Read the following pasage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions
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 .
The word “trigger” as used in the first paragraph is closest in meaning to which of the following?
A. involve
B. affect
C. cause
D. encounter
Giải bởi qa.haylamdo.com
C
Kiến thức: Đọc hiểu
Giải thích:
Từ “trigger” như được sử dụng trong đoạn đầu tiên có ý nghĩa gần nhất với câu nào dưới đây?
A. bao gồm B. ảnh hưởng
C. gây ra D. gặp gỡ
“trigger” = cause
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. (Bởi bệnh tim tiếp tục là căn bệnh chết người số một tại Hoa Kỳ, các nhà nghiên cứu ngày càng quan tâm đến việc xác định các yếu tố nguy cơ tiềm ẩn gây ra các cơn đau tim.)
Đáp án:C
If it had not rained last night, the roads in the city ______ so slippery now.
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 first each of the numbered blanks from 1 to 5.
Nowadays people are more aware that wildlife all over the world is in (1)________. Many species of animals are threatened, and could easily become (2)________. if we do not make an effort to protect them. In some cases, animals are hunted for their fur or for other valuable parts of their bodies. Some birds, such as parrots, are
caught (3)________. and sold as pets. For many animals and birds the problem is that their habitat - the place
where they live - is disappearing. More land is used for farms, for houses or industry, and there are fewer open spaces than there once were. Farmers use powerful chemicals to help them to grow better crops, but these chemicals pollute the environment and (4)________. wildlife. The most successful animals on earth - human beings - will soon be the only ones (5)________., unless we can solve this problem.
Điền vào ô 4
For thousands of years, people have used some kind of refrigeration cooling beverages and preserve edibles
Mark the letter A, B, C or D on your answer sheet to indicate the word whose underlined part differs from the other three in the pronunciation in each of the following questions
She helped us a lot with our project. We couldn‟t continue without her.
The ______ cheered when the final goal was scored in the match today.
Mark the letter A, B, C or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.
Until the situation has settled down, it is _____ to travel to that country.
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.
Important features of dehydrated foods are their lightness in weight and their compactness.
If oil supplies run out in 2050 then we need to find ______ energy sources soon.
Mark the letter A, B, C or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.
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 first each of the numbered blanks from 1 to 5.
Nowadays people are more aware that wildlife all over the world is in (1)________. Many species of animals are threatened, and could easily become (2)________. if we do not make an effort to protect them. In some cases, animals are hunted for their fur or for other valuable parts of their bodies. Some birds, such as parrots, are
caught (3)________. and sold as pets. For many animals and birds the problem is that their habitat - the place
where they live - is disappearing. More land is used for farms, for houses or industry, and there are fewer open spaces than there once were. Farmers use powerful chemicals to help them to grow better crops, but these chemicals pollute the environment and (4)________. wildlife. The most successful animals on earth - human beings - will soon be the only ones (5)________., unless we can solve this problem.
Điền vào ô 5
