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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 35 to 42.Life in the Universe   Exobiology is the study of life that originates from outside of Earth. As yet, of course, no such life forms have been found. Exobiologists, however, have done important work in the theoretical study of where life is most likely to evolve, and what those extrateưestrial life forms might be like.   What sorts of planets...
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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 35 to 42.

Life in the Universe

   Exobiology is the study of life that originates from outside of Earth. As yet, of course, no such life forms have been found. Exobiologists, however, have done important work in the theoretical study of where life is most likely to evolve, and what those extrateưestrial life forms might be like.

   What sorts of planets are most likely to develop life? Most scientists agree that a habitable planet must be terrestrial, or rock-based, with liquid surface water and biogeochemical cycles that somewhat resemble Earth’s. Water is an important solvent involved in many biological processes. Biogeochemical cycles are the continuous movement and transformation of materials in the environment. These cycles include the circulation of elements and nutrients upon which life and the Earth’s climate depend. Since (as far as we know) all life is carbon-based, a stable carbon cycle is especially important.

   The habitable zone is the region around a star in which planets can develop life. Assuming the need for liquid surface water, it follows that most stars around the size of our sun will be able to sustain habitable zones for billions of years. Stars that are larger than the sun are much hotter and bum out more quickly; life there may not have enough time to evolve. Stars that are smaller than the sun have different problem. First of all, planets in their habitable zones will be so close to the star that they will be “tidally locked” – that is one side of the planet will always face the star in perpetual daylight with the other side in the perpetual night. Another possible obstacle to life on smaller stars is that they tend to vary in their luminosity, or brightness, due to flares and “star spots”. The variation can be large enough to have harmful effects on the ecosystem.

   Of course, not all stars of the right size will give rise to life; they also must have terrestrial planets with the right kind of orbits. Most solar systems have more than one planet, which influence each other’s orbits with their own gravity. Therefore, in order to have a stable system with no planets flying out into space, the orbits must be a good distance from one another. Interestingly, the amount of space needed is roughly the width of a star’s habitable zone. This means that for life to evolve, the largest possible number of life-supporting planets in any star’s habitable zone is two.

   Finally, not all planets meeting the above conditions will necessarily develop life. One major threat is large, frequent asteroid and comet impacts, which will wipe out life each time it tries to evolve. The case of Earth teaches that having large gas giants, such as Saturn and Jupiter,.in the outer part of the solar system can help keep a planet safe for life. Due to their strong gravitation, they tend to catch or deflect large objects before they can reach Earth.

 

All of the following are mentioned in the passage as necessary for the development of life except

A. rock 

B. carbon 

C. oxygen 

D. water 

1
19 tháng 6 2018

Đáp án C

Kiến thức: Đọc hiểu

Giải thích:

Tất cả những điều sau đây được đề cập trong đoạn văn để cần thiết cho sự phát triển sự sống, Trừ:

A. đá                   

B. Carbon            

C. khí oxy           

D. nước

Thông tin: Most scientists agree that a habitable planet must be

terrestn rock-based, with liquid surface water ….. Since (as far as we know) all life is carbon-based

Tạm dịch: Hầu hết các nhà khoa học đồng ý rằng một hành tinh sống phải có đá trên mặt, với nước… Như chúng ta biết, tất cả cuộc sống của chúng ta đều dựa vào carbon…

25 tháng 8 2018

Đáp án: C

7 tháng 10 2019

Đáp án: B

22 tháng 4 2019

Đáp án: D

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 36 to 42. It is estimated that by 2050 more than two-thirds of the world's population will live in cities, up from about 54 percent today. While the many benefits of organized and efficient cities are well understood, we need to recognize that this rapid, often unplanned urbanization brings risks of profound social instability, risks to critical...
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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 36 to 42.
 
