10 나무들의 신기한 의사소통 방법

Reader's Bank_Level 7_Unit 04                                    Reading Text

Can you imagine a tree that talks? Of course, trees cannot speak like people do. However, some trees can communicate in their own special ways. For instance, when a willow tree is attacked by insects, it sends out a chemical signal. This signal is a strong scent of freshly cut grass. Other willow trees in the area catch this scent and sense that insects are coming. When this happens, they quickly make a chemical in their leaves. This chemical helps drive the insects away.

Similarly, poplars also use a chemical signal. They release a warning scent when caterpillars invade. The scent resembles a citrus scent. Then, nearby trees detect the scent and make chemicals to protect themselves. For these trees, their smell is a way to communicate and protect themselves from enemies.

11 망치를 든 철학자, 니체

Friedrich Nietzsche was a famous thinker from Germany. People called him the philosopher with a hammer. Why? He wanted to break old ideas. He said, “God is dead.” This made many people think about what they believe. This quote was important because it came when many people were starting to believe in Charles Darwin’s idea of evolution. Darwin said that humans did not come from God but changed from tiny living things. This shift in thinking happened alongside many new inventions that were changing the world.

Nietzsche believed these changes made people think for themselves. He wanted them to create their own beliefs instead of just following old traditions and religion. With old values losing their power, Nietzsche saw a chance for people to build something new. Because of this, new styles in art and writing began to appear. Painters used bright colors and strange shapes to show strong feelings. Writers explored what happens in our minds.

Nietzsche’s challenge to old beliefs helped shape the modern world and how people think today.

12 좋은 칼로리, 나쁜 칼로리

Are two foods with the same number of calories equally nutritious? The answer is no. Let’s compare a sweet potato with a soft drink.

What is the difference between 100 calories of sweet potato and 100 calories of cola? Sweet potatoes provide important nutrients, like carbohydrates and vitamins. When you eat 100 calories of sweet potato, your body uses the nutrients for energy. It also gives you fiber, which helps with digestion. Cola, on the other hand , has almost no nutrients. It is mostly water and sugar. If you drink 100 calories of cola, your body stores most of the sugar as fat. This can cause weight gain and other health problems.

Knowing your daily calorie intake is helpful. But calories are not the only factor to consider. You should also think about how they affect your body. Instead of just counting calories, focus on the nutrients in your food. Try to choose healthy foods. Eat a balanced diet. Making smart choices will help you stay healthy.