Đề ôn thi Đề thi vào lớp 10 Trường Phổ thông Năng khiếu môn Tiếng Anh - Mã đề PTNK-170

Have you ever seen water (21) __________ down a drain? A whirlpool is a much larger and more powerful version of this. These fascinating natural events occur in oceans and rivers, where powerful bodies of water are in motion. They are essentially rotating masses of water, formed by the meeting of hydrological forces beneath the surface.

A whirlpool is most commonly created by the interaction of opposing currents. When one current flows in a certain direction and meets another flowing in the opposite way, (22) __________ energy of this collision needs to go somewhere. As a result, the water begins to rotate. This process is similar to how a storm is formed in the atmosphere, but it happens underwater.

This initial rotation creates a vortex, which is a spiraling movement of water around a central point. The water starts spinning faster and faster, pulling everything on the surface towards its center. The depth and power of the vortex depend on the strength of the original currents. Some whirlpools are small and temporary, while others can be incredibly large and persistent.

The force of a large whirlpool is immense. It creates a strong suction effect that (23) __________ anything floating nearby, from small debris to large boats. If a small boat were to get too close, (24) __________ almost impossible to escape the pull. This is why sailors have always been cautious in areas known for strong currents.

In conclusion, a whirlpool is a force to be reckoned with. It is a powerful demonstration of nature's forces at work. A famous oceanographer once reported that ancient sailors had warned other mariners for centuries about the dangers lurking in certain waters. These natural wonders are beautiful to observe from a distance but must be respected for their potential danger.

We often think of healthy habits as eating well, exercising, or getting enough sleep. But what if one of the most powerful tools for our well-being isn't found in a gym or a kitchen, but in our interactions with others? Could kindness itself be a health habit? Emerging research suggests that performing acts of kindness offers significant benefits not just to the recipient, but profoundly to the giver as well. Embracing kindness might be a surprisingly effective way to boost our mental health and overall happiness.

[I] Studies consistently show that engaging in altruistic behaviors can noticeably reduce stress levels. [II] When we help others, our brains release feel-good chemicals like oxytocin and dopamine, leading to increased feelings of contentment and even a sense of purpose. This ripple effect of positive emotions contributes significantly to our mental well-being, proving that helping others genuinely helps ourselves.

[III] This concept resonates deeply within Vietnamese culture, where the principle of "tương thân tương ái" — meaning mutual love and affection or reciprocal care — is a cherished value. It's a foundational belief that emphasizes community solidarity and looking out for one another. We see this vividly in times of need, such as when communities swiftly organize fundraising or aid efforts for those affected by natural disasters like floods, embodying a collective spirit of compassion and support that enriches everyone involved.

[IV] For teenagers, navigating the pressures of school life, academic competition, and social dynamics can often feel overwhelming and stressful. However, incorporating small, intentional acts of kindness into daily routines can make a significant difference. Simple gestures, like offering a genuine compliment to a classmate, helping someone understand a difficult lesson, or even just listening actively to a friend, can elevate your own mood instantly. These actions not only foster a more positive and supportive school environment but also build stronger relationships.

Ultimately, the evidence is clear: kindness is far more than just a polite gesture; it's a powerful practice for personal health and collective well-being. By choosing to be kind, we actively participate in a positive feedback loop that benefits our own mental state, strengthens community bonds, and creates a more compassionate world. So, the next time you consider ways to boost your health, remember that a simple act of kindness might be one of the most effective and rewarding habits you can cultivate.