"China is big! It is the 4th largest country in the world. It is just a little smaller than the USA. But some geographers disagree and say that China is larger. It all depends on how you measure."
中国很大！按面积是世界第 4 大国。比美国略小一点。但有些地理学家不同意，说中国更大——这取决于怎么测量。
📊 世界前 5 大国（按面积排）
排名
国家
面积（百万 km²）
1
Russia 俄罗斯
17.1
2
Canada 加拿大
10.0
3
USA 美国
9.83
4
⭐ China 中国
9.60
5
Brazil 巴西
8.51
PPT 说"取决于怎么测量"是什么意思？
💡 几个原因：① 是否算水域？中国领海广，加上水域面积会变大。② 是否算争议领土？中国主张台湾 / 阿克赛钦等地区，美国主张同样有争议地区，统计口径不同会有差异。③ 是否算特别行政区（香港、澳门）？算上跟不算上数字不一样。所以"3rd vs 4th"这个排名经常在各种统计里反复——你都要知道这个争议。
🐼 PPT Starter · 5 个 China Facts（必背）
① Giant panda 大熊猫 "The Giant panda lives in the mountains of China and nowhere else on earth."
大熊猫住在中国的山里，地球上其他地方都没有。具体地区：四川、陕西、甘肃的竹林山区。
② Population 人口 "China has the largest population. This means that 1/5 of the world are Chinese."
中国是人口大国（虽然现在 2026 年印度可能已经超过——PPT 写于 2024，那时中国还是第一）。大约 1/5 的地球人是中国人。
③ Great Wall 长城 "The Great Wall of China can be seen from space."
长城可以从太空看见。注意：这是个流行说法，但实际上有争议——宇航员证词说只能在低轨道勉强看到，月球高度根本看不到。PPT 信息按教材考。
④ Housing 住房 "Over the past decade China built enough houses to cover two UK's."
过去十年中国建的房子面积可以覆盖两个英国。展示中国的城市化速度。
⑤ Economy 经济 "China is the second largest economy in the world."
中国是世界第二大经济体（第一是美国）。 奖励 fact："Half the world's pigs live in China." 全世界一半的猪在中国（猪肉消费量大）。
PPT 给的这些 facts 都讲了"中国大 / 多 / 强"。但"大"一定是好事吗？
💡 "大"有两面： ① 好处：资源多、市场大、经济体量大、文化多样、人才多 ② 挑战：管理复杂（14 亿人）、地区差异大（沿海 vs 西部）、环境压力（建房 + 猪养殖 + 工业）、外交复杂（与 14 个邻国接壤） 所以中国的"大"是机会 + 挑战并存的。L7e 会用 PEEL 框架来评价这个。
🗺️ China 在世界中的位置
大洲：Asia 亚洲（东亚）
东侧：Pacific Ocean 太平洋 + Yellow Sea 黄海 + South China Sea 南海
教材"The River Xi flows to the Pearl River Delta."（西江流入珠江三角洲）
延伸① Pearl River Delta (PRD) 珠三角，中国制造业中心（广州/深圳/东莞/佛山）② 是中国 GDP 最高的城市群之一
📝 学习内容
核心理解：中国气候 = 多样 + 季风主导
🌡️ 中国气候多样性（PPT 第 7 页）
The north of China is sub-arctic. 北部接近亚北极（哈尔滨冬天 -30°C）
The far south in the tropics. 最南部是热带（海南 / 三亚 全年 25°C+）
中国从北到南横跨多个气候带——这种纬度跨度是其他大国少有的
🌬️ Monsoon 季风（PPT 必考机制 4 步）
"Land heats up faster than the sea in summer. It heats the air, which rises fast. This draws moist monsoon winds in from the sea, bringing plenty of monsoon rain from the south east."
