�、�.完形填空。從A、B、C、D四個選項中，選出一個正確答案，并將所選答案的字母填寫在答題紙上。(本大題共15小題，每小題1分，共15分)

　　Fill in each blank in the passage with the most likely answer. (15 points)

　　The United States is well-known for its network of major highways designed to help a driver get from one place to another in the shortest possible time. 16 these wide modem roads are generally smooth and well maintained, with 17 sharp curves and many straight sections ,a direct route is not always the most 18 one. Large highways often pass 19 scenic areas and interesting small towns. Furthermore ,these highways generally 20 large urban centers, which means that they become crowded with 21 traffic during rush hours, when the “fast, direct” way becomes a very slow route.

　　However, there is almost always another route to take 22 you are not in a hurry. Not far from the 23 .new “superhighways”, there are often older, 24 heavily traveled roads which go through the countryside. Lots of these are good two-lane roads; others are uneven roads 25 through the country. These secondary routes may go up steep slopes, along high 26 ,or down frightening hillsides to towns 27 in deep valleys. Through these less direct routes, longer and slower, they generally go to places 28 the air is clean and the scenery is beautiful, and the driver may have a 29 to get a fresh, clean 30 of the world.

　　16. A. Although

　　B. Because

　　C. Since

　　D. Therefore

　　17. A. little

　　B. few

　　C. much

　　D. many

　　18. A. terrible

　　B. possible

　　C. enjoyable

　　D. profitable

　　19. A. to

　　B. into

　　C. over

　　D. by

　　20. A. lead

　　B. connect

　　C. collect

　　D. communicate

　　21. A. large

　　B. fast

　　C. light

　　D. heavy

　　22. A. unless

　　B. if

　　C. as

　　D. since

　　23. A. relatively

　　B. regularly

　　C. respectively

　　D. reasonably

　　24. A. and

　　B. less

　　C. more

　　D. or

　　25. A. driving

　　B. crossing

　　C. curving

　　D. traveling

　　26. A. rocks

　　B. cliffs

　　C. roads

　　D. paths

　　27. A. lying

　　B. laying

　　C. laid

　　D. lied

　　28. A. there

　　B. when

　　C. which

　　D. where

　　29. A. space

　　B. period

　　C. chance

　　D. spot

　　30. A. view

　　B. variety

　　C. visit

　　D. virtue

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