辽宁马鞍山市2014
高考英语阅读理解、动词短语精讲讲练(31)及答案 we experience different forms of the sun’s energy every day. we can see its light and feel its warmth. the sun is the major source of energy for our planet. it causes the evaporation (蒸发) of water from the oceans and lakes. sunlight also provides the energy used by green plants to make