Đề ôn thi Đề thi vào lớp 10 Hà Nội môn Tiếng Anh - Mã đề HN-148

The 'pack it in, pack it out' principle is a fundamental rule for responsible hiking. It means that everything you bring into a natural area, you must also carry out with you. (23) __________. (24) __________

Our blood is a fascinating fluid that (25) __________ a vital role in keeping us healthy. It is composed of different elements, but two of the most important are red and white blood cells.

Red blood cells, (26) __________ are also known as erythrocytes, are the most common type of blood cell. Their main job is to transport oxygen from our lungs to all other parts of the body. They contain a special protein called hemoglobin, which binds to oxygen. This process is essential for providing energy to our muscles and organs, allowing them to function (27) __________.

(28) __________, white blood cells, or leukocytes, are the soldiers of our immune system. When harmful bacteria or viruses enter the body, a signal (29) __________ and more white blood cells are produced to fight the invaders. For example, if you cut your finger yesterday, white blood cells immediately (30) __________ to the area to prevent infection.

Living in a hot, humid climate like Vietnam's often means a daily battle to stay comfortable. Traditional fabrics like cotton absorb sweat but dry slowly, leaving you feeling sticky. Polyester, on the other hand, doesn't breathe well. For years, these were the main choices for everyday clothing. However, material science is now offering a high-tech solution to this common problem, moving beyond the limits of conventional textiles.

The secret lies in 'smart textiles' designed specifically for cooling. These innovative fabrics work in two main ways. First, they have excellent moisture-wicking properties, meaning they pull sweat away from the skin to the fabric's surface where it can evaporate quickly. This process mimics the body's natural cooling system but enhances it. Second, some advanced materials can manage thermal radiation, allowing the heat our bodies produce to escape more efficiently into the environment.

The benefits of these cooling fabrics are clear. They provide superior comfort during hot weather, making daily activities more pleasant. Furthermore, by helping people stay cool, these textiles could potentially reduce the reliance on air conditioning, leading to energy savings. While these high-tech materials are often more expensive than cotton or polyester, their popularity is growing as more people recognize their advantages. Local brands in Vietnam are also starting to incorporate these fabrics into their collections.

The future of clothing in warm climates looks promising. As technology improves and becomes more affordable, we can expect to see more of these smart textiles in our wardrobes. From school uniforms to office wear, science is paving the way for a future where our clothes actively help us beat the heat, making everyday life in places like Vietnam significantly more comfortable.

The idea behind school uniforms is to create a level playing field, where students are judged on their character, not their clothes. This policy aims to reduce peer pressure and bullying related to fashion choices, (37) __________. By dressing everyone the same, schools hope to minimize the visible signs of wealth or poverty among students.

However, human nature often finds a way to re-establish social hierarchies. (38) __________. Instead, they reappear in more subtle forms. (39) __________, which are not covered by the uniform policy. Ultimately, while uniforms can reduce overt clothing-based competition, (40) __________.

A. Even with uniforms, status symbols don't disappear entirely

B. they do not completely solve the issue of social status displays in schools

C. making school a more focused learning environment

D. Students might compete over branded backpacks, expensive sneakers, or the latest smartphones