最新九年级英语Unit13知识点
unit13九年级知识点
unit13九年级知识点Unit 13: 九年级知识点Unit 13 is an important unit in the ninth-grade curriculum. In this unit, students will learn various key concepts and knowledge that are essential for their academic growth. This article aims to provide a comprehensive overview of the main topics covered in this unit.1. Solving Equations:One of the fundamental skills students will develop in Unit 13 is solving equations. They will learn different methods such as the balance method and using inverse operations to find the value of an unknown variable. Solving equations is a crucial mathematical skill as it allows us to find unknown values and represent relationships between variables.2. Inequalities:Building upon the concept of equations, students will also learn about inequalities. Inequalities express relationships between variables using symbols such as < (less than), > (greater than), ≤ (less than or equal to), and ≥ (greater than or equal to). Understanding inequalities isessential for solving real-world mathematical problems, such as determining the number of solutions that satisfy certain conditions.3. Graphing Linear Equations:Another important topic covered in Unit 13 is graphing linear equations. Students will learn how to plot points on a coordinate grid and connect them to form a line. Graphing linear equations helps visualize the relationship between two variables and provides a graphical representation of the equation. This skill is crucial in various fields, including science, engineering, and economics.4. Proportional Relationships:Unit 13 also introduces students to the concept of proportional relationships. Proportional relationships exist when two quantities vary in a consistent manner. Students will learn how to identify proportional relationships, represent them using equations or tables, and solve problems involving proportional reasoning. This knowledge is valuable in various real-life scenarios, especially when dealing with rates, ratios, and percentages.5. Similarity and Congruence:Furthermore, students will delve into the realm of geometry in Unit 13 by exploring similarity and congruence. Similar figures have the same shape but differ in size, while congruent figures have both the same shape and size. Students will learn how to identify and apply properties of similar and congruent triangles. These concepts are crucial in fields such as architecture, design, and engineering.6. Pythagorean Theorem:Unit 13 also covers the Pythagorean Theorem. This theorem relates the lengths of the sides of a right triangle and is considered one of the most important theorems in mathematics. Students will learn how to apply the Pythagorean Theorem to solve problems involving right triangles and calculate unknown side lengths. This theorem has significant applications in various fields, including architecture, navigation, and physics.In conclusion, Unit 13 encompasses a range of important mathematical concepts and skills. From solving equations to graphing linear equations, from understanding inequalities to exploring similarity and congruence, and from proportional relationships to the Pythagorean Theorem, students will gain a strong foundation in math through this unit. Mastering these knowledge points will not only equip studentswith essential mathematical skills but also enable them to approach real-world problems with confidence and analytical thinking.。
英语九年级全一册unit13知识点
英语九年级全一册unit13知识点Unit 13 in the ninth grade English textbook covers various language skills and knowledge. In this article, we will explore the key points and concepts introduced in this unit.1. Vocabulary:Unit 13 offers a range of new vocabulary, including words related to health and medicine, such as "symptom," "diagnosis," and "treatment." It also introduces terms related to environmental issues, like "pollution," "sustainability," and "conservation." Building a strong vocabulary foundation is crucial for effective communication.2. Grammar:In this unit, students will encounter the usage of reported speech, which is a fundamental aspect of English grammar. Reported speech allows us to convey the words, thoughts, or actions of someone else. It involves changing the verb tense, time expressions, and pronouns. For example, direct speech like "She said, 'I am studying English'" would be reported as "She said she was studying English."3. Reading comprehension:Unit 13 presents various reading passages to improve students' comprehension skills. One text might discuss personal health, providing tips on adopting a healthy lifestyle. Another passage might tackle environmental problems and suggest ways to preserve the planet. These reading exercises develop