(完整版)人教版九年级英语第十三单元知识点总结
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九年级人教版英语unit13知识点Unit 13: Knowledge for 9th GradersAs students progress through their academic journey, they encounter various subjects that challenge their intellect and broaden their horizons. Among these subjects, English serves as a powerful tool for effective communication, cultural appreciation, and personal growth. Let us delve into Unit 13 of the 9th-grade People's Education Press English textbook to explore some key aspects.1. Vocabulary Expansion:Unit 13 introduces students to a plethora of new words and phrases associated with the theme of "Holidays and Celebrations." Understanding and mastering new vocabulary is crucial for comprehending texts in English. Whether it be words like "traditional," "parade," or "costume" or phrases like "come along," "take part in," or "dress up," students must actively practice incorporating them into their written and spoken language.2. Grammar:Grammar forms the backbone of any language. In Unit 13, students dive into the realm of the Present Perfect Tense. This tense is essentialfor expressing actions that have occurred in the past but have a connection to the present. Through examples such as "I have seen this movie before" or "She has already finished her homework," students learn to convey experiences, accomplishments, and unfinished actions in a concise manner.3. Reading Comprehension:Reading comprehension is a crucial skill for students to cultivate. In this unit, students explore various texts related to holidays and celebrations. They learn to identify main ideas, infer meaning from context, and analyze the author's purpose. By practicing comprehension strategies, such as skimming and scanning, students improve their ability to extract information efficiently from written texts.4. Listening Skills:Effective listening skills are invaluable for successful communication. Unit 13 provides ample listening activities that challenge students' ability to understand spoken English from different accents and contexts. By engaging in various tasks, such as listening for specific details or completing gaps in a transcript, students develop their auditory processing skills, sharpen their focus, and enhance their overall listening comprehension.5. Speaking and Presentation:In Unit 13, emphasis is placed on developing students' speaking and presentation skills. Through interactive activities like group discussions, role-plays, and presentations, students gain confidence in expressing their opinions, supporting their arguments, and engaging in meaningful conversations. These exercises help students break free from the fear of making mistakes and foster an environment of active participation and collaboration.6. Writing Skills:Writing is a cornerstone of effective communication. In this unit, students refine their writing skills by crafting compositions centered around holidays and celebrations. They learn to organize their ideas coherently, incorporate appropriate vocabulary and grammar, and craft engaging introductions and conclusions. Through practice and feedback, students