Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHXH môn Tiếng Anh - Mã đề KHXH-48

Have you ever wondered how your television instantly responds to its remote control? It’s not magic, but a fascinating technological process. The remote control is an (35) __________ tool in many homes, letting us operate our TVs from a distance. This device communicates with your TV using a method that is completely invisible to the human eye.

When you press a button, you begin a chain of events. An integrated circuit inside the remote detects the action. First, the remote (36) __________ generate a unique binary code—a sequence of ones and zeros—that represents the command. Every button has a distinct code, designed to (37) __________ a specific instruction like 'Volume Up'.

Next, the remote sends this code. (38) __________ is done by converting the code into infrared light pulses using a small light-emitting diode (LED) at the front. This light is infrared, which has a wavelength (39) __________ than visible red light. This is why you don't see a flash when you use your remote.

The final stage happens at the television. On the front of the TV, a small infrared sensor detects these light pulses. The sensor converts the light back into an electrical signal for the TV's microprocessor. This processor must then (40) __________ the code to understand the command. (41) __________ the code is identified does the TV perform the action.

(42) __________, what seems like one quick action is actually a rapid, multi-step conversation. From your finger to the TV screen, the remote uses a process of encoding, sending, receiving, and decoding information. It’s a perfect example of complex technology making daily life simpler.

Imagine swapping your school desk for a laptop on a sandy beach, with the sound of waves as your background music. This isn't just a scene from a movie; it's the reality for a growing number of people known as 'digital nomads'. These are individuals who use technology, like laptops and the internet, to work remotely from anywhere in the world. They might be graphic designers, writers, programmers, or online teachers. The key idea is that their office is wherever they can get a good Wi-Fi connection, allowing them to blend work with travel and exploration.

The rise of the digital nomad lifestyle has been driven by two main forces. Firstly, technological advancements have made remote work more accessible than ever. High-speed internet, powerful laptops, and collaborative online tools mean that teams can work together effectively from different continents. Secondly, there has been a cultural shift. Many people, especially younger generations, are seeking more flexible work arrangements that offer a better work-life balance than the traditional nine-to-five office job. They value experiences over possessions and desire the freedom to set their own schedules.

Vietnam has rapidly emerged as a top destination for digital nomads, with cities like Da Nang and Hoi An becoming vibrant hubs. What makes Vietnam so attractive? The low cost of living is a major draw, allowing people's earnings to go much further. The country also boasts stunning natural scenery, from beautiful coastlines to majestic mountains, and a rich culture. Furthermore, the thriving cafe culture provides countless comfortable workspaces with reliable Wi-Fi. This has created a strong sense of community among the nomads who flock here, making it easier for them to connect with like-minded individuals and share experiences.

However, the digital nomad lifestyle is not a permanent vacation. It comes with its own set of challenges that require careful management. One significant issue is dealing with visas and legal requirements to work in a foreign country. Another is the potential for loneliness, as being constantly on the move can make it hard to build deep, lasting relationships. Above all, this lifestyle demands immense self-discipline. Without a boss watching over you, it's easy to get distracted by the temptations of a new place. Balancing work deadlines with the desire to explore is a skill that every successful digital nomad must master.

As the world of work continues to evolve, the line between a career and travel is becoming increasingly blurred. The digital nomad trend shows that it is possible to build a successful professional life without being tied to one location. For your generation, the skills of adaptability, self-management, and digital literacy will be more valuable than ever. The future office might not be a cubicle, but a cafe in Hoi An, a co-working space in Bali, or anywhere else your curiosity takes you.