夏天陆地比海洋升温快。陆地加热空气，空气快速上升。这"吸引"潮湿的季风从海上吹来，从东南方向带来大量季风雨。
📐 季风形成 4 步（必背）
陆地热得快（Land heats up faster than the sea in summer）—— 因为陆地比水比热容小，太阳照同样时间，陆地温度上升更快
陆地空气上升（heats the air, which rises fast）—— 热空气密度小，往上飘
低气压区形成 + 海风吹入（draws moist monsoon winds in from the sea）—— 陆地空气上升后形成"空缺"，海上潮湿空气来填补
海风带来大量雨（bringing plenty of monsoon rain from the south east）—— 中国主要从东南方向（太平洋）来雨
👉 夏季 = 暖湿东南风（带雨）；冬季 = 冷干西北风（少雨）。这就是季风气候的核心特征。
🌡️ 海陆温差（PPT 第 7 页）
"Large land masses heat up fast in the summer, and cool fast in the winter. So inland, away from the sea, you find big temperature differences in the summer and winter."
大块陆地夏天升温快，冬天降温也快。所以内陆（远离海洋的地方）的冬夏温差很大。
典型对比：
沿海（上海）：夏 32°C，冬 5°C，年差约 27°C
内陆（乌鲁木齐）：夏 35°C，冬 -25°C，年差约 60°C
🏜️ Cold Desert 冷沙漠（PPT 必考概念）
"China's deserts are cold deserts. They may get warm and hot in the summer, but are very cold in the winter, and at night."
中国的沙漠都是冷沙漠。夏天可能很热，但冬天和夜里非常冷。
📏 Desert 的定义（必背）
"Any place with less than 25 mm of rain a year is considered a desert, even if it's cold."
任何年降水量小于 25 毫米的地方都算沙漠，哪怕它是冷的。
The plain, largely the product of erosion from the surrounding highlands with fertile black soils.
这片平原主要是周围高地侵蚀的产物，土壤是肥沃的黑土。
The Northeast Plain is China's major soybean-growing area, and it also produces corn (maize), rice, wheat, sorghum, sugar beets, and flax.
东北平原是中国大豆主产区，也产玉米、水稻、小麦、高粱、甜菜和亚麻。
It is also an important base of heavy industry with an extensive system of railways.
这里也是重要的重工业基地，铁路系统发达。
The major industrial cities on the plain are Harbin, Shenyang (Mukden), and Changchun.
主要工业城市是哈尔滨、沈阳（旧称穆克登）、长春。
📄 The Yangtze Basin（Activity PPT 第 8 页）
The Yangtze basin is well watered; the average yearly rainfall amounts to about 43 inches (1,100 mm).
长江流域水分充沛；年降水量约 43 英寸（1100 毫米）。
Most of the precipitation is brought by the monsoon and often leads to floods.
大部分降水由季风带来，经常引发洪水。
The Yangtze basin contributes nearly half of China's crop production, including more than two-thirds of the total volume of rice.
长江流域贡献了中国近一半的农作物产量，包括超过 2/3 的水稻产量。
Inland cities such as Chongqing and Shanghai are among China's most important industrial centers.
重庆和上海等内陆/沿江城市是中国最重要的工业中心。
📄 Gobi Desert（Activity PPT 第 9 页）
The Gobi means "waterless place" in Mongolian.
"戈壁"在蒙古语里意为"无水之地"。
The Gobi is a cold desert. The annual temperature range is considerable, with average lows in January reaching −40 °C and average highs in July climbing to 45 °C.
戈壁是冷沙漠。年温差很大：1 月平均最低 -40°C，7 月平均最高 45°C。
These deserts sustain many animals, including black-tailed gazelles, wild Bactrian camels, and are occasionally visited by snow leopards.
这些沙漠支持很多动物，包括黑尾羚羊、野生双峰骆驼，偶尔有雪豹来访。
The Gobi Desert is expanding at an alarming rate, in a process known as desertification.
戈壁沙漠正以惊人速度扩张，这个过程叫做沙漠化。
📄 Plateau of Tibet（Activity PPT 第 10 页）
The plateau is a high-altitude arid grassland scattered with mountain ranges and large lakes.
青藏高原是高海拔干旱草原，分布着山脉和大湖。
The southern and eastern edges of plateau are home to nomadic herdsmen.
