题目内容
5.当阳光照射到地球上时,它就被转换成热量和能量.When the sunshine falls on the earth,itis turned into heat and energy.
分析 is turned into heat
解答 答案:is turned into heat.主语it是trrn into的承受者,表达的时客观事实用一般现在时的被动语态be+过去分词,主语it故is,故答案是is turned into heat
点评 被动语态由"助动词be+及物动词的过去分词"构成.被动语态的时态变化只改变be的形式,过去分词部分不变.疑问式和否定式的变化也如此.
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