gain the necessary skills to express themselves in writing effectively.Unit 13 of the 9th-grade People's Education Press English textbook provides a comprehensive framework for students to acquire language proficiency, critical thinking skills, and cultural awareness. By expanding vocabulary, understanding grammar concepts, developing reading comprehension, honing listening skills, enhancing speaking andpresentation abilities, and refining writing skills, students embark on a journey of linguistic growth and self-expression. With dedication, perseverance, and guidance from their teachers, students can harness the power of Unit 13 to become confident English speakers, writers, and global citizens.。
人教版九年级下册英语第十三单元2b知识点九年级下册英语第十三单元2b知识点介绍在九年级下册英语教材的第十三单元中,2b是一个重要的知识点,它涉及到动词的时态和用法。
本文将重点介绍2b的相关内容,并结合一些具体的例子进行讲解和解析。
在2b部分,学生需要遵循的规则是:主将从现,从将从过。
这个规则其实非常简单易懂,下面我们一起来深入了解一下。
首先,我们来看主将从现的用法。
它表示将来某个时间会发生的动作或状态。
例如,I will go to the bookstore tomorrow.(明天我将去书店。
)这句话中的will go表示了将来在明天要去书店的动作。
在这里,will代表了主动表示愿望、打算或预测的情态动词,go则是动作的主语。
除了表示将来的动作或状态,主将从现还可以用于提出请求、建议、允许、命令等。
例如,Can you help me with my homework?(你能帮我做作业吗?)这里的can表示请求。
再比如,Youshould stop smoking.(你应该戒烟。
)这里的should表示建议。
在这些句子中,情态动词的使用可以让语句更有礼貌和合适。
接下来,我们来看从将从过的用法。
从将从过表示一个动作或状态会在过去某个时间发生,它通常由助动词would / could / might等和动词的过去式构成。
例如,He said that he would visit his grandparents next week.(他说下周他要去拜访他的祖父母。
)这里的would visit表示过去将来在下周要拜访的动作。
从这个例子可以看出,从将从过的语态通常用在间接引语中。
另外,还要注意,由时间、条件从句引导的主将从现和从将从过的用法也需要掌握。
例如,If it rains tomorrow, I will stay at home.(如果明天下雨,我将待在家里。
)这里的if引导了一个条件从句,后面的will stay表示根据情况将要发生的动作。
人教版九年级英语第十三单元2b知识点第十三单元2b知识点:写作技巧与艺术创造力是写作的关键,在英语写作中同样适用。
本文将介绍人教版九年级英语第十三单元2b知识点,帮助学生提高英语写作的能力。
1. 使用丰富的词汇表达词汇是写作的基础,只有拥有丰富的词汇才能更准确地表达自己的思想和观点。
学生可以通过背单词、阅读英文课文和英文文章来积累词汇量。
此外,还可以使用词汇卡片或者词汇表来记忆和复习单词。
2. 熟练使用语法语法是英语写作中非常重要的一部分。
学生应该熟练掌握各种语法规则,包括时态、语态、动词的一致性、代词的使用等等。
较为常见的错误包括主谓不一致、时态混乱、句子结构复杂或者常用的句型错误。
定期复习语法知识,并通过练习题的方式加深理解。
3. 确定写作目标和对象在进行英语写作时,首先需要明确写作的目标和对象。
这有助于学生明确表达自己的思想,并使写作更准确、更有针对性。
写作目标可以是描述、说明、辩论等等,而对象可以是同学、老师或者网络读者等等。
4. 运用合适的连接词连接词可以帮助学生更流畅地表达自己的思想。
学生可以使用不同的连接词来表达因果关系、转折关系、对比关系等,从而使文章更具条理和逻辑性。
较常见的连接词包括but, however, therefore, because等等。
5. 学会构建良好的段落良好的段落结构可以使文章更易读和易懂。
学生应该学会如何引出主题句,并且围绕主题句展开论述。
一般而言,一个段落只应该讲述一个主要观点,并且应该有明确的开头和结尾。
6. 避免冗长和复杂的句子在英语写作中,冗长和复杂的句子会给读者带来困扰。
学生应该尽量使用简洁明了的句子结构来表达自己的观点。
同时,使用具体的词汇和简洁的表达方式来替代冗长和晦涩的表达。
7. 适当使用修辞手法修辞手法可以使文章更生动有趣。
学生可以运用比喻、夸张和对比等修辞手法来增加文章的吸引力。
然而,学生应该注意使用修辞手法的适度,过度使用会对文章产生负面影响。
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。
UNIT1 语块1. as well 也2. a piece of cake 小菜一碟3. be stressed out 紧张的4. body language 身势语;肢体语言5. bit by bit 一点一点地6. be born with 天生具有7. connect ... with ... 把……和……连接 / 联系起来8. do grammar exercises 做语法练习9. draw mind maps 画思维导图10. give a report 作报告11. learning habits 学习习惯12. make mistakes 犯错误13. make word cards 制作单词卡片14. on one’s own独自15. pay attention to 注意;关注16. read aloud 朗读17. speaking skills 口语技能18. take notes 记笔记19. the secret to (doing) sth. (做)某事的秘诀20. word by word 逐字地21. work with a group 小组学习22. word groups 意群23. write down key words 写下关键词句子和对话1. —How do you study for a test?