Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHTN môn Tiếng Anh - Mã đề KHTN-142

(23) __________ This routine is a testament to his dedication, a silent promise of quality to the community he serves. (24) __________

Your nervous system is like the body's super-fast messaging service. It consists of the brain, spinal cord, and billions of tiny cells called neurons. (25) __________ neuron acts like a wire, sending electrical signals to and from the brain. These signals travel at incredible speeds, sometimes over 400 kilometers per hour.

When your brain decides to move a muscle, it sends a command. Nerves must (26) __________ this command instantly. The brain is responsible (27) __________ sending these orders, and your nerves ensure they reach the right destination. This process is extremely efficient. (28) __________, when you touch something sharp, the message of pain reaches your brain and a command to move your hand is sent back in a fraction of a second. This rapid communication greatly (29) __________ your ability to react to your environment. In fact, if these signals traveled any slower, it (30) __________ much more difficult to avoid danger.

The idea of packing a bag and exploring the world alone is a major trend. From the mountains of Ha Giang to the busy streets of Ho Chi Minh City, more and more young people are inspired by social media to embark on their own adventures. This prospect can be incredibly exciting, offering a taste of true independence. However, for many teenagers, it can also seem like a daunting challenge, raising questions about safety and loneliness.

For many, the idea of a solo trip is incredibly appealing because it offers ultimate freedom. Solo travelers can make their own schedules, change plans whenever they want, and truly get to know themselves. This independence helps build confidence and self-reliance, which are valuable life skills. Discovering new places and overcoming challenges on your own can be a powerful experience, creating memories that last a lifetime and teaching you more than any classroom could.

However, traveling alone isn't without its difficulties. Feelings of loneliness can sometimes appear, especially during evenings or mealtimes. Safety is also a major concern that requires constant awareness. Because of these challenges, thorough planning and research are essential before starting any journey. This includes booking accommodation in advance, understanding local customs, and having a reliable way to communicate with family back home. Preparation is the key to a successful and safe solo adventure.

Ultimately, whether a teenager decides to travel completely alone or not, the process of planning for such a trip is a valuable exercise. Learning how to budget, create an itinerary, and research a destination are all important steps toward adulthood. The dream of a solo journey encourages young people to become more organized and responsible, preparing them for future independence, even if their first big trip is still a few years away.

Have you ever noticed that your smartphone starts to slow down just as a new model is released? This isn't a coincidence; it's a business strategy called 'planned obsolescence'. (37) __________. Companies intentionally make their gadgets less durable (38) __________.

One common method involves using components that are known to fail after a certain period. (39) __________. For example, sealing batteries into phones makes replacement almost impossible for the average user. This strategy not only costs consumers money but also has serious environmental consequences, (40) __________. As consumers, being aware of this practice is the first step toward making more sustainable choices.

A. so that consumers are forced to buy new ones more frequently

B. contributing to a growing mountain of electronic waste, or 'e-waste'

C. Another strategy is making repairs difficult or more expensive than buying a new device

D. This is the practice of designing products with a limited lifespan