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Read the following two passages and choose the correct answer to each question.

Every year in late December, a southward-moving current warms the water along the Pacific coast of Peru. Because the warm current arrives around Christmas, the Peruvians named it El Nino, "boychild". Until the mid 1970s, El Nino was an unrecognised local phenomenon, until scientists began to realise that El Nino, later named EI Nino Southern Oscillation (ENSO), is part of a huge ocean and atmosphere system that is felt as far away as Australia and Indonesia.

Every few years the El Nino current is warmer than normal, causing greater ocean warming and consequently changes in the normal patterns of sea and surface temperatures. The resulting changes in atmospheric pressure affect trade wind speeds and the location of the largest thunderstorms, thus affecting weather patterns around the world. The shift in location of the Pacific's largest thunderstorms, which usually occur from the Western Pacific to the Central Pacific, changes global weather patterns because the thunderstorms pump air into the atmosphere in different places than normal. The result is a shift in the location of high- and low-pressure areas, wind patterns, and the paths followed by storms.

From 1982 to 1983 the El Nino condition caused greater than average precipitation along the US West Coast and sent five hurricanes to French Pollynesia, which normally goes years without hurricanes. That same year, El Nino was linked to floods in Louisiana, Florida, Cuba, Ecuador, Peru, and Bolivia, and to droughts in Hawaii, Mexico, Southern Africa, the Philippines, Indonesia and Australia.

In response to the 1982-83 global weather disruption, the World Meteorological Organization initiated the Tropical Ocean and Global Atmosphere (TOGA) program. The goal of the 10-year program is to gain a better understanding of El Nino so scientists can forecast future El Nino episodes and their likely results.

1. Which of the following could be the title of the passage?

A. A Natural Phenomenon

B.An Ocean and Atmosphere System

C.A Kind of "Boychild"

D. The Forecast of the Future

2. The highlighted word "it" in the passage refers to __________.

A. December

B. the warm current

C. Christmas

D. the coast of Peru

3. It can be inferred from the passage that before the mid 1970s the scientists __________.

A.had already realized El Nino

B.knew nothing about El Nino

C. devised the name El Nino

D. felt El Nino in Australia and Indonesia

4. According to the passage, El Nino can affect __________.

A. wind speed

B. world trade

C. the atmosphere

D. the oceans

5. With which of following does the word “initiated” in the passage could best be replaced?

A. produced

B.responded

C. disrupted

D. established

2
18 tháng 7 2019

1)a

2)b

3)b

4)a

5)d

18 tháng 7 2019

51.A

52.B

53.B

54.A

55.D

A hurricane is a huge storm that forms over warm ocean water. Bands of thunderstorms form and swirl around and around because the rotation of the earth. As more and more thunderstorms form, the hurricane gets bigger and bigger. A hurricane is one of the world's worst storms because it can last for days or weeks. Hurricanes can also be very large. They may cover hundreds of miles and affect large areas of land. For a storm to be classified as a hurricane, wind speeds within the storm have to...
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A hurricane is a huge storm that forms over warm ocean water. Bands of thunderstorms form and swirl around and around because the rotation of the earth. As more and more thunderstorms form, the hurricane gets bigger and bigger. A hurricane is one of the world's worst storms because it can last for days or weeks.

Hurricanes can also be very large. They may cover hundreds of miles and affect large areas of land. For a storm to be classified as a hurricane, wind speeds within the storm have to reach at least 74 per hour. But hurricane winds can reach speeds of over 155 miles per hour! A large amount of destruction may occur with winds that strong. Roofs may be torn off homes. Buildings may be flattened. Trees topple over. Hurricanes are deadly, but not just because of their winds. They can also produce very heavy rains and huge waves that slam into the coastline. Hurricanes are very common along the east coast of the United States. Here, wind, waves, and rain do the most damage.

Luckily, meteorologists (people who study weather) can forecast hurricanes days in advance by using radar technology. Radar is a little bit like a moving picture. It shows how big storms are and which way they are moving. Radar images people time to prepare for a coming storm. If the storm is very strong, home and business owners will put up plywood to protect their glass windows and doors. People who live along the coast will evacuate. They'll go to a hurricane shelter or stay with friends and relatives who live in safer places farther inland. Many lives are saved every year by people who take the necessary precautions.

Question28. What is a hurricane?

A. a tidal wave B. a huge storm C. a thunderstorm D. a tsunami

Question 29. What makes a hurricane?

