期中复习之单元语法综合练（Units 1-4）-2025-2026学年七年级英语上册单元重难点易错题精练（译林版2024）

期中复习之单元语法综合练100题 (Unit 1-Unit 4) Unit 1 be动词的一般现在时 Unit 2 行为动词的一般现在时 Unit 3 人称代词的主格和宾格 Unit 4 时间介词和频度副词 Unit 1 be动词的一般现在时 1．Grace and I ________ good friends. A．is B．am C．are D．be 2．There ________ a set of keys on the chair. A．are B．am C．is D．be 3．I ________ twelve years old, and my sister ________ nine. A．am; is B．am; am C．are; is D．is; are 4．—You and Sam ________ in Class 8, right? —No, we ________. A．is; are B．am; are C．are; aren’t D．is; aren’t 5．Her family ________ watching TV. They are very happy. A．is B．are C．am D．be 6．—Where ________ you from? —Lucy ________ from the USA, and I ________ from China. A．are; is; is B．are; is; am C．are; are; am D．are; am; is 7．— Hi, I’m Peter. ________ you Ella? — Yes, I ________. A．Are, are B．Is, is C．Are; am 8．—Hello! I ________ Mary.       —Hi! My name ________ Jim. A．am; am B．is; am C．am; is 9．Helen and I ________ good friends. She ________ kind and helpful. A．are; is B．are; are C．is; are 10．—What’s that? —_______ a bottle. A．That’s B．This is C．It’s D．They’re 11．Emma and I ________ students. A．is B．are C．am D．be 12．Everyone in my class ________ very happy. A．am B．are C．is 13．Fu Xing and Song Meimei ________ good friends. A．be B．is C．am D．are 14．—________ your parents often play computer games? —No. They play them when they ________ free. A．Do; are B．Does; have C．Is; have D．Are; are 15．—________ your mother at home now? —No. A．Are B．Is C．Am D．Be 16．My books ________ here. Where ________ yours? A．are; is B．are; are C．is; is D．is; are 17．Here ________ three photos of me. And here ________ a photo of my family. A．is; is B．are; is C．is; are D．are; are 18．—________ you Wendy? —No, I ________ not. A．Is; is B．Is; am C．Are; is D．Are; am 19．My family ________ very happy. A．is B．are C．be D．am 20．— Why ________ you so sad?  — I lose (丢失) my cat. A．do B．are C．does D．is 21．—Excuse me, ________ you Tom’s mother? —Yes, I________. A．is; am B．are; are C．is; are D．are; am 22．Emma and I ________ good friends. She ________ a nice girl. A．am; is B．am; are C．are; is D．are, are 23．Kate and I ________ good friends. A．is B．am C．are D．be 24．Emma and I ________ 12 years old. Peter ________ 13 years old. A．is; am B．are; is C．am; are D．am; is 25．—_________ these her classmates? —No, they _________. A．Is; isn’t B．Are; isn’t C．Are; aren’t D．Is; aren’t Unit 2 行为动词的一般现在时 26．Pauline ________ in Singapore with her big family. A．live B．lives C．is live D．living 27．My sister often ________ TV on weekends. A．watch B．watches C．is watching 28．Jonn ________ English at 8:00________ the morning of every Saturday. A．studies; on B．studies; in C．study; in 29．—________ your father ________ his car every week? —Yes, he likes it a lot. A．Do; clean B．Is; cleaning C．Does; clean 30．My grandpa ________ tea with his old friends every weekend. A．drinks B．is drinking C．will drink 31．Every year they ________ a photo together during the Spring Festival. A．took B．will take C．take D．are taking 32．Jacki ________ soccer balls, but Peter doesn’t ________ one. A．has; have B．has; has C．have; has D．have; have 33．