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Câu hỏi:

30/06/2024 379

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

Dark matter in the universe is believed by some scientists to be a substance that is not readily observable because it does not directly refract light or energy. Its existence can only be deduced because of the effect that it has on surrounding matter. In fact, some members of the scientific community have argued that dark matter does not actually exist. Others, however, believe in its existence, in part because the scientific community does not have a complete understanding of gravita science. On the other hand, some would argue that it is the understanding of gravitational science that leads most scientists to believe in the existence of dark matter, because without dark matter, there are many cosmological phenomena that are difficult to explain. 

For example, dark matter in the universe may have a peculiar effect on the Milky Way galaxy. Some scientists believe that the interaction between dark matter and other smaller, nearby galaxies is causing the Milky Way galaxy to take on a warped profile. It has been asserted that not only does dark matter exist, it may also be responsible for the Milky Way’s unusual shape. The interaction referenced involves two smaller galaxies near the Milky Way, called Magellanic clouds, moving through an enormous amount of dark matter, which, in effect, enhances the gravitational pull that the two Magellanic clouds could have on the Milky Way and other surrounding bodies. Without the existence of the dark matter, the Magellanic clouds would not have sufficient mass to have such a strong effect on the bend of the Milky Way galaxy. 

The strongest evidence for the validity of this hypothesis rests in Newtonian physics, and the hypothesis that anything with mass will exert a gravitational pull. The Milky Way and other galaxies with peculiar warped shapes are being molded by a gravitational force. However, there is nothing readily observable with sufficient mass that could cause such a high level of distortion via gravitational pull in the vicinity of the Milky Way. Therefore, something that is not easily observed must be exerting the necessary force to create the warped shape of the galaxy. 

Aaron Romanowsky and several colleagues have questioned the effect that dark matter might have on galaxies. They point to the existence of several elliptical galaxies surrounded by very little dark matter as evidence that dark matter is not, in fact, the cause of the warped galaxies. While they do not claim that their findings should be interpreted to conclude that dark matter does not exist, they apparently believe that the results of their studies cast doubt on some of the conventional theories of galaxy formation and manipulation. 

Several models constructed by researchers from the University of California at Berkeley, however, point to the idea that dark matter is the most likely explanation for the distorted shape of the Milky Way and other galaxies. Using computer models, they have mapped the likely interactions between certain galaxies and the surrounding dark matter, and those models have shown not only the possibility that dark matter is responsible for the warped shape of the Milky Way, but that the relationship between the dark matter and the Magellanic clouds is dynamic; the movement of the clouds through the dark matter seems to create a wake that enhances their gravitational influence on the Milky Way. 

The passage states that some members of the scientific community are reluctant to believe in the existence of dark matter because:

A. no one understands how to apply gravitational science.

B. dark matter has little effect on surrounding matter.

C. dark matter cannot be directly observed.

Đáp án chính xác

D. there is absolutely no evidence for the existence of dark matter.

Trả lời:

verified Giải bởi Vietjack

Kiến thức: Đọc hiểu 

Giải thích: 

Đoạn văn nói rằng một số thành viên của cộng đồng khoa học không muốn tin vào sự tồn tại của vật chất tối vì: 

A. không ai hiểu làm thế nào để áp dụng khoa học hấp dẫn. 

B. vật chất tối ít ảnh hưởng đến vật chất xung quanh. 

C. vật chất tối không thể được quan sát trực tiếp. 

D. hoàn toàn không có bằng chứng cho sự tồn tại của vật chất tối. 

Thông tin: Dark matter in the universe is believed by some scientists to be a substance that is not readily observable because it does not directly refract light or energy. Its existence can only be deduced because of the effect that it has on surrounding matter. In fact, some members of the scientific community have argued that dark matter does not actually exist. 

Tạm dịch: Vật chất tối trong vũ trụ được một số nhà khoa học tin là một chất không dễ quan sát vì nó không trực tiếp khúc xạ ánh sáng hay năng lượng. Sự tồn tại của nó chỉ có thể được suy luận vì ảnh hưởng của nó đối với vật chất xung quanh. Trên thực tế, một số thành viên của cộng đồng khoa học đã lập luận rằng vật chất tối không thực sự tồn tại. 

