Why we need silence IELTS Reading Answers with Explanation

Luyện tập đề IELTS Reading Practice với passage Why we need silence được lấy từ cuốn sách IELTS CAM IELTS Practice Test 21 - Test 1 - Passage 2 với trải nghiệm thi IELTS trên máy và giải thích đáp án chi tiết bằng Linearthinking, kèm list từ vựng IELTS cần học trong bài đọc.

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Why we need silence IELTS Reading Answers with Explanation

📖 Bài đọc (reading passage)

Why we need silence
A
A. Humans are finely attuned to noise, and for good reason. From an evolutionary perspective, sounds give us vital information, helping us navigate the world and avoid danger. To help ensure loud or unexpected noises get the attention they deserve, our internal chemistry alters in response to them. Our blood pressure goes up, muscles tense and glands release hormones that prepare us for fight or flight. In the short term, this is a good thing. When we are exposed to too much noise over the long term, however, those responses can lead to a multitude of health issues, from sleep disturbance to even cardiovascular disease.
B
B. The World Health Organization has recently designated excessive noise as an 'underestimated threat' to public health, and has said that people living in cities such as Mumbai, Tokyo and Buenos Aires are being exposed to far more than the recommended 40 decibels of noise at night. A report from the European Environment Agency concluded that noise was an ongoing and widespread issue in Europe, with at least 1 in 5 people consistently exposed to levels considered harmful to health. 'There are no "earlids" that can protect your brain from noise,' says Nick Antonio, an acoustic consultant who has contributed to the British and international standards for noise.
C
C. The good news is that several cities have been working to turn the volume down. One of the first to do so was London. 'By providing recommendations for quieter buses, reducing noise from roads and also controlling noise from aircraft, they were able to make the city quieter,' says Antonio. Other cities have introduced noise-reducing road coatings, for instance, alongside greenery that muffles sound. Some solutions are more specific: Washington DC's ban on petrol-powered leaf blowers came into effect recently, while in New York City, legislation has been approved to fine people who modify their vehicles to make them noisier. 'People are seeing the benefits of these more quiet environments in their cities,' Antonio says. 'I expect we will see much more of this in the future.'
D
D. Researchers are also seeking to understand what aspects of silent experiences are most beneficial to our health. One of the best-researched is the flotation tank: a lightproof, soundproof tank of salt water in which a person floats as a form of deep relaxation. While some people experience altered perception in the tanks, involving subtle humming sounds and visual effects, these effects are benign and do not detract from the benefits of the experience, says Justin Feinstein, a clinical neuropsychologist. 'When you don't have external sensory stimuli coming in, the brain tries to fill the void to make sense of this dark and silent world,' he explains. 'In these tanks, some people can even hear the sound of their eyes blinking,' says Feinstein. 'But it is the ability to focus on the breath that helps people reach a relaxed or meditative state.'
E
E. To further explore flotation tanks as a therapeutic tool, Feinstein and his colleagues recruited 50 people with a variety of conditions related to stress and had them answer a questionnaire prior to and following a flotation session. Participants reported decreases in muscle tension, pain and symptoms of their conditions after a single, 1-hour float, alongside an increase in feelings of relaxation and overall wellbeing. 

Less is known about what effects sensory deprivation can have on the brain. To investigate, Feinstein's team had 48 people participate in either three 90-minute float sessions or three 90-minute periods of relaxing on a chair which reclined. Participants had their brains scanned using functional magnetic resonance imaging at the beginning and end of the trial. Float sessions uniquely decreased activity in the default mode network (DMN), a collection of brain regions commonly linked with depression. Feinstein says it is an exciting finding, because flotation tanks seem to offer a way of 'resetting' our nervous system to prevent it from getting out of balance.
F
F. Neurobiologist Tai Dotan Ben-Soussan is also an advocate of silence as a therapy. 'When we find ways to be quiet, we are not only quiet in our environment, but quiet in our inner selves,' she explains. 'This allows us to be more aware of what is happening around us and what the situation may require from us so we can provide [a more] adequate response.'

Not everyone will benefit from silence to the same extent, but Ben-Soussan says one characteristic is key: the person must need to want to engage in the experience. 'We see from animal models and human studies that volition and intentionality is important,' she says. 'When people do not want silence, it can be very distressing.'
G
G. Eric Pfeifer, a psychotherapy researcher, also concedes that some people may not benefit from silence, particularly those who are in a heightened state of stress. 'People in these states may not be able to relax or calm down in a silent condition,' he says. Professional guidance can be useful, he adds, allowing people to approach silence slowly so that they can gradually enjoy the benefits. And Pfeifer is convinced that silence is more attainable in everyday life than people think. First, complete silence isn't necessary. In a recent study, he found that participants reported more relaxation and less boredom when they sat quietly in an outdoor garden compared with a completely silent room. Second, Pfeifer believes we don't need a lot of silence to gain benefits. 'You don't need to spend hours in silence,' he says. 'It is likely better to have more frequency of silence for a few minutes at a time than a longer period of silence only once a week. Just finding those places in your daily life where you can find some silence ... can make a big difference.'

