描写火山的优美句子英语单词,描写春天的英语单词和句子推荐阅读:

1. 关于火山的140个单词的英语文章

A large eruption can be extremely dangerous for people living near a volcano. Flows of searing lava, which can reach 2,000 degrees Fahrenheit (1,250 degrees Celsius) or more, can be released, burning everything in its path, including whole towns. Boulders of hardening lava can rain down on villages. Mud flows from rapidly melting snow can strip mountains and valleys bare and bury towns. Ash and toxic gases can cause lung damage and other problems, particularly for infants and the elderly. Scientists estimate that more than 260,000 people have died in the past 300 years from volcanic eruptions and their aftermath.

Volcanoes tend to exist along the edges between tectonic plates, massive rock slabs that make up Earth's surface. About 90 percent of all volcanoes exist within the Ring of Fire along the edges of the Pacific Ocean.

2. 关于火山的英语文章（高二）

VolcanoA volcano is generally a conical-shaped hill or mountain built by accumulations of lava flows, tephra, and volcanic ash. About 95% of active volcanoes occur at the plate subduction zones and at the mid-oceanic ridges .The other 5% occur in areas associated with lithospheric hot spots. These hot spots have no direct relationships with areas of crustal creation or subduction zones. It is believed that hot spots are caused by plumes of rising magma that have their origin within the asthenosphere. Over the last 2 million years,volcanoes have been depositing lava, tephra, and ash in particular areas of the globe .These areas occur at hot spots, rift zones, and along plate boundaries where tectonic subduction is taking place. Not all volcanoes are the same. Geologists have classified five different types of volcanoes. This classification is based on the geomorphic form, magma chemistry, and the explosiveness of the eruption. The least explosive type of volcano is called a basalt plateau. These volcanoes produce a very fluid basaltic magma with horizontal flows. The form of these volcanoes is flat to gently sloping and they can occupy an area from 100,000 to 1,000,000 square kilometers. Deposits of these volcanoes can be as thick as 1,800 meters. Large basalt plateaus are found in the Columbia River Plateau, western India, northern Australia, Iceland, Brazil, Argentina, and Antarctica. Some basaltic magmas can produce very large slightly sloping volcanoes, 6 to 12°， that have gently flowing magmas called shield volcanoes. Shield volcanoes can be up to 9,000 meters tall. The volcanoes of the Hawaiian Islands are typical of this type. Extruded materials from this type of volcano mainly consist of low-viscosity basaltic lava flows .A cinder cone is a small volcano, between 100 and 400 meters tall, made up of exploded rock blasted out of a central vent at a high velocity . These volcanoes develop from magma of basaltic to intermediate composition . They form when large amounts of gas accumulate within rising magma. Examples of cinder cones include Little Lake Volcano in California and Paricutin Volcano in Mexico. Composite volcanoes are made from alternate layers of lava flows and exploded rock. Their height ranges from 100 to 3,500 meters tall. The chemistry of the magma of these volcanoes is quite variable ranging from basalt to granite. Magmas that are more granitic tend to be very explosive because of their relatively higher water content. Water at high temperatures and pressures is extremely volatile. Examples of composite volcanoes include Italy's Vesuvius, Japan's Mount Fuji, and Washington State's Mount Rainier and Mount St. Helens . The most explosive type of volcano is the caldera. The cataclysmic explosion of these volcanoes leaves a huge circular depression at the Earth's surface. This depression is usually less than 40 kilometers in diameter. These volcanoes form when "wet" granitic magma quickly rises to the surface of the Earth. When it gets to within a few kilometers of the surface the top of the magma cools to form a dome. Beneath this dome the gaseous water in the magma creates extreme pressures because of expansion. When the pressure becomes too great the dome and magma are sent into the Earth's atmosphere in a tremendous explosion. On the island of Krakatau, a caldera-type volcano exploded in 1883 ejecting 75 cubic kilometers of material in the air and left a depression in the ground some 7 kilometers in diameter. A potentially very destructive caldera covering an area of about 2,000 square kilometers exists under Yellowstone National Park in the United States .Investigations have discovered that over the last 2 million years this volcano has exploded on a regular interval of about 700,000 years. The last eruption occurred 630,000 years ago and the next could take place anytime. When the Yellowstone caldera last erupted, it blasted 1,000 cubic kilometers of volcanic ash and rock into the atmosphere. The ash ejected into the atmosphere created climatic havoc on a global scale. The ash would have blocked sunlight from being received at the ground surface for a few years. A reduction in the reception of solar radiation would have caused the globle climate to cool significantly. Over time this ash settled back to the Earth's surface covering more than half of North America.。

