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题型:阅读理解-阅读单选 难度:0.65 引用次数:97 题号:22232608

While we aim to avoid any appearance of baseless theories, it is noteworthy to observe the long-standing practice of putting magnets (磁铁) in cows, a phenomenon that has been carefully unfolding for years. Why are farmers putting magnets in cows?

Known as cow magnets, the devices are placed inside cattle to deal with “hardware disease”. Hardware Disease occurs after an animal eats a metallic object that then makes a hole in the wall of the reticulum, the second stomach room in ruminant animals (反刍动物). This issue arises from the natural eating behaviors of these ruminants, similar to a person at an unlimited food event — quickly and eagerly large bites without sufficient chewing. This fast-paced feeding approach makes them tend to unintentionally consume metal pieces in their food, including broken farm machinery parts, nails and wires used in fencing, for instance.

Metal objects entering the reticulum may result in infections, increased body temperatures, digestive problems, and unease for the animals. To address hardware disease, the main strategy is to prevent metal from entering the cattle’s diet. Farmers have also adopted the method of placing cow magnets into the stomach using either a stomach tube or a balling gun. The cow magnet attracts such objects and prevents them from becoming fixed in the animal’s tissue. These magnets, once positioned, remain within the animals throughout their lifespan, only being removed after death when the cows pass away or are processed for meat.

Moseley, a Veterinary Medicine professor, states in a hardware disease resource, “The magnet gathers foreign metallic objects, reducing the risk of making a hole in the reticulum.” Research shows a mild magnetic field affects a cow’s small blood pathways, improving circulation and aiding recovery without significant impact on the cow or milk quality.

1. Why are magnets fed to cows?
A.To change feeding habits.B.To prevent hardware disease.
C.To improve the milk quality.D.To enhance digestive system.
2. What is the main cause of hardware disease in ruminant animals?
A.Eating without chewing.B.Taking magnets by mistake.
C.Sufficient chewing hard food.D.Swallowing metals accidentally.
3. What is the author’s purpose in writing the passage?
A.To describe the historical practice of putting magnets in cows.
B.To deny the adoption of cow magnets to enhance cattle health.
C.To discuss the influence of a mild magnetic field on milk quality.
D.To explain the reason for using magnets to prevent hardware disease.
4. What might be a logical continuation of the passage?
A.Exploring more potential benefits of cow magnets.
B.Investigating the broader applications of magnets.
C.Discussing the alternative methods of caring for cows.
D.Evaluating the long-term effects of magnets on animals.
【知识点】 科普知识 说明文

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阅读理解-阅读单选 | 适中 (0.65)
文章大意:本文是一篇说明文。文章主要介绍情绪对人类有很大的影响,会影响人们的决策,有助于人们的理性推理。

【推荐1】Besides the theory of evolution, Charles Darwin was also responsible for the theory of emotion, the most important principle of which was that the mind consists of two competing forces, the rational(理性的)and the emotional. He believed emotions played a part in the lives of non-human animals, but in humans emotions were a very small remaining part whose usefulness had been largely replaced by the evolution of reason.

This theory dominated his field for more than a century, but it was dead wrong. We now know that, on the contrary, emotions enhance our process of reasoning and aid our decision-making. In fact, we can’t make decisions, or even think, without being influenced by our emotions.

Consider a pioneering 2020 study in which researchers analyzed the work of 118 professional traders at four investment banks. Some were highly successful, but many were not. The researchers’ goal was to understand what differentiated the two groups. Their conclusion? The traders had different attitudes toward emotions.

The relatively less successful traders for the most part denied that emotions had an effect on their decision-making. The most successful traders, in contrast, had a different attitude. They showed a great willingness to reflect on their emotion-driven behaviour. They recognised that emotion and good decision-making were linked. Accepting that emotions were necessary for high performance, they tended to reflect critically about the role of emotion. Though the successful traders accepted the positive and essential role emotions played, they understood that when emotions become too intense it is useful to know how to tone them down. The issue for them was not how to avoid emotion, but how to harness it.

If emotions aid rational reasoning, how does that work? Perhaps the most important discovery regarding the role of emotion is that even when you believe you are exercising cold, logical reason, you aren’t. People aren’t usually aware of it, but the very framework of their thought process is highly influenced by what they’re feeling at the time. As the Caltech neuroscientist Ralph Adolphs puts it: “Each emotion is a functional state of the mind that puts your brain in a particular mode of operation that adjusts your goals, directs your attention, and modifies(调整) the weights you assign to various factors as you do mental calculations.

The new view of emotion may not correspond to the way Darwin saw it, but it does support one of the basic conclusions of his theory of evolution: humans are not as different from non-human animals as people believed. Want to fare better? Value and regulate your emotion.

1. Based on the study, successful traders would         .
A.reveal their hidden emotions
B.owe their success to emotions
C.review decisions depending on emotions
D.examine their actions influenced by emotions
2. What does the underlined word “harness” in Paragraph 4 most probably mean?
A.Control and use.B.Analyse and release.
C.Face and adapt to.D.Understand and accept.
3. According to Paragraph 5, which of the following is the best example of Ralph Adolphs’ words?
A.Confidence may expose one to more chances.
B.Depression will consume one’s energy.
C.Anger may lead one to risk-seeking.
D.Optimism will affect one’s health.
4. What is mainly discussed in the passage?
A.The contributing factors to emotions.
B.The workable strategies of emotions.
C.The working principle of emotions.
D.The constructive role of emotions.
2023-05-08更新 | 283次组卷
阅读理解-阅读单选 | 适中 (0.65)
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文章大意:这是一篇说明文。文章介绍了《大英百科全书》的编写历史和与《维基百科》之间的对比。

【推荐2】In the first series of the BBC television comedy Flying Circus, broadcast in 1969, a man tells a slightly nervous woman on her doorstep that he would like to come into her house and steal a few things. Suspiciously, she asks him: “Are you an encyclopedia (《百科全书》) salesman?” No, he announces, he is a burglar. Eventually, she lets him in. Once inside, he says: “Mind you, I don’t know whether you’ve really considered owning a really fine set of modern encyclopedias…” The self-proclaimed thief was, after all, a successful encyclopedia salesman.

