什么是国家？
What is a country?
国家是一片有边界的地方，住在里面的人有共同的政府和规则。地图上不同颜色的区域，常常就是不同的国家。
A country is an area with borders where the people share a government and a set of rules. The differently coloured areas on a map are often different countries.
难度 入门 · 适合 小学低段(6-8)
CC BY 4.0 · 已核验 · Verified 2026-08-23
来源 · Source
Anthony Giddens,《Sociology》Polity Press 多版;中译《社会学》北京大学出版社
A. Giddens, Sociology, Polity Press, various editions; Chinese ed. Peking University Press
#国家 #边界
地址为什么要写得那么详细？
Why does an address have to be written in so much detail?
地址像一层层的抽屉，从国家、城市写到街道和门牌号，一步步把范围缩小。写得越清楚，信件和快递就越不容易送错。
An address works like nested drawers, moving from country and city down to street and house number, narrowing the area step by step. The clearer it is, the less likely letters and parcels go to the wrong place.
难度 入门 · 适合 小学低段(6-8)
CC BY 4.0 · 来源待核验 · Source pending review
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出处备注：本题原挂出处与答案内容不符，已撤回；具体书目待补，暂不展示来源。
本题原挂出处与答案内容不符，已撤回；具体书目待补。
Previous citation withdrawn as unsupported for this answer; a specific source is pending.
#地址 #层级
为什么地图的上方通常是北？
Why is north usually at the top of a map?
这是绘图的人长期形成的约定，让大家用同一种方式读地图。指北针指着北方，上方是北就容易把地图和真实方向对齐。
It is a long-standing agreement among mapmakers so that everyone reads maps the same way. A compass needle points north, so north at the top makes it easy to line the map up with real directions.
难度 入门 · 适合 小学低段(6-8)
CC BY 4.0 · 来源待核验 · Source pending review
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出处备注：本题原挂出处与答案内容不符，已撤回；具体书目待补，暂不展示来源。
本题原挂出处与答案内容不符，已撤回；具体书目待补。
Previous citation withdrawn as unsupported for this answer; a specific source is pending.
#方向 #北方
地图上蓝色的地方是什么？
What are the blue parts on a map?
地图上蓝色的地方一般是水，比如海洋、湖泊和河流。绿色和棕色的地方一般是陆地。
The blue parts on a map are usually water, like oceans, lakes, and rivers. The green and brown parts are usually land.
难度 入门 · 适合 幼儿(3-6)
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：本题原挂出处与答案内容不符，已撤回；具体书目待补，暂不展示来源。
本题原挂出处与答案内容不符，已撤回；具体书目待补。
Previous citation withdrawn as unsupported for this answer; a specific source is pending.
#地图 #颜色
地图是什么？
What is a map?
地图是把一个地方从高高的天上往下看的样子画在纸上。看着地图，你就知道公园和家在哪个方向。
A map is a drawing of a place as if you looked down on it from high in the sky. Looking at a map shows you which way the park and your home are.
难度 入门 · 适合 幼儿(3-6)
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：本题原挂出处与答案内容不符，已撤回；具体书目待补，暂不展示来源。
本题原挂出处与答案内容不符，已撤回；具体书目待补。
Previous citation withdrawn as unsupported for this answer; a specific source is pending.
#地图 #方向
为什么寄信要写邮政编码？
Why do letters need a postal code?
邮政编码用几个数字代表一小片区域，机器一读就知道信该送往哪里。这比读长长的地址快得多，也更少出错。
A postal code uses a few digits to stand for a small area, so a machine can tell at once where a letter should go. That is much faster than reading a long address and makes fewer mistakes.
难度 入门 · 适合 小学低段(6-8)
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：本题原挂出处与答案内容不符，已撤回；具体书目待补，暂不展示来源。
本题原挂出处与答案内容不符，已撤回；具体书目待补。
Previous citation withdrawn as unsupported for this answer; a specific source is pending.
#邮编 #邮政
为什么很多大城市建在河边或海边？
Why are many big cities built beside rivers or the sea?
河流和海港提供饮水、灌溉，还让船只能把货物运进运出。运输方便的地方生意兴旺，人口就慢慢聚集成大城市。
Rivers and harbours supply drinking water and irrigation, and they let boats carry goods in and out. Where transport is easy, business thrives and people gradually gather into large cities.
难度 入门 · 适合 小学高段(9-12)
CC BY 4.0 · 已核验 · Verified 2026-10-04
来源 · Source
Fujita, Krugman & Venables,《The Spatial Economy: Cities, Regions, and International Trade》(MIT Press, 1999)
Fujita, Krugman & Venables, The Spatial Economy: Cities, Regions, and International Trade (MIT Press, 1999)
独立核验依据 · Independent verification: 核验依据 1 ISBN 9780262303606 (1999)
#城市 #水运
为什么平面地图上的形状会有些变形？
Why are shapes a little distorted on a flat map?
