Unit 3 Keep fit 核心知识点精讲精练 2(Grammar)-2024-2025学年七年级英语下册教材核心知识全解（人教版2024）

Unit 3 Keep fit 核心知识点精讲精练 2 (Grammar) 【主要内容】 · 【单元核心知识点精讲精练】每个单元按照教材安排分为Section A；Grammar和Section B三个部分。 · Grammar 精讲本单元的重点语法，讲解部分配有随学随练。 · 本资料设置了单元语法基础练习和单元语法提升练习，丰富多样的习题帮助学生更好地学习掌握并英语语法知识。 1、 单元重点语法解析 频度副词 频度副词表示某一动作频率的副词，常见的频度副词有usually, always, often, sometimes,never等。 常用来回答how often的提问。 1. 常用频度副词 always总是（100%）＞usually通常（80%）＞often经常（60%）＞sometimes有时（40%） ＞hardly ever/seldom很少（10%）＞never从不（0%） 2. 频度副词的位置 (1) 频度副词一般放在实义动词前。 She seldom goes to the movies. 他很少看电影。 (2) 频度副词位于be动词、助动词、情态动词等之后。 He is never late for school. 他上学从不迟到。 You should often visit your grandparents. 你应当经常拜访爷爷奶奶。 We will never forget the days. 我们永远不会忘记这些日子。 (3) sometimes位置比较灵活，在句首，句中或句末均可以。often也常位于句末。 Sometimes we go to park. 有的时候我们去公园 Lucy calls me often. 露西经常给我打电话。 3. 对频度副词的提问 对频度副词进行提问常用疑问词组how often ，表示“多久一次”。 —How often do you play football? 你多久踢一次足球？ —Often. 经常 4. 其他表示频度的方式 (1) every+day/month/year等：every day每天；every month每个月；every year每年... (2) 次数+时间段：once a month一个月一次；twice a year一年两次；three times a week一周三次... 注意：三次及三次以上用“基数词+times”表示。 [随学随用] 单项填空。 (1) My mother ________ uses electronic products(电子产品) because she thinks they are bad for her eyes. A. usually B. seldom C. often D. always 【答案】B 【解析】句意：我妈妈很少使用电子产品，因为她认为电子产品对她的眼睛有害。 考查副词辨析。usually通常；seldom很少；often经常；always总是。根据“because she thinks they are bad for her eyes”可知，对眼睛有害，所以很少用，故选B。 (2) My father usually ________ to work. A．drive B．drives C．drove D．is driving 【答案】B 【详解】句意：我父亲通常开车去上班。 考查动词时态。根据“usually”可知，本句描述规律性动作，故为一般现在时，主语是第三人称单数，谓语动词用其单三形式。故选B。 (3) —Does your brother ________ play basketball after work? —Yes, he plays it every day. A．always B．never C．hardly ever D．sometimes 【答案】A 【详解】句意：——你哥哥下班后总是打篮球吗？——是的，他每天都打。 考查副词辨析。always总是；never从不；hardly ever几乎从不；sometimes有时。根据答语“every day”可知，哥哥打篮球的频率较高，用always。故选A。 (4) —Sarah was late for the movie last night. —I’m not surprised at all. She is ________ on time. A．often B．always C．sometimes D．never 【答案】D 【详解】句意：——莎拉昨晚看电影迟到了。——我一点也不惊讶。她从不准时。 考查频率副词。often经常；always总是；sometimes有时候；never从不。根据答语中的“I’m not surprised at all.”可知此处指她从未按时过。故选D。 (5) —How often does Gina take the bus to school? —She ______ takes the bus. She enjoys walking there. A．hardly ever B．always C．often D．usually 【答案】A 【详解】句意：——吉娜多长时间坐一次公共汽车去学校？——她几乎从不坐公共汽车。她喜欢步行去那里。 考查频度副词。hardly ever几乎不；always总是；often经常；usually通常。根据后句“She enjoys walking there. 她喜欢步行去那里。”可判断，她几乎不坐公共汽车。故选A。 (6) English people _________use “Mrs” before a woman’s first name A．usually B．often C．sometimes D．never 【答案】D 【详解】试题分析：usually，通常；often，经常；sometimes，有时，偶尔；never，从来没有。结合常识可知英国人的习惯表达方式是，在姓的前面加Mrs来表示对女人的尊称。first name是名字，last name是姓。故选D. (7) Lucy likes staying at home. She ________ goes travelling during holidays. A．often B．seldom C．sometimes D．usually 【答案】B 【详解】句意：露西喜欢呆在家里。她假期很少去旅行。 考查频度副词辨析。often经常；seldom很少；sometimes有时；usually通常。根据“Lucy likes staying at home.”可知，她应该是“很少”去旅行。故选B。 (8) I __________ eat dumplings for lunch. A．sometime B．sometimes C．