In the past,the Park Service focused on making the big scenic parks more __1_ and comfortable for tourists.Road were paved to allow "windshield visitors" to experince the grandeur of nature without leaving their cars,and a _2__ number of hotels and grocery stores were permitted to open __3_ the park boundaries.
Now this trend is changing.Plans have been made to __4_ the parks to their natural condition as much as possible.The objective of such a move would be to secure the preservation of the parks for future generations,__5_ allowing present-day visitors to experience pure wildeness,__6_ from any obvious signs of citilization——an opportunity which is quickly disappearing in the twentieth century.__7_ plans call only __8_ a reduction in the number of cars __9_ into the parks each day,but __10_,tourists may have to leave their cars at the gates and then dither visit the park on foot__11_ use park__12_.__13_,stores and hotels may no longer be allowed within park boundaries and even the number of campground may be restricted.
Denail National Park in Alaska serves as an excellent __14_ for this new type of park,one which has been changed only slightly from its __15_ state.There is only one road,unpaved in __16_,which cross __17_ Denali.As car traffic is strictly limited,many visitors experience the magnificent __18_ and wildlife from a park bus.There are no hotels or stores and only seven campgrounds within Denali's 3000 square miles.This __19_ isolation offers backpackers,canoeists,and other sport enthusiasts a __20_ physical and pshchological challenge.
1） A possible B accessible C approachable D reachable
2） A large B amazing C minumum D limited
3） A within B inside C on D at
4） A recover B turn C rebuild D restore
5） A thus B and C while D but
6） A released B devoid C free D resulted
7） A detailed B initial C overall D long-term
8） A at B on C for D about
9） A allowed B parked C moved D headed
10） A then B finally C consequently D eventually
11） A or B and C but D may
12） A transportation B traffic C facilities D lot
13） A exceptionally B additionally C increasing D extraordinarily
14） A prototype B example C model D pattern
16） A segment B portions C divisions D sections
15） A original B naturall C primitivel D rude
17） A in B into C off D through
18） A scenery B scene C sight D spectacle
19） A comparative B relative C strict D geographical
20） A strange B specific C special D distinct
