The United States is well-known for its network of major highways designed to help a drive

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. ___61___ these wide modern roads are generally ___62___ and well maintained, with ___63___ warp curves (弯道） and many ___64___ sections, a direct route is not always ___65___ enjoyable one. Large highways often pass ___66___ scenic areas and interesting small towns. Furthermore, these highways generally ___67___ large urban centers, which means that they become crowded with ___68___ traffic during rush hours, when the“fast, direct”way becomes a very ___69___ route.

However, there ___70___ almost always another route to take ___71___ you are not in a hurry. Not far ___72___ the relatively new“superhighways”,there are often older，___73___ heavily traveled roads which go through the countryside. ___74___ of these are good two-lane (双车道）roads; others are uneven roads cunning through the country. These secondary routes may ___75___ steep slopes (陡坡), along high cliffs, or down frightening hillsides to towns ___76___ in deep valleys. Through these less direct ___77___ , longer and slower, they generally go to places ___78___ the air is clean and the scenery is beautiful, and the driver have a___ 79___ to get a fresh, clean ___80___ of the world.

61_________

A.Although

B.Since

C.Because

D.Therefore

62A.hard

B.stupid

C.smooth

D.deep

63A.much

B.few

C.little

D.a little

64A.soft

B.rude

C.relaxing

D.straight

65A.less

B.the least

C.the most

D.the worst

66A.to

B.into

C.over

D.by

67A.lead

B.connect

C.collect

D.communicate

68A.large

B.fast

C.light

D.heavy

69A.slow

B.fast

C.quick

D.speedy

70A.was

B.were

C.is

D.are

71A.unless

B.if

C.as

D.are

72A.from

B.on

C.in

D.through

73A.and

B.less

C.more

D.or

74A.all

B.Several

C.Lots

D.Some

75A.go down

B.go to

C.go up

D.go in

76A.lying

B.laying

C.laid

D.lied

77A.rocks

B.routes

C.valleys

D.villages

78A.there

B.when

C.which

D.where

79A.space

B.period

C.chance

D.spot

80A.view

B.opinion

C.order

D.victory

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