students' ability to understand and analyze written text.4. Writing skills:The unit incorporates writing exercises, encouraging students to express their opinions and ideas effectively. They may be asked to write an argumentative essay discussing the benefits of regular exercise or a persuasive letter advocating for environmental protection. These activities enhance students' ability to present logical arguments and support their claims with evidence.5. Listening comprehension:Unit 13 provides listening exercises to improve students' auditory skills. They might listen to dialogues related to health, where they need to understand and respond appropriately. Another listening task might involve an environmental discussion, where students need to grasp the main ideas and key points. Developing listening skills is essential for effective communication in the English language.6. Speaking practice:To develop students' oral proficiency, Unit 13 includes opportunities for speaking practice. This can be in the form of role-play activities, where students act out scenarios related to health or the environment. By engaging in these activities, students improve their fluency, pronunciation, and ability to express themselves verbally.7. Cultural awareness:In addition to language skills, Unit 13 also promotes cultural awareness. It may include topics such as traditional medicine practices in different cultures or environmental initiatives in various countries. This helps students broaden their knowledge of different customs and traditions, fostering a more tolerant and understanding mindset.In conclusion, Unit 13 in the ninth-grade English textbook covers a range of language skills and knowledge. Through vocabulary expansion, grammar practice, reading comprehension, writing exercises, listening tasks, speaking practice, and cultural exploration, students enhance their language proficiency while gaining a deeper understanding of health, medicine, and environmental issues.。
九年级英语unit13知识点梳理
九年级英语unit13知识点梳理九年级英语Unit 13知识点梳理九年级英语的Unit 13是一个非常重要的单元，主要讲述了关于人的各种主观和客观感受的表达方式。
本文将对Unit 13所涉及的知识点进行梳理和总结，以便大家更好地理解和掌握。
1. 形容词和副词的比较级和最高级在表达人的主观感受时，我们常常会使用形容词和副词的比较级和最高级来进行强调。
比较级的形式一般在词尾加-er或者在词前加more，而最高级则在词前加the或在词尾加-est。
例如：“He is taller than his brother.”（他比他的兄弟高。
）“She runs the fastest in the team.”（她在队伍中跑得最快。
）2. 喜欢与不喜欢的表达在Unit 13中，我们学习了多种表达喜欢和不喜欢的方式。
例如，我们可以使用“I like...”来表达喜欢某件事物，而使用“I don’t like...”来表达不喜欢。
此外，我们还可以使用“I am into...”来表达对某件事情非常感兴趣。
例如：“I am into playing football.”（我对踢足球非常感兴趣。
）3. 情感和感觉的表达Unit 13中还包括了描述人的情感和感觉的表达方式。
我们可以使用形容词来表达人的情感状态，例如：“She is happy.”（她很开心。
）或者使用动词不定式来表达感觉，例如：“I feel happy to learn English.”（我觉得学英语很开心。
）4. 表示建议和提供帮助的方式在Unit 13中，我们还学习了如何向他人提出建议或者给予帮助。
我们可以使用情态动词“should”来表示建议，例如：“You should take a break.”（你应该休息一下。
）我们还可以使用“Let me help you.”（让我来帮你。
）来表示提供帮助。
5. 时间状语的使用Unit 13还涉及了时间状语的使用。
九年级英语unit13知识点归纳总结
九年级英语unit13知识点归纳总结九年级英语Unit 13知识点归纳总结本文将对九年级英语Unit 13的知识点进行归纳总结，包括语法、词汇和阅读等方面的内容。
一、语法1. 直接引语与间接引语直接引语是指直接引述别人的原话，需将其用引号括起来，并使用说、问等动词进行引述。
例如：“I will go to the cinema,” he said.间接引语是指对直接引语的转述，需改变动词的时态和人称，并将引号省略。
例如：He said that he would go to the cinema.2. 动词时态的使用在叙述过去发生的事情时，通常使用过去时态。
例如：Last night, I watched a movie.在描述过去某个时间点前已经发生的动作时，使用过去完成时态。
例如：I had finished my homework before he came.3. 虚拟语气虚拟语气用来表示与事实相反的情况或建议、要求等。
在虚拟语气的从句中，主语动词需用过去时，情态动词“should”也要用于从句中。
例如：If I were you, I would go there.二、词汇1. 短语与习惯用语习惯用语是指使用地区、时间等引起的固定表达方式，例如：“Would you like a cup of tea?”“Yes, please.”短语是句子中常用的表达方式，例如：“look up to”意为“尊敬”。
2. 同义词辨析同义词是指意思相近或相同的词语，但在用法上有所差异。
例如：“beautiful”和“gorgeous”都可以表示美丽，但在用法上有所区别。
三、阅读1. 阅读理解阅读理解是考察理解能力和阅读技巧的题型。
在解答时，可先通读全文，然后根据问题在文中定位答案。
2. 短文填空短文填空是考察对文章整体内容的理解和对语法结构的掌握。
在填空时，可根据文章的上下文进行推测。
总结：本单元的知识点归纳总结主要包括语法、词汇和阅读三个方面。
九年级英语十三单元知识点
九年级英语十三单元知识点英语作为一门重要的国际语言，是我们学习和工作中必不可少的一部分。
针对九年级英语的十三单元，本文将重点介绍相关知识点，帮助大家更好地掌握这些内容。
第一部分：词汇在九年级英语的十三单元中，涉及了大量的词汇。
这些词汇包括名词、动词、形容词等等。
其中一些重要的词汇如下所示：1. Noun （名词）名词是指表示人、事、物或抽象概念的词语。
在这个单元中，我们学习了一些常见的名词，如"school"（学校）、"book"（书籍）等。
2. Verb （动词）动词是指表示一个动作、状态或事件的词语。
在这个单元中，我们学习了一些常见的动词，如 "read"（阅读）、"study"（学习）等。
3. Adjective （形容词）形容词是指用来描述或修饰名词的词语。
在这个单元中，我们学习了一些常用的形容词，如 "beautiful"（美丽的）、"interesting"（有趣的）等。
第二部分：语法除了词汇外，九年级英语的十三单元还包括了一些重要的语法知识。
这些语法知识主要涉及句子结构、时态和语态等方面。
1. 句子结构英语句子通常由主语、谓语和宾语组成。
在这个单元中，我们学习了简单句、复合句和复杂句等不同的句子结构。
2. 时态时态是指表示动作或状态发生时间的词语。
在这个单元中，我们学习了一些常用的时态，如一般现在时、一般过去时、一般将来时等。
3. 语态语态是指动作的主体和客体之间的关系。
在这个单元中，我们学习了主动语态和被动语态。
主动语态强调主语执行动作，被动语态强调动作的承受者。
第三部分：阅读理解九年级英语的十三单元中，阅读理解是一个重要的部分。
阅读理解既考察了学生对课文的理解，也需要学生掌握一定的阅读技巧。
1. 理解课文理解课文是阅读理解的基础。
这需要学生仔细阅读课文，理解文章的主题、主旨以及重要细节。
人教版英语九年级全册单元unit 13 知识点+测试卷+思维导图