I ________ to the library every Saturday. A．go B．went C．will go D．am going 34．We ________ a big dinner at the Mid-Autumn Festival. A．have B．has C．having D．to have 35．Gina and I both like sports. She often ________ sports with me. A．play B．plays C．playing D．to play 36．—What does your mother do? —She _________ English in a high school. A．teaches B．teach C．speak 37．Every day, he ________ to school by bus. A．go B．goes C．went D．is going 38．My hobby is playing table tennis, but Tom ________ like it. He ________ playing badminton. A．isn’t; like B．doesn’t; likes C．don’t; like 39．Zihan is good at maths. He often _________ me at school. A．help B．helps C．will help D．is helping 40．Mr Lee ________ an hour listening to news every day. A．spent B．is spending C．spends D．will spend 41．Ben knows a lot about science. He often ________ small things for his classmates. A．fix B．fixing C．to fix D．fixes 42．My father works in the countryside. He ________ the villagers live a better life. A．helping B．help C．helped D．helps 43．—How do people usually celebrate the Mid-Autumn Festival? —They usually _______ mooncakes and admire the moon. A．eat B．ate C．will eat D．are eating 44．He has a great passion for football, and he ________ every match he can. A．watches B．watch C．watched D．watching 45．Mr Wang ________ as a police officer in a nearby police station. A．is working B．worked C．has worked D．works 46．She finishes school at 4 o’clock and usually ________ around 4:30. A．gets to home B．get home C．gets home D．go to home 47．Look! Lily’s feet ________ much smaller than his. A．looks B．look C．looked 48．These foreigners ________ from Canada. A．is B．are C．comes D．were 49．—Where ________ the actor from? —He ________ from the USA． A．is; comes B．are; come C．does; comes D．does; come 50．It usually________ in the season, so you need to take an umbrella. A．rain B．rainy C．rains D．raining Unit 3 人称代词的主格和宾格 51．My brother is only five, but ________ can draw beautiful pictures. A．she B．he C．they 52．—What’s that ________ English? —________ a jacket. A．in; That’s B．to; It’s C．in; It’s D．to; They’re 53．My sister is good at singing. ________ can even sing some French songs. A．I B．He C．You D．She 54．My brother and I like sports. ________ often play football together after school. A．They B．We C．You D．I 55．—What are these? —________ are apple trees. A．These B．They C．This D．It 56．—My grandpa has five watches. —He is wearing one of ________ on his hand, right? A．it B．them C．he D．his 57．My friend is Fu Xing. ________ is a girl. A．He B．It C．She 58．Hi, I’m Zhao Min. You can call ________ Amy. A．I B．me C．my D．myself 59．The man ________ glasses teaches ________ English well. We like him. A．with; our B．in; we C．wears; our D．with; us 60．Quan Hongchan, a 15-year-old girl, is a sports star. We all like ________. A．he B．him C．she D．her 61．— How is your grandfather? —________ is fine. A．She B．He C．Her D．His 62．Let ________ play games. A．his B．we C．us D．he 63．—Could you please introduce a film to ________, Miss Black? —OK, boys. You can watch The Volunteers to know more about the history of China. A．our B．us C．me D．my 64．