用所给的提示词将下列各句译成英语。
1. 丹顶鹤的数量正变得越来越少。
The number of the red-crowned cranes _____ _____ _____ and _____.
2. 埃菲尔铁塔模型是由金属制成的。
The _____ Eiffel Tower is _____ _____ _____.
3. 当玻璃和砖块砸下来时，人们在疯狂地奔跑。
People were _____ _____ while pieces of glass and bricks were _____ _____.
4. 如果农民继续攫取土地的话，大熊猫就会没有地方居住了。
If farmers _____ _____ the land, giant pandas will have _____ to _____.
5. 该地区为野生生物提供了食物和栖息地。
This _____ _____ food and _____ for _____.
6. 我的脑中掠过一阵恐惧。但我很快冷静下来。
A _____ of _____ went through my mind. But I _____ _____ soon.
