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Global Warming to Shrink Fish by 24% (1st October, 2012)
The size of fish in the oceans is shrinking. A new report from the University of British Columbia in Canada states fish may shrink by as much as a quarter in the coming decades because of global warming. The research team conducted extensive tests on the effect of rising ocean temperatures on the size and number of over 600 species of fish around the world. They concluded that most fish are likely to shrink in size by 14-24 per cent by the year 2050. The biggest changes will be seen in tropical regions. The scientists said there is less oxygen in warmer water so fish cannot grow at the rate they should. They added that many fish will migrate to cooler waters outside the tropics. Lead researcher Professor William Cheung said: "We were surprised to see such a large decrease in fish size. Marine fish are generally known to respond to climate change through changing distribution and seasonality. But the unexpectedly big effect that climate change could have on body size suggests that we may be missing a big piece of the puzzle of understanding climate change effects in the ocean." He added that human activities such as overfishing and pollution will worsen the problem: "Our work shows a very concerning future for the oceans and so it is very important to reduce greenhouse gas emissions and develop better fish management policies to adapt to these changes," he said. WARM-UPS1. SHRINKING FISH: Walk around the class and talk to other students about shrinking fish. Change partners often. Share your findings with your first partner. 2. CHAT: In pairs / groups, decide which of these topics or words from the article are most interesting and which are most boring.
Have a chat about the topics you liked. Change topics and partners frequently. 3. CONCERNED: What things worry you about the future of the Earth? Complete this table with your partner(s). Change partners often and share what you wrote.
4. PLENTY: Students A strongly believe the oceans will always have plenty of fish; Students B strongly believe otherwise. Change partners again and talk about your conversations. 5. HUMAN ACTIVITY: Rank these things that affect our life and share your rankings with your partner. Put the worst things at the top. Change partners often.
6. GLOBAL WARMING: Spend one minute writing down all of the different words you associate with the term 'global warming'. Share your words with your partner(s) and talk about them. Together, put the words into different categories. BEFORE READING / LISTENING1. TRUE / FALSE: Read the headline. Guess if a-h below are true (T) or false (F).
2. SYNONYM MATCH: Match the following synonyms from the article.
3. PHRASE MATCH: (Sometimes more than one choice is possible.)
WHILE READING / LISTENINGGAP FILL: Put the words into the gaps in the text.
LISTENING – Listen and fill in the gapsThe size of fish (1) ______________________ shrinking. A new report from the University of British Columbia in Canada states fish may shrink by as much as a quarter (2) ______________________ because of global warming. The research team conducted (3) ______________________ the effect of rising ocean temperatures on the size and number of over 600 species of fish around the world. They (4) ______________________ fish are likely to shrink in size by 14-24 per cent by the year 2050. The biggest changes will be (5) ______________________. The scientists said there is less oxygen in warmer water so fish cannot grow at the rate they should. They added that many fish will (6) ______________________ waters outside the tropics. Lead researcher Professor William Cheung said: "We were surprised to see (7) ______________________ in fish size. Marine fish are generally known to respond to climate change through changing distribution and seasonality. But (8) ______________________ effect that climate change could have on body size suggests that we may be missing a big (9) __________________ of understanding climate change effects in the ocean." He added that human activities (10) ______________________ and pollution will worsen the problem: "Our work shows a very (11) ______________________ the oceans and so it is very important to reduce greenhouse gas emissions and develop better fish management policies (12) ______________________ changes," he said.
AFTER READING / LISTENING1. WORD SEARCH: Look in your dictionary / computer to find collocates, other meanings, information, synonyms … for the words 'climate' and 'change'.
2. ARTICLE QUESTIONS: Look back at the article and write down some questions you would like to ask the class about the text.
3. GAP FILL: In pairs / groups, compare your answers to this exercise. Check your answers. Talk about the words from the activity. 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. TEST EACH OTHER: Look at the words below. With your partner, try to recall how they were used in the text:
SHRINKING FISH SURVEYWrite five GOOD questions about shrinking fish in the table. Do this in pairs. Each student must write the questions on his / her own paper. When you have finished, interview other students. Write down their answers.
SHRINKING FISH DISCUSSIONSTUDENT A's QUESTIONS (Do not show these to student B)
----------------------------------------------------------------------------- STUDENT B's QUESTIONS (Do not show these to student A)
LANGUAGE – MULTIPLE CHOICEThe size of fish in the oceans is shrinking. A new report from the University of British Columbia in Canada states fish may shrink (1) ____ as much as a quarter in the (2) ____ decades because of global warming. The research team conducted extensive tests on the effect of rising ocean temperatures on the size and number of over 600 (3) ____ of fish around the world. They concluded that most fish are (4) ____ to shrink in size by 14-24 per cent by the year 2050. The biggest changes will be seen in (5) ____ regions. The scientists said there is less oxygen in warmer water so fish cannot grow at the rate they should. They added that many fish will (6) ____ to cooler waters outside the tropics. Lead researcher Professor William Cheung said: "We were surprised to see such a large decrease in fish size. Marine fish are (7) ____ known to respond to climate change through changing distribution and seasonality. But the unexpectedly big effect that climate change could have on body size (8) ____ that we may be missing a big piece of the (9) ____ of understanding climate change effects in the ocean." He added that human activities such as overfishing and pollution will worsen the problem: "Our work shows a very (10) ____ future for the oceans and so it is very important to (11) ____ greenhouse gas emissions and develop better fish management policies to (12) ____ to these changes," he said. Put the correct words from the table below in the above article.
WRITINGWrite about shrinking fish for 10 minutes. Correct your partner's paper. _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ HOMEWORK1. 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 out more about global warming. Share what you discover with your partner(s) in the next lesson. 3. SHRINKING FISH: Make a poster about the shrinking fish. Show your work to your classmates in the next lesson. Did you all have similar things? 4. CONCERNED: Write a magazine article about concerns over the shrinking size and number of fish. Include imaginary interviews with a fisherman/fisherwoman and a consumer. Read what you wrote to your classmates in the next lesson. Write down any new words and expressions you hear from your partner(s). 5. LETTER: Write a letter to a global warming expert. Ask him/her three questions about the Earth's rising temperature. Give her/him three of your opinions. Read your letter to your partner(s) in your next lesson. Your partner(s) will answer your questions.
ANSWERSTRUE / FALSE:
SYNONYM MATCH:
PHRASE MATCH:
GAP FILL: Global warming to shrink fish by 24%The size of fish in the oceans is (1) shrinking. A new report from the University of British Columbia in Canada states fish may shrink by as (2) much as a quarter in the coming decades because of global warming. The research team conducted (3) extensive tests on the effect of rising ocean temperatures on the size and number of over 600 (4) species of fish around the world. They concluded that most fish are (5) likely to shrink in size by 14-24 per cent by the year 2050. The biggest changes will be seen in tropical (6) regions. The scientists said there is less oxygen in warmer water so fish cannot grow at the (7) rate they should. They added that many fish will migrate to cooler waters (8) outside the tropics. Lead researcher Professor William Cheung said: "We were surprised to see such a large (9) decrease in fish size. Marine fish are generally known to (10) respond to climate change through changing distribution and seasonality. But the unexpectedly big (11) effect that climate change could have on body size suggests that we may be missing a big (12) piece of the puzzle of understanding climate change effects in the ocean." He added that human activities such as (13) overfishing and pollution will worsen the problem: "Our work shows a very (14) concerning future for the oceans and so it is very important to reduce greenhouse gas (15) emissions and develop better fish management (16) policies to adapt to these changes," he said. LANGUAGE WORK
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