VII. Read the text quickly and complete the information in the table.

GREAT LAKES OF THE WORLD

The oldest lake in the world Lake Baikal is 25-30 million years old-the oldest lake in the world. It holds 20 percent of the planet's surface freshwater. It is 650km long and nearly 2km deep.

Lake Baikal is in eastern Shiberia where the winters are very cold. Temperatures average minus 20 degrees. The lake freezes for five months or more of the year. The ice is 1,2m thick, and trucks drive across the lake when it freezes.

The lake has more than 1,200 species of animals and 1,000 species of plants.

It is home to the world's only freshwater seal, the nerpa. There are approximately 50,000 nerpas in the lake. Nerpas can dive down 300m to catch fish!

Giant Lakes

The world's largest lake in the Caspian Sea in south-west Asia. It is 370,000 sq km. It is salt water and not freshwater. The world's largest freshwater lake is Lake Superior, one of the Great Lakes of North America. These lakes are the biggest mass of freshwater in the world.

Stories about lakes

Scotland's Loch Ness is famous for its 'monster', and is only 230m deep. But Lake Nicaragua in Central America is home to the dangerous bull shark, which is more than 3m long. The sharks swim up and down the San Juan River into the Caribbean Sea.

Read the text again and answer the questions:

6. How old is Lake Baikal?

7. How long is Lake Baikal?

8. What happens to Lake Baikal in the winter?

9. What is the name of the seal that lives in Lake Baikal?

10. Why does the seal dive deep into the lake?

11. Is Lake Superior freshwater ỏ salt water?

12. What is Loch Ness famous for?

1. The square in Hoi An is smaller than the square in Hanoi.

->The square in Hanoi …………………………………

2. There are many shops here, so the streets are busy all day.

->Because there ………………………………………………………

3. No lake in the world is deeper than Lake Baikal.

->Lake Baikal ………………………………………………….

4. There is an art gallery opposite my school gate.

->The art gallery ……………………………………………….

5. My brother never goes to school late.

->My brother always ………………………………………….

😊😊😊😊😊😊😊😊😊 giúp iem zới ạ

1. The square in Hoi An is smaller than the square in Hanoi.

->The square in Hanoi …………………………………

2. There are many shops here, so the streets are busy all day.

->Because there ………………………………………………………

3. No lake in the world is deeper than Lake Baikal.

->Lake Baikal ………………………………………………….

4. There is an art gallery opposite my school gate.

->The art gallery ……………………………………………….

5. My brother never goes to school late.

->My brother always ………………………………………….

😊😊😊😊😊😊😊😊😊 giúp iem zới ạ

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.

A rather surprising geographical feature of Antarctica is that a huge freshwater lake, one of the world’s largest and deepest, lies hidden there under four kilometers of ice. Now known as Lake Vostok, this huge body of water is located under the ice block that comprises Antarctica. The lake is able to exist in its unfrozen state beneath this block of ice because its waters are warmed by geothermal heat from the earth’s core. The thick glacier above Lake Vostok actually insulates it from the frigid temperatures on the surface.  

The lake was first discovered in the 1970s while a research team was conducting an aerial survey of the area. Radio waves from the survey equipment penetrated the ice and revealed a body of water of indeterminate size. It was not until much more recently that data collected by satellite made scientists aware of the tremendous size of the lake; the satellite-borne radar detected an extremely flat region where the ice remains level because it is floating on the water of the lake.  

The discovery of such a huge freshwater lake trapped under Antarctica is of interest to the scientific community because of the potential that the lake contains ancient microbes that have survived for thousands of years, unaffected by factors such as nuclear fallout and elevated ultraviolet light that have affected organisms in more exposed areas. The downside of the discovery, however, lies in the difficulty of conducting research on the lake in such a harsh climate and in the problems associated with obtaining uncontaminated samples from the lake without actually exposing the lake to contamination. Scientists are looking for possible ways to accomplish this.

The word “hidden” in paragraph 1 is closest in meaning to ______.

A. undrinkable   

B. untouched   

C. unexploitable   

D. undiscovered    

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.

A rather surprising geographical feature of Antarctica is that a huge freshwater lake, one of the world’s largest and deepest, lies hidden there under four kilometers of ice. Now known as Lake Vostok, this huge body of water is located under the ice block that comprises Antarctica. The lake is able to exist in its unfrozen state beneath this block of ice because its waters are warmed by geothermal heat from the earth’s core. The thick glacier above Lake Vostok actually insulates it from the frigid temperatures on the surface.  

The lake was first discovered in the 1970s while a research team was conducting an aerial survey of the area. Radio waves from the survey equipment penetrated the ice and revealed a body of water of indeterminate size. It was not until much more recently that data collected by satellite made scientists aware of the tremendous size of the lake; the satellite-borne radar detected an extremely flat region where the ice remains level because it is floating on the water of the lake.  

