The ocean stores more than nine-tenths of the heat. The heat is trapped on Earth by greenhouse-gas emission, （simple sentence）
【正确答案】：The ocean stores more than nine-tenths of the heat trapped on Earth by greenhouse-gas emission.
【题目解析】：以上两个句子都有heat一词，而且heat还是第二个句子的主语。所以我们可以把第二个句子变成过去分词做后置定语来修饰heat，将其变成一句单句。
