人教版七年级上册英语Unit3知识点总结
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人教版七年级英语上册unit3考点汇总人教版七年级英语上册Unit3考点汇总(语法、短语、知识点、作文)Unit 3 Is this your pencil?Part 1 短语归纳pencil box 铅笔盒ID card 身份证lose sth 丢失某物find sth 拾到某物excuse me 打扰了puter game 电子游戏lost and found 失物招领he blue pen 这支蓝色的钢笔school ID card 学生证e-mail sb 给某人发电子邮件a set of keys 一串钥匙Anna’s book 安娜的书in the school library在学校图书馆Part 2 重点句子①—Is this your pencil? 这是你的铅笔吗?—Yes, it is. 是的,它是。
②—Is that your schoolbag? 那是你的书包吗?—No, it isn’t. 不,它不是。
③Thank you for your help. 谢谢你的帮助。
④How do you spell it?你怎么拼写它?⑤I must find it. 我必须找到它。
⑥Call me at 685-6034. 请打电话685-6034找我。
Part 3 语法考点01含be动词的一般疑问句①将含有be动词的陈述句转换一般疑问句将be动词(am, is, are)提到句首(首字母要大写),如果原句中的主语是第一人称要变为第二人称,句末加问号。
例:I am Zhang Yang → Are you Zhang Yang?That is my bike → Is that your bike?②含有be动词的一般疑问句的肯定回答与否定回答肯定回答:Yes, 主语+be否定回答:No, 主语+be例:—Is this your pen?—Yes, it is / No, it isn’t.02情态动词mustmust是情态动词,意为“必须,应当,一定”,无时态和人称的变化,后接不带to的动词不定式,表示义务、命令、或必要。
Unit 3单元知识清单Section A二、知识点清单1. It’s in front of the art building.in front of 在......前面;强调在某人或某物外部的前面in the front of 在......前部;强调在某物内部的前面The girl is in front of the bus.The girl is in the front of the bus.反义词:behind 在......后面2. The student centre is between the library and the gym.between prep. 在......之间,一般指在两者之间,当后面接代词时用宾格。
搭配 between ... and ... 在......和......之间3. What’s your new classroom like, Peter?what’s ... like? ......是什么样子的?用来询问天气情况、事物的外观或人的外貌、性格等。
like此处作介词,意为“像”。
large adj. 大的,大号的多指面积、空间、范围、数量等大big adj. 大的多指体积、程度、分量或重量上的大,其反义词是little或small。
4.Yes, we put up important notices there.put up 张贴;搭建,举起important adj. 重要的常作表语,也可作定语,放在所修饰词前面。
notice v. 注意到;意识到此处可作可数名词,意为“通知”.5.There are some pictures of famous people on the wall.on the wall 在墙上;某物(粘贴)在墙的表面in the wall 在墙上;某物(镶嵌)在墙的内部The clock is on the wall.There is a window in the wall.5. The teacher's desk is in the corner, under/ in front of a window.in the corner 在角落at/ on the corner 在拐角处,在转弯处6.Students sit between/ on chairs at long tables, but today there aren't any students.at a/ the table 在桌子旁边吃饭at table 在吃饭table 供用餐、会谈或消遣娱乐所用,通常没有抽屉。
!(知识讲解)Section A What is fun in a yard?potatoThat shop sells different kinds of pens.那家商店出售不同种类的钢笔。
【拓展】kind还可作形容词,意为“和蔼的;亲切的”,be kind to sb意为“对某人友好”。
常用句型:It is kind of sb to do sth.某人做某事真是太好了。
My teacher is kind to me.我的老师对我很好。
It's very kind of you to help me.你能帮我真是太好了。
2.Let me count.让我数一数。
(教材第16页1b)count[动词]数数Can you count from one to one hundred?你能从1数到100吗?3.Another duck is behind the big tree.另一只鸭子在大树后面。
(教材第16页1b)another[形容词]另一;又一(人或事物)此处作形容词,也可作代词,泛指同类事物中三者或三者以上中的“另一个”,只能修饰或代替单数可数名词。
Would you like another apple?你想再要一个苹果吗?I don't like this one.Please show me another.我不喜欢这个。
请给我看另一个。
【拓展】“another+数词+可数名词复数”意为“另外几个······”,相当于“数词+more+可数名词复数”。
We need another five persons to help us.=We need five more persons to help us.我们还需要五个人来帮忙。
4.What else can you see on the farm?你在农场里还能看到其他的什么东西?(教材第17页2b)else[副词]其他的;别的else用在something、anything、nothing等不定代词或疑问词的后面。
