单选题 Once (一次) an American was in an African town. He was on holiday now and got nothing to do. So he decided to go to the nearby city to do some shopping.
As soon as he got on a bus, the driver took out a yellow ticket and showed it to him. "You'd better buy a yellow ticket," said the driver. "It' s one dollar (美元). I've got two other kinds. The red one is fifty cents (美元) and the green one is ten cents. But I think you want a yellow one."
"Give me a green one, please." said the man. "Why not saving (节省) some money?"
The bus started. About half an hour later, the bus began to go up hill (上坡). Suddenly it stopped. "Yellow ticket passengers," the driver shouted, "stay in the bus please. Red ticket passengers get out and walk. Green ticket passengers, get out and push (推) the bus./

单选题 The American traveled to Afric
【正确答案】
【答案解析】我们仔细阅读文章开头三句话：Once an American was in an African town. 一个美国人曾经呆在一个非洲的小镇上。He was on holiday now and got nothing to do. “be on holiday”意思在度假。这个句子里面的“now”是“当时，这时”的意思。这句话的意思是他此时在度假、无事可做。所以他决定去附近的城市买点东西。这三句话交待清楚了他为什么要去附近的一座城市，却并没有指明他在那个小镇上做什么，是为什么去的那个非洲小镇。我们无从得知美国人是否在非洲旅游。
单选题 The American went to the nearby city to buy something.
【正确答案】 A
【答案解析】第一段第二句话告诉我们，他去附近的城市“do some shopping”，这个英语短语的意思就是“购物”。
单选题 The driver had four different tickets at different prices.
【正确答案】 B
【答案解析】从文章第二段，我们知道司机为这位美国人介绍了三种颜色的车票。其中，黄票，一美元；红票，五十美分；绿票，十美分。应该是乘坐该辆汽车，乘客可购买三种车票，票价各自不同。
单选题 The driver suggested all the passengers buy the yellow ticket.
【正确答案】 C
【答案解析】从文章第二段，我们获知这位美国人一上车，司机建议他买黄票，至于司机是否向所有的乘客提出这样的建议，文章没有提及。
单选题 The American had to get out of the bus and push it.
【正确答案】 A
【答案解析】美国人说：“Give me a green one, please. Why not save some money?”既然绿票便宜，美国人选择了绿票：但是汽车上坡的时候，司机发话了“Yellow ticket passengers, stay in the bus please. Red ticket passengers, get out and walk. Green ticket passengers, get out and push the bus.”买黄票的人坐着不动；买红票的人下车自己走；而买绿票的乘客必须要下去推车。这位美国人买的是绿票，当然要下去推车。