—Who is the woman over there? —She is Miss Fang. She is our English teacher. She teaches _________ English. A．ours B．our C．we D．us 65．—Who teaches ______ Music this term? —Ms Li. She is kind to her students. A．our B．we C．ours D．us 66．—Do you see the man in the TV show? —Yes, I do. His name is Tang Shengjie. ________ is one of the Shenzhou-17 astronauts. A．He B．She C．Him D．Her 67．________ students may be very busy sometimes, but it’s important for ________ to eat a good breakfast every day. A．Our; us B．We; us C．Our; we D．We; we 68．The woman with long black hair is ________ teacher, and she teaches ________ Maths. A．us; us B．our; our C．us; our D．our; us 69．My father has got a lot of friends in Shanghai and one of ________ is a policeman. A．their B．themselves C．theirs D．them 70．Mike’s friends call _______ “Flash” because he’s always the first to finish meals. A．him B．himself C．his D．he 71．My mother is a manager. ________ works in a hotel. A．She B．He C．It 72．Please give________some bread.________is hungry. A．his;He B．him;His C．him;He D．he;Him 73．Jack’s teacher asked ________ to bring a family photo to school tomorrow. A．they B．their C．them 74．________ is Teng Fei. ________ bag is blue. A．He; His B．She; Her C．He; He 75．—How much ________ these three pairs of trousers? —________ 90 dollars. A．are; It’s B．is; It’s C．are; They’re D．is; They’re Unit 4 时间介词和频度副词 76．I can eat ice-cream _________ summer. A．in B．at C．on 77．I often watch TV________7:00 p. m. ________ Sundays. A．at; on B．in; on C．at; in 78．He was born ______ June 5, 1920 and died ______ July, 1984. A．in; for B．of; at C．on; in D．at; on 79．I always go to school ________ seven ________ Monday morning. A．at; in B．in; at C．at; on 80．We often go back home ________ Friday and come back to school two days later. A．in B．on C．at 81．—When is the Spring Festival?    —It’s usually ________ January or February. A．in B．on C．at 82．Many people leave work and go home ________ five o’clock ________ the afternoon. A．in; at B．at; on C．at; in D．in; on 83．The story happened ________ the morning of July 1st. A．at B．in C．on D．/ 84．This year’s FIFA World Cup started ________ June 14 and ends ________ July. A．in; in B．on; on C．on; in D．in; on 85．—How often does your dad go to the library? —Once ________. He often goes there to read books about science ________ Friday afternoons. A．each week; in B．a month; on C．a year; in D．a week; on 86．Daniel likes to take things apart ________ his free time ________ Sundays. A．in; at B．in; on C．at; on D．on; at 87．My parents often take me to see a film ________ 7 o’clock ________ Saturday evenings. A．at; in B．at; on C．in; in D．in; on 88．________ Sunday morning I often get up at 8:00. A．On B．In C．At D．Of 89．—It’s reported that the ship sank (沉没) ________ June 1st, 2020. —I’m sorry to hear that. A．on B．in C．at D．for 90．The students are busy with their studies ________ weekdays. A．in B．for C．at D．on 91．Ann has an art class ________ the morning of every Friday. A．in B．on C．at 92．We have two English classes ________ Tuesday. A．in B．on C．at D．for 93．Lucy goes to the Painting Club ________ 7:30 a. m. ________ Saturday morning. A．