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Scientists Warn of Space Junk Danger (4th September, 2011)Scientists have warned that the volume of debris floating around in space is becoming a danger to the International Space Station (ISS). Experts say that the time has come to start cleaning it up. America’s space agency NASA estimates that there are around 22,000 objects in orbit that are big enough to track. These include things like spent booster rockets and old satellites. They also say there are countless smaller pieces of scrap that could damage the ISS, space ships travelling to it, and multi-million-dollar satellites. It is such a big problem that the ISS occasionally has to move out of the way to avoid being hit. Donald Kessler, a retired NASA scientist said, "We've lost control of the environment." Space agencies have come up with many plans over the past few decades to address this problem. Agreements to restrict the amount of new space junk had been working. These agreements are supposed to ensure that anything sent into orbit eventually falls back to Earth and burns up. However, in the past four years, the amount of space junk has doubled. In 2007, China blew up a satellite in a missile test, and in 2009 two satellites crashed while in orbit. These two events changed everything and effectively made previous agreements out of date. There have been several suggestions on how to clear the junk. These include launching large magnets or putting giant nets into space to catch dangerous items.
WARM-UPS1. SPACE JUNK: Walk around the class and talk to other students about space junk. Change partners often. Sit with your first partner(s) and share your findings. 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. JUNK: How much of a problem is it and what do we do with it? Complete this table with your partner(s). Change partners and share what you wrote. Change and share again.
4. SPACE TRAVEL: Students A strongly believe space travel is a good thing; Students B strongly believe it isn’t. Change partners again and talk about your conversations. 5. ENVIRONMENT: What should we protect? Rank these and share your rankings with your partner. Put the ones we should protect first at the top. Change partners and share your rankings again.
6. SPACE: Spend one minute writing down all of the different words you associate with the word ‘space’. 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 gapsScientists have warned that ______________________ floating around in space is becoming a danger to the International Space Station (ISS). Experts say that the time has come ______________________. America’s space agency NASA estimates that there are ______________________ in orbit that are big enough to track. These include things like spent booster rockets and old satellites. They also say there are ______________________ of scrap that could damage the ISS, space ships travelling to it, and multi-million-dollar satellites. It is such a big problem that the ISS occasionally ______________________ the way to avoid being hit. Donald Kessler, a retired NASA scientist said, "______________________ the environment." Space agencies ______________________ many plans over the past few decades to address this problem. Agreements to ______________________ of new space junk had been working. These agreements are supposed to ensure that anything sent into ______________________ back to Earth and burns up. However, in the past four years, ______________________ junk has doubled. In 2007, China blew up a satellite in a missile test, and in 2009 two satellites crashed while in orbit. These two events changed everything and effectively made ______________________ of date. There have been several suggestions on how to clear the junk. These include launching large magnets ______________________ into space to catch dangerous items.
AFTER READING / LISTENING1. WORD SEARCH: Look in your dictionary / computer to find collocates, other meanings, information, synonyms … for the words ‘space’ and ‘junk’.
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:
STUDENT SPACE JUNK SURVEYWrite five GOOD questions about space junk 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.
SPACE JUNK DISCUSSIONSTUDENT A’s QUESTIONS (Do not show these to student B)
----------------------------------------------------------------------------- STUDENT B’s QUESTIONS (Do not show these to student A)
LANGUAGE MULTIPLE CHOICEScientists have warned that the (1) ____ of debris floating around in space is becoming a danger to the International Space Station (ISS). Experts say that the time has (2) ____ to start cleaning it up. America’s space agency NASA estimates that there are around 22,000 objects (3) ____ orbit that are big enough to track. These include things (4) ____ spent booster rockets and old satellites. They also say there are countless smaller pieces of scrap that could damage the ISS, space ships travelling to it, and multi-million-dollar satellites. It is (5) ____ a big problem that the ISS occasionally has to move (6) ____ of the way to avoid being hit. Donald Kessler, a retired NASA scientist said, "We've lost control of the environment." Space agencies have come (7) ____ with many plans over the past few decades to address this problem. Agreements to (8) ____ the amount of new space junk had been working. These agreements are supposed to ensure that anything sent into orbit eventually falls back to Earth and (9) ____ up. However, in the past four years, the amount of space junk has (10) ____. In 2007, China blew up a satellite in a missile test, and in 2009 two satellites crashed while in orbit. These two events changed everything and (11) ____ made previous agreements out of date. There have been several suggestions on how to clear the junk. These (12) ____ launching large magnets or putting giant nets into space to catch dangerous items. Put the correct words from the table below in the above article.
WRITINGWrite about space junk 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 space junk. Share what you discover with your partner(s) in the next lesson. 3. SPACE JUNK: Make a poster about space junk. Show your work to your classmates in the next lesson. Did you all have similar things? 4. DEBRIS: Write a magazine article about the problem of space junk. Include imaginary interviews with scientists. 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 space junk expert. Ask him/her three questions about space junk. Give him/her three of your opinions on how to deal with it. 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: Scientists warn of space junk dangerScientists have warned that the (1) volume of debris floating around in space is becoming a (2) danger to the International Space Station (ISS). Experts say that the time has (3) come to start cleaning it up. America’s space agency NASA estimates that there are around 22,000 (4) objects in orbit that are big enough to track. These include things like spent booster rockets and old satellites. They also say there are (5) countless smaller pieces of scrap that could damage the ISS, space ships travelling to it, and (6) multi-million-dollar satellites. It is such a big problem that the ISS occasionally has to (7) move out of the way to avoid being hit. Donald Kessler, a retired NASA scientist said, "We've lost (8) control of the environment." Space agencies have come up with many plans over the (9) past few decades to address this problem. Agreements to (10) restrict the amount of new space junk had been working. These agreements are supposed to (11) ensure that anything sent into orbit eventually falls back to Earth and (12) burns up. However, in the past four years, the amount of space junk has (13) doubled. In 2007, China blew up a satellite in a missile test, and in 2009 two satellites crashed while in orbit. These two events changed everything and effectively made (14) previous agreements out of date. There have been (15) several suggestions on how to clear the junk. These include launching large magnets or putting (16) giant nets into space to catch dangerous items. LANGUAGE WORK
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