It is estimated that by 2050 more than two-thirds of the world's population will live in cities, up from about 54 percent today. While the many benefits of organized and efficient cities are well understood, we need to recognize that this rapid, often unplanned urbanization brings risks of profound social instability, risks to critical infrastructure, potential water crises and the potential for devastating spread of disease. These risks can only be further exacerbated as this unprecedented transition from rural to urban areas continues.
How effectively these risks can be addressed will increasingly be determined by how well cities are governed. The increased concentration of people, physical assets, infrastructure and economic activities mean that the risks materializing at the city level will have far greater potential to disrupt society than ever before.
Urbanization is by no means bad by itself. It brings important benefits for economic, cultural and societal development. Well managed cities are both efficient and effective, enabling economies of scale and network effects while reducing the impact on the climate of transportation. As such, an urban model can make economic activity more environmentally-friendly. Further, the proximity and diversity of people can spark innovation and create employment as exchanging ideas breeds new ideas.
But these utopian concepts are threatened by some of the factors driving rapid urbanization. For example, one of the main factors is rural-urban migration, driven by the prospect of greater employment opportunities and the hope of a better life in cities. But rapidly increasing population density can create severe problems, especially if planning efforts are not sufficient to cope with the influx of new inhabitants. The result may, in extreme cases, be widespread poverty. Estimates suggest that 40% of the world's urban expansion is taking place in slums, exacerbating socio-economic disparities and creating unsanitary conditions that facilitate the spread of disease.
The Global Risks 2015 Report looks at four areas that face particularly daunting challenges in the face of rapid and unplanned urbanization: infrastructure, health, climate change, and social instability. In each of these areas we find new risks that can best be managed or, in some cases, transferred through the mechanism of insurance.
Question 36: The word “that" in paragraph 4 refers to __________.
​A. urban expansion ​​B. socio-economic disparities
​C. disease  ​D. unsanitary conditions
Question 37:According to paragraph 3, what is one of the advantages of urbanization?
​A. It minimizes risks for economic, cultural and societal development.
​B. It makes water supply system both efficient and effective.  
​C. Weather and climate in the city will be much improved.
​D. People may come up with new ideas for innovation.
Question 38:Which statement is TRUE, according to the passage?
​A. Urbanization brings important benefits for development as well.
​B. 54% of the world's population will live in cities by 2050.
​C. Risks cannot be addressed effectively no matter how well cities are governed.
​D. Rapidly increasing population density can help solve poverty.
Question 39: The word "addressed" in paragraph 2 is closest in meaning to _________.
​A. aimed at ​B. dealt with ​C. added to ​D. agreed on
Question 40: What can be inferred from the passage?
​A. Poverty may be a foregone conclusion of unplanned urbanization.
​B. Diseases are caused by people migrating to cities.  
​C. Urbanization can solve the problem of environmental pollution in cities.
​D. The increasing number of people in cities can create more employment.
Question 41: Which is the most suitable title for the passage?
​A. The Risks of Rapid Urbanization in Developing Countries
​B. Infrastructure and Economic Activities in Cities
​C. The Global Risks 2015 Report on Developing Urban Areas
​D. Rapid Urbanization Put Cities in Jeopardy
Question 42: The word “spark” in paragraph 3 is closest in meaning to ___________.
​A. need ​B. start ​C. encourage ​D. design

1
17 tháng 6 2021

Question 36: The word “that" in paragraph 4 refers to __________.
​A. urban expansion ​​B. socio-economic disparities
​C. disease  ​D. unsanitary conditions
Question 37:According to paragraph 3, what is one of the advantages of urbanization?
​A. It minimizes risks for economic, cultural and societal development.
​B. It makes water supply system both efficient and effective.  
​C. Weather and climate in the city will be much improved.
​D. People may come up with new ideas for innovation.
Question 38:Which statement is TRUE, according to the passage?
​A. Urbanization brings important benefits for development as well.
​B. 54% of the world's population will live in cities by 2050.
​C. Risks cannot be addressed effectively no matter how well cities are governed.
​D. Rapidly increasing population density can help solve poverty.
Question 39: The word "addressed" in paragraph 2 is closest in meaning to _________.
​A. aimed at ​B. dealt with ​C. added to ​D. agreed on
Question 40: What can be inferred from the passage?
​A. Poverty may be a foregone conclusion of unplanned urbanization.
​B. Diseases are caused by people migrating to cities.  
​C. Urbanization can solve the problem of environmental pollution in cities.
​D. The increasing number of people in cities can create more employment.
Question 41: Which is the most suitable title for the passage?
​A. The Risks of Rapid Urbanization in Developing Countries
​B. Infrastructure and Economic Activities in Cities
​C. The Global Risks 2015 Report on Developing Urban Areas
​D. Rapid Urbanization Put Cities in Jeopardy
Question 42: The word “spark” in paragraph 3 is closest in meaning to ___________.
​A. need ​B. start ​C. encourage ​D. design

17 tháng 8 2018

Đáp án B

Kiến thức: Đọc hiểu

Giải thích:

Ý chính của đoạn cuối cùng là gì?

  A. Các nhà khoa học nghiên cứu về lão hóa đã kiểm soát quá trình lão hóa.

  B. Các nhà khoa học nghiên cứu về lão hóa đang làm việc chăm chỉ để giúp mọi người sống lâu hơn và khỏe mạnh hơn.

  C. Các nhà khoa học nghiên cứu về lão hóa đang cố gắng mang lại cho con người một cuộc sống vĩnh cửu.

  D. Các nhà khoa học nghiên cứu về lão hóa hiện có thể làm chậm quá trình lão hóa.

Thông tin: They are trying to discover how this clock works so that they can slow down the process. This could give man a longer life and a great number of productive years.