in; on B．at; on C．on; at D．at; in 94．Xiao Ya can cook very well, so she ________ helps her mother cook the food. A．seldom B．often C．never 95．Sally thinks candies are bad for her health. So she ________ eats them. A．seldom B．often C．always 96．Julie is very quiet and shy. She ________ raises her hand in class. A．always B．seldom C．sometimes 97．Jack is full of energy because he ________ eats fast food and always exercises. A．always B．usually C．seldom D．often 98．Millie wants to keep slim, so she ________ eats sweet food. A．always B．often C．never D．usually 99．—How often do you write to your grandfather? —________. We use the WeChat instead. A．Seldom B．Always C．Usually D．Often 100．—Jack looks strong. —Yes. He is a superman! He ________ goes to the doctor. A．usually B．always C．seldom D．sometimes 试卷第1页，共3页 试卷第1页，共3页 学科网（北京）股份有限公司 $ 期中复习之单元语法综合练100题 (Unit 1-Unit 4) Unit 1 be动词的一般现在时 Unit 2 行为动词的一般现在时 Unit 3 人称代词的主格和宾格 Unit 4 时间介词和频度副词 Unit 1 be动词的一般现在时 1．Grace and I ________ good friends. A．is B．am C．are D．be 【答案】C 【详解】句意：格蕾丝和我是好朋友。 考查be动词的用法。is用于第三人称单数主语；am仅用于第一人称单数主语I；are用于第二人称或复数主语；be是原形，通常用于情态动词后或祈使句等情况。本句主语Grace and I是两个人，属于复数，因此be动词应用are。故选C。 2．There ________ a set of keys on the chair. A．are B．am C．is D．be 【答案】C 【详解】句意：椅子上有一串钥匙。 考查主谓一致。根据该句主语是“a set of keys”，所以此处be动词要用is。故选C。 3．I ________ twelve years old, and my sister ________ nine. A．am; is B．am; am C．are; is D．is; are 【答案】A 【详解】句意：我十二岁，我妹妹九岁。 考查be动词。am是（主语是I）；is是（主语表示单数）；are是（主语是you或表示复数）。根据“I...twelve years old”可知，这句的主语是I，所以第一空应选am；根据“my sister...nine”可知，这句的主语是my sister，表示单数，所以第二空应选is。故选A。 4．—You and Sam ________ in Class 8, right? —No, we ________. A．is; are B．am; are C．are; aren’t D．is; aren’t 【答案】C 【详解】句意：——你和萨姆在8班，对吗？——不，我们不是。 考查主谓一致。You and Sam作主语，be动词用are，第一个空填are；we作主语，此处作否定回答，应该用aren’t。故选C。 5．Her family ________ watching TV. They are very happy. A．is B．are C．am D．be 【答案】B 【详解】句意：她的家人都在看电视。他们很开心。 考查be动词。本句为现在进行时，“Her family”在句中指“她的家人”，是复数，故be动词应用are。故选B。 6．—Where ________ you from? —Lucy ________ from the USA, and I ________ from China. A．are; is; is B．are; is; am C．are; are; am D．are; am; is 【答案】B 【详解】句意：——你们是哪里人？——露西来自美国，我来自中国。 考查be动词。you为第二人称，用are；Lucy为第三人数单数，be动词用is；I为第一位人称单数，用am。故选B。 7．— Hi, I’m Peter. ________ you Ella? — Yes, I ________. A．Are, are B．Is, is C．Are; am 【答案】C 【详解】句意：——你好，我是Peter，你是Ella吗？——是的，我是。 考查be动词。are是，用于第二人称单复数现在时，第一、三人称复数现在时；is是，be的第三人称单数形式，根据“… you Ella?”可知，主语是you，系动词用are，首字母大写，故第一空应填 Are；第二空是I开头，am符合句意，故选C。 8．—Hello! I ________ Mary.       —Hi! My name ________ Jim. A．am; am B．is; am C．am; is 【答案】C 【详解】句意：——你好！我叫玛丽。——你好！我的名字是吉姆。 考查be动词和主谓一致。am是，动词be的第一人称单数现在时形式；is是，动词be的第三人称单数现在时形式。第一空，主语“I”后面的be动词用“am”；第二空，主语“my name”是第三人称单数，be动词用“is”。故选C。 9．Helen and I ________ good friends. She ________ kind and helpful. A．are; is B．are; are C．is; are 【答案】A 【详解】句意：Helen和我是好朋友。她心地善良，乐于助人。 考查主谓一致。are主语为复数或第二人称；is主语为三单。第一空，主语Helen and I是并列主语，be动词用are；第二空，主语She是单数第三人称，be动词用is。故选A。 10．—What’s that? —_______ a bottle. A．That’s B．This is C．It’s D．They’re 【答案】C 【详解】句意：——那是什么？——它是一个瓶子。 考查代词及be动词用法。That’s那是；This is这是；It’s它是；They’re它们是。“What’s that?”