Unit 13 We are trying to save the earth.1.重点词汇：bottom, fisherman, coal, advantage, industry, law, gate, bottle, president, work, metal...2. 短语归纳：1. be full of 充满2. get in the shower 在洗淋浴3. leave sth in sp 把某物留在某地4. by the time... 到……的时候；到……之前5. be late for class 上课迟到6. go off 发出响声7. brush one’s teeth 刷牙8. give sb a lift 捎某人一程9. be about to 即将……；正要……10. stare at 盯着看11. in disbelief 疑惑地；不相信地12. take off （飞机等）起飞13. show up 赶到14. get a chance to do sth 得到一个做某事的机会15. leave for sth 动身去某地16. sell out 卖光17. lose weight 减肥18. run out of 用完3. 必背典句：1. We are trying to save the earth. 我们正在努力拯救地球。
2. The river used to be clean. 这条河过去是干净的。
3. The air is badly polluted. 空气受到严重污染。
4. No scientific studies have shown that shark fins are good for health.没有科学研究表明鱼翅对健康有益。
4.语法知识：英语句子成分分析组成句子的各个部分叫做句子成分。
它包括：主语、谓语、宾语、定语、状语、表语和宾语补足语等。
人教版九年级unit13知识点
人教版九年级unit13知识点人教版九年级Unit 13 知识点Unit 13的知识点主要涵盖了三个方面：句子结构、词汇与语法。
下面将分别进行介绍。
一、句子结构1. 简单句：一个完整的句子，包含一个主语和一个谓语。
例：We watched a football match yesterday.（我们昨天看了一场足球比赛。
）2. 并列句：由两个或多个独立的简单句连接而成，它们之间用逗号或者连接词（如and，but，or等）进行分隔。
例：I like playing basketball, and my brother likes playing soccer.（我喜欢打篮球，而我哥喜欢踢足球。
）3. 复合句：一个完整的句子，由一个或多个主句和一个或多个从句组成。
例：Although it was raining, we still went hiking.（虽然下雨了，但我们还是去爬山了。
）二、词汇1. 人称代词：第一人称（I，we），第二人称（you），第三人称（he，she，it，they）。
例：He is my best friend.（他是我最好的朋友。
）2. 形容词：用于描述名词或代词的特征或属性。
例：The beautiful flowers are in bloom.（美丽的花儿已经开放了。
）3. 副词：修饰动词、形容词或其他副词，用于表示时间、地点、原因等。
例：She runs very fast.（她跑得非常快。
）4. 动词：表示动作、状态或存在的词。
例：They are swimming in the pool.（他们正在游泳池里游泳。
）三、语法1. 一般现在时：表示经常性或习惯性的动作。
例：I always go to bed early.（我总是早睡。
）2. 一般过去时：表示过去发生的动作或状态。
例：She finished her homework last night.（她昨晚完成了她的作业。
英语九年级unit13知识点
英语九年级unit13知识点【英语九年级Unit13知识点】Unit 13 in the English curriculum for ninth-grade students covers a range of important knowledge points. In this article, we will explore these knowledge points without repeating the title. The format will be presented in a structured and organized manner.1. Present Tense: The Simple Present, Present Continuous, and Present Perfect- Simple Present: This tense is used to describe habits, general truths, and permanent situations.- Present Continuous: It indicates an action happening at the time of speaking or plans arranged in the future.- Present Perfect: This tense is used to express an action that happened in the past but has an impact on the present.2. Adverbials of Time and Frequency:- Adverbials of Time: Words or phrases that indicate when an action occurs (e.g., today, tomorrow, every day, etc.).- Adverbials of Frequency: Words or phrases that describe how often an action takes place (e.g., often, always, sometimes, etc.).3. Passive Voice:- The passive voice is used when the focus is on the action rather than the person or thing performing it.- The structure of passive voice sentences: Object + "be" verb + past participle.4. Modal Verbs:- Modal verbs include can, could, may, might, must, should, would, etc.- These verbs express ability, permission, possibility, necessity, or advice.5. Gerunds and Infinitives:- Gerunds: They are formed by adding "-ing" to a verb and function as nouns in a sentence.- Infinitives: The base form of a verb, usually preceded by "to," and can serve as nouns, adjectives, or adverbs.6. Reported Speech:- Reported speech is used to convey someone else's words or thoughts.- Reported speech involves changes in pronouns, tenses, and adverbs of time and place.7. Relative Clauses:- Relative clauses provide additional information about a noun or pronoun in a sentence.- They begin with relative pronouns (who, which, that, whose, where) or relative adverbs (when, where, why).8. Conditional Sentences:- Conditional sentences express hypothetical situations and their outcomes.- They include "if" clauses and main clauses, with different tenses used to indicate different conditions.9. Phrasal Verbs:- Phrasal verbs consist of a verb and one or more particles (prepositions or adverbs).- The meaning of phrasal verbs can be idiomatic and may not be deduced from the individual words.10. Prefixes and Suffixes:- Prefixes are added at the beginning of a word to change its meaning (e.g., un-, dis-, re-).- Suffixes are added at the end of a word to modify its meaning (e.g., -able, -ful, -less).In conclusion, the above points summarize the key knowledge covered in Unit 13 of the ninth-grade English curriculum. Mastering these concepts will greatly enhance students' understanding and usage of the English language.。
完整版人教版新目标九年级英语Unit13知识点及练习
Unit 13 We are trying to save the earth. 知识点及练习Section A 知识点1.try v. ，努力，用法： try to do sth. 全力做某事try doing sth.做某事try one's best (to do sth.) = do one's best (to do sth.)尽某人最大的努力(做某事 )短： try on穿try out用，参加拔have a try，一下let me try我一下2.the earth地球，表示世界上独一无二的事物前方要加定冠the 。
