问题 解答题

一个与三角形等底等高的平行四边形,它的面积是三角形面积的一半.______.

答案

因为三角形的面积=底×高÷2,平行四边形的面积=底×高,

若三角形和平行四边形等底等高,

则三角形的面积是平行四边形面积的一半;

故答案为:×.

完形填空
Six-year-old Brandon decided to make pancakes for his parents. He should first take the flour(面粉), so he   46  the cupboard and pulled out the heavy flour bag. He put some flour   47  the bowl with his hands, mixed in a cup of milk and added some sugar.
Soon Brandon was  48  flour and getting frustrated, He wanted this to be   49  for Mum and Dad, but it was getting very bad. He didn't know what to do   50 .
Suddenly he saw his cat near the bowl and went to push it away, but he   51  the egg box to the floor. He tried to   52  but slipped(滑倒) on the eggs, getting his clothes   53 . Just then, he saw his dad standing at the door.
Brandon's eyes were full of tears. He was   54  his dad would beat him, but his father didn't.   55 , he picked up his crying son and kissed him.
That's what we sometimes face in   56 . We try to do something good, but it turns into a mess. Sometimes we just   57  there in tears because we can't think of anything else to do. Hopefully, that's   58  someone close to us picks us up, loves us and forgives us. But we can't    59  trying to "make pancakes" for "Dad" or for others. Sooner or later we'll get it   60 , and then they'll be glad we tried.
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小题2:
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小题3:
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小题11:
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