Câu hỏi:
17/06/2026 339Read 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.
Aging is the process of growing old. It occurs eventually in every living thing provided, of course, that an illness or accident does not kill it prematurely. The most familiar outward signs of aging may be seen in old people, such as the graying of the hair and the wrinkling of the skin. Signs of aging in a pet dog or cat include loss of playfulness and energy, a decline in hearing and eyesight, or even a slight graying of the coat. Plants age too, but the signs are much harder to detect.
Most body parts grow bigger and stronger, and function more efficiently during childhood. They reach their peak at the time of maturity, or early adulthood. After that, they begin to decline. Bones, for example, gradually become lighter and more brittle. In the aged, the joints between the bones also become rigid and more inflexible. This can make moving very painful.
All the major organs of the body show signs of aging. The brain, for example, works less efficiently, and even gets smaller in size. Thinking processes of all sorts are slowed down. Old people often have trouble in remembering recent events.
One of the most serious changes of old age occurs in the arteries, the blood vessels that lead from the heart. They become thickened and constricted, allowing less blood to flow to the rest of body. This condition accounts, directly or indirectly, for many of the diseases of the aged. It may, forexample, result in heart attack.
Aging is not a uniform process. Different parts of the body wear out at different rates. There are great differences among people in their rate of aging. Even the cells of the body differ in the way they age. The majority of cells are capable of reproducing themselves many times during the course of a lifetime. Nerve cells and muscle fibers can never be replaced once they wear out.
Gerontologists - scientists who study the process of aging-believe this wearing out of the body is controlled by a built-in biological time-clock. 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
What is the main idea of the last paragraph?
A. Gerontologists have controlled the process of aging
B. Gerontologists are working hard to help people live longer and more healthily
C. Gerontologists are trying to give people an eternal life
D. Gerontologists are now able to slow down the process of aging
Trả lời:
Giải bởi Vietjack
Đáp án B
Theo các thông tin, bài văn cung cấp, ta có:
- "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."
- "This could give man a longer life and a great number of productive years."
Dịch nghĩa:
“Lão hóa là quá trình già đi. Nó xảy ra cuối cùng ở mọi sinh vật sống, tất nhiên là với điều kiện bệnh tật hoặc tai nạn không giết chết chúng trước khi đến tuổi già. Những dấu hiệu lão hóa quen thuộc nhất có thể thấy ở người già, chẳng hạn như tóc bạc và da nhăn. Dấu hiệu lão hóa ở chó mèo cưng bao gồm mất sự vui tươi và năng lượng, suy giảm thính giác và thị lực, hoặc thậm chí là một chút tóc bạc. Cây cối cũng già đi, nhưng dấu hiệu của quá trình này khó phát hiện hơn nhiều.
Hầu hết các bộ phận cơ thể phát triển to hơn và mạnh mẽ hơn, hoạt động hiệu quả hơn trong thời thơ ấu. Chúng đạt đỉnh điểm khi trưởng thành, hoặc vào đầu tuổi trưởng thành. Sau đó, chúng bắt đầu suy yếu dần. Ví dụ, xương dần trở nên nhẹ hơn và dễ gãy hơn. Ở người già, các khớp giữa các xương cũng trở nên cứng và kém linh hoạt hơn. Điều này có thể khiến việc di chuyển trở nên rất đau đớn.
Tất cả các cơ quan chính của cơ thể đều có dấu hiệu lão hóa. Ví dụ, não hoạt động kém hiệu quả hơn và thậm chí có kích thước nhỏ hơn. Các quá trình suy nghĩ mọi thứ đều chậm lại. Người già thường gặp khó khăn trong việc nhớ lại các sự kiện gần đây.
Một trong những thay đổi nghiêm trọng nhất của tuổi già xảy ra ở các động mạch, những mạch máu dẫn từ tim. Chúng trở nên dày hơn và co lại, cho phép ít máu lưu thông đến các phần khác của cơ thể hơn. Tình trạng này là nguyên nhân trực tiếp hoặc gián tiếp của nhiều căn bệnh ở người già. Nó có thể, ví dụ, dẫn đến một cơn đau tim.
