题目内容：

Mona Island is an amazing place to take a vacation. Some of the animals living there can’t be found anywhere else in the world. There are beautiful beaches and caves to explore. The sea around the island has colorful fishes. Why is Mona Island unusual? Mona Island is very small. The government of Puerto Rico takes care of the island and has made it a natural reserve. That means the island’s animals and plants are protected from being harmed by people. Mona Island is different from most places because people are not allowed to live there. Only a few park rangers（公园管理员）are able to stay. The park rangers’ job is to keep Mona Island safe and beautiful. They insist that rules are followed. One rule is that only 100 people at a time can visit the island. That way, the park rangers can make sure the land and animals remain safe. What is there to See on Mona Island? One thing that most people enjoy is getting to see the Mona Island iguana(美洲热带大蜥蜴). This type of reptile(爬行动物) lives only on Mona Island. Almost 2,000 of these iguanas live on Mona Island. People also come to the island to get a close-up view of many kinds of fish and other sea life. They can swim far below the surface. They use special equipment to be able to breathe underwater. The water is almost transparent. Through the clear water, divers can see the bright colors of the fish. Visitors can also explore caves. Some of the caves even have paintings and drawings on the walls. This artwork was made by the Arawak and Taíno Indians who lived on the island hundreds of years ago. After a full day of fun activities, visitors can settle in, listen to the night sounds, and view the stars in the huge sky. Because the island is far away from other places, it is surrounded by darkness, and the stars are easier to see. Visitors say that watching the stars is amazing. It’s the perfect end to a perfect day.

1.What do park rangers on Mona Island do?

A. Protect the land and animals.

B. Offer some help to visitors.

C. Feed animals on Mona Island.

D. Drive a boat between Puerto Rico and Mona Island.

2.Which of the following best explains the word “transparent”?

A. so difficult that you can’t finish

B. so clear that you can see through

C. too deep to be reached

D. too bright to be seen

3.Where can artwork be seen on Mona Island?

A. On the beaches.    B. In a museum.

C. In the caves.    D. On the wall of the hotel.

4.Which sentence can be filled in the first blank?

A. Mona Island is very small.

B. Watching the stars on Mona Island is amazing.

C. Visitors can settle in after a full day on Mona Island.

D. Mona Island is far from other places and darkness is all around it.

5.What is the most possible reason the author wrote this article?

A. To explain why animals live on the island.

B. To show readers where the island is located.

C. To tell about a place that some people might enjoy.

D. To give facts about people who work on the island.