Tạm dịch: Họ đang nỗ lực tìm ra cách mà chiếc đồng hồ này hoạt động để có thể làm chậm đi quá trình này. Điều này có thể giúp cho con người sống lâu hơn và có được những năm tháng đóng góp nhiều hơn. 

26 tháng 9 2019

Đáp án: D

Giải thích: Mấu chốt của câu này là các em phải đọc hết đoạn cuối để suy ra cái mà tác giả muốn hướng tới: Con người phải đối mặt với sự lựa chọn khó khăn: sự sống của mình hay cứu lấy động vật.

11 tháng 3 2018

Đáp án A.

Key words: chorus, closest meaning.

Clue: “often sung by a group, sometimes with a leader who sings a line or two alone and a chorus that sings the refrain”: thường được hát theo nhóm, đôi khi một nhạc trưởng sẽ hát một hai câu và một đoạn điệp khúc.

Ta thấy sau đại từ quan hệ that là động từ sings chia ở số ít → that là đại từ thay thế cho danh từ chỉ người. Từ chorus có nghĩa là một nhóm người hát đồng ca hoặc đoạn điệp khúc trong một bài hát → trong trường hợp này chorus gần nghĩa nhất với a group of singers that sing together. Đáp án đúng phải là A.

19 tháng 3 2018

Đáp án A.

Key words: chorus, closest meaning.

Clue: “often sung by a group, sometimes with a leader who sings a line or two alone and a chorus that sings the refrain”: thường được hát theo nhóm, đôi khi một nhạc trưởng sẽ hát một hai câu và một đoạn điệp khúc.

Ta thấy sau đại từ quan hệ that là động từ sings chia ở số ít → that là đại từ thay thế cho danh từ chỉ người. Từ chorus có nghĩa là một nhóm người hát đồng ca hoặc đoạn điệp khúc trong một bài hát → trong trường hợp này chorus gần nghĩa nhất với a group of singers that sing together. Đáp án đúng phải là A.

12 tháng 10 2018

Đáp án A.

Key words: chorus, closest meaning.

Clue: “often sung by a group, sometimes with a leader who sings a line or two alone and a chorus that sings the refrain”: thường được hát theo nhóm, đôi khi một nhạc trưởng sẽ hát một hai câu và một đoạn điệp khúc.

Ta thấy sau đại từ quan hệ that là động từ sings chia ở số ít → that là đại từ thay thế cho danh từ chỉ người. Từ chorus có nghĩa là một nhóm người hát đồng ca hoặc đoạn điệp khúc trong một bài hát → trong trường hợp này chorus gần nghĩa nhất với a group of singers that sing together. Đáp án đúng phải là A.

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   22  to  26A.   Read the passage carefully, then choose the correct answer.The ruined temples of Angkor are perhaps one of the mast impressive Seven Wonders of the World. Located in modern day Cambodia near Lake TonIe Sap, the largest freshwater lake in Asia, Angkor was the seat of power for the Khmer Empire from the ninth to the...
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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   22  to  26

A.   Read the passage carefully, then choose the correct answer.

The ruined temples of Angkor are perhaps one of the mast impressive Seven Wonders of the World. Located in modern day Cambodia near Lake TonIe Sap, the largest freshwater lake in Asia, Angkor was the seat of power for the Khmer Empire from the ninth to the fifteenth century. The ruins of Angkor are documented as same .of the mast impressive ones in the world, rivaling the pyramids of Giza in Egypt. Why this mighty civilization died out is a question that archeologists are now only beginning to ponder. The answer, it turns out, may be linked with the availability of fresh water.

One possible explanation far the downfall of the Khmer Empire has to do with the inhabitants' irrigation system. The temple and palaces of Angkor were constructed around a series of artificial reservoirs and canals which were annually flooded to capacity by the Mekong River. Once filled, they were used to irrigate the surrounding rice patties and farmland during the course of the year. Farmers were completely dependent upon the water for their crucial rice crop. Without consistent irrigation, the farmers would have been unable to maintain functional crop production.

Scientists speculate that toward the end of the Khmer Empire the hydraulic systems of the reservoirs and canals broke down. The construction of hundreds of sandstone temples and palaces required an enormous amount of physical labor. In addition, as the capital of the Khmer Empire, Angkor contained upwards of one hundred thousand people who resided in and around Angkor. In order to feed so many people, the local farmers were driven to grow food quicker and more efficiently. After centuries of continual use, the irrigation system was pushed beyond its capacity. Soil erosion, nutrient depletion, and the loss of water led to decrease in the food supply. With less food available, the people of Angkor slowly began to migrate to other parts of Cambodia thus leaving the marvelous city of Angkor to be swallowed by the jungle. Therefore, it is speculated that the Khmer Empire may have fallen victim to its own decrepit infrastructure.

