【正文】 ours, island safaris and reef snorkelling just some of the activities on offer that showcase this spectacular destination. 1. What can we see in the center of Nikoi?s Island? A. Lands of desert. B. Streams and rivers. C. Kinds of animals and plants. D. Tall buildings. 2. What can we learn about the Amanpulo?s villas? A. They are made of bricks. B. We can have a good view of the sea there. C. They are very expensive. D. We can learn much historic stories from them. 3. What activity can you enjoy in Song Saa? A. Diving. B. White rafting. C. Mountainclimbing. D. Rainforest tour. B Natural selection is the process by which one type of animal within a species thrives because of certain characteristics that make it more likely to live than others in its group. The history of the peppered moth（灰蛾） is an example of the natural selection process. In 19th century England, certain types of peppered moths were able to better blend（融合） into their surroundings. During that time period, great changes were happening in Great Britain. The Industrial Revolution was part of this change, and with it came air pollution. Natural selection often takes hundred or even thousands of years to occur. For the peppered moth, this process occurred paratively quickly. At the beginning of the Industrial Age, most peppered moths in England were lightcolored and covered with black markings, although a few moths had darkcolored wings. Because the lightcolored moths blended into the lightcolored bark on the trees, they could not be easily seen by birds that would eat them. As the air grew more polluted, however, tree trunks became covered with soot（煙煤） and became darker. The lightcolored moths became easy for birds to see against the dark tree trunks. Since the darkcolored moths now had the advantage, their numbers grew. Within 50 years, the peppered moth went from being mostly lightcolored to being mostly darkcolored. In the 20th century, the air cleared up, and the peppered moth population changed again. As tree trunks lighted due to less soot in the air, lightcolored moths once again had an advantage. Their numbers increased as soot levels declined. Depending on their environment, the coloration of the moths helped them to be “naturally selected” to survive. 4. Which of the following has the closest meaning to the underlined word “thrives” in the first paragraph? A. Reduces. B. Booms. C. Changes. D. Endangers. 5. What can we infer about the peppered moth?s natural selection process? A. The length of time was unusual. B. The soot levels in England did not affect it. C. This type of color change was typical for moths. D. It was a good example of environmental protection. 6. What?s the difference between lightcolored and darkcolored moths? A. Darkcolored moths were originally easy to see on trees. B. Both kinds of moths preferred the darkcolored trees. C. Birds failed to see lightcolored moths. D. The color of moths was unimportant. 7. Which would most likely happen if soot darkened England?s trees again? A. Birds would eat fewer moths. B. Moths would not be able to stay alive. C. Lightcolored moths would disturb people?s life. D. The population of darkcolored moths would increase. C Having three cancer patients in the same household can turn a whole family upside down. Michelle Bruce, her husband, Jeremy, and their son, Holden, all had cancer. The family moved to Michelle?s hometown of Franklin, Nebraska six years ago, so her parents could help. Doctors found Holden?s brain tumor（腫瘤） , when he was 12 years old. His family was living in a small town at the time, but there were related doctors in the state. Holden had two operations in Omaha clinic, both of which were tough. When Holden?s cancer came back again in 2021, nothing could be done. But the family didn?t give up. They reached out to Boston Children?s Hospital, which