The island of Cuba is no bigger than Pennsylvania. Yet when it comes to nature, the island is one of the most important places on the planet. That is the message of ¡Cuba!, an exhibit that opened in November at the American Museum of Natural History (AMNH), in New York City.
       “The biodiversity (生物多样性) of Cuba is part of Cuban identity,” Ana Luz Porzecanski says. She is the director of the Center for Biodiversity and Conservation at AMNH and one of the two curators (a person in charge of a museum exhibit) of the exhibit.
Detailed recreations of four habitats transport typical parts of Cuba’s landscapes (风景) and seascapes to New York. They include ancient caves and a network of reefs. One area features live anole lizards, a Cuban tree frog, and a Cuban boa.
       Cuba boasts more than 6,500 species of plants, 161 kinds of reptiles, 65 types of amphibians, 42 species of mammals (哺乳动物), and 367 bird species. One of those is the bee hummingbird. Weighing far less than an ounce (about 28 grams), it is the smallest bird on Earth.
       Much of the wildlife found in Cuba exists only there. That gives scientists a unique opportunity to study how plants and animals develop and survive.
       “Cuba is a very exciting place for us to look at all these different processes,” says Christopher Raxworthy. He is in charge of one department of the museum and a cocurator of the exhibit. “But that also creates great challenges for conservation.”
       Climate change is threatening Cuba’s wildlife. Some species may even disappear. The country is taking steps to protect its plants and animals. But AMNH hopes ¡Cuba! will show how important the country’s natural world is to everyone.
28. What can be known about ¡Cuba!?
A. It shows Cuba’s rich biodiversity.
B. It compares the islands on the planet.
C. It features Cuba’s social development.
D. It opens in a museum in Pennsylvania.
29. What does the underlined word “boasts” in Paragraph 4 probably mean?
A. Increases.  
B. Needs.
C. Has.   
D. Expects.
30. What does Christopher find challenging?
A. To organize the exhibition.
B. To observe plants and animals.
C. To study the unique species of Cuba.
D. To protect the native wildlife of Cuba.
31. What is the best title for the text?
A. Cuba fights climate change
B. Travel from Cuba to America
C. Wildlife conservation faces threat
D. AMNH’s Cuba exhibit explores biodiversity 本文是说明文。美国自然历史博物馆举办的展览¡Cuba!展示了古巴丰富的生物多样性。
28. A。细节理解题。由第一段中的when it comes to nature, the island is one of the most important places on the planet. That is the message of ¡Cuba!以及第二段中的The biodiversity of Cuba is part of Cuban identity可知，¡Cuba!是在纽约的美国自然历史博物馆举办的一次展览，主要展示了古巴丰富的生物多样性。
29. C。词义猜测题。由划线词后的6,500 species of plants, 161 kinds of reptiles, 65 types of amphibians, 42 species of mammals, and 367 bird species可知，古巴拥有6500种植物、161种爬行动物、65种两栖动物、42种哺乳动物和367种鸟类，这也照应了上文中提到的古巴丰富的生物多样性。
30. D。细节理解题。由倒数第二段中的But that also creates great challenges for conservation可知，保护古巴的野生动植物是一大挑战。
31. D。标题归纳题。通读全文可知，本文主要讲述了在纽约的美国自然历史博物馆举办的展览¡Cuba!展示了古巴丰富的生物多样性。D项作标题符合文章主旨。