题目

阅读下面短文，在空白处填入1 个适当的单词或括号内单词的正确形式。Childhoods were greatly changing, with fewer opportunities to spend time outdoors, researchers【1】 (observe).The loss of exposure to the【2】 (nature) environment would have negative long-term consequences, they warned. Setting up【3】 “outdoor learning center” would help teachers, and help shape policies and strategy, they suggested. The report highlighted previous studies that showed that【4】 (busy) family lives, combined with an【5】 (increase) sense of fear in society, children we10．0.68加上32个百分之一是1，比3.3多1.38的数是4.68．