—I study by working with a group.2. The more you read, the faster you’ll be.3. I was afraid to ask questions because of my poor pronunciation.4. Even if you learn something well, you will forget it unless you use it.5. I don’t know how to increase my reading speed.6. Practice makes perfect.UNIT21. as a result 结果2. admire the moon 赏月3. call out 叫出4. end up 最终成为;最后处于5. eat out 出去吃饭6. each other 互相7. Father’s Day父亲节8. lay out摆开;布置9. live forever 长生不老10. make money 赚钱11. Mother’s Day母亲节12. over and over again一遍又一遍;反复地13. play a trick on sb. 捉弄某人14. put on 增加(体重);发胖15. remind ... of 提醒;使想起16. shoot down 击落17. trick or treat 不招待就捣乱句子和对话1. —What do you like best about the Dragon Boat Festival?—I love the races. I think that they’re fun to watch.2. People go on the streets to throw water at each other.3. I wonder whether June is a good time to visit Hong Kong.4. He warns Scrooge to change his ways if he doesn’t want to end up like him.UNIT31. ask for help 寻求帮助2. at first 首先;最初3. between ... and ... 在……和……之间4. e on 快点吧;加油5. municate with sb. 与某人交流、沟通6. depend on 依靠;信赖7. for the first time 第一次8. on one’s right 在某人的右边9. on one’s way to ... 在某人去……的路上10. pardon me 抱歉,对不起;什么,请再说一遍11. parking lot 停车场;停车区12. pass by 路过;经过13. spend some time (in) doing sth. 花费时间做某事14. start with ... 以……开始15. such as 例如;像……这样句子1. Excuse me, could you please tell me how to get to the bookstore?2. I’m excited to try the rides!3. How about that new ride over there?4. Why don’t we e back here for dinner later?5. It is not enough to just ask a question correctly.1. We’ve given her some advice, but I don’t know ______ she’ll accept it.(2012 山东潍坊)A. whatB. whereC. whetherD. which1. ______ weather it is today! (2014 湖北十堰)A. What hotB. How hotC. What a hotD. How a hot2. ______ role she played in the movie! That’s why she has a lot of fans. (2014 江苏苏州)A. How interestingB. How an interestingC. What interestingD. What an interesting3. ______ nervous the girl was! She could not fall asleep all night. (2014 湖南长沙)A. WhatB. What aC. How4. Look! ______ happily the children are playing over there! (2014 甘肃平凉)A. HowB. WhatC. What aD. How a2. Our teacher often tells us ______ we should help each other.A. thatB. whenC. whether3. John asked me ______ I could go to his birthday party.A. ifB. thatC. where4. Our teacher said the earth ______ round the sun. (2014 四川巴中)A. traveledB. travelsC. travel5. —Excuse me, could you please tell me ______? (2014云南昆明)—Yes, there is a history museum.A. how often do you go to the history museumB. are there any good museums in KunmingC. how long it takes to get to the history museumD. if there are any good museums in Kunming(1) I’m going to take him to some famous hutongs ______ he can learn more about China.A. becauseB. whenC. so thatD. as if(2014江苏盐城)(2) The movie is ______ wonderful ______ I want to see it again.A. too; toB. so; thatC. as; asD. so; as(2014 四川泸州)(3) Mark is ______ popular a boy ______ many students are around him.A. such; thatB. such; asC. so; asD. so; that(1) This morning I ______ some new restaurants on the Internet for I wanted to take Mia to a nice restaurant for her birthday.A. picked upB. looked upC. cleaned upD. gave up(2013浙江杭州)(2) If you want to know what the words mean, you can ______ in the dictionary.A. look it upB. look up itC. look them upD. look up them—What about ______ a rest?