Starter Unit 3 Welcome!一、重点词组中文英文在院子里in a yard小鸡baby chickens苹果树apple trees去湖边go to the lake听音乐listen to music胡萝卜植物carrot plant看,瞧look at讲笑话tell jokes玩的开心have fun 把……介绍给……introduce ...to ...许多种many kinds of在农场上on the farm在树后面behind the tree另一只鸭子another duck其他什么what else二、重点句型1.- What's that? -It's a cat.2.- What are these? - They're carrots.3.- How many apple trees does Fu Xing's grandpa have? -Five.4.This is my uncle's farm.5.That's my uncle's home.6.The grass is so green.7.You can see many kinds of animals.8.He has pigs, horses, cows, ducks, sheep, and chickens.9.Another duck is behind the big tree.10.- What colour is his uncle's house? - Red.11.Peter's uncle has a big farm.12.They are black and white.13.How many ducks does my uncle have? -Twelve.三、重点语言点1. 指示代词①this这个,指代可数名词单数,常指离说话人较近的人或事物,其复数形式为these;②that那个,指代可数名词复数,常指离说话人较远的人或事物,其复数形式为those。
Unit3知识点汇总
Ⅰ.用法荟萃
about +doing sth 做某事怎么样
you for…=Thanks for 为……而谢谢你
do you spell… 你怎么拼写……
sb. at +电话号码拨打电话找某人
. must do sth. 某人必须做某事
sb. at+邮箱地址给某人发电子邮件
Ⅱ.重点短语
the school library 在学校图书馆
set of keys 一串钥匙
3. excuse me 请原谅;劳驾
about… ……怎么样
you for… 为……而谢谢你
TD card 一张学生卡;一张身份证
…for… 请求;恳求
Ⅲ.重点句型
this your pencil 这是你的铅笔吗
Yes,it is。
It’s mine/No,it isn’’s hers. 是的,它是我的/不,它是她的 this his green pen 这是他的绿色钢笔吗
blue pen is his. 蓝色的钢笔是他的
that your schoolbag 那是你的书包吗
these your books 这些是你的书吗
Are those her keys 这些是她的钥匙吗
Yes,they are/No,they aren’’re her s. 是的,它们是/不,他们不是,它们是她的。
you for your help. 谢谢你的帮助
You‘re welcome 不用谢。
’s this 这是什么
It’s a watch 它是一块手表
do you spell it 你如何拼写它。
新人教版七年级(上册)Unit 3 知识点总结Unit 3 My School一、课内短语归纳1. dining hall 餐厅2. in front of在……(外部的)前面3. in the front of在……(内部的)前面4. across from 在对面5. sports field 运动场6. put up 张贴;搭建7. desk drawer 书桌抽屉8. at the back(of) 在(…)后面9. reading corner 阅读角10. in the corner of 在……的角落里11. on/at the corner of 在…的转角处12. be famous as 作为…而出名13. be famous for因……而出名14. at school在学校15. be different from与……不一样16. do exercises 做体操17. change seats 换座位18. similar to类似的;相像的19. sounds fun 听起来很有趣20. tell sb(not)to do sth告诉某人(不要)做某事21. tell sb about sth 告诉某人关于某事22. bye for now再见23. most of.………的大多数/大部分24. How about ...? ...怎么样?25. share with a partner 和同伴分享26. raise the flag 升旗27. welcome to our school 欢迎来到我们学校28. show sb. around 带某人四处参观二、必背经典句1. --Where’s the dining hall? 餐厅在哪里?--It’s in front of the art building. 它在艺术楼前面。
2. --Is there a gym in this school? 学校里有体育馆吗?--Yes, there is./ No, there isn’t. 是的,有。
2023年人教版初中英语七年级上册Unit 3知识点讲义(含巩固练习)初中英语教研室整理Unit 3 Is this your pencil?Section A1.-- Is this your pencil? 译为“这是你的铅笔吗?”-- Yes, it is./ No, it isn’t. 译为“是的,它是./ 不,它不是.”当this/that在疑问句中作主语时,回答需要用it代替,切不可用this/that 回答。
Eg: -- Is that your schoolbag?-- Yes, it is./ No, it isn’t.2.-- Are these your books? 译为“这些是你的书吗?”-- Yes, they are./ No, they aren’t. 译为“是的,它们是./不,它们不是.”当these/those在疑问句中作主语时,回答需要用they代替,切不可用these/those回答。
Eg: -- Are those your rulers?-- Yes, they are./ No, they aren’t.-- What are these?-- They are erasers.3.Excuse me. 译为“劳驾,请原谅。
”该句子常用来向不熟悉的人打听情况或提出请求;也可用来客气地打断别人的话;也可用来礼貌的询问问题等。
Eg: Excuse me, could you tell me how to get to the bus station?译为“劳驾,请问你能告诉我怎么到公交车站吗?”4.What about ... = How about... 译为:“...怎么样/...呢?”注意:后面需要接名词、代词或动名词。
