WORLD CAVES - Listening


Read the  set of tasks before you watch the passage. There are two types of tasks:

a) answering questions  about details or reasons

b) deciding whether the statement is true or false
     If you decide that the statement is false, explain why.



Cave of Swallows in Mexico

1.      True or false?   Cave of Swallows in Mexico was discovered shortly after the first man
landed on the Moon.

 2. What is the depth of the main shaft?    - …………………


A cave in USA
 3.  True or false?   Limestone walls which are now hundreds of meters above the sea level in the
USA  have no link with the sea.


 4. Where else can such an example be found?
a)

b)


 5. True or false?   The power of water is less erosive underground.
 6. What is the result of the reaction with water?  ……………


North America


7.      Explain when water in caves does not only erode, but also builds.
      Water is loaded with ……………………..     …………………………
      which deposits as …………………………….
 8. What is formed when stalactite meets stalagmite? -  ……………………….

Some other words:
………………………………………     …………………………………………

………………………………………     …………………………………………




 9. Do you happen to know the word for a thin (long) stalactite?   ………………………………






Tasks: Věra Hranáčová