Đề ôn thi Đề thi vào lớp 10 Trường Phổ thông Năng khiếu môn Tiếng Anh - Mã đề PTNK-33

Bluetooth is a wireless technology standard for exchanging data over short distances. It uses short-range radio waves to connect electronic gadgets without the need for cables. From smartphones and laptops to headphones and speakers, Bluetooth allows these items to communicate with each other. For a successful link, two devices must first be 'paired' together, which is a process of mutual recognition and authorization.

Pairing is like a digital handshake. During this initial setup, the two devices agree to communicate. This one-time process creates a secure (21) __________ by exchanging a secret key. Once a pair is established, the devices can automatically reconnect in the future whenever they are close enough and turned on. The security key ensures that other nearby devices cannot listen to or interfere with the communication.

After pairing, the devices form a small, personal network known as a 'piconet'. (22) __________ allows up to eight connected devices to communicate with each other at once, with one acting as the central 'master' device and the others as 'slaves'. Once the piconet is active, the devices can begin to (23) __________ data, such as music files from a phone to a speaker, or keystrokes from a keyboard to a computer.

The technology is extremely useful for a wide range of everyday devices. Think about wireless headphones, car audio systems, or computer mice. Using Bluetooth is often (24) __________ convenient than dealing with tangled wires. Not only does it eliminate the mess of cables, but it also consumes very little battery power, making it ideal for portable electronics that rely on batteries for operation.

Overall, Bluetooth has become an essential part of modern connectivity. Its ability to create simple, low-power, and secure wireless networks between our gadgets has fundamentally changed how we interact with technology, making our digital lives more seamless and organized.

Have you ever considered the story behind your clothes? Beyond the latest trends and cool designs, there’s a growing movement asking whether fashion can do more than just make you look good. This is the world of ethical fashion and social entrepreneurship, where businesses are built not just for profit, but also to create a positive impact on society. It's about recognizing that what we wear can carry a powerful message, turning everyday garments into statements of support for a better world.

Social entrepreneurs are individuals who tackle societal problems with business solutions. [I] In the fashion industry, this means ensuring fair labor practices, sustainable production, or, in some cases, directly supporting vulnerable communities. [II] When you buy from such a brand, you're not just purchasing an item; you’re investing in a cause, becoming part of a larger effort to foster change and create opportunities. [III]

A brilliant example of this movement can be found right here, with the Vietnamese social enterprise Tòhe. Tòhe transforms the vibrant, imaginative artworks created by children with disabilities into stunning designs for clothing, accessories, and lifestyle products. These aren’t just random patterns; they are expressions of creativity and joy from kids who might otherwise have limited avenues for artistic development. A significant portion of the profits from Tòhe’s sales is then channeled directly back into funding art classes and creative workshops for these same talented children, providing them with invaluable learning experiences.

Tòhe truly embodies the concept of "fashion with a heart." Each t-shirt, bag, or notebook tells a story of hope, talent, and empowerment. This unique model resonates with the global shift towards conscious consumerism, where people increasingly seek transparency and purpose from the brands they support. It demonstrates how a simple product, imbued with a powerful social mission, can transcend its functional purpose and become a vehicle for positive transformation, making a tangible difference in the lives of many young artists. [IV]

For someone your age, understanding Tòhe's mission is incredibly relevant. It highlights how your everyday choices, like deciding what clothes to buy, can have a direct and meaningful impact. The t-shirt you wear isn't just fabric; it can be a statement of your values, a way to support children's creativity, or contribute to a more inclusive society. By choosing brands with a social mission, you’re not only getting a cool product but also actively participating in building a better world, proving that yes, a t-shirt truly can change a life.