Eg: What/How about you? 译为“你呢?”What/How about this dress? 译为“这件连衣裙怎么样?”What/ How about going swimming? 译为“去游泳怎么样?”5.Thank you for your help. 译为“谢谢你的帮助。
Unit 3 知识归纳短语pencil box 文具盒;铅笔盒puter game 电脑游戏play puter games 玩电脑游戏play games 玩游戏watch the baseball game 看棒球比赛in the school library 在学校图书馆ask ... for ... 请求;恳求(给予)email sb. at+邮箱地址给某人发电子邮件到……call sb. at + 号码拨打号码……找某人a set of 一组;一套;一副 a bag of 一袋;一包 a box of 一箱two sets of 两套thank sb. for sth. 因为……而感谢某人thank sb. for doing sth. 因为做某事而感谢某人excuse me 劳驾;请原谅Lost and Found 失物招领处school thing 学习用品句型1.含有be动词的一般疑问句Is this/that your pencil?Yes, it is.No, it isn’t.2.What/How about………怎么样?/ ……好吗?/……呢?3.How do you spell… ? 你怎样拼写……?How do you spell “ruler”?RULER.练一练1.This is her eraser.(变为一般疑问句并做肯定回答).____________________________________________________________________________________2.This is his green pen. (变为一般疑问句并做否定回答)____________________________________________________________________________________3.Those are my dictionaries. (变为一般疑问句并做否定回答)___________________________________________________________________________________4.Is that her watch?(改为陈述句)_________________________________________5.She is my teacher. (变为一般疑问句并做否定回答)________________________________________________________________________________6.It is Linda’s phone number. (变为一般疑问句并做肯定回答)______________________________________________________________________________7.He’s an English boy. (变为一般疑问句并做肯定回答)______________________________________________________________________________8.Lucy and Betty are in Shanghai now.(变为一般疑问句并做否定回答)______________________________________________________________________________9.My grandparents are from the USA. (变为一般疑问句并做肯定回答)______________________________________________________________________________10.Is your sister’s ID card number 666? (做肯定回答并变为陈述句)______________________________________________________________________________11.My friend’s parents are in china. (变为一般疑问句并做肯定回答)______________________________________________________________________________12.Linda’s phone number is 1234567. (变为一般疑问句并做否定回答)______________________________________________________________________________13.He is my father. (变为一般疑问句并做肯定回答)______________________________________________________________________________14.My books are in the schoolbag. (变为一般疑问句并做肯定回答)______________________________________________________________________________15.Thank you for helping me. (改为同义句)_________ for you ______.16.These are my quilts. (改为同义句)These quilts _______ _______.语法知识人称代词口诀:动词之前用主格,动介之后用宾格形容词性物主代词和名词性物主代词口诀: 名前空格用形代,名代之后无名词。
七年级上册英语unit3知识点人教版Unit 3: I'm more outgoing than my sister.本单元主要介绍了形容词比较级和最高级的用法,以及一些儿童生活方面的话题,如个性特征、喜好、家庭成员和爱好等。
Part 1: Comparative Adjectives比较级是用来比较两个人、事物或者现象的程度的形容词。
常用的比较级有“bigger”,“stronger”,“faster”,“higher”等。
要注意的是,比较级后面必须加一个“than”来引出比较对象。
例句:1. My brother is taller than I am.2. This book is more interesting than that one.Part 2: Superlative Adjectives最高级是用来比较三个或以上人、事物或者现象的程度的形容词。
常用的最高级有“biggest”,“strongest”,“fastest”,“highest”等。
在用法上与比较级类似,也需要加一个“the”来引出最高级。
例句:1. Tom is the fastest runner in our class.2. This is the biggest park in our city.Part 3: Comparing People在人际交往中,了解自己和他人的优缺点是非常重要的。