Lão hóa không phải là một quá trình đồng đều. Các bộ phận khác nhau của cơ thể hao mòn với các tốc độ khác nhau. Có sự khác biệt lớn giữa các cá nhân về tốc độ lão hóa của họ. Thậm chí các tế bào của cơ thể cũng khác nhau về cách chúng lão hóa. Phần lớn các tế bào có khả năng tự tái tạo nhiều lần trong suốt cuộc đời. Tế bào thần kinh và sợi cơ không bao giờ có thể được thay thế khi chúng bị hao mòn.
Các nhà lão học (gerontologists) - những nhà khoa học nghiên cứu quá trình lão hóa - tin rằng sự hao mòn của cơ thể này được kiểm soát bởi một chiếc "đồng hồ sinh học" đã được tích hợp sẵn. Họ đang cố gắng khám phá cách hoạt động của chiếc đồng hồ này để có thể làm chậm quá trình lão hóa. Điều này có thể giúp con người sống lâu hơn và có nhiều năm làm việc hiệu quả hơn.”
CÂU HỎI HOT CÙNG CHỦ ĐỀ
Câu 1:
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 31 to 35.
NOISE POLLUTION
Noise is more than a mere nuisance. At certain levels and durations of exposure, it can cause physical damage to the eardrum, and (31) ________in temporary or permanent hearing loss. In addition to causing hearing loss, (32) ________noise exposure can also (33) ________blood pressure and pulse rate, cause irritability, anxiety, and mental fatigue, and interfere with sleep, recreation, and personal communication. Noise pollution is, therefore, (34________importance in the workplace and in the community.
Noise effects can be (35) ________by a number of techniques, for example, increasing the distance or blocking the path between the noise source and the recipient, reducing noise level at the source, and protecting recipients with earplugs or earmuffs
Điền vào ô số 35
Câu 2:
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 31 to 35.
NOISE POLLUTION
Noise is more than a mere nuisance. At certain levels and durations of exposure, it can cause physical damage to the eardrum, and (31) ________in temporary or permanent hearing loss. In addition to causing hearing loss, (32) ________noise exposure can also (33) ________blood pressure and pulse rate, cause irritability, anxiety, and mental fatigue, and interfere with sleep, recreation, and personal communication. Noise pollution is, therefore, (34________importance in the workplace and in the community.
Noise effects can be (35) ________by a number of techniques, for example, increasing the distance or blocking the path between the noise source and the recipient, reducing noise level at the source, and protecting recipients with earplugs or earmuffs
Điền vào ô số 34
Câu 3:
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 31 to 35.
NOISE POLLUTION
Noise is more than a mere nuisance. At certain levels and durations of exposure, it can cause physical damage to the eardrum, and (31) ________in temporary or permanent hearing loss. In addition to causing hearing loss, (32) ________noise exposure can also (33) ________blood pressure and pulse rate, cause irritability, anxiety, and mental fatigue, and interfere with sleep, recreation, and personal communication. Noise pollution is, therefore, (34________importance in the workplace and in the community.
Noise effects can be (35) ________by a number of techniques, for example, increasing the distance or blocking the path between the noise source and the recipient, reducing noise level at the source, and protecting recipients with earplugs or earmuffs
Điền vào ô số 32
Câu 4:
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions
The basketball team knew they lost the match. They soon started to blame each other
Câu 5:
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.
As heart disease continues to be the number-one killer in the United States, researchers have become increasingly interested in identifying the potential risk factors that trigger heart attacks. High-fat diets and “life in the fast lane” have long been known to contribute to 5 the high incidence of heart failure. But according to new studies, the list of risk factors may be significantly longer and quite surprising.
Heart failure, for example, appears to have seasonal and temporal 10 patterns. A higher percentage of heart attacks occur in cold weather, and more people experience heart failure on Monday than on any other day of the week. In addition, people are more susceptible to heart attacks in the first few hours after waking. Cardiologists first observed this morning phenomenon
in the mid-1980, and have since 15 discovered a number of possible causes. An early-morning rise in blood pressure, heart rate, and concentration of heart stimulating hormones, plus a reduction of blood flow to the heart, may all contribute to the higher incidence of heart attacks between the hours of 8:00 A.M. and 10:00 A.M.