3. 有关火山的英语作文1200字

Haroun Tazieff, the Polish scientist, has spent his lifetime studying active

volcanoes and deep caves in all parts of the world. In 1948, he went to Lake

Kivu in the Congo to observe a new volcano which he later named Kituro. Tazieff

was able to set up his camp very close to the volcano while it was erupting

violently. Though he managed to take a number of brilliant photographs, he could

not stay near the volcano for very long. He noticed that a river of liquid rock

was coming towards him. It threatened to surround him completely, but Tazieff

managed to escape just in time. He waited until the volcano became quiet and he

was able to return two days later. This time, he managed to climb into the mouth

of Kituro so that he could take photographs and measure temperatures. Tazieff

has often risked his life in this way. He has been able to tell us more about

active volcanoes than any man alive.

4. 火山的英语单词怎么说

“火山”的英语单词是：volcano【vɒl'keɪnəʊ】

短语：

1、dance on a volcano 在火山上跳舞；大难将至犹自作乐

2、extinct volcano 死火山；精力衰退的人；丧失活力的人

3、sit on a volcano 置身于火山口上，处境危险

例句：

1、Lava boiled up from the crater of the volcano.

熔岩从火山口喷出。

2、Ash and cinders blazed down from the erupting volcano.

炽热的火山灰和火山渣从爆发的火山纷纷喷发落下。

3、That night, I watched him rappel into the area near a molten volcano on the island of Hawaii.

那天晚上，我看着他顺着绳索下到夏威夷岛上一个熔化的火山附近地区。

4、Until a decade ago, most scientists thought that only a volcano could do so.

直到十年前，大多数科学家认为只有火山才有这样的能量。

5、Balloon, baseball, basketball, football and volleyball all dance ballet on the volcano.

气球、棒球、篮球、足球和排球都在火山上跳芭蕾舞。

5. 描写“火山”的词语有哪些

山崩地裂

解释：山岳倒塌，大地裂开。形容响声巨大或变化剧烈。

造句：一声山崩地裂的知巨响，火箭升空了。

惊天动地

解释：使天地惊动。形容某个事件的声势或意义极大。

造句：伟人只在事业上惊天动地，他时常不声不响的深思熟虑道。

势不可挡

解释：来势迅猛，不可抵挡。

造句：这次篮球联赛，红队转败为胜，势不可挡，黄队却节节败退，无力回天。

1. 十万火急

解释：形容事情紧版急到了极点。

造句：他十万火急的向我走过来。

2. 河出伏流权

解释：比喻潜在力量爆发，其势猛不可挡。

造句：日出东方，其道大光；河出伏流，一泻汪洋。

6. 火山的英语单词怎么说

“火山”的英语单词是：volcano【vɒl'keɪnəʊ】 短语： 1、dance on a volcano 在火山上跳舞；大难将至犹自作乐 2、extinct volcano 死火山；精力衰退的人；丧失活力的人 3、sit on a volcano 置身于火山口上，处境危险 例句： 1、Lava boiled up from the crater of the volcano. 熔岩从火山口喷出。

2、Ash and cinders blazed down from the erupting volcano. 炽热的火山灰和火山渣从爆发的火山纷纷喷发落下。 3、That night, I watched him rappel into the area near a molten volcano on the island of Hawaii. 那天晚上，我看着他顺着绳索下到夏威夷岛上一个熔化的火山附近地区。

4、Until a decade ago, most scientists thought that only a volcano could do so. 直到十年前，大多数科学家认为只有火山才有这样的能量。 5、Balloon, baseball, basketball, football and volleyball all dance ballet on the volcano. 气球、棒球、篮球、足球和排球都在火山上跳芭蕾舞。