的回答需用“It’s...”来表示。故选C。 11．Emma and I ________ students. A．is B．are C．am D．be 【答案】B 【详解】句意：Emma和我是学生。 考查be动词。“Emma and I”作为主语，属于复数形式，而“are”是“be动词”的复数形式。故选B。 12．Everyone in my class ________ very happy. A．am B．are C．is 【答案】C 【详解】句意：我们班的每个人都很高兴。 考查be动词。am用于主语是第一人称单数I的情况；are用于主语是第二人称you、复数名词或复数代词等情况；is用于主语是第三人称单数的情况。Everyone意为“每个人；所有人”，作主语时相当于第三人称单数，谓语动词用单数形式。故选C。 13．Fu Xing and Song Meimei ________ good friends. A．be B．is C．am D．are 【答案】D 【详解】句意：福星和宋美梅是好朋友。 考查be动词。主语是Fu Xing and Song Meimei，be动词用are。故选D。 14．—________ your parents often play computer games? —No. They play them when they ________ free. A．Do; are B．Does; have C．Is; have D．Are; are 【答案】A 【详解】句意：——你父母经常玩电脑游戏吗？——没有。他们有空的时候玩。 考查助动词和be动词。第一空主语为your parents，实义动词play作谓语，时态为一般现在时，因此助动词用do，首字母大写；第二空根据“they...free”可知，空处要填be动词，时态为一般现在时，因此be动词用are。故选A。 15．—________ your mother at home now? —No. A．Are B．Is C．Am D．Be 【答案】B 【详解】句意：——你妈妈现在在家吗？——不。 考查be动词。are用于复数主语或者人称代词you；is用于第三人称单数作主语；am用于人称代词I；be动词原形。主语your mother是第三人称单数，is符合句意，故选B。 16．My books ________ here. Where ________ yours? A．are; is B．are; are C．is; is D．is; are 【答案】B 【详解】句意：我的书在这里。你的在哪里？ 考查be动词。第一空“books”是复数形式，“be”动词是“are”；第二空“yours”指的是“your books”，也是复数形式，因此使用复数形式的“be”动词“are”。故选B。 17．Here ________ three photos of me. And here ________ a photo of my family. A．is; is B．are; is C．is; are D．are; are 【答案】B 【详解】句意：这是我的三张照片。这是我的全家福。   考查主谓一致。根据空后的“three photos of me”可知，第一空应用are；再根据“a photo of my family”是单数可知，第二空应用is。故选B。 18．—________ you Wendy? —No, I ________ not. A．Is; is B．Is; am C．Are; is D．Are; am 【答案】D 【详解】句意：——你是温迪吗？——不，我不是。 考查主谓一致。am，is和are都是be动词的形式，意为“是”，am用于主语为第一人称I的时候；is用于主语是第三人称单数时；are用于主语是复数或是第二人称you的时候。第一个空后主语为you，故用are；第二个空主语是I，应用am。故选D。 19．My family ________ very happy. A．is B．are C．be D．am 【答案】B 【详解】句意：我的家人都很开心。 考查主谓一致。family当“家”讲时，是一个整体概念，表单数，谓语动词用单数；family当“家庭成员”讲时，表复数，谓语动词用复数。根据“My family… very happy.”可知，family在句中表示“家庭成员”，作主语，be动词应用are。故选B。 20．— Why ________ you so sad?  — I lose (丢失) my cat. A．do B．are C．does D．is 【答案】B 【详解】句意：——你为什么这么伤心？——我把我的猫弄丢了。 考查系动词。do做；are是；does做，三单形式；is是。此处sad是形容词，在英语中，形容词一般和系动词连用构成系表结构。you是第二人称，和系动词are搭配，故选B。 21．—Excuse me, ________ you Tom’s mother? —Yes, I________. A．is; am B．are; are C．is; are D．are; am 【答案】D 【详解】句意：——对不起，你是汤姆的妈妈吗？——是的，我是。 考查主谓一致。句子时态是一般现在时，第一个空主语是you，be动词用are；第二个空主语是I，be动词用am。故选D。 22．Emma and I ________ good friends. She ________ a nice girl. A．am; is B．am; are C．are; is D．are, are 【答案】C 【详解】句意：Emma和我是好朋友。她是一个好女孩。 考查be动词。第一空的主语是复数概念，be动词用are；第二空主语是第三人称单数，be动词用is。故选C。 23．Kate and I ________ good friends. A．is B．am C．are D．be 【答案】C 【详解】句意：Kate和我是好朋友。 考查be动词用法。is是，用于单数；am是，用于第一人称I；are是，用于复数；be是。根据“Kate and I”可知，主语为名词复数，be动词用are。故选C。 24．Emma and I ________ 12 years old. Peter ________ 13 years old. A．is; am B．are; is C．am; are D．am; is 【答案】B 【详解】句意：Emma和我是12岁。Peter是13岁。 考查be动词。句子为一般现在时，“Emma and I”是两个人，be动词应使用are；Peter是一个人，be动词用is。故选B。 25．—_________ these her classmates? —No, they _________. A．Is; isn’t B．Are; isn’t C．Are; aren’t D．Is; aren’t 【答案】C 【详解】句意：——这些是她的同学吗？——不，他们不是。 考查一般疑问句。主语“these”表示复数，应用系动词are；根据答语“No”可知，此处作否定回答，are和not的缩写为aren’t，故选C。 Unit 2 行为动词的一般现在时 26．