Set the Scene:
Let’s start with some engaging questions to connect your everyday life to the subject of secret underground places in America. Have you ever wondered what lies beneath your city’s streets? Have you heard stories about hidden tunnels or underground cities? What do you think it would be like to live in a self-sufficient underground community? How do you think people would adapt to living underground? What kind of amenities and infrastructure would be necessary for an underground city to thrive?
Featured Image Analysis & Prediction:
Look at the featured image and describe what you see. What do you think this activity will be about based on this image? Do you see any clues that might suggest the topic of secret underground places in America?
Introduction:
Read the introduction to the activity and get a sense of what secret underground places in America are all about. You’ll learn about Raven Rock, a secret underground city carved out by the US government, and other historic underground areas like Atlanta’s downtown area and New York City’s hidden underground world.
Video Engagement:
Watch the video associated with the activity: https://www.youtube.com/watch?v=VKbU0HY4zwE. Pause the video at the following points:
- When the video mentions the world’s oldest subway tunnel in Brooklyn’s Atlantic Avenue.
- When the video talks about the SubTropolis in Kansas City.
- When the video discusses the Cheyenne Mountain Complex in Colorado.
At each pause point, reflect on or discuss the following questions:
- What do you think is the most interesting or surprising fact about the world’s oldest subway tunnel?
- How do you think the SubTropolis in Kansas City contributes to the city’s economy and infrastructure?
- What do you think are the most important features of the Cheyenne Mountain Complex that make it a highly secure facility?
For more information about the activity, visit the original post: https://maestrocursos.com.br/quizzed-esl-activities/30-hidden-underground-cities-in-america/.
Key Vocabulary:
Review the key vocabulary related to secret underground places in America, including terms like Raven Rock, Permafrost Tunnel, SubTropolis, and Cheyenne Mountain Complex. Make sure you understand the definitions and example usage of each term.
Vocabulary Quiz:
Take the vocabulary quiz to test your understanding of the key terms. Choose the correct answer for each question:
- Which word means ‘a place that is safe from harm or danger’?
- What is the term for ‘a layer of soil and rock that remains frozen throughout the year’?
- Which word means ‘a system of pipes, tracks, and other structures that support a city or building’?
- What is the term for ‘a self-contained and isolated place that has all the necessary resources for survival’?
- Which word means ‘a place or structure that is built or located underground, often for protection or secrecy’?
Check your answers with the answer key.
Grammar Focus:
Review the grammar focus on the use of the past perfect tense. Understand how it is formed using the auxiliary verb “had” + the past participle of the main verb. See examples from the text, such as “The area had been a commercial district before it was rebuilt.” and “The tunnel had been built in 1844 before it was rediscovered in 1980.”
Grammar Quiz:
Take the grammar quiz to test your understanding of the past perfect tense. Choose the correct answer for each question:
- By the time the city was rebuilt, the old district ____________________ for over a century.
- The secret underground world in New York City ____________________ by the time the new subway system was built.
- Before the fire in 1889, the area that is now the Seattle Underground ____________________ as a normal part of the city.
- The SubTropolis in Kansas City ____________________ by the time it became a major business complex.
- By the time the Cold War ended, the Cheyenne Mountain Complex ____________________ as a secure facility for decades.
Check your answers with the answer key.