Question

6．他从没想到保护水资源的文化和社会因素也应被列入考虑范围．（occur）It never occurred to him that the cultural and social aspects of protecting the water resource should also be taken into account/consideration．．

Answer 1

分析 It never occurred to him that the cultural and social aspects of protecting the water resource should also be taken into account/consideration．

解答 本句表达的是自己过去的一种想法，所以用一般过去时，但是从句中的时态为一种常识性的认识，用一般现在时．
it为形式主语，that引导的为一主语从句，且为被动语态．
sth occurr to sb意为"某人想到某事"；take sth into account/consideration意为"将某因素考虑在内"．

点评 注意代词it用作形式主语的用法，为了避免头重脚轻多用于主语从句中．