22. What is the passage mainly about?

A. Modern day agricultural procedures in Cambodia.

B. A possible explanation for the, decline of a civilization.

C. The essential role water plays in farming.

D. Religious temples of the ancient Khmer Empire.

23. The passage preceding the passage most likely discusses ______.

A. architecture of ancient Asian civilization

B. religious practices of the people of Angkor

C. the form of government practiced by the Khmer Empire

D. the other six wonders of the world

24. According to the passage, Lake Tonle Sap in Cambodia ______.

A. is an enormous fresh body of water in Asia

B. was unable to supply enough fish for the people of Angkor

C. became polluted due to a population explosion

D. is one of the Seven Wonders of the World

25. Why does the author mention the hydraulic systems of the reservoirs?

A. They supplied irrigation from the Indian Ocean.

B. They became non-functional due to overuse.

C. They were destroyed by nearby warrior tribes.

D. They helped transport the sandstones for constructing temples.

26. It can be inferred from the passage that the inhabitants of the Khmer Empire ______.

A. were intentionally starved by the farmers

B. lost their food source due to excess rainfall

C. supplemented their diets with 'meat hunted in the nearby jungles

D. depended upon rice as their main source of food

27. All the following are mentioned as events that can affect food supply EXCEPT.

A. erosion of soil                                       B. contamination of soil

C. reduction of nutrients                            D. loss of water supply

 

2
16 tháng 4 2022

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   22  to  26

A.   Read the passage carefully, then choose the correct answer.

The ruined temples of Angkor are perhaps one of the mast impressive Seven Wonders of the World. Located in modern day Cambodia near Lake TonIe Sap, the largest freshwater lake in Asia, Angkor was the seat of power for the Khmer Empire from the ninth to the fifteenth century. The ruins of Angkor are documented as same .of the mast impressive ones in the world, rivaling the pyramids of Giza in Egypt. Why this mighty civilization died out is a question that archeologists are now only beginning to ponder. The answer, it turns out, may be linked with the availability of fresh water.

One possible explanation far the downfall of the Khmer Empire has to do with the inhabitants' irrigation system. The temple and palaces of Angkor were constructed around a series of artificial reservoirs and canals which were annually flooded to capacity by the Mekong River. Once filled, they were used to irrigate the surrounding rice patties and farmland during the course of the year. Farmers were completely dependent upon the water for their crucial rice crop. Without consistent irrigation, the farmers would have been unable to maintain functional crop production.

Scientists speculate that toward the end of the Khmer Empire the hydraulic systems of the reservoirs and canals broke down. The construction of hundreds of sandstone temples and palaces required an enormous amount of physical labor. In addition, as the capital of the Khmer Empire, Angkor contained upwards of one hundred thousand people who resided in and around Angkor. In order to feed so many people, the local farmers were driven to grow food quicker and more efficiently. After centuries of continual use, the irrigation system was pushed beyond its capacity. Soil erosion, nutrient depletion, and the loss of water led to decrease in the food supply. With less food available, the people of Angkor slowly began to migrate to other parts of Cambodia thus leaving the marvelous city of Angkor to be swallowed by the jungle. Therefore, it is speculated that the Khmer Empire may have fallen victim to its own decrepit infrastructure.

22. What is the passage mainly about?

A. Modern day agricultural procedures in Cambodia.

B. A possible explanation for the, decline of a civilization.

C. The essential role water plays in farming.

D. Religious temples of the ancient Khmer Empire.

23. The passage preceding the passage most likely discusses ______.

A. architecture of ancient Asian civilization

B. religious practices of the people of Angkor

C. the form of government practiced by the Khmer Empire

D. the other six wonders of the world

24. According to the passage, Lake Tonle Sap in Cambodia ______.

A. is an enormous fresh body of water in Asia

B. was unable to supply enough fish for the people of Angkor

C. became polluted due to a population explosion

D. is one of the Seven Wonders of the World

25. Why does the author mention the hydraulic systems of the reservoirs?

A. They supplied irrigation from the Indian Ocean.

B. They became non-functional due to overuse.

C. They were destroyed by nearby warrior tribes.

D. They helped transport the sandstones for constructing temples.

26. It can be inferred from the passage that the inhabitants of the Khmer Empire ______.

A. were intentionally starved by the farmers

B. lost their food source due to excess rainfall

C. supplemented their diets with 'meat hunted in the nearby jungles

D. depended upon rice as their main source of food

27. All the following are mentioned as events that can affect food supply EXCEPT.

A. erosion of soil                                       B. contamination of soil

C. reduction of nutrients                            D. loss of water supply

16 tháng 4 2022

22-b 23-d 24-a 25-b 26-d 27-b