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Câu hỏi:

20/07/2024 185

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 1 to 8.

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 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 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 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 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.

word "trigger" as used in the first paragraph is closest in meaning to which of the following?

A. involve

B. affect

C. cause

Đáp án chính xác

D. encounter

Trả lời:

verified Giải bởi Vietjack

Chọn đáp án C

Từ "trigger" được dùng trong đoạn 1 gần nghĩa với từ nào dưới đây?

A. bao gồm, liên quan đến

B. ảnh hưởng

C. gây ra = trigger (gây ra, gây nên)

D. xảy ra

Giải thích: “researchers have become increasingly interested in identifying the potential risk factors that trigger heart attacks” (Các nhà nghiên cứu đã ngày càng quan tâm tới việc xác định yếu tố rủi ro có thể xảy ra gây ra cơn đau tim)

Câu trả lời này có hữu ích không?

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CÂU HỎI HOT CÙNG CHỦ ĐỀ

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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.

He was asked to account for his presence at the scene of the crime.

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Câu 2:

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

I always enjoy our school _______to France.

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Câu 3:

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.

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Câu 4:

Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges.

“Excuse me, is anybody sitting here?” – “________”

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Câu 5:

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

Marie Curie, ________, was awarded a Nobel Prize for her work.

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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.

I usually buy my clothes_____. It’s cheaper than going to the dress maker.

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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.

The farmers removed some underdeveloped trees to improve the growth of the rest.

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Câu 8:

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.

The new laws to conserve wildlife in the area will come into force next month

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Câu 9:

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.

The hostess made every effort to see that her guests got the food and drinks they wanted.

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Câu 10:

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.

He felt very tired. However, he was determined to continue to climb up the mountain.

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Câu 11:

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

Prices quoted in this package include _____ hours of Internet access for one month.

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Câu 12:

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.

She heard the news of the death of her father. She fainted.

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Câu 13:

 

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

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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 1 to 5.

A team of Russian scientists has challenged the theory that the woolly mammoths became extinct 10,000 years ago at the end of the Ice Age. The scientists have reported that the beasts may have survived until 2000 B.C. on an island off the coast of Siberia, where researchers uncovered 29 fossilized woolly mammoth teeth ranging in age from 4,000 to 7,000 years. The question to be asked now is, how did these prehistoric pachyderms survive in their island environment? One possibility is that they adapted to their confined surroundings by decreasing their bulk. This theory is based on their smaller tooth size, which has led scientists to believe that they were only 6 feet tall at the shoulder compared with 10 feet of their full-sized counterpart. But would this be enough to enable them to survive thousands of years beyond that of other mammoths? Researchers are still working to uncover the reasons for this isolated group's belated disappearance.

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Câu 15:

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. Fill in the appropriate word in question 37

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Even where the land is (36)_______ covered with plants, some erosion goes on. In the spring, the melting snow turns into a large quantity of water that then runs downhill in streams. As a stream carries away some of the soil, the stream bed gets deeper and deeper. (37)_______ thousands of years of such erosion, wide valleys are often formed.

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