－Why are there a lot of dead fish in the river?

－Because they were ______ by the polluted water.

A．caught

B．poisoned

C．burned

D．protected

欣赏（）是一种审美活动，它是以音响的听觉感知、情感体验、想象联想、理解认识相结合的一种特殊的认识过程。欣赏音乐一般可分为知觉的欣赏、情感的欣赏和理智的欣赏三个层次。