Kiểm Tra Khảo Sát Tiếng Anh 12 Sở GD&ĐT Hà Nội Cụm THPT Số 8

The pursuit of relief during scorching heatwaves frequently causes a series of physiological missteps. [I] A primary spark for such events is thermal shock, often provoked by the abrupt transition between climate-controlled environments and harsh outdoor temperatures. These rapid transitions compel blood vessels to oscillate violently between constraint and expansion, a phenomenon exacerbated by the perilous habit of cold immersion immediately following heat exposure. Without a needed adjustment period, the body's inability to regulate its internal balance can trigger acute vasoconstriction, dizziness, or even fatal strokes. Similarly, hot showers in inadequately ventilated spaces can induce rapid vasodilation, causing blood pressure to plummet and leading to faint.

Physical exertion represents another critical vulnerability. [II] Undertaking high-intensity exercise, particularly on thermally saturated pavements during peak hours, subjects the respiratory and cardiovascular systems to intolerable strain. In these conditions, the body becomes a dual heater—absorbing ambient heat while simultaneously generating metabolic warmth—frequently resulting in arrhythmia or exertional heatstroke. Furthermore, the common desire for cooling down with alcoholic or carbonated beverages is a profound misconception. Alcohol acts as a potent vasodilator and diuretic, accelerating fluid loss while simultaneously dulling the perception of early warning signs like fatigue. [III] Excessive caffeine and sugar intake similarly exacerbate dehydration, undermining the body's cooling mechanisms.

Dietary choices further complicate these risks. High sodium intake promotes fluid retention and hypertension, placing immense stress on analytical and cardiac vasculature. [IV] Long-term adherence to diets rich in saturated fats and processed sugars accelerates atherosclerosis, progressively narrowing the arterial pathways. Crucially, when symptoms of heat distress manifest, the reliance on archaic folk remedies—such as "gua sha" or bloodletting—is dangerously misguided. These interventions fail to address the underlying physiological crisis and, more importantly, waste the "golden hour" essential for professional medical intervention. True mitigation requires a disciplined approach to gradual temperature transitions, thorough hydration, and a recognition that rhetoric regarding quick "cool-down" fixes must yield to evidence-based caution.

(Adapted from https://e.vnexpress.net)

The ongoing conflict involving Israel, the US, and Iran is now recognized as more than a political crisis; it is a significant driver of climate change. Recent reports show that in only the first two weeks, the war produced about five million tonnes of greenhouse gas emissions. __This amount__ exceeds the total yearly output of many smaller countries. This __spike__ in pollution stems from infrastructure destruction, heavy military fuel use, and fires ignited by attacks on energy supplies. Notably, the ruin of 20,000 buildings released vast amounts of embodied carbon from destroyed construction materials.

Beyond structural damage, military logistics are a massive source of pollution. Long-distance missions by planes and ships consume huge quantities of fuel, increasing the environmental cost of the war. At the same time, strikes on fuel storage sites have caused major fires, releasing millions of barrels of oil into the air as carbon. The use of explosives and the destruction of equipment add even more to the problem. Because military operations prioritize speed over efficiency, their carbon footprint is often overlooked.

The path to recovery is equally carbon-intensive. The future reconstruction of these urban areas will require massive amounts of concrete and steel, leading to even more emissions in the coming years. __Because the manufacturing of these materials is energy-heavy, the process will lock in a high-emission trajectory long after the fighting stops__. This ensures that the ecological damage continues even when the conflict ends.

On a larger scale, this conflict shows how dependence on fossil fuels leads to global instability. Interruptions in energy supplies often lead to more extraction, keeping carbon levels high just when the world needs to reduce them. As the planet nears dangerous climate limits, these developments prove that war and environmental protection are fundamentally incompatible.

(Adapted from https://www.theguardian.com)

65-Year-Old Vietnamese Farmer Earns University Degree After Decades of Perseverance

A 65-year-old farmer, Duong Van Bay, has inspired many after earning a university degree decades after leaving school due to financial hardship. Born in An Giang Province, Bay dropped out of school at an early age, a decision (19) ___________ by economic difficulties which affected his family. For years, he worked (20) ___________ jobs while raising his children. However, feeling left behind in conversations with friends, many of (21) ___________ were well-educated, he decided to return to education.

After failing his high school exams twice, he temporarily gave up. Nevertheless, in 2020, at the age of 59, he passed the exam, achieving a goal long considered (22) ___________. He later enrolled in a distance-learning program at University of Social Sciences and Humanities.

Despite challenges, including (23) ___________ and demanding travel for exams, Bay remained committed. In 2026, he graduated with a degree (24) ___________ Vietnamese Studies. His story highlights the power of determination, showing that education is a lifelong journey for those willing to keep trying.
(Adapted from https://e.vnexpress.net)

△ DEEPFAKES: TRUST OR TRICKERY?
Deepfakes, which are AI-generated images and videos that imitate real people, are spreading quickly across social media. This technology is (25) __________ serious concerns about misinformation and the loss of public trust.
Recently, several political (26) __________ have been targeted by these fake recordings, and many viewers cannot easily tell whether they are real or not. Some leaders see opportunities in deepfakes, while (27) __________ warn against their dangerous effects.
In one case, a city leader used AI-generated voice messages in different languages to promote local places. (28) __________ this was done with good intentions, a civil rights activist spoke out against this action, pointing out that such technology could be misused in the future.
Around the world, the growing use of deepfakes in communication is making it harder for people to (29) __________ the information they receive. (30) __________ individuals now struggle to tell the difference between truth and manipulation.
Stay alert. Think carefully about what you see.
(Adapted from https://newsinlevels.com)

Hanoi authorities are starting a new pilot program on July 1, 2026. The main goal is to create a low-emission zone across eleven streets in Hoan Kiem district. This initiative represents a strategic method to combat rising pollution by restricting vehicles (31) __________. Reports of a total prohibition on gasoline motorbikes during weekend nights along with a six-month ban on ride-hailing services (32) __________ rather than prioritizing the immediate convenience of commuters.
The updated regulations establish a mandatory compliance framework, in which access for larger vehicles is strictly contingent upon Euro 4 standards. Additionally, other heavy vehicles are required to follow temporal limitations during peak hours. (33) __________. These measures are intended to enhance the urban environment, making the city center significantly quieter and more accessible for pedestrians.
This policy represents a key element of a broader environmental strategy for the metropolitan area. By 2027, the clean zone is expected to expand to include fourteen additional streets. (34) __________. Driven by the urgent need to address escalating traffic and environmental concerns, (35) __________ in a city where seven million motorbikes are currently in use.
Despite the potential for initial disruptions to daily commuting, authorities maintain that this is a vital step toward protecting public health and ensuring a sustainable urban space for future generations.
(Adapted from https://e.vnexpress.net)