—OK! Let’s go for a walk.A. to takeB. takeC. taking(1) You have to be ______ and wait until I finish my work.A. patientB. strictC. honestD. active(2014江西南昌)(2) Our math teacher ______ us, so we all like her.A. is worried aboutB. is patient withC. is bored withD. is different from(1) Keep on. Don’t stop. The ______ you climb, the ______ you will see.A. highest; farthestB. highly; fartherC. high; farD. higher; farther(2014云南) (2) —It’s smoggy these days. That’s terrible!—Yes, I hope to plant trees. ______ trees, ______ air pollution.A. The more; the fewerB. The less; the moreC. The less; the fewerD. The more; the lessRemember to return the book to the library when you finish ______ it.A. readB. to readC. readingD. reads(1) 妈妈提醒我要改变饮食习惯。
九年级英语第十三单元B部分知识点第十三单元B部分知识点在九年级的英语学习中,第十三单元B部分是一个非常重要的部分,其中包含了许多重要的知识点。
在这个部分里,我们将学习有关健康和生活习惯的内容。
在本文中,我们将深入研究这些知识点,帮助大家更好地掌握这一部分的内容。
首先,我们将学习关于健康饮食的知识。
健康饮食对于我们的身体健康非常重要。
我们应该保持均衡的饮食,摄取适量的蛋白质、碳水化合物和脂肪。
我们应该多吃新鲜的水果和蔬菜,少吃油炸食品和高糖食品。
此外,我们还应该控制食物的摄入量,避免过量饮食和暴饮暴食。
只有这样,我们才能保持健康的身体和良好的体重。
其次,我们将探讨身体锻炼的重要性。
适当的身体锻炼对于我们的健康至关重要。
每天进行适量的运动可以帮助我们增强肌肉力量,改善心肺功能,预防肥胖,提高免疫力,并减少患心脏病、高血压和糖尿病的风险。
我们可以选择喜欢的运动方式,如慢跑、游泳、打篮球等。
在锻炼的过程中,我们要确保注意安全,适当休息,避免过度运动。
除了饮食和身体锻炼,我们还要注意良好的卫生习惯。
保持良好的卫生习惯对于预防疾病和保持身体健康非常重要。
我们应该经常洗手,特别是在接触食物、外出回家后,或是打喷嚏、咳嗽后。
我们还要保持居住环境的清洁卫生,定期打扫房间,保持通风,避免病菌滋生。
此外,每天要保持充足的睡眠,充实的睡眠可以帮助我们恢复体力和提高免疫力。
在学习的过程中,我们还会学习如何采取积极的生活态度。
积极的生活态度对于我们的心理健康非常重要。
我们要学会积极地面对生活中的困难和挑战,保持乐观的态度。
当我们遇到困难时,我们可以尝试解决问题,不要轻易放弃。
我们还可以寻求支持和帮助,与他人交流,分享自己的感受和困惑。
此外,我们还要保持良好的时间管理和学习习惯,合理安排时间,提高学习效率。
在整个学习的过程中,我们要不断地反思并改进自己的学习方法。
我们可以尝试不同的学习策略,找到适合自己的方法。
我们可以使用记忆法,如联想记忆、图片记忆等,帮助我们更好地记忆词汇和句子。
人教版九年级英语第十三单元知识点及检测1、v、乱扔 n、垃圾;废弃物2、 n、底部;最下部3、n、渔民;钓鱼的人4、 n、煤;煤块5、adj、公众的;公共的 n、民众;百姓6、adj、丑陋的;难看的7、n、优点;有利条件8、 v、花费n、花费;价钱9、adj、木制的;木头的10、adj、塑料的n、塑料;塑胶11、有关系,作用,影响12、 n、鲨鱼13、 n(、鱼)鳍14、(短语)割掉;砍掉15、 n、方法;措施16、 adj、残酷的;残忍的17、 adj、有害的18、 n、链子;链条19、 n、生态系统20、adj(、数量等)减少的;低的;矮的21、n、工业;行业22、 n、法律;法规23、 adj、可重复使用的;可再次使用的24、 v、承担得起(后果);买得起25、 n、运输业;交通运26、 v、回收利用;再利用27、 n、餐巾;餐巾纸28、(短语)颠倒;倒转29、n、大门30、n、瓶;瓶子31、n、负责人;主席;总统32、 n、灵感;鼓舞人心的人(或事物33、n、金属34、n、创造力;独创性一、本单元语法复习:(1)现在进行时(1)含义:表示正在发生或进行的动作。
(2)基本结构:主语 + be + 现在分词(be 的形式随主语的变化而变化)(3)基本用法:①表示现在正在进行的动作。
特征:常常与now 或具体的时间连用,有时句中会有感官动词来提示,或通过上下文来暗示。
②表示现阶段一直进行的动作。
这类动词常常是延续性动词。
常于at present, this week, these days等连用。
③表示主语的特征、性格、能力等(2)现在完成时(1)含义:表示过去发生的动作对现在还有影响。
(2)基本结构:主语 + have/ has + 过去分词(3)基本用法:①表示过去发生的动作,但强调对现在产生影响。
特征:不能与表示具体的时间状语连用。
②表示过去发生的动作或存在的状态一直延续到现在,还可能继续下去。
人教版英语九年级全一册第十三单元重点短语归纳Save the earth is a common topic nowadays。
People aremore aware of the environmental problems such as noise n。
air n。
and water n。
We need to ___。
One way to do this is to cut down the use of cars and use public ___ instead。
This is not only goodfor the environment but also good for our health.We can also make a ___。
These items are harmful to thefood chain and can be ___。
We should take part in recycling programs and not throw away things that can still be used。
By doing these things。
we can help to save the earth.In our daily life。
we can also take n to save energy。