Chọn C

Dịch bài đọc: 

Vật chất tối trong vũ trụ được một số nhà khoa học tin là một chất không dễ quan sát vì nó không trực tiếp khúc xạ ánh sáng hay năng lượng. Sự tồn tại của nó chỉ có thể được suy luận vì ảnh hưởng của nó đối với vật chất xung quanh. Trên thực tế, một số thành viên của cộng đồng khoa học đã lập luận rằng vật chất tối không thực sự tồn tại. Tuy nhiên, những người khác tin vào sự tồn tại của nó, một phần vì cộng đồng khoa học không có sự hiểu biết đầy đủ về khoa học hấp dẫn. Mặt khác, một số người sẽ lập luận rằng chính sự hiểu biết về khoa học hấp dẫn khiến hầu hết các nhà khoa học tin vào sự tồn tại của vật chất tối, bởi vì không có vật chất tối, có rất nhiều hiện tượng vũ trụ rất khó giải thích. 

Ví dụ, vật chất tối trong vũ trụ có thể có ảnh hưởng đặc biệt đến Dải Ngân hà. Một số nhà khoa học tin rằng sự tương tác giữa vật chất tối với các thiên hà nhỏ hơn, gần đó đang khiến Dải Ngân hà có đường nét bị cong vênh. Nó đã được khẳng định rằng không chỉ vật chất tối tồn tại, nó còn có thể chịu trách nhiệm cho hình dạng khác thường của Dải Ngân hà. Sự tương tác được tham chiếu này liên quan đến hai thiên hà nhỏ hơn gần Dải Ngân hà, được gọi là các đám mây Magellanic, di chuyển qua một lượng lớn vật chất tối, thực chất là tăng cường lực hấp dẫn mà hai đám mây Magellanic có thể có trên Dải Ngân hà và các vật thể xung quanh khác. Nếu không có sự tồn tại của vật chất tối, các đám mây Magellanic sẽ không có đủ khối lượng để có tác động mạnh mẽ như vậy đối với sự uốn cong của Dải Ngân hà. 

Bằng chứng mạnh mẽ nhất cho giá trị của giả thuyết này nằm trong vật lý Newton và giả thuyết rằng bất cứ thứ gì có khối lượng sẽ tạo ra lực hấp dẫn. Dải Ngân hà và các thiên hà khác với hình dạng cong vênh kỳ lạ đang được tạo hình bởi một lực hấp dẫn. Tuy nhiên, không có gì có thể quan sát dễ dàng với khối lượng đủ lớn có thể gây ra mức độ biến dạng cao như vậy thông qua lực hấp dẫn ở vùng lân cận Dải Ngân hà. Do đó, thứ gì đó không dễ được quan sát chắc hẳn đang phát huy được lực cần thiết để tạo ra hình dạng cong vênh của thiên hà. 

Aaron Romanowsky và một số đồng nghiệp đã đặt câu hỏi về ảnh hưởng của vật chất tối đối với các thiên hà. Họ chỉ ra sự tồn tại của một số thiên hà hình elip được bao quanh bởi rất ít vật chất tối như bằng chứng cho việc vật chất tối thực tế không phải là nguyên nhân làm các thiên hà bị cong vênh. Mặc dù họ không cho rằng những phát hiện của mình nên được giải thích để kết luận rằng vật chất tối không tồn tại, 

nhưng rõ ràng họ tin rằng kết quả nghiên cứu của họ khiến người ta nghi ngờ về một số lý thuyết thông thường về sự hình thành và điều chỉnh thiên hà. 

Tuy nhiên, một số mô hình được xây dựng bởi các nhà nghiên cứu từ Đại học California tại Berkeley, chỉ ra ý tưởng rằng vật chất tối là lời giải thích khả dĩ nhất cho hình dạng méo mó của Dải Ngân hà và các thiên hà khác. Sử dụng các mô hình máy tính, họ đã lập bản đồ các khả năng tương tác giữa các thiên hà nhất định và vật chất tối xung quanh chúng và những mô hình đó không chỉ cho thấy khả năng vật chất tối chịu trách nhiệm cho hình dạng của Dải Ngân hà, mà còn là mối quan hệ giữa vật chất tối và các đám mây Magellanic là năng động; sự chuyển động của các đám mây qua vật chất tối dường như tạo ra một sự lực đẩy giúp tăng cường ảnh hưởng lực hấp dẫn của chúng trên Dải Ngân hà. 

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CÂU HỎI HOT CÙNG CHỦ ĐỀ

Câu 1:

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

Dark matter in the universe is believed by some scientists to be a substance that is not readily observable because it does not directly refract light or energy. Its existence can only be deduced because of the effect that it has on surrounding matter. In fact, some members of the scientific community have argued that dark matter does not actually exist. Others, however, believe in its existence, in part because the scientific community does not have a complete understanding of gravita science. On the other hand, some would argue that it is the understanding of gravitational science that leads most scientists to believe in the existence of dark matter, because without dark matter, there are many cosmological phenomena that are difficult to explain. 

