You have probably heard the expression，“It’s raining cats and dogs outside．”That means 16 it’s raining very hard I not that 17 cats and dogs are falling from the 18 ．However，one day in June，1882，it really did rain 19 over Dubuque，Iowa．The frogs 20 falling along with hailstones(冰雹)during a 21 storm．
Hail is formed when drops of rainwater are 22 by heavy winds and are carried high up into the air．There the raindrops become frozen．Many drops may freeze 23 to form balls of ice；these ice balls，or hailstones，then 24 to earth．
During the storm in Dubuque，the strong winds lifted small frogs from nearby ponds(池塘) 25 the air along with raindrops．When some of these frogs became covered with ice，both hailstones and“frog-stones”fell onto the ground．
| 小题2: | | A．careless | B．blind | C．dead | D．real |
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| 小题3: | | A．hill | B．tower | C．sky | D．building |
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| 小题4: | | A．cats | B．frogs | C．dogs | D．birds |
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| 小题5: | | A．stopped | B．enjoyed | C．began | D．forgot |
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| 小题6: | | A．popular | B．terrible | C．weekly | D．common |
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| 小题7: | | A．divided | B．added | C．changed | D．caught |
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| 小题8: | | A．together | B．alone | C．so | D．almost |
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