Problem: Write a multi-choice question for the following article, with the given choices and answer: Article: Many people believe the glare from snow causes snow-blindness. Yet, dark glasses or not , they find themselves suffering from headaches and watering eyes, and even snow-blindness, when exposed to several hours of "snow light". The United States Army has now determined that glare from snow does not cause snow-blindness in troops in a snow-covered country. Rather, a man's eyes frequently find nothing to focus on in a broad expanse of barren snow-covered terrain . So his gaze continually shifts and jumps back and forth over the entire landscape in search of something to look at. Finding nothing, hour after hour, the eyes never stop searching and the eyeballs become sore and the eye muscles ache. Nature eases this irritation by producing more fluid which covers the eyeball. The fluid covers the eyeball in increasing quantity until vision blurs , then is obscured , and the result is total, even though temporary, snow-blindness. Experiments led the Army to a simple method of overcoming this problem. Scouts ahead of a main body of troops are trained to shake snow from evergreen bushes, creating a dotted line as they cross completely snow-covered landscape. Even the scouts themselves throw lightweight, dark colored objects ahead on which they too can focus. The men following can then see something. Their gaze is arrested. Their eyes focus on a bush and having found something to see, stop scouring the snow-blanketed landscape. By focusing their attention on one object at a time, the men can cross the snow without becoming hopelessly snow-blind or lost. In this way the problem of crossing a solid white terrain is overcome. Options: A concentrating on the solid white terrain B searching for something to look at in snow-covered terrain C providing the eyes with something to focus on D covering the eyeballs with more fluid Answer: C providing the eyes with something to focus on Question:

A: Snow-blindness may be avoided by _ .

Problem: Write a multi-choice question for the following article, with the given choices and answer: Article: One summer my friend and I decided to go to Italy for a holiday and we decided to travel there without going through a travel agency. You know, you would be submerged in crowds of tourists and lose lots of opportunities to get familiar with the country more closely. We started to think over our trip and managed to come up with a free tour of Italy. The trip was not very long but it was still very impressive. We look forward to going there again! Of course, we spent lots of time arranging the trip, but it was well worth it! Of course I was afraid that something would go wrong and I was especially anxious about my visa, but everything went quite smoothly in the end. ks5u The most difficult part was getting a visa without an invitation. In the Italian consulate , one must hand in some official paper proving that one has a hotel booked for oneself in order to get the visa. Then we had to solve the ticket problem. Airlines often sell cheap tickets and we bought ours far in advance. The next step was to book a hotel. We finally booked a hotel about thirty km away from the heart of Rome and it was the perfect choice for our trip. Every day we took a train that carried us to the heart of Rome. Our big house, which was surrounded by the forest, was a rare girl for the fresh air and silence, beautiful views, hospitable hosts, comfortable living conditions delighted us to no end. Besides this, we were very lucky that our mistress was Russian. She gave us a lot of advice that was of great use. She told us what transport to choose and where the best places to go. Don't be afraid to arrange your trip by yourself. It's not difficult! The only thing I'll say right now is that we really enjoyed traveling by ourselves. We walked with a map and a guide-book to wherever we wanted and we even met some of our fellow countrymen on the way just two or three times. So, if you're also planning a "single" trip, don't forget to take a Russian-Italian phrasebook as people in Italy prefer to speak in their native tongue. Options: A enjoys traveling everywhere in the world B likes being accompanied by tour guides C advises us to arrange trips by ourselves D met with a lot of his countrymen in Italy Answer: C advises us to arrange trips by ourselves Question:

A: From the text we can know the author _ .

Problem: Write a multi-choice question for the following article, with the given choices and answer: Article: Just five minutes of exercise a day outdoors can improve mental health, according to a study. Researchers from the University of Essex, UK have found that as little as five minutes of a "green activity" such as walking, gardening, cycling or farming could help to improve mood and increase self-esteem . Many studies have shown that outdoor exercise can reduce the risk of mental illness and improve a sense of well-being, but the new study, led by Jules Pretty and Jo Barton, was the first to determine how much time needed to be spent on green exercise for the benefits to show. Barton and Pretty looked at data from 1,252 people of different ages, genders and mental health status taken from 10 studies in Britain. They analyzed their different outdoor activities including walking, gardening, cycling, fishing, boating, horse-riding and farming in locations such as a park, garden or nature trail . They found that the mental health changes were seen after just five minutes. With longer periods of time exercising in a green environment, the positive effects were more apparent. Looking at men and women of different ages, the researchers found the health changes were particularly strong in the young and the mentally ill. Green and blue A bigger effect was seen with exercise in an area that also contained water - such as a lake or river. "This is because historically we are drawn to water to survive and it is in our genetic make-up to be at one with nature," the researchers wrote in their report. Pretty said those who were generally inactive, or stressed, or with mental illness would probably benefit the most from "green exercise". "Employers, for example, could encourage staff in stressful workplaces to take a short walk at lunchtime in the nearest park to improve mental health." He also said exercise programs outdoors could benefit youth offenders. Options: A Physical well-being. B Mental illness. C Outdoor exercise. D Harmony with nature. Answer: C Outdoor exercise. Question:

A: What is the main problem discussed in this article?

Problem: Write a multi-choice question for the following article, with the given choices and answer: Article: Last week I visited one of my old neighborhoods in Washington D.C.I had not been there for twenty years and as I walked along the street, my mind was flooded by memories of the past. I saw the old apartment building where I had lived and the playground where I had played. As I viewed these once familiar surroundings, images of myself as a child there came to mind. However, what I saw and what I remembered were not the same. I sadly realized that the best memories are those left untouched. My old apartment building, as I remember, was bright and alive. It was more than just a place to live. It was a movie house, a space station, or whatever my young mind could imagine. I would steal away with my friends and play in the basement. This was always exciting because it was so cool and dark, and there were so many things there to hide among. There was a small river in the back of the building. We would go there to lie in the shade of trees and enjoy ourselves. However, what I saw was completely different. The apartment building was now in disrepair. What was once more than a place to live looked hardly worth living in. The windows were all broken. The once clean walls were covered with dirty marks. The river was hardly recognizable. The water was polluted and the trees and flowers were all dead. The once sweet-smelling river now smelled terrible. It was really heartbreaking to see all this. I do not regret having seen my old neighborhood. However, I do not think my innocent childhood memories can ever be the same. I suppose it is true when they say, "You can never go home again." Options: A had been repaired B seemed unfit to live in C could hardly be recognized D looked dirty and smelt horrible Answer: B seemed unfit to live in Question:

A:
On his visit to his hometown, the writer found the old apartment building _ .