比较级和最高级可以帮助我们更好地表达自己的观点。
例句:1. I am more outgoing than my sister.2. Jim is the funniest person in our group.Part 4: Describing Family Members在人际交往中,了解家庭成员的性格特征和兴趣爱好也是非常有用的。
比较级和最高级可以帮助我们更好地描述家庭成员。
例句:1. My dad is more hardworking than my mom.2. Sarah is the most creative person in our family.Part 5: Talking About Hobbies在业余爱好方面,每个人都有自己的偏好。
Unit 3 Is this your pencil?一、词汇与短语● 重点单词A部分1.pencil n. 铅笔2.book n. 书3.eraser n. 橡皮4.me pron. (I的宾格)我5.box n. 箱;盒6.thank v. 感谢;谢谢7.schoolbag n. 书包8.teacher n. 老师;教师9.dictionary n. 词典;字典10.about prep. 关于adv. 大约11.his pron. 他的12.yours pron. 你的;你们的13.mine pron. 我的14.for prep. 为了;给;对15.hers pron. 她的16.help v.&n. 帮助;援助17.excuse v. 原谅;宽恕18.welcome adj. 受欢迎的B部分1.baseball n. 棒球2.watch n. 表;手表puter n. 计算机;电脑4.ask v. 请求;要求;询问5.game n. 游戏;运动;比赛6.find v.(过去式、过去分词found)找到;发现7.card n. 卡片8.some adj. “一些;某些”。
pron. “有些;有的”9.notebook n. 笔记本10.classroom n. 教室11.ring n. 戒指12.e-mail v. 给……发电子邮件;n. 电子邮件13.bag n. 袋;包14.at prep. 按照;根据;在(某处、某时间或时刻)15.in prep. 在…里16.call v. (给……)打电话17.library n. 图书馆18.lost v.(动词lose的过去式)遗失;丢失19.must modal v. 必须20.set n. 一套;一副;一组● 重点短语A部分1.a pencil box 一个铅笔盒2.excuse me 劳驾;请原谅3.what about…… ……怎么样;……好吗?4.thank you for…… 为……而感谢你(们)5.his green pen 他的绿色钢笔6.her ruler 她的直尺7.Anna's book 安娜的书B部分1.an ID card 一张身份证/学生卡2.ask …… for…… 请求;恳求(给予)3.e-mail sb. at ……给某人发电子邮件到……4.call sb. at …… 拨打……与某人联系5.a set of 一套;一副;一组6.in the school library 在学校图书馆里7.school things 学习用品8.Classroom 7E 7E教室9.Lost and Found 失物招领处10.a computer game 一个电脑游戏机● 重点句子A部分1.Is this your pencil? 这是你的铅笔吗?2.--What about this dictionary? --It's Helen's.这本字典呢(是谁的)?--是海伦的。
01Unit3 单词请点击绿标播放pencil['pensl]n.铅笔book[bʊk]n.书eraser[ɪ'reɪsə]n.橡皮box[bɒks]n.箱;盒pencil box铅笔盒;文具盒schoolbag['skuːlˌbæg]n.书包dictionary['dɪkʃəneri]n.词典;字典his[hɪz]他的mine[maɪn]pron.我的hers[hɜːz]pron.她的excuse[ɪks'kjuːz]v.原谅;宽恕me[miː]pron.(I的宾格)我excuse me.劳驾;请原谅thank[θæŋk]v.感谢;谢谢teacher['tiːtʃə]n.老师;教师about[ə'baʊt]prep.关于What about…?(询问消息或提出建议)……怎么样?……好吗?yours[jʊəz]pron.你的;你们的for[fɔː]prep.为了;给;对thank you for…为……而感谢help[help]v.&n.帮助;援助welcome['welkəm]adj.受欢迎的You're welcome.别客气。
baseball['beɪsˌbɔːl]n.棒球watch[wɒtʃ]n.表;手表computer[kəm'pjuːtə]n.计算机;电脑game[geɪm]n.游戏;运动;比赛card[kɑːd]n.卡片ID card学生证;身份证notebook[ˈnəʊtbʊk]n.笔记本ring[rɪŋ]n.戒指bag[bæg]n.袋;包in[ɪn]prep.在……里library['laɪbrəri]n.图书馆ask[ɑːsk]v.请求;要求;询问ask…for…请求;恳求(给予)find[faɪnd]v.(过去式、过去分词found)找到;发现some[sʌm]adj.pron.一些;某些;有些;有的classroom['klɑːsrʊm]n.教室e-mail (=email)n.电子邮件at[æt]prep.(提供电话号码等时使用)按照;根据;在(某处、某时间或时刻) call[kɔːl]v.(给……)打电话lost[lɒst]v.(动词lose的过去式)遗失;丢失must[mʌst]modal v.必须set[set]n.一套;一副;一组a set of一套;一副;一组02Unit3 知识梳理Unit 3 Is this your pencil?【重点短语】1. your schoolbag 你的书包2. his green pen 他的绿色的钢笔3. Anna’s books 安娜的书4. her dictionary 她的字典5. ask the teacher for ... 向老师要……6. thank you for ... 因........而谢谢你7. computer games 电脑游戏8. in Classroom 7E 在7 E 教室里9. in the school library 在学校图书馆10. call me 给我打电话11. call me at 495-3539 拨4 9 5 -3 5 3 9打电话给我12. e-mail me at... 用……给我发电子邮件13. my school ID card 我的学生卡14. a set of keys 一串钥匙15. some keys 一些钥匙【重点句型】1. —What’s this? 这是什么?—It’s a watch. 一块手表。
