Americans with small families own a small car or a large one. If both parents are working, they usually have two cars. When the family is large, one of the cars is sold and they will buy a van (住房汽车).
A small car can hold(容纳) four persons and a large car can hold six persons but it is very crowded(拥挤的). A van hold seven persons easily, so a family with three children could ask their grandparents to go on a holiday travel. They could all travel together.
Mr. Hagen and his wife had a third child last year. This made them sell a second car and buy a van.
Americans call vans motor homes. A motor home is always used for holidays. When a family is traveling to the mountains or to the seaside, they can live in their motor home for a few days or weeks. All the members of a big family can enjoy a happier life when they are traveling together. That is why motor homes have become very popular. In America there are many parks for motor homes.
单选题 From the passage, a van is also called _______.
【正确答案】 B
【答案解析】最后一段提到美国人把房车也叫做移动之家。因此B为正确答案。
单选题 Before Mr. Hagen and his wife bought a van, they _______.
【正确答案】 C
【答案解析】“This made them sell a second car and buy a van."由此句可知，C为正确答案。
单选题 A motor home is usually owned by a family with _______.
【正确答案】 C
【答案解析】由文中提到有三个小孩儿的家庭可以叫上祖父母去度假，还有海根先生家有了第三个孩子后就买了房车可以推断出一般三个以上孩子的家庭是大家庭，才会买房车。因此C为正确答案。
单选题 Americans usually use motor homes _______.
【正确答案】 A
【答案解析】细节题。文中提到美国人用房车和全家人去度假。因此A为正确答案。
单选题 Motor homes have become popular because _______.
【正确答案】 B
【答案解析】细节题。文章最后一段倒数第二句和第三句中提到“一个大家庭里的所有人都可以享受一段一起旅行的欢乐时光，这就是移动之家深受欢迎的原因”。因此，B为正确答案。