第三单元

Social media refers to online platforms and websites that allow users to create, share, and interact with content, as well as connect with others. These platforms enable people to post messages, photos, videos, and other types of content, and engage with others through comments, likes, shares, or follows. Social media has become a key tool for communication, entertainment, news, and marketing. Social media has transformed how people connect, share information, and participate in online communities.

A choir is a group of singers who perform together, usually led by a conductor. Choirs can vary in size, from small ensembles to large groups, and they often sing in harmony, with different voice parts such as soprano, alto, tenor, and bass. They perform a wide range of music, including classical, gospel, and contemporary songs, and can be found in places like churches, schools, and community organizations. Choirs practice regularly to prepare their performances and aim to produce a unified and harmonious sound.

A gymnasium is a large indoor facility used for physical activities and sports, such as basketball, volleyball, and gymnastics. It typically features a hard floor or specialized surface, and may include equipment like basketball hoops, volleyball nets, and gymnastic apparatus. Gymnasiums are commonly found in schools, universities, and fitness centers, serving as a space for physical education classes, sports practices, and recreational activities. Some gymnasiums also host events, such as competitions, performances, and community gatherings.

Squash is a fast-paced indoor sport played by two players or two teams of two players each on a four-walled court. Players take turns hitting a small rubber ball against the front wall using rackets. The goal is to make the ball bounce in the opponent’s side of the court in such a way that they cannot return it before it bounces twice. Points are scored when the opponent fails to return the ball correctly. The game is played in a fast rhythm, requiring agility, quick reflexes, and strategic shot placement.

A water sport is a type of sport played in or on water, involving activities such as swimming, diving, or using equipment like boats or surfboards. These sports can take place in oceans, lakes, rivers, or swimming pools and often require skills such as balance, coordination, and strength. Water sports can be done individually or in teams and include activities like surfing, kayaking, water polo, and sailing. Many of these sports are featured in major competitions, such as the Summer Olympic Games, where athletes showcase their abilities in various water-based events.

A computer game is a video game that is played on a computer or similar device, using software to create the game environment and interactive elements. Players use input devices such as a keyboard, mouse, or controller to interact with the game. Computer games can be single-player or multiplayer, and they come in a variety of genres, such as action, adventure, strategy, and simulation. These games often involve completing tasks, solving puzzles, or competing against other players or the game itself. Computer games are popular for entertainment, education, and online socializing.

A helmet is a protective headgear designed to protect the wearer's head from injuries caused by impacts, collisions, or falling debris. It is typically made from hard, durable materials such as metal, plastic, or Kevlar, and features a cushioned lining that provides shock absorption and comfort. Helmets are widely used by military personnel, law enforcement officers, construction workers, athletes, and individuals engaging in extreme sports such as cycling, skiing, and rock climbing. Some helmets also come equipped with additional features such as ventilation, visors, and communication systems. Properly fitting and correctly worn helmets can significantly reduce the risk of head injuries in accidents.

Meditation is a practice where individuals focus their mind and reduce distractions to reach a state of deep relaxation or increased awareness. It typically involves techniques like being aware of oneself and one's surroundings, concentration on a specific object or thought, or controlled breathing. Meditation aims to calm the mind, decrease stress, and improve overall well-being. It has been used for centuries in various cultures and traditions to enhance clear thinking, emotional balance, and inner peace. Regular meditation is associated with numerous health benefits, including reduced anxiety, improved focus, and enhanced emotional strength.

A trainer, used primarily in British English, is a type of athletic shoe designed for sports and physical activities, similar to what is known as a "sneaker" or "athletic shoe" in American English. Trainers are typically made from lightweight and breathable materials, such as mesh and synthetic leather, and may feature additional design elements such as rubber soles, shock-absorbing cushioning, and extra support in high-impact areas. They are designed to provide comfort, stability, and traction for various sports and physical activities, such as running, jogging, or training at the gym. Trainers come in a range of styles and colors and can be worn not only for sports but also for everyday casual wear. Choosing the right pair of trainers that fit well and suit the intended activity is important for both comfort and injury prevention.

