survive in very cold weather.
b. T / F
Some fleas contain a protein that may help organ transplants.
c. T / F
A protein from a snow flea may help protect plants against frost.
d. T / F
The snow flea can live in temperatures of minus 111 degrees.
e. T / F
Scientists are talking about possible uses for the new protein.
f. T / F
A researcher said filling a car with antifreeze prevents it from freezing.
g. T / F
The researcher said tissues make organs last longer.
h. T / F
The researcher said people could easily snap their fingers in the cold.
2. SYNONYM MATCH: Match the following synonyms from the article:
a.
discovered characteristics
b.
surgery cold weather
c.
properties reducing
d.
frost stop
e.
lowering cold
f.
store found
g.
lead change
h.
prevent keep
i.
cold snap operations
j.
modify head
3. PHRASE MATCH: Match the following phrases from the article (sometimes
more than one combination is possible):
a. Scientists have discovered matching
b. survive in point
c. protect plants or animals uses for the new protein
d. stored and transported freezing conditions
e. freezing snap
f. many possible from frost
g. prevent it from that didn t like frost
h. tissue new secrets
i. allow crops to survive a cold at lower temperatures
j. genetically modify any crop freezing
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Fleas have organ-saving antifreeze 25 October, 2005
WHILE READING / LISTENING
GAP FILL: Put the words in the column on the right into the gaps in the text.
Fleas have organ-saving antifreeze
Scientists have ________ new secrets from a tiny snow flea study
that can survive in freezing conditions. The fleas ________ a
degrees
protein that could be very useful for transplant ________ and
contain
farming. Researchers from Queen's University in Ontario,
survive
Canada have published a ________ about the flea and its
surgery
antifreeze properties. The researchers said the antifreeze
stored
could help ________ plants or animals from frost. It could
also allow transplant organs to be ________ and transported
discovered
at lower temperatures. The microscopic, six-legged snow fleas
protect
________ by lowering the freezing point of their bodies by 11
________.
Scientists are talking about many possible ________ for the modify
new protein. One is to store transplant organs at ________
freezing
temperatures to keep them for longer. Lead researcher Dr.
filling
Laurie Graham said ________ an organ with the antifreeze
stronger
might prevent it from ________. She said: You would have
uses
longer to do ________ matching to get the organ to the
tissue
patient and just increase the& life of organs. Another
possibility could be to allow crops to ________ a cold snap.
survive
Dr. Graham said scientists could genetically ________ any
cooler
crop that didn t like frost to make it ________ in freezing
temperatures.
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5
Fleas have organ-saving antifreeze 25 October, 2005
LISTENING
Listen and fill in the spaces.
Fleas have organ-saving antifreeze
Scientists have discovered new secrets _____ __ _____ snow flea that can
survive in freezing conditions. The fleas contain a protein that could be very
_______ ____ transplant surgery and farming. Researchers from Queen's
University in Ontario, Canada have published ___ ________ ________ the flea
and its antifreeze properties. The researchers said the antifreeze could help
protect plants or animals from _______. It could also allow transplant organs to
be stored and transported at _______ temperatures. The microscopic, six-
legged snow fleas survive by lowering the freezing _______ of their bodies by
11 degrees.
Scientists are talking about many possible _____ _____ the new protein. One is
to store transplant organs at cooler temperatures to keep them ____ _______.
Lead researcher Dr. Laurie Graham said filling an _______ with the antifreeze
might prevent it from freezing. She said: You would have longer ___ ___
_______ matching to get the organ to the patient and just increase the& life of
organs. Another possibility could be to allow crops to survive __ _____ _____.
Dr. Graham said scientists could genetically modify ____ ______ that didn t like
frost to make it stronger in freezing temperatures.
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6
Fleas have organ-saving antifreeze 25 October, 2005
AFTER READING / LISTENING
1. WORD SEARCH: Look in your dictionaries / computer to find
collocates, other meanings, information, synonyms & for the words
snow and flea .
" Share your findings with your partners.
" Make questions using the words you found.
" Ask your partner / group your questions.
2. ARTICLE QUESTIONS: Look back at the article and write down
some questions you would like to ask the class about the text.
" Share your questions with other classmates / groups.
" Ask your partner / group your questions.
3. GAP FILL: In pairs / groups, compare your answers to this exercise.
Check your answers. Talk about the words from the gap fill. Were they
new, interesting, worth learning& ?
4. VOCABULARY: Circle any words you do not understand. In groups,
pool unknown words and use dictionaries to find their meanings.
5. STUDENT FLEA SURVEY: In pairs / groups, write down
questions about fleas and other tiny bugs.
" Ask other classmates your questions and note down their answers.
" Go back to your original partner / group and compare your findings.
" Make mini-presentations to other groups on your findings.