Review of Unit 3Topic1 Do you have a pen pal ?1.-----Excuse me,could you please tell me your name ?请问,你可以告诉我您的名字吗?-----Sure.My name is Jane.2.⑴-----Could you help me with Chinese?=Could you help me to study Chinese. ?你能帮我学习它吗-----No problem./Yes,I can.没问题。
/是的,可以。
⑵---Could you swim when you were five years old ?---Yes,I could.3.He can speak Chinese.他能说汉语。
can是一个情态动词,表示说话人的语气和情感,它没有人称和单复数的变化,后面必须接动词原形4.Who is the letter from ?这是谁的来信?5.What does he say in the letter ?他在信上说什么了?6.want to do sth.想做某事want sb. to do sth.You are wanted on the phone.有人给你打电话。
例如:He wants to visit The Great Wall.他想参观长城。
7.Jane and I are classmates.我和Jane是同学。
8.He likesChinese very much.=He likes Chinese a lot.9.He doesn`t like pets at all.他一点也不喜欢宠物He likes vegetables a little.他有点喜欢蔬菜。
A little 意为“一点点”(表示程度)10.many students in our class 我们班里的许多学生a pen pal in Canada 加拿大的一个笔友11.speak English 说英语(强调用英语和别人交谈,不涉及内容)Say it in English 用英语说这件事(强调内容Talk to/with sb. 和某人交谈Talk about sb./sth.谈论某人或某事12.We often help each other and learn from each other. 我们经常互相帮助,互相学习。
七年级英语上册Unit3知识点【Useful expressions】dining hall 餐厅in front of在……(外部的)前面in the front of在……(内部的)前面across from 在对面sports field 运动场put up 张贴;搭建desk drawer 书桌抽屉at the back(of)在(…)后面reading corner 阅读角in the cormer of在……的角落里on/at the corner of在…的转角处be famous as 作为…而出名be famous for因……而出名at school在学校be different from与……不一样do exercises 做体操change seats 换座位similar to类似的;相像的sounds fun 听起来很有趣tell sb(not)to do sth告诉某人(不要)做某事tell sb about sth 告诉某人关于某事bye for now再见most of.………的大多数/大部分How about ...? ...怎么样?share with a partner 和同伴分享raise the flag 升旗welcome to our school 欢迎来到我们学校show sb. around 带某人四处参观【Target sentences】---Where's the dining hall?餐厅在哪里?---It's in front of the art building.---Is there a gym in this school?---Yes, there is./ No, there isn't.What's your new classroom like?There are 40 student desks in the roomWhat's special in your classroom?There's a smart whiteboard next to the blackboard.There is a garden between the school hall and the science building. How about your school?Thanks for your email.I'd like to tell you about my school.【Language points】1.What's your new classroom like, Peter?be like 像...---What’s the weather like?---It’s sunny.---What's your sister like?---She is a little shy.2.There are 40 student desks in the room.there be句型表示“某处有(存在)某人或某物”,其结构为“Thereis/are+某人/物+地点状语.”。
人教版七年级上册英语知识点全第三单元知识点unit 3 知识点Unit 3: HobbiesIn this unit, we will focus on the following English knowledge points related to hobbies.1. Vocabulary:- Hobbies: Learn and practice different words and phrases related to hobbies such as painting, listening to music, playing sports, etc.- Adjectives: Understand and use adjectives to describe hobbies, such as exciting, interesting, relaxing, etc.- Verbs: Learn verbs commonly associated with hobbies, such as enjoy, love, like, dislike, etc.2. Grammar:- Simple Present Tense: Learn and apply the simple present tense to talk about hobbies, habits, and routines.- Verb "do": Understand the usage of the verb "do" with different hobbies. For example, we say "do sports" or "do yoga."