A. thunderstorms B. strong winds C. seawater D. the earth rotation

Question 30. What of the following is not correct?

A. A hurricane is very dangerous because it lasts for days and weeks.

B. The hurricane wind speeds per hour can be nearly twice as fast as the wind speeds.

C. A hurricane can reach speeds of at least 74 km per hour.

D. Hurricanes often appear along the east coast of the United States.

Question 31. Who is meteorologist?

A. People study weather.

B. People do businesses in the meteorological field.

C. People live along the coast.

D. People are evacuated from the regions affected by hurricanes.

Question 32. What is radar used for?

A. making moving pictures

B. showing the size of hurricanes and their movements

C. giving people time to prepare for a coming storm

D. All above

3
27 tháng 4 2020

thua😣 😨

27 tháng 4 2020

makes bỏ s

Over the past 600 years, English has grown from a language of few speakers to become the dominant language of international communication. English as we know it today emerged around 1350, after having incorporated many elements of French that were introduced following the Norman invasion of 1030. Until the 1600s, English was, for the most part, spoken only in England and had not extended even as far as Wales, Scotland, or Ireland. However, during the course of the next two centuries, English...
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Over the past 600 years, English has grown from a language of few speakers to become the dominant language of international communication. English as we know it today emerged around 1350, after having incorporated many elements of French that were introduced following the Norman invasion of 1030. Until the 1600s, English was, for the most part, spoken only in England and had not extended even as far as Wales, Scotland, or Ireland. However, during the course of the next two centuries, English began to spread around the globe as a result of exploration, trade (including slave trade), colonization, and missionary work. Thus, small enclaves of English speakers became established and grew in various parts of the world. As these communities proliferated, English gradually became the primary language of international business, banking, and diplomacy.
Currently, about 80 percent of the information stored on computer systems worldwide is in English. Two-thirds of the world's science writing is in English, and English is the main language of technology, advertising, media, international airports, and air traffic controllers. Today there are more than 700 million English users in the world, and over half of these are non-native speakers, constituting the largest number of non-native users than any other language in the world. 1. What is the main topic of this passage? A. The number of non-native users of English B. The French influence on the English language C. The expansion of English as an international language D. The use of English for science and technology 2. Approximately when did English begin to be used beyond England? A. In 1066 B. Around 1350 C. Before 1600 D. After the 1600s 3. According to the passage, all of the following contributed to the spread of English around the world EXCEPT ________. A. the slave trade B. the Norman invasion C. missionaries D. colonization 4. The word "enclaves" in line 10 could best be replaced by which of the following? A. communities B. organizations C. regions D. countries 5. The word "proliferated" in line 11 is closest in meaning to which of the following? A. prospered B. organized C. disbanded D. expanded
4
4 tháng 1 2020

Over the past 600 years, English has grown from a language of few speakers to become the dominant language of international communication. English as we know it today emerged around 1350, after having incorporated many elements of French that were introduced following the Norman invasion of 1030. Until the 1600s, English was, for the most part, spoken only in England and had not extended even as far as Wales, Scotland, or Ireland. However, during the course of the next two centuries, English began to spread around the globe as a result of exploration, trade (including slave trade), colonization, and missionary work. Thus, small enclaves of English speakers became established and grew in various parts of the world. As these communities proliferated, English gradually became the primary language of international business, banking, and diplomacy.
Currently, about 80 percent of the information stored on computer systems worldwide is in English. Two-thirds of the world's science writing is in English, and English is the main language of technology, advertising, media, international airports, and air traffic controllers. Today there are more than 700 million English users in the world, and over half of these are non-native speakers, constituting the largest number of non-native users than any other language in the world.

1. What is the main topic of this passage?

A. The number of non-native users of English

B. The French influence on the English language

C. The expansion of English as an international language

D. The use of English for science and technology

2. Approximately when did English begin to be used beyond England? A. In 1066

B. Around 1350

C. Before 1600

D. After the 1600s

3. According to the passage, all of the following contributed to the spread of English around the world EXCEPT ________.

A. the slave trade

B. the Norman invasion

C. missionaries

D. colonization

4. The word "enclaves" in line 10 could best be replaced by which of the following?

A. communities

B. organizations

C. regions

D. countries

5. The word "proliferated" in line 11 is closest in meaning to which of the following?

A. prospered

B. organized

C. disbanded

D. expanded

4 tháng 1 2020

1 C

2 D

3 B

4 A

5 D

Read the text and choose the best options : Australia is the only country that fills an entire continent. It is the smallest continent in the world but the sixth largest country. Australia, called the island continent, is totallt surrounded by water. The island continent is, in large part, a very dry, flat land. Yet it supports a magnificent anf unusual collection of wildlife. Australia is a land of oddities. There are many unusual animals and plants that cannot be found anywhere ellse in the...
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Read the text and choose the best options :

