Câu hỏi:
20/08/2021 753Read 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 following questions.
Hay fever is a common allergic condition that affects up to one in five people at some point in their life. Symptoms of hay fever include watery and itchy eyes and a runny, congested nose. People suffering from hay fever may experience occasional wheezing and repeated bouts of sneezing and may even lose their sense of smell. Some may also have stopped-up ears. About 30 percent of those who suffer from hay fever may develop the symptoms associated with periodic asthma or a sinus infection. The allergen-antibody theory does not fully explain allergic reactions because the membranes and glands in eyes and ears are controlled by the independent nervous system, which keeps these organs in balance. But the independent nervous system itself is part of the emotional- response center and may cause the feelings of anger, and lack of self-confidence in reaction to allergy-causing substances.
The most common cause of hay fever is the pollen of ragweed, which blossoms during the summer and autumn. When airborne pollen particles, as well as mould, come into contact with the victim's membranes, they can cause allergic reactions that release histamine and result in virtual blockage of air passages. To prevent hay fever or to decrease the severity of its symptoms, contact with the ragweed pollen should be reduced. If possible, stay indoors when the pollen count is high (over 50). Remember to keep windows and doors shut in your house. If it gets too warm, draw the curtains to keep out the sun and lower the temperature. If possible, avoid drying clothes outside. This will help to stop pollen being brought into your house. If you need to go outside or you're travelling, avoid cutting grass, playing or walking in grassy areas and camping - particularly in the early morning; evening and at night, when the pollen count is at its highest. Don't forget to wear wraparound sunglasses to stop pollen getting in your eyes as well.
Although some communities have attempted to eliminate the plants that cause the reactions, elimination programs have not been successful because airborne pollen can travel considerable distances. Antihistamine can help with short but severe attacks. Over extended periods of time, however, patients are prescribed a series of injections of the substance to which they are sensitive in order to increase immunity and thus be relieved of the seasonal allergy
The word “blockage" in the passage is closest in meaning to ________.
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Trả lời:
Kiến thức:
Đọc hiểu- từ vựng
Giải thích:
Từ “blockage” trong đoạn văn gần nghĩa nhất với __________.
=> blockage (n): sự tắc nghẽn = obstruction
Thông tin: When airborne pollen particles, as well as mould, come into contact with the victim's membranes, they can cause allergic reactions that release histamine and result in virtual blockage of air passages.
Tạm dịch: Khi các hạt phấn hoa trong không khí, cũng như nấm mốc, tiếp xúc với màng của bệnh nhân, chúng có thể gây ra các phản ứng dị ứng giải phóng histamine và dẫn đến tắc nghẽn đường dẫn khí ảo.
Chọn C
CÂU HỎI HOT CÙNG CHỦ ĐỀ
Câu 1:
Mark the letter A, B, C or D on your answer sheet to indicate the option that best completes each of the following exchanges
Peter and John, two high school students, are talking about school exams.
- Peter: "I think exams should not be the only way to assess students."
- John: “_______________. There are various others like presentations and projects."
Câu 2:
Mark the letter A, B, C or D on your answer sheet to indicate the underline part that needs correction in each of the following questions
The phrase "cultural diversity" is also sometimes used to mean the variety of human societies or cultures in a special region
Câu 3:
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.
Some companies are making strenuous efforts to increase the proportion of women at all levels of employment
Câu 4:
Mark the letter A, B, C or D on your answer sheet to indicate the underline part that needs correction in each of the following questions
The actor and singer were singing on the stage when we arrived at the theater.
Câu 5:
Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions
Decent and quality jobs must be available for all people who are able to work.
Câu 6:
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
Ben's dreams of a university education went by the board when his father died and he was forced to earn a living
Câu 7:
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 footballer kept playing. His injury was severe
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