For example, dark matter in the universe may have a peculiar effect on the Milky Way galaxy. Some scientists believe that the interaction between dark matter and other smaller, nearby galaxies is causing the Milky Way galaxy to take on a warped profile. It has been asserted that not only does dark matter exist, it may also be responsible for the Milky Way’s unusual shape. The interaction referenced involves two smaller galaxies near the Milky Way, called Magellanic clouds, moving through an enormous amount of dark matter, which, in effect, enhances the gravitational pull that the two Magellanic clouds could have on the Milky Way and other surrounding bodies. Without the existence of the dark matter, the Magellanic clouds would not have sufficient mass to have such a strong effect on the bend of the Milky Way galaxy. 

The strongest evidence for the validity of this hypothesis rests in Newtonian physics, and the hypothesis that anything with mass will exert a gravitational pull. The Milky Way and other galaxies with peculiar warped shapes are being molded by a gravitational force. However, there is nothing readily observable with sufficient mass that could cause such a high level of distortion via gravitational pull in the vicinity of the Milky Way. Therefore, something that is not easily observed must be exerting the necessary force to create the warped shape of the galaxy. 

Aaron Romanowsky and several colleagues have questioned the effect that dark matter might have on galaxies. They point to the existence of several elliptical galaxies surrounded by very little dark matter as evidence that dark matter is not, in fact, the cause of the warped galaxies. While they do not claim that their findings should be interpreted to conclude that dark matter does not exist, they apparently believe that the results of their studies cast doubt on some of the conventional theories of galaxy formation and manipulation. 

Several models constructed by researchers from the University of California at Berkeley, however, point to the idea that dark matter is the most likely explanation for the distorted shape of the Milky Way and other galaxies. Using computer models, they have mapped the likely interactions between certain galaxies and the surrounding dark matter, and those models have shown not only the possibility that dark matter is responsible for the warped shape of the Milky Way, but that the relationship between the dark matter and the Magellanic clouds is dynamic; the movement of the clouds through the dark matter seems to create a wake that enhances their gravitational influence on the Milky Way. 

What does the passage offer as evidence for the existence of dark matter?

Xem đáp án » 18/06/2021 5,476

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.

Culture has a strong influence on non–verbal communication. Even the simple act of looking someone in the eye is not at all that simple. In the USA, Americans are (5) ______ to look directly at people when speaking to them. It shows interest in what they are saying and is thought to carry a (6) ______ of honesty. Meanwhile, in Japan and Korea, people avoid long periods of eye contact. It is considered more polite to look to the side during a conversation. The Lebanese, (7) ______, stand close together and look intensely into each other's eyes. The action shows sincerity and gives people a better sense of what their counterparts want. Given such differences with even the most common expressions, people (8) ______ travel or work abroad have a real need to learn the other culture's body language. People tend to be unaware of the messages they are sending to others. So, it is (9) ______ to consider your own body language before dealing with people from other cultures. Knowing about the body language of friends, clients, and colleagues can be very helpful in improving understanding and avoiding miscommunication.

Điền vào ô số 5

Xem đáp án » 18/06/2021 3,086

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.

Culture has a strong influence on non–verbal communication. Even the simple act of looking someone in the eye is not at all that simple. In the USA, Americans are (5) ______ to look directly at people when speaking to them. It shows interest in what they are saying and is thought to carry a (6) ______ of honesty. Meanwhile, in Japan and Korea, people avoid long periods of eye contact. It is considered more polite to look to the side during a conversation. The Lebanese, (7) ______, stand close together and look intensely into each other's eyes. The action shows sincerity and gives people a better sense of what their counterparts want. Given such differences with even the most common expressions, people (8) ______ travel or work abroad have a real need to learn the other culture's body language. People tend to be unaware of the messages they are sending to others. So, it is (9) ______ to consider your own body language before dealing with people from other cultures. Knowing about the body language of friends, clients, and colleagues can be very helpful in improving understanding and avoiding miscommunication.

Điền vào ô số 9

Xem đáp án » 18/06/2021 2,884

Câu 4:

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.

A severe illness when she was just nineteen months old deprived the well–known writer and lecturer Helen Keller from both her sight and hearing.

