Q: Read the article and select the best answer. Article: Having good social relationships -- friends, marriage or children -- may be every bit as important to a healthy life as quitting smoking, losing weight or taking certain medicines. U. S. researchers reported on Tuesday. People with strong social relationships were SO percent less likely to die early than people without such support, the team at Brigham Young University in Utah found. They suggest that the government look at ways to help people keep social relationships as a way of keeping the population healthy. "A lack of social relationships was equal to smoking up to 15 cigarettes a day," psychologist Julianne Holt-Lunstad, who led the study, said in a telephone interview. Her team conducted a study that examined social relationships and their effects on health. They looked at 148 studies that covered more than 308,000 people, published in the Public Library of Science journal PLoS Medicine at www.plosmedicine.org. Having low levels of social relationships was equal to being an alcoholic, was more harmful than not exercising and was twice as harmful as obesity. Social relationships had a bigger effect on early death than getting an injection to prevent pneumonia ,than taking drugs for high blood pressure and far more important than living in air pollution, they found. "I certainly don't want to _ these other risk factors because of course they are very important," Holt-Lunstad said. We need to start taking social relationships just as seriously. " But Holt-Lundstad said there was some evidence that assigning caretakers does not help improve people's health. "Naturally occurring relationships may be different than the support received from someone who is hired for that purpose." she said. Question: According to the text, having poor social relationships is as harmful as _ . Options: A: being fat B: staying up C: not doing sports D: drinking alcohol
A: D

Q: Read the article and select the best answer. Article: "If I rest, I _ "----would be an excellent motto for those who are troubled by the slightest bit of idleness.Even the most hard-working person might adopt it with advantage to serve as a reminder that, if one allows his abilities to rest, like the iron in the unused key, they will soon show signs of rust and, eventually, cannot do the work required of them. Those who would attain the heights reached and kept by great men must- keep their ability polished by constant use, so that they may unlock the doors of knowledge, the gate that guard the entrances to the professions, to science, art, literature, agriculture--every department of human endeavor. Industry keeps the key bright that opens the treasury of achievement.If Hugh Miller, after toiling all day in a quarry, had devoted his evenings to rest and recreation, he would never have become a famous geologist.The celebrated mathematician, Edmund Stone, would never have published a mathematical dictionary, never have found the key to science of mathematics, if he had given his spare moments to idleness, had the little Scotch lad, Ferguson, allowed the busy brain to go to sleep while he tended sheep on the hillside instead of calculating the position of the stars by a string of beads, he would never have become a famous astronomer. Labor defeats all--not inconstant, or ill-directed labor; but faithful, persistent, daily effort toward a well-directed purpose.So industry is the price of noble and enduring success. Question: Why does a hardworking person even use the motto? Because _ . Options: A: he wants to remind himself that he is a hardworking man. B: he wants to remind himself to rest from time to time C: he is afraid that he may idle D: he feels he can do the work required of them.
A: C

Q: Read the article and select the best answer. Article: Tigers are among the most admired and most feared animals in the world . When we think of a tiger, we think of danger. We think of the big teeth and large feet of it. We also think of beauty. The tiger is a hunter that hunts alone. In fact , tigers are probably better than any other land mammal at catching large animals without help. Even so, the life of this big-game hunter isn't easy. Finding food can be difficult, especially for a tiger that is old or weak. Most of the animals it tries to attack get away. A tiger sometimes goes weeks without eating. When that happens, it may hunt animals that can be dangerous even for a tiger. When they are in a bad situation, some tigers may even attack humans. But in fact, tigers kill very few people each year. Most tigers run away when they see people. What tigers have done to people can't compare to what people have done to tigers. Over the last 200 years, we have almost killed tigers in the wild . Today, the tiger is one of the most endangered animals on Earth. A tiger may live 20 years or more, if it is not disturbed by humans. Female tigers usually live longer than male tigers, because the males live more dangerously. It isn't easy for people to tell a male from a female unless the female happens to be with her babies.Only females take care of the young. The big difference between males and females is size. Male tigers are much bigger. Tigers are big eaters. In a single year, one tiger must eat about 70 deer or other large animals. That is one reason why tigers hunt alone. If they lived in big groups, they could never find enough animals to feed them all. Question: According to the passage, why do tigers hunt alone? Options: A: They can run faster hunting alone. B: They can't get along well with other tigers. C: They can hide themselves easily in this way. D: They can't find enough animals to share with other tigers.
A: D