The United States is wellknown for its network of major highways designed to help a driver get from one place to another in the shortest possible time. ___1___ these wide modern roads are generally ___2___ and well maintained, with___3___ sharp curves and straight sections, a direct route is not always the most ___4___ one. Large highways often pass ___5___ scenic areas and interesting small towns. Furthermore, these highways generally ___6___ large urban centers, which means that they become crowded with ___7___ traffic during rush hours, ____ 8___ the “fast, direct” route becomes a very slow route.
However, there is almost always another route to take ___9___ you are not in a hurry. Not far from the ___10___ new “superhighways”， there are often older,___11___ heavily traveled roads which go through the countryside. ___12___ of these are good twolane roads; others are uneven roads curving through the country. These secondary routes may go up steep slopes, along high ___13___ , or down frightening hillside to towns ___14___ in deep valleys. Through these less direct routes, longer and slower, they generally go to places ___15___ the air is clean and scenery is beautiful, and the driver may have a chance to get a fresh, clean view of the world.
1. A. Although B. Since C. Because D. Therefore
2. A. stable B. splendid C. smooth D. complicated
3. A. little B. few C. much D. many
4. A. terrible B. possible C. enjoyable D. profitable
5. A. to B. into C. over D. by
6. A. lead B. connect C. collectD. communicate
7. A. large B. fast C. high D. heavy
8. A. when B. for C. but D. that
9. A. unless B. if C. as D. since
10. A. relatively B. regularly C. respectively D. reasonably
11. A. and B. less C. more D. or
12. A. All B. Several C. Lots D. Some
13. A. rocks B. cliffs C. roads D. paths
14. A. lying B. layin