- Adverbs of Frequency: Learn adverbs, such as always, usually, often, sometimes, and never, to talk about the frequency of hobbies.3. Sentence Patterns:- "What do you like doing/ What are your hobbies?": Learn how to ask and answer questions about personal preferences and hobbies.- "I enjoy/like/love + verb-ing": Practice expressing personal enjoyment or preferences for different hobbies.- "I don't like/dislike + verb-ing": Learn how to express dislikes or things one does not enjoy doing.- "How often do you...?": Learn how to ask and answer questions about the frequency of hobbies or activities.4. Listening and Speaking Skills:- Improve listening skills by listening to dialogues, conversations, and interviews related to hobbies.- Practice speaking skills by engaging in pair or group discussions about personal hobbies and interests.5. Reading and Writing Skills:- Build reading skills by reading texts, passages, and articles about various hobbies.- Develop writing skills by writing short paragraphs or essays about personal hobbies, preferences, or describing a typical day.6. Cultural Knowledge:- Explore different cultures, countries, and people's hobbies around the world.- Understand the importance of hobbies in maintaining a healthy lifestyle and work-life balance.Conclusion:This unit covers essential English knowledge points related to hobbies. By learning and practicing the vocabulary, grammar, sentence patterns, listening, speaking, reading, writing, and cultural knowledge associated with hobbies, students will be able to express their own preferences and discuss various hobbies confidently. It is important to remember that hobbies not only provide entertainment but also help in personal growth and well-being.。
Unit 3
1.短语归纳:
pencil box 铅笔盒excuse me 打扰了the blue pen 这支蓝色的钢笔
Anna’s book 安娜的书ID card 身份证school ID card 学生证computer game 电子游戏in the school library 在学校图书馆ask…for …向…要…
e-mail sb 给某人发电子邮件call sb 给某人打电话lose sth 丢失某物
find sth 拾到某物 a set of keys 一串钥匙lost and found 失物招领
2.必备典句:
1.—Is this your pencil? 这是你的铅笔吗?—Yes, it is. 是的,它是。
2.—Is that your schoolbag? 那是你的书包吗?—No, it isn’t. 不,它不是。
3.It’s mine / his / hers. 这是我的/他的/她的。
4.They are hers. 它们是她的。
5.Is that yours? 那是你的吗?
6.What about this dictionary? 这本字典呢?
7.Thank you for your help. 谢谢你的帮助。
8.How do you spell it?你怎么拼写它?
9.I must find it. 我必须找到它。
10.Call me at 685-6034. 请打电话685-6034找我。
3.含be动词的一般疑问句
1.将含有be动词的陈述句转换一般疑问句
将be动词(am, is, are)提到句首(首字母要大写),如果原句中的主语是第一人称要变为第二人称,句末加问号。
例:I am Zhang Yang →Are you Zhang Yang?
That is my bike →Is that your bike?
2.含有be动词的一般疑问句的肯定回答与否定回答
肯定回答:Yes,主语+be
否定回答:No, 主语+be
例:—Is this your pen? —Yes, it is / No, it isn’t.
4.I must find it. 我必须找到它。
must是情态动词,意为“必须,应当,一定”,无时态和人称的变化,后接不带to的动词不定式,表示义务、命令、或必要。
例:You must be here on time. 你必须按时来这儿。
must的否定形式是mustn’t=must not , 含有must的一般疑问句是把must提至句首,其肯定回答时yes,sb must;否定回答:No, sb needn’t.
例:—Must I speak English? 我必须讲英语吗?
—Yes, you must./ No, you needn’t. 是的,你必须。
/不,你不必。
5.A set of keys 一串钥匙
a set of 意为“一套,一组,一列”,a set of +复数名词作主语时,谓语动词用单数!
例:The set of keys is Tom’s. 这串钥匙是汤姆的。