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Date: Aug 11, 2006
Level: Harder (Try the easier lesson.) Downloads: Word Doc | PDF Doc | Listening Audio: (2:04 - 242.6 KB - 16kbps)
THE ARTICLEScientists discover gene to waterproof riceBiologists have identified a gene that will allow rice plants to survive being submerged in water for up to two weeks over a week longer than at present. Plants under water for longer than a week are deprived of oxygen and wither and perish. The scientists hope their discovery will prolong the harvests of crops in regions that are susceptible to flooding. Rice growers in flood-prone parts of Asia lose an estimated $US one billion annually to excessively waterlogged rice paddies. They hope the new gene will lead to a hardier rice strain that will reduce the financial damage incurred in typhoon and monsoon seasons and lead to bumper harvests. This is good news for people in these vulnerable regions, who suffer from food shortages as a result of heavy rains. Rice yields must increase by 30 per cent over the next 20 years to ensure a billion people can receive their staple diet. The research was carried out by teams from the University of California and the International Rice Research Institute. Their findings have been published in the science journal Nature. Dr David Mackill, one of the paper's authors, said scientists had been trying to develop a water resistant breed of rice without success for half a century. He explained that: "Several traditional rice varieties have exhibited a greater tolerance to submergence, but attempts to breed that tolerance into commercially viable rice failed to generate successful varieties." Another team member, Dr Pamela Ronald, added: "Our research team anticipates that these newly developed rice varieties will help ensure a more dependable food supply for poor farmers and their families." The discovery is bound to add food for thought to the debate on the need for genetically modified rice. WARM-UPS1. STAPLE FOOD: Look at these staple foods from around the world. Talk with your partner(s) about how important each are to you. Research the ones you don’t know:
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. For more conversation, change topics and partners frequently. 3. VERSATILE: Rice is one of the most versatile foods in the world. Which of these ways of eating rice from around the world sound delicious to you?
4. QUICK DEBATE: Students A believe the water-resistant rice is a great idea. Students B believe any kind of genetically modified food is dangerous. Debate this with your partners. Change partners often. 5. OPINIONS: In pairs / groups, write down the opinions of the following people or creatures on the new water-resistant rice. Change partners and exchange opinions. Talk about whether or not you agree with these opinions.
6. RICE: Spend one minute writing down all of the different words you associate with rice. Share your words with your partner(s) and talk about them. Together, put the words into different categories. 7. GM: Brainstorm a list of natural produce. Write down how each could be genetically modified. Share your ideas with your partner(s). Would you eat the genetically modified produce you discussed? BEFORE READING / LISTENING1. TRUE / FALSE: Look at the article’s headline and guess whether these sentences are true (T) or false (F):
2. SYNONYM MATCH: Match the following synonyms from the article:
3. PHRASE MATCH: Match the following phrases from the article (sometimes more than one combination is possible):
WHILE READING / LISTENINGGAP FILL: Put the words in the column on the right into the gaps in the text. Scientists discover gene to waterproof rice
LISTENINGListen and fill in the spaces. Scientists discover gene to waterproof riceBiologists have identified a gene that will allow rice plants to survive being submerged in water for up to two weeks over a week longer than at present. Plants under water for longer than a week are _______________ oxygen and wither and perish. The scientists hope their discovery will prolong the harvests of crops in regions that are susceptible to flooding. Rice growers in _______________ of Asia lose an estimated $US one billion annually to excessively waterlogged rice paddies. They hope the new gene will lead to a _______________ strain that will reduce the financial damage _______________ typhoon and monsoon seasons and lead to bumper harvests. This is good news for people in these vulnerable regions, who suffer from food shortages as a result of heavy rains. _______________ must increase by 30 per cent over the next 20 years to ensure a billion people can receive their _______________. The research was carried out by teams from the University of California and the International Rice _______________. Their findings have been published in the science journal Nature. Dr David Mackill, one of the paper's authors, said scientists had been trying to develop a water resistant _______________ without success for half a century. He explained that: "Several traditional rice varieties have exhibited a greater tolerance to _______________, but attempts to breed that tolerance into commercially _______________ to generate successful varieties." Another team member, Dr Pamela Ronald, added: "Our research team anticipates that these newly developed rice varieties will help ensure a _______________ food supply for poor farmers and their families." The discovery is _______________ food for thought to the debate on the need for genetically modified rice. AFTER READING / LISTENING1. WORD SEARCH: Look in your dictionaries / computer to find collocates, other meanings, information, synonyms … for the words ‘wither’ and ‘perish’.
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. STUDENT “RICE” SURVEY: In pairs / groups, write down questions about rice and its being genetically modified.
6. TEST EACH OTHER: Look at the words below. With your partner, try to recall exactly how these were used in the text:
DISCUSSIONSTUDENT A’s QUESTIONS (Do not show these to student B)
STUDENT B’s QUESTIONS (Do not show these to student A)
AFTER DISCUSSION: Join another partner / group and tell them what you talked about.
SPEAKINGGM FOOD: With your partner(s), create the advertising copy for the following new products:
Change partners and exchange your ideas. Decide on who has the best adverts. 2-MINUTE RICE DEBATES: Face each other in pairs and engage in these fun 2-minute debates. Students A take the first argument, students B the second. Change partners often.
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 more information about rice. Talk about what you discover with your partner(s) in the next lesson. 3. STAPLE FOOD: Research staple foods from around the world. Show where different staples are grown around the world and the different ways they are used. 4. LETTER: Write a letter to the biologists who discovered the gene for the water resistant rice. Tell them what you think of their discovery. Ask them three questions. Read your letter to your classmates in the next lesson. Your partner(s) will answer your questions. Which letter did you like best and why? ANSWERSTRUE / FALSE:
SYNONYM MATCH:
PHRASE MATCH:
GAP FILL: Scientists discover gene to waterproof riceBiologists have identified a gene that will allow rice plants to survive being submerged in water for up to two weeks over a week longer than at present. Plants under water for longer than a week are deprived of oxygen and wither and perish. The scientists hope their discovery will prolong the harvests of crops in regions that are susceptible to flooding. Rice growers in flood-prone parts of Asia lose an estimated $US one billion annually to excessively waterlogged rice paddies. They hope the new gene will lead to a hardier rice strain that will reduce the financial damage incurred in typhoon and monsoon seasons and lead to bumper harvests. This is good news for people in these vulnerable regions, who suffer from food shortages as a result of heavy rains. Rice yields must increase by 30 per cent over the next 20 years to ensure a billion people can receive their staple diet. The research was carried out by teams from the University of California and the International Rice Research Institute. Their findings have been published in the science journal Nature. Dr David Mackill, one of the paper's authors, said scientists had been trying to develop a water resistant breed of rice without success for half a century. He explained that: "Several traditional rice varieties have exhibited a greater tolerance to submergence, but attempts to breed that tolerance into commercially viable rice failed to generate successful varieties." Another team member, Dr Pamela Ronald, added: "Our research team anticipates that these newly developed rice varieties will help ensure a more dependable food supply for poor farmers and their families." The discovery is bound to add food for thought to the debate on the need for genetically modified rice.
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