1.阅读理解

People don't usually become homeless suddenly. It's a chutes-and-ladders(阶梯状) process. A large new statewide study takes a closer look at the period just before homelessness, by asking a representative sample of almost 3,200 homeless people from all over the state about the dilemma they fell into, and what would have helped.

Some of the findings were unsurprising: in the state with the nation's largest homeless population, people are unhoused because they don't have enough money, or have experienced trauma (创伤). A quarter of all survey participants had experienced family violence, and their lives and health get much worse once homelessness strikes. But some of the report's data run counter to popular perception: for example, most homeless people are not from out of state, contrary to the commom belief that homeless people move to California for the weather and policies.

The study's lead author, Dr. Margot Kushel, says there's a "doom loop" of homelessness, where people have jobs that don't cover living expenses, so they lose their homes, and the resulting instability makes it harder to keep their jobs.

Kushel points to really exciting models of homelessness prevention, where in low-income communities, they'll have subway and bus posters saying, "Are you at risk of becoming homeless? Call us." These programs might offer anything from cash to finding landlords or roommates. "What was really striking to us was how little money people thought it would have taken," says Kushel. Most participants suggested that less than $500 a month, or a onetime payment of $ 10,000, would have kept them housed. Kushel cautions that the vast majority of mental health issues among the study participants are anxiety and depression. It's likely that the lack of resources results in those conditions, rather than the illness causing the homelessness. "The driving issue is clearly the deep poverty," Kushel says.

(1)  What does the study focus on? A. The homeless' nationalities. B. The current situation of the homeless. C. Homeless people's previous experiences. D. The solution to wiping out homelessness.
(2)  Which of the followings surprised the researchers? A. Deep poverty gives rise to homelessness. B. Most participants have experienced domestic violence. C. The majority of homeless people are native Californian. D. Homeless people move to California for the weather and policies.
(3) What does the underlined phrase "doom loop" probably mean in paragraph 3? A. A terrible circle. B. A different situation. C. An improved condition. D. An unpredictable future.
(4) What can be inferred from the last paragraph? A. Anxiety and depression caused homelessness. B. People expected a very low charge of housing. C. Homeless prevention exists in all communities. D. The program offers accommodation free of charge.
【考点】
推理判断题; 词义猜测题; 细节理解题; 说明文; 科普类;
【答案】

您现在未登录,无法查看试题答案与解析。 登录
阅读理解 未知 普通
能力提升
真题演练
换一批
1.阅读理解

In November 2019, a scientist was sitting in the jungle of Gabon, watching a chimpanzee inspect her son's wounded foot. Suddenly, she quickly caught an insect out of the air, squeezed it in her mouth, and then put it carefully in the cut. In the months that followed, the scientists followed chimpanzees with a wound. Repeatedly, they saw them put insects into it-- applying, removing and reapplying them to the injury as If squeezing out the goodness.

They were, the scientists guessed, using the insects to medicate. "What we think Is that maybe they're mixing it with their saliva (唾液) and pressing something out of the insect", said Simone Pika, from the University of Osnabruck, in Germany. There are some substances that might have anti-inflammatory (消炎的)or pan-killing functions. "

The findings have been published in the journal Current Biology. It is the first time that such behavior has been documented in chimpanzees, although other apes have been known-to "self-medicate" using plants.

So far the researchers haven't found out how chimpanzees formed such behavior. Pika thinks it is possible that the behavior developed by chance, perhaps because a chimpanzee rubbed an insect into a wound for fun but accidentally found T helped relieve the pain, or seemed to make it heal faster. Afterwards, others may have copied it.

Now Pika and her colleagues want to try to identify the insect and work out what it does. Another option, she admits, is that the insect makes no difference at all, and it is simply a cultural practice that has become fashionable. While it might seem odd that chimpanzees would rub insects into their wounds, we fail to judge whether it is helpful in healing the injuries.

(1) Why did chimpanzees apply insects to wounds according to the scientists? A. For experiment. B. For amusement. C. For physical growth. D. For medical treatment.
(2) What does paragraph four mainly talk about? A. The effective cures for chimpanzees' injuries. B. The possible explanation for chimpanzees' behavior. C. The solutions for chimpanzees to prevent insect bites. D. The function of the insects to treat chimpanzees' wounds.
(3) What is the author's attitude to the chimpanzees' behavior? A. Uncertain. B. Convinced. C. Negative. D. Critical.
(4) Which is the author's purpose in writing the text? A. To persuade readers to care more about chimpanzees. B. To inform readers of chimpanzees' strange behavior. C. To tell readers insects can relieve pain and treat injuries. D. To encourage readers to observe chimpanzees in the wild.
阅读理解 模拟题 普通
2.阅读理解

On March 7, 1907, the English statistician Francis Galton published a paper which illustrated what has come to be known as the "wisdom of crowds" effect. The experiment of estimation he conducted showed that in some cases, the average of a large number of independent estimates could be quite accurate.

