听说教程第三单元关于天气的英文介绍.ppt

What is the weather today?,Important Words and Expressions Primary weather Disastrous weather Discussion,Main point,weather centre 气象中心,Make yourself be familiar with the following expressions and learn to use them:,Important Words and Expressions,weather bureau bjuru气象局,weatherman/weatherperson 气象播报员,weather ship 气象观测船,weather station 气象站,Todays Graphic 今 日 气 象 图,Make yourself be familiar with the following expressions and learn to use them:,Important Words and Expressions,Five day forecast 未 来 五 天 预 报,Weather Forecast 天 气 预 报,oceanic climate 海洋性气候,continental climate 大 陆 性 气 候,Visibility（能见度）,SAMPLE:,常温 恒温 空气温度 水温,Important Words and Expressions,room temperature constant temperature air temperature water temperature,Important structures,Sunshine,The day was bright, with a fresh breeze blowing. The clouds are pale and a light breeze is blowing. People usually like sunny days because it will give people a happy and comfortable feeling.,Cloud,Cloudy refers to many clouds in the sky and it is not very sunny. But people still can see the sky from the gap in the clouds. Cloudy often give people a feeling of oppression.,Rain,Terrible rain, it rains cats and dogs. The wind is blowing heavily, and the tress are shaking in the wind, It is dark and cold.,Fog,The fog was so thick that it was impossible to see more than a foot or so. Buses，cars and taxis were not able to run and were standing by the side of the road,Snow,The snowflakes began to fall quietly.Soon the land before my eyes was all white，like a beautiful blanket.Then it snowed more and more heavily.The trees were all covered with white quilts.The whole city became a silver world.,Haze,Its foggy and there is haze in the air. So, we cant see the things very far. Every morning, when pulling back the curtain, I only can see the building dozens miles away. Besides, the air is dirty because of the haze. I even feel hard to breathe. People have to wear a respirator to protect themselves.,Typhoon,A Pacific typhoon or tropical storm is a tropical cyclone that forms in the northwestern Pacific Ocean. The basin is demarcated within the Pacific Ocean from Asia, north of the equator, and west of the international date line.,Typhoon,Storms from the Eastern and Central Pacific crossing the date line are re-designated as typhoons. This basin features the strongest cyclones on record.,Tornado,Tornadoes are associated with high-speed rotation of the funnel-shaped cloud of strong wind vortex. Tornado wind speed near the center up to 100m / s 200m / s, maximum 300m / s, than the maximum wind speed near the center of typhoon.,Tornado,Central pressure is very low, as low as 400hPa, the lowest up to 200hPa. It has great sucking effect, can the sea (lake) water suction from the sea (lake) side to form a water column, and then connecting with the cloud, commonly known as “Dragon water.“ As the tornado is extremely thin internal air, and the temperature rapidly decreases, water vapor quickly condenses, forming funnel cloud is an important reason,snowstorm,The snowstorm is a natural form of climate disasters. The wind drifts the caused snow. And the wind does not bring a trouble for us, but the number of wind snow makes us terrified. A strong wind can bring snow to lift from the ground to add them to the falling snow