Q: Read the following article and answer the question. Article: 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." Question: We can learn from the passage that _ . Answer: | OPTIONS:
- Susan Jebb did not take part in the study.
- the study observed people as well as tested specific changes.
- there's no need for people under 45 to adopt these good habits.
- only those from first class can benefit from these healthy behaviors.
A: Susan Jebb did not take part in the study.

Q: Read the following article and answer the question. Article: Good posture certainly shows good health. It also adds to a body's energy and beauty. The body is not handsome when the back is bent and neck thrusts forward. Bad posture suggests the impression that a person is tired,lacking in energy,bored,or weak. Tiredness may sometimes be the cause of bad posture. Most often,however,it is due to careless and poor health habits. Whatever it causes,bad posture affects one physically. The muscles are stretched and pulled into unnatural positions,which can lead to poor base of the body's various systems. Nutrition is the study of how the body takes food and uses it. This science provides information about the kinds of food a person must eat to improve and maintain good health. Such knowledge helps him develop and form people habits to his problems of healthful living. People habits of nutrition can be developed by paying attention to:(1) the variety of food included in the diet;(2) the quality of each kind of food eaten. A diet,or the food regularly eaten,must contain all the necessary factors. Many physicians believe that overweight is one of the greatest dangers to good health. This condition often leads to a shorter life. An overweight person is also easier to suffer disease, and various disorders of the digestive system. A person's weight directly has something to do with the amounts of food he eats. All foods can make a person fat if too much is eaten. In reducing,the safe weight loss is about two pounds a week. The sensible way to lose weight is to decrease the gaining starchy foods,fats and sweets in the diet. Question: We can infer from the statement "all foods can make a person fat if too much is eaten" that _ . Answer: | OPTIONS:
- to lose weight you had better eat properly for daily meals
- the most effective way to lose weight is to have no fat and sweet
- even vegetables can make you put on weight , so there is no need to have fat and sweet.
- a shorter life is a sure result of overweight
A: to lose weight you had better eat properly for daily meals

Q: Read the following article and answer the question. Article: Deadly heat waves, home-wrecking hurricanes, neighborhood-burning wildfires...When you stop to think about it, global warming can be thoroughly depressing. According to rising evidence, climate changewon't just cause new cases of stress, anxiety and depression. People who already have serious psychological problems will probably suffer most in the result of natural disasters and extreme weather events. "When these events happen, people with pre-established mental illnesses often have more extreme difficulty," said Lisa Page, a psychiatrist. "This is an area we maybe need to think about a little more seriously." In public health circles and even in climate talks, scientists have studied how climate change might affect physical health, by for example, causing the spread of malaria, fever and other infectious diseases. For the most part, though, the experts have made only vague references to the link between climate change and mental health, even though evidence for such connections is starting to pile up. In the future, climate models predict more destructive storms, floods, droughts and diseases. In turn, the new study suggests, more psychological crises will follow. Heat waves -- like the one that killed some 70,000 people in Europe in the summer of 2003 -- will also happen more frequently, last longer and be severer in coming years. The mentally ill will be hardest hit by these events because they're more likely to live in poor housing without air conditioning. People with pre-existing mental challenges will probably also have an extra hard time dealing with other forecasted consequences of climate change, including the sinking of coastlines and mass migration away from flooded shores. Then, there's the general sense of sadness that can come from reading about climate change, and recognizing that the world is changing. Question: The author mentioned heat waves in Europe to prove _ . Answer: | OPTIONS:
- the serious damage of a natural disaster
- the increasing cases of mental disorders
- the power of nature
- the change of these heavy waves' occurrence
A: the increasing cases of mental disorders