短： on the earth在地球上on earth终归，终归3. pollution n. 染，染物→ pollute v.染→polluted adj.被染的短： air pollution大气染，空气染noise pollution噪音染water pollution水染4. litter v.扔垃圾n.垃圾 = rubbish = trash短： take out the rubbish倒垃圾throw rubbish / litter扔垃圾5. the bottom of ⋯⋯的底部the top of ⋯⋯的部6. be full of = be filled with充⋯⋯7. play a part参加⋯ ；起作用play a part in在⋯“方面起作用；参加⋯”，后接名、代或-ing形式。
8.cut 短cut down减少，把⋯⋯ 砍倒cut in插cut off切断；断cut up切碎cut out除9. instead of介短，后跟名、代或ing 形式。
instead副，常位于句末。
位于句首，今后有逗号。
10. It ’ s good for health and it doesn't cost anything! (P98)11.be good for⋯⋯有利，反be bad for 。
九年级英语第十三单元重要知识点归纳(整理打印版)
九年级英语第十三单元重要知识点归纳(整理打印版)Unit13We’re trying to save the earth!【短语归纳】1.try to do sth = try one’s best to do努力去做某事2.save XXX拯救地球3.be related to与……有关4.the bottom of....的底部/the bottom of the river河底at the top of在……的顶部,顶端5.be full of the rubbish = be XXX充满垃圾6.throw to = throw at向……扔throw ...into把…扔到…里/XXX XXX把垃圾扔入河里7.put …into把…放进8.close down关闭ed to+动词：过去常常…used to+非动词：曩昔是如何的play a part在……中扮演角色11.burn coal烧煤12.turn …into…把…改酿成…13.cut down air pollution减少空气污染14.wooden chopsticks（一次性）木筷15.plastic forks塑料叉子16.make a difference (to…)(对……)产生影响或作用17.lead to通向；招致18.XXX听说19.XXX在中国的南部20.a bowl of shark fin soup一碗鱼翅21.cut off切掉22.throw back into扔回23.not only ... but also ...不但...而且...24.be harmful to = be bad for对…有害25.no XXX不再26.at the top of the food chain处于食物链的顶端XXX在海洋生态系统中28.in fact实际上29.the number of……的数量30.have fallen by over 90 percent曾经降落了90%以上31.in the last 20 to 30 years在最近的20到30年间(现在完成时）32.XXX全球环境保护组织33.develop laws健全法令34.the sale of shark fins鱼鳍买卖35.so far现在为止36.scientific studies科学研讨37.(be) in danger处于危险状态之中38.XXX part in参加39.help out摆脱困境40.XXX改善环境41.XXX不能承担做某事afford to do sth.买得起…，充足领取42.XXX采取行动43.turn off the lights关灯44.pay for支付，付费45.add up累加，总计e XXX使用公共交通工具47.XXX收受接管书和废纸48.turn off the shower关掉喷头e paper napkins利用纸巾50.ride in XXX开车出行51.stop XXX停止做某事52.think about考虑53.put to good use好好利用54.build/make…out of…用...建成…，用...来制造…55.pull down拆下；摧毁56.turn upside down高低倒置，倒转an old boat XXX upside down一艘倒过来的旧船57.XXX获奖58.be an XXX成为或人的楷模59.set up树立60.plan to do sth计划，打算做某事61.be known for = be famous for因……而著名up a small business开一个小商店，做一个小生意63.art pieces艺术品64.a “metal art” XXX一个“金属艺术”主题公园66.bring back恢复；使想起67.have the advantage of胜过，处于有利条件【单元知识点】1.辨析take, spend, pay, cost①take多透露表现破费工夫主语通常是It，句型：It XXX sb. some time to do sth.如：It usually takes me 40 minutes to cook the XXX.②spend多透露表现破费工夫和款项主语平日是人，句型：XXX.XXX some time /money (in) doing sth如：XXX 2,000 yuanon the new machine.XXX (in) watching the news on TV every day.③pay，支付，多表示花费金钱主语通常是人，句型：sb. pay some money for sth如：Tommy paid 20 XXX.④cost多表示花费金钱主语平日是物，句型：sth. cost (sb.) some money如：The new dress cost Linda 88 yuan.2.辨析no longer，not…any longer，no more，not…any more①no longer和not…any longer侧重时间。
九年级英语知识点unit13
九年级英语知识点unit13Unit 13 - A World of WondersIntroduction:As students delve deeper into their English learning journey, they encounter a variety of fascinating topics and essential knowledge. One such unit is Unit 13, which introduces students to various aspects of the world, exploring different cultures, traditions, and geographical wonders. In this article, we will explore the key knowledge points covered in Unit 13 of the ninth-grade English curriculum.1. Cultural Diversity:Unit 13 provides students with a glimpse into the rich diversity of cultures around the world. It highlights the importance of understanding and respecting different customs, traditions, and beliefs. Through engaging activities and discussions, students learn to appreciate and embrace the differences that make each culture unique.2. Famous Landmarks:The unit introduces students to iconic landmarks from different parts of the world, such as the Great Wall of China, the Eiffel Tower in France, and the Pyramids of Egypt. Students not only learn about thehistorical significance of these landmarks but also understand their cultural importance and the impact they have on tourism. This knowledge broadens their worldview and encourages them to explore the wonders of our planet.3. Natural Wonders:Unit 13 also sheds light on the breathtaking natural wonders that exist around the globe. Students discover magnificent sites such as the Grand Canyon in the United States, the Great Barrier Reef in Australia, and the Amazon Rainforest in South America. Emphasizing the importance of environmental conservation, students gain a deeper understanding of the beauty and fragility of our natural world.4. Festivals and Celebrations:The unit provides insights into various festivals and celebrations observed by different cultures worldwide. Students learn about traditional customs, such as the Chinese Spring Festival, Indian Diwali, and American Thanksgiving. By understanding the significance of these celebrations, students become more tolerant and