Unit1-Unit5语法和写作2026-2027学年人教版英语九年级上册

九年级英语上册 单元语法和写作 Unit 1 The Changing World 一、语法：一般过去时与现在完成时的区别 （一）侧重点不同 一般过去时表示过去某个特定时间发生的动作、存在的状态或习惯性动作，仅单纯陈述过去的事实，不强调对现在造成的影响。 现在完成时表示动作发生在过去，重点强调动作对现在造成的影响或产生的结果。 例句： We cleaned the classroom this morning. 今天早上我们打扫了教室。（仅陈述早上的动作，无法体现教室现在是否干净） We have already cleaned the classroom. 我们已经打扫了教室。（强调现在教室是干净的状态） （二）构成方式不同 一般过去时：主语 + 动词过去式 + 其他 现在完成时：主语 + have/has + 动词过去分词 + 其他 例句： He saw her three days ago. 三天前他看见了她。 I have already finished my homework. 我已经完成了我的家庭作业。 （三）时间状语不同 一般过去时搭配过去具体时间状语：yesterday, last week, two years ago, just now, in 2002 等 现在完成时搭配模糊时间、延续性时间状语：just, already, ever, never, these days, this week, since…, for… 等 例句： Did you see the film last night? 你昨晚看那部电影了吗？ He has lived in Beijing for 8 years. 他已经在北京住了8年。 二、写作：介绍自己的变化 （一）常用句型 1. How time flies! 时光飞逝！ 2. I have changed a lot in the past two years. 在过去的两年里，我改变了很多。 3. Looking back at my eighth-grade life, ... 回顾八年级的生活…… 4. What's more, I used to be weak in ... 而且，我过去在……方面很薄弱。 5. As a result, ... 结果…… 6. From my experience, I realize that ... 从我的经历中，我意识到…… （二）写作思路 文体：记叙文；人称：第一人称；时态：一般过去时、一般现在时、现在完成时 （三）范文 How time flies! I have changed a lot in the past two years. I can’t wait to share my changes with you, which have a great influence on my study and life. Looking back at my eighth-grade life, I used to be short and thin. But now I’m much taller and stronger because I keep doing exercise. Besides, I used to be shy and silent. I wasn’t brave enough to speak in front of crowds. But now I’m more outgoing and dare to give speeches in public. What’s more, I used to be weak in English. Thanks to my English teacher, she advised me to listen carefully in class and review notes after class. As a result, I have made great progress in English and always get good grades. From my experience, I realize that changes bring challenges as well as opportunities. Remember, it’s never too late to make changes to become a better person. Unit 2 Inspiring people 一、语法：It is + adj.(+ for/of sb.) + to do sth. 句型 句型结构：It is + 形容词 (+ for/of sb.) + to do sth. 中文释义：（对某人来说）做某事是……的。 解析：it 是形式主语，真正的主语是后面的动词不定式短语。 用法区别： 1. 用 for sb.：形容词用来描述事物的性质（难易、利弊、可能性等），如 difficult, easy, necessary, possible, interesting, cheap 等。 2. 用 of sb.：形容词用来描述人的品格、品质，如 brave, clever, foolish, generous, helpful, honest, kind, nice 等。 例句： It is difficult for me to learn English well. 对我来说学好英语很难。 It is kind of you to help me. 你能帮我，真是太好了。 二、写作：介绍你敬佩的人 （一）常用句型 1. Everyone has a hero in his heart. 每个人心中都有一个英雄。 2. Yuan Longping is the person who I admire most. 袁隆平是我最敬佩的人。 3. So he is called "the father of hybrid rice". 因此他被称为“杂交水稻之父”。 4. I want to be a person like him when I grow up. 我长大后想成为像他一样的人。 5. Heroes are like stars, lighting up the dark world. 英雄如星辰，照亮漫漫黑夜。 （二）写作思路 文体：记叙文；人称：第三人称为主；时态：一般过去时、一般现在时 （三）范文 Everyone has a hero in his heart, and so do I. Yuan Longping is the person who I admire most. He was born in Beijing in 1940 and passed away in Changsha in 2021. He developed hybrid rice, a great invention that changed the world. He helped people grow hybrid rice not only in China but also all over the world, and solved the global food shortage problem. So he is called "the father of hybrid rice". His spirit of dedication to people deeply moves me. I want to be a person like him and make contributions to our country when I grow up. Heroes are like stars, lighting up the dark world. Yuan Longping is the brightest star in my heart. Unit 3 Smart Learning 一、语法：宾语从句（一） （一）定义 置于谓语动词、介词等后面，充当宾语的句子，叫做宾语从句。 （二）分类 分为三类：that 引导的宾语从句、whether/if 引导的宾语从句、连接代词/连接副词引导的宾语从句。 （三）that 引导的宾语从句 1. 用法：that 无实义，仅起连接作用，口语中通常省略；常用于表示“希望、相信、知道、说”等含义的动词后。 常用动词：believe, expect, explain, feel, hear, hope, imagine, prefer, promise, report, say, see, tell, think, understand, warn, wish 等。 2. that 不可省略的四种情况： （1）宾语从句主语为 that 时 Eg: He says that that is a useful book. 他说那是一本有用的书。 （2）从句前有插入语时 Eg: It says on the card that it is made in China. 卡片上标注它是中国制造。 （3）宾语从句包含主从复合句时 Eg: I’m afraid that if you’ve lost it, you must pay for it. 恐怕如果你弄丢了它，就必须赔偿。 （4）多个宾语从句并列时，第一个 that 可省略，后续 that 不可省略 Eg: He said (that) the film was very interesting and that he enjoyed seeing it very much. 他说这部电影很有趣，而且他非常喜欢看。 3. 时态规则： （1）主句为现在时态，从句时态根据实际语境灵活变化 Eg: I remember he gave me a book yesterday. 我记得他昨天给了我一本书。 Eg: He has told me that he’ll leave for New York tomorrow. 他告诉我他明天将前往纽约。 （2）主句为过去时态，从句必须用过去的某种时态 Eg: He told me that he would take part in the high jump. 他告诉我他会参加跳高比赛。 （3）从句表述客观真理、自然规律，始终用一般现在时 Eg: He told me that the earth is round. 他告诉我地球是圆的。 4. 否定前移：主句主语为第一人称，谓语为 think, believe, suppose 等动词时，从句否定要转移到主句上。 Eg: I don’t think he is a good student. 我认为他不是一个好学生。 （四）whether/if 引导的宾语从句 1. 用法：由一般疑问句转化而来，whether/if 意为“是否”，无词义变化，不可省略，从句必须用陈述语序。 Eg: I want to know whether/if my sister is waiting for me at the school gate. 我想知道我妹妹是否正在校门口等我。 2. 只能用 whether，不能用 if 的情况： （1）引导介词后的宾语从句 Eg: I’m not angry about whether he will pass the exam. 我不在意他是否能通过考试。 （2）与 or not 直接连用时 Eg: I’m not sure whether his answer is right or not. 我不确定他的答案是否正确。 二、写作：介绍你的阅读习惯 （一）常用句型 1. Reading is like talking with wise people. 阅读就像与智者对话。 2. There are many kinds of books in my bookcase, such as... 我的书柜里有很多书，例如…… 3. I am very interested in ... 我对……非常感兴趣。 4. I usually read books for half an hour every day. 我通常每天阅读半小时。 5. Reading brings me lots of benefits. 阅读给我带来诸多益处。 6. I think this good habit is very valuable, and I will keep it up in the future. 我认为这个好习惯十分宝贵，我会一直坚持下去。 （二）写作思路 文体：记叙文；人称：第一人称；时态：一般现在时为主 （三）范文 I have kept a good reading habit for a long time. Reading is like talking with wise people, and it has become an important part of my daily life. There are many kinds of books in my bookcase, such as Children’s Encyclopedia, science books, fairy tales, cartoons and celebrity biographies. I am very interested in the wonderful stories and useful knowledge in these books. So I usually read for half an hour every day, either after finishing my homework or before going to bed. Reading brings me a lot of benefits. It not only cheers me up but also helps me gain new knowledge and deepen my understanding of the world. I think this good habit is very valuable, and I will continue to stick to it in the future. Unit 4 Our Memory 一、语法：宾语从句（二） 本节重点：特殊疑问句转化的宾语从句 1. 引导词：特殊疑问词（连接代词：who、whom、whose、which、what；连接副词：where、how、why、when），在从句中充当成分，不可省略。 2. 核心规则：宾语从句必须用陈述语序，即「疑问词+主语+谓语+其他」。 Eg: Please tell me when we will have a meeting. 请告诉我我们什么时候开会。 3. 时态规则： （1）主句为一般现在时，从句时态根据句意自由判定 Eg: I wonder if it will rain tomorrow. 我想知道明天是否会下雨。 Eg: He remembers that there was a house here in the past. 他记得这里曾经有一座房子。 Eg: Please tell me how long he has learnt English. 请告诉我他学英语多久了。 （2）主句为一般过去时，从句统一用过去相关时态（一般过去时、过去进行时、过去将来时、过去完成时） Eg: He asked me what time it was. 