第二节 简答题（共3小题；每小题2分，满分6分）
阅读短文，简要回答第73-75题。
Celebrate Earth Day
April 22 is Earth Day—a time of year when special attention is paid to environmental issues. It is an important day to the people of my home state of Oregon. Oregon is filled with thick green forests, and its residents are often actively involved in preserving its natural beauty.
I recently had the chance to interview Michael Carrier, Oregon's National Resource Policy Director, about the significance of Earth Day in our state. "Salmon(鲈鱼) are very important to Oregon," said Carrier. He explained that Oregon is devoted to maintaining its salmon population, and has issued special license plates with a salmon design. The plates have raised more than $2 million for the Oregon Parks and Recreation Department (OPRD). According to Carrier, the OPRD invests thousands of dollars every year in numerous projects designed to improve salmon life, such as restoring streams to make them fish-friendly.
