I often hear or read about "natural disasters" - the eruption of Mount St Helen----- Nội dung dịch tự động từ ảnh ----- ng passage then choose the best answer A, B, C or . I often hear or read about "natural disasters" - the eruption of Mount St Helen (a volcano in the state of Washington), Hurricane Andrew in Florida, the floods in the American Midwest, terrible earthquakes all over the world, huge fires and so on. But I'll never forget my first personal experience with the strangeness of nature -"the London Killer Fog" of 1952. It began on Thursday, December 4th when a high-pressure system (warm air) cover southern England. With the freezing-cold air below, heavy fog formed. Pollution from factories, cars, and coal stoves mixed with the fog. The humidity was terribly high and there was no breeze at all. Traffic (cars, trains, and boats) stopped. People couldn't see and some walked onto the railroad tracks or into the river. It was hard to breathe, and many people got sick. Finally on Tuesday, December 9th, the wind came and the fog went away. But after that, even more people got sick, many of them died. 36. Which natural disaster is NOT mentioned in the text? Aa volcanic eruption Ba hurricane Ca tornado 37. What is his unforgettable personal experience? A.the strangeness of nature B.the heavy fog in London C.a high-pressure system 38. What did NOT happen during the time of the London Killer Fog? Aheavy rain Bhumidity 39. The traffic stopped because of Athe heavy fog Bthe windy weather Cpollution 40. How long did the London Killer Fog last? Cthe humid weather Afor six days Bfor a week Cfor five days |