Đề ôn thi Đề thi vào lớp 10 Trường Phổ thông Năng khiếu môn Tiếng Anh - Mã đề PTNK-46

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; (22) __________, 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 (23) __________ 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 (24) __________ 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 would learn even more about survival. For the arctic fox, changing its coat is not just for looks; it’s a matter of life and death.

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 thriving in one of the world's most challenging habitats.

In a world valuing strength, admitting struggle can feel counter-intuitive. Yet, a crucial global conversation gains momentum: it's okay to not be okay. Just as we care for our bodies when sick, our minds need attention. For too long, mental health issues were shrouded in silence and stigma, causing many to suffer alone. Now, a growing international movement breaks these barriers, encouraging open dialogue and fostering a culture where seeking mental support is normalized, like seeing a doctor for physical ailments. [I]

Admitting feelings like sadness or anxiety is challenging, especially during turbulent teenage years. Many fear judgment or being seen as weak, often leading them to bottle up emotions. This can create greater struggles. Adolescence brings unique pressures, from academic stress to social dynamics. Recognizing these feelings as valid is the first step. Learning to express them, rather than suppressing them, transforms perceived weakness into a profound act of strength and self-awareness. [II]

In Vietnam, mental health discussions have traditionally been private. [III] Younger generations are increasingly open to emotional well-being, partly fueled by social media's platforms for shared experiences. Organizations like the Research Centre for Gender, Family and Environment in Development (CGFED) are also vital, initiating youth-focused programs that encourage dialogue and provide resources, helping normalize these essential conversations within Vietnamese society.

What does it mean to talk about mental health? It doesn't always mean sharing your deepest fears with everyone. It can start small: confiding in a trusted friend, family member, or school counselor. These individuals can offer a listening ear, advice, or help connect you with professional support. Equally important is being that listening ear for your friends. Creating a network where everyone feels safe to express themselves without judgment strengthens individuals and the entire community. Remember, asking for help is a sign of courage.

Ultimately, mental well-being is a collective journey. By openly acknowledging that it's okay to experience difficult emotions and actively destigmatizing mental health discussions, we empower ourselves and others. [IV] This growing global understanding, coupled with local initiatives and increasing openness among Vietnamese youth, paves the way for a healthier future. Let’s continue fostering environments where emotional honesty is celebrated, and support is readily available, ensuring no one faces struggles alone.