Đề ôn thi Đề thi vào lớp 10 Trường Phổ thông Năng khiếu môn Tiếng Anh - Mã đề PTNK-52

The Arctic is a land of ice and snow, and the animals that live there need special adaptations to survive. The arctic fox is a master of survival in this harsh environment. Its most amazing feature is its (21) __________, which changes color with the seasons. This transformation is not just beautiful; it is essential for the fox's existence, helping it hunt and hide effectively throughout the year.

During the long, cold winter, the arctic fox grows a very thick, pure white coat. This dense layer of fur acts like a warm blanket, providing excellent insulation against freezing temperatures. More importantly, the white fur provides excellent camouflage; as a result, it is very difficult for predators like polar bears or eagles to spot the fox against the white snow. This allows the fox to hunt its prey, like lemmings, without being easily seen.

When summer arrives and the snow melts, the arctic fox's appearance changes dramatically. The landscape transforms into a mix of brown earth, rocks, and green plants. In response, the fox sheds its thick white fur and grows a thinner, brownish-grey coat. This new color scheme helps the fox to continue its life of stealth, matching the summer tundra perfectly.

This change is not a choice but an automatic biological process triggered by photoperiod, which is the amount of sunlight in a day. If an arctic fox were to keep its summer coat in winter, it would find it much harder to survive. This natural process helps the fox to blend in with its environment throughout the year. A biologist once remarked that if we studied these animals more, we (22) __________ even more about survival. For the arctic fox, changing its coat is not just for looks; it’s a matter of (23) __________.

In conclusion, the arctic fox’s ability to change the color of its coat is one of nature’s most brilliant examples of adaptation. It is a critical survival tool that demonstrates how animals evolve to meet the challenges of their environment. This incredible ability allows the fox to continue (24) __________ in one of the world's most challenging habitats.

Life is full of unexpected twists and turns, often presenting us with challenges that can feel overwhelming. From academic pressures to personal struggles, everyone faces unique adversities. Across the globe, incredible individuals who have navigated extreme personal hardship transform their painful experiences into powerful narratives. These motivational speakers travel the world, sharing their profound stories not just to recount their past, but to ignite a spark of hope and resilience in millions. They inspire people to confront and conquer their own obstacles, no matter how daunting they may seem.

Among these remarkable figures, one man stands out, particularly in Vietnam: Nick Vujicic. Born in Australia with an extremely rare condition, tetra-amelia syndrome, Nick came into the world without arms or legs. Imagine the profound shock and initial despair for both him and his family, facing a life that seemed impossibly limited. Simple daily tasks most people take for granted, like eating or moving, presented colossal barriers. [I]

Yet, it is precisely this extraordinary challenge that forms the bedrock of Nick’s universally acclaimed message. [II] He doesn't just share his story; he embodies the transformative power of attitude. Nick profoundly teaches that true happiness and success are not dictated by the circumstances we are born into, or the difficulties we encounter, but solely by how we choose to respond to them. He demonstrates, through his own vibrant life, that limitations are often self-imposed, and that a determined spirit can overcome virtually any physical barrier, proving a positive mindset is the most powerful tool.

This profound message has resonated deeply with audiences worldwide, but perhaps nowhere as powerfully as in Vietnam. Nick Vujicic has made several highly anticipated visits to the country, each time drawing massive crowds that fill stadiums and auditoriums to capacity. [III] His presence consistently garners extensive media coverage from prominent outlets like VnExpress, highlighting the profound impact his talks have on the Vietnamese public. The heartfelt reception he receives underscores a collective appreciation for resilience and the human spirit's capacity to transcend hardship, offering powerful hope across generations.

For a 14 or 15-year-old, grappling with school demands, social pressures, and future uncertainties, Nick Vujicic's life offers an invaluable lesson. His journey teaches that your circumstances, whether a demanding exam or a personal setback, do not define your potential or your worth. Instead, it is your internal resilience – your choice to approach challenges with optimism, perseverance, and a belief in your own capabilities – that truly shapes your destiny. [IV] By embracing this philosophy, young people can view obstacles not as roadblocks, but as opportunities for growth, discovering inner strength.