Xem đáp án » 18/06/2021 1,115

Câu 5:

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

Dark matter in the universe is believed by some scientists to be a substance that is not readily observable because it does not directly refract light or energy. Its existence can only be deduced because of the effect that it has on surrounding matter. In fact, some members of the scientific community have argued that dark matter does not actually exist. Others, however, believe in its existence, in part because the scientific community does not have a complete understanding of gravita science. On the other hand, some would argue that it is the understanding of gravitational science that leads most scientists to believe in the existence of dark matter, because without dark matter, there are many cosmological phenomena that are difficult to explain. 

For example, dark matter in the universe may have a peculiar effect on the Milky Way galaxy. Some scientists believe that the interaction between dark matter and other smaller, nearby galaxies is causing the Milky Way galaxy to take on a warped profile. It has been asserted that not only does dark matter exist, it may also be responsible for the Milky Way’s unusual shape. The interaction referenced involves two smaller galaxies near the Milky Way, called Magellanic clouds, moving through an enormous amount of dark matter, which, in effect, enhances the gravitational pull that the two Magellanic clouds could have on the Milky Way and other surrounding bodies. Without the existence of the dark matter, the Magellanic clouds would not have sufficient mass to have such a strong effect on the bend of the Milky Way galaxy. 

The strongest evidence for the validity of this hypothesis rests in Newtonian physics, and the hypothesis that anything with mass will exert a gravitational pull. The Milky Way and other galaxies with peculiar warped shapes are being molded by a gravitational force. However, there is nothing readily observable with sufficient mass that could cause such a high level of distortion via gravitational pull in the vicinity of the Milky Way. Therefore, something that is not easily observed must be exerting the necessary force to create the warped shape of the galaxy. 

Aaron Romanowsky and several colleagues have questioned the effect that dark matter might have on galaxies. They point to the existence of several elliptical galaxies surrounded by very little dark matter as evidence that dark matter is not, in fact, the cause of the warped galaxies. While they do not claim that their findings should be interpreted to conclude that dark matter does not exist, they apparently believe that the results of their studies cast doubt on some of the conventional theories of galaxy formation and manipulation. 

Several models constructed by researchers from the University of California at Berkeley, however, point to the idea that dark matter is the most likely explanation for the distorted shape of the Milky Way and other galaxies. Using computer models, they have mapped the likely interactions between certain galaxies and the surrounding dark matter, and those models have shown not only the possibility that dark matter is responsible for the warped shape of the Milky Way, but that the relationship between the dark matter and the Magellanic clouds is dynamic; the movement of the clouds through the dark matter seems to create a wake that enhances their gravitational influence on the Milky Way. 

According to the passage, what is Aaron Romanowsky’s theory regarding dark matter?

Xem đáp án » 18/06/2021 1,056

Câu 6:

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

Dark matter in the universe is believed by some scientists to be a substance that is not readily observable because it does not directly refract light or energy. Its existence can only be deduced because of the effect that it has on surrounding matter. In fact, some members of the scientific community have argued that dark matter does not actually exist. Others, however, believe in its existence, in part because the scientific community does not have a complete understanding of gravita science. On the other hand, some would argue that it is the understanding of gravitational science that leads most scientists to believe in the existence of dark matter, because without dark matter, there are many cosmological phenomena that are difficult to explain. 

For example, dark matter in the universe may have a peculiar effect on the Milky Way galaxy. Some scientists believe that the interaction between dark matter and other smaller, nearby galaxies is causing the Milky Way galaxy to take on a warped profile. It has been asserted that not only does dark matter exist, it may also be responsible for the Milky Way’s unusual shape. The interaction referenced involves two smaller galaxies near the Milky Way, called Magellanic clouds, moving through an enormous amount of dark matter, which, in effect, enhances the gravitational pull that the two Magellanic clouds could have on the Milky Way and other surrounding bodies. Without the existence of the dark matter, the Magellanic clouds would not have sufficient mass to have such a strong effect on the bend of the Milky Way galaxy. 

The strongest evidence for the validity of this hypothesis rests in Newtonian physics, and the hypothesis that anything with mass will exert a gravitational pull. The Milky Way and other galaxies with peculiar warped shapes are being molded by a gravitational force. However, there is nothing readily observable with sufficient mass that could cause such a high level of distortion via gravitational pull in the vicinity of the Milky Way. Therefore, something that is not easily observed must be exerting the necessary force to create the warped shape of the galaxy. 

Aaron Romanowsky and several colleagues have questioned the effect that dark matter might have on galaxies. They point to the existence of several elliptical galaxies surrounded by very little dark matter as evidence that dark matter is not, in fact, the cause of the warped galaxies. While they do not claim that their findings should be interpreted to conclude that dark matter does not exist, they apparently believe that the results of their studies cast doubt on some of the conventional theories of galaxy formation and manipulation. 

