[单项选择]The Arctic fox is found throughout the Arctic, usually on tundra or mountains ______ the sea.
A. (by which near
B. ( near of
C. ( because near
D. ( near

[单项选择]When the boys were caught petty thieving, they usually chose to be beaten by Mr Abu because ______.

[单项选择]Much of northern Canada lies within the Arctic Circle, and ______ ice or the sparse vegetation known as tundra.
A. ( it is permanently covered by
B. ( by permanently it is covered
C. ( is permanently covered by it
D. ( it is covered by permanently

[单项选择]

Is there enough oil beneath the Arctic National Wildlife Refuge (保护区) (ANWR) to help secure America’s energy future President Bush certainly thinks so. He has argued that tapping ANWR’s oil would help ease California’s electricity crisis and provide a major boost to the country’s energy independence. But no one knows for sure how much crude oil lies buried beneath the frozen earth, with the last government survey, conducted in 1998,projecting output anywhere from 3 billion to 16 billion barrels.
The oil industry goes with the high end of the range, which could equal as much as 10% of U.S. consumption for as long as six years. By pumping more than 1 million barrels a day from the reserve for the next two to three decades, lobbyists claim, the nation could cut back on imports equivalent to all shipments to the U. S. from Saudi Arabia. Sounds good. An oil boom would also mean a multibillion-dollar windfall (意外之财) in tax revenues, royalties (开采权使用费) a
A. It will exhaust the nation's oil reserves.
B. It will help secure the future of ANWR.
C. It will help reduce the nation's oil imports.
D. It will increase America's energy consumption.

[单项选择] As silk blouses are in great demand, we do not usually grant any discount unless you place an order for more than 1,000 pieces.
A. 丝绸服装生产量大，即使你们的订购量不足1000件，我们也会适当给予折扣。
B. 由于女式丝绸衬衣供不应求，我们一般不给折扣，除非你预付1000件的定金。
C. 市场上丝绸服装很多．虽然你们订购量超过了1000件，我们也不给任何折扣。
D. 由于女式丝绸衬衣需求量很大，我们通常不给折扣，除非订购量超过1000件。

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Passage Two The flying fox is not a fox at all. It is an extra large bat that has got a fox’s head, and that feeds on fruit instead of insects. Like all bats, flying foxes hang themselves by their toes when it rest, and travel in great crowds when out flying. A group will live in one spot for years. Sometimes several hundreds of them occupy (占据) a single tree. As they return to the tree toward sunrise, they quarrel among themselves and fight for the best places until long after daylight. Flying foxes have babies once a year, giving birth to only one at a time. At first the mother has to carry the baby on her breast wherever she goes. Later she leaves it hanging up, and brings back food for it to eat. Sometimes a baby falls down to the ground and squeaks(尖叫) for help. Then the older ones swoop (俯冲) down and try to pick it up. If they fail to do so, it will die, Often hundreds of dead baby bats can be found lying on the ground at the foot of a tree.

At daybreak ev
A. fly out toward the sun
B. look for a new resting place
C. come back to their home
D. go out and look for food

[单项选择]The Eskimos are able to live in Arctic regions because ______.
A. they can endure severe living conditions
B. they are strong and energetic
C. food is abundant there
D. they have ways to protect themselves from cold

[单项选择]All of a sudden, a blizzard from the Arctic swept through the now______ streets.
A. lessened
B. deserted
C. neglected
D. insulated

[单项选择]What's the weather like in the Arctic region of European Russia more than 30,000 years ago
A. Moderate temperature, relatively dry and ice-free.
B. Extremely cold, relatively dry and ice-free.
C. Extremely cold, plenty of raining and ice free.
D. Extremely cold, relatively dry and ice frosted.

[单项选择]What' s the weather like in the Arctic region of European Russia more than 30,000 years ago
A. Moderate temperature, relatively dry and ice -free.
B. Extremely cold, relatively dry and ice- free.
C. Extremely cold, plenty of raining and ice- free.
D. Extremely cold, relatively dry and ice frosted.

[单项选择]In parts of the Arctic, the land grades into the landfast ice so ______ that you can walk off the coast and not know you are over the hidden sea.
A. permanently
B. imperceptibly
C. irregularly
D. precariously