appreciative of diverse cultural practices.5. Global Issues:Unit 13 addresses global issues such as environmental degradation, climate change, and poverty. Through thought-provoking discussions and activities, students develop a sense of responsibility towards these issues and understand their role in creating a sustainable world. They broaden their knowledge about the challenges faced by humanity and the importance of collective action.Conclusion:Unit 13 encompasses a wide range of knowledge points that contribute to students' overall understanding of the world. By exploring cultural diversity, famous landmarks, natural wonders, festivals, and global issues, students develop a broader perspective, empathy, and appreciation for different cultures and our planet's beauty. Unit 13 acts as a stepping stone for students to become responsible global citizens, appreciating the wonders of our world and taking action to protect it.。
新目标英语九年级Unit_13_知识要点归纳
期知1.throw litter into the river 把垃圾扔入河中2.play a part in cleaning it up 尽一份力把它清理干净3.fill the air with black smoke 空气中充满黑烟4.cut down air pollution 减少空气污染5.make a difference 产生影响6.shark fin soup 鱼翅汤7.at the top of the food chain 处于食物链的顶端8.in the last 20to 30years 在最近的20到30年间9.develop laws 健全法律10.can ’t afford to do sth.负担不起做某事11.take action 采取行动12.add up 累加e public transportation 使用公共交通14.recycle books and paper 回收书和废纸15.put sth.to good use 好好利用……16.pull...down 拆下17.an old boat turned upside down 一艘倾覆的旧船18.be an inspiration to sb.对某人来说是一种鼓舞19.set up a website 建立一个网站20.be known for 因……而闻名【重点词汇】【重难点句子】1.Sharks may disappear one day if we do not do something to stop the sale of shark fins.如果我们不采取措施来阻止这种鱼鳍买卖，鲨鱼可能有一天会灭绝。
2.This method is not only cruel,but also harmful to the environment.这种方法不仅残酷，而且对环境有害。
3.The numbers of some kinds of sharks have fallen by over 90percent in the last 20to 30years.在最近的20到30年的时间里，某些种类的鲨鱼的数量已经下降了90%。
人教版新目标九年级英语Unit13知识点及练习
Unit 13 We are trying to save the earth.知识点及练习Section A知识点1. try v. 试图，努力，尝试用法：try to do sth. 尽力做某事try doing sth. 尝试做某事try one's best (to do sth.) = do one's best (to do sth.)尽某人最大的努力(做某事)短语：try on 试穿try out 试用，参加选拔have a try 尝试，试一下let me try 让我试一下2.the earth 地球，表示世界上独一无二的事物前面要加定冠词the。
短语：on the earth 在地球上on earth 究竟，到底3. pollution n.污染，污染物→pollute v. 污染→polluted adj.被污染的短语：air pollution 大气污染，空气污染noise pollution 噪音污染water pollution 水污染4. litter v. 扔垃圾n.垃圾= rubbish = trash短语：take out the rubbish 倒垃圾throw rubbish / litter 扔垃圾5. the bottom of……的底部the top of ……的顶部6. be full of = be filled with 充满……7. play a part 参与…；起作用play a part in “在…方面起作用；参与…”，后接名词、代词或动词-ing形式。
8.cut短语cut down 减少，把……砍倒cut in 插话cut off 切断；断绝cut up 切碎cut out 删除9. instead of 介词短语，后跟名词、代词或动词ing形式。
instead 副词，常位于句末。
位于句首时，其后有逗号。
10. It’s good for health and it doesn't cost anything! (P98)11.be good for 对……有益，反义词组be bad for。
九年级英语第十三单元知识点
九年级英语第十三单元知识点一. 重要词汇和句形1. 表示天气的词汇：名词+ y 变为形容词wind (风)--- windy(有风的,风大的) rain (雨, 下雨) --- rainy (多雨的,有雨的)ice (冰) –---icy (有冰的) snow(雪,下雪) ------ snowy( 有雪的,多雪的) fog(雾)—foggy (多雾的, 有雾的) cloud (云)-------- cloudy(多云的, 阴天的)sun ( 太阳)---- sunny(晴朗的, 天晴的)Summer is a rainy season in China .I work both on sunny days and on rainy ones .What is the weather like today ? It is sunny today .== How is the weather today ? 今天的天气怎样?What will the weather be like tomorrow ?==How will the weather be tomorrow ? 明天的天气怎么样?It will be cloudy tomorrow .2. What do you think of … ? 你认为……怎么样?== How do you like … ?---What do you think of the movie ? ---- It’s wonderful .----How do you like him ? -----He is a funny person .3. listen to 听……Please listen to me .We should listen to the teacher carefully in class .She likes listening to pop songs .4. learn from …向某人学习\ 从……中学习We should learn from each other .We can learn something about history from stamps .5. hard (1) 形容词, ―严格的‖Don’t be too hard on her . After all, she’s too young .(2) 形容词, ―困难的‖It’s hard to know what he’s really thinking .(3) 形容词. ―坚硬的‖This is a hard stone .(4) 副词, ―重重地, 猛烈地‖It’s raining hard outside .He suddenly pushed the door very hard and came into our house .(5) 副词, ―努力地,用劲地‖Work hard and you can learn English well .hardly 副词, 几乎不There is hardly water in the river , is there ?He could hardly believe his own eyes .An endangered culture .6.(1) keep + 宾语+ 形容词使某人\ 某物保持……的状态When we do eye exercises , we should keep our eyes closed .(2) keep sb. doing sth. 使某人保持\ 一直做某事Don’t keep me waiting too long .(3 ) keep doing sth 保持做某事He kept smiling when he read the letter .(4) keep + 宾语+ 介词短语I always keep the keys in my bags .(5 )keep \ catch up with sb .赶上某人You must work hard every day to keep up with others .( 6) keep in touch with sb. 和某人保持联系Do you keep in touch with your classmates ?(7) keep out 阻止进入The trees can keep out the wind .Warm clothes will keep out the cold .