Pauline ________ in Singapore with her big family. A．live B．lives C．is live D．living 【答案】B 【详解】句意：Pauline和她的大家庭住在新加坡。 考查主谓一致。根据“Pauline ... in Singapore with her big family.”可知，句子是描述现在的状态，用一般现在时，主语是Pauline，谓语动词用第三人称单数lives。故选B。 27．My sister often ________ TV on weekends. A．watch B．watches C．is watching 【答案】B 【详解】句意：我妹妹经常在周末看电视。 考查主谓一致。watch看，一般现在时的动词原形；watches看，一般现在时的三单形式；is watching正在看，现在进行时。根据“often”可知，此句是一般现在时，主语“My sister”是第三人称单数，谓语动词要用三单形式，即watches。故选B。 28．Jonn ________ English at 8:00________ the morning of every Saturday. A．studies; on B．studies; in C．study; in 【答案】A 【详解】句意：约翰每个星期六上午 8 点学习英语。 考查时态和介词。studies学习，第三人称单数形式；on用于具体某一天的上午、下午或晚上；in一般用于泛指的上午、下午或晚上。根据主语“Jonn”是第三人称单数，一般现在时中，第三人称单数作主语，谓语动词要用第三人称单数形式，所以study应变为studies；the morning of every Saturday表示“每个星期六的上午”，这里强调的是具体某一天的上午，在具体某一天的上午、下午或晚上要用介词on。故选A。 29．—________ your father ________ his car every week? —Yes, he likes it a lot. A．Do; clean B．Is; cleaning C．Does; clean 【答案】C 【详解】句意：——你爸爸每周清洗他的车吗？——是的，他很喜欢它。 考查时态。根据“every week”可知，时态是一般现在时，排除B；主语是“your father”，助动词用does。故选C。 30．My grandpa ________ tea with his old friends every weekend. A．drinks B．is drinking C．will drink 【答案】A 【详解】句意：我爷爷每个周末都和他的老朋友喝茶。 考查时态。根据“every weekend”可知，时态为一般现在时，主语My grandpa为单数，谓语动词drink用三单形式drinks。故选A。 31．Every year they ________ a photo together during the Spring Festival. A．took B．will take C．take D．are taking 【答案】C 【详解】句意：每年春节期间，他们都会一起合影。 考查动词的时态。根据时间状语“Every year”可知，此处是一般现在时，主语they是复数，谓语动词用原形take。故选C。 32．Jacki ________ soccer balls, but Peter doesn’t ________ one. A．has; have B．has; has C．have; has D．have; have 【答案】A 【详解】句意：Jacki有足球，但Peter没有。 考查动词的用法。本句时态是一般现在时，第一处作谓语，主语是“Jacki”，动词用三单；第二处用在助动词doesn’t后，用动词原形。故选A。 33．I ________ to the library every Saturday. A．go B．went C．will go D．am going 【答案】A 【详解】句意：我每星期六去图书馆。 考查动词时态。根据“every Saturday”可知，描述的是一个经常性发生的习惯动作，应使用一般现在时，主语是I，动词用原形go。故选A。 34．We ________ a big dinner at the Mid-Autumn Festival. A．have B．has C．having D．to have 【答案】A 【详解】句意：我们在中秋节吃一顿丰盛的晚餐。 考查一般现在时。根据“We…a big dinner at the Mid-Autumn Festival.”可知，句子描述的是一种经常发生的习惯性动作，在一般现在时中，主语“We”是第一人称复数，谓语动词要用原形形式。故选A。 35．Gina and I both like sports. She often ________ sports with me. A．play B．plays C．playing D．to play 【答案】B 【详解】句意：吉娜和我都喜欢运动。她经常和我一起做运动。 考查动词时态和主谓一致。根据句中“often”可知，句子时态为一般现在时，主语“She”为第三人称单数，所以谓语动词应用第三人称单数形式。故选B。 36．—What does your mother do? —She _________ English in a high school. A．teaches B．teach C．speak 【答案】A 【详解】句意：——你妈妈是做什么的？——她在高中教英语。 考查动词。teach教；speak说。根据“English in a high school.”可知职业是在高中教英语。主语是she第三人称单数，时态为一般现在时，动词用三单形式。故选A。 37．Every day, he ________ to school by bus. A．go B．goes C．went D．is going 【答案】B 【详解】句意：他每天坐公共汽车上学。 考查时态。根据“Every day”可知句子用一般现在时，主语是he，谓语动词用单三。故选B。 38．My hobby is playing table tennis, but Tom ________ like it. He ________ playing badminton. A．isn’t; like B．doesn’t; likes C．don’t; like 【答案】B 【详解】句意：我的爱好是打乒乓球，但是汤姆不喜欢它。他爱打羽毛球。 考查否定句和动词形式辨析。isn’t不是；doesn’t不；like喜欢。实义动词“like”是原形，且主语 Tom是单数，第一个设空处应用 doesn’t；第二句话的主语为 he，谓语动词应用第三人称单数形式。故选B。 39．Zihan is good at maths. He often _________ me at school. A．help B．helps C．will help D．is helping 【答案】B 【详解】句意：子涵擅长数学。他经常在学校帮助我。 考查时态。根据“often”可知，句子用一般现在时，主语是he，动词用三单形式，故选B。 