阅读理解
阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。
Tens of thousands of baby penguins (企鹅) face starvation after two giant icebergs broke off the Antarctic ice sheet and blocked their parents' way to feeding areas.
Adelie and emperor penguins nesting on the Ross Island are now forced to walk long distances over the icebergs to obtain food for their chicks, born during the November-December breeding (繁育) season.
“The penguins are having to walk 50 km further than usual to reach the sea,” said Dean Peterson. The flightless birds travel on land at just one to two km per hour.
The problem could halve (平分) the chick survival (存活) rate at the three Adelie penguin colonies on Ross Island
estimated at 130,000 breeding pairs. In all Antarotica, there is an estimated three million Adelie penguin breeding pairs.
Around 12,000 breeding pairs of emperor penguins, the largest penguin species at up to four feet tall, are also affected.
The icebergs broke from the vast Ross Ice shelf, south of New Zealand, in March 2000 and are now sandwiched between Ross Island and Franklin Island, 93 miles to the north.
Scientist Peterson estimated that penguins were taking days to make the round trip to the sea to fish, and then back to their nests to regurgitate (反刍) food for their chicks.
“At that point they were quite tired and probably don't have much to regurgitate,” he said. Penguins already have long odds on reaching adulthood, with only 10 percent surviving beyond adolescence(青春期).
“We are probably looking at halving that againwe are sitting down at maybe the five percent rate,” Peterson said, adding some penguins already appeared to be leaving the Ross Island to breed elsewhere.
Penguins come ashore to breed and then take it in turns to leave the nest to fetch fish and other sea food to feed their young.
Researchers say large blocks of the Antarctic ice sheet are breaking off for several reasons, including global warming.
Emperor and Adelie penguins are limited to Antarctica. The emperors weigh up to 66 pounds while Adelie penguins are much smaller, weighing around 11 pounds.
1．After the long trip, the mother penguins ________.
[ ]
A．are too tired to feed their young
B．can't bring up much to feed their young
C．are too hungry themselves
D．have already ate up all the food
2．The underlined phrase “have long odds on” probably means ________.
[ ]
3．From what scientist Peterson said, we can infer that ________.
[ ]
A．the survival rate of penguins is dropping
B．there are few penguins left on Ross Island
C．the present situation can cause the penguins to die out
D．penguins usually have a high survival rate
4．Which of the following best supports the main idea of the passage?
[ ]
A．Global warming caused the icebergs to break off.
B．The long trip made mother penguins too tired to feed their young.
C．The change of weather affects penguins.
D．Broken icebergs endanger penguin chicks.
七星图书口算速算天天练系列答案科目：高中英语 来源： 题型：053
阅读理解
In the 1940s, Pinehaven Park was one of Crafton City's loveliest recreation(娱乐)areas. Over 40 acres of woods and fields were open to the public. In the 1950s, part of the park was taken over by Crafton City's garbage. Fifteen acres were to be used for landfill disposal(理置). As time went on, more and more of the park was used for garage disposal and less for recreation. Two years ago, the park was closed to the public for good. Along with household garbage, industrial chemicals had for years been dumped (倾倒)in the Pinehaven landfill. These poisonous chemicals had begun to seep(渗)back up through the soil. All of Pinehaven Park had become dangerously polluted.
Last year, the fish in the Crafton River began to die. After a series of investigations(研究), it became clear that the people of Crafton City were not to blame. 100～150 miles upstream, big paper mills were dumping industrial wastes into the river. Little by little, the level of poison in the river began to rise. Finally, it became so polluted that the fish themselves could no longer survive.
Downtown Crafton used to be a quiet area. Ten years of remarkable growth changed that in a big hurry. But with Crafton City's new prosperity(繁荣)came a new problem: air pollution. And it is a serious problem. Air pollution levels in Crafton are regularly reaching those of the nation's large industrial cities.
(1)Which of the following best states the central idea of the passage?
[ ]
A．Chemical dumping is a serious threat to Crafton City's soil.
B．The rapid growth of industry has brought air pollution to Crafton City.
C．The disposal of garbage can destroy recreation areas.
D．Industrial growth and progress have resulted in the pollution of Crafton City's water, air, and soil.
(2)According to the passage, what portion of the park had originally been marked for use as a garbage dump?
[ ]
A．Less than half B．Exactly half
C．About one third D．Most of it
(3)As it is used in the passage, the phrase“for good”means ________.
[ ]
A．practically B．for ever
C．thoroughly D．advantageously
(4)According to the passage, one result of dumping industrial chemicals into the landfill was that ________.
[ ]
A．the land became unsafe for humans
B．the animals on the land died
C．the poisonous chemicals were washed into the nearby river
D．the smoke from the chemicals polluted the air surrounding the landfill
查看答案和解析>>
科目：高中英语 来源：四川省绵阳中学2009－2010学年高一下学期入学考试英语试题 题型：050
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
查看答案和解析>>
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com
