Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHTN môn Tiếng Anh - Mã đề KHTN-83

(23) __________ . These experiences are not just pleasant distractions; they are fundamental building blocks for psychological well-being. Therefore, dedicating time to a personal interest is a powerful strategy for maintaining mental health. (24) __________

In movies, quicksand is often shown as a deadly trap that swallows people whole. However, the reality is much less dramatic. Quicksand is just ordinary sand that has become saturated with water, which greatly reduces the (25) __________ between the sand grains. This makes it unable to support weight. When you step on it, you start sinking. The (26) __________ misconception is that you will sink completely, but humans are actually less dense than quicksand. (27) __________ means you will only sink to about your waist.

If you ever find yourself in this situation, the most important thing is to (28) __________. Panicking and moving frantically will only make you sink faster. Instead, you should try (29) __________ lean back and spread your arms and legs out. This distributes your weight more evenly. Then, you can make slow, careful movements to float on your back and gently paddle your way to solid ground. It’s a strange situation, but escaping is not as (30) __________ as films suggest.

Have you ever looked at the leftover food on your plate at school or after a family dinner and wondered where it goes? While it may seem like a small amount, it is part of a much larger global issue. Worldwide, about one-third of all food produced is never eaten. This is not a minor problem; it has serious consequences for our planet, contributing to the waste of resources like water and energy used to grow and transport that food.

When food ends up in a landfill, it decomposes without oxygen and produces methane, a powerful greenhouse gas. It is over 25 times more potent at trapping heat in the atmosphere than carbon dioxide, making food waste a significant driver of climate change. The journey from our plates to the landfill, therefore, has a surprisingly large and harmful environmental footprint that many people are not aware of.

In Vietnam, this issue is especially visible during large celebrations like Tết, where preparing abundant food is a tradition. However, this often leads to a large amount of waste. Fortunately, awareness is growing, and organizations are taking action. For example, Food Bank Vietnam works to rescue surplus food from supermarkets, farms, and restaurants. Their mission is to redistribute this edible food to orphanages, elderly homes, and people in need, turning potential waste into valuable meals.

The good news is that we can all be part of the solution. As young people, you can make a difference starting today. Simple actions include being more mindful of what you buy, taking smaller portions of food to avoid leftovers, and creatively using uneaten food for other meals. By making small changes in our daily habits, we can collectively reduce the amount of food that ends up in the landfill and help protect our environment.

The rise of e-books has transformed our reading habits and our concept of a personal library. In the past, owning a book meant having a physical object on your shelf, something you could touch, lend, or resell. (37) __________. However, the digital revolution introduced a new kind of 'shelf.' (38) __________. When you buy an e-book, you are essentially purchasing a license to access the content, not the book itself. This distinction is crucial. (39) __________. For instance, you often cannot lend an e-book to a friend in the same way you would a paperback. (40) __________.

A. As a result, your rights as a digital book owner are more limited

B. It's a trade-off between the convenience of digital access and the permanence of physical possession

C. This physical presence created a strong sense of ownership

D. This virtual library exists only on a screen but can hold thousands of titles