We can turn off the lights and appliances when we are not using them。
We can also use energy-saving light ___。
By doing these small things。
we can save energy and ce our carbon footprint.Learning English is important。
and we need to know some basic phrases and ns。
人教版九年级英语第十三单元知识点总结 Unit13.We’re trying to save the earth! 一.单词 litter bottom fisherman coal ugly advantage cost wooden plastic takeaway bin shark fin cruel harmful be harmful to at the top of chain the food chain ecosystem industry law scientific take part in afford turn off reusable pay for take action transportation recycle napkin throw away put sth to good use pull...down upside gate bottle president inspiration iron work metal bring back creativity 二.1.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-ing ② 否定句: 主语 + am/is/are + not + V-ing ③ 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。 ① Look! The big bird is flying away. ② He 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 ① You are always changing your mind. 你总是主意不定。(太烦人了) ② He 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。 ① He is leaving on Wednesday. ② Mary isn’t here at the moment. She is coming later. 2. used to do见第四单元及use用法 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 sb do 的被动语态;It’s said/reported/believed/supposed/well-known;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 ago
since 1990 since 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 ①come/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 on The film has begun for 3 minutes.(错) 改为:The film has been on for 3 minutes. ④open →be open / close → be closed The shop has opened for 3 years.(错) 改为:The shop has been open for 3 years. ⑤die →be dead His father has died for 3 years.(错) 改为:His father has been dead for 3 years. ⑥finish/end→ be over He has finished the work for 3 days.(错) 改为:The work has been over for 3 days ⑦join 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 → have I 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 → keep I 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 lost 5. 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。 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。 [注意] can 和could 只能用于现在时和过去时两种时态,将来时中用 be able to。另外, can't 可表示否定推测。如:That ______ be Mr Wang. He has gone to Beijing。 2.may和might的用法 may/might 意为“可以”,表示同意、许可或请求对方许可,也可表示祝愿。may的否定形式为 may not。might 是may 的过去式,有两种用法:一种表示过去式;一种表示虚拟语气,使语气更加委婉、客气,或表示可能性更小。以may开头的一般疑问句,其否定回答用mustn't, 而不用 may not。如:______ I use your pen? 我可以用你用的钢笔吗? You may put on more clothes. May you be happy! Might I borrow some money now?He might be alive. 3.must的用法 must 意为“必须,一定,准是”,表示说话人认为有必要做某事,或命令、要求别人做某事以及对事物的推测。否定形式mustn't, 表示“不得”,“一定不要”。如: I ______ finish my work today。You mustn't drive after drinking。 (1)must 与 have to 的区别: must 表示说话人的主观意愿;have to 表示客观需要。如: I must do my homework first。It is raining hard outside; I _____ stay at home。 (2)回答由must 引导的疑问句的提问 ①肯定回答:Yes, …must. 如: —Must I go home now? —Yes, you must. ②否定回答:No,…needn't./No,…don't/doesn't have to. —Must I go home now? —No, you __ ____. (3)must 表示对事物的推测,意为“想必;一定”,只用于肯定句中;表“推测”时,情态动词与动词原形,(常为be动词)连用,如:The man must be our teacher。