some time D．some times 【答案】B 【详解】句意：我有时午餐吃饺子。 考查副词辨析。sometime在某时；sometimes有时；some time一段时间；some times几次。根据“I…eat dumplings for lunch.”可知，此处是指我有时午餐吃饺子。故选B。 物主代词 1. 物主代词是表示所属关系的代词。物主代词分形容词性物主代词和名词性物主代词。物主代词有人称和数的变化。 人称 形容词性物主代词 名词性物主代词 单数 复数 单数 复数 第一人称 my 我的 our 我们的 mine 我的 ours 我们的 第二人称 your 你的 your 你们的 yours 你的 yours 你们的 第三人称 his 他的 her 她的 its 它的 their 他们的 their 他们的 their 他们的 his 他的 hers 她的 its 它的 theirs 他们的 theirs 他们的 theirs 他们的 2. 形容词性物主代词相当于形容词，放在名词前作定语。 Is this your tennis ball? 这是你的网球吗？ These are his pens. 这些是他的钢笔。 3. 名词性物主代词相当于名词，后面不再跟名词。为避免重复，经常使用名词性物主代词来代替“形容词物主代词+名词”。 Look at the red bag. It’s mine. 看那个红色的包。它是我的。 I can’t find my dictionary. May I use yours? 我找不到我的词典。我可以用你的(词典)吗？ [随学随练] 单项填空。 (1) Hi, sir. This is________ learning plan for this month. A．I B．my C．me D．mine 【答案】B 【详解】句意:你好，先生。这是我这个月的学习计划。 考查代词辨析。I我，主格;my我的，形容词性物主代词;me我，宾格;mine我的，名词性物主代词。根据“learning plan"可知，空处修饰学习计划，应用形容词性物主代词my作定语。故选B。 (2) —Eric can’t find ________ pencil anywhere. I’ll let ________ use ________. —You are so nice! A．his; he; mine B．his; him; my C．him; him; mine D．his; him; mine 【答案】D 【详解】句意:--Eric到处找不到他的铅笔。我要让他用我的。--你太好了! 考查代词辨析。his他的，物主代词;he他，主格;him他，宾格;mine我的，名词性物主代词;my我的，形容词性物主代词。第一空修饰名词pencil，应填形容词性物主代词。第二空位于动词let后，应填宾格。第三空表示“我的铅笔”，空格后无名词，应填名词性物主代词，故选D。 (3) ________ hat is black, and ________ is black, too. A．He; mine B．His; my C．He; my D．His; mine 【详解】句意:他的帽子是黑色的，我的也是黑色的。 考查代词辨析。he他，主格;his他的，物主代词;mine我的，名词性物主代词;my我的，形容词性物主代词。第一处作定语修饰hat，用形容词性物主代词，排除AC;第二处作主语，用名词性物主代词mine代替myhat。故选D。 (4) — What’s ________ favorite subject(学科)? — ________ favorite subject is math. A．you, My B．your; Mine C．her, Her D．her, She 【答案】C 【详解】句意:--她最喜欢的学科是什么?--她最喜欢的学科是数学。 考查代词辨析。you你，主格或宾格代词;My我的，形容性物主代词;your你的，形容词性物主代词;mine我的，名词性物主代词；her她(的)，宾格代词或形容词性物主代词;She她，逐个单词。根据“favorite subject"可知，第一空和第二空应用形容词性物主代词修饰选项C符合语法规则。故选C。 (5) —Mike, is this phone ________? —No, it isn’t. ________ is in my bag. A．your, Mine B．yours; Your C．yours; Mine D．your;Yours 【答案】C 【详解】句意:--迈克，这个手机是你的吗?--不，不是。我的在包里。 考查物主代词辨析。yow你的，形容词性物主代词;yours你的(东西)，名词性物主代词;mine我的(东西)，名词性物主代词。第一空处需要用名词性物主代词yours，表示“你的手机”;第二空处需要用名词性物主代词mine，表示“我的手机”。故选C。 (6) —Excuse me, Jack. Is this ________ dictionary? —No, it isn’t. It’s ________. A．your; his B．my; your C．his; her D．her; your 【答案】A 【详解】句意:--打扰了，杰克。这是你的字典吗?--不，它不是。它是他的。 考查代词辨析。your你的，你们的，形容词性物主代词;his他的，既可作形容词性物主代词，又可作名词性物主代词;my我的，形容词性物主代词;her她的，形容词性物主代词。根据“Is this... dictionary?"可知，名词前需要用形容词性物主代词;由“It’s ...”"可知,空后没有名词，此空用名词性物主代词，故选A。 (7) —Is this eraser ________? I found it in the lost and found box. —No, it isn’t ________. It’s Tom’s. A．hers; yours B．your; mine C．yours; mine D．his; mine 【答案】C 【详解】句意:--这个橡皮擦是你的吗?我在失物招领箱里找到的。 --不，它不是我的。这是汤姆的。考查代词辨析。hers她的，名词性物主代词;your你()的，名词性物主代词;your你()的，形容词性物主代司:mine我的，名词性物主代词;his他的，形容词性或名词性物主代词。结合"Is this eraser..”及语境可知，此处询问对方是不是“你的橡皮擦”，第一空应用第二人称对应的名词性物主代词yours;又结合“it isn't.”及语境可知，此处应表示不是“说话者本人的东西”，第二空应用第一人称单数形式译对应的名词性物主代词mine搭配，意为“不是我的橡皮擦”。故选C。 (8) Our English teacher not only teaches ________ English but also is a friend of ________. A．