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问题 填空题

直角三角形斜边上的高与中线分别是5cm和7cm，则它的面积是______cm2．

答案

∵直角三角形斜边上的中线7cm，

∴斜边=2×7=14cm，

∴它的面积=

1
2
×14×5=35cm2．

故答案为：35．

阅读理解

请根据短文内容，判断句子正（A）误（B）

Lingling is going to(表示计划、准备、打算) have a party on Saturday night．She has to shop and clean the house． She is shopping for the food on Saturday morning． Her friends like hamburgers and ice cream．In the afternoon , she's cleaning the living room and kitchen．She wants to go to the movies at 3:00 , but she has to babysit her brother from 2:00 to 4:00．The party is at 7:00． Judy is coming to the party．She wants to help Lingling on Saturday , but she can't．She has a soccer game in the morning．And in the afternoon , she's going to her uncle's house．She's coming to the party at 8:00．

Ann isn't busy this Saturday．On Saturday morning she is going to buy a present（礼物） for Lingling． In the afternoon she is going to help Lingling with the cleaning． She wants to come to the party at 7:00．

小题1:Lingling can go to the movies on Saturday afternoon．

小题2:Judy is coming to the party at 8:00．

小题3:Judy is coming to help Lingling with the shopping．

小题4:Ann is busy on Saturday．

小题5:Lingling's party is on Saturday night．
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单项选择题

气厥实证反复发作的原因，常是

A．精神刺激

B．头部外伤

C．嗜食肥甘

D．思虑过度

E．先天禀赋
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