Unit6 第4课时 Section A (4a-4c)课件2026-2027学年人教版九年级英语上册

该初中英语课件聚焦一般将来时被动语态，课堂导入通过“何时使用被动语态”的5种场景（如执行者未知、突出承受者等），连接基础用法与太空探索主题，为新知学习构建清晰支架。 其亮点在于词汇学习运用词根词缀法（如exoplanet=exo-+planet），语法通过4a识别、4b转换、4c语篇填空分层练习，小结系统梳理结构（构成公式、三步法则），分层作业满足不同学生需求。体现语言能力（主题语境融合词汇语法）、思维品质（主动被动逻辑转换），助力学生提升语言运用与自主学习能力，为教师提供系统教学资源和分层指导依据。

Unit6 Beyond Earth Section A Why do we explore space? 第4课时 (4a-4c) 目录 词汇学习 Vocabulary 课堂导入 Lead in 新知学习 Knowledge 巩固习题 Exercise 课堂小结 Summary 课后作业 Homework VOCABULARY 1. require /rɪˈkwaɪə(r)/ v. 要求；需要 词根：re-（再次）+ quire（寻求）→反复索要 → 需要、要求 2. cancel /ˈkænsl/ v. 取消；终止 无词根词缀，直接记忆，含义为撤销计划、终止事项 3. publish /ˈpʌblɪʃ/ v. 刊登；出版 词根：pub（公开）+ -lish（动词后缀） →公之于众 → 出版、发布刊登 4. rocket /ˈrɒkɪt/ n. 火箭 外来专有名词，无词缀，直接记 5. exoplanet /ˈeksəʊplænɪt/ n. 系外行星 词根：exo-（外部）+ planet（行星）→太阳系外部的行星 6. solar /ˈsəʊlə(r)/ adj. 太阳的；太阳能的 词根：sol（太阳）+ -ar（形容词后缀）→和太阳相关的 TRANSLATE： We require workers to cancel the old plan, publish new data, send a rocket to explore the exoplanet and study its solar system rules. 中文翻译 我们要求工作人员取消旧方案，发布新数据，发射火箭去探测系外行星，并研究它的太阳系运行规律。 LEAD IN When do we use the passive voice? 1. 不知道动作是谁做的（执行者未知） 例句：My bike was stolen yesterday.（不知道小偷是谁，不用 by） 2. 没必要说出动作执行者（人人都知道） 例句：A lot of trees are planted every spring. （大家都知道是人们种树，不用写 by people） 3. 重点想强调承受动作的事物（突出宾语） 想突出 “新火箭”，不用科学家做主语： Passive: A new rocket will be launched. 4. 科技、客观说明、说明文、科普文章（最常用） 课本太空主题全部大量被动：Exoplanets have been discovered. 5. 委婉表达、正式书面语、公文 It is said that… 据说…… It is thought that… 人们认为…… 4a Read the sentences and underline the verbs in the passive voice. Pay attention to how they are used in the simple future tense. New technology will soon be developed. Exploration of the planet Mars will be continued. International research stations will be built on the moon and Mars. Will life be found on another planet? Will you be visited by other astronauts? 动词原形 过去式 过去分词 变化规则 require position collect publish launch required required 以 e 结尾，直接加 d positioned positioned 直接加 ed collected collected 直接加 ed published published 直接加 ed launched launched 直接加 ed 4b Change these sentences from the active voice to the passive voice. 1. This project will require students to do research on space exploration. Students ________________________________________________. 2. Scientists will position more satellites in space. More satellites _________________________________________. will be required to do research on space exploration (by this project) will be positioned in space (by scientists) /rɪˈkwaɪə(r)/ v. 要求；需要 3. Because of the bad weather, they will cancel the trip to the space museum. The trip ______________________________________________. 4. The magazine will publish an article about future space travel next month. An article _____________________________________________. 5. Will the space centre launch a new rocket next month? Will a new rocket _______________________________________? will be cancelled (by them) because of the bad weather about future space travel will be published by the magazine next month be launched by the space centre next month /ˈkænsl/ v. 取消；终止 /ˈpʌblɪʃ/ v. 刊登；出版 /ˈrɒkɪt/ n. 