our; us B．our; ours C．us; us D．us; ours 【答案】D 【详解】句意:我们的英语老师不仅教我们英语，而且是我们的朋友。 考查代词辨析。our我们的，形容词物主代词;us我们，宾格;ours我们的(所有物)，名词性物主代词。第一空用宾格us作动词teaches的宾语;第二空作介词of的宾语，且表示“我们的朋友”，应用名词性物主代词ours。故选D。 用所给词的适当形式填空或用适当的代词填空。 (1) That is not ________ (she) badminton racket. ________ is on the table. (2) —Is that blue jacket Tom’s? —No, it isn’t. ________ (he) is purple. (3) —Peter, is this ______ (you) notebook? —No, it isn’t. ______ (I)is in my schoolbag. (4) —Excuse me. Is this watch________ (your)? —Oh! Yes, it’s ________. Thank you. (5) —Whose eraser is it? It’s blue. —It’s ________(I). (6) —Is this _______(you) book? —No, it’s Jenny’s. Look. _______ (she)name is on it. (7) —Excuse me. Does this teacher teach ________ (they)English? —No, ________ (they)is over there under the tree. (8) —Are these ________ (he) pens? —No, they aren’t.The blue ones are ________(he) . (9) The balls are mine. Hers________(be) in the desk. (10) . —Excuse me. Does this teacher teach ________ (they)English? —No, theirs________(be)over there under the tree. 【答案】 (1) her; Hers (2) His (3) your; Mine (4) yours; mine (5) mine (6) your; Her (7) them; theirs (8) his; his (9) are (10) them; is 2、 单元语法基础练习 单项填空 (1) —Bob, is this your ruler? —No. ________ is in my schoolbag. A．Mine B．Hers C．His D．Its 【答案】A 【详解】句意:--鲍勃，这是你的尺子吗?--不是。我的在我的书包里。 考查名词性物主代词。Mine我的(东西)，名词性物主代词;Hers她的(东西)，名词性物主代词;His他的(东西)，名词性物主代词;Its它的(东西)，形容词性物主代词。根据语境可知，此处是指“我的尺子在我的书包里”，此处用名词性物主代词mine，代替my ruler。故选A。 (2) — There are some crayons on the teacher’s desk. Are these ________? — No, they aren’t. Mine are in my desk. A．mine B．hers C．yours D．his 【答案】C 【详解】句意:--老师的桌子上有一些蜡笔。这些是你的吗?--不，它们不是。我的在我的书桌里。 考查代词辨析。mine我的，名词性物主代词;hers她的，名词性物主代词;yours你的，你们的，名词性物主代词;his他的，名词性物主代词/形容词性物主代词。根据 "Are these...?”和“No,they aren't.Mine are in my desk.”可知，应是询问蜡笔是否属于对方。因此应该使用第二人称的物主代词“yours”。故选C。 (3) —Lily, do people in England celebrate the Mid-Autumn Festival? —No, they don’t. It is ________ festival, not ________. A．ours; their B．ours; theirs C．theirs; our D．our; theirs 【答案】D 【详解】句意:--Lily，英国人庆祝中秋节吗?--不，他们不庆祝。它是我们的节日，不是他们的节日。 考查代词辨析。ours我们的，名词性物主代词;our我们的，形容词性物主代词;their他们的，形容词性物主代词;theirs他们的，名词性物主代词。根据“festival”可知，空一用形容词性物主代词;第二个空后没有名词，所以空二用名词性物主代词。故选D。 (4) —Is this Jenny’s ball? —No, it is_________. The white one on the desk is hers. A．mine B．your C．him D．hers 【答案】A 【详解】句意:--这是Jenny的球吗?--不，它是我的。桌子上那个白色的是她的。 考查名词性物主代词的用法。mine名词性物主代词，我的:your形容词性物主代词，你的，你们的;him他，宾格:hers名词性物主代词，她的。根据句意，本空指代某人的球，应用名词性物主代词，因此排除B和C，根据答语"The white one on the desk is hers.”可知，选项D不符合题意，因此排除。故选A。 (5) —Are these jump ropes Michael’s? —No, his ________ over there. A．is B．am C．are D．be 【答案】C 【详解】句意:--这些跳绳是迈克尔的吗?--不是，他的在那边。 考查be动词的用法，is是，主语是单数;am是，通常与I连用;are是，主语是复数。此处主语his代指“这些跳绳”，是复数形式，所以be动词要用are。故选C。 (6) —Many doctors and nurses worked ________ and ________ had time to stay with their family. —They’re the most beautiful people in the world. A．hard; hardly B．hardly; hard C．hard; hard D．