2025年秋外研版八年级英语上册期中考前押题--阅读理解专练（原卷版+解析版）

/ 让教学更有效 高效备考 | 英语学科 2025年秋外研版英语八年级上册期中考前押题--阅读理解专练 Passage 1 On January 20, 2025, a Chinese tech company named DeepSeek made a new AI called DeepSeek-R1. This smart program can solve math problems, write code, and answer questions like top models such as Open AI’s GPT-40, but it costs much less to build. The team spent only $5.58 million (1/70 of Open AI’s cost) and used 2,048 computer chips (芯片) for two months. This shows that good ideas can beat big money. DeepSeek-R1 learns by trying many times and getting better, like how students practice maths. Other AIs need lots of prepared examples, but R1 improves by itself. For example, in a global math test, it got 79.8% right, a little higher than Open AI’s model. A simple version of R1 can even run on low-cost computers, helping schools and small companies. DeepSeek-R1 is free to use and change. On its first day online, over 19,000 programmers all over the world started projects to study it. A German scientist said experiments (实验) with R1 cost $10 instead of $300 with other AIs. Even Meta (a famous U. S. tech company) top scientist said, “This kind of free AI could change the world.” US tech companies are worried. Meta plans to spend $65 billion more on AI research. Experts say China is catching up fast. A report in Nature magazine called R1 a “big step forward”, proving (证明) that smart ideas beat expensive tools. As a DeepSeek engineer said, “We want AI to be a friend, not something only rich people can use.” With R1, China shows the world that great things come from new ideas and hard work, not just money. 1．According to paragraph 1, DeepSeek-R1 is able to _____. ①write code ②work out math problems ③do experiments ④answer questions A．①②③ B．①③④ C．②③④ D．①②④ 2．It cost about _____ to build Open AI. A．$5.58 million B．$65 billion C．$390 million D．$300 3．The underlined words “it” in paragraph 2 refers to _____. A．GPT-40 B．Open AI C．Meta D．R1 4．The engineer says, “We want AI to be a friend, not something only rich people can use” to _____. A．explain why RI is free B．compare R1 with Meta's AI C．encourage students to study math D．show that expensive AI models are useless 5．The main purpose of the passage is to _____. A．explain how computer chips work B．introduce a low-cost AI model from China C．encourage students to become programmers D．compare Chinese and American AI technologies 【答案】1．D 2．C 3．D 4．A 5．B 【导语】本文通过对比和举例，介绍了深度探索R1这一低成本、高性能的人工智能模型，并强调了其在全球人工智能领域的重要性和创新意义。 1．细节理解题。根据“This smart program can solve math problems, write code, and answer questions”可知DeepSeek-R1能解答数学题，写代码，回答问题，故选D。 2．细节理解题。根据“The team spent only $5.58 million (1/70 of Open AI's cost) and used 2,048 computer chips (芯片) for two months.”可知Open AI的建立大约花费是$5.58,000,000的70倍，即大约三亿九千万美元，故选C。 3．词义猜测 ... ...