他问我当时几点了。 Eg: She said she was shopping at this time yesterday. 她说她昨天这个时候正在购物。 Eg: He said that he would go back to the US soon. 他说他很快就会返回美国。 Eg: He asked if I had written to Peter. 他问我是否给彼得写过信。 （3）从句表述客观事实、真理、自然现象，永远用一般现在时 Eg: Our teacher told us that light travels faster than sound. 老师告诉我们光的传播速度比声音快。 二、写作：如何提升记忆力 （一）常用句型 1. Improving memory is easier than you think! 提升记忆力比你想象的简单！ 2. First, keep a good sleep at night. 首先，保证夜间充足的睡眠。 3. Second, do more exercise to activate your brain. 其次，多运动激活大脑。 4. Third, try simple meditation to relax your mind. 第三，尝试简单的冥想放松大脑。 5. "Brain cleaning" helps store new knowledge in order. “大脑梳理”能让新知识有序储存。 （二）写作思路 文体：说明文；人称：第一、二人称均可；时态：一般现在时 （三）范文 Improving memory is easier than you think! Here are some useful ways. First, get enough sleep at night. Your brain will sort out and store memories while you sleep, which helps you remember things better. Second, move your body regularly. Just 30 minutes of walking every day can pump fresh blood to your brain. I often ride my bicycle after school, which makes my mind clearer. Third, try simple meditation. You can close your eyes, breathe deeply and let distracting thoughts go away. My yoga teacher says this "brain cleaning" helps store new knowledge neatly like books on a shelf. If you stick to these ways, your memory will be improved greatly. Unit 5 Power of Ideas 一、语法：被动语态 （一）定义 语态是动词的一种形式，用于体现主语与谓语的关系。英语分为主动语态和被动语态。 主动语态：主语是动作的执行者； 被动语态：主语是动作的承受者。 （二）常用时态被动语态构成 1. 一般现在时：主语 + am/is/are + 动词过去分词 Eg: The room is cleaned every day. 这个房间每天都会被打扫。 2. 一般过去时：主语 + was/were + 动词过去分词 Eg: The room was cleaned yesterday. 这个房间昨天被打扫过了。 （三）主被动语态转换规则 主谓宾结构的主动句可改为被动句：宾语变主语，谓语变被动形式，主语放 by 后（可省略）。 Eg: They planted a tree. → A tree was planted (by them). 他们种了一棵树。 Eg: They invited me to the party. → I was invited to the party by them. 他们邀请我参加了派对。 双宾语结构主被动转换（两种形式）： Eg: My father gave me a book. → I was given a book by my father. → A book was given to me by my father. 爸爸给了我一本书。 （四）无被动语态的情况 1. 部分不及物动词主动表被动：open, write, read, sell, wash 等 Eg: This kind of book sells well. 这种书很畅销。 2. 宾语为反身代词、相互代词（oneself, each other）时，无被动语态 Eg: The boy can teach himself. 这个男孩可以自学。 3. 表状态的动词、不及物动词无被动语态（fit, happen, take place 等） Eg: The coat fits her very well. 这件衣服很合身。 Eg: The accident happened last night. 这场事故发生在昨晚。 二、写作：介绍发明创造 （一）常用句型（修订优化） 1. Papermaking is one of the greatest ancient inventions in China. 造纸术是中国最伟大的古代发明之一。 2. Later, people kept improving printing technology. 后来，人们不断改进印刷术。 3. Papermaking replaced handwritten books and saved lots of time. 造纸术取代了手写书籍，节省了大量时间。 4. New technologies will keep appearing in the future. 未来会不断涌现新的技术。 5. It is a great invention created by our ancient ancestors. 这是我们祖先创造的伟大发明。 （二）写作思路 文体：说明文；人称：第三人称为主；时态：一般过去时、一般现在时 （三）范文 Printing is one of the most important ancient inventions in China. It was widely welcomed by people after its invention. Later, people improved printing technology constantly and introduced it to the West, where it also became very popular. Up to now, printing is still an indispensable technology in our life. It replaced handwritten books and helps people save plenty of time and energy. Although more and more new technologies have appeared in modern times, printing will never be out of date. It is a great treasure left by our ancestors and we should always cherish it. 6 学科网（北京）股份有限公司 $