【正文】 A. Disappointed. B. Optimistic. C. Concerned. D. Annoyed. 25. What did Suy Senglim do? A. He has taken pictures of about 100 bird species in all. B. He made a careful investigation of the wildlife in Cambodia. C. He is now working in colleges to educate young people. D. He works at the WWF office to help protect wildlife. 26. What is true about Cambodia? A. Local people are good at hunting. B. Forest coverage rate fell by percent from 2022 to 2022. C. Rich people have a special interest in wild meat. D. Many Cambodians have realized the importance of wildlife protection. 27. Where does this text probably e from? A. A news report. B. A science fiction. C. A medical journal. D. An agricultural magazine. C The “swimwithdolphins” tourist industry is being more popular every year. After all, it can cost a large amount of money to have this kind of holiday experience. So tour operators try to place eager swimmers as near as possible to the dolphins. Research has shown that dolphins do not like it at all if the swimmers slip into the water directly on top of them or if humans are in their path of travel. However, if swimmers enter the water to one side of them, the dolphins do not avoid the swimmers to the same extent. In all cases, the dolphins seem to have bee more sensitive to the presence of the swimmers. For dolphins, swimming amongst or with humans is not necessarily a high priority. This study has shown that only 19% of any group of dolphins will participate in interaction. Young dolphins are the most likely to interact. It is believed that they see humans as “entertainment” and that the interaction is a new and unusual experience for them. It is frequently asked whether “swimwithdolphins” tourism should be discontinued. The advice is that dolphins should be given enough periods of time throughout the day when they are not exposed to tourism. Permitted interactions should not be too disturbing to the dolphins since there could be mothers and calves (幼崽 ) present in dolphin groups. There should also be educational campaigns about the creatures and what is likely to cause danger to them. It is not easy to explain to someone that they cannot fulfill their lifelong dreams because the dolphins are resting, or that a mother dolphin and calf are in the area. But if we are to enjoy these remarkable animals and not just use them for our entertainment, then we must carefully monitor the “swimwithdolphins” industry worldwide. 28. What makes “swimwithdolphins” tourism popular? A. The local government’s encouragement. B. The improvement of people’s living standard. C. The increasing number of tourists. D. The high profits of the industry. 29. Why are young dolphins more likely to swim with humans? A. They do this out of curiosity. B. They like humans better. C. They are less sensitive. D. They are fearless. 30. What should the “swimwithdolphins” industry do according to Paragraph 4? A. Avoid interaction with young dolphins. B. Make people know the hidden threat to dolphins. C. Strictly limit the expansion of the industry. D. Expose dolphins to tourists only in the daytime. 31. What can be inferred from the last sentence of the passage? A. The industry has been a hot topic worldwide. B. The industry aims to bring happiness to humans. C. The industry enables humans to swim with dolphins. D. The industry will harm dolphins without proper control. D Scientists have found amounts of water molecules inside rocks and soil samples from Mars before. But an ancient meteorite(隕石 ) found recently contains 10 times more water and much more oxygen than any Martian meteorite ever before discovered. What’s so wild about this wet discovery? It could mean that the Red Pla once had enough water to have liquid flowing on the pla’s surface. It was once believed that if Mars ever had water at all, its water would have been small amounts of ice below the surface or existing in the soil only as hydrogen and oxygenthe elements that make up water. But recent discoveries have shown that Mars probably had a much wetter history than formerly thought. The meteorite, nicknamed Black Beauty, was found in Africa’s Sahara Desert in 2022. Only about 110 meteorites from Mars have ever been found. Scientists believe most Martian meteorites arrived on our pla during one large asteroid crash(小行星碰撞 )that sent rocks falling toward Earth long ago. Black Beauty is about billion years old. Its discovery is the first time scienti