To get an extra 14 years of life, don't smoke, eat lots of fruits and vegetables, exercise regularly and drink alcohol in a proper amount.That is according to a study published this Monday in the Public Library of Science Medicine Journal. After tracking more than 20,000 people aged 45 to 79 years in the United Kingdom from about 1993 to 2007, Kay-Tee Khaw of the University of Cambridge and his colleagues found that people who adopted these four healthy habits lived all average of 14 years longer than those who didn't. "We've known for a long time that these behaviors are good things to do, but we've not seen this benefit before, "said Susan Jebb, head of Nutrition and Health at Britain's Medical Research Council."The benefit was also seen regardless of whether or not people were fat and what social class they came from." Study participants scored a point each for not smoking, regular physical activity, eating five servings of fruits and vegetables a day and moderate alcohol intake. Public health experts said they hoped the study would inspire governments to introduce policies helping people to adopt these changes.But because the study only observed people rather than testing specific changes, it would be impossible to conclude that people who suddenly adopted these healthy behaviors would surely gain 14 years. "We can't say that any person could gain 14 years by doing these things, "said Dr.Tim Armstrong, a physical activity expert at the World Health Organization."The 14 years is an average across the population of what's theoretically possible." "Most people know that things like a good diet matter and that smoking isn't good for them, "Susan Jebb said."We need to work on providing people with much more practical support to help them change." What can be inferred from the passage? A) All the people are well aware of the harm of their bad habits. B) People aged 45 to 70 have bad habits in the United Kingdom. C) Governments should take measures to help people change their bad habits. D) People have adopted the four healthy habits after knowing they're good.
C
Raised in a motherless home, my father was extremely tightfisted towards us children. His attitude didn't soften as I grew into adulthood and went to college. I had to ride the bus whenever I came home. Though the bus stopped about two miles from home, Dad never met me, even in severe weather. If I _ he'd say in his loudest father-voice, "That's what your legs are for!" The walk didn't bother me as much as the fear of walking alone along the highway and country roads. I also felt less than valued that my father didn't seem concerned about my safety. But that feeling was cancelled one spring evening. It had been a particularly difficult week at college after long hours in labs. I longed for home. When the bus reached the stop, I stepped off and dragged my suitcase to begin the long journey home. A row of hedge edged the driveway that climbed the hill to our house. Once I had turned off the highway to start the last lap of my journey, I always had a sense of relief to see the hedge because it meant that I was almost home. On that particular evening, the hedge had just come into view when I saw something gray moving along the top of the hedge, moving toward the house. Upon closer observation, I realized it was the top of my father's head. Then I knew, each time I'd come home, he had stood behind the hedge, watching, until he knew I had arrived safely. I swallowed hard against the tears. He did care, after all. On later visits, that spot of gray became my watchtower. I could hardly wait until I was close enough to watch for its secret movement above the greenery. Upon reaching home, I would find my father sitting innocently in his chair. "So! My son, it's you!" he'd say, his face lengthening into pretended surprise. I replied, "Yes, Dad, it's me. I'm home." What made the author feel upset was _ . A) the tiredness after long hours in labs. B) the fear of seeing something moving. C) the feeling of being less than valued. D) the loneliness of riding the bus home.
C
Q: As your charming child changes into a rebellious teenager, take a deep breath and have a good look at the situation before you throw up your arms in anger or distress. Your teen takes a vital step towards adulthood by way of fighting against your rules, regulations and attitudes. Moving beyond their previous dependence on parents, teachers and other adults, teens learn to make decisions, understand the consequences of their behavior and get ready to take on adult responsibilities. The growing need for independence sits at the heart of teenage rebellion. Many teens prefer to use peers as role models and often begin to question the reasoning behind home and school boundaries as they step closer to adulthood. The physical changes involved in adolescence coincide with(...) emotional, intellectual and moral growth, points out Kids Health---all of these can affect teenagers strongly and leave them feeling at a loss and stressed. They test different types of behavior, and it's through this testing and boundary pushing that they learn what works and what does not from their own successes and mistakes. Changes to a teenager's hair and clothing emphasize her growing independent tastes and highlight her _ a group of friends. Her opinions may begin to differ from yours as she develops her own values, leading to potential conflicts on subjects ranging from television programs to world affairs. A teen may break family rules regarding chores, loud music and schoolwork and find herself facing unwelcome punishment as a result. These acts of rebellion normally occur from time to time rather than continuously. They give teenagers the chance to see the results of their decisions for themselves and learn when rebellion may be a mistake. Unhealthy patterns of rebellion can include acts of rebellion that increase in frequency. Violent bursts of anger, physically and emotional destructive behavior and offensive language may indicate that your teen feels bitter hatred towards adults and authority and needs help in navigating those... What's the best title for the passage? A) Teenage Problems B) Rebellion against Parents C) Generation Gap D) Teenage Rebellion
A: D
Q: It is said that a great many things about languages are mysterious, and many will always be so. But some things we do know. Firstly, we know that all human beings have a language of some kind. There is no race of men anywhere on earth so backward that it has no language, no set of speech sounds by which the people communicate with one another. In historical times, there has never been a race of men without a language. Secondly, there is no such thing as a primitive language. There are many people whose cultures are underdeveloped, who are, as we say, uncivilized, but the languages they speak are not primitive. In all known languages we can see complexities that must have been tens of thousands of years in developing. This has not always been well understood; indeed, the direct contrary has often been stated. Popular ideas of the language of the American Indians will illustrate. Many people have guessed that the Indians communicated in a very primitive system of noises. Study has proved this to be nonsense. There are, or were, hundreds of American Indian languages, and all of them turn out to be very complicated and very old. They are certainly different from the languages that most of us are familiar with, but they are no more primitive than English and Greek. A third thing we know about language is that all languages are perfectly adequate. This means each one is a perfect means of expressing the culture of the people who speak the language. Finally, we know that language changes. It's natural and normal for language to change; the only languages which do not change are the dead ones. This is easy to understand if we look backward in time. Change goes on in all aspects of language. Grammatical features change as do speech sounds and changes in vocabulary are sometimes very extensive and may occur very rapidly. Vocabulary is the least stable part of any language. According to the author, language changes are most likely to appear in _ . A) grammar B) vocabulary C) intonation D) pronunciation
A: B