Read the article. Match the definitions with the words.

Exercise 1 1. float (v) - D (move slowly on the water or in the air) 2. cowboy - A (a man who rides a horse and looks after cows) 3. campfires - E (outdoor fires made by people who are sleeping outside) 4. headlights - F (the large, bright lights at the front of a car) 5. determined - C (made a definite decision to do something) 6. geology - B (the scientific study of what the Earth is made of) Exercise 2 1. A (Marfa is a small town.) 2. C (The lights aren't always the same colour.) 3. B (thought he was seeing fires far away.) 4. D (different air temperatures.) 5. C (James Bunnell was strongly affected by seeing the lights.) 6. B (The Marfa lights have an interesting cause.) Exercise 3 1. False (The text says they appear to float just above the Earth, not high above the ground.) 2. True (The text says "people report seeing them for many years".) 3. False (The text says he "was determined to find out".) 4. True (He has a theory about the explanation.) Exercise 4 (Sample answers) - I can't believe what we saw - the lights were amazing. They might be a trick, but who knows! - I definitely think the lights are cars driving on the highway. Maybe the air temperature creates a mirror effect. Exercise 5 (Sample answers) - Are the lights related to the traffic on the nearby highway? - Does the number of cars change the frequency of the light appearances? - What specific weather conditions are present when the lights appear most brightly?