地球是球形的，把球面摊平必然要拉伸或挤压某些地方。因此每种画法都有取舍，有的保住形状，有的保住面积或方向。
Earth is a sphere, and flattening a curved surface always means stretching or squeezing some parts. So every mapping method trades something off, keeping shapes accurate while giving up area, or the other way round.
难度 入门 · 适合 小学高段(9-12)
CC BY 4.0 · 已核验 · Verified 2026-11-04
来源 · Source
Kerkovits,《A Low-Distortion Oblique Map Projection of the World’s Landmasses》,Cartographic Perspectives,2024 (DOI: 10.14714/cp103.1833)
Kerkovits, 'A Low-Distortion Oblique Map Projection of the World’s Landmasses', Cartographic Perspectives, 2024, DOI: 10.14714/cp103.1833
独立核验依据 · Independent verification: 核验依据 1 Crossref DOI 10.14714/cp103.1833
#投影 #变形
地图上的比例尺是做什么用的？
What is the scale on a map for?
比例尺告诉你地图上的一小段代表现实中多长的距离。量一量纸上的长度，就能算出真的要走多远。
A scale tells you how much real distance a short length on the map stands for. By measuring on paper, you can work out how far you would really travel.
难度 入门 · 适合 小学低段(6-8)
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：本题原挂出处与答案内容不符，已撤回；具体书目待补，暂不展示来源。
本题原挂出处与答案内容不符，已撤回；具体书目待补。
Previous citation withdrawn as unsupported for this answer; a specific source is pending.
#比例尺 #距离
首都是什么样的城市？
What kind of city is a capital?
首都是一个国家安排主要政府机构办公的城市，重要的会议和对外接待常在这里进行。它不一定是全国最大或最富的城市。
A capital is the city where a country places its main government offices, and important meetings and official visits usually happen there. It is not necessarily the largest or richest city in the country.
难度 入门 · 适合 小学高段(9-12)
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：本题原挂出处与答案内容不符，已撤回；具体书目待补，暂不展示来源。
本题原挂出处与答案内容不符，已撤回；具体书目待补。
Previous citation withdrawn as unsupported for this answer; a specific source is pending.
#首都 #城市
家为什么要有门牌号？
Why does a home have a house number?
门牌号像你家的名字，让邮递员和客人知道该敲哪一扇门。没有号码，大家很容易走错地方。
A house number is like your home's name, so mail carriers and visitors know which door to knock on. Without numbers, people would easily go to the wrong place.
难度 入门 · 适合 幼儿(3-6)
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：本题原挂出处与答案内容不符，已撤回；具体书目待补，暂不展示来源。
本题原挂出处与答案内容不符，已撤回；具体书目待补。
Previous citation withdrawn as unsupported for this answer; a specific source is pending.
#地址 #门牌
手机导航是怎么知道我在哪里的？
How does phone navigation know where I am?
天上有一批导航卫星不停发出带时间的信号，手机接收到几颗卫星的信号后，比较它们到达的时间差。用这些差值算出距离，就能定出自己的位置。
A set of navigation satellites in space constantly broadcasts time-stamped signals, and a phone compares the arrival times of signals from several of them. Turning those tiny time differences into distances lets it work out where you are.
难度 入门 · 适合 小学高段(9-12)
CC BY 4.0 · 已核验 · Verified 2026-11-02
来源 · Source
国务院新闻办公室《2021中国的航天》白皮书：北斗卫星导航定位原理（2022）
SCIO white paper 'China's Space Program: A 2021 Perspective': BeiDou positioning principle, 2022
独立核验依据 · Independent verification: 核验依据 1 ISBN 9787010245362（豆瓣书目条目: 2021中国的航天）
#导航 #卫星
地图上的经线和纬线有什么用？
What are the lines of longitude and latitude on a map for?
这些线织成一张网，让地球上任何一点都能用两个数字准确表示。船长、飞行员和导航软件靠这套坐标，就能说清自己在哪里。
These lines weave a grid so that any point on Earth can be described exactly with two numbers. Ship captains, pilots, and navigation apps use those coordinates to say precisely where they are.
难度 入门 · 适合 小学高段(9-12)
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：本题原挂出处与答案内容不符，已撤回；具体书目待补，暂不展示来源。
本题原挂出处与答案内容不符，已撤回；具体书目待补。
Previous citation withdrawn as unsupported for this answer; a specific source is pending.
#经纬度 #定位
街道为什么有名字？
Why do streets have names?
街道有了名字，我们说位置的时候才说得清楚。你告诉朋友你在花园路，他就能找到你。
Once streets have names, we can say where things are clearly. If you tell a friend you are on Garden Road, your friend can find you.
难度 入门 · 适合 幼儿(3-6)
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：本题原挂出处与答案内容不符，已撤回；具体书目待补，暂不展示来源。
本题原挂出处与答案内容不符，已撤回；具体书目待补。
Previous citation withdrawn as unsupported for this answer; a specific source is pending.
#街道 #名字