hardly; hardly 【答案】A 【详解】句意:--许多医生和护士工作努力，几乎没有时间和家人呆在一起。--他们是世界上最美的人。 考查副词辨析。hard努力地:hardly几平不，根据"Many doctors and nurses worked…”可知是医生和护士们工作努力，第一空用hard)再由“Many doctors and nurses worked hard”可推出是几乎没时间和家人待在一起，第二空用hardly。故选A。 (7) —________ do you use the Internet? —Only________. A．How often; hardly ever B．How many; a little C．How often; twice a week D．How much; a few 【答案】C 【详解】句意:--你多久上一次网?--仅仅两周一次。 考查特殊疑问句和频率副词。how often多久一次;how much多少，修饰不可数名词;how many多少，修饰可数名词;hardly ever几乎不;twice a week两周一次;a little少量的;a few少量的。根据句意可知，第一个空应该是询问频率，故填how often，排除BD选项;第二空是表示频率的，根据only可知，twice a week符合语境。故选C。 (8) —Why does your father ________ go to work by car? —Because he thinks walking is good for health. A．sometimes B．seldom C．usually D．always 【答案】B 【详解】句意:--为什么你的爸爸几乎不开车去上班?--因为他认为走路对健康有好处。 考查副词辨析。sometimes有时;seldom几乎不;usually通常;always总是。根据 "Because he thinks walking is good for heath,” 可知，此处说的是几乎不乘车去上班，故选B。 (9) Lily likes swimming very much, so she ________ goes swimming with her father. A．never B．sometimes C．only D．often 【答案】D 【详解】句意:莉莉非常喜欢游泳，所以她经常和她的父亲一起去游泳。 考查频度副词词义辨析。never从不;sometimes有时候;only只有;often经常。根据"Lily likes swimming very much”可知，此处表示莉莉经常和她的父亲去游泳，often符合语境。故选D。 (10) Jim is ________ the first one to arrive at school. He is ________ late for class. Teachers like him. A．always; usually B．usually; never C．always; often D．usually; sometimes 【答案】B 【详解】句意:吉姆通常是第一个到学校的。他上课从不迟到。老师喜欢他。 考查副词辨析。always一直;usually通常;never从不;often经常;sometimes有时，根据“Teachers like him.”可知，此处指通常第一个到校，从不迟到。故选B。 (11) My mother ________ me a story at night. A．reads always B．read always C．always reads D．always read 【答案】C 【详解】句意:我妈妈晚上总是给我读故事。 考查一般现在时和频度副词的位置。always是频率副词，一般位于情态动词、助动词、be动词之后或行为动词之前，且本句是一般现在时，主语是第三人称单数my mother，谓语动词用第三人称单数形式，即reads。故选C。 (12) He________ the first student to arrive because he________ up early. A．is always, gets always B．is always, always gets C．ways is, gets always D．always is, always gets 【答案】B 【详解】句意:他总是第一个到的学生，因为他总是早起。 考查频度副词的位置。always总是/一直，频度副词，在系动词之后行为动词之前。getup起床，固定短语;本句是原因状语从句，主句是主系表结构，从句是主谓结构;根据句意结构，故选B。 3、 单元语法提升练习 1. 按要求改写句子。 (1) This exercise mat is mine.（改为一般疑问句） 【答案】Is this exercise mat yours? (2)  These are their schoolbags. (改为同义句) 【答案】These schoolbags are theirs. (3) John’s pen is white. My pen is black. (合并一句) 【答案】John’s pen is white, but mine is black. (4) The blue volleyballs are his. (改为一般疑问句) 【答案】 Are the blue volleyballs his? (5) We seldom play football. （对划线部分提问） 【答案】How often do you play football? (6) How often do you go swimming? (用usually回答) 【答案】I usually go swimming. 2. 根据情境写句子(用祈使句或含情态动词的句子) (1) 你想要询问你的朋友多久打一次篮球，你可以这样问： 【答案】How often do you play basketball？ (2) 你的朋友询问你慢跑的频度，你每周慢跑2次，你可以这样回答他： 【答案】I go jogging twice a week. (3) 翻译句子：我爸爸经常在公园跑步。 【答案】My father often runs in the park. (4) 你想知道桌子上的一只乒乓球球拍是不是对方的，你可以问： 【答案】Is the ping-pong bat yours？ (5) 你想告诉你的朋友这双跑步鞋不是你的，而是属于Emma的，你可以这样陈述： 【答案】The running shoes are not mine. They belong to Emma. 3. 补全对话 根据下面的对话情景，在每个空白处填上一个适当的句子，使对话的意思连贯、完整。 