Câu hỏi:
16/09/2023 879
The pain of a migraine headache can virtually disable a person who suffers from it. Millions and millions of people suffer from migraines, although many of them do not even recognize that a migraine is different from a regular headache. A migraine is not at all the same as a normal headache, and it seems to have a very physical cause.
One symptom of a migraine is a precursor, which is a visual aura before an attack. Yet only about a third of patients actually experience that, and it is therefore not a requirement in the diagnosis. Other symptoms include increased pain when a person moves, nausea, and sensitivity to light and sound. Scientists now believe that migraines are caused, not by abnormal blood vessels as previously believed, but instead by a unique electrical disorder of brain cells. Physicians used to treat migraines with medicine to constrict blood vessels because of the belief that dilated blood vessels were the cause.
The new research has been enhanced by imaging devices that allow scientists to watch patients' brains during an attack. The results show that sufferers have abnormally excitable neurons, or brain nerve cells. Prior to the attack, the neurons suddenly fire off electrical pulses at the back of the brain, which ripple like waves on a lake after a stone hits the water. They ripple across the top and then the back of the brain, ultimately affecting the brain stem where the pain centers are located. The pain then generates possibly from the brain stem itself or from blood vessels inflamed by the rapidly changing blood flow, or perhaps from both.
Scientists have experimented by applying a powerful magnet to stimulate the neurons and discovered that some people's brains react differently than others'. When stimulation was applied to the brains of people who had suffered migraines, they saw the initial aura, and some actually suffered migraines. When the same stimulation was applied to the brains of people who had never suffered migraines, they realized no effect and the neurons showed no change.
Scientists and doctors continue to work on the research in an attempt to find the perfect treatment. It is considered important to treat migraines because it is believed that prolonged untreated attacks could cause physical changes in the brain leading to chronic pain.
The author implies that a migraine
The pain of a migraine headache can virtually disable a person who suffers from it. Millions and millions of people suffer from migraines, although many of them do not even recognize that a migraine is different from a regular headache. A migraine is not at all the same as a normal headache, and it seems to have a very physical cause.
One symptom of a migraine is a precursor, which is a visual aura before an attack. Yet only about a third of patients actually experience that, and it is therefore not a requirement in the diagnosis. Other symptoms include increased pain when a person moves, nausea, and sensitivity to light and sound. Scientists now believe that migraines are caused, not by abnormal blood vessels as previously believed, but instead by a unique electrical disorder of brain cells. Physicians used to treat migraines with medicine to constrict blood vessels because of the belief that dilated blood vessels were the cause.
The new research has been enhanced by imaging devices that allow scientists to watch patients' brains during an attack. The results show that sufferers have abnormally excitable neurons, or brain nerve cells. Prior to the attack, the neurons suddenly fire off electrical pulses at the back of the brain, which ripple like waves on a lake after a stone hits the water. They ripple across the top and then the back of the brain, ultimately affecting the brain stem where the pain centers are located. The pain then generates possibly from the brain stem itself or from blood vessels inflamed by the rapidly changing blood flow, or perhaps from both.
Scientists have experimented by applying a powerful magnet to stimulate the neurons and discovered that some people's brains react differently than others'. When stimulation was applied to the brains of people who had suffered migraines, they saw the initial aura, and some actually suffered migraines. When the same stimulation was applied to the brains of people who had never suffered migraines, they realized no effect and the neurons showed no change.
Scientists and doctors continue to work on the research in an attempt to find the perfect treatment. It is considered important to treat migraines because it is believed that prolonged untreated attacks could cause physical changes in the brain leading to chronic pain.
The author implies that a migraine
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Giải bởi Vietjack
D
Tác giả ngụ ý rằng chứng đau nửa đầu
A. chỉ là cơn đau đàu dữ dội
B. có thể chữa trị bằng thuốc giảm đau thông thường
C. bị gây ra bởi những thứ giống như nguyên nhân gây đau đầu.
D. có nguyên nhân khoa học riêng, không giống như đau đầu.
Dẫn chứng: A migraine is not at all the same as a normal headache, and it seems to have a very physical cause.
