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Alaska is a natural wonder, aboutthousand square kilometers are covered by glaciers, which

Alaska is a natural wonder, about thousand square kilometers are covered by glaciers, which are huge, slow-moving ______.

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更多“Alaska is a natural wonder, ab…”相关的问题

第1题

Alaska was originally part of Russia, but was bought _______. A. as fish does

Alaska was originally part of Russia, but was bought _______.

A. as fish does

B. because of its rich natural resources

C. by the United States in the 19th century

D. shines day and night

E. only a very small percentage

F. a limited amount of the gold found there.

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第2题

Gold did not bring to Alaska as much wealth__________ A. as fish does B. bec

Gold did not bring to Alaska as much wealth__________

A. as fish does

B. because of its rich natural resources

C. by the United States in the 19th century

D. shines day and night

E. only a very small percentage

F. a limited amount of the gold found there.

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第3题

According to statistics, _________ of the total area of Alaska has been used for fa

rming.

A. as fish does

B. because of its rich natural resources

C. by the United States in the 19th century

D. shines day and night

E. only a very small percentage

F. a limited amount of the gold found there.

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第4题

Alaska is disappearing slowly but surely. Since the 1950s, it is estimated that as much as

15 percent of Alaska’s area has disappeared. But how can a whole state be disappearing？ One reason for Alaska’s gradual disappearance is the melting its glaciers. According to one geologist at the US Geological Survey, about 98 percent of Alaska’s glaciers are either unmoving or diminishing. This diminishing seems mainly due to the increase in global temperatures. Since the 1960s, the average year-round temperature has increased by 5℉. Furthermore, the average winter temperature has increased by 8℉. Presently, an estimated 24 cubic miles of ice is disappearing from Alaskan glaciers every year. It may be even more in the near future, as some scientists predict that the average world temperature could go up 2.5 to 10℉by the year 2010. Another problem contributing to Alaska’s gradual disappearance is its permafrost. (4) Much of the land in Alaska was permanently frozen, or frozen for most of the year, thus maintaining its integrity. Now, the thawing permafrost is causing a number of problems on land. Roads and utility poles are collapsing. Also, the hard permafrost which originally prevented beaches from eroding during violent storms is now melting. Affected villages are forced to relocate. For villages on small low islands, one terrible storm could wipe out the entire community. The melting permafrost and increasing temperature are also having a negative impact on the forests of Alaska. As the permafrost under the forests melts, insects that normally don’t turn up until the warmer seasons are appearing sooner. The spruce-bark beetle, for example, is increasing in numbers as a result of global warming. It usually takes about two years for these beetles to grow and reproduce in a very cold weather. However, due to the increase in temperatures, spruce-bark beetles are damaging as many trees in one year as they previously damaged in two. At this rate, Alaska’s forest won’t survive the turn of the century. Some scientists believe that human activity is linked to a global increase in weather temperature. Whether the rising temperature are caused by human activity or natural changes, the fact remains that Alaska is warming. Some others argue that global warming may be a normal trend on the Earth’s temperature chart. (5) One theory argues that we are near the end of a so-called “Little Ice Age”, and the return of the glaciers is natural result of this cycle. Whether natural or produced by humans, there is little hope for the immediate future of glaciers as we know them. Horribly, this could be a preview of what will happen to the rest of the world in the next century. Questions 1-3 Answer the following questions briefly according to the passage. 1. What are disappearing in Alaska actually？ 2. How much ice is melting each year according to the survey？ 3. Why do insects damage more trees than before？ Questions 4-5 Translate the underlined sentences in the passage into Chinese. 4. Much of the land in Alaska was permanently frozen, or frozen for most of the year, thus maintaining its integrity 5. One theory argues that we are near the end of a so-called “Little Ice Age”, and the return of the glaciers is natural result of this cycle. Whether natural or produced by humans, there is little hope for the immediate future of glaciers as we know them.

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第5题

听力原文： Alaska which was called Russian America before it was sold to the United States

of America joined the Union as the Forty-ninth state in 1959. Alaska is now the largest of all the 50 states Hawaii is fiftieth state of the Union of the United States. It was in 1867 that President A. Johnson's Secretary of State, Seward bought Alaska from the Russians at a cost of $7.2 million. The buying of the huge northern land mass seemed at first something foolishly done. Not only was Alaska difficult to reach, but it was also hard to live in, and appeared to have no importance in time of war. Besides, there are volcanoes there as Alaska lies on the Pacific" ring of fire. "In Alaska large treeless areas are covered with snow all the year. For these reasons the buying of Alaska was called" Seward's Folly" at that time. However in 1896 gold was found in Alaska, and people poured into the land quickly. Since then other important natural resources were discovered, including oil. Soon people changed their thinking about" Seward's Folly. "But most people visit Alaska in order to see the endless beauty of nature that the northern land discloses to them. For instance, there are about 11,000 islands in Alaska. And in a certain area of Alaska the sun does not set for 82 days every year.

