Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHXH môn Tiếng Anh - Mã đề KHXH-124

Have you ever wondered how you can smell a delicious pizza from another room? The answer lies in tiny, invisible particles called molecules. Every object with a smell, from flowers to food, releases these scent molecules into the air. The process of (35) __________ begins when these molecules start their journey towards your nose.

These molecules travel through the air, carried by currents, until they enter your nostrils. They then move up into a special area high inside your nose. (36) __________ is the first crucial step in the smelling process, as the molecules have to reach the right place to be recognized. Some animals, like dogs, have a much (37) __________ sense of smell than humans because their noses are designed to capture more molecules more efficiently.

Inside the nose, there is a small patch of tissue containing millions of specialized cells called olfactory receptors. Each receptor is like a lock, and each scent molecule is like a key. When the correct molecule 'key' fits into a receptor 'lock,' the receptor is activated. It will then (38) __________ a signal to the brain. Without this complex system, we (39) __________ not be able to enjoy the pleasant scent of a rose or be warned of a dangerous gas.

The signals from the receptors travel along the olfactory nerve directly to the brain. The brain receives these electrical messages and begins to analyze them. It compares the pattern of the signal to a huge library of smells it has learned throughout your life. The brain then identifies this specific (40) __________, distinguishing it from thousands of others.

(41) __________ does the brain simply identify the smell, but it also links it to our memories and emotions. This is why the smell of baking bread might make you feel happy and nostalgic. (42) __________, the journey of a scent is a remarkable collaboration between our nose and our brain, allowing us to experience the world in a rich and detailed way.

For many teenagers in Vietnam, life often revolves around a demanding academic schedule. With extra classes, homework, and exam preparation, the idea of 'play' can seem like a luxury, or even a waste of precious study time. This pressure can lead to the belief that hobbies are for young children or for adults with more free time. However, a growing body of research and a shift in social trends suggest the opposite: making time for a hobby is not just enjoyable, it's a crucial component of mental well-being and personal development for everyone, especially students.

From a scientific perspective, the benefits of engaging in a hobby are clear and significant. When you are absorbed in an activity you love, your brain gets a much-needed break from academic stress. Psychologists have found that hobbies can lower levels of cortisol, the body's primary stress hormone. This leads to reduced anxiety and an improved mood. Furthermore, dedicating time to a non-academic interest can boost creativity and improve concentration when you return to your studies. This break is not a distraction; it is a vital part of an effective learning cycle, allowing the mind to rest, recharge, and return stronger.

Hobbies can be broadly grouped into different categories, each offering unique benefits. Creative hobbies, like painting, playing the guitar, or writing stories, are excellent outlets for self-expression and can enhance problem-solving skills. They encourage you to think differently and create something entirely new. Physical hobbies, such as playing badminton, dancing, or hiking, are fantastic for releasing pent-up energy and improving physical health. Finally, social hobbies, like joining a club or playing board games with friends, build essential communication and teamwork skills, helping you connect with others who share your interests.

This global understanding of the importance of hobbies is beginning to resonate strongly in Vietnam's urban centers. In cities like Ho Chi Minh City and Hanoi, there has been a noticeable rise in spaces dedicated to leisure and skill-building. Board game cafes, where groups of friends can gather for hours of strategic fun, have become incredibly popular. Likewise, workshops offering classes in pottery, leather-making, or even digital art are attracting many young people who are eager to learn a new skill and de-stress in a creative environment.

Ultimately, the key is to find an activity that you genuinely enjoy and that feels like play, not another chore. Whether it’s coding a simple video game, tending to a small garden, or perfecting a new recipe, a hobby is your personal time to explore, create, and recharge. It is a powerful investment in your own happiness and mental resilience, proving that sometimes, the most productive thing you can do is to take a break and simply play.