问题
填空题
已知梯形的面积为20cm2，高4cm，那么梯形的中位线长等于______ cm．
答案
设该梯形的中位线的长等于x，则2x=20，x=5
故该梯形的中位线的长等于5cm．
故答案为：5．
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已知梯形的面积为20cm2，高4cm，那么梯形的中位线长等于______ cm．
设该梯形的中位线的长等于x，则2x=20，x=5
故该梯形的中位线的长等于5cm．
故答案为：5．
It was a Sunday afternoon. It was very __and nobody wanted to stay at home. Mike decided to go swimming in the river. His brother,Jim.wanted to go with him. “___him with you, Mike” said their father.” he will do what you say, I think.” They got _the river quickly. A lot of people were __in it. Mike told Jim to play in the bank,then he __into the river. About an hour later, Mike swam to the bank with a fish in his hand. Jim was very ___. He found a bottle and put the fish in it. Jim did__except(除了) watching the fish that evening. Suddenly Mike heard Jim__in the room. He ran to him and asked,” what’s wrong__you, Jim?” “ The fish has died,” Jim said “I thought it was ___. So I took it out of the bottle and put it on the chair, I only wanted it to have a rest.”
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