Read the following article and answer the question. Article: Napping after learning something new could help improve your memory...as long as you dream, scientists say. They found people who dream about a new task do it better on waking than those who do not sleep or do not dream. Volunteers were asked to learn the layout of a 3D computer maze so they could find their way several hours later. Those allowed to take a nap and who also remembered dreaming of the task, found their way to a landmark quicker. The researchers think the dreams are a sign that unconscious parts of the brain are working hard to process information about the task. Dr. Robert Stickgold of Harvard Medical School, said dreams may be a marker that the brain is working on the same problem at many levels. Study tips Co-author Dr. Erin Wamsley said the study suggests our non-conscious brain works on the things that it deem are the most important. "Every day we are gathering lots of information and new experiences," she said. "It would seem that our dreams are asking the question, "How do I use this information to inform my life?" The scientists say there may be ways to use this phenomenon for improving learning and memory. For example, students might be better studying hard before bedtime, or taking a nap after a period of afternoon study. Question: When is the best time for study? Answer:
OPTIONS:
- Before bedtime.
- After bedtime.
- Before taking a nap.
- In the afternoon.

Answer: Before bedtime.

Read the following article and answer the question. Article: Share Flat Happy Village big flat, 1 room ready for use immediately, with all necessary furniture and appliances. 3 minutes' walk to underground station, 2 blocks from shopping center, park view, $2100 including bills, female nonsmoker, no pet. Sara 25720836 or 10077809Moving Sale 2 armchairs, red/brown at $400 each; coffee table, black, wood, $800; oil painting, big, $900; Tianjin carpet, green, 3*7, $600; double bed, $500; mirror, big, square, $500; fridge, big double-door, $1000; old pictures, $140 each. Mr. Brown, Tel Weekend, 25216011, Weekday, 25245867 Part-time Lab Assistant Wanted Required by busy electronics company to help with development of computer, should have an electronic degree and some experience of working in an electronic lab. Hours 9:00am--1:00pm, Monday - Friday Salary 6,598 - 10,230 dependent on experience Letter of application to Mrs. G Chan NOVA ELECTRONICS, 45 Shanxi RD, Shanghai Question: From the above we can learn that the Happy Village flat _ . Answer:
OPTIONS:
- is near a park
- is beside the sea
- has no furniture
- can't be used now.

Answer: is near a park

Read the following article and answer the question. Article: What is the sky? Where is it? How bright is it? What lies above it? These questions are difficult to answer, aren't they? Is the sky blue? The sky has no color. We know that there is air around the world. When planes fly, they need air to lift their wings. Planes can't fly very high because the air gets thinner when they go up higher. If we go up about 1,200 kilometers from the earth, we'll find no air there. When we talk about the sky, we usually mean the atmosphere around the earth. It is like a very thick "cover" over the earth and keeps it warm. Without the "cover", the earth would be a very cold place and nothing could live on it. Looking up above us, you will see the blue sky with white clouds. It is usually light blue, but the sky would be dark blue if you go to the top of the highest mountains. And you will see fewer clouds between you and the sun. And if you sit in a spaceship high above the earth, there is no air at all. The sky would be so dark that its color would be black. Sometimes the sky doesn't look blue. When the sun rises and falls, you will see red, orange, and other colors in the sky. These are the most beautiful moments of the day. Now you may understand that we see colors because the air scatters the sunlight. Light travels through the air. Without air, there would be no light and no colors. Question: Which of the following is TRUE? Answer:
OPTIONS:
- There is little air without light and colors in the sky.
- The sky will look red, orange and other colors at noon.
- The sky has only one color when the sun rises and falls.
- The sky is dark blue if you go to the top of the highest mountains.

Answer:
The sky is dark blue if you go to the top of the highest mountains.