Đề ôn thi Đề thi vào lớp 10 Trường Phổ thông Năng khiếu môn Tiếng Anh - Mã đề PTNK-95

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 essential 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 must generate a unique binary code—a sequence of ones and zeros—that represents the command. Every button has a distinct code, designed to (21) __________ a specific instruction like 'Volume Up'.

Next, the remote sends this code. This 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 longer 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 (22) __________ the code to understand the command. (23) __________ the code is identified does the TV perform the action.

(24) __________, 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.

The excitement of an adventure often comes with the dread of packing, leading to overstuffed suitcases. [I] However, a growing philosophy called minimalist travel champions "less luggage, more freedom." This approach encourages travelers to strip down their essentials, opting for a small backpack or a single carry-on. It's about consciously choosing items that truly add value, rather than accumulating unnecessary weight. Embracing the art of packing light transforms a potentially stressful trip into a truly liberating experience, emphasizing efficiency and ease.

[II] Travelers avoid often exorbitant airline baggage fees, a significant cost saving. Navigating busy airports or train stations becomes effortless without oversized bags. A carry-on means skipping lengthy waits at baggage claim, allowing direct exploration. This agility provides flexibility for spontaneous plan changes and a less constrained travel style. Ultimately, it fosters carefree exploration, making the journey smoother and more enjoyable from start to finish.

For many Vietnamese travelers, packing light is more than just a preference; it’s a crucial, money-saving skill. Popular domestic budget airlines like Bamboo Airways and Vietjet Air are known for strict, often costly baggage allowances. Exceeding these limits can lead to unexpected charges, turning an affordable flight into an expensive ordeal. Mastering efficient packing allows travelers to bypass these fees, making local adventures more accessible and enjoyable. It empowers them to travel smart and avoid hidden financial burdens.

This practical approach holds significant relevance for teenagers. Whether for a weekend visit to grandparents, an exciting school trip, or an overnight stay, how you pack directly impacts your experience. Imagine effortlessly moving through a bus station or hotel without struggling with a heavy backpack. Packing efficiently means less worry about belongings and more time enjoying the moment, feeling independent and mobile. It frees you to fully immerse yourself in trip activities, rather than being weighed down by extra stuff.

How can you master this skill? [III] Choose versatile clothing that mixes and matches. Roll clothes tightly to save space, and opt for travel-sized toiletries. Wear bulkiest items like jackets instead of packing them. The key is to critically evaluate each item: do you truly need it, or can you do without? By adopting these habits, packing light transforms from a daunting task into an empowering part of travel. It allows you to focus on the joy of discovery and the boundless freedom that comes with carrying less. [IV]