1. Briefly describe the origin of Hainan Island: under the influence of crustal movement, part of the crust of Qiongzhou Strait broke and sank, and seawater flooded here to form the Strait, thus making the land in the south of the Strait form an island, which is Hainan Island.
2. Describe the topography of Hainan Island: the characteristics of temperature distribution and precipitation distribution in July; Water system and hydrological characteristics of the island; Multiple distribution of traffic lines.
3. The topography of Hainan Island: the central part of Hainan Island is mountainous and the coastal plain is narrow; The terrain is high in the middle and low around.
4. Climate of Hainan Island: tropical monsoon climate, high temperature all year round, divided into dry season and rainy season.
5. The type and shape of Ma 'anling volcano, and the circle where the volcanic eruption material comes from: dormant volcano. Craters are usually funnel-shaped The asthenosphere of the upper mantle.
6. Briefly describe the influence of volcanic eruption in the northern part of Hainan Island on the formation of Hainan Island: the volcanic eruption keeps cooling, solidifying and accumulating, which makes the northern part of Hainan Island expand continuously.
7. With the giant ferry, the railway tracks are directly connected with the ferry warehouse, and the train that transports the whole train across the rivers and lakes is the train ferry. What are the advantages of train ferry? There is no need to turn over the goods on the dock like ship transportation, which avoids the damage, pollution and loss of the goods and saves the loading and unloading cost.