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问题 选择题

如图所示的加热方式叫“热水浴”。针对“热水浴”，下列说法错误的是  

 

A．三脚架上应该垫上石棉网

B．试管内试剂受热比较均匀(和用酒精灯直接加热相比)

C．如果试管中盛有硬度较大的硬水，长时间加热不会有任何变化

D．如果试管中为饱和的石灰水，加热后试管中出现浑浊

答案

答案：C

A、使用三脚架时上边放石棉网，石棉网上放盛有水的烧杯，说法正确；

B、用酒精灯直接加热温度变化快，而水浴加热试管内试剂受热比较均匀，说法正确；

C、试管中盛有硬度较大的硬水，长时间加热钙、镁离子会转化为沉淀，说法错误，

D、温度升高，氢氧化钙的溶解度减小，则试管中为饱和的石灰水时，加热后试管中出现浑浊，说法正确，；

故选C

完形填空

A  man was sitting in his doctor’s office. He was telling the doctor about his problem.

“I like football, you know, doctor,” he said. “And my wife has never been good to me since I became interested in it. She often hears me shouting in my dreams. Night after night, when I close my eyes, I’m out there on the field and running after a flying ball. When I wake up, I always feel tired. I’m getting thinner and thinner. So, what am I going to do?”

The doctor sat back and said, “First, you will have to try your best not to dream about football. When you close your eyes, try to think about something else. Try to think, for example, that you are at a party or someone is going to give you several million dollars.”

“Are you crazy, doctor?” the man shouted, “I’ll miss my ball then!”

小题1:The man went to his doctor’s office because   .

A．he was asked to talked about the footballs

B．he wanted to get some medicine

C．he wanted to get some ideas about his problems

D．he could not go to sleep at night小题2:The man always felt tired when he woke up because    .

A．he often got up during the night to play football

B．he thought of his football even in his dreams

C．he had a lot of housework to do at night

D．he often ran after the flying ball during the night小题3:The doctor told the man     .

A．not to dream in his sleep

B．not to think of football when he was sleeping

C．to close his eyes when he was lying in bed

D．to play with a rich man and ask for several million dollars小题4:From the passage we find that   .

A．football is one of the most popular games

B．the man’s wife was also a football fan

C．football made the man’s life terrible

D．the doctor always told his patients to became rich小题5:The best title for this story would be   .

A．A Crazy Doctor

B．A Man Crazy about Football

C．A Football Fan and His Wife

D．Exciting Football Games
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综合

关注家乡北京。（19分）

为丰富校园活动，学校准备在12月开展野外实践活动，基本选定位于城区西南的门头沟区作为活动地点。

（1）门头沟区地势较_______________，以_______________地形为主。

（2）如果要开展定向越野活动，所选择的地图应该是_________（选择填空）。

A．门头沟区旅游景点分布图

B．门头沟区等高线地形图

C．北京市地形图

D．北京市城区分布图（3）老师在选择越野路线时，一般会避开下图中的____________图所示的地形。

（4）同学们在前往活动地的途中看到一条大河，大家认为，根据北京市的地势特点判断，这条河的流向应该是从________________方向流往____________方向。

（5）你们能否根据下边北京市气温曲线和降水柱状图判断这条河流在学校组织野外考察时的水量较________________（多或少）。请你先根据表格中的数据把下图补充完整，再判断北京最低气温一般出现在_________月，其气温值大约是__________℃，此时该河流一般会出现_________________现象。

月平均值6月7月8月
气温℃24.726.124.9
降水mm77.8192.5212.3

（6）今夏以来雨情“豪爽”，雨量已超常年同期。但雨量分布不均，对不同地区有“偏心”。今年汛期以来，门头沟区雨量与大兴区相差百余毫米，门头沟区降水一般来讲_________（多或少）于大兴区。北京市降水受地形影响明显：一般在____________（地形）的迎风坡降水较多。地形也影响气温变化，海拔越高，气温越________________。
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