A: Hi, Li Bin. What are you going to do tomorrow morning? B: I’m going to the gym to play tennis with my friend. A: Tennis?     1    ? B: Yes. Of all sports, I like it best. A: Really?     2    ? B: Seven years ago. At that time I was only five years old. A:     3    ? B: My uncle. He is a tennis player. A: How often do you play tennis? B:    4    ? A: I see. Would you like to play tennis at the Olympics one day? B:    5    . Playing tennis at the Olympics is my dream. 【答案】 【小题1】 Is it your favorite sport/Do you like tennis best 【小题2】 When did you begin to play it 【小题3】 Who taught you to play it/Who did you learn to play tennis from 【小题4】 I play it twice a week/About four times a week/I play tennis every day 【小题5】 Yes, I’ d love to/Yes, of course 4. 任务型阅读 We all know doing exercise makes us healthy. But many of us don’t know which is better, to exercise in the day or at night. Dr. Yang, a famous sleep doctor, advises people to do outdoor (户外) exercise for at least 30 minutes a day in the daytime. Dr. Yang has been doing research on sports and sleep for years. He finds out that those who exercise in natural light for half an hour every day have better sleep and more energy (能量). Dr. Yang himself gets up at 6:30 a.m. Then he usually takes a walk outside. Sometimes, he walks his two dogs in the park in the afternoon and enjoy the sunlight. Many schools put Dr. Yang’s findings into practice. They made a rule and it says that students should do outdoor exercise once or twice a day. In some schools, students even formed outdoor running clubs. After some time, most students said they benefited (受益) a lot from outdoor exercise. Now they sleep better and concentrate (集中) more than their studies. Some students are now thinking about inviting their teachers to join them in their daily runs. 1. According to Dr. Yang, the best time to exercise is ______________. (3个词以内) 2. What is Dr. Yang’s research about? _________________________________. (3个词以内) 3. What does Dr. Yang usually do after he gets up? _________________________________. (10个词以内) 4. How often should students do outdoor exercise in many schools? _________________________________. (10个词以内) 5. What do you think school can do to make students do more outdoor exercise? _________________________________ (20个词以内) 【答案】 【小题1】in the daytime 【小题2】Sports and sleep 【小题3】Take a walk outside 【小题4】Once or twice a day 【小题5】 Schools can organize outdoor clubs and invite teachers to join students. 【导语】本文主要介绍了运动与睡眠之间的联系，以及什么时候锻炼、如何锻炼等。 【小题1】 根据 "Dr, Yang, a famous sleep doctor, advises people to do outdoor (户外) exercise for at least 30 minutes a day in the daytime”可知，著名睡眠医生杨医生建议人们白天至少进行30分钟的户外运动，说明在白天运动更好。故填in the daytime。 【小题2】根据 "Dr. Yang has been doing research on sports and seep for years.”可知，杨博士多年来一直在研究运动和睡眠之间的关系。故填Sports and sleep。 【小题3】根据 "Dr. Yang himself gets up at 6:30 a.m.Then he usually takes a walk outside.”可知，杨博士起床后通常在外面散步。故填Take a walk outside. 【小题4】根据 "They made a rule and it says that students should do outdoor exercise once or twice a day.” 