❓ Câu hỏi (questions)

Examples of strategies to decrease the noise that the public are exposed to

Data indicating the extent of the problem of excessive noise

A description of physiological changes in our bodies when we hear sudden noises

Evidence that a relatively quiet environment can be more beneficial than a totally silent one

Flotation Tanks

According to Justin Feinstein, flotation tanks allow people to concentrate on their own ﻿, which helps them relax and enables them to meditate. Feinstein and his colleagues conducted an experiment in which 50 people, who were all suffering from stress and related issues, were given a ﻿ to complete before and after using a flotation tank. Participants reported a reduction in their symptoms after an hour in the tank, together with signs of relaxation and improved general ﻿.
In another experiment, the researchers had 48 people spend periods of 90 minutes either lying back in a chair or floating in a tank. Brain scans then revealed that those people who had been in a tank had decreased activity in parts of the brain associated with ﻿.

List of Findings

Nick Antonio

Justin Feinstein

Tai Dotan Ben-Soussan

Eric pfeifer

It is unpleasant and upsetting for people to be placed in a silent environment against their will.

The trend towards creating quieter urban locations is likely to increase in the coming years.

When our body's senses are completely deprived of input, our minds compensate for this by creating the illusion of images and sounds.

Even a short amount of silent time can have a positive impact.

External and internal quietness makes us more conscious of events occurring in our surroundings and helps us react appropriately to these events.

🔥 Answer key (đáp án và giải thích)

Giải thích chi tiết

✅ Step 1: Phân tích câu hỏi (Matching Information)

Examples of strategies to decrease the noise that the public are exposed to .

Rút ý chính câu hỏi:

Đề đang hỏi những ví dụ cụ thể về biện pháp giảm tiếng ồn
Không chỉ nói chung chung rằng noise is harmful, mà phải có actions / policies / solutions để giảm noise ngoài thực tế

Dự đoán thông tin cần tìm bằng tư duy SPECIFY:

Có thể xuất hiện các từ/cụm như: reduce noise / quieter / control noise / ban / legislation / fine / road coatings / greenery
Nội dung nhiều khả năng sẽ là:
- biện pháp của city/government để người dân nghe ít tiếng ồn hơn
- ví dụ ở các thành phố cụ thể

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✅ Step 2: Locate bằng chứng

Đoạn C là đoạn nổi bật nhất vì ngay đầu đoạn đã nói:

The good news is that several cities have been working to turn the volume down .

Sau đó đoạn này liệt kê hàng loạt biện pháp cụ thể:

London đưa ra khuyến nghị về quieter buses
reducing noise from roads
controlling noise from aircraft
dùng noise-reducing road coatings
trồng greenery that muffles sound
Washington DC ban on petrol-powered leaf blowers
New York City fine people who modify their vehicles to make them noisier

=> Đây chính là đoạn đưa ra examples of strategies để giảm tiếng ồn công chúng phải tiếp xúc.

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✅ Step 3: Đối chiếu paraphrasing

Examples ⇔ đoạn C đưa ra nhiều ví dụ cụ thể ở London, Washington DC, New York City
strategies ⇔ providing recommendations for quieter buses + reducing noise from roads controlling noise from aircraft + noise-reducing road coatings + greenery that muffles sound ban on petrol-powered leaf blowers + fine people who modify their vehicles to make them noisier

decrease the noise ⇔ turn the volume down ⇔ make the city quieter ⇔ noise-reducing ⇔ muffles sound

the public are exposed to ⇔ các biện pháp đều nhắm tới môi trường thành phố, tức tiếng ồn mà người dân sống trong đô thị tiếp xúc hằng ngày

⇒ Đáp án đúng là đoạn C.

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❌ Những đáp án “bẫy” hay dính

Bẫy đoạn B: Nếu skim/scan, học sinh dễ chọn B vì thấy có các từ như: public health / people living in cities /. exposed to / harmful noise. Nhưng B không đúng vì đoạn này chỉ nói: noise là một mối đe doạ sức khoẻ & người dân đang bị phơi nhiễm với mức noise cao. => Đây là đoạn nói về vấn đề/thực trạng, không đưa examples of strategies để giảm noise.

Bẫy đoạn G: Đoạn G cũng có nói đến cách để con người hưởng lợi từ silence, như: không cần complete silence. / chỉ cần vài phút silence thường xuyên -> Nhưng đây là chiến lược để cá nhân tiếp cận silence, không phải biện pháp giảm tiếng ồn công cộng mà people are exposed to ngoài xã hội.

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Kết luận: Đoạn C match chính xác vì đây là đoạn liệt kê các ví dụ cụ thể về giải pháp/chính sách giảm tiếng ồn trong thành phố.

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