When did Seward buy Alaska from the Russians？

A．In 1869.

B．In 1959.

C．In 1867.

D．In 1872.

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第6题

听力原文：Alaska, which was called Russian America before it was sold to the United States,

听力原文： Alaska, which was called Russian America before it was sold to the United States, joined the Union as the forty-ninth state in 1959. (Hawaii was the fiftieth state to join the Union. ) Alaska is now the largest of all the 50 states in the U.S.

It was in 1867 that President A. Johnson's Secretary of State, Seward, bought Alaska from the Russians at a cost of $ 7.2 million. The buying of the huge northern land mass seemed at first something foolishly done. Nor only was Alaska difficult to reach, but it was also hard to live in, and it appeared to have no importance in times of war. Besides, there are volcanoes there as Alaska lies on the Pacific "ring of fire." In Alaska, large treeless areas are covered with snow all the year round. For these reasons the buying of Alaska was called "Seward's Folly" at that time.

However, in 1896 gold was found in Alaska, and people poured into the land quickly. Since then other important natural resources were discovered, including oil. Soon, people changed their thinking about "Seward's Folly".

But most people visit Alaska in order to see the endless beauty of nature that the northern land discloses to them. For instance, there are about 11,000 islands in Alaska. And in a certain area of Alaska, the sun does not set for 82 days every year.

(33)

A．In 1959.

B．In 1867.

C．In 1896.

D．In 1872.

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第7题

Alaska, which was called Russian America before it was sold to the United States of Americ

a, joined the union as the forty-ninth state in 1959. Alaska is now the largest of all the 50 states of the United States. It was in 1867 that President A. Johnsons Secretary of State(国务卿), Seward bought Alaska from the Russians at a cost of 7. 2 million. The buying of the huge northern land mass seemed at first something foolishly done. Not only was Alaska difficult to reach, but it was also hard to live in, and it appeared to have no importance in time of war. Besides, there are volcanoes there as Alaska lies on the Pacific " ring of fire"(火山带). In Alaska large treeless areas are covered with snow all the year. For these reasons the buying of Alaska was called "Sewards Fooly" at that time. However, in 1896 gold was found in Alaska, and people poured into the land quickly. Since then other important natural resources were discovered, including oil. Soon people changed their thinking about "Sewards Fooly". But most people visit Alaska in order to see the endless beauty of nature that the northern land discloses to them. For instance, there are about 11, 000 islands in Alaska. And in a certain area of Alaska the sun does not set for 82 days every year.

Alaska belonged to ______before 1867.

A．Russia

B．America

C．Canada

D．Japan

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第8题

Alaska, which was called Russian America before it was sold to U. S. A. ,joined the union as the forty-ninth state in 1959. Alaska is now the largest of all the 50 states of the U. S.. It was in 1867

The buying of the huge northern land mass seemed at first something foolishly done. Not only was Alaska difficult to reach, but it was also hard to bye in, and it appeared to have no importance in time of war. Besides, there are volcanoes there as Alaska hes on the Pacific" ring of fire". In Alaska large treeless areas are covered with snow all the year. For these reasons the buying of Alaska was called "Seward&39;s Fooly" at that time.

However, in 1896 gold was found in Alaska, and people poured tin to the land quickly. Since then other important natural resources were discovered, including oil. Soon people changed their thinking about "Seward&39;s Fooly". But most people visit Alaska in order to see the endless beauty of nature that the northern land discloses to them. For instance, there are a- bout 11,000 islands in Alaska. And in a certain area of Alaska the sun does not set for 82 days every year.

1、Alaska belonged to__________before 1867.

A.Russia

B.America

C.Canada

D.Japan

Tourists came to Alaska to__________.A.study its importance in war

B.study its volcanoes

C.enjoy its freezing weather

D.enjoy its beauty of nature

The buying of Alaska was first called__________.A.a foolish thing

B.Seward's Fooly

C.Johnson's Fooly

D.President's Foolishness

Volcanoes__________in Alaska as__________.A.are not found ;large parts of the land is covered with snow

B.are not found ;it is at the northern top of America

C.are found; it is on the Pacific" ring of fire"

D.are found;there are so many islands

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第9题

听力原文：Alaska, which was called Russian America before it was sold to the United States,

joined the Union as the forty- ninth state in 1959. (Hawaii was the fiftieth state to join the Union.) Alaska is now the largest of all the 50 states in the U.S.

It was in 1867 that President A. Johnson's Secretary of State, Seward, bought Alaska from the Russians at a cost of $ 7.2 million. The buying of the huge northern land mass seemed at first something foolishly done. Not only was Alaska difficult to reach, but it was also hard to live in, and it appeared to have no importance in times of war. Besides, there are volcanoes there as Alaska lies on the Pacific "ring of fire." In Alaska, large treeless areas are covered with snow all the year round. For these reasons the buying of Alaska was called "Seward's Folly" at that time.

(39)

A．In 1959.

B．In 1896.

C．In 1867.

D．In 1872.

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