可知，学生每天应该做一次或两次户外运动。故填Once or twice a day. 【小题5】根据"in some schools, students even formed outdoor running clubs, After some time, most students said they benefited (受益) a lot from outdoor exercise. ”可知，学校可以为学生组织室外俱乐部，并邀请老师加入学生，故填Schools can organize outdoor clubs and invite teachers to join students. 第 1 页 共 7 页 学科网（北京）股份有限公司 $$ Unit 3 Keep fit 核心知识点精讲精练 2 (Grammar) 【主要内容】 · 【单元核心知识点精讲精练】每个单元按照教材安排分为Section A；Grammar和Section B三个部分。 · Grammar 精讲本单元的重点语法，讲解部分配有随学随练。 · 本资料设置了单元语法基础练习和单元语法提升练习，丰富多样的习题帮助学生更好地学习掌握并英语语法知识。 1、 单元重点语法解析 频度副词 频度副词表示某一动作频率的副词，常见的频度副词有usually, always, often, sometimes,never等。 常用来回答how often的提问。 1. 常用频度副词 always总是（100%）＞usually通常（80%）＞often经常（60%）＞sometimes有时（40%） ＞hardly ever/seldom很少（10%）＞never从不（0%） 2. 频度副词的位置 (1) 频度副词一般放在实义动词前。 She seldom goes to the movies. 他很少看电影。 (2) 频度副词位于be动词、助动词、情态动词等之后。 He is never late for school. 他上学从不迟到。 You should often visit your grandparents. 你应当经常拜访爷爷奶奶。 We will never forget the days. 我们永远不会忘记这些日子。 (3) sometimes位置比较灵活，在句首，句中或句末均可以。often也常位于句末。 Sometimes we go to park. 有的时候我们去公园 Lucy calls me often. 露西经常给我打电话。 3. 对频度副词的提问 对频度副词进行提问常用疑问词组how often ，表示“多久一次”。 —How often do you play football? 你多久踢一次足球？ —Often. 经常 4. 其他表示频度的方式 (1) every+day/month/year等：every day每天；every month每个月；every year每年... (2) 次数+时间段：once a month一个月一次；twice a year一年两次；three times a week一周三次... 注意：三次及三次以上用“基数词+times”表示。 [随学随用] 单项填空。 (1) My mother ________ uses electronic products(电子产品) because she thinks they are bad for her eyes. A. usually B. seldom C. often D. always (2) My father usually ________ to work. A．drive B．drives C．drove D．is driving (3) —Does your brother ________ play basketball after work? —Yes, he plays it every day. A．always B．never C．hardly ever D．sometimes (4) —Sarah was late for the movie last night. —I’m not surprised at all. She is ________ on time. A．often B．always C．sometimes D．never (5) —How often does Gina take the bus to school? —She ______ takes the bus. She enjoys walking there. A．hardly ever B．always C．often D．usually (6) English people _________use “Mrs” before a woman’s first name A．usually B．often C．sometimes D．never (7) Lucy likes staying at home. She ________ goes travelling during holidays. A．often B．seldom C．sometimes D．usually (8) I __________ eat dumplings for lunch. A．sometime B．sometimes C．some time D．some times 物主代词 1. 物主代词是表示所属关系的代词。物主代词分形容词性物主代词和名词性物主代词。物主代词有人称和数的变化。 人称 形容词性物主代词 名词性物主代词 单数 复数 单数 复数 第一人称 my 我的 our 我们的 mine 我的 ours 我们的 第二人称 your 你的 your 你们的 yours 你的 yours 你们的 第三人称 his 他的 her 她的 its 它的 their 他们的 their 他们的 their 他们的 his 他的 hers 她的 its 它的 theirs 他们的 theirs 他们的 theirs 他们的 2. 形容词性物主代词相当于形容词，放在名词前作定语。 Is this your tennis ball? 这是你的网球吗？ These are his pens. 这些是他的钢笔。 3. 名词性物主代词相当于名词，后面不再跟名词。为避免重复，经常使用名词性物主代词来代替“形容词物主代词+名词”。 Look at the red bag. It’s mine. 看那个红色的包。它是我的。 I can’t find my dictionary. May I use yours? 我找不到我的词典。我可以用你的(词典)吗？ [随学随练] 单项填空。 (1) Hi, sir. This is________ learning plan for this month. A．