Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHXH môn Tiếng Anh - Mã đề KHXH-152

A wireless mouse is one of (35) __________ most common peripherals for modern computers, offering freedom from tangled cables. It allows users to control the on-screen cursor without a physical connection. This convenience is made possible by a clever system of components working together to translate physical movement into a digital command.

The process begins with an optical (36) __________ located at the bottom of the mouse. This component shines a light onto the surface, such as a desk or mousepad, and a tiny camera captures thousands of pictures per second. (37) __________, the mouse's internal processor can compare these images to determine the direction and speed of movement across the surface.

This raw movement information needs (38) __________ into a digital format that a computer can understand. The mouse's processor (39) __________ this data, converting the detected motion from the sensor into precise X and Y coordinates. This digital information is now ready to be sent.

An engineer once explained that the signal (40) __________ 'a tiny, invisible message' containing the coordinates. Instead of a cable, the mouse uses a small radio transmitter to send this data wirelessly. This whole process, from movement to transmission, happens (41) __________, ensuring there is no noticeable delay for the user.

Finally, a small USB receiver, plugged into the computer, picks up this radio signal. The receiver decodes the signal and sends the coordinate information to the operating system. If the receiver were not plugged in, the mouse movements (42) __________ any effect on the screen. The computer then updates the cursor's position, completing the seamless journey from your hand to the screen.

Across the world, a significant shift is happening in our homes. The family dog is no longer just a guard for the house, and the cat is more than just a mouse catcher. They are increasingly viewed and treated as integral members of the family. This phenomenon, known as 'pet humanization', describes the trend of attributing human characteristics and needs to pets. It reflects a fundamental change in the human-animal bond, reshaping not only our domestic lives but also creating new economic and social dynamics.

This global trend has clear manifestations in urban Vietnam. In cities like Hanoi and Ho Chi Minh City, the evidence is abundant. A walk through these bustling urban centers reveals a booming pet economy, with specialized services catering to every need of these cherished companions. Pet cafes, where owners can socialize with their animals, have become popular hangouts. High-end pet spas offer grooming services that rival human salons. Furthermore, comprehensive veterinary care, exemplified by chains like Pet Mart, is now considered an essential part of responsible pet ownership, a stark contrast to the basic animal care of the past.

What is driving this profound change? Psychologists and sociologists point to several factors. As modern lifestyles lead to people getting married later or living alone, pets fill a crucial role in providing companionship and combating loneliness. These animals offer unconditional love and a non-judgmental presence, which can significantly reduce stress and improve mental well-being. This emotional support creates a powerful bond, providing them with a sense of purpose and affection. Additionally, the rise of social media has amplified the trend, as proud owners share countless photos and stories of their pets, normalizing and celebrating this deep connection.

However, this evolving relationship comes with new responsibilities and challenges. The financial commitment to a pet is greater than ever. The cost of high-quality food, regular health check-ups, insurance, and grooming can add up, becoming a significant financial burden for some families. Beyond money, the commitment is also emotional and temporal. Owning a pet is a long-term promise to care for a living being, requiring patience, training, and consistent attention. It’s a responsibility that teaches empathy and dedication, but one that should not be taken lightly.

In conclusion, the journey of pets from the backyard to the bedroom marks a major evolution in social attitudes. They have become 'fur babies' for many, occupying a central place in the family structure. This shift towards pet humanization is more than a fleeting trend; it is a reflection of our changing society, our need for connection, and our growing capacity for empathy that extends beyond the human species.