六、短文填空。（共 10 小題；每小題 2 分，滿分 20 分）
請認真閱讀下面短文，填入一個適當的單詞或括號內單詞的正確形式。
When most people go on holiday, they take a plane or train. It's fast and easy 51. _to travel_ (travel) this way. But it's not quite the same as taking a road trip—52. _getting_ (get) into a car and driving across the country.
Road trips are a common pastime (消遣) in the USA. Some families take a week or two to drive across the country. The USA is built for road trips, since it has highways 53. _connecting_ nearly all towns and cities. There are rest areas along these highways for people to stop and take a break, as well as restaurants and motels (汽車旅館). Also, driving used to be much 54. _cheaper_ (cheap) than flying.
When I was in college, I drove from Michigan to Florida with three of my friends. We spent hours on the road, 55. _seeing_ (see) mountains, forests and lakes we'd never seen before. Once we got to Florida, we stayed with friends and family, telling them about all the cool things we saw. It was 56. _an_ unique (獨特的) experience that we wouldn't have had 57. _if_ we'd just flown to Florida.
These days, road trips aren't quite as common. Gas is more expensive now and road trips don't 58. _interest_ (interested) younger people any more. But in China, I've known a few people who've gone on road trips. They drive 59. _excitedly_ (excited) to faraway (遙遠的) places like Xizang and Xinjiang. It 60. _sounds_ (sound) like a fun way to get to know a country that is so big.