高原南部和东部边缘是游牧民族的家园。
The north of the plateau is higher, colder and drier with permafrost covering extensive parts.
高原北部更高、更冷、更干，大片地区覆盖永久冻土。
The Changthang region is the least populous region in Asia, and the third least populous area in the world after Antarctica and northern Greenland.
羌塘地区是亚洲人烟最稀少的区域，也是世界第 3 人烟最少的地方（仅次于南极洲和北格陵兰）。
The Tibetan Plateau is sometimes called "the Roof of the World" because it stands over 3 miles (4.8 km) above sea level.
示例："The Pacific Ocean connects China to North and South America."
EExplain 解释 — 解释这个证据为什么重要
示例："Most countries export manufactured goods via container ships. Bordering the Pacific Ocean means China can trade with large economies like the USA, Canada and Brazil."
👉 P + E + E = 一个段落的"分论点"。一篇评价文用 2–3 个 P-E-E 段就能拿高分。
🎯 PPT Task：评价中国的地理位置（5 个维度）
PPT 第 12 页给了 5 个 "Geographical features" 影响国家发展：
Access to an ocean 是否临海
Water supply 水源
Climate 气候
Terrain 地形
Surrounding countries 邻国
📝 中国地理位置评价 · 完整范文（3 段 PEEL，约 180 词）
段 1：Access to ocean（正面）
P: China's eastern coastline along the Pacific Ocean is a major advantage for development. E: China has over 18,000 km of coastline, with major ports in Shanghai, Tianjin, and Shenzhen. E: This means China can trade easily with large economies like the USA, Japan, Australia, and Brazil via container shipping. Coastal location is one of the main reasons China became the world's second-largest economy.
段 2：Climate (monsoon)（双面）
P: China's monsoon climate is both a blessing and a challenge. E: The Yangtze Basin receives about 1,100 mm of rain a year, supporting more than 2/3 of China's rice production. E: However, monsoon rains often cause severe floods along the Yangtze, killing thousands of people in the worst years. So while monsoon makes Chinese agriculture possible, it also creates costly disaster risks.
段 3：Terrain (mountains in the west)（负面）
P: China's western terrain creates obstacles to development. E: The Tibetan Plateau averages 4,800 m above sea level, and the Gobi Desert covers vast portions of the north — both are largely unable to support large populations or modern industry. E: This means roughly half of China's land is sparsely populated, while the eastern third is extremely crowded. The geography creates a permanent east-west development gap that China has tried to solve through projects like the "Western Development Strategy."
L4 人类迁徙 → 现代中国人是 Out of Africa 后约 5 万年前到达东亚的 Homo sapiens
L5 地方 → 上海属于 Yangtze Basin；北京属于 Northeastern；中国的 Sela 类比是西藏游牧民
L6 Sense of Place → 中国作为整体的"sense of place"：5000 年历史 + 14 亿人共同的身份认同
第三部分：Sem 1 最终大题（综合应用）
💡 题：Imagine you are giving a 5-minute speech to visitors at the Shanghai World Expo about "China through a geographer's eyes". Use what you learned in L1–L7 to organize your speech.
建议结构（5 段）：
① Intro：China is the 4th largest country, in Asia. Today I'll share China through a geographer's eyes — physical, human, and environmental.
② Physical：4 regions + 3 rivers + Tibetan Plateau as Roof of World.
③ Human：14 邻国 + 1.4 billion population + cities in Yangtze + east-west gap.
④ Environmental：monsoon (blessing + flood) + desertification of Gobi + Tonga-like climate change concerns.
⑤ Sense of Place：China has a strong shared sense of place rooted in 5,000 years of history + the Yellow/Yangtze "mother rivers" + Roof of World pride.
✅ 学完小检查（3 题）
1. 我能写一段 PEEL（含 Point + Evidence + Explain）评价中国某个地理特征
2. 我能把 L1–L7 7 章的核心概念串起来讲
3. 我能用三分支（L1）+ 5 维度（L7）评价中国地理对发展的影响
💡 课件原句中英对照（Activity PPT 第 11–12 页 PEEL）。
📄 Lesson Recap（Activity PPT 第 11 页）
Describe some of China's Physical landscape features.
