【弯道超车】Unit 4 Life on Mars 核心考点（单词+短语+句型+语法）-2026年春牛津译林版九年级英语下册精讲精练 (含答案解析)

/ 让学习更有效 新课备课备考 | 英语学科 / 让学习更有效 新课备课备考 | 英语学科 2026年春牛津译林版九年级英语下册核心考点精讲精练 Unit 4 Life on Mars 核心词汇 1. 太空与星球： Mars /mɑ z/ n. 火星 planet / pl n t/ n. 行星 solar system / s l s st m/ n. 太阳系 galaxy / ɡ l ksi/ n. 银河系 universe / ju n v s/ n. 宇宙 gravity / ɡr v ti/ n. 重力 atmosphere / tm sf (r)/ n. 大气层 oxygen / ks d n/ n. 氧气 surface / s f s/ n. 表面 2. 太空探索与技术： spacecraft / spe skrɑ ft/ n. 宇宙飞船 spacesuit / spe ssu t/ n. 宇航服 space station 空间站 satellite / s t la t/ n. 卫星 launch /l nt / v. 发射 orbit / b t/ v. 绕轨道运行 n. 轨道 explore / k spl (r)/ v. 探索 colony / k l ni/ n. 殖民地 settler / setl (r)/ n. 定居者 3. 环境与生存： environment / n va r nm nt/ n. 环境 condition /k n d n/ n. 条件 survive /s va v/ v. 生存 resource /r s s/ n. 资源 produce /pr dju s/ v. 生产 generate / d en re t/ v. 产生（光、热、电等） protect /pr tekt/ v. 保护 dangerous / de nd r s/ adj. 危险的 核心短语 in the future 在未来 by the year… 到……年为止 it takes (sb.) … to do sth. 花费（某人）……时间做某事 compare with/to… 与……比较 be similar to… 与……相似 be different from… 与……不同 be used to do sth. 被用来做某事 have to / need to 必须/需要 in order to 为了…… so that 以便，为了 be worth doing 值得做 as a result 结果 on the one hand… on the other hand… 一方面……另一方面…… 核心句型 1、描述火星环境： The gravity on Mars is only about 38% of that on Earth. It is much colder on Mars than on Earth, with an average temperature of -60°C. There is very little oxygen in the Martian atmosphere. The environment on Mars is extremely harsh for humans. 2、讨论太空旅行： The journey to Mars might take several months with current technology. Astronauts will have to face many challenges, such as space radiation and loneliness. A spacecraft will be launched to carry humans to Mars. 3、设想火星生活： In the future, humans might live in underground cities in order to protect themselves from radiation. Food and water will have to be produced on Mars itself. People would live in special domes where the environment is controlled. Life on Mars could be very different from life on Earth. 4、表达观点与推测： It is possible that humans will set up a base on Mars within this century. I think/ believe that exploring Mars is important for the future of humanity. However, some people argue that it‘s too expensive and dangerous. The main problem is that we don’t yet have all the necessary technology. 语法聚焦 本单元语法重点预计为 条件状语从句 和 宾语从句 的巩固，并大量运用 情态动词表推测。这些语法是进行科学假设和未来预测的基石。 1. 条件状语从句 功能： 讨论“如果……（在某种条件下），就会/可能……（发生某事）”，这是设想火星生活的核心句式。 真实条件句（可实现的条件）： 结构： If 从句 (一般现在时) + ， + 主句 (will/can/may + do)。 【主将从现】 例句： If we live on Mars, we will need special suits to go outside. If there is no water, we cannot survive. 非真实条件句/虚拟语气（假设与现在事实相反， ... ...