The discovery of such a huge freshwater lake trapped under Antarctica is of interest to the scientific community because of the potential that the lake contains ancient microbes that have survived for thousands of years, unaffected by factors such as nuclear fallout and elevated ultraviolet light that have affected organisms in more exposed areas. The downside of the discovery, however, lies in the difficulty of conducting research on the lake in such a harsh climate and in the problems associated with obtaining uncontaminated samples from the lake without actually exposing the lake to contamination. Scientists are looking for possible ways to accomplish this.

Which of the following is closest in meaning to “frigid” in paragraph 1?

A. extremely cold   

B. easily broken   

C. quite harsh   

D. lukewarm  

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 28 to 34.

  A rather surprising geographical feature of Antarctica is that a huge freshwater lake, one of the world's largest and deepest, lies hidden there under four kilometers of ice. Now known as Lake Vostok, this huge body of water is located under the ice block that comprises Antarctica. The lake is able to exist in its unfrozen state beneath this block of ice because its waters are warmed by geothermal heat from the earth's core. The thick glacier above Lake Vostok actually insulates it from the frigid temperatures on the surface.

  The lake was first discovered in the 1970s while a research team was conducting an aerial survey of the area. Radio waves from the survey equipment penetrated the ice and revealed a body of water of indeterminate size. It was not until much more recently that data collected by satellite made scientists aware of the tremendous size of the lake; the satellite-borne radar detected an extremely flat region where the ice remains level because it is floating on the water of the lake.

          The discovery of such a huge freshwater lake trapped under Antarctica is of interest to the scientific community because of the potential that the lake contains ancient microbes that have survived for thousands upon thousands of years, unaffected by factors such as nuclear fallout and elevated ultraviolet light that have affected organisms in more exposed areas. The downside of the discovery, however, lies in the difficulty of conducting research on the lake in such a harsh climate and in the problems associated with obtaining uncontaminated samples from the lake without actually exposing the lake to contamination. Scientists are looking for possible ways to accomplish this.

Lake Vostok is potentially important to scientists because it ________.

A. can be studied using radio waves

B. may contain uncontaminated microbes

C. may have elevated levels of ultraviolet light

D. has already been contaminated

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 28 to 34.

  A rather surprising geographical feature of Antarctica is that a huge freshwater lake, one of the world's largest and deepest, lies hidden there under four kilometers of ice. Now known as Lake Vostok, this huge body of water is located under the ice block that comprises Antarctica. The lake is able to exist in its unfrozen state beneath this block of ice because its waters are warmed by geothermal heat from the earth's core. The thick glacier above Lake Vostok actually insulates it from the frigid temperatures on the surface.

  The lake was first discovered in the 1970s while a research team was conducting an aerial survey of the area. Radio waves from the survey equipment penetrated the ice and revealed a body of water of indeterminate size. It was not until much more recently that data collected by satellite made scientists aware of the tremendous size of the lake; the satellite-borne radar detected an extremely flat region where the ice remains level because it is floating on the water of the lake.

          The discovery of such a huge freshwater lake trapped under Antarctica is of interest to the scientific community because of the potential that the lake contains ancient microbes that have survived for thousands upon thousands of years, unaffected by factors such as nuclear fallout and elevated ultraviolet light that have affected organisms in more exposed areas. The downside of the discovery, however, lies in the difficulty of conducting research on the lake in such a harsh climate and in the problems associated with obtaining uncontaminated samples from the lake without actually exposing the lake to contamination. Scientists are looking for possible ways to accomplish this.

What is true of Lake Vostok?

A. It is completely frozen.

B. It is a saltwater lake

C. It is beneath a thick slab of ice.

D. It is heated by the sun.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.

A rather surprising geographical feature of Antarctica is that a huge freshwater lake, one of the world’s largest and deepest, lies hidden there under four kilometers of ice. Now known as Lake Vostok, this huge body of water is located under the ice block that comprises Antarctica. The lake is able to exist in its unfrozen state beneath this block of ice because its waters are warmed by geothermal heat from the earth’s core. The thick glacier above Lake Vostok actually insulates it from the frigid temperatures on the surface.  

The lake was first discovered in the 1970s while a research team was conducting an aerial survey of the area. Radio waves from the survey equipment penetrated the ice and revealed a body of water of indeterminate size. It was not until much more recently that data collected by satellite made scientists aware of the tremendous size of the lake; the satellite-borne radar detected an extremely flat region where the ice remains level because it is floating on the water of the lake.  

The discovery of such a huge freshwater lake trapped under Antarctica is of interest to the scientific community because of the potential that the lake contains ancient microbes that have survived for thousands of years, unaffected by factors such as nuclear fallout and elevated ultraviolet light that have affected organisms in more exposed areas. The downside of the discovery, however, lies in the difficulty of conducting research on the lake in such a harsh climate and in the problems associated with obtaining uncontaminated samples from the lake without actually exposing the lake to contamination. Scientists are looking for possible ways to accomplish this.

What is true of Lake Vostok?

A. It is completely frozen

B. It is saltwater lake

C. It is beneath a thick slab of ice

D. It is heated by the sun