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1: A．that B．how C．why D．if 小题2: A．careless B．blind C．dead D．real 小题3: A．hill B．tower C．sky D．building 小题4: A．cats B．frogs C．dogs D．birds 小题5: A．stopped B．enjoyed C．began D．forgot 小题6: A．popular B．terrible C．weekly D．common 小题7: A．divided B．added C．changed D．caught 小题8: A．together B．alone C．so D．almost 小题9: A．hold B．lose C．keep D．fall 小题10: A．from B．into C．after D．by