Read the article and select the best answer. Article: Why do some people _ when they drink alcohol? This effect is a common reaction to alcohol among East Asians. It affects about 36 percent of Japanese, Chinese and Koreans. For many, even a small amount of alcohol can cause unpleasant effects. Most commonly, their face, neck and sometimes their whole body turn red. People might also feel uncomfortable and sick to their stomach. They might experience a burning sensation, increased heart rate, shortness of breath and headaches. The cause is a genetic difference that they are born with called an ALDH2 deficiency . It prevents their bodies from treating alcohol the way other people do. But the effects might be more serious than just a red face. Researchers warn of a link between this condition and an increased risk of cancer of the esophagus from drinking alcohol. The more alcohol people with this deficiency drink, the greater their risk is. In Japan and South Korea, for example, many people have the deficiency but still drink heavily. Researchers found that these drinkers develop a form of esophageal cancer six to ten times more often than those without the deficiency. Esophageal cancer is one of the deadliest cancers. It can be treated when found early, but once it grows the chances of survival drop sharply. The researchers estimate that at least five hundred forty million people have the deficiency, about eight percent of the world's population. Philip Brooks is a researcher at the National Institute in the United States. He says it is important to educate people about the link between the alcohol flushing effect and esophageal cancer. He says doctors should ask East Asian patients about their experiences with facial flushing after drinking alcohol. Those with a history of it should be advised to limit their alcohol use. They should also be warned that cigarette smoking works with the alcohol in a way that further increases the risk of esophageal cancer. Question: Esophageal cancer is one of the deadliest cancers because _ . Options: A: it can't be treated at all B: it is hard to be discovered early C: people are usually addicted to alcohol D: it is hard to cure once it has developed
D

Read the article and select the best answer. Article: Ever walked to the shops only to find, once there, you've completely forgotten what you went for? Or struggled to remember the name of an old friend? For years we've accepted that a forgetful brain is as much a part of ageing as wrinkles and grey hair.But now a new book suggests that we've got it all wrong. According to The Secret Life of the Grown-up Brain, by science writer Barbara Strauch, when it comes to the important things, our brains actually get better with age.In fact, she argues that some studies have found that our brain hits its peak between our 40s and 60s--much later than previously thought. Furthermore, rather than losing many brain cells as we age, we retain them, and even produce new ones well into middle age.For years it's been assumed that brain, much like the body, declines with age.But the longest, largest study into what happens to people as they age suggests otherwise. This continuing research has followed 6,000 people since 1956, testing them every seven years.It has found that on average, participants performed better on cognitive tests in their 40s and 50s than they had done in their 20s.Specifically, older people did better on tests of vocabulary, verbal memory (how many words you can remember) and problem solving. Where they performed less well was number ability and perceptual speed--how fast you can push a button when ordered.However, with more complex tasks such as problem-solving and language, we are at our best at middle age and beyond.In short, researchers are now coming up with scientific proof that we do get wiser with age. Neuroscientists are also finding that we are happier with ageing.A recent US study found older people were much better at controlling and balancing their emotions.It is thought that when we're younger we need to focus more on the negative aspects of life in order to learn about the possible dangers in the world, but as we get older we've learned our lessons and are sub-consciously aware that we have less time left in life: therefore, it becomes more... Question: The continuing research has found older people perform better on _ . Options: A: vocabulary tests B: number ability C: perceptual speed D: body balance
A

Read the article and select the best answer. Article: When discussing about friends, I desire those who will share my happiness, who possess wings of their own and who will fly with me. I seek friends whose qualities illuminate me and train me up for love. It is for these people that I reserve the glowing hours, too good not to share. When I was in the eighth grade, I had a friend. We were shy and "too serious" about our studies when it was becoming fashionable with our classmates to learn acceptable social behaviors. We said little at school, but she would come to my house and we would sit down with pencils and paper, and one of us would say:" Let's start with a train whistle today." We would sit quietly together and write separate poems or stories that grew out of a train whistle. Then we would read them aloud. At the end of that school year, we, too, were changing into social creatures and the stories and poems stopped. When I lived for a time in London, I had a friend. He was in despair and I was in despair. But our friendship was based on the idea in each of us that we would be sorry later if we did not explore this great city because we had felt bad at the time. We met every Sunday for five weeks and found many excellent things. We walked until our despairs disappeared and then we parted . We gave London to each other. For almost four years I have had a remarkable friend whose imagination illuminates mine. We write long letters in which we often discover our strangest selves. Each of us appears, sometimes in a funny way, in the other's dreams. She and I agree that, at certain times, we seem to be parts of the same mind. In my most interesting moments, I often think: "Yes, I must tell...." We have never met. It is such comforting companions I wish to keep. One bright hour with their kind is worth more to me than the lifetime services of a psychologist , who will only fill up the healing silence necessary to those darkest moments in which I would rather be my own best friend. Question: In the eighth grade, what the author did before developing proper social behavior was to _ . Options: A: become serious about her study B: go to her friend's house regularly C: learn from her classmates at school D: share poems and stories with her friend
D