Unit3 Presenting ideas & Reflection 同步习题检测 -2025-2026学年外研版英语八年级上册

Unit 2 Presenting ideas 同步习题 一、阅读理解 Alfredo Moser is a Brazilian worker who is skilled at repairing machines. His wife says her husband has always been handy (手巧的) at home and made tables and chairs. Alfredo has invented a way of lighting his house during the day without electricity. He has been using plastic bottles filled up with water and a little bleach (漂白剂) to provide dark rooms with light for many years. And the idea has now spread across the world. It is predicted that his lighting system, which works using refraction (折射) of sunlight, will be fitted in over a million homes by the end of this year. Alfredo used normal plastic bottles that are often thrown away. The secret of the liquid in the bottles is the bleach added to water, which stops it turning green in the sunlight. Mr. Moser drills a hole in a roof tile (在屋瓦上钻洞) and then pushes the bottle in from below, keeping the bottle in place with polyester resin (聚酯树脂). Depending on the strength of sunlight, the light fills his home, and the bottles are just like electric bulbs of between 40 and 60 watts (瓦特). Alfredo came up with the idea for his “Moser light” during one of the blackouts in Brazil in 2002. He said only factories had power in his home city, in southern Brazil during the energy shortage. The local supermarket and his neighbors’ houses are utilizing Moser lights. It is enjoyed by many for fun and exercise. It has made a few dollars, but his invention has not made him a rich man. Now a great number of people admire what he is doing! ( )1. Why does Alfredo put a little bleach into the bottle? A. Because the bottle can give more light. B. Because the bleach can keep the bottle in a roof tile. C. Because the bleach can protect water from turning green. D. Because the bleach can reflect the sunlight. ( )2. Which of the following is TRUE according to the passage? A. People can use Moser lights only at night. B. Moser lights give too poor light. C. Moser’s bottles use electricity to light the room. D. Moser’s light is a green idea. ( )3. What does the underlined word “utilizing” in the passage probably mean? A. Selling. B. Using. C. Taking. D. Locking. ( )4. What can we learn from the passage? A. Alfredo’s lights will be more and more popular. B. Nobody will buy Moser lights in the future. C. Alfredo won’t repair machines any more. D. Alfredo’s invention will bring him a lot of money. Reflection—回归教材 一、根据汉语提示，用单词的正确形式填空 Easton LaChappelle, a 14-year-old student, stood beside his work at a science 1. ______ (展览会). It was a robotic arm. He built it out of plastic 2. ______ (块) and fishing line. “Hello,” said a girl with an 3. ______ (人造的) arm, as she shook hands with Easton’s work. This was the first time Easton met Jenny, a girl with a special condition. She was born without an arm. Her artificial arm was just a simple hook, but it 4. ______ (价格为) $80,000. What’s worse, children like her grow quickly and need new arms all the time. “It blew me away! I built my arm for only $300,” thought Easton. “I must 5. ______ (帮助) a hand to people like her.” After the fair, Easton’s room became a lab. He stayed there all day. He always tried to improve his work. For his 16th birthday, Easton got a 3-D 6. ______ (打印机). And with it, he invented an artificial arm. It was able to move with 7. ______ (大脑) signals of the user. But it wasn’t good enough yet: the arm weighed 3.6 kilograms. It was too heavy for a child. Easton kept working on it. He enjoyed 8. ______ (解决) problems one after another. And finally he hit on success at age 23. His design only weighed 0.5 9. ______ (千克) and cost around $500! Easton’s invention has helped many children. He didn’t want to make money from it. He decided to post his design online, for free! People can 10. ______ (下载) the design and make an artificial arm with their own 3-D printers! What a helping hand! 二、语法填空 阅读下面短文，在空白处按要求填入适当的单词或括号内单词的正确形式。每空1个单词。 Albert Einstein once said, “I have no special talents. I am only 1. ______ (passionate) curious.” The greatest inventions in history would be impossible without curiosity. Curiosity can bring new discoveries. Benjamin Franklin is a great example. He was drawn to 2. ______ (electric) and had a deep curiosity about its nature. He did lots of research to understand it. For example, he flew a kite during a storm. His curiosity led him to invent 3. ______ (冠词) lightning rod. This invention protects buildings from lightning. Curiosity can also make people brave. Just look at Wan Hu, the Ming Dynasty pioneer of space 4. ______ (explore). He was so curious about space 5. ______ (连词) he invented a “flying chair”! He lost his life while 6. ______ (test) this invention. Despite the 7. ______ (fail), his curiosity gave future explorers ideas. People learnt from his example, and created safer ways to explore space. But curiosity is more than just 8. ______ (take) risks. It also 9. ______ (drive) people towards certain goals. Zhang Heng, a Chinese scientist and inventor, was curious about the world: how did everything in the world move? He spent years studying the sky and the earth. Finally, he drew China’s first star map, and invented the first earthquake detector. His curiosity continues to influence scientists today. As Jacques Cousteau said, “What is a scientist after all? It is a curious man looking 10. ______ (介词) a keyhole, the keyhole of nature, trying to know what’s going on.” Curiosity is the key. It opens one door after another for us to discover a new world. 答案 Presenting ideas 一、1—4 CDBA 二、1. first 2. inventor 3. a 4. divided 5. team’s 6.  At 7. play 8. Although/Though 9. are 10. heroes 7. Reflection—回归教材 一、1. fair 2. blocks 3. artificial 4. cost 5. lend 6. printer 7. brain 8. fixing 9. kilograms 10. download 二、 1.  passionately 2. electricity 3. the 4. exploration 5. that 6. testing 7. failure 8. taking 9. drives 10. through 学科网（北京）股份有限公司 $