20 câu trắc nghiệm Tiếng Anh 11 Unit 3. Sustainable health - Reading and Writing - Friends Global có đáp án

Read the passage carefully and choose the correct answers.

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.

Read the passage carefully and choose the correct answers.

It is back-to-school time in much of the world. Calm, easy mornings are replaced with busy, hurried ones. Children wake up early and get ready for school. Many parents are also getting ready for work, helping their children and preparing food for lunches. But don't forget about breakfast! When things get wildly busy in the morning, some people (6)_____breakfast to save time. But that may be a big mistake for students.

That is the finding of a 2015 study from Cardiff University in Wales. Researchers there looked at 5000 9-11 year-olds from more than 100 primary schools in the U.K. They looked at what the students ate (7) _____ breakfast and then their grades 6 to 18 months later. They found that the students who ate a healthy breakfast (8) _____twice as likely to perform above average in educational activities. The researchers also found that unhealthy breakfasts - such as potato chips or a donut did not appear helpful to educational performance.

A good breakfast is not just helpful for school-aged children. We all may gain from eating something healthy first thing in the morning. A study from researchers at the University of Toronto in Canada found that a breakfast rich in protein and complex carbohydrates (9) _____ performance on short-term and long-term memory. Carbohydrates and protein are especially important because (10)_____a major effect on long-term memory.