D The eruption of a volcano in the Canary Islands could trigger a “mega-tsunami that would hit Atlantic coastlines with waves as high as 330 feet, scientists said on Wednesday. They said an eruption 题目和参考答案——青夏教育精英家教网—

题目内容

The eruption of a volcano in the Canary Islands could trigger a “mega-tsunami”（巨大海啸）that would hit Atlantic coastlines with waves as high as 330 feet, scientists said on Wednesday. They said an eruption of the Cumbre Vieja volcano on La Palma, part of the Spanish island chain off West Africa, was likely to cause a massive chunk（大块）of rock to break off, crashing into the sea and kicking up huge walls of water higher than any other in recorded history. The tsunami would be capable of traveling huge distances at up to 500 miles an hour, the scientists said in a research paper to be published soon.

Simon Day, of the Benfield Greig Hazard Research Centre at the University College of London, said that as the volcano was not erupting at present, the short-term and medium-term risks were “negligible”. But Cumbre Vieja should be monitored closely for any signs of activity so that emergency services could plan an effective response, he said. “Eruptions of Cumbre Vieja occur at intervals of decades to a century or so and there may be a number of eruptions before its collapse（倒塌）,” said Day, who cooperated on the research with Steven Ward of the University of California. “Although the year-to-year probability of a collapse is therefore low, the resulting tsunami would be a major disaster with indirect effects around the world.”

The effects would spread north, west and south of the Canaries, with the west Sahara bearing the worst of the wave’s energy. The energy released by the collapse would be equal to the electricity consumption of the entire United States in half a year.

Immediately after the landslide（山崩）,a huge wave of water 93,000 feet high and tens of miles wide would form. As the landslide rocks moved deeper under water, a tsunami would develop. Within 10 minutes, the tsunami would have moved a distance of almost 155 miles. On the west Saharan shore, waves would probably reach heights of 330 feet.

Florida and the Caribbean, the final north Atlantic destinations to be affected by the tsunami, would have to brace themselves for 165-foot waves some eight to nine hours after the landslide. Wave heights toward Europe would be smaller, but substantial waves would hit the coasts of Britain, Spain Portugal and France. The research paper estimated water would penetrate several miles inland and that the devastation would cause trillions of dollars in damage.

76. What would be the result of a big chunk rock falling into the sea?

A. Waves would be very high. B. The volcano would stop.

C. Walls of water would kick up a storm. D. An earthquake would take place.

77. The word “negligible”(Line 3, Paragraph 2) is closest in meaning to ______.

A. unimportant B. small C. predictable D. avoidable

78. From the passage we may learn that the volcano erupts ______.

A. every year B. every 5 to 9 years

C. every 10 to 100 years D. every 5 to 10 months

79. All of the following are true EXCEPT ______.

A future eruption of Cumbre Vieja volcano may experience a massive collapse

Waves generated by the landslide could even reach the coasts of the United States

The landslide-released energy is equal to half a year’s electricity consumption in the US

American scientists have managed to utilize the volcanic energy for civil purposes

【答案】

76-79 ABCD

【解析】略

练习册系列答案

相关题目

Every year thousands of tourists visit Pompeii, Italy. They see the sights that Pompeii is famous for—its stadium(运动场)and theatres, its shops and restaurants. The tourists do not, however, see Pompeii's people. They do not see them because Pompeii has no people. No one has lived in Pompeii for almost 2 000 years.

Once, Pompeii was a busy city of 22 000 people. It lay at the foot of Mount Vesuvius, a grass?covered volcano(火山). Mount Vesuvius had not erupted(喷发)for centuries, so the people of Pompeii felt safe. But they were not.

In August of AD 79, Mount Vesuvius erupted. The entire top of the mountain exploded, and a huge black cloud rose into the air. Soon stones and hot ash began to fall on Pompeii. When the eruption ended two days later, Pompeii was buried under 20 feet of stones and ashes. Almost all of its people were dead.

For centuries, Pompeii lay buried under stone and ash. Then, in the year 1861, an Italian scientist named Ginseppe began to uncover Pompeii. Slowly,carefully, Ginseppe and his men dug. The city looked almost the same as it had looked in AD 79. There were streets and fountains, houses and shops. There was a stadium with 20 000 seats. Perhaps the most important of all, there were everyday objects, which tell us a great deal about the people who lived in Pompeii. Many glasses and jars had some dark blue colour in the bottom, so we know that the people of Pompeii liked wine. They liked bread too, metal bread pans were in every bakery. In one bakery there were 81 round, flat loaves of bread—a type of bread that is still sold in Italy today.

Tiny boxes filled with a dark, shiny powder tell us that women liked to wear eyemakeup.

Ginseppe has died, but his work continues. One fourth has not been uncovered yet. Scientists are still digging, still making discoveries that draw the tourists to Pompeii.

1.Why do large numbers of people come to Pompeii each year?

