Listen and read.
Tom: You look pretty sad, Mi. What's the matter?
Mi: My uncle called us this morning. Our hometown has been affected by a flood. It’s the second time this year.
Tom: I'm sorry to hear that. How are things there now?
Mi: My uncle, his wife, and his children are all safe. They moved everything to the second floor of their house last night. Are there natural disasters in your hometown in the US?
Tom: Yes, we sometimes have tornadoes.
Mi: Tornadoes? Sounds strange. What's a tornado?
Tom: It’s a violent storm that moves in a circle with very strong winds. I still remember the tornado we had last year.
Mi: What happened?
Tom: One evening my parents and I were having dinner. Suddenly, we heard a very loud noise. When we looked out of the window, we saw a big funnel of wind moving towards us.
Mi: Did it cause any damage?
Tom: Yes, a lot. It damaged the roof of our house and pulled up some trees in our yard. Fortunately, no one was hurt.