Q20:

Sulfur dioxide, a major contributor to acid rain, is an especially serious pollutant because it diminishes the respiratory system’s ability to deal with all other pollutants.

1. an especially serious pollutant because it diminishes the respiratory system’s ability to deal
2. an especially serious pollutant because of diminishing the respiratory system’s capability of dealing
3. an especially serious pollutant because it diminishes the capability of the respiratory system in dealing
4. a specially serious pollutant because it diminishes the capability of the respiratory system to deal
5. a specially serious pollutant because of diminishing the respiratory system’s ability to deal

Answer: A

我想问especially和specially是怎么区别什么时候用的，还有ability是不是指于生俱来的，而capability是指能力？

especially means "other than usual", while specially means "for one particular purpose", although in spoken language, both can be used as "more than usual".

especially是表示程度

specially表示特殊

而且ability to do>capability of doing

所以选a