I B．my C．me D．mine (2) —Eric can’t find ________ pencil anywhere. I’ll let ________ use ________. —You are so nice! A．his; he; mine B．his; him; my C．him; him; mine D．his; him; mine (3) ________ hat is black, and ________ is black, too. A．He; mine B．His; my C．He; my D．His; mine (4) — What’s ________ favorite subject(学科)? — ________ favorite subject is math. A．you, My B．your; Mine C．her, Her D．her, She (5) —Mike, is this phone ________? —No, it isn’t. ________ is in my bag. A．your, Mine B．yours; Your C．yours; Mine D．your;Yours (6) —Excuse me, Jack. Is this ________ dictionary? —No, it isn’t. It’s ________. A．your; his B．my; your C．his; her D．her; your (7) —Is this eraser ________? I found it in the lost and found box. —No, it isn’t ________. It’s Tom’s. A．hers; yours B．your; mine C．yours; mine D．his; mine (8) Our English teacher not only teaches ________ English but also is a friend of ________. A．our; us B．our; ours C．us; us D．us; ours 用所给词的适当形式填空或用适当的代词填空。 (1) That is not ________ (she) badminton racket. ________ is on the table. (2) —Is that blue jacket Tom’s? —No, it isn’t. ________ (he) is purple. (3) —Peter, is this ______ (you) notebook? —No, it isn’t. ______ (I)is in my schoolbag. (4) —Excuse me. Is this watch________ (your)? —Oh! Yes, it’s ________. Thank you. (5) —Whose eraser is it? It’s blue. —It’s ________(I). (6) —Is this _______(you) book? —No, it’s Jenny’s. Look. _______ (she)name is on it. (7) —Excuse me. Does this teacher teach ________ (they)English? —No, ________ (they)is over there under the tree. (8) —Are these ________ (he) pens? —No, they aren’t.The blue ones are ________(he) . (9) The balls are mine. Hers________(be) in the desk. (10) . —Excuse me. Does this teacher teach ________ (they)English? —No, theirs________(be)over there under the tree. 2、 单元语法基础练习 单项填空 (1) —Bob, is this your ruler? —No. ________ is in my schoolbag. A．Mine B．Hers C．His D．Its (2) — There are some crayons on the teacher’s desk. Are these ________? — No, they aren’t. Mine are in my desk. A．mine B．hers C．yours D．his (3) —Lily, do people in England celebrate the Mid-Autumn Festival? —No, they don’t. It is ________ festival, not ________. A．ours; their B．ours; theirs C．theirs; our D．our; theirs (4) —Is this Jenny’s ball? —No, it is_________. The white one on the desk is hers. A．mine B．your C．him D．hers (5) —Are these jump ropes Michael’s? —No, his ________ over there. A．is B．am C．are D．be (6) —Many doctors and nurses worked ________ and ________ had time to stay with their family. —They’re the most beautiful people in the world. A．hard; hardly B．hardly; hard C．hard; hard D．hardly; hardly (7) —________ do you use the Internet? —Only________. A．How often; hardly ever B．How many; a little C．How often; twice a week D．How much; a few (8) —Why does your father ________ go to work by car? —Because he thinks walking is good for health. A．sometimes B．seldom C．usually D．always (9) Lily likes swimming very much, so she ________ goes swimming with her father. A．