题目

请问这句话用了什么英语语法,这是什么句型,主谓宾是什么,
With this approach,the space for actions and behavioral alternatives become explicit – a crucial step for sustainable urban planning which calls for innovative strategies to adapt to these uncertain and rapid changes.
通过这种方法,成为明确的行动和行为选择的空间——可持续的城市规划要求创新战略,以适应这些不确定和快速变化的一个关键步骤.

提问时间：2020-06-11

答案

本句子主干为主系表句型,状语：With this approach,主语：the space （定语：for actions and behavioral alternatives）,系动词：become,表语：explicit.破折号后面的内容补充解释主句,中心词为step（定语：for sustainable urban planning ）, 后面的句子为定语从句（which calls for innovative strategies to adapt to these uncertain and rapid changes.）,先行词为step（定语从句中做主语）,定语从句中谓语是calls for,宾语是innovative strategies,宾语补足语是to adapt to these uncertain and rapid changes.