火箭 4c Complete the passage with the correct forms of the words in brackets. For a long time, scientists have known that the universe ________ (fill) with stars. In more recent times, however, thousands of “exoplanets” have also been ______________ (discover). These are planets that ______ (move) around stars—just like in our own solar system. So far, more than 5,000 exoplanets __________________ (know) to us, and as technology improves, many more _______________ (find). Some exoplanets are similar to Earth. They are of a similar size and temperature, and they might have water. Scientists are excited about this. It ____________ (think) that if there is water, there might also be alien life! is filled discovered move have been known will be found is thought /ˈeksəʊplænɪt/ n. 系外行星 /ˈsəʊlə(r)/ adj. 太阳的；太阳能的 What are exoplanets? Exoplanets are planets that move around stars outside our solar system. They do not go around the Sun. Scientists have found thousands of them so far, and some are similar to Earth in size and temperature. What are your views on finding life on another planet? I think it is possible to find life on other exoplanets. First, many planets have water and proper temperature, which are basic conditions for living things. However, it will take a very long time and high technology to find alien life. We should keep exploring space with scientific methods. /ˈeksəʊplænɪt/ n. 系外行星 EXERCISE 一、基础填空：用 will be done 正确形式填空 A new spaceship ________________ (send) to Mars next year. All the old equipment __________ (not replace) until next month. ________ the plan __________ (discuss) at tomorrow’s meeting? 二、句型转换：主动变一般将来时被动 1.Workers will build a new space lab. A new space lab will be built (by workers). 2.The teacher will check our space reports. Our space reports will be checked (by the teacher). 3.Will they start the space project soon? Will the space project be started soon (by them)? will be sent won’t be replaced Will be discussed 三、短文填空（混合时态被动） Scientists believe many new planets ________________ (find) in the next ten years. So far, hundreds of strange planets _________already_____________________ ( discover). It ________________ (believe) that some of them ______________ (use) as human’s new homes one day. will be used will be found have been discovered is believed SUMMARY （一）核心语法：一般将来时被动语态 1. 构成公式 肯定句：主语 + will be + 动词过去分词 (done) 否定句：主语 + will not (won’t) be + 过去分词 一般疑问句：Will + 主语 + be + 过去分词？ 2. 含义 强调将来某个时间，主语被……（承受动作），不知道 / 不需要强调动作执行者时使用。 3. 课本例句拆解 More astronauts will be sent there. A new home will be needed. Our understanding will be greatly improved. （二）主动语态变被动语态三步法则 把原句宾语提到句首，作被动句主语； 谓语动词改为 will be + 过去分词； 原句主语前加 by，放句子末尾（可省略）。 例： Active: We will build a station. Passive: A station will be built (by us). （三）拓展关联被动结构（4c 短文出现） 现在完成时被动：have/has been done thousands of exoplanets have been discovered 系外行星已经被发现 2.固定句型：It is thought that… 人们认为……（通用被动句型） （四）不规则动词过去分词重点（本单元高频） send — sent；continue — continued； need — needed；improve — improved require — required；position — positioned； cancel — canceled；publish — published； launch — launched；fill — filled；find — found HOMEWORK A 层 基础巩固层（基础薄弱学生） 背诵一般将来时被动语态 3 个句式结构（肯定 / 否定 / 疑问），各仿写 2 个句子； 熟记本单元 10 个动词原形 + 过去分词，抄写一遍； B 层 能力提升层（中等水平学生） 完成全部 5 道拓展练习题，整理 “主动变被动” 解题笔记； 仿照 4c 短文，写一段 60 词小短文，混合使用一般将来时被动和It is thought that…句型，主题：Future Space Life； 自己出 5 道主动改被动的小题并写出答案。 C 层 拔高拓展层（优等生） 总结：一般现在时 / 现在完成时 / 一般将来时三种被动语态结构对比表格； 英语写作：Will humans live on other planets in the future? 80 词左右，文中至少使用 4 处一般将来时被动语态； 思辨思考：写下 3 条太空殖民可能遇到的难题，并用被动语态改写句子（例如：Lots of problems will be met on Mars.）。 $