This effect capitalizes on the fact that when people make errors, those errors aren't always the same. Some people will tend to overestimate, and some to underestimate. When enough of these errors are averaged together, they cancel each other out, resulting in a more accurate estimate. If people are similar and tend to make the same errors, then their errors won't cancel each other out. In more technical terms, the wisdom of crowds requires that people's estimates be independent. If for whatever reasons, people's errors become correlated or dependent, the accuracy of the estimate will go down.

But a new study led by Joaquin Navajas offered an interesting twist (转折) on this classic phenomenon. The key finding of the study was that when crowds were further divided into smaller groups that were allowed to have a discussion, the averages from these groups were more accurate than those from an equal number of independent individuals. For instance, the average obtained from the estimates of four discussion groups of five was significantly more accurate than the average obtained from 20 independent individuals.

In a follow-up study with 100 university students, the researchers tried to get a better sense of what the group members actually did in their discussion. Did they tend to go with those most confident about their estimates? Did they follow those least willing to change their minds? This happened some of the time, but it wasn't the dominant response. Most frequently, the groups reported that they "shared arguments and reasoned together." Somehow, these arguments and reasoning resulted in a global reduction in error. Although the studies led by Navajas have limitations and many questions remain, the potential implications for group discussion and decision-making are enormous.

(1) What is paragraph 2 of the text mainly about? A. The methods of estimation. B. The underlying logic of the effect. C. The causes of people's errors. D. The design of Galton's experiment.
(2) Navajas' study found that the average accuracy could increase even if

________.

A. the crowds were relatively small      B. there were occasional underestimates C. individuals did not communicate       D. estimates were not fully independent
(3) What did the follow-up study focus on? A. The size of the groups.                           B. The dominant members. C. The discussion process.                          D. The individual estimates.
(4) What is the author's attitude toward Navajas' studies? A. Unclear.                   B. Dismissive.              C. Doubtful.                 D. Approving.
阅读理解 未知 困难
3.阅读理解

21-year-old Jasmine Harrison completed the 2020 Talisker Whisky Atlantic Challenge in 70 days, 3 hours and 48 minutes — a new world record for the youngest female to row alone across the Atlantic.

Harrison, who's from North Yorkshire, England, didn't have loads of experience in rowing long distance. In her childhood, she could not even dream of such an ambition. She'd only gotten the idea three years earlier when she happened to be in Antigua, teaching swimming, and saw the end of the 2017 Talisker Whiskey Atlantic Challenge. "Talking to a family member of a young man that had just completed it, I got to know just how amazing a thing it was. I didn't say ‘not a chance I would do that', but it was more a fact of why not do it?" she said.

Every day, Harrison would row for about 12 hours, pushing her 550-pound boat she bought with some money across the ocean, covering roughly 90 kilometers. The journey left her with much time all by herself, which she said she enjoyed. But things got a little harder after her speaker fell in the water and she could no longer listen to her music.

She had other company along the way. She saw lots of sea life, including several whales. One even rose out of the ocean right next to her boat. "I'm in their environment," she said. "It's just amazing."

Twice, her boat was turned over in the night by large waves. The second time, she hurt her arm quite badly. Another time, she nearly ran into a ship. When her food ran out, she lived on cookies and chocolate. In the face of great hardship and loneliness, she kept going.

On February 20, 2021, she reached the island of Antigua—the end of the journey. She celebrated her arrival with a burger and fries.

(1) What made Harrison participate in the 2020 Talisker Whiskey Atlantic Challenge? A. Her swimming teaching experience. B. Her experience of watching a race. C. Her childhood hobby and dream. D. Her family members' encouragement.
(2) Which of the following best describes Harrison's ocean trip? A. Adventurous. B. Pleasant. C. Expensive. D. Boring.
(3) When did Harrison begin rowing across the Atlantic Ocean alone? A. In November. B. In January. C. In December. D. In February.
(4) What can we learn from Harrison's story? A. Difficulties strengthen the mind. B. The early bird catches the worm. C. Behind bad luck comes good luck. D. No way is impossible to courage.
阅读理解 常考题 普通