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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 38 to 42. (1) Just as optical fibers have transformed communication, they are also revolutionizing medicine. These ultra- thin, flexible fibers have opened a window into the living tissues of the body. By inserting optical fibers through natural openings or small incisions and threading them along the body's established pathways, physicians can look into...
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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 38 to 42.

(1) Just as optical fibers have transformed communication, they are also revolutionizing medicine. These ultra- thin, flexible fibers have opened a window into the living tissues of the body. By inserting optical fibers through natural openings or small incisions and threading them along the body's established pathways, physicians can look into the lungs, intestines, heart and other areas that were formerly inaccessible to them.

(2) The basic fiber-optics system is called fiberscope, which consists of two bundles of fibers. One, the illuminating bundle, carries light to the tissues. Is is coupled to a high-intensity light source. Light enters the cores of the high-purity silicon glass and travels along the fibers. A lens at the end of the bundle collects the light and focuses it into the other bundle, the imaging bundle. Each fiber in the bundle transmits only a tiny fraction of the total image. The reconstructed image can be viewed through an eyepiece or displayed on a television screen. During the last five years, improved methods of fabricating optical fibers have led to a reduction in fiberscope diameter and an increase in the number of fibers, which in turn has increased resolution.

(3) Optical fibers can also be used to deliver laser light. By use of laser beams, physicians can perform surgery inside the body, sometimes eliminating the need for invasive procedures in which healthy tissue must be cut through to reach the site of disease. Many of these procedures do not require anesthesia and can be performed in a physician's office. These techniques have reduced the risk and the cost of medical care. 

Which of the following is closest in meaning to the word “cores” in paragraph 2?

A. tips        

B. centers    

C. clusters   

D. lines

1
9 tháng 6 2018

Đáp án B

Core (n) = center (n): trung tâm, phần lõi, nòng cốt, hạt nhân

A: Tip (n): chóp, tiền boa

C: Cluster (n): đám, bụi
D: Line (n): dòng, đường kẻ

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.

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

25 tháng 8 2018

Đáp án: C

7 tháng 10 2019

Đáp án: B

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 38 to 42. (1) Just as optical fibers have transformed communication, they are also revolutionizing medicine. These ultra- thin, flexible fibers have opened a window into the living tissues of the body. By inserting optical fibers through natural openings or small incisions and threading them along the body's established pathways, physicians can look into...
Đọc tiếp

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 38 to 42.

(1) Just as optical fibers have transformed communication, they are also revolutionizing medicine. These ultra- thin, flexible fibers have opened a window into the living tissues of the body. By inserting optical fibers through natural openings or small incisions and threading them along the body's established pathways, physicians can look into the lungs, intestines, heart and other areas that were formerly inaccessible to them.

(2) The basic fiber-optics system is called fiberscope, which consists of two bundles of fibers. One, the illuminating bundle, carries light to the tissues. Is is coupled to a high-intensity light source. Light enters the cores of the high-purity silicon glass and travels along the fibers. A lens at the end of the bundle collects the light and focuses it into the other bundle, the imaging bundle. Each fiber in the bundle transmits only a tiny fraction of the total image. The reconstructed image can be viewed through an eyepiece or displayed on a television screen. During the last five years, improved methods of fabricating optical fibers have led to a reduction in fiberscope diameter and an increase in the number of fibers, which in turn has increased resolution.

(3) Optical fibers can also be used to deliver laser light. By use of laser beams, physicians can perform surgery inside the body, sometimes eliminating the need for invasive procedures in which healthy tissue must be cut through to reach the site of disease. Many of these procedures do not require anesthesia and can be performed in a physician's office. These techniques have reduced the risk and the cost of medical care. 

What is the main topic of the passage?

