[填空题]surrounding

[单项选择]Why are the private lands surrounding Glacier National Park so important a. They function as a hunting preserve. b. They are restricted to government use. c. They are heavily populated. d. They contain natural habitats of threatened species.

[单项选择]The atmosphere is all the air surrounding the earth. Without it, we would be forced to seek shelter from the sun, as there would be no atmosphere to protect us from the sun’s deadly rays.
Large and powerful, the atmosphere consists of an ocean of gases hundreds of miles high. It presses down on our bodies with a force of more than fourteen pounds per square inch. The narrow column of air which rests upon our shoulders weighs almost 2000 pounds. But our bodies are built in such a way that this weight does not crush(压碎)us.
In this huge ocean of air there is more energy than in all the coal, oil, and gas we have on earth. Electrical energy is collected in the atmosphere as water is collected and stored in a dam. The existence of electricity in the air has been known for centuries. But a thorough study of electricity in the atmosphere was not possible until the development of radio and radar.
One scientist, Dr. Sydney Chapman, has tried to explain the electric field wh
A. the total amount of oxygen over the earth
B. mixture of gases surrounding the earth
C. a source of storms
D. the diffusion of waste gas

[填空题]

The moist breath of the surrounding rain forest flows through you with each lungful of air as the small group makes its way along the narrow trail carved out of the steep river bank. Above, sunlight filters through the high canopy(天棚); be low, the river flows lazily along, its high banks thick with jungle growth. You walk along the narrow path in the late morning sun, the jungle and your fellow hikers glistening in the hot dampness of the rain forest. Every several yards, your guide turns and explains the animals and plants surrounding you, or maybe a historical tidbit about the ancient trail you follow. Occasionally a raised hand abruptly motions the group to silence, a half- dozen pairs of eyes follow the guide’s stare; pee ring into the dense bush.., a sighting of an endemic jungle bird, a rare privilege to see and hear. You clamber along the trail, taking it all in.
As you walk along, you think about all the different angles you can use to write and publ