never B．sometimes C．only D．often (10) Jim is ________ the first one to arrive at school. He is ________ late for class. Teachers like him. A．always; usually B．usually; never C．always; often D．usually; sometimes (11) My mother ________ me a story at night. A．reads always B．read always C．always reads D．always read (12) He________ the first student to arrive because he________ up early. A．is always, gets always B．is always, always gets C．ways is, gets always D．always is, always gets 3、 单元语法提升练习 1. 按要求改写句子。 (1) This exercise mat is mine.（改为一般疑问句） (2)  These are their schoolbags. (改为同义句) (3) John’s pen is white. My pen is black. (合并一句) (4) The blue volleyballs are his. (改为一般疑问句) (5) We seldom play football. （对划线部分提问） (6) How often do you go swimming? (用usually回答) 2. 根据情境写句子(用祈使句或含情态动词的句子) (1) 你想要询问你的朋友多久打一次篮球，你可以这样问： (2) 你的朋友询问你慢跑的频度，你每周慢跑2次，你可以这样回答他： (3) 翻译句子：我爸爸经常在公园跑步。 (4) 你想知道桌子上的一只乒乓球球拍是不是对方的，你可以问： (5) 你想告诉你的朋友这双跑步鞋不是你的，而是属于Emma的，你可以这样陈述： 3. 补全对话 根据下面的对话情景，在每个空白处填上一个适当的句子，使对话的意思连贯、完整。 A: Hi, Li Bin. What are you going to do tomorrow morning? B: I’m going to the gym to play tennis with my friend. A: Tennis?     1    ? B: Yes. Of all sports, I like it best. A: Really?     2    ? B: Seven years ago. At that time I was only five years old. A:     3    ? B: My uncle. He is a tennis player. A: How often do you play tennis? B:    4    ? A: I see. Would you like to play tennis at the Olympics one day? B:    5    . Playing tennis at the Olympics is my dream. 4. 任务型阅读 We all know doing exercise makes us healthy. But many of us don’t know which is better, to exercise in the day or at night. Dr. Yang, a famous sleep doctor, advises people to do outdoor (户外) exercise for at least 30 minutes a day in the daytime. Dr. Yang has been doing research on sports and sleep for years. He finds out that those who exercise in natural light for half an hour every day have better sleep and more energy (能量). Dr. Yang himself gets up at 6:30 a.m. Then he usually takes a walk outside. Sometimes, he walks his two dogs in the park in the afternoon and enjoy the sunlight. Many schools put Dr. Yang’s findings into practice. They made a rule and it says that students should do outdoor exercise once or twice a day. In some schools, students even formed outdoor running clubs. After some time, most students said they benefited (受益) a lot from outdoor exercise. Now they sleep better and concentrate (集中) more than their studies. Some students are now thinking about inviting their teachers to join them in their daily runs. (1) According to Dr. Yang, the best time to exercise is ______________. (3个词以内) (2) What is Dr. Yang’s research about? _________________________________. (3个词以内) (3) What does Dr. Yang usually do after he gets up? . (10个词以内) (4) How often should students do outdoor exercise in many schools? . (10个词以内) (5) What do you think school can do to make students do more outdoor exercise?  (20个词以内) 第 1 页 共 7 页 学科网（北京）股份有限公司 $$