Americans like travelling around during their holidays. They can use trains, buses, or cars. In the United States, it is expensive to travel by train; and although bus travel is very convenient and inexpensive, it is a little uncomfortable. So most Americans prefer to drive their own cars. People sometimes travel by hitch-hiking. The travellers stand at the roadside and make a sign with their thumbs (拇指). Most car or truck drivers would be glad to stop and give them a free lift（搭便车）. During travel, Americans can stay in a Holiday Inn. Holiday Inn is a very popular hotel because it is usually inexpensive and is open day and night. They can also stay in motels. Motels not only offer rooms for travellers, but also provide ( 提供) parking places for their cars. For students and other young people, they can choose youth hostels（青年旅社）. Youth hostels offer them even more inexpensive places than Holiday Inns. They can also give young people an opportunity to make new friends. 1. Travelling by car is expensive and uncomfortable.