Australia is the only country that fills an entire continent. It is the smallest continent in the world but the sixth largest country. Australia, called the island continent, is totallt surrounded by water. The island continent is, in large part, a very dry, flat land. Yet it supports a magnificent anf unusual collection of wildlife. Australia is a land of oddities. There are many unusual animals and plants that cannot be found anywhere ellse in the world. Because the island continent was separated from the rest of the world for many years, these animals developed in different ways. Many of the animals in Australia are marsupials. Marsupials are animals such as koalas and wombats.The kangaroo is perhaps the best known of the marsupials. Besides the marsupial, the strange animals of the continent include emu and the duckbill platypus. There are many physical feature of Australia that also are unique, including the central part of the country known as "Outback" , which consists off three main deserts. More than half of all Australians live in large, morden cities along the coast. There are so many people living in the small towns on the edge of the Outback, where there is plenty of grassfor raising sheep and cattle. Autralia rates first in the world for sheep raising. In fact, there are more than 10 times as many sheep in Australia as there are people!

1. The text mainly discusses.........

A. The geography B. The wildlife of Australia C. The economy of Australia D. A and B are correct

2. Which of the following is true according to the text?

A. Australia is surrounded by two large bodies of water

B. Australia has unique and strange collection of wildlife

C.Australia don't have any deserts

D. Australia is a large continent

3. Which animal is NOT mentioned in the text?

A. Koala B. Camel C. Sheep D. Platypus

4. The majority of Australians live in/on............

A. The small towns B. The desert C. Farms D. Big cities

2
7 tháng 5 2018

Read the text and choose the best options :

Australia is the only country that fills an entire continent. It is the smallest continent in the world but the sixth largest country. Australia, called the island continent, is totallt surrounded by water. The island continent is, in large part, a very dry, flat land. Yet it supports a magnificent anf unusual collection of wildlife. Australia is a land of oddities. There are many unusual animals and plants that cannot be found anywhere ellse in the world. Because the island continent was separated from the rest of the world for many years, these animals developed in different ways. Many of the animals in Australia are marsupials. Marsupials are animals such as koalas and wombats.The kangaroo is perhaps the best known of the marsupials. Besides the marsupial, the strange animals of the continent include emu and the duckbill platypus. There are many physical feature of Australia that also are unique, including the central part of the country known as "Outback" , which consists off three main deserts. More than half of all Australians live in large, morden cities along the coast. There are so many people living in the small towns on the edge of the Outback, where there is plenty of grassfor raising sheep and cattle. Autralia rates first in the world for sheep raising. In fact, there are more than 10 times as many sheep in Australia as there are people!

