Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHTN môn Tiếng Anh - Mã đề KHTN-12

(23) __________ . These examples show that the effects of noise are widespread. Therefore, rules limiting noise after 10 PM are not just about punishing a few loud individuals; they are a tool for public health and well-being. (24) __________

When we think of renewable energy, we often think of the sun or wind. However, the ocean's tides offer another powerful source. We have learned how to (25) __________ this energy using special underwater turbines. Because tides are caused by the moon's gravity, they are incredibly predictable. This makes tidal power one of the (26) __________ forms of renewable energy available to us.

The process works in a simple way. As the tide comes in and out, the moving water spins the blades of large turbines placed on the ocean floor. These turbines are connected to generators, which allow us (27) __________ the water's movement into electricity. The entire process is clean and does not release harmful greenhouse gases into the atmosphere. (28) __________ makes tidal energy a very attractive option for countries with long coastlines.

However, there are challenges. The initial (29) __________ of tidal power plants is very expensive, and they can only be built in specific locations with strong tidal flows. While it's not a (30) __________, tidal energy is a promising and important part of our future clean energy strategy.

Have you ever looked up at the night sky from a city and wondered where the stars went? The answer is a modern problem: light pollution. This phenomenon, visible as a bright "sky glow" above urban areas, is caused by excessive artificial light. It obscures our view of the cosmos and has significant environmental impacts that we are only now beginning to fully understand.

Major cities worldwide, including developing ones like Ho Chi Minh City, are hotspots. The constant illumination from skyscrapers, streetlights, and giant digital billboards all contribute to the brightness. While intended for safety and commerce, this nonstop lighting creates a luminous blanket over the city, effectively erasing the natural darkness of night and changing the urban environment after sunset.

The consequences extend far beyond a starless sky. Nocturnal animals, from migratory birds to sea turtles, are severely affected. Their life cycles, which depend on natural patterns of light and dark, are disrupted. This artificial light can confuse their navigation, alter their hunting habits, and interfere with reproduction. It is a serious threat to urban ecosystems, showing that our light has a dark side.

Beyond ecological damage, light pollution is also a significant waste of energy and money. The problem, however, is not without solutions. Implementing smarter lighting designs, such as shielded fixtures that direct light downwards and using motion-sensor lights, can make a huge difference. By being more mindful, we can help reclaim the stars and protect the delicate balance of the nighttime world.

In our busy lives, it's easy to feel overwhelmed by the constant demands of school, friends, and family. Many people think that always saying 'yes' is the key to being helpful and liked, but this can quickly drain our mental energy. (37) __________.

Setting boundaries isn't about being selfish; it's about recognizing your limits and protecting your well-being. When you say 'no' to a new commitment, you are essentially saying 'yes' to your existing priorities. (38) __________. As a result, you have more mental space to focus on what truly matters to you, whether it's studying for an important exam or simply relaxing. (39) __________.

Ultimately, mastering the art of saying 'no' is an essential skill for managing stress. (40) __________.

A. It also reduces feelings of resentment that can build up when you feel forced to do things

B. This is where learning to say 'no' becomes a powerful tool for self-care

C. By doing so, you can replenish your energy and maintain a healthier mental state

D. This act protects your valuable time and energy from being overspent