A volcano is an opening in the earth's surface through (14) lava, hot th gases, and rock fragment erupt. (15) 20 Lu Hoang Tri an opening occurs when melted rock from depth within the earth blasts through the surface. Most volcanoes are at the p of mountains, and the mountains themselves are also called volcanoes Eruptions of volcanic mountains are spectacular (16) huge fiery clouds rise over the mountains, an (17) sides. In other eruptions, red-hit ash and cinders shoot out the mountaintop, and large chunks of hot rock are blasted (18) few eruptions are so (19) eruptions occur on volcanic islands. Such islands are the tops of volcanic islands in some eruptions, d glowing rivers of lava flow down into the air. A that they blow the mountain apart. Some from that have been built (20) from the ocean floor by repeated eruptions. Other eruptions occur along narrow cracks in the (21) floor

Read the following passage, and answer the questions that follow

On April 30, 2018 the Pu’u ‘O’o crater on Hawaii’s Kilauea volcano, suddenly collapsed. It was the starting point for the volcano’s months long eruption, which went on to produce 320,000 Olympic-sized swimming pools’ worth of lava that transformed the landscape and ultimately destroyed 700 homes.

A volcanic eruption occurs when hot materials from the Earth's interior are thrown out of a volcano. Some eruptions are terrible explosions that throw out huge amounts of rock and volcanic ash and can kill many people. Some are quiet outflows of hot lava. Several more complex types of volcanic eruptions have been described by volcanologists. These are often named after famous volcanoes where that type of eruption has been seen. Some volcanoes may show only one type of eruption during a period of activity, while others may show a range of types in a series.

How many houses did the volcanic eruption in Hawaii demolish?

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Read the following passage, and answer the questions that follow

On April 30, 2018 the Pu’u ‘O’o crater on Hawaii’s Kilauea volcano, suddenly collapsed. It was the starting point for the volcano’s months long eruption, which went on to produce 320,000 Olympic-sized swimming pools’ worth of lava that transformed the landscape and ultimately destroyed 700 homes.

A volcanic eruption occurs when hot materials from the Earth's interior are thrown out of a volcano. Some eruptions are terrible explosions that throw out huge amounts of rock and volcanic ash and can kill many people. Some are quiet outflows of hot lava. Several more complex types of volcanic eruptions have been described by volcanologists. These are often named after famous volcanoes where that type of eruption has been seen. Some volcanoes may show only one type of eruption during a period of activity, while others may show a range of types in a series.

Do all volcanoes display only one type of eruption during a period of activity?

____________________________________________________________

Read the following passage, and answer the questions that follow

On April 30, 2018 the Pu’u ‘O’o crater on Hawaii’s Kilauea volcano, suddenly collapsed. It was the starting point for the volcano’s months long eruption, which went on to produce 320,000 Olympic-sized swimming pools’ worth of lava that transformed the landscape and ultimately destroyed 700 homes.

A volcanic eruption occurs when hot materials from the Earth's interior are thrown out of a volcano. Some eruptions are terrible explosions that throw out huge amounts of rock and volcanic ash and can kill many people. Some are quiet outflows of hot lava. Several more complex types of volcanic eruptions have been described by volcanologists. These are often named after famous volcanoes where that type of eruption has been seen. Some volcanoes may show only one type of eruption during a period of activity, while others may show a range of types in a series.

When does a volcanic eruption occur?

____________________________________________________________

Read the following passage, and answer the questions that follow

On April 30, 2018 the Pu’u ‘O’o crater on Hawaii’s Kilauea volcano, suddenly collapsed. It was the starting point for the volcano’s months long eruption, which went on to produce 320,000 Olympic-sized swimming pools’ worth of lava that transformed the landscape and ultimately destroyed 700 homes.

A volcanic eruption occurs when hot materials from the Earth's interior are thrown out of a volcano. Some eruptions are terrible explosions that throw out huge amounts of rock and volcanic ash and can kill many people. Some are quiet outflows of hot lava. Several more complex types of volcanic eruptions have been described by volcanologists. These are often named after famous volcanoes where that type of eruption has been seen. Some volcanoes may show only one type of eruption during a period of activity, while others may show a range of types in a series.

When did the Pu’u ‘O’o crater on Hawaii’s Kilauea volcano collapse?

___________________________________________________________

Choose the letter A, B, C or D to complete the passage below

A tsunami is a chain of fast moving waves in the ocean caused by powerful earthquakes or volcanic eruptions. Tsunami has a very long wave. It can be hundreds of kilometers (6) __________. Usually, tsunami starts suddenly. The waves travel (7) __________ a great speed across an ocean with little energy loss. They can remove sand from beaches, destroy trees, toss and drag vehicles, damage houses and even destroy whole towns.

The water will draw back from the coast half of the wave period prior to the wave getting to the coast. If the slope of the coast is not deep, the water may (8) __________ for hundreds of metres. People who do not know of the danger will often remain at the shore.

Tsunamis cannot (9) __________. However, there are ways to help stop people from dying from a tsunami. Some (10) __________with lots of tsunamis may use warning systems which may warn the population before the big waves reach the land. Because an earthquake that caused the tsunami can be felt before the wave gets to the shore, people can be warned to go somewhere safe.

Question 7:

A. in

B. on

C. at

D. of

Choose the letter A, B, C or D to complete the passage below

A tsunami is a chain of fast moving waves in the ocean caused by powerful earthquakes or volcanic eruptions. Tsunami has a very long wave. It can be hundreds of kilometers (6) __________. Usually, tsunami starts suddenly. The waves travel (7) __________ a great speed across an ocean with little energy loss. They can remove sand from beaches, destroy trees, toss and drag vehicles, damage houses and even destroy whole towns.

The water will draw back from the coast half of the wave period prior to the wave getting to the coast. If the slope of the coast is not deep, the water may (8) __________ for hundreds of metres. People who do not know of the danger will often remain at the shore.

Tsunamis cannot (9) __________. However, there are ways to help stop people from dying from a tsunami. Some (10) __________with lots of tsunamis may use warning systems which may warn the population before the big waves reach the land. Because an earthquake that caused the tsunami can be felt before the wave gets to the shore, people can be warned to go somewhere safe.

Question 10:

A. areas

B. traps

C. slopes

D. waves

Choose the letter A, B, C or D to complete the passage below

A tsunami is a chain of fast moving waves in the ocean caused by powerful earthquakes or volcanic eruptions. Tsunami has a very long wave. It can be hundreds of kilometers (6) __________. Usually, tsunami starts suddenly. The waves travel (7) __________ a great speed across an ocean with little energy loss. They can remove sand from beaches, destroy trees, toss and drag vehicles, damage houses and even destroy whole towns.

The water will draw back from the coast half of the wave period prior to the wave getting to the coast. If the slope of the coast is not deep, the water may (8) __________ for hundreds of metres. People who do not know of the danger will often remain at the shore.

Tsunamis cannot (9) __________. However, there are ways to help stop people from dying from a tsunami. Some (10) __________with lots of tsunamis may use warning systems which may warn the population before the big waves reach the land. Because an earthquake that caused the tsunami can be felt before the wave gets to the shore, people can be warned to go somewhere safe.

Question 8:

A. rise

B. raise

C. arise

D. raising