1. The text mainly discusses.........

A. The geography B. The wildlife of Australia C. The economy of Australia D. A and B are correct

2. Which of the following is true according to the text?

A. Australia is surrounded by two large bodies of water

B. Australia has unique and strange collection of wildlife

C.Australia don't have any deserts

D. Australia is a large continent

3. Which animal is NOT mentioned in the text?

A. Koala B. Camel C. Sheep D. Platypus

4. The majority of Australians live in/on............

A. The small towns B. The desert C. Farms D. Big cities

12 tháng 8 2019

1. The text mainly discusses.........

A. The geography B. The wildlife of Australia C. The economy of Australia D. A and B are correct

2. Which of the following is true according to the text?

A. Australia is surrounded by two large bodies of water

B. Australia has unique and strange collection of wildlife

C.Australia don't have any deserts

D. Australia is a large continent

3. Which animal is NOT mentioned in the text?

A. Koala B. Camel C. Sheep D. Platypus

4. The majority of Australians live in/on............

A. The small towns B. The desert C. Farms D. Big cities

The Indian Ocean is the world's third largest ocean, after the Pacific and Atlantic Oceans. It (1) ______ to the south of Asia, to the west of Australia and Indonesia, and to the east of Africa. Unlike the Atlantic and Pacific, it has no (2) ___ opening to the north. Therefore, the Suez Canal, (3) _____ opened in 1869, is a very important shipping route (4) _____ the Indian Ocean and the Mediterranean Sea. The waters of the Indian Ocean are (5) _____ calmer than those of the Pacific and...
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The Indian Ocean is the world's third largest ocean, after the Pacific and Atlantic Oceans. It (1) ______ to the south of Asia, to the west of Australia and Indonesia, and to the east of Africa. Unlike the Atlantic and Pacific, it has no (2) ___ opening to the north. Therefore, the Suez Canal, (3) _____ opened in 1869, is a very important shipping route (4) _____ the Indian Ocean and the Mediterranean Sea. The waters of the Indian Ocean are (5) _____ calmer than those of the Pacific and Atlantic Oceans, and are, therefore, easier to travel across. There are about 5,000 islands in the Indian Ocean. (6) _____, such as the Seychelles and Maldives, have beautiful beaches and a warm climate, and now (7) _____ increasing numbers of tourists. During the winter, cool, dry winds blow over the ocean from the northeast. In summer, the (8) ____ of the wind changes and south-easterly winds blow north from the ocean, bringing (9) ___ rains called monsoons' to coastal areas. (10) ____ farmers depend on these rains, they can be a problem, often causing serious flooding

.1. A. lies B. finds C. puts D. gets

2. A. right B. natural C. realistic D. correct

3. A. when B. what C. where D. which

4. A. among B. on C. between D. by

5. A. too B. much C. very D. so

6. A. Many B. Each C. All D. Any

7. A. catch B. lead C. call D. attract

8. A. direction B. development C. progress D. balance

9. A. thick B. large C. heavy D. high

10. A. Because B. Although C. However D. Whether

0
Read the text then decide these sentences are true or false CLIMATE CHANGE AND GLOBAL WARMING Climate change Climate change, also called global warming, refers to the rise in average surface temperatures on Earth. An overwhelming scientific consensus maintains that climate change is due primarily to the human use of fossil fuels, which releases carbon dioxide and other greenhouse gases into the air. The gases trap heat within the atmosphere, which can have a range of effects on ecosystems,...
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Read the text then decide these sentences are true or false

CLIMATE CHANGE AND GLOBAL WARMING

Climate change

Climate change, also called global warming, refers to the rise in average surface temperatures on Earth. An overwhelming scientific consensus maintains that climate change is due primarily to the human use of fossil fuels, which releases carbon dioxide and other greenhouse gases into the air. The gases trap heat within the atmosphere, which can have a range of effects on ecosystems, including rising sea levels, severe weather events, and droughts that render landscapes more susceptible to wildfires.

The green house effect

While other planets in Earth's solar system are either scorching hot or bitterly old, Earth's surface has relatively mild, stable temperatures. Earth enjoys these temperatures because of its atmosphere, which is the thin layer of gases that cloak and protect the planet. However, 97 percent of climate scientists agree that humans have changed Earth's atmosphere in dramatic ways over the past two centuries, resulting in global warming The exchange of incoming and outgoing radiation that warms the Earth is often referred to as the greenhouse effect because a greenhouse works in much the same way. Incoming UV radiation easily passes through the glass walls of a greenhouse and is absorbed by the plants and hard surfaces inside. Weaker IR radiation, however, has difficulty passing through the glass walls and is trapped inside, thus warming the greenhouse. This effect lets tropical plants thrive inside a greenhouse, even during a cold winter.

Consequences of global warming

There are two major effects of global warming: the increase of temperature on the earth by about 30 to 50C (5.40 to 90Fahrenheit) by the year 2100 are Rise of sea levels by at least 25 meters (82 feet) by the year 2100. Other consequences are listed below:

• Sea levels are rising due to thermal expansion of the ocean, in addition to melting of land ice.

• Amounts and patterns of precipitation are changing.

• The total annual power of hurricanes has already increased markedly since 1975 because their average intensity and average duration have increased.

• Changes in temperature and precipitation patterns increase the frequency, duration, and intensity of other extreme weather events, such as floods, droughts heat waves, and tornadoes.

• Higher or lower agricultural yields, further glacial retreat, reduced summer stream flows, species extinctions.

• Diseases like malaria are returning into areas where they have been extinguished earlier

Sources: Wikipedia | Time for change

Circle the correct answers.

l. Climate change is the rise in average surface temperatures on Earth.

a. true b. false

2.Climate change observed in the last decades is natural.

a. true b. false

3. Fossil fuels are burnt which releases carbon dioxide and other greenhouse gases into the air.

a. true b. false

4. Greenhouse effects have no impacts on our health.

a. true. b. false

5. Earth's surface has relatively mild, stable temperatures while the others are not.

a. true b. false.

