Monkeys are
2 . On a summer day in 1948, a Swiss (瑞士的) man named George de Mestral took his dog for a walk in the mountains. After they came home, George discovered that he and his dog were both covered with burrs (带芒刺的小果实).
As an engineer, George naturally began to wonder how exactly the burrs stuck to his dog and his clothes. Then he paid careful attention to looking at them under a microscope (显微镜). He found that the burrs had very tiny hooks (钩子), which allowed them to catch on to things like clothes. George realized that he could use this finding to create a new way to fasten (扣紧) things.
As so often, it is a very long journey from the first idea to the final product. It was easy to find materials that could stick together, but finding materials that would continue to do so after years of use was not easy. George tested a very large number of different materials and production methods. After years of research and work, he invented what is known today as Velcro (魔术贴). In 1955 George started Velcro Industries to turn his idea into a product. In a few years, the product became popular around the world.
Today Velcro is used everywhere. It’s used in backpacks, jackets, wallets, children’s toys, etc. It even turns up in places you wouldn’t expect. For example, Velcro has been used by NASA for astronauts’ suits. The product was also used to hold the heart together during the very first artificial heart transplant (人工心脏移植).
Complete the summary of the passage above with one word for each blank.George de Mestral was an engineer from Switzerland. One day in 1948, after coming back from the mountains, he found some burrs on his clothes and his dog. Then he It was hard to find |
—________
| A．Have a good time. | B．Have a point. | C．It’s up to you. |
B: Sure. I’m an artificial intelligence (人工智能). I’m happy to provide help and answers for people.
A: Hmm. How do you learn?
B: I learn by processing a huge number of data (数据).
A: That’s amazing!
B: No, never. I don’t forget in the same way humans do. But if the data is lost or broken, I may not be able to get the right information any more.
A:
B: Yes, I do. I’m not perfect, but I am always learning and improving.
A: I believe you will be better.
B: My only “dream” is to keep learning and serving people better in the future.
A: That’s a cool dream! Thank you.
| A．Who are you? |
| B．What’s your dream? |
| C．Do you forget things? |
| D．Do you make mistakes? |
| E．I can think like a human. |
| F．May I know who you are? |
| G．If you have any questions, feel free to ask me. |
—The most important rule ________ you should follow is communicating.
| A．who | B．which | C．that |
| A．fifties | B．fiftieth | C．fifty |
| A．though | B．unless | C．since |
| A．meaningful | B．comfortable | C．educational |
