[题目]在一幅地图上.量得北京到天津的直线距离是3厘米.两地实地距离是120千米.这幅地图的比例尺是:A．1:40B．四十万分之一C．图上1厘米代表实地距离400千米D．1:4000000 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】在一幅地图上，量得北京到天津的直线距离是3厘米，两地实地距离是120千米，这幅地图的比例尺是：

A．1：40

B．四十万分之一

C．图上1厘米代表实地距离400千米

D．1：4000000

【答案】D

【解析】

试题分析：

根据比例尺的公式：比例尺=图上距离实地距离=3/12000000=1/4000000，也就是图上1厘米表示实地距离40千米．故选项D符合题意，故选

练习册系列答案

（1）长江发源于山脉，曲折东流注入海．长江因航运价值高，被誉为“ ”．

（2）“东方之星”游轮倾覆地点位于（简称）省境内的长江游河段，这里江宽水深不利于救援工作．

（3）救援期间，该地区正处于（夏季气候特点）的季节，使得长江水位上涨，增大（水文特征）．为此，国家对长江干流上目前最大的水利枢纽进行了三次调度，减少出库流量，为救援创造了有利条件．

（4）浑浊的江水也给救援带来困难，这表明长江（水文特征）较大，主要是由于长江中上游地区植被破坏带来严重的（生态问题）所致．

【题目】北京位于地球五带中的（　　）
A.热带
B.南温带
C.北温带
D.北寒带

【题目】读“中国主要气候类型分布图”，回答下列问题。

（1）写出图中字母所表示的气候类型．

A 气候；C 气候；E 气候．

（2）我国气候复杂多样，带来的有利影响有。（写出1点即可）

（3）我国位于大陆东南部，东临世界第一大洋洋，东部地区分布着世界上最典型的气候．

（4）图中①和②都是（季节）季风，其中①表示（风向）季风。

【题目】目前我国人口增长迅速，将会带来不利的影响是

①消费群体扩大，促进市场经济发展

②劳动力充足，促进生产发展

③资源需求膨胀，人均资源量少

④阻碍经济发展，不利于人民生活水平的提高

A．①③

B．②④

C．①②

D．③④

【题目】A

Do you remember your dreams? Do people have the same dreams? Why do I dream?

There are many questions about dreams. We dream during the REM(快速眼动) stage of sleep. We have about five periods of REM sleep during the night. The first REM cycle(周期) lasts about 10 minutes. As the night goes on, the REM cycle gets longer. By early morning, the REM cycle can last up to 90 minutes. Usually, it is in this last REM cycle that we remember our dreams.

Dreams change as people age. People may have several dreams each night. Some are like films and usually in color. They come to us over and over again. That may be because the dreamer is worrying about something and trying to find the answer. Sometimes we wake up with a good feeling from a dream. But often we can’t remember the dreams clearly.

It is reported that too much dreaming is bad for our health. The more we sleep, the longer we dream. The mind is hard at work. That is why we may have a long sleep and still feel tired when we wake up.

Do you feel a little sleepy after lunch? Well, that’s normal. Your body naturally slows down then. What should you do about it? Don’t drink coffee, take a nap, instead. There are many advantages of a daily nap. First of all, you can remember things better and make fewer mistakes. Also, you can learn things more easily after taking a nap. A 20-minute nap can reduce your pressure. Finally, a nap can make you cheerful.

But, there are some simple rules you should follow about taking a nap. First, take a nap at noon, about eight hours after you wake up. In general, a 20-minute nap is the best. If you sleep longer, you may fall into a deep sleep. After waking up, you will feel worse. Also, you should set an alarm clock. That way, you can fully relax during the nap. You don’t have to keep looking at the clock so that you don’t oversleep. Now, next time you feel sleepy after lunch, don’t get stressed. Put your head down, close your eyes and take a nap.

【1】According to the article, which of the following is true?

A. People always ask questions in their dreams.

B. People never dream in their last REM cycle.

C. The first REM cycle is the shortest of the five.

D. It’s impossible for people to remember their dreams.

【2】According to the article, why do people sometimes have the same dream again and again?

A. Because they are worried about something.

B. Because they often watch interesting color films.

C. Because they want to remember the dream clearly.

D. Because other people ask them too many questions.

【3】The underlined word ＂nap＂ in Paragraph 5 most probably means ＂___________＂.

A. A long walk B. a kind of drink

C. a short sleep D. a deep sleep

【4】According to the article, which of the following is not an advantage of a daily nap?

A. We can run much faster.

B. We can learn things more easily.

C. We can become happier.

D. We can remember things better.

【5】 According to the article, which of the following is true?

A. Dreaming is harmful to our health.

B. The longer we dream, the better we sleep.

C. We should fall into a deep sleep after lunch.

D. We’ll feel better after a 20-minute nap at noon.

【题目】用如图所示的方法可以探究做功是否能够改变物体的内能：

如图1，将手中的铁丝同一位置快速地弯折十余次，用手指触摸一被弯折的部位，会感觉到弯折部位的升高，表明铁丝的内能；如图2，在厚壁的玻璃筒底部放一小撮干燥的棉絮，用力将活塞压下，我们会看到：棉絮了，这表明用力压下活塞时，玻璃筒内的温度并达到棉絮的，所以出现了我们所看到的现象．

上述的这两个现象都说明了是改变物体内能的另一种方式．用能量的观点来分析上述的两个现象，我们发现，用这种方法改变物体的内能时，能量是在能和能之间相互转化的．

【题目】读我国四大地区及景观图，回答下面小题。

【1】四大地理区域与这组景点搭配正确的一组是（）

A. ①─B─南方地区 B. ②─A─南方地区

C. ④─C─青藏地区 D. ③─D─西北地区

【2】图中D区域与其它三大区域界定的主导因素是（）

A. 气温 B. 降水 C. 气候 D. 地形

【题目】关于青藏高原的叙述正确的是（　　）
A.世界最大的高原
B.水土流失严重
C.植被覆盏率高
D.冰川广布

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