阅读理解。

　　In general(一般来说), people talk about two groups of colors：warm colors and cool colors．Scientists think that there are also two groups of people：people who prefer warm colors and people who prefer cool colors．

　　The warm colors are red, orange, and yellow．Where there are warm colors and a lot of light, people usually want to be active．People think that red, for example, is exciting．Sociable(善交际的)people, those who like to be with others, like red．The cool colors are green, blue, and violet．These colors, unlike warm colors, are relaxing．Where there are cool colors, people are usually quiet．People who like to spend time alone often prefer blue．

　　Red may be exciting, but one scientist says that time seems to pass more slowly in a room with warm colors than in a room with cool colors．He suggests that a warm color, such as red or orange, is a good color for a living room or restaurant．People who are relaxing or eating do not want time to pass quickly．Cool colors are better for offices or factories if the people who are working there want time to pass quickly．

　　Scientists do not know why people think some colors are warm and other colors are cool．However, almost everyone agrees that red, orange, and yellow are warm and that green, blue, and violet are cool．Perhaps warm colors remind people of warm days and the cool colors remind them of cool days．Because in the north the sun is low during winter, the sunlight appears quite blue．Because the sun is higher during summer, the hot summer sunlight appears yellow．

阅读理解

　　A clam(蚌)decided to take a rest on the bank of the River Yi．When the clouds passed, he felt cool in their shadow．When the sun returned, he felt warm．It was a good time to daydream, and so he did．

　　From above, a bird saw the clam and flew down and gave it a good peck(啄)．The clam was frightened and closed his shell tight, catching the bird's beak．

　　“Remove your beak at once,”ordered the clam．But the bird was stubborn, though she was able to pull out her beak, she refused．

　　“I will not remove my beak until you open your shell,”the bird mumbled．Like the clam, she found it was difficult to speak clearly under the situation．Of course, the clam was not about to listen to the bird and open his shell．But the bird threatened(威胁),“Open your shell or you'll be a dead clam．”“Remove your beak at once,”returned the clam．

　　“Open it!”

　　“Remove it!”

　　“Open it!”

　　The two went back and forth like this for several hours．But neither of them would follow the other's orders first, they stayed in such a state until a young man who happened to come here and carried two of them off for dinner!