Q: Read the article and select the best answer. Article: What is the color1 of the universe? Astronomers had not answered this question, until two months ago. That is when two American astronomers reported on their study of all the light in the universe. They said that the universe would appear to the human eye to be a light greenish color1, called turquoise .   Karl Glazebrook and Ivan Baldry of Johns Hopkins University in Baltimore, Maryland, reported their finding in January. They presented the research at a meeting of the American Astronomical Society. They said that finding the color1 of the universe was not part of their serious scientific research. They did it for fun.   However, earlier this month, the scientists admitted to making a mistake. They said their finding was much more color1ful than it should have been. They now say the light from our universe is closer to white. It is more like a milky or creamy white color1.   Their study attempted to show what people might see if they could observe the universe from far away. The scientists found the average color1 by combining light from about two-hundred-thousand star systems. Their information came from an observatory in New South Wales, Australia.   These scientists and color1 engineers attempted to reproduce the result. Mark Fairchild of the Rochester Institute of Technology in New York was the first person to identify a mistake. He discovered a mistake in the computer software program used by the Johns Hopkins scientists. When the mistake was corrected, the results changed. The new color1 of the universe is much less color1ful. It is very close to white. The scientists have apologized for the mistake. They are now working with the Rochester Institute of Technology to produce more images of the color1 of the universe. They also asked for suggestions for a name for the new color1 of the universe. Question: We can infer from the passage that   _  . Options: A: .the color1 of the universe was not the main problem the scientists studied for. B: the color1 of the universe is turquoise, but now it's turned into milky white         gradually. C: The new color1 of the universe hasn't been named now. D: The mistakes of people's eyes leads to the mistakes of observation result.
A: C


Q: Read the article and select the best answer. Article: Chinese star Yao Ming has retired. Yao made it official Wednesday, telling a news conference that a series of foot and leg injuries forced him to end his playing career at the age of 30. "I will formally end my career,'' said Yao, who became a household name in China before starting his NBA career with the Houston Rockets in 2002. Yao played eight seasons in the NBA. "Today is an important day for me and holds a special meaning for both my basketball career and my future,'' Yao said. "I had to leave the court since I suffered a stress fracture  in my left foot for the third time at the end of last year. My past six months were a painful wait. I have been thinking about my future over and over. Today I am announcing a personal decision, ending my career as a basketball player and officially retire. But one door is closing and another one is opening.'' Yao said he would return to work with his former Chinese team, the Shanghai Sharks, with the possibility of becoming general manager. He already owns the club and wants to contribute more. "My playing career started with the club. I hope I can do something for it,'' Yao said. He later appeared with his family on the stage to the applause and cheers of the crowd. He thanked a lot of people -- his family, former coaches, even players like Shaquille O'Neal -- "for making me a better player.'' Rockets general manager Daryl Morey was among those attending the farewell  conference Wednesday. Morey made the long trip from Houston. Morey said 20 hours on planes was tiring but "I would be sorry if I wasn't here." "It's a big moment,'' Morey added. "Yao had a sense of humor, a great attitude and sense of responsibility. I hope we can continue his culture in the NBA.'' Question: Yao Ming has retired from basketball because of   _  . Options: A: his age B: his bad conducts on the court C: his foot and leg injuries D: his poor health
A: C


Q: Read the article and select the best answer. Article: Are you interested in travelling in the dangerous mountains in America? Here are some tour plans for you to choose. Tour 1  Garland Valley Bring your drink and lunch for this walk in a beautiful area of the Blue Mountains. Garland Valley is close to the town of Garland but is part of the National Park. Many wild animals live in this area, including many rare birds. This is a great walk for bird-lovers. The trip lasts four hours. Book in advance. Cost: $ 15 When: May 8, May 15 Tour 2  Flashlight Adventure Put on your warm clothes, bring a flashlight and a pair of glasses, and come for a night walk along the Dungog Valley. A guide will lead the tour. Many of the animals you will see on this trip can only be seen at night. The guide will tell you about the lives of the animals you see. Numbers are strictly controlled on night trips, so be sure to book early. This walk lasts two and a half hours. Cost: $ 12 When: May 8, May 15, May22 Tour 3 Black Bear Count There have been fires in this area in the last few years and the Office of the National Park is not sure how many black bears are still living. Some bears have been seen since the fires, and the Office has asked for young people to help count them. The entire trip will last three hours. Remember to book in advance. Cost: Free When: May 8 Advice to be followed: Please bring enough water and food for all walks. Wear good walking shoes---no high heels. Wear a hat for day walks. Dress warmly for night walks. Children must be with an adult. Make sure your flashlight works well and bring extra batteries for night walks. Follow all instructions from guides during the walks. The mountains are so dangerous that you have to care. Question: What is the best title for the passage? Options: A: Some Adventure Tours in America B: Hunting around the Great Mountains C: Interesting Tours in Different Parks D: Discovery Tours in the Mountains
A: D


Q: Read the article and select the best answer. Article: Dad was lying in the hospital weakly, but his smile was as sure as ever . It was another attack of lung illness. My husband and I stayed with him for the weekend but had to return to our jobs on Monday. Local relatives would help Dad get home from hospital and look after him. But I longed to be able to let him know that we cared about him too, even when we weren't with him. Then I remembered a family tradition when our children were small. When leaving our grandparents' home after a visit, each child would write a love note to their grandparents. We hid notes in a box, under a hairbrush or next to the phone or even in the microwave oven. For days, our grandparents would smile as they discovered these reminders of our love. So as I tidied Dad's kitchen and made up a bed for him downstairs in the living room, I wrote some notes. Some were practical, "Dad, I put the food in the fridge so it wouldn't spoil". Some expressed my love, "Dad, I hope you will sleep well in your new bed." Most notes were downstairs where he would stay for several weeks until he recovered strength, but one note I hid upstairs under his pillow, "Dad, if you have found this note, you must be feeling better. We are so glad!" Just like his medicine strengthened him physically, these "emotional vitamins" would improve his spiritual health. Several weeks later, in one of our regular phone calls, I asked Dad how he was doing. He said, "Pretty good. I just found your note under my pillow upstairs!" Question: The children hid notes in their grandparents' home in order to  _ Options: A: follow a family tradition B: play jokes on their grandparents C: show their gifts to their grandparents D: make their grandparents feel pleasantly surprised