A.To visit the volcano.

B.To shop and eat there.

C.To watch sports and plays.

D.To see how Pompeiians lived.

2.Why had so many Pompeiians remained by volcanic Mount Vesuvius?

A.The city nearby offered all kinds of fun.

B.The area produced the finest wine in Italy.

C.Few people expected the volcano to erupt again.

D.The mountain was beautiful and covered with grass.

3.Why did the city uncovered look almost the same as it had looked in AD 79?

A.Because Ginseppe and his men dug it slowly and carefully.

B.Because the city was buried alive and remained untouched.

C.Because scientists successfully rebuilt the city with everyday objects.

D.Because nobody had lived in the city ever since the volcano erupted.

4.What do we know about the Pompeiians who lived 2 000 years ago?

A.They lived more or less the same as Italians now do.

B.They liked women wearing all kinds of makeup.

C.They enjoyed a lazy life with drinking and eating.

D.They went back to Pompeii after the eruption in AD 79.

Every year thousands of tourists visit Pompeii, Italy. They see the sights that Pompeii is famous for ― its stadium (露天大型运动场) and theatres, its shops and restaurants. The tourists do not, however, see Pompeii’s people. They do not see them because Pompeii has no people. No one has lived in Pompeii for almost 2000 years. Once, Pompeii was a busy city of 22000 people. It lay at the foot of Mount Vesuvius, a grass-covered volcano . Mount Vesuvius had not erupted for centuries, so the people of Pompeii felt safe. But they were not.

For centuries, Pompeii lay buried under stone and ash. Then, in the year 1861, an Italian scientist named Ginseppe began to uncover Pompeii. Slowly, carefully, Ginseppe and his men dug. The city looked almost the same as it had looked in AD 79. There were streets and fountains（喷泉）, houses and shops. There was a stadium with 20000 seats. Perhaps the most important of all, there were everyday objects, which tell us a great deal about the people who lived in Pompeii. Many glasses and jars had some dark blue colour in the bottom, so we know that the people of Pompeii liked wine. They liked bread, too; metal bread pans were in every bakery. In one bakery there were 81 round, flat loaves of bread ― a type of bread that is still sold in Italy today. Tiny boxes filled with a dark, shiny powder tell us that women liked to wear eye makeup.

Ginseppe has died, but his work continues. One-fourth has not been uncovered yet. Scientists are still digging, still making discoveries that draw the tourists to Pompeii.

Why do large numbers of people come to Pompeii each year?

A. To visit the volcano B. To shop and eat there

C. To watch sports and plays D. To watch how Pompeiians lived

Why had so many Pompeiians remained by volcanic Mount Vesuvius?

A. The city nearby offered all kinds of fun.

B. The area produced the finest wine in Italy.

C. Few people expected the volcano to erupt again.

D. The mountain was beautiful and covered with grass.

Why did the city uncovered look almost the same as it had looked in AD 79?

A. Because Ginseppe and his men dug it slowly and carefully.

B. Because the city was buried alive and remained untouched.

C. Because scientists successfully rebuilt the city with everyday objects.

D. Because nobody had lived in the city ever since the volcano erupted.

What do we know about the Pompeiians who lived 2000 years ago?

A. They lived more or less the same as Italians now do.

B. They liked women wearing all kinds of makeup.

C. They enjoyed a good life with drinking and eating.

D. They went back to Pompeii after the eruption in AD 79.

A Tour City—Pompeii

Every year thousands of tourists visit Pompeii, Italy. They see the sights that Pompeii is famous for its stadium(运动场) and theatres, its shops and restaurants. The tourists do not, however, see Pompeii's people. They do not see them because Pompeii has no people. No one has lived in Pompeii for almost 2,000 years.

Once, Pompeii was a busy city of 22,000 people. It lay at the foot of Mount Vesuvius, a grass－covered volcano(火山). Mount Vesuvius had not erupted(喷发)for centuries, so the people of Pompeii felt safe. But they were not.

In August of AD 79, Mount Vesuvius erupted. The entire top of the mountain exploded,_and a huge black cloud rose into the air. Soon stones and hot ash began to fall on Pompeii. When the eruption ended two days later, Pompeii was buried under 20 feet of stones and ashes. Almost all of its people were dead.

For centuries, Pompeii lay buried under stone and ash. Then, in the year 1861, an Italian scientist named Ginseppe began to uncover Pompeii. Slowly, carefully, Ginseppe and his men dug. The city looked almost the same as it had looked in AD 79. There were streets and fountains, houses and shops. There was a stadium with 20,000 seats. Perhaps the most important of all, there were everyday objects, which tell us a great deal about the people who lived in Pompeii. Many glasses and jars had some dark blue colour in the bottom, so we know that the people of Pompeii liked wine. They liked bread too. Metal bread pans were in every bakery. In one bakery there were 81 round, flat loaves of bread—a type of bread that is still sold in Italy today. Tiny boxes filled with a dark, shiny power tell us that women liked to wear eye－makeup.

