题目内容：

Welcome to Olympic National Park!

The park is located in the western state of Washington and it covers more than 400,000 hectares. Each area of the park offers visitors something special. Here are some places to go.

Elwha Valley

The Elwha Valley is in the central part of the park. It is the Olympic Peninsula’s largest watershed (分水岭). Long ago, the rivers in this area held the most salmon (鲑鱼) outside of Alaska. In the 1920s, a growing community of settlers built two hydroelectric (水力发电) dams to provide energy for the local economy. The dams created many problems for the river. They decreased the water in the rivers, which caused the fish population in the area to decrease. This affected the other animals that depended on fish for food.

The community later decided to take some measures to solve these problems. Today, the Elwha River is the site of one of the largest ecosystem restoration projects in National Park Service history.

Hurricane Ridge

Hurricane Ridge is a mountain area in the northern part of the park. It is easy to enter, and provides incredible views of the Olympic Mountains.

The ridge has many hiking paths. In winter, people come here to ski. They also come here to take part in other fun winter activities, like sledding and snowboarding.

Hurricane Ridge usually has snow from December through the end of March. Visitors must be prepared for icy roads and severe weather.

The Coast

The westernmost part of the park is Pacific coastline. Olympic National Park has many breathtaking beaches.

Rialto Beach is known for its tall seastacks (海蚀柱). These formations are tall towers of rock standing in the sea. Kalaloch Beach is known for its white sand. It also has three national wildlife refuges, which protect the area’s bird and fish species.

The coastline areas offer hiking and camping. They are some of the most popular places in the park.

1.What happened to the Elwha River after the two dams were built?

A. Local settlers had enough energy.

B. Local settlers made more money.

C. The Elwha Valley was formed.

D. The ecosystem was greatly affected.

2.Which place is most suitable for winter activities?

A. Elwha Valley    B. Hurricane Ridge

C. Rialto Beach    D. Kalaloch Beach

3.What’s the purpose of the passage?

A. To attract visitors to the park,

B. To introduce the parkas history.

C. To show the variety of the park.

D. To stress the importance of ecosystem.