In other studies, both birthdays and bachelorhood have been implicated as risk factors. Statistics reveal that heart attack rates increase significantly for both females and males in the few days immediately preceding and following their birthdays. And unmarried men are more 25 at risk for heart attacks than their married counterparts. Though stress is thought to be linked in some way to all of the aforementioned risk factors, intense research continues in the hope of further comprehending why and how heart failure is triggered
The word “trigger” as used in paragraph 1 is closest in meaning to which of the following?
Câu 6:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
When his alarm went off, he shut it off and slept for________15 minutes
Câu 7:
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 31 to 35.
NOISE POLLUTION
Noise is more than a mere nuisance. At certain levels and durations of exposure, it can cause physical damage to the eardrum, and (31) ________in temporary or permanent hearing loss. In addition to causing hearing loss, (32) ________noise exposure can also (33) ________blood pressure and pulse rate, cause irritability, anxiety, and mental fatigue, and interfere with sleep, recreation, and personal communication. Noise pollution is, therefore, (34________importance in the workplace and in the community.
Noise effects can be (35) ________by a number of techniques, for example, increasing the distance or blocking the path between the noise source and the recipient, reducing noise level at the source, and protecting recipients with earplugs or earmuffs
Điền vào ô số 31
Câu 8:
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions
The next host for the SEA Games is Laos. It is Laos’ the first time as the host for the biannual- games
Câu 9:
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 31 to 35.
NOISE POLLUTION
Noise is more than a mere nuisance. At certain levels and durations of exposure, it can cause physical damage to the eardrum, and (31) ________in temporary or permanent hearing loss. In addition to causing hearing loss, (32) ________noise exposure can also (33) ________blood pressure and pulse rate, cause irritability, anxiety, and mental fatigue, and interfere with sleep, recreation, and personal communication. Noise pollution is, therefore, (34________importance in the workplace and in the community.
Noise effects can be (35) ________by a number of techniques, for example, increasing the distance or blocking the path between the noise source and the recipient, reducing noise level at the source, and protecting recipients with earplugs or earmuffs
Điền vào ô số 33
Câu 10:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
Dick________moustache, but he doesn’t any more. He shaved it off because his wife didn’t like it
Câu 11:
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.
As heart disease continues to be the number-one killer in the United States, researchers have become increasingly interested in identifying the potential risk factors that trigger heart attacks. High-fat diets and “life in the fast lane” have long been known to contribute to 5 the high incidence of heart failure. But according to new studies, the list of risk factors may be significantly longer and quite surprising.
Heart failure, for example, appears to have seasonal and temporal 10 patterns. A higher percentage of heart attacks occur in cold weather, and more people experience heart failure on Monday than on any other day of the week. In addition, people are more susceptible to heart attacks in the first few hours after waking. Cardiologists first observed this morning phenomenon
in the mid-1980, and have since 15 discovered a number of possible causes. An early-morning rise in blood pressure, heart rate, and concentration of heart stimulating hormones, plus a reduction of blood flow to the heart, may all contribute to the higher incidence of heart attacks between the hours of 8:00 A.M. and 10:00 A.M.
In other studies, both birthdays and bachelorhood have been implicated as risk factors. Statistics reveal that heart attack rates increase significantly for both females and males in the few days immediately preceding and following their birthdays. And unmarried men are more 25 at risk for heart attacks than their married counterparts. Though stress is thought to be linked in some way to all of the aforementioned risk factors, intense research continues in the hope of further comprehending why and how heart failure is triggered
The phrase “susceptible to” in paragraph 2 could best be replaced by ________.
Câu 12:
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.
Aging is the process of growing old. It occurs eventually in every living thing provided, of course, that an illness or accident does not kill it prematurely. The most familiar outward signs of aging may be seen in old people, such as the graying of the hair and the wrinkling of the skin. Signs of aging in a pet dog or cat include loss of playfulness and energy, a decline in hearing and eyesight, or even a slight graying of the coat. Plants age too, but the signs are much harder to detect.