A. A revolution in communication.  

B. The invention of optical fibers.

C. New surgical techniques.    

D. The roles of optical fibers in medicine.

1
21 tháng 11 2018

Đáp án D

A. Sự phát triển trong ngành truyền thông

B. Sự phát minh ra cáp quang

C. Công nghệ phẫu thuật mới

D. Vai trò của sợi quang trong y học
Câu đầu tiên đã nói lên chủ đề của toàn bài: “Just as optical fibers have transformed communication, they are also revolutionizing medicine.” (Chúng cải tiến y học). Những câu tiếp theo giải thích rõ vai trò của chúng: “…have open a window into the living tissiues of the body”, “By inserting optical fibers…, physicians can look into the lungs, intestines, heart and other areas”, “used to deliver laser light”, “These techniques have reduced the risk and the cost of medical care.” …=> 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 Stress isn’t just a problem for adults. Young people, however, are also suffering from stress with different causes. Below are some factors that contribute to teenagers’ unhealthy levels of stress. School Pressure:  Teenagers often feel stressed because of studying. Students may be under pressure to complete daily homework, finish projects and study for...
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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 

Stress isn’t just a problem for adults. Young people, however, are also suffering from stress with different causes. Below are some factors that contribute to teenagers’ unhealthy levels of stress. 

School Pressure:  Teenagers often feel stressed because of studying. Students may be under pressure to complete daily homework, finish projects and study for exams. In addition, teens may also want to participate in extracurricular activities, such as sports and clubs. The added pastimes may contribute to teenagers’ stress and anxiety if the activities are competitive and students have no relaxation time.

Peer Pressure:  Although teenagers may have a group of close friends, their peers may force them to hang out instead of studying and that goes against their family rules. Peer pressure, bullying at school may affect teenagers’ studying, and lead them to feel more stressful and frustrated. 

Family Problems:  Teenagers can also feel tense at home because of family pressure and problems. Arguments with brothers or sisters, disagreements with parents over rules and family expectations may also cause teenagers’ stress.

 

According to the writer, “School Pressure” may happen when _______

 

 

 A.

teenagers want to hang out with friends.

 B.

teenagers argue with members in their family.

 C.

teenagers don’t follow family rules. 

 D.

teenagers have to complete daily homework.

29

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 

Stress isn’t just a problem for adults. Young people, however, are also suffering from stress with different causes. Below are some factors that contribute to teenagers’ unhealthy levels of stress. 

School Pressure:  Teenagers often feel stressed because of studying. Students may be under pressure to complete daily homework, finish projects and study for exams. In addition, teens may also want to participate in extracurricular activities, such as sports and clubs. The added pastimes may contribute to teenagers’ stress and anxiety if the activities are competitive and students have no relaxation time.

Peer Pressure:  Although teenagers may have a group of close friends, their peers may force them to hang out instead of studying and that goes against their family rules. Peer pressure, bullying at school may affect teenagers’ studying, and lead them to feel more stressful and frustrated. 

Family Problems:  Teenagers can also feel tense at home because of family pressure and problems. Arguments with brothers or sisters, disagreements with parents over rules and family expectations may also cause teenagers’ stress.

Which statement is NOT TRUE?

 

 A.

Bullying at school can affect teenagers’ studying.

 B.

Family expectations may lead to teenagers’ stress.

 C.

Stress is only the problem for adults. 

 D.

Students may be under pressure when joining competitive activities.   

1
28 tháng 10 2021

According to the writer, “School Pressure” may happen when _______

 

 

 A.

teenagers want to hang out with friends.

 B.

teenagers argue with members in their family.

 C.

teenagers don’t follow family rules. 

 D.

teenagers have to complete daily homework.

Which statement is NOT TRUE?

 

 A.

Bullying at school can affect teenagers’ studying.

 B.

Family expectations may lead to teenagers’ stress.

 C.

Stress is only the problem for adults. 

 D.

Students may be under pressure when joining competitive activities.   

19 tháng 4 2017

Đáp án: D

Giải thích: Ở đoạn 4, tác giả nêu ra 3 điều kiện để tiếng lóng được tạo ra, trong đó không có điều kiện nêu ở câu 4 là một số lượng lớn nhà ngôn ngữ học.

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. 

4 tháng 8 2017

Đáp án: C

Giải thích: Dựa vào dòng 8 và dòng 9 của đoạn 2 có thể suy ra con người sử dụng non – native species để có lợi cho bản thân, tạo ra những nhân tố gây ô nhiễm môi trường.

5 tháng 10 2017

Đáp án: C

Giải thích: Dẫn chứng nằm ở 2 dòng cuối của đoạn 1.