=>Chọn D
Câu hỏi cùng đoạn
Câu 2:
The word “it “ in paragraph 1 refers to
The word “it “ in paragraph 1 refers to
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Lời giải của GV VietJack
B
Từ “it” ở đoạn 1 ám chỉ đến
A. vết thương
B. chứng đau nửa đầu
C. con người
D. sự chịu đựng
Dẫn chứng: The pain of a migraine headache can virtually disable a person who suffers from it.
=>Chọn B
Câu 3:
The prior treatment for migraines included medicine that
The prior treatment for migraines included medicine that
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Lời giải của GV VietJack
B
Phương pháp chữa trị tối ưu cho chứng đau nửa đầu bao gồm
A. loại bỏ cơn đau
B. thắt chặt mạch máu
C. loại bỏ cơn đau thoáng qua
D. loại bỏ căng thẳng
Dẫn chứng: Physicians used to treat migraines with medicine to constrict blood vessels because of the belief that dilated blood vessels were the cause.
=>Chọn B
Câu 4:
The word enhanced in paragraph 4 is closest in meaning to
The word enhanced in paragraph 4 is closest in meaning to
Đáp án chính xác
Lời giải của GV VietJack
B
Từ “enhance” [ tăng cường] ở đoạn 4 gần nghĩa nhất với
A. ngăn cản
B. tăng cường
C. mô tả
D. nghiên cứu
Dẫn chứng:
=>enhanced = agumented
Dẫn chứng: The new research has been enhanced by imaging devices that allow scientists to watch patients' brains during an attack.
=>Chọn B
Câu 5:
The new research indicates that the neurons in the brain of migraine sufferers
The new research indicates that the neurons in the brain of migraine sufferers
Đáp án chính xác
Lời giải của GV VietJack
B
Nghiên cứu mới cho thấy rằng những sợi dây thần kinh trong não của những người bị đau nửa đầu
A. có nhiều điện cực hơn những người không bị đau nửa đầu.
B. có xu hướng phát hỏa trạng thái bất thường khi chứng đau nửa đầu bắt đầu.
C. không phản ứng
D. không ảnh hưởng đến chứng đau nửa đầu
Dẫn chứng: The results show that sufferers have abnormally excitable neurons, or brain nerve cells.
=>Chọn B
Câu 6:
According to the passage, now that scientists know that unusual neurons in certain people are the cause of migraines, they
According to the passage, now that scientists know that unusual neurons in certain people are the cause of migraines, they
Đáp án chính xác
Lời giải của GV VietJack
C
Theo bài đọc, ngày nay các nhà khoa học biết rằng dây thần kinh bất thường ở một số người nhất định là nguyên nhân của chứng đau nửa đầu, họ
A. biết rằng tất cả họ cần biết về nguyên nhân gây ra chứng đau nửa đầu.
B. đã phát triển thuốc để giữ lại điện của dây thần kinh
C. vẫn chưa biết chính xác nguyên nhân gây ra cơn đau.
D. biết rằng những dây thần kinh khuyết tật trú ngụ trong thân não
Dẫn chứng: The pain then generates possibly from the brain stem itself or from blood vessels inflamed by the rapidly changing blood flow, or perhaps from both.
=>Chọn C
Câu 7:
The best title for this passage would be what?
The best title for this passage would be what?
Đáp án chính xác
Lời giải của GV VietJack
C
Tiêu đề phù hợp nhất cho bài đọc này là gì?
A. phác họa hình ảnh như là phương tiện nghiên cứu chứng đâu nửa đầu.
B. chứng đau nửa đầu và đau đầu khác nhau như thế nào
C. bằng chứng mới của việc chứng đau nửa đầu được hình thành như thế nào
D. những phương pháp chữa trị chứng đau nửa đầu mới
=>Chọn C
Nhà sách VIETJACK:
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