Several models constructed by researchers from the University of California at Berkeley, however, point to the idea that dark matter is the most likely explanation for the distorted shape of the Milky Way and other galaxies. Using computer models, they have mapped the likely interactions between certain galaxies and the surrounding dark matter, and those models have shown not only the possibility that dark matter is responsible for the warped shape of the Milky Way, but that the relationship between the dark matter and the Magellanic clouds is dynamic; the movement of the clouds through the dark matter seems to create a wake that enhances their gravitational influence on the Milky Way. 

The word conventional paragraph 4 most nearly means:

Xem đáp án » 18/06/2021 909

Câu 7:

Mark the letter A, B, C or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.

He was imprisoned because he revealed secrets to the enemies.

Xem đáp án » 18/06/2021 870

Câu 8:

The fussy child ate only a few _______ of noodles.

Xem đáp án » 18/06/2021 864

Câu 9:

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

Dark matter in the universe is believed by some scientists to be a substance that is not readily observable because it does not directly refract light or energy. Its existence can only be deduced because of the effect that it has on surrounding matter. In fact, some members of the scientific community have argued that dark matter does not actually exist. Others, however, believe in its existence, in part because the scientific community does not have a complete understanding of gravita science. On the other hand, some would argue that it is the understanding of gravitational science that leads most scientists to believe in the existence of dark matter, because without dark matter, there are many cosmological phenomena that are difficult to explain. 

For example, dark matter in the universe may have a peculiar effect on the Milky Way galaxy. Some scientists believe that the interaction between dark matter and other smaller, nearby galaxies is causing the Milky Way galaxy to take on a warped profile. It has been asserted that not only does dark matter exist, it may also be responsible for the Milky Way’s unusual shape. The interaction referenced involves two smaller galaxies near the Milky Way, called Magellanic clouds, moving through an enormous amount of dark matter, which, in effect, enhances the gravitational pull that the two Magellanic clouds could have on the Milky Way and other surrounding bodies. Without the existence of the dark matter, the Magellanic clouds would not have sufficient mass to have such a strong effect on the bend of the Milky Way galaxy. 

The strongest evidence for the validity of this hypothesis rests in Newtonian physics, and the hypothesis that anything with mass will exert a gravitational pull. The Milky Way and other galaxies with peculiar warped shapes are being molded by a gravitational force. However, there is nothing readily observable with sufficient mass that could cause such a high level of distortion via gravitational pull in the vicinity of the Milky Way. Therefore, something that is not easily observed must be exerting the necessary force to create the warped shape of the galaxy. 

Aaron Romanowsky and several colleagues have questioned the effect that dark matter might have on galaxies. They point to the existence of several elliptical galaxies surrounded by very little dark matter as evidence that dark matter is not, in fact, the cause of the warped galaxies. While they do not claim that their findings should be interpreted to conclude that dark matter does not exist, they apparently believe that the results of their studies cast doubt on some of the conventional theories of galaxy formation and manipulation. 

Several models constructed by researchers from the University of California at Berkeley, however, point to the idea that dark matter is the most likely explanation for the distorted shape of the Milky Way and other galaxies. Using computer models, they have mapped the likely interactions between certain galaxies and the surrounding dark matter, and those models have shown not only the possibility that dark matter is responsible for the warped shape of the Milky Way, but that the relationship between the dark matter and the Magellanic clouds is dynamic; the movement of the clouds through the dark matter seems to create a wake that enhances their gravitational influence on the Milky Way. 

The passage supports which of the following statements about dark matter?

Xem đáp án » 18/06/2021 740

Câu 10:

Mark the letter A, B, C or D on your answer sheet to indicate the word(s) that is CLOSET in meaning to the underlined word(s) in each of the following questions.

Being a single mother no longer carries the social stigma that is used to.

Xem đáp án » 18/06/2021 663

Câu 11:

Mark the letter A, B, C or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.

Earthworms help to aerate the soil.

Xem đáp án » 18/06/2021 616

Câu 12:

_______ for a second interview will be informed by mail.

Xem đáp án » 18/06/2021 555

Câu 13:

The escaping prisoner camped in _______ woods but he didn’t light _______ fire because _______ smoke rising from the wood might attract _______ attention.

Xem đáp án » 18/06/2021 535

Câu 14:

True friends always stand by you when you’re _______.

Xem đáp án » 18/06/2021 520

Câu 15:

Mark the letter A, B, C or D on your answer sheet to indicate the word whose underlined part differs from other three in pronunciation in each of the following questions.

Xem đáp án » 18/06/2021 485

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