Read the following passage carefully and then choose the best answer to each question.
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.
Which of the following could best replace the word "incidence" as used in line 3?
A. factor
B. rate
C. chance
D. increase
Giải bởi qa.haylamdo.com
B
Incidence = sự tác động vào; tỉ lệ. rate = tỉ lệ. factor = yếu tố. chance = cơ hội. increase = sự gia tăng
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.
“ Can I see your ticket please””
Mark the letter A, B, C or D on your answer sheet to show the underlined part that needs correction from:
Bacteria are one of the most abundant (A) life forms (B) on earth, growing on and inside another (C) living things, in every type of environment (D).
Mark the letter A, B, C or D on your answer sheet to show the underlined part that needs correction from:
A galaxy, where (A) may include billions of (B) stars, is (C) held together (D) by gravitation attraction
The meaning from touch is dependent _______ the context, the relationship between communicators, and the manner of touch
_________he was good at physics in lower grade, he was terrible at it in grade 12
Choose the word or phrase - A, B, C or D - that best completes the passage.
The most dominant and reliable features of facial expressions provide a constant channel of communication. They can be shifty and evasive; convey hate, fear, and guilt; or (35) _____ confidence, love, and support.
Referred to as "mirrors of the soul" our eyes serve as the major decisive factor in (36) _____ the spoken words. The eyes of the man converse as (37) _____ as their tongues, with the advantage that the ocular dialect needs (38) _____ dictionary, but it is understood all over the world. When the eyes say one thing, and the tongue another, a practiced man relies on eyes. Except (39) _____ extremely shy individuals, most people look for social acceptance by studying the eyes of others. Eyes also can (40) _____ indicate a positive or a negative relationship. People tend to look longer and more often at the people whom they trust, respect and care about than at those whom they doubt or (41) _____. Normal eye dilation is not under control of the individual. Personally characteristics such as introversion and extroversion also influence eye behavior. Eye behavior seems (42) ____ particular importance and is generally used to indicate whether one is open to communication. This can be observed when a teacher asks the class a question: students who think they know the answer will generally (43) ____ at the teacher, (44) ____ students who do not know the answer will usually try to avoid eye contact
Điền vào ô 35
Mark the letter A, B, C or D on your answer sheet to indicate the word or phrase that is CLOSEST in meaning to the underlined part in each of the following questions.
She was brought up in a well-off family. She can’t understand the problems we are facing
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.
She has lost her appetite recently