Author and journalist Simon Garfield quotes this comedy in his book, All the Knowledge in the World, his “history” of the encyclopedia. Garfield’s passion for encyclopedias began as a child in the 1960s and continues to this day. Although now, like everyone else, he searches for information online too, he asks at the end of the book “Is the information we receive today more or less reliable than the information we received in our childhood?” It is a fascinating question, which his book goes at least some of the way toward answering.

Despite a large variety of encyclopedias, Garfield’s account is dominated by Britannica, launched in the United Kingdom in 1768 and Wikipedia, launched in the United States in 2001. Britannica’s contributors have always been selected for their expertise. During the 20th century, named contributors included Cecil B. DeMille on motion pictures, Albert Einstein on space-time, J. B. Priestley on English literature and George Bernard Shaw on socialism. Most were paid a fee, however modest; Einstein, for example, received $86.40 for his entry. The contrast with Wikipedia is sharp: Anyone may contribute to it, contributors are anonymous, and none receives payment.

Authority is therefore the key feature of Britannica, although it certainly contains errors — whereas Wikipedia claims to be full of expertise, leaving itself open to both praise for its unparalleled diversity and criticism for its elementary errors. Even so, “You could still consider,” writes Garfield, “Wikipedia as the most influential and enduring representative of the internet as a force for good.” Yet he also wryly notes that “wiki” is the Hawaiian word for “quick”. Wikipedia tends to be quickly written, quickly consumed, sometimes quickly corrected, and often quickly forgotten.

“I hope this book has encouraged you to think twice about throwing out an old set of encyclopedias,” concludes Garfield. As it controversially suggests, despite — or perhaps because of — the continuing growth of the internet, we are sometimes less reliably informed today than the 1960s. After all, anyone can be a contributor nowadays.

1. The author begins the article with a comedy to         .
A.criticize the quality of information found in encyclopedias
B.highlight the reliability of encyclopedias as a source of information
C.illustrate the declining popularity of encyclopedias in the modern age
D.introduce the topic of encyclopedias in a lighthearted and engaging way
2. Why does the author mention a list of experts’ names in paragraph 3?
A.To explain where the fees of Britannica went to.
B.To illustrate the high level of professional knowledge of Britannica.
C.To highlight the diversity of its contributors’ backgrounds.
D.To give typical examples of its world-famous contributors.
3. What was the main difference between the contributors of Britannica and Wikipedia, according to the article?
A.Britannica contributors were paid more than Wikipedia contributors.
B.Britannica contributors were paid a descent fee, while Wikipedia contributors were not.
C.Britannica contributors were selected for their expertise, while anyone can contribute to Wikipedia.
D.Britannica contributors were nameless while Wikipedia contributors were selected for their expertise.
4. What does the underlined word “wryly” in paragraph 4 mean?
A.ironicallyB.bitterlyC.objectivelyD.seriously
5. Why does Garfield argue that we may be less reliably informed today than in the 1960s?
A.Because we have too much information available to us.
B.Because we are too reliant-on social media for news and information.
C.Because the internet has led to an increase of inaccurate information.
D.Because we have lost the sense of expertise that encyclopedias used to represent.
2024-01-28更新 | 164次组卷
阅读理解-七选五 | 适中 (0.65)
文章大意:这是一篇说明文。文章主要介绍了关于人们幸福的研究和发现。

【推荐3】Good news: your happiest years are still ahead of you. Science says so! Think you have already reached your top in life? We want to share some good news with you:     1    

According to new research, we’re happiest at two points in our lives — not just one. Researchers at the London School of Economics and Political Science asked 23,000 German volunteers aged 17 to 85 to rate their life satisfaction.     2     And then, after five years’ time, they reported back on how they actually felt.

Their results? Anything but bad!     3     One’s satisfaction reaches higher levels during two ends of the study’s age range and moves up and down with middle age. Plus, the researchers noted the two most important years when happiness tops: ages 23 and 69.

    4     In our early 20s, we’re energetic and excited about the changes that come along with young age: new careers, new places to travel, and new people to meet. By the time we reach our 60s and 70s, though, we have likely retired and can now find the time—not to mention the money—to book a flight to Hawaii at a moment’s notice.

Of course, that’s all the more reason to find easy ways to be happier without really trying, regardless of your age!     5     For example, you can take a walk or spend time with family. Just remember, now you have one more reason to look forward to getting older: an increase in happiness!

A.You might want to think again.
B.Your happiest years are still ahead.
C.If you think about it, that makes a lot of sense.
D.Experts recommend choosing small yet rewarding tasks.
E.Volunteers predicted how happy they would feel in five years.
F.The study found that happiness tends to follow a U-shaped line over a person’s lifetime.
G.Take things one step further with the 50 tiny changes that will make you a happier person.
2023-04-17更新 | 34次组卷
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