(8) keep\ stop \ prevent sb. from doing sth 阻止某人做某事Who can keep the dog from coming into the classroom ?7. aim at 瞄准, 致力于He aimed at the bird with a gun . .be aimed at 针对…… ; 旨在…… .The rules are aimed at the students in school .The plan is aimed at making people protect the environment .8. compare sth to sth 把……比作……The poets often compare life to a river . 诗人们经常把生活比喻成长河.compare …with …把……与……相比My mother always compares me with other children .我母亲总是把我和别的孩子相比较.Compare this watch with that one , and you’ll find which is better .把这块手表和那块相比较, 你就会发现哪块更好.9. 表示价格高低用high \ low , 表示东西贵或便宜用expensive \ cheapThe MP3 is expensive .The price of the MP3 is too high .表示―以……价格买……‖时, 用介词atMr smith bought a new car at a low price .提问价钱可用句型: W hat’s the price of … ?How much is …?How much does …cost ?10. at times == sometimes 有时He is always losing something. His parents have to remindhim of that at times .at that time 在那时, 当时At that time no one knew what was happening .at one time 曾经, 一度They were good friends at one time .at any time 随时,任何时候You can call me at any time .at a time 一次, 每次You can borrow five books in our school library at a time .at the same time 同时She was laughing and crying at the same time .at other times 有时候Sometimes we go to the cinema and at other times we go for a walk .15. make 的用法:(1) make sb. do sth . 使某人做某事His joke ( 玩笑) often makes us laugh ( 笑) ..It’s the wind that makes the kites fly .(2) make + 形容词使某人\某物…Don’t make your hands dirty . Please make your eyes closed . (3) make sb. + 名词使某人成为……We made him captain of our football team .We made him our monitor .16．buy sth. for sb. \ buy sb. sth . 为某人买某物I bought a coat for my father last week .=== I bought my father a coat last week .. buy sth from sb . 向某人买某物sell sth. to sb .把某物买给某人We often buy school things from this shop .This shop often sells school things to us .17. have fun == have a good\ great \ wonderful time == enjoy oneself玩得开心\ 过得愉快We had fun at the party yesterday evening .===We had a good\ great \ wonderful time at the party yesterday evening.=== we enjoyed ourselves at the party yesterday evening .18. science 名词, ―科学‖scientist 名词, ―科学家‖Scientific 形容词, ―科学的‖Science is my favorite subject .He is a famous scientist .This is a scientific discovery .19. use sth to do sth. 用某物做某事I use this knife to cut paper .Many restaurants use this knowledge to make customers eat faster .20. design (1) 及物动词, ―设计‖, 接名词或代词。
Unit13知识点 人教版英语九年级全册
九年级U n i t13知识点梳理及拓展一、词汇回顾1.乱扔,垃圾,废弃物____________2.底部,最下部_________________3.公众的,公共的______________4.民众,百姓__________________5.优点,有利条件______________6.花费,花费,价钱_____________7.木制的,木头的_____________ 8.塑料的,塑料,塑胶__________9.有关系,作用,影响___________ 10.方法,措施__________________ 11.残酷的,残忍的______________12.有害的_____________________ 13.链子,链条__________________ 14.工业,行业___________________ 15.可重复使用的______________ 16.承担得起（后果）买得起________ 17.回收利用,再利用_____________ 18.大门__________________________ 19.负责人，主席________________ 20.金属__________________________二、词汇变形1.wood(n.木头)→____________________(adj.木制的)2.harm ( n.伤害) →_________________ (adj.有害的) →_________________adj.无害的3.danger(n.危险) →endanger(v.使遭危险;危及) →___________________ (adj.濒危的) →___________________ (adj, 危险的)w(从法律)--lawyer(n.律师)5._____________(n.科学) →___________________ (adj.科学上的,科学的)→___________________ (n.科学家)e(v.使用) →______________ (v.再次使用) →_____________(adj可再次使用的)7.advantage( n.优点;有利条件) →___________________ (反义词) (n.缺点:不利条件)8.__________(v.运输) →__________________(n.运输业:交通运输)9.inspire(n.鼓舞;激励) →___________________ n.灵感;鼓舞人心的人(或事物)10.c reate(v.创造) →_________________ (adj.有创造力的) →________________ (n.创造力:独创性)→___________________ (n.创者)→___________________ (n.创造;作品)三、短语归纳1._________________/________________充满2.______________________把...扔入...里3.________________________过去常常4.________________________在...中发挥作用5.__________________砍倒6._______________________代替，而不是7._________________________有影响，起作用8.__________________导致，通向9._____________________听说10.______________________对...有害11.___________________________不但...而且12.______________到目前为止13._______________________在...顶端或顶部14.____________________________承担得起做15.________________________参加16.______________付费17._______________关掉18.__________________采取行动19._________________扔掉20.________________恢复，归还，使想起21.__________________清理，打扫干净22._______________________在...中发挥作用23._____________________在...底部24._______________________充分利用25.__________________伤害26.________________________...的数量27._________________________违法28.________________________遵守法律30._______________________交通法规31._________________发生32._______________当心，小心33.________________采取措施34.________________占据，开始从事35.________________________想出36._________________赠送,捐赠37.________________成立；建立；建起38.____________________试穿39.____________试验，尝试,参加…选拔四、知识详解1.try to do =try one’s best to do 尽力做某事-e.g. _____________________________________我们将努力在一周内完成这项工作。
