|"do without" = lacking something essential|
"If space travelers had to do without fresh water for very long, they wouldn't be able to survive."
"at the drop of a hat" = immediately, willingness to do something without delay
"I'd travel to the moon at the drop of a hat if I had the chance."
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[ Quiz Script ]
||news report||one man||01:37|
What threats exist in outer space that could affect life on earth?
|I. Pre-Listening Exercises [Top]|
HELPFUL TIP: Some astronomers believe that our future is in outer space. Learning to appreciate and understand space rather than fear it can help humankind prepare for it.|
1. Listen to the conversation by pressing the Play Audio button and answer the questions. Press the "Final Score" button to check your quiz.
|II. Listening Exercises [Top]
[ Other Audio Option: Play Window Media ]
What are three specific things that world governments can do, individually or collectively, to prevent or minimize the impact of future catastrophes such as huge meteors and asteriods of this kind on a global scale? Use the Internet to research the topic of asteriod avoidance strategies or plans for planetary defense of such events.
|III. Post-Listening Exercises [Top]|
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