A saddle is a seat designed to fit on the back of a horse or other animal to support the rider. It is typically made from durable materials like leather or synthetic fabrics and is shaped to fit the animal's back comfortably. The saddle provides support and stability for the rider, helping them stay balanced and secure while riding. It often includes features like stirrups, where the rider places their feet, and a pommel at the front to assist with balance. Saddles are used in various types of riding, from casual riding to more specialized activities like racing or working with livestock.

A needle is a thin and pointed medical tool used to pierce the skin for various purposes, such as injecting medications, drawing blood for tests, or delivering fluids directly into veins or tissues. Needles are typically made of stainless steel and come in different sizes depending on their use. They are essential in medical procedures for giving treatments and getting samples for diagnosing patients, while causing minimal discomfort.

A screwdriver is a tool used to turn screws, either to tighten or loosen them. It typically has a handle and a shaft with a tip designed to fit into the head of a screw. The tip comes in various shapes, such as flat, cross, or star, to match different types of screws. Screwdrivers are commonly used in construction, repairs, and assembly work. They allow for precise control when driving screws into materials like wood, metal, or plastic, making them an essential tool for many tasks.

A surfboard is a long, flat board used in surfing to ride waves in the ocean. It is usually made of lightweight materials, such as fiberglass, and comes in different shapes and sizes depending on the style of surfing. Surfboards are designed to float on water and provide stability while allowing the surfer to balance and maneuver over waves. The rider stands on the board, using their body movements to control direction and speed as they ride the waves. Surfboards are essential for surfers and are used in both recreational and competitive surfing.

A tracksuit is a two-piece athletic outfit consisting of a jacket or sweatshirt and matching pants that are typically made of a comfortable and stretchy material, such as cotton or polyester. Originally designed for use during sports activities, tracksuits have become a popular fashion choice for casual wear, particularly in hip-hop and streetwear scenes. They offer a relaxed fit and often feature elastic waistbands and cuffs for a comfortable and secure fit during physical activities. Tracksuits can also come in a variety of colors and designs, making them a versatile choice for both fashion and function.

Shorts are a type of clothing worn on the lower part of the body, covering the legs from the waist to the thighs or knees. They are typically made from lightweight, breathable fabrics such as cotton, polyester, or nylon, and come in a variety of styles and designs to suit different preferences and occasions. Shorts may be fitted or loose and may feature details such as pockets, zippers, or drawstrings. They are worn by people of all genders and ages and are popular for their comfort and practicality in warm weather or for activities such as sports or outdoor activities. Shorts can be dressed up or down depending on the occasion and may be worn with a variety of footwear including sandals, sneakers, or boots.

A racket is a sports equipment used to hit a ball or shuttlecock in games like tennis, badminton, and squash. It consists of a handle and a round or oval-shaped frame with strings stretched across it, forming a hitting surface. Rackets come in various sizes and designs, depending on the sport and the player's needs. The frame is usually made from lightweight materials like graphite, carbon fiber, or aluminum, while the strings are typically made from nylon or synthetic materials. A racket allows players to control and strike the ball or shuttlecock with precision during the game.

A wetsuit is a type of protective clothing typically worn by swimmers, surfers, and divers to keep warm in cold water. The suit is made of a special type of synthetic rubber called neoprene, which is designed to insulate the wearer's body and keep it warm. The neoprene material traps a thin layer of water between the skin and the suit, which is then warmed by the body's natural heat. This layer of water acts as a barrier, preventing heat loss and keeping the wearer comfortable in cold water. Wetsuits come in various thicknesses and styles, depending on the water temperature and the activity being performed. They are essential for water sports enthusiasts who want to stay warm and safe in cold water conditions.

A television (TV) is a device used to receive and display broadcasted or streamed video and audio content. It allows viewers to watch shows, movies, news, and other programming on a screen. Televisions come in various sizes and types, including traditional cathode ray tube (CRT) models, flat-panel LCD and LED screens, and advanced 4K and OLED displays. Modern televisions often include features such as internet connectivity for streaming services, smart TV capabilities for accessing apps, and high-definition resolution for clearer, more detailed images.