九年级英语Unit13知识点
九年级英语Unit13知识点九年级英语Unit13《We're trying to save the earth!》知识点1.现在进行时定义：表示说话时（瞬间）正在进行的动作，也表示目前或现阶段一直进行的动作。
结构: ①肯定句: 主语+ am/is/are + V-ing②否定句: 主语+ am/is/are + not + V-ing③疑问句: Am/Is/Are + 主语+ V-ing用法：1）表示说话时正在进行的，目前正在发生的动作。
①Look! The big bird is flying away. ②He is watching a movie now.2）表示目前一段时间内正在进行，但说话时可能没有进行的动作。
Right now I am studying Chinese by distance learning. 我现在正通过远程教育学习汉语。
1) 2)常带有表示目前时刻的时间副词, 如：now, right now, at the (very) moment, for the time being, at present, these days 及Look! Listen! ...3）与always, constantly, forever, all the time等副词连用，表示动作反复或习惯。
此时句子常含有说话者的强烈情感在内。
表达较强的“责备”或“表扬”之意①You are always changing your mind. 你总是主意不定。
(太烦人了)②He is always helping othe rs.他总是帮助别人。
(他真是个好人)4）对于come, go, leave, arrive, start, fly, drive等表示位置移动的动词常可用进行时态表将来。
①He is leaving on Wednesday.②Mary isn’t here at the moment. She is coming later.2. used to do过去常常做某事见第四单元及use用法be/get used to doing 习惯于做某事be used to do=be used for doing 被用来做某事3. 被动语态见第五单元注意：接双宾语的词的被动语态；make /let /have sb do的被动语态；see/ hear /notice /find /observe/notice sb do 的被动语态；It’ssaid/reported/believed/supposed/well-known that；及无被动语态的三种情况（感官动词、不及物动词、sell/write等）4. 现在完成时:用法：①过去发生的动作对现在造成的影响或结果：强调结果Yesterday I finished my homework, that’s to say, I have finished my homework now. ②过去已经开始一直持续到现在的动作或状态：强调继续I have lived here since 1990.现在完成时的构成have/has+过去分词现在完成时的四个基本句型肯定句He has finished the work.一般疑问句Has he finished the work?否定句He has not finished the work.两回答Yes ,he has. No, he hasn’t.特殊疑问句What has he done?在下列情形下用现在完成时1九词语①already 已经肯定句中或句尾I have already found my pen. =I have found my pen already.②yet已经否定句和疑问句句尾I have not finished the work yet.Have you bought a computer yet?③ever曾经句中Have you ever seen pandas?④never从不句中I have never been to Beijing.⑤just刚刚句中I have just done my work.⑥before以前句尾I have never been there before.⑦so far到目前为止So far he has learned 200 words.⑧how long多久How long have you lived here?⑨how many times多少次How many times has he been to Beijing?2两词组havegone to去了某地例：He has gone to Beijing (去了北京，没回) havebeen to去过某地例：He has been to Beijing. (去过北京，回了) 3两结构for two months for +一段时间 Jim has lived here for 2 months.since last year since +过去时间点Lucy has been in Beijing since 3 years ago. since 3 years agosince 1990since he came here since +过去时态句子 He has been in China since he came here.4如果句子里面没有时间状语，汉语意思能够加“已经”，往往用现在完成时态。
九年级unit13单元知识点
九年级unit13单元知识点九年级 Unit 13 单元知识点Unit 13的知识点主要包括以下内容：1. 词汇与短语这个单元我们需要掌握一些新的词汇与短语，比如：- advocate (v.) 提倡，主张- confront (v.) 面对，对抗- obesity (n.) 肥胖，过胖- sedentary (adj.) 坐着的，久坐的- consequence (n.) 结果，后果- investment (n.) 投资- boost (v.) 提高，增强- restrict (v.) 限制，约束- excessive (adj.) 过度的，过量的- intake (n.) 摄入，吸入2. 语法本单元的语法重点主要在于从句和它的用法。
具体包括：- 定语从句：介绍定语从句的定义和使用，包括关系代词和关系副词的运用。
- 状语从句：介绍状语从句的定义和使用，包括时间、条件、地点、原因、结果和让步等多种类型。
- 名词性从句：介绍名词性从句的定义和使用，包括主语从句、宾语从句和表语从句。
3. 阅读理解在本单元的阅读理解中，我们会使用所学的词汇和语法知识来理解文章的意思，并回答相关问题。
通过阅读不同类型的文章，可以提高我们的阅读理解能力和词汇理解技巧。
4. 写作技巧在写作方面，我们将学习如何写一篇辩论性或议论性的文章。
通过选取合适的观点、提供充足的论据和结构化的写作形式，我们可以有效地表达我们的观点和支持我们的论点。
5. 实践与应用在本单元中，我们将通过小组讨论、口头报告或辩论等形式，将所学的知识与实际应用相结合。
这样可以更好地培养我们的思维能力、口头表达能力和团队合作能力。
总结：九年级 Unit 13的单元知识点主要包括词汇与短语、语法（从句的用法）、阅读理解、写作技巧以及实践与应用。
通过学习这些知识点，我们可以提高我们的词汇量、语法能力、阅读理解能力、写作技巧，并将所学的知识应用于实际生活中。
九年级英语unit13重要知识点
九年级英语unit13重要知识点九年级英语Unit 13重要知识点Unit 13是初中英语教材中的一部分，涉及了一些与环境保护有关的话题。
在这个单元中，学生将学习如何谈论环境问题，如何提出和解决问题，并了解环境保护的重要性。
下面是该单元的一些重要知识点。
一、环境问题的表达在Unit 13中，学生将学习如何表达与环境问题相关的词汇与短语。
例如，"pollute"意为污染，"recycle"意为回收利用，"environment"意为环境等。
学生需要掌握这些词汇的拼写和用法，并能在适当的情境中运用它们。
二、提出环境问题与解决方法学生将学习如何提出环境问题并给出解决方法。
例如，他们可以说"Too much garbage is produced every day. We should encourage people to recycle"，意为每天产生太多垃圾，我们应该鼓励人们进行回收利用。
他们需要学会用简洁明了的语言描述环境问题，并提出解决办法。
三、环境保护的重要性在Unit 13中，学生将认识到环境保护的重要性。
他们将了解到环境问题对我们的生活和健康造成的影响。
通过学习相关的话题和案例，他们将体会到保护环境的必要性，并能够提出自己的观点和建议。
四、环境组织和活动在这个单元中，学生将了解一些相关的环境组织和活动。
例如，他们将学习到"Greenpeace"是一个重要的国际环保组织，他们常常参与各种环保活动，如清洁海滩、植树等。
学生需要了解这些组织的目标和使命，并对这些活动有一定的了解。
五、短文阅读与写作在Unit 13中，学生将进行一些短文的阅读与写作。
他们将学习如何理解有关环境问题的文章，并回答相关问题。
同时，他们还需要用英语写一篇关于环境问题的短文，表达自己的观点和建议。
这将提升学生的阅读理解和写作能力。
(完整word版)新版新目标英语九年级unit13知识点总结,推荐文档
Unit13 We’re trying to save the earth!Section A1. try to do =try one’s best to do 努力去做某事Every student should try to study hard in order to study in a university.为了进入大学学习，每个学生都应该努力学习。
2. be related to 与…有关I am not related to him in any way. 我和他无任何关系。
Everyone in this town should play a part in cleaning it up!3.play a part in在……方面起作用；参与某事A good diet plays a large part in helping people live longer健康的饮食在帮助人们长寿方面起着非常大的作用。
4. l itter rubbish garbage waste都可指垃圾不可数名词rubbish没用的东西(被扔或将要丢弃的无用的东西)不可回收litter (室内或公共场所)乱扔的废物(纸屑、不要的包装纸、废瓶等) 还可回收garbage 生活中的垃圾，包括厨房里的剩菜剩饭或者不能再用的食物Waste 任何被丢掉的东西Throw the rubbish out. 把垃圾扔出去。