Ginseppe has died, but his work continues. One－fourth has not been uncovered yet. Scientists are still digging, still making discoveries that draw the tourists to Pompeii.

1. Why do large numbers of people come to Pompeii each year?

A. To visit the volcano.

B. To shop and eat there.

C. To watch sports and plays.

D. To see how Pompeiians lived.

2. Why had so many people remained by volcanic Mount Vesuvius?

A. The city nearly offered all kinds of fun.

B. The area produced the finest wine in Italy.

C. Few people expected the volcano to erupt again.

D. The mountain was beautiful and covered with grass.

3. Why did the city uncovered look almost the same as it had looked in AD 79?

A. Because Ginseppe and his men dug it slowly and carefully.

B. Because the city was buried alive and remained untouched.

C. Because scientists successfully rebuilt the city with everyday objects.

D. Because nobody had lived in the city ever since the volcano erupted.

4. What's the meaning of the underlined word “exploded” in the third paragraph?

A. 爆发 B. 震动 C. 倒塌 D. 爆裂

5. What do we know about the Pompeiians who lived 2,000 years ago?

A. They lived more or less the same as Italians now do.

B. They liked women wearing all kinds of makeup.

C. They enjoyed a lazy life with drinking and eating.

D. They went back to Pompeii after the eruption in AD 79.

(B)
The Hawaiian Islands are situated（位于） about two thousand miles away from North   America, right in the middle of the Pacific Ocean. Despite the distance the Islands actually make up the fiftieth state of the United States. The Islands were all formed by volcano（火山） eruption and on the largest of the islands, Hawai, or the Big Island, there are still two active volcanoes, the Mauna Loa and the Kilauea, which still erupt every few years.
On the Hawaiian islands the natives have a particularly strange way of indicating(指明) directions. They don't use the north, south, east and west system common to the rest of the world. They use the mauka and makai system. Mauka means "mountain".The mountains in Hawaii are always at the center of the islands, as these are volcanic is lands. Makai means "the sea". The islands are small and the system is simple. Wherever you want to visit, it can always be described in terms of where it lies in relation to the mountains and the sea. A typical conversation(谈话) between a native Hawaiian and a visitor might go as follows.
VISITOR： Excuse me! Could you tell me where the Sheraton Hotel is?            HAWAIIAN; Well ... Let me see ! From here it's two blocks mauka,and then one
block makai. You can't miss it!
1. This article would be most likely to appear in which of the following?
A. A novel                          B. A collection of stories
C. A travel book                   D. a women's magazine
2. Choose the most suitable title for the article.
A. The Big Island                    B. Giving Directions in Hawaii
C. Volcanoes                        D. The Hawaiian Islands
3. In Hawaii the mountains are in the center of the islands because_____
A. of the weather                    B. of die geological conditions
C. the islands were created by volcanic eruptions
D. of the islands' location in the pacific
4. To find your way in Hawaii, you must _______.
A. refer to geographical directions      B. refer to well - known establishments
C. refer to the location of the mountains and the sea
D. refer to the earth and the sea

(B)

The Hawaiian Islands are situated（位于） about two thousand miles away from North America, right in the middle of the Pacific Ocean. Despite the distance the Islands actually make up the fiftieth state of the United States. The Islands were all formed by volcano（火山） eruption and on the largest of the islands, Hawai, or the Big Island, there are still two active volcanoes, the Mauna Loa and the Kilauea, which still erupt every few years.

On the Hawaiian islands the natives have a particularly strange way of indicating(指明) directions. They don't use the north, south, east and west system common to the rest of the world. They use the mauka and makai system. Mauka means "mountain".The mountains in Hawaii are always at the center of the islands, as these are volcanic is lands. Makai means "the sea". The islands are small and the system is simple. Wherever you want to visit, it can always be described in terms of where it lies in relation to the mountains and the sea. A typical conversation(谈话) between a native Hawaiian and a visitor might go as follows.

VISITOR： Excuse me! Could you tell me where the Sheraton Hotel is? HAWAIIAN; Well ... Let me see ! From here it's two blocks mauka,and then one

block makai. You can't miss it!

1. This article would be most likely to appear in which of the following?

A. A novel B. A collection of stories

C. A travel book D. a women's magazine

2. Choose the most suitable title for the article.

A. The Big Island B. Giving Directions in Hawaii

C. Volcanoes D. The Hawaiian Islands

3. In Hawaii the mountains are in the center of the islands because_____

A. of the weather B. of die geological conditions

C. the islands were created by volcanic eruptions

D. of the islands' location in the pacific

4. To find your way in Hawaii, you must _______.

A. refer to geographical directions B. refer to well - known establishments

C. refer to the location of the mountains and the sea

D. refer to the earth and the sea

试题分类