Question

    A tornado is a rotating 1 of air from a 2 to the ground. Almost all of them 3 in the area from Texas in the southeast to South Dakota in the north.

     Tornadoes can 4 much destruction. 5 ,there are 800 tornadoes in the US each year. The worst one 6 appeared in 1925,7 three US states. By the time it ended,more than 700 people 8 and 2,700 had been 9 .

    10 are strong 11 storms,which bring about a lot of 12 There are 13 winds of 120 km per hour or more,which cause bad weather. The 14 one happened on the 8 th September 1900,which killed 6,000 people in a population of 37 ,000 and 15 3,600 buildings.

Answer 1

1. column   2. thunderstorm   3. occur 4. cause   5. On average   6. of all time

7. affecting   8. had been killed 9. injured   10. Hurricanes   11. tropical   12. disasters

13. violent   14. worst   15. destroyed/damaged