단원 2 레슨 D

A tennis player is someone who competes in the sport of tennis, which involves hitting a ball back and forth over a net using a racket. Tennis can be played individually or with a partner. The objective is to score points by hitting the ball in such a way that the opponent cannot return it within the boundaries of the court. Tennis players need good hand-eye coordination, agility, and stamina, as the game often involves quick movements and long rallies. They can compete in various levels, from casual matches to professional tournaments.

The Internet is a global network that connects millions of computers and devices, allowing them to communicate with each other and share information. It enables users to access websites, send emails, watch videos, play games, and use various online services. The Internet relies on a system of servers, routers, and protocols to ensure that data travels efficiently between devices across the world. It has become an essential tool for communication, education, business, and entertainment, shaping modern life in countless ways.

A teacher is someone who works primarily in a classroom setting to help students learn and develop their knowledge in specific subjects. They create lesson plans, explain concepts, and assess students' understanding through tests, assignments, and activities. Teachers are typically responsible for guiding students through a curriculum and ensuring they meet educational standards. Their role focuses on fostering academic growth and providing support to students as they learn.