A一些被称为海洋建造大师的深海生物可以建造复杂的房屋来保护自己并捕获食物。1.B.根据第一段中的 They can build complex houses that provide protection and huut food可知,它们可以建造复杂的房屋来保护自己并捕获食物。2.A.根据第二段中的 Some people think studying larvaceans'houses could help the building incustly if scientists can understand how they make them可知,该项研究能给建筑行业的人们提供灵感。3.A.根据第四段中的 When their houses are used up, the creatures drop millions of tons of carbon to the seafloor. It stays there preventing global warming可知,当这些房子被耗尽时,这些生物会将数百万吨的碳排放到海底,这碳可以阻止全球变暖。由此判断它们是对环境有利的。