Advice to "sleep on it" could be well founded, scientists say. After a good night's sleep a problem that couldn't be solved the night before can often appear more manageable. Researchers at the University of Luebek in Germany have designed an experiment that shows a good night's sleep can improve insight and problem-solving ability. "If you have some newly-got memories in your brain, sleep acts on these memories and restructures them, so that after sleep the insight increases," said Dr Jan Born, a neuroscientist, at the University. To test the discovery, they taught volunteers two simple rules to help them turn a string of numbers into a new order. There was also a third, hidden rule, which could help them increase their speed in solving the problem. The researchers divided the volunteers into two groups: half were allowed to sleep after the training while the rest were forced to stay awake. Dr Jan Born and his team noticed that the group that had slept after the training were twice as likely to figure out the third rule as the other group. "Sleep helped," Born said in a telephone interview . The important thing is that you have to have a memory description of the problem you want to solve in your brain and then you sleep, so it can act on the problem." But Born admitted that he and his team don't know how restructuring of memories occurs or what controls it. Pierre Maquet and Perrine Ruby of the University of Liege in Belgium said the experimental evidence supports the suggestion that sleep can help develop creative thinking. Although the role of sleep in human creativity will still be a mystery, the research gives people good reasons to fully respect their periods of sleep, they added. How did Jan Born and his team carry out the experiement ? A) Through comparison. B) Through interview. C) Trough talking D) Through imagination.
A
(Question)
Where to go in September Planning a holiday next month? We pick four great trips for September. Sicily September is the loveliest month of the year to visit Sicily. It's the perfect time, for the sea is still warm and there are fewer crowds. Besides, the weather is pleasant enough to walk around enjoyable, sandy-coloured towns without working up too much of a sweat. In addition, there are food festivals. Lyon Lyon perhaps has more attractive restaurants per square kilometre than anywhere else in Europe. That alone is reason to visit, but _ . The largest preserved Renaissance area in Europe, home to the Lumiere brothers, a centre for fashion designers, Roman ruins and a changing arts scene. The only thing Lyon hasn't got many of is tourists. Visit mid-September and you'll hit the launch of the 11th Biennale of contemporary art when 70 artists from around the world will exhibit their work. Isle of Skye On 10 September, the Celeste, a sailing boat covered in 60,000 inch-square mirror tiles , will stop in Portree where it will broadcast songs and stories from the island. Visitors can tune into the stories on Cuillin FM, while having a walk. The Celeste is the main point of Bonnie Boat , a whole day of art and events, including designer craft ,film screenings, dance performances, and sailing workshops. Iceland Travel there in September and you can join local farmers in annual ceremony of gathering up thousands of sheep from the mountains of south Iceland for winter. For experienced horse riders it is a great way to meet locals and enjoy a way of life that has little changed in centuries. A similar ceremony rounding up horses takes place at the end of the month in the northwest around the Vatnsdalur valley. If you are fond of art, you can pay a visit to _ A) Sicily and Isle of Skye B) Lyon and Isle of Skye C) Isle of Skye and Iceland D) Lyon and Iceland
(Answer)
B
Ques: Lake Forest High School Clubs Environmental Club Club members are provided opportunities to realize their goals of environmental service. The majority of projects are student-initiated. Last year's activities included: the LFHS Courtyard Garden upkeep, Bike to School Day with free cocoa and snacks, an "eat local" 100-mile dinner, recycling solutions for LFHS, beach cleanup through the Great Lakes Alliance, and Earth Week celebrations. Meetings: First Friday of the month in Room 5 at 7:00 a.m. Advisor: Ms Mary Beth Nawor, _ Peer Tutoring Students volunteer to help fellow students in improving their academic and organizational skills. Students tutor LFHS and middle school students on an individually scheduled basis. LFHS tutors must have proficiency in the academic area in which they wish to tutor, but middle school tutors only need general academic proficiency. Meetings: All tutoring is done on an individually scheduled basis. Advisor: Ms Kathy O'Hara, _ Young Idea Young Idea is LFHS's art and literary magazine. Students of all ages who love writing and art are encouraged to become part of the staff of this award-winning magazine. Young Idea encourages all students to submit art and literature works to the magazine, whether they are a part of the staff or not. From September to February, Young Idea meets on Thursdays after school in the Public Room to discuss the pieces that have been submitted to the magazine and provide feedback for the authors. Meetings: See above explanation. Advisor: Ms Debbie Zare, _ Scout Buddies Scout Buddies is a friendship club which helps build friendship among individuals with and without disabilities. Club members participate in a variety of social activities both within the school and in the community. Activities include organizing holiday parties in the school, bowling, going to the movies, and eating out in local restaurants. Meetings: Monthly meeting dates vary, but in Room 134. Advisor: Ms Donna Lovitsch, _ When is the staff of Young Idea most likely to meet? A) 6:30 p.m., August 11, Thursday B) 6:00 p.m., January 5, Thursday C) 7:30 a.m., November 17, Thursday D) 7:00 p.m., September 23, Friday
Ans: B
Question: Ways to Deal with the Problem of Energy There are different ways in which people try to deal with the problem of energy.One way is the greater production of common energy sources,such as coal,oil and gas.The trouble with these sources,however,is that they are not renewable. Another way is energy conservation ,which means using energy more efficiently.In some very cold countries people build special houses to save energy.They place materials between the inside and the outside of the walls of the house to keep the cold out and warmth in.The house is heated by the lights,the body heat of the people and the other equipment in it. Finally,renewable energy sources are used even though they are often expensive to develop.One form of these is geothermal energy.In certain parts of the world the temperature of the earth increases thirty degrees centigrate with each kilometer down.At six kilometers,therefore,it rises to nearly 200degrees.To get the heat,water is pumped down into the rocks and back up to the surface.Heat from the earth is already used in certain countries. At a place where the surface temperature is 15degrees centigrade,how deep do you have to dig so as to get a temperature of 75 degrees centigrade? A) One km. B) Two km. C) Three km. D) Four km.
Answer:
B