Ethiopian highlands.Because it is difficult to cross,the desert has formed a barrier between the cultures of North Africa and the rest of the continent.The lack of water in the desert has limited the amount of arable land in the area. Rivers like the Yangtze in China are important for food production.The Yangtze flows eastward from the mountains of Tibet to the East China Sea.It is China's longest river. Because much of China is mountainous,people settle around rivers like the Yangtze to take advantage of the water and the rich soil.The Yangtze also provides fish for food.In addition,it serves as an important means of transportation,as well as communication. Each of these two geographic features has had a major influence on the development of the regions in which they are located.The nations and civilizations that developed around these features have adapted to their geography. 说明：当总分出现0.5分时，在总分上加1分取整。 208Ethiopian highlands. Because it is difficult to cross, the desert has formed a barrier between the cultures of North Africa and the rest of the continent. The lack of water in the desert has limited the amount of arable land in the area. Rivers like the Yangtze in China are important for food production. The Yangtze flows eastward from the mountains of Tibet to the East China Sea. It is China' s longest river. Because much of China is mountainous, people settle around rivers like the Yangtze to take advantage of the water and the rich soil. The Yangtze also provides fish for food. In addition , it serves as an important means of transportation , as well as commUniCatIOn. Each of these two geographic features has had a major influence on the development of the regions in which they are located. The nations and civilizations that developed around these features have adapted to their geography. 说明:当总分出现 5分时，在总分上加1分取整。 208