描述中国一些物理景观特征。
How does China's physical geography landscape effect its economic or social development?
中国的物理地理景观如何影响其经济或社会发展？
📄 PEEL 框架（Activity PPT 第 12 页）
Geographical features that affect a country's development: Access to an ocean · Water Supply · Climate · Terrain · Surrounding countries.
影响国家发展的地理因素：是否临海 · 水源 · 气候 · 地形 · 邻国。
PEEL Example: Access to Ocean
PEEL 范例：是否临海
Point: China borders the ocean.
论点：中国临海。
Evidence: The Pacific Ocean connects China to North and South America.
证据：太平洋把中国和南北美洲连接起来。
Explain: Most countries export manufactured goods via container. Bordering the Pacific Ocean means China can trade with large economies like the USA, Canada and Brazil.
解释：大多数国家通过集装箱出口制造品。临太平洋意味着中国能和美国、加拿大、巴西等大经济体贸易。
📄 Task（Activity PPT 第 12 页）
Task 1: Mind map the features that affect a country's development.
任务 1：用思维导图列出影响国家发展的因素。
Task 2: Create a list of positives and negatives of China's location.
任务 2：列出中国位置的正面和负面。
Task 3: PEEL a 3-point paragraph evaluating the positives and negatives of China's Location.
选最稳的：Russia / Mongolia / India / Vietnam / Kazakhstan
✅ 满分示范："China's 5 main neighbors are: (i) Russia, (ii) Mongolia, (iii) India, (iv) Vietnam, (v) Kazakhstan."
🗺️ 题型 2：Describe 描述区域（Climate / Relief / Economy）
例题：Describe the Yangtze Basin.
怎么答 · 3 步：
讲 Climate 气候（含年降水）
讲 Relief 地形（含海拔 / 土壤）
讲 Economy 经济（含农作物 / 城市）
✅ 满分示范："The Yangtze Basin has a subtropical monsoon climate with 1,100 mm of rain per year. Its low fertile plains produce 2/3 of China's rice. Major industrial cities include Chongqing and Shanghai."
⚖️ 题型 3：Compare 两区对比
例题：Compare Northeastern Plain and Yangtze Basin.
怎么答 · 3 步：
先相同：都是平原 + 肥沃
再不同：气候差异（冷 vs 湿）
用 However / whereas
✅ 满分示范："Both Northeastern Plain and Yangtze Basin are flat and fertile. However, the Northeastern is cold (sub-arctic), whereas the Yangtze is humid subtropical with monsoon rains."
🏆 题型 4：Explain how X affects Y（PEEL 框架）
例题：Explain how China's western terrain affects its development.
怎么答 · 3 步 (PEEL)：
Point：给观点
Evidence：给具体数字 / 名词
Explain：用 "This means..." 把事实变成意义
✅ 满分示范："P: China's western terrain seriously limits development. E: The Tibetan Plateau averages 4,800 m elevation with permafrost; the Gobi Desert covers vast northern areas. E (This means): agriculture and industry are very limited in the west, creating a permanent east-west development gap."
🌊 题型 5：Evaluate 评价题（正反两面）
例题：Evaluate China's monsoon climate for agriculture.
怎么答 · 3 步：
说"mixed blessing"（既好又坏）
给正面：带来雨 → 种水稻
给负面：洪灾 → 损失
✅ 满分示范："China's monsoon climate is a mixed blessing. Positive: it brings essential rain (1,100 mm/year in the Yangtze Basin) that supports 2/3 of China's rice production. Negative: it also causes destructive floods that can kill thousands."
📌 L7 章 3 个 A* 关键：
① 具体数字（4000m / 1100mm / -40°C / <25mm 沙漠定义）
② 专有名词（Yangtze / Gobi / monsoon / Tibetan Plateau）
③ PEEL 结构（评价类题必用）