40．Mr Lee ________ an hour listening to news every day. A．spent B．is spending C．spends D．will spend 【答案】C 【详解】句意：李先生每天花一个小时听新闻。 考查一般现在时。根据“every day”可知，句子应用一般现在时，表示经常性的、习惯性的动作或状态。Mr Lee作主语，谓语动词应用三单形式。故选C。 41．Ben knows a lot about science. He often ________ small things for his classmates. A．fix B．fixing C．to fix D．fixes 【答案】D 【详解】句意：本对科学了解很多。他经常为同学们修理小东西。 考查时态。根据“often”可知句子用一般现在时，主语是He，谓语动词用第三人称单数形式。故选D。 42．My father works in the countryside. He ________ the villagers live a better life. A．helping B．help C．helped D．helps 【答案】D 【详解】句意：我父亲在农村工作。他帮助村民们过上更好的生活。 考查一般现在时。根据“My father works in the countryside.”可知，时态用一般现在时，主语是第三人称单数，谓语动词用单三形式。故选D。 43．—How do people usually celebrate the Mid-Autumn Festival? —They usually _______ mooncakes and admire the moon. A．eat B．ate C．will eat D．are eating 【答案】A 【详解】句意：——人们通常如何庆祝中秋节？——他们通常吃月饼和赏月。 考查动词时态。根据“How do people usually celebrate the Mid-Autumn Festival?”可知，此处问的是中秋节一般如何庆祝，由中秋节的习俗可知，人们通常吃月饼和赏月，因此句子使用一般现在时，主语为They，谓语动词eat用动词原形。故选A。 44．He has a great passion for football, and he ________ every match he can. A．watches B．watch C．watched D．watching 【答案】A 【详解】句意：他对足球有极大的热情，他看他能看的每一场比赛。 考查时态。根据“has”可知，时态为一般现在时；主语为he，谓语动词用三单。故选A。 45．Mr Wang ________ as a police officer in a nearby police station. A．is working B．worked C．has worked D．works 【答案】D 【详解】句意：王先生在附近的一个警察局当一名警察。 考查时态。根据“Mr Wang…as a police officer in a nearby police station.”的语境可知，此处表示事实，时态为一般现在时，主语为“Mr Wang”，用三单形式。故选D。 46．She finishes school at 4 o’clock and usually ________ around 4:30. A．gets to home B．get home C．gets home D．go to home 【答案】C 【详解】句意：她4点放学，通常4点30分左右到家。 考查时态和固定短语。get to到达，后接home/here/there时，to省略；根据“She finishes school at 4 o’clock and usually...”可知，句子的时态为一般现在时，主语为she，动词用第三人称单数形式。故选C。 47．Look! Lily’s feet ________ much smaller than his. A．looks B．look C．looked 【答案】B 【详解】句意：看！莉莉的脚比他的脚小得多。 考查动词时态和主谓一致。根据“Look!”可知，句子使用一般现在时，主语是复数名词feet，动词用原形。故选B。 48．These foreigners ________ from Canada. A．is B．are C．comes D．were 【答案】B 【详解】句意：这些外国人来自加拿大。 考查动词时态和主谓一致。is是，be动词的单三形式；are是，be动词的复数形式；comes来，单三形式；were是，be动词的复数过去式。根据题干可知本句是一般现在时，be from意为“来自”，主语是复数，be动词用are。故选B。 49．—Where ________ the actor from? —He ________ from the USA． A．is; comes B．are; come C．does; comes D．does; come 【答案】A 【详解】句意：——这位演员来自哪里？——他来自美国。 考查主谓一致及动词短语。be/come from“来自”，第一个空主语是the actor，第三人称单数，be动词用is，第二个空主语是he，第三人称单数，谓语动词也用三单形式comes。故选A。 50．It usually________ in the season, so you need to take an umbrella. A．rain B．rainy C．rains D．raining 【答案】C 【详解】句意：这个季节经常下雨，所以你需要带把伞。 考查谓语动词。分析题干可知，空处需要填谓语动词，B选项是形容词，排除；D选项是非谓语动词，排除；主语是单数It，动词用三单形式，故选C。 Unit 3 人称代词的主格和宾格 51．My brother is only five, but ________ can draw beautiful pictures. A．she B．he C．they 【答案】B 【详解】句意：我弟弟只有五岁，但是他会画漂亮的画。 考查代词辨析。she她；he他；they他们。根据“My brother is only five”可知，此处指弟弟，是男性，用he代替。故选B。 52．—What’s that ________ English? —________ a jacket. A．in; That’s B．to; It’s C．in; It’s D．to; They’re 【答案】C 【详解】句意：——那个用英语怎么说？——这是一件夹克衫。 考查介词与代词。in用……语言；to到；that那；it它；they它们。in English“用英语”，固定搭配；疑问句中用that提问，答句中应用it来指代。故选C。 53．My sister is good at singing. ________ can even sing some French songs. A．I B．He C．You D．She 【答案】D 【详解】句意：我妹