D
We are the products of evolution, and not just evolution that occurred billions of years ago. As scientists look deeper into our genes (基因), they are finding examples of human evolution in just the past few thousand years. People in Ethiopian highlands have adapted to living at high altitudes. Cattle -raising people in East Africa and northern Europe have gained a mutation (突变) that helps them digest milk as adults.
On Thursday in an article published in Cell, a team of researchers reported a new kind of adaptation - not to air or to food, but to the ocean. A group of sea-dwelling people in Southeast Asia have evolved into better divers. The Bajau, as these people are known, number in the hundreds of thousands in Indonesia, Malaysia and the Philippines. They have traditionally lived on houseboats; in recent times, they’ve also built houses on stilts (支柱) in coastal waters. “They are simply a stranger to the land,” said Redney C. Jubilado, a University of Hawaii researcher who studies the Bajau.
Dr. Jubilado first met the Bajau while growing up on Samal Island in the Philippines. They made a living as divers, spearfishing or harvesting shellfish. “We were so amazed that they could stay underwater much longer than us local islanders,” Dr. Jubilado said. “I could see them actually walking under the sea.”
In201, Melissa Ilardo, then a graduate student in genetics at the University of Copenhagen, heard about the Bajau. She wondered if centuries of diving could have led to the evolution of physical characteristics that made the task easier for them. “it seemed like the perfect chance for natural selection to act on a population,” said Dr. Ilardo. She also said there were likely a number of other genes that help the Bajau dive.
32. What does the author want to tell us by the examples in paragraph 1?
A. Environmental adaptation of cattle raisers. B. New knowledge of human evolution.
C. Recent findings of human origin. D. Significance of food selection.
33. Where do the Bajau build their houses?
A. In valleys. B. Near rivers. C. On the beach. D. Off the coast.
34. Why was the young Jubilado astonished at the Bajau?
A. They could walk on stilts all day. B. They had a superb way of fishing.
C. They could stay long underwater
D. They lived on both land and water.
35. What can be a suitable title for the text?
A. Bodies Remodeled for a Life at Sea B. Highlanders’ Survival Skills
C. Basic Methods of Genetic Research D. The World’s Best Divers
第二节（共5小题;每小题1.5分，满分7.5分）
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Having a healthy family life can lower risk of heart attack and boost your chance of living longer. 36 ．
Care for elders in a loving way
Caring for an elderly loved one is a wonderful way to show compassion and service, and it doesn't mean you have to sacrifice everything. 37 . Kids and marriages can be powerfully impacted by how these decisions are handled，both negatively and positively. They thoroughly think through the potential impact of moving an aging parent into the home or providing extended care. A good boundary with an aging parent is to do occasional outgoings.
Cultivate an attitude of gratitude
Healthy families set a culture of being grateful for the things you appreciate in life, big and small. Set up a respectful space where at the end of each day, each family member share what they are grateful for. 38 ．
Keep treats out of sight(and out of mind)
What you see is what you want to eat. 39 . Put the sugary treats out of sight and leave colorful fruits and vegetables out on the counter or on the most visible shelves in the fridge so that you're more likely to reach for a nutritious snack.
40 .
Healthy families will create a safe environment for healthy communication, where each individual feels like their feelings are acknowledged. When conflict arises, they don't have to agree with each other but they still need to acknowledge each other's feelings. They still feel their opinions are valued. They also learn tools for how conflicts can be resolved. No one shuts down, or runs away when there is disagreement. They work it out.
A．Fight fair
B．Live healthily
C．Keep healthy snacks highly visible in your kitchen
D．If you keep fighting，you will hurt your family
E. Here’s how to maximize this amazing health asset(资产)
F. This sets up an atmosphere of appreciation that all can benefit from
G. Healthy families have boundaries with aging parents and grandparents
