The food on the moon has come a long way from the freeze - dried bread to half - dried food. They have changed a lot in the past few years. And now US scientists want to grow vegetables in mini - greenhouses on the moon. Scientists say they are looking forward to a time when people on the moon or even Mars will be able to eat green and fresh vegetables. Paragon Space Development Corporation has shown people what it called the first step toward growing flowers - and finally food - on the moon. Paragon, which is a partner of NASA in experiments at the International Space Station, calls it a "Lunar Oasis  " This is a closed greenhouse placed in a metal box. It is designed to safely land a laboratory plant on the moon surface, and protect it while it grows. The small greenhouse is to be sent up into space by Odyssey Moon Ltd, which takes part in the Google Lunar X Prize. This competition offers $ 20 million to any company which can send up, land and operate a lunar rover   on the moon surface. Leaders of Paragon say future testing of the "Lunar Oasis" will be driven by Odyssey's flight schedule, which will not happen until 2012 at the earliest. When it is sent up, the greenhouse will have the seeds   of cabbage inside it. Because they go from seed to flower in just 14 days, they can complete their life cycle in a lunar night. "Growing plants on the Moon or Mars seems so far away, but it is important that we do this research now," Paragon president Jane Poynter said. "It takes a long time to do a lot of research." What would be the best title for the passage? A) Exploring the Moon and the Mars B) Making Use of the Lunar Rover C) Researching Fresh Food on the Moon D) Seeking the Living Things on the Moon
C


Can you imagine that several hundred years ago, tomatoes were seen as _ food in Europe? What made Europeans believe this was John Gerard's publication of Herbal in 1597. Gerard wrote: "The leaves and stalks of the tomato plant are toxic." Undoubtedly, Gerard's opinion was based on a misunderstanding of tomatoes. But his opinion was widely spread in Britain and North America for over two hundred years. In the late 1700s, a lot of Europeans held more fears for tomatoes. A nick name for the fruit was "poison apple" because it was believed that aristocrats  got sick and died after eating them. But the actual reason was the pewter plates they used. Since tomatoes are high in acidity, when placed on the plates, the lead  in the plates would dissolve . This caused many deaths. Unluckily, no one knew this at that time. So the innocent tomatoes were picked as the killer. Today, more than one and a half billion tons of tomatoes are produced every year around the world. Tomatoes are cooked in various ways. This healthy and tasty food finally wins its innocence  back. Which of the following can be the best title for this passage? A) Europeans' fears for tomatoes B) History of tomato planting C) Why do people eat so many tomatoes D) How did the tomato prove its value
A


Q: We are already familiar with computers--computers work for us at home, in offices and in factories. But it is also true that many children today are using computers at schools before they can write. What does this mean for the future? Are these children lucky or not? Many people who do not know about computers think of them as machines that children play with. They worry that children do not learn from experience but just from pressing a button and that this is not good for them. They think that children are growing not knowing about the real world. But people who understand more about computers say that computers can be very good for children. A computer can help them to learn about the real world more quickly, to learn what they want to learn and think for themselves. And for the future, don't we need people who can think clearly, who know how to get information quickly and use it well? What do you think? "To be familiar with" means to   _  . A) know nothing B) know about C) dislike D) like
A: B


Question: Dear Mr. Wolfson, The purpose of this letter is to inform you of one of our citizens who I believe should receive some special recognition for dedicated   community service. The person I recommend is Elizabeth Samuelson. I believe you know her in your position as volunteer coordinator  . I have known Elizabeth for more than 20 years as both a friend and a neighbor. During that time I have seen her work tirelessly on scores of community projects and committees. As far as I know, she has never received any kind of recognition from the community for her work. I believe she should be given some sort of special recognition. Just last year alone, she worked on at least six different community projects including the Park Renewal Project and the Heritage Homes FundRaising Banquet. In addition, she is a weekly driver for the MealsonWheels program and she visits patients in the care unit on a regular basis. Whenever a project or committee needs her, she will put herself into the work wholeheartedly. I'm sure that if you check with a few of your staff members who have been there over the years, they will confirm Elizabeth's community service record and probably be able to add many examples to the few I have given here. By the way, Elizabeth has no idea that I am writing this. She is a humble   person, and if she were aware of it, she would not allow me to send it. I thought about writing such a letter about her a number of times in the past but just never took action. Then last week, I noticed in the paper that you sponsor   an annual dinner at which dozens of awards are given out to people with much less community service than Elizabeth. In fact, I checked with her and she has never even been invited to that annual event! I urge you to correct that omission   now and take action to see that Elizabeth is properly recognized for her many years of silent but outstanding service to this community. Sincerely, Linda Sullivan Linda is Elizabeth's   _  . A) friend and colleague B) neighbor and leader C) neighbor and worker D) friend and neighbor
Answer: D


Q: Human beings have a natural desire to explore the unknown. People with a strong interest in space like to say it is the last place left to explore. But scientists are warning that space exploration for long periods is not going to be easy. They say the human body is not designed to stay in space over an extended period. The New York Times recently published a report about scientists who are preparing astronauts for a trip to the Moon. The newspaper said the scientists want to make sure that their crews return home in good health. But there are many problems to be solved before people are ready for long trips to the Moon, an asteroid or even the planet Mars. Humans developed on a planet with a surface that is more than 70 percent water. Our bodies are also about 70 percent water. When there is no gravity that water moves up toward the head, raising pressure in the skull. Arms and legs grow weaker at what is called zero gravity because they no longer need to push against the force of gravity. Five years ago, astronauts who spent weeks in space reported a change in their eyesight. These astronauts were members of the crew on the International Space Station. Research showed a change in the shape of their eyes. Normally-round eyeballs had become flat during time in space. The research also showed that the right eye was affected more than the left, and that men were more affected than women. Scientists could not find an explanation for the differences. Bone loss was one of the problems first reported by astronauts returning to Earth after longer stays in space. So scientists designed exercise machines to use on the space station. Tests showed that the exercise equipment helped space travelers keep their bones almost as strong as when they left Earth. There are other health issues for astronauts who spend a long time in space. They may have problems eating and sleeping. But the biggest health issue is exposure to radiation. On Earth, human beings are protected by the atmosphere and the planet's magnetic field. In... What will happen to human bodies in space? A) Arms and legs grow stronger at what is called zero gravity B) Blood moves up toward the head. C) Pressure in the skull will be raised. D) All of the above.

A: C