The room is full of rubbish. 房间里堆满了垃圾。
Pick up your litter after a picnic. 野餐后将废弃物收拾好。
5.cut down 减少把...砍倒裁短缩减cut sb sth= cut sth for sb 为某人切某物cut sth into sth 把某物切成某物cut in 插话超车cut off 切断隔断断绝6. cost v. 花费；使付出指花费金钱，主语通常是物。
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九年级英语Unit13《We're trying to save the earth!》知识点1.现在进行时定义：表示说话时（瞬间）正在进行的动作，也表示目前或现阶段一直进行的动作。
结构: ①肯定句: 主语+ am/is/are + V-ing②否定句: 主语+ am/is/are + not + V-ing③疑问句: Am/Is/Are + 主语+ V-ing用法：1）表示说话时正在进行的，目前正在发生的动作。
①Look! The big bird is flying away. ②He is watching a movie now.2）表示目前一段时间内正在进行，但说话时可能没有进行的动作。
Right now I am studying Chinese by distance learning. 我现在正通过远程教育学习汉语。
1) 2)常带有表示目前时刻的时间副词, 如：now, right now, at the (very) moment, for the time being, at present, these days 及Look! Listen! ...3）与always, constantly, forever, all the time等副词连用，表示动作反复或习惯。
此时句子常含有说话者的强烈情感在内。
表达较强的“责备”或“表扬”之意①You are always changing your mind. 你总是主意不定。
(太烦人了)②He is always helping others.他总是帮助别人。
(他真是个好人)4）对于come, go, leave, arrive, start, fly, drive等表示位置移动的动词常可用进行时态表将来。
①He is leaving on Wednesday.②Mary isn’t here at the moment. She is coming later.2. used to do过去常常做某事见第四单元及use用法be/get used to doing 习惯于做某事be used to do=be used for doing 被用来做某事3. 被动语态见第五单元注意：接双宾语的词的被动语态；make /let /have sb do的被动语态；see/ hear /notice /find /observe/notice sb do 的被动语态；It’ssaid/reported/believed/supposed/well-known that；及无被动语态的三种情况（感官动词、不及物动词、sell/write等）4. 现在完成时:用法：①过去发生的动作对现在造成的影响或结果：强调结果Yesterday I finished my homework, that’s to say, I have finished my homework now.②过去已经开始一直持续到现在的动作或状态：强调继续I have lived here since 1990.现在完成时的构成have/has+过去分词现在完成时的四个基本句型肯定句He has finished the work.一般疑问句Has he finished the work?否定句He has not finished the work.两回答Yes ,he has. No, he hasn’t.特殊疑问句What has he done?在下列情形下用现在完成时1九词语①already 已经肯定句中或句尾I have already found my pen. = I have found my pen already.②yet已经否定句和疑问句句尾I have not finished the work yet.Have you bought a computer yet?③ever曾经句中Have you ever seen pandas?④never从不句中I have never been to Beijing.⑤just刚刚句中I have just done my work.⑥before以前句尾I have never been there before.⑦so far到目前为止So far he has learned 200 words.⑧how long多久How long have you lived here?⑨how many times多少次How many times has he been to Beijing?2两词组have<has>gone to去了某地例：He has gone to Beijing (去了北京，没回) have<has>been to去过某地例：He has been to Beijing. (去过北京，回了)精品文档3两结构for two months for +一段时间 Jim has lived here for 2 months.since last year since +过去时间点 Lucy has been in Beijing since 3 years ago. since 3 years agosince 1990since he came here since +过去时态句子 He has been in China since he came here.4如果句子里面没有时间状语，汉语意思能够加“已经”，往往用现在完成时态。
Have you lost your library book? 你已经弄丢了从图书馆借的那本书吗？5现在完成时态还常常用于下列句型They have planted many trees in the last/past few years.This is the best book I have ever read.It is the first time I have played the computer games.在现在完成时中，一次性动词不能和一段时间状语连用例：He has bought the book for 3 years.（错）因buy这个一次性动词不能和一段时间for 3 years连用, 改正的办法有：He has bought the book. (去掉一段时间for 3 years)He bought the book 3 years ago (改为一般过去时，使句子的意思不变)It’s/It has been 3 years since he bought the book. = 3 years has passed since he bought the book. （改为固定句型It is/It has been ---since---）He has had the book for 3 years.（用延续性动词have代替buy）另外①com e/arrive/get to/reach → be here I have come here for 3 years.（错）改为：I have been here for 3 years.②leave/go →be away He has left for 3 hours.（错）改为：He has been away for 3 hours.③begin/start →be onThe film has begun for 3 minutes.（错）改为：The film has been on for 3 minutes.④open →be open / close → be closedThe shop has opened for 3 years.(错)改为：The shop has been open for 3 years.⑤die →be deadHis father has died for 3 years.(错)改为：His father has been dead for 3 years.⑥finish/end→ be overHe has finished the work for 3 days.(错)改为：The work has been over for 3 days⑦join I have joined the army for 3 years.（错）改为：I have been in the army for 3 years.或I have been a soldier for 3 years.⑧buy /catch → haveI have bought the bike for 3 years.（错）改为：I have had the bike for 3 years.He has caught a cold for 3 days.（错）改为：He has had a cold for 3 days.⑨borrow → keepI have borrowed the book for 3 years. （错）改为：I have kept the book for 3 years.还有其它的归纳如下：break → be broken get up → be up marry → be married become → be lose → be lost5. 情态动词1) 情态动词本身有一定的词义，表示说话人的情绪、态度或语气，但不能单独作谓语，只能与其他动词构成谓语。
常见的有：can (could), may (might), must, need, shall (should), will (would)等。
2) 情态动词无人称和数的变化, 后接动词原形。
否定式是在情态动词后面加not。
个别情态动词有过去式形式, 也可用来表达更加客气、委婉的语气。
精品文档1.can和could的用法(1)can/could 表示“能力；许可；可能性”等。
could 为can 的过去式。
如：Can I use your bike?(2)can 用在疑问句中，表示征求意见、请求许可，答语仍用can; could 用在疑问句中，比can 更委婉、客气，是一种礼貌的说法，并不表示过去时态，答语用can，而不能用could。
如：—Could you tell me the way to the zoo?—Sorry. I can't. I'm new here。