Situated in the Northeast region of Vietnam, Halong Bay is made up of 1,969 islands of var

Situated in the Northeast region of Vietnam, Halong Bay is made up of 1,969 islands of various sizes, 989 of which have been given names. The concentrated zone of stone islands is famous for its spectacular scenery of caves, and forms the central zone of Halong Bay.
Seen from above, Halong Bay looks like a geographic work of art. While exploring the bay, you feel lost in a wonderful world. There is Man’s Head Island, which resembles a man standing and looking towards the mainland. Dragon Island looks like a dragon winding above the blue water. La Vong Island resembles an old man fishing. There are also the islands of the Sail, the Pair of Roosters, and the Incense Burner, which are all astonishingly like their names.
It has been proven by scientists that Halong Bay was one of the first places of human existence. It is also a region of highly-concentrated biological diversity with many ecosystems of coral reefs, and tropical forests, which are home to thousands of species of animals and rare plants.
The beach located along the coast of Halong Bay has a year-round average temperature of 20℃. Among the palm trees are large hotels. Visitors are seen on white sand and under the green trees are small family-run restaurants. After swimming, tourists can enjoy cold drinks. No wonder the 18h meeting of the Committee of the World Heritages of UNESCO officially recognized Halong Bay as a natural heritage site of worldwide importance.
【小题1】What forms the central zone of Halong Bay?A．1,969 islands of various sizes.B．The concentrated zone of stone islands.C．989 islands that have been given names.D．Man’s Head Island.【小题2】We can infer that the names of most islands     .A．have something to do with theirs shapes.B．were given by the visitors in Halong BayC．were given by the geologists of VietnamD．are related to their history【小题3】 The author writes the passage mainly to    .A．tell some information about the history of VietnamB．introduce the average temperature in VietnamC．introduce the beach of VietnamD．tell readers something about Halong BayB