6. UV radiation and IR radiation easily passes through the glass walls of a greenhouse and is trapped inside causing greenhouse effect.

a. true b. false

7. Sea levels are rising because of ice melt and thermal pollution.

a. true. b. false.

8. Global warming causes the increase of temperature on the earth and the rise of sea levels.

a. true. b. false

9. Humans have changed Earth's atmosphere in dramatic ways over the past twenty centuries.

a. true b. false

10. Global warming can cause some diseases like malaria.

a. true b. false

0
Our sun is actually an orange, dwarf star. Although it is not nearly the ........(hot) star known, its surface temperature is about 10,000'F and that of its interior is thought to be in the range of 20,000,000'F. We ........... (common) think of the sun as burning, yet it's too hot to burn and is composed of elemental gases. The sun is 865,000 miles in diameter and has a mass one-third of a million times ..........(great) than the Earth's. Scientists believe that it's two billion years old and,...
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Our sun is actually an orange, dwarf star. Although it is not nearly the ........(hot) star known, its surface temperature is about 10,000'F and that of its interior is thought to be in the range of 20,000,000'F. We ........... (common) think of the sun as burning, yet it's too hot to burn and is composed of elemental gases.
The sun is 865,000 miles in diameter and has a mass one-third of a million times ..........(great) than the Earth's. Scientists believe that it's two billion years old and, instead of cooling, is still getting hotter. Perhaps, within the next two billion years, it will reach a temperature of sufficient intensity to destroy the Earth.
The sun's corona is almost as hot as interior. Solar prominences-tongues of hot gas-leap outward a half million miles from the sun's surface at speeds reaching 250,000 miles an hour. ........... (fortune) , these prominences do not travel the full ninety three million miles to earth, nor are their terrific temperatures transmitted through space. Some of the energy from these ......... (urban) does not reach our atmosphere, however, and is believed to cause changes in weather.Our sun is actually an orange, dwarf star. Although it is not nearly the hottest star known, its surface temperature is about 10,000'F and that of its interior is thought to be in the range of 20,000,000'F. We commonly think of the sun as burning, yet it's too hot to burn and is composed of elemental gases.
The sun is 865,000 miles in diameter and has a mass one-third of a million times greater than the Earth's. Scientists believe that it's two billion years old and, instead of cooling, is still getting hotter. Perhaps, within the next two billion years, it will reach a temperature of sufficient intensity to destroy the Earth.

3
4 tháng 1 2020

Our sun is actually an orange, dwarf star. Although it is not nearly the ....hottest ....(hot) star known, its surface temperature is about 10,000'F and that of its interior is thought to be in the range of 20,000,000'F. We ......commonly ..... (common) think of the sun as burning, yet it's too hot to burn and is composed of elemental gases.
The sun is 865,000 miles in diameter and has a mass one-third of a million times ......greater ....(great) than the Earth's. Scientists believe that it's two billion years old and, instead of cooling, is still getting hotter. Perhaps, within the next two billion years, it will reach a temperature of sufficient intensity to destroy the Earth.
The sun's corona is almost as hot as interior. Solar prominences-tongues of hot gas-leap outward a half million miles from the sun's surface at speeds reaching 250,000 miles an hour. ........Fortunately... (fortune) , these prominences do not travel the full ninety three million miles to earth, nor are their terrific temperatures transmitted through space. Some of the energy from these ..disturbances ....... (urban) does not reach our atmosphere, however, and is believed to cause changes in weather.Our sun is actually an orange, dwarf star. Although it is not nearly the hottest star known, its surface temperature is about 10,000'F and that of its interior is thought to be in the range of 20,000,000'F. We commonly think of the sun as burning, yet it's too hot to burn and is composed of elemental gases.
The sun is 865,000 miles in diameter and has a mass one-third of a million times greater than the Earth's. Scientists believe that it's two billion years old and, instead of cooling, is still getting hotter. Perhaps, within the next two billion years, it will reach a temperature of sufficient intensity to destroy the Earth.