6. TEST EACH OTHER: Look at the words below. With your partner,
try to recall exactly how these were used in the text:
" secrets " uses
" contain " cooler
" published " prevent
" protect " matching
" snap
" stored
" modify
" lowering
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Fleas have organ-saving antifreeze 25 October, 2005
DISCUSSION
STUDENT A s QUESTIONS (Do not show these to student B)
a. Did the headline make you want to read the article?
b. What do you think of fleas?
c. Have you ever had any problems with fleas?
d. Would you like to know more about the microscopic world?
e. What do you think of this new scientific discovery?
f. Can you think of any other uses for the antifreeze protein?
g. Would you like to have the antifreeze protein in your body?
h. Would you eat vegetables that had been genetically modified by the
new antifreeze protein?
i. Do you like the cold?
j. What do you do to keep warm during a cold snap?
STUDENT B s QUESTIONS (Do not show these to student A)
a. Did you like reading this article?
b. What do you think about what you read?
c. How great do you think this discovery is?
d. Do you think tiny bugs have many more secrets?
e. Would you like to work as a scientist and do research on fleas and
other microscopic life?
f. What do you think this discovery means for global farming?
g. Do you think this new discovery might allow people to live in colder
countries?
h. Do you think this discovery might allow scientists to freeze people s
bodies and bring them back to life later?
i. Would you prefer to live in a cold or hot country?
j. Did you like this discussion?
AFTER DISCUSSION: Join another partner / group and tell them what
you talked about.
a. What question would you like to ask about this topic?
b. What was the most interesting thing you heard?
c. Was there a question you didn t like?
d. Was there something you totally disagreed with?
e. What did you like talking about?
f. Do you want to know how anyone else answered the questions?
g. Which was the most difficult question?
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Fleas have organ-saving antifreeze 25 October, 2005
SPEAKING
BUG RESEARCH: You are a scientist. You must choose a bug to research that
you think could greatly help people. In pairs/groups, discuss which of these bugs might
have many secrets to find. In the middle column brainstorm all of the powers and
abilities each bug has. In the right hand column write the possible uses these powers
and abilities might have for humans.
BUG POWERS AND ABILITIES POTENTIAL PRACTICAL APPLICATIONS
Flea
Ant
Worm
Cockroach
Housefly
Spider
Change partners and discuss what you talked about earlier. Compare your ideas.
Decide which bug is the most useful to help mankind.
Give a presentation on your thoughts to the rest of the class. Vote on which is the best
bug.
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9
Fleas have organ-saving antifreeze 25 October, 2005
HOMEWORK
1. VOCABULARY EXTENSION: Choose several of the words from
the text. Use a dictionary or Google s search field (or another search
engine) to build up more associations / collocations of each word.
2. INTERNET: Search the Internet and find more information on fleas.
Share your findings with your class in the next lesson.
3. PROS AND CONS: Make a poster describing the pros and cons of
genetically modified food. Show your posters to your classmates in your
next lesson. Did you all write similar things?
4. DIARY/JOURNAL: You are a flea. Write your diary/journal entry
for one day in your life. Show what you wrote to your classmates in the
next lesson. Did you all write about similar things?
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Fleas have organ-saving antifreeze 25 October, 2005
ANSWERS
TRUE / FALSE:
a. F b. T c. T d. F e. T f. F g. F h. F
SYNONYM MATCH:
a. discovered found
b. surgery operations
c. properties characteristics
d. frost cold
e. lowering reducing
f. store keep
g. lead head
h. prevent stop
i. cold snap cold weather
j. modify change
PHRASE MATCH:
a. Scientists have discovered new secrets
b. survive in freezing conditions
c. protect plants or animals from frost
d. stored and transported at lower temperatures
e. freezing point
f. many possible uses for the new protein
g. prevent it from freezing
h. tissue matching
i. allow crops to survive a cold snap
j. genetically modify any crop that didn t like frost
GAP FILL:
Fleas have organ-saving antifreeze
Scientists have discovered new secrets from a tiny snow flea that can survive in
freezing conditions. The fleas contain a protein that could be very useful for transplant
surgery and farming. Researchers from Queen's University in Ontario, Canada have
published a study about the flea and its antifreeze properties. The researchers said the
antifreeze could help protect plants or animals from frost. It could also allow transplant
organs to be stored and transported at lower temperatures. The microscopic, six-legged
snow fleas survive by lowering the freezing point of their bodies by 11 degrees.
Scientists are talking about many possible uses for the new protein. One is to store
transplant organs at cooler temperatures to keep them for longer. Lead researcher Dr.
Laurie Graham said filling an organ with the antifreeze might prevent it from freezing.
She said: You would have longer to do tissue matching to get the organ to the patient
and just increase the& life of organs. Another possibility could be to allow crops to
survive a cold snap. Dr. Graham said scientists could genetically modify any crop that
didn t like frost to make it stronger in freezing temperatures.
Find More at http://khodamorad.blogfa.com
11
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