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Reader's Bank_Level 4_Unit 11                                    Reading Text

Chimpanzees are very smart animals. They can do many things that humans can do. But do they know what right and wrong are? Scientists wanted to find out. They did a special test with two chimpanzees. The chimpanzees had to do the same task: giving a toy to a person. After they finished, one chimpanzee got a yummy fruit as a reward. The other chimpanzee only got a plain vegetable. The chimpanzee that got the plain food felt sad. It did not want to do the task anymore. This shows that chimpanzees have a sense of fairness. So don’t treat them badly just because they are animals. Remember that they feel the same emotions that people feel.

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Leonardo da Vinci was a great artist. He started painting in a very special way. One day, his teacher fell sick. He asked Leonardo to finish a painting that was left incomplete. Leonardo said, “I can’t! I’m not good enough to paint like you.” His teacher replied, “Please try! I can’t paint anymore. I believe in you.” On the first day, Leonardo sat quietly in front of the unfinished painting. He closed his eyes and whispered a prayer, “Please help me make this picture good for my kind teacher.” His heart was filled with strong will and hope. Many weeks later, Leonardo was all done! The teacher looked at the picture very closely. He said, “Wow, my son, this is beautiful! I won’t paint anymore.”

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Did you know that the color of food can change how it tastes? For example, if tomato ketchup is blue instead of red, people will think it tastes bad. A dessert on a white plate seems sweeter than one on a black plate. Sound also affects the taste of food. For instance, when people listen to soft music, they think their food tastes sweeter. Some cafes play soft music for this reason. It helps them use less sugar in their drinks. Why are color and sound important for taste? Your tongue does not decide taste alone. In fact, it is your brain that decides what you taste. It puts together information from your eyes, ears, nose, and touch. Then, it figures out what the taste is.