2021-2022年高一英语下学期周练试题(I)一、阅读理解What happens inside the head of a soccer player who repeatedly heads a soccer ball? That question motivated a study of the brains of experienced players. Researchers at the Albert Einstein College of Medicine in New York selected 34 adults, men and women. All of the volunteers had played soccer since childhood and now peted year-round in adult soccer leagues. Each filled out a detailed questionnaire developed especially for this study to determine how many times they had headed a soccer ball in the previous year, as well as whether they had experienced any known concussions (脑震荡) in the past.Then the players pleted puterized tests of their memory and other learning skills and had their brains scanned, using a plex new M.R.I. technique which can find structural changes in the brain that can’t be seen during most scans. According to the data they presented, the researchers found that the players who had headed the ball more than about 1,100 times in the previous 12months showed significant loss of white matter in parts of their brains involved with memory, attention and the processing of visual information, pared with players who had headed the ball less.This pattern of white matter loss is “similar to those seen in traumatic (外伤的) brain injury”, like that after a serious concussion, the researchers reported, even though only one of these players was reported to have ever experienced a concussion.The players who had headed the ball about 1,100 times or more in the past year were also generally worse at recalling lists of words read to them, forgetting or fumbling the words far more often than players who had headed the ball less. 1． Where do you think the text es from?A. Medicine instructions.B. A text for doctors.C. A research report.D. A sports advertisement.2．What do we know about the volunteers?A. They had serious injury on the head.B. They were adults who still played soccer.C. They were all researchers about soccer.D. They all had children who played soccer.3． What was used to find the structural changes in the brains?A. Advanced puters.B. A new technique M. R. I.C. Special questionnaires.D. Learning skills.4． We can conclude that frequent heading may have .A. a significant effect on on e’s brainB. little effect on one’s brainC. nothing to do with the brainD. improvement in one’s brainHave you ever wondered when dogs first became “man’s best friend” and the world’s favourite pet? If you have then you’re not alone. When and where dog s first began living side-side with humans are questions that have stirred hot debate among scientists. There are a few hard facts that all agree on. These include that dogs were once wolves and they were the first animal to be domesticated(驯养) by humans. They came into lives some 15000 years ago, before the dawn of agriculture.Beyond that, there is little agreement. The earliest bones found that are unquestionable dogs and not wolves date from 14,000 years ago. However, 30,000-year-old skulls have been discovered in France and Belgium that are not pure wolf and some scientists think could be dogs.With such puzzling evidence, many scientists are now turning to DNA to find outwhen and where dogs were first domesticated. In one research project, tens of thousands of blood samples have been taken from street dogs around the world. The plan is to pare them with those of wolves. It’s even possible to analyse DNA from ancient bones. Tiny pieces of the 30,000-year-old skulls mentioned earlier are currently being studied, and another DNA study has already shown that ancient dogs preserved in the Alaskan ice-fields evolved from Asian wolves, not American ones.Indeed, the ancient DNA may turn out to be more informative than the DNA of living dogs. Because dogs have acpanied humans around the world for thousands of years, their current distribution may tell us very little of their origins. This is why different groups of scientists believe that dogs variously originated in eastern Asia, Mongolia, Siberia, Europe or Africa.But why were the animals domesticated in the first place? The most recent theory is that dogs domesticated themselves, initially living in and around our ancient villages to eat any food thrown out. Today, this is a way of life still shared by three -quarters of a billion unowned dogs worldwide.5． Which is the only statement generally agreed on by scientists studying dogs?A. They originally were used as farm animalB. They evolved from wolves found in EuropeC. They helped the development of agricultureD. They were the first animal to be kept as pets6． Why does the writer first mention the 30,000-year-old animals skulls?A. To show that dogs were much larger in the pastB. To prove that dogs developed from Asian wolvesC. To suggest that dogs may have evolved much earlierD. To argue that dogs were first kept in France and Belgium7． How did scientists determine the origins of the ancient dogs found in Alaska?A. By examine the animals’ DNAB. By analyzing the age of their bonesC. By studying the shape of their skullsD. By paring them with modern dogs8． Why did dogs start living with humans?A. Because they were attracted by foodB. Because they were trapped by humansC. Because they couldn’t survive in the wildD. Because they were trained to protect villages二、完形填空阅读下面短文，从短文后所给各题四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项。