1. 根据汉语提示完成句子

1. （1） We all know haze(雾霾) does(伤害) to our health.
   

3. （2） After a long time and much (努力) , the climbers finally reached the top.
   

5. （3） It is necessary for all of us to have some (身体的) exercise.  

7. （4） Good health (需要) enough exercise and a balanced diet.