地球上的水第二节 大规模的海水运动（The water on the earth second large-scale movement of water）.docVIP

地球上的水第二节 大规模的海水运动（The water on the earth second large-scale movement of water） The third chapter of water on earth second large-scale seawater movement First, teaching objectives [Objective] knowledge 1. to master the concept of ocean currents, understand the internal relations and the formation of the prevailing wind. 2. to master the distribution of surface currents of the world. To understand the effects of 3. currents on the geographical environment. [Objective] ability 1. through the analysis of current, the integration of knowledge. 2. by summarizing the world ocean surface current distribution map, ability of geography space thinking and image thinking and comprehensive analysis of geographic information processing. 3. through the impact currents on the geographical environment of learning, to cultivate students ability of theory and practice. Two, teaching focus and difficulty [key] 1, the world distribution of the surface currents. 2. The influence of currents on the geographical environment. [difficult] The formation of the 1 and current relationship with the prevailing wind. 2, the impact of climate and ocean marine distribution. Three, the process of teaching [introduction] on four hundred and sixty-five thousand ton Titanic, was known as the worlds largest and most secure cruise from England to New York, in Southamptons maiden voyage, unfortunately hit an iceberg and sank in the Atlantic ocean. You know the Atlantic is how these icebergs here? [answer] with the currents, is brought from the Arctic cold labrador. [answer] thinking concept and classification of ocean currents [summary] a display and distribution of surface currents of the world 1 - ocean currents in the ocean, perennial steadily along a certain direction for the mass flow, called ocean currents. 2, according to the nature: warm, cold From the sea to warm - water temperature high low sea currents, called warm. Cold - from sea water temperature in the low flow high sea currents, called the