Most body parts grow bigger and stronger, and function more efficiently during childhood. They reach their peak at the time of maturity, or early adulthood. After that, they begin to decline. Bones, for example, gradually become lighter and more brittle. In the aged, the joints between the bones also become rigid and more inflexible. This can make moving very painful.
All the major organs of the body show signs of aging. The brain, for example, works less efficiently, and even gets smaller in size. Thinking processes of all sorts are slowed down. Old people often have trouble in remembering recent events.
One of the most serious changes of old age occurs in the arteries, the blood vessels that lead from the heart. They become thickened and constricted, allowing less blood to flow to the rest of body. This condition accounts, directly or indirectly, for many of the diseases of the aged. It may, forexample, result in heart attack.
Aging is not a uniform process. Different parts of the body wear out at different rates. There are great differences among people in their rate of aging. Even the cells of the body differ in the way they age. The majority of cells are capable of reproducing themselves many times during the course of a lifetime. Nerve cells and muscle fibers can never be replaced once they wear out.
Gerontologists - scientists who study the process of aging-believe this wearing out of the body is controlled by a built-in biological time-clock. 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
According to the passage, which of the following is NOT true?
Câu 13:
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions
“Why I haven’t thought of this before?” Tony said to himself
Câu 14:
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.
As heart disease continues to be the number-one killer in the United States, researchers have become increasingly interested in identifying the potential risk factors that trigger heart attacks. High-fat diets and “life in the fast lane” have long been known to contribute to 5 the high incidence of heart failure. But according to new studies, the list of risk factors may be significantly longer and quite surprising.
Heart failure, for example, appears to have seasonal and temporal 10 patterns. A higher percentage of heart attacks occur in cold weather, and more people experience heart failure on Monday than on any other day of the week. In addition, people are more susceptible to heart attacks in the first few hours after waking. Cardiologists first observed this morning phenomenon
in the mid-1980, and have since 15 discovered a number of possible causes. An early-morning rise in blood pressure, heart rate, and concentration of heart stimulating hormones, plus a reduction of blood flow to the heart, may all contribute to the higher incidence of heart attacks between the hours of 8:00 A.M. and 10:00 A.M.
In other studies, both birthdays and bachelorhood have been implicated as risk factors. Statistics reveal that heart attack rates increase significantly for both females and males in the few days immediately preceding and following their birthdays. And unmarried men are more 25 at risk for heart attacks than their married counterparts. Though stress is thought to be linked in some way to all of the aforementioned risk factors, intense research continues in the hope of further comprehending why and how heart failure is triggered
In paragraph 1, the word “potential” could best be re-placed by which of the following?
Câu 15:
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.
Aging is the process of growing old. It occurs eventually in every living thing provided, of course, that an illness or accident does not kill it prematurely. The most familiar outward signs of aging may be seen in old people, such as the graying of the hair and the wrinkling of the skin. Signs of aging in a pet dog or cat include loss of playfulness and energy, a decline in hearing and eyesight, or even a slight graying of the coat. Plants age too, but the signs are much harder to detect.
Most body parts grow bigger and stronger, and function more efficiently during childhood. They reach their peak at the time of maturity, or early adulthood. After that, they begin to decline. Bones, for example, gradually become lighter and more brittle. In the aged, the joints between the bones also become rigid and more inflexible. This can make moving very painful.
All the major organs of the body show signs of aging. The brain, for example, works less efficiently, and even gets smaller in size. Thinking processes of all sorts are slowed down. Old people often have trouble in remembering recent events.
One of the most serious changes of old age occurs in the arteries, the blood vessels that lead from the heart. They become thickened and constricted, allowing less blood to flow to the rest of body. This condition accounts, directly or indirectly, for many of the diseases of the aged. It may, forexample, result in heart attack.
Aging is not a uniform process. Different parts of the body wear out at different rates. There are great differences among people in their rate of aging. Even the cells of the body differ in the way they age. The majority of cells are capable of reproducing themselves many times during the course of a lifetime. Nerve cells and muscle fibers can never be replaced once they wear out.
Gerontologists - scientists who study the process of aging-believe this wearing out of the body is controlled by a built-in biological time-clock. 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
What is the main idea of the first paragraph?
