第 3 单元 - 第 2 课

A taxi is a vehicle that carries passengers to different locations for a set price. It can be stopped on the street or reserved in advance. Taxis are driven by professional drivers and are often used for short trips when other forms of transportation are not available or convenient. The vehicle is usually marked with a sign to show it is ready for passengers. Taxis provide a quick and convenient way for people to get from one place to another.

A train is a type of vehicle that runs on tracks, used for transporting people or goods over long distances. It consists of a series of connected carriages or wagons, which are pulled or pushed by a locomotive, a powerful engine designed to move the train. Trains are powered by various energy sources, including electricity or diesel engines. They are an efficient way to travel, especially for long distances, and are commonly used in many countries for both local and international travel. Trains offer a smooth ride, and their fixed tracks help avoid traffic, making them a reliable form of transportation.

A bus is a large vehicle designed to carry many passengers at once, usually following a fixed route. It is commonly used for public transportation in cities and towns, helping people travel to different locations efficiently. Buses have multiple rows of seats and space for standing passengers in some cases. They can be powered by gasoline, diesel, electricity, or other energy sources. Some buses operate on schedules, stopping at designated locations, while others are used for long-distance travel or private purposes, such as school or tour buses.