4 tháng 1 2020

Our sun is actually an orange, dwarf star. Although it is not nearly the hottest star known, its surface temperature is about 10,000'F and that of its interior is thought to be in the range of 20,000,000'F. We commonly think of the sun as burning, yet it's too hot to burn and is composed of elemental gases.
The sun is 865,000 miles in diameter and has a mass one-third of a million times greater than the Earth's. Scientists believe that it's two billion years old and, instead of cooling, is still getting hotter. Perhaps, within the next two billion years, it will reach a temperature of sufficient intensity to destroy the Earth.
The sun's corona is almost as hot as interior. Solar prominences-tongues of hot gas-leap outward a half million miles from the sun's surface at speeds reaching 250,000 miles an hour. Fortunately, these prominences do not travel the full ninety three million miles to earth, nor are their terrific temperatures transmitted through space. Some of the energy from these disurbances does not reach our atmosphere, however, and is believed to cause changes in weather.Our sun is actually an orange, dwarf star. Although it is not nearly the hottest star known, its surface temperature is about 10,000'F and that of its interior is thought to be in the range of 20,000,000'F. We commonly think of the sun as burning, yet it's too hot to burn and is composed of elemental gases.
The sun is 865,000 miles in diameter and has a mass one-third of a million times greater than the Earth's. Scientists believe that it's two billion years old and, instead of cooling, is still getting hotter. Perhaps, within the next two billion years, it will reach a temperature of sufficient intensity to destroy the Earth

Read the passage and choose the best answer to each question.Volcanoes have been erupting on the earth for millions of years. More than five hundred of them still erupt today. These are called active volcanoes. Volcanoes are located in belts or chains. They are found where the earth’s crust is weak. The weak spots let the hot rock escape when the volcano erupts.Many volcano belts are mountain ranges along the edges of continents. One belt runs along the western coast of South America up...
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Read the passage and choose the best answer to each question.

Volcanoes have been erupting on the earth for millions of years. More than five hundred of them still erupt today. These are called active volcanoes. Volcanoes are located in belts or chains. They are found where the earth’s crust is weak. The weak spots let the hot rock escape when the volcano erupts.

Many volcano belts are mountain ranges along the edges of continents. One belt runs along the western coast of South America up through the western part of the United States. Other volcanoes are found in ocean basins.

About three-fifths of all active volcanoes in the world are in the Pacific Ocean. Many of these volcanoes erupt under the water. The Hawaiian Islands were built by volcanoes that began erupting under water and finally reached the surface of the ocean.

1. The passage says that about five hundred volcanoes_____.

A. will erupt this year B. are still active C. are located under water D. have been discovered

2. Most of the active volcanoes are located in_____.

A. the Pacific Ocean B. South America C. the Atlantic Ocean D. the western United States

3. Which of the following is NOT true?

A. Volcanoes are found in belts or chains. B. The earth’s crust is weak along mountain ranges. C. Hot rock escapes during volcano eruption. D. Volcanoes can be found in the ocean basins.

4. The Hawaiian Islands were built by volcanoes that_____.

A. began erupting under water B. formed a mountain range under water

C. finally reached the surface of the ocean D. both A and C

5. The best title for this selection may be_____.

A. How the Hawaiian Islands Were Built B. At the Bottom of the Ocean

C. The Earth’s Volcanoes D. Why Volcanoes Erupt

1
1 tháng 5 2020

1. The passage says that about five hundred volcanoes_____.

A. will erupt this year B. are still active C. are located under water D. have been discovered

2. Most of the active volcanoes are located in_____.

A. the Pacific Ocean B. South America C. the Atlan Ocean D. the western United States

3. Which of the following is NOT true?

A. Volcanoes are found in belts or chains. B. The earth’s crust is weak along mountain ranges. C. Hot rock escapes during volcano eruption. D. Volcanoes can be found in the ocean basins.

4. The Hawaiian Islands were built by volcanoes that_____.

A. began erupting under water B. formed a mountain range under water

C. finally reached the surface of the ocean D. both A and C

5. The best title for this selection may be_____.

A. How the Hawaiian Islands Were Built B. At the Bottom of the Ocean

C. The Earth’s Volcanoes D. Why Volcanoes Erupt

A geyser is the result of underground water under the combined conditions of high temperatures and increased pressure beneath the surface of the each. Since temperatue rises approximately one degree F for every sixty feet under the earth’s surface, and pressure increases with depth, water that seeps down in crachs and fissures until it reaches very hot rocks in the earth’s interior becomes heated to a temperatue in excess of 290 degrees F. Because of the gressure, it shoots out of the...
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A geyser is the result of underground water under the combined conditions of high temperatures and increased pressure beneath the surface of the each. Since temperatue rises approximately one degree F for every sixty feet under the earth’s surface, and pressure increases with depth, water that seeps down in crachs and fissures until it reaches very hot rocks in the earth’s interior becomes heated to a temperatue in excess of 290 degrees F. Because of the gressure, it shoots out of the surface in the form of steam and hot water. The result is a geyser.For the most part, geysers are located in three regions of the world : New Zealand, Iceland, and the Yellowstone National Park area of the United States. The most famous geyser in the world is Old Faithful in Yellowstone Park. Old Faithful erupts almost every hour, rising to a height of 125 to 170 feet and expelling more then ten thousand gallons during each eruption1.
1. In order for a geyser to erupt,.................
.A. Hot rocks must rise to the sufface of the earth
B. water must flow underground
C. it must be a warm day
D. the earth must not be rugged or broken
2. Old Faithful is located in.....................
A. New Zeland
B. Iceland
C. the united States
D.England
3. Old Faithful erupts......................
A. every 10 minutes
B. every 60 minutes
C. every 125 minutes
D. every 170 minutes
4. A geyser is...................
A. hot water and steam
B. cracks and fissures
C. hot rocks
D. great pressure
5. As depth increases,......................
.A. pressure increases but temperature does not
B. temperature increases but pressure does not
C. both pressure and temperature increase
D. neither pressure nor temperature increases

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9 tháng 2 2019

A geyser is the result of underground water under the combined conditions of high temperatures and increased pressure beneath the surface of the each. Since temperatue rises approximately one degree F for every sixty feet under the earth’s surface, and pressure increases with depth, water that seeps down in crachs and fissures until it reaches very hot rocks in the earth’s interior becomes heated to a temperatue in excess of 290 degrees F. Because of the gressure, it shoots out of the surface in the form of steam and hot water. The result is a geyser.For the most part, geysers are located in three regions of the world : New Zealand, Iceland, and the Yellowstone National Park area of the United States. The most famous geyser in the world is Old Faithful in Yellowstone Park. Old Faithful erupts almost every hour, rising to a height of 125 to 170 feet and expelling more then ten thousand gallons during each eruption1.
1. In order for a geyser to erupt,.................
.A. Hot rocks must rise to the sufface of the earth
B. water must flow underground
C. it must be a warm day
D. the earth must not be rugged or broken
2. Old Faithful is located in.....................
A. New Zeland
B. Iceland
C. the united States
D.England
3. Old Faithful erupts......................
A. every 10 minutes
B. every 60 minutes
C. every 125 minutes
D. every 170 minutes
4. A geyser is...................
A. hot water and steam
B. cracks and fissures
C. hot rocks
D. great pressure
5. As depth increases,......................
.A. pressure increases but temperature does not
B. temperature increases but pressure does not
C. both pressure and temperature increase
D. neither pressure nor temperature increases

9 tháng 2 2019

A geyser is the result of underground water under the combined conditions of high temperatures and increased pressure beneath the surface of the each. Since temperatue rises approximately one degree F for every sixty feet under the earth’s surface, and pressure increases with depth, water that seeps down in crachs and fissures until it reaches very hot rocks in the earth’s interior becomes heated to a temperatue in excess of 290 degrees F. Because of the gressure, it shoots out of the surface in the form of steam and hot water. The result is a geyser.For the most part, geysers are located in three regions of the world : New Zealand, Iceland, and the Yellowstone National Park area of the United States. The most famous geyser in the world is Old Faithful in Yellowstone Park. Old Faithful erupts almost every hour, rising to a height of 125 to 170 feet and expelling more then ten thousand gallons during each eruption1.
1. In order for a geyser to erupt,.................
.A. Hot rocks must rise to the sufface of the earth
B. water must flow underground
C. it must be a warm day
D. the earth must not be rugged or broken
2. Old Faithful is located in.....................
A. New Zeland
B. Iceland
C. the united States
D.England
3. Old Faithful erupts......................
A. every 10 minutes
B. every 60 minutes
C. every 125 minutes
D. every 170 minutes
4. A geyser is...................
A. hot water and steam
B. cracks and fissures
C. hot rocks
D. great pressure
5. As depth increases,......................
.A. pressure increases but temperature does not
B. temperature increases but pressure does not
C. both pressure and temperature increase
D. neither pressure nor temperature increases