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The 1979 MELTDOWN: The story of Three Mile Island
INTRODUCTION:
If the events of March 28, 1979 hadn’t occurred, the Three Mile Island meltdown would never have become one of the most significant incidents in the history of nuclear power plants. On that fateful day, an unfortunate combination of equipment malfunctions and operator errors led to a partial meltdown of reactor number 2 at the Three Mile Island Nuclear Generating Station in Pennsylvania. Had these issues not arisen in tandem, this historical event might not hold its current notoriety.
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SECTION ONE:
On the morning of the accident, a cooling malfunction caused a reactor coolant pump to unexpectedly shut down. If this mechanical failure hadn’t occurred, pressure and temperature levels within the system would have remained stable. However, due to this incident, pressure within the system began to rise—initiating a long chain of events that culminated in disaster. If the operators had been aware that a critical valve was stuck open, they wouldn’t have mistakenly reduced the flow of coolant to the reactor core.
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SECTION TWO:
As things unfolded, workers on-site didn’t immediately grasp the severity of the situation due to inaccurate instrument readings. Consequently, they initiated procedures that ultimately worsened the problem instead of resolving it. If they had known about these incorrect readings beforehand, they could have taken different actions to prevent further harm to the reactor.
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GRAMMAR QUESTIONS:
1. Rewrite the following sentence using the passive voice: Researchers discovered new methods to harness nuclear energy.
2. In the sentence, “Nuclear energy, which is a powerful source of electricity, is considered controversial.” Identify the relative clause and the main clause.
3. Combine the following sentences using an appropriate conjunction: Many people support nuclear energy. Others argue it is dangerous.
4. Identify and correct the misplaced modifier in this sentence: “The scientist presented a report at the conference on nuclear energy hastily prepared.”
5. Turn this statement into an indirect question: “What effect does nuclear energy have on the environment?”
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VIDEO LISTENING SECTION:
QUESTIONS:
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- Where is Three Mile Island?
- What happened?
- When did it happen?
- What is the place called where nuclear energy is produced?
- What is the middle of a reactor called?
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SECTION THREE:
In the aftermath of this meltdown—considered one of the worst nuclear accidents in American history—there emerged significant consequences for both industry regulations and public perception. If this accident had never occurred, there would likely be less skepticism surrounding nuclear energy as well as fewer stringent safety measures set in place.
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SECTION FOUR:
The Three Mile Island disaster offered a sobering reminder of the potential hazards associated with nuclear power. However, if we didn’t draw lessons from the incident, we would be doomed to repeat it. In retrospect, it has served as a catalyst for extensive research and advancements in nuclear regulations to ensure that such an event does not happen again.
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