【題目】在爬山的過程中小明他們遇到了降雨,你認(rèn)為這種雨最有可能是( )
A.對流雨B.地形雨C.臺(tái)風(fēng)雨D.鋒面雨
【答案】B
【解析】
根據(jù)空氣上升運(yùn)動(dòng)的原因和形式,把降水分成三種主要類型:對流雨、地形雨、鋒面雨.對流雨是空氣受熱膨脹上升,一般在氣溫較高,比較炎熱的赤道地區(qū),容易形成對流雨;地形雨是濕潤氣流受到山地的阻擋,被迫“爬升”,在迎風(fēng)坡形成地形雨,地形雨多發(fā)生在山地迎風(fēng)坡;鋒面雨是冷暖空氣相遇,暖空氣比較輕,被冷空氣“抬升”,形成降水.我國東部大部分地區(qū)的降水是鋒面雨,進(jìn)行分析解答。
濕潤空氣水平運(yùn)動(dòng)時(shí),遇到山地,暖濕氣流被迫沿山坡爬升,隨著海拔升高,氣溫降低,容易成云至雨,這種降雨類型被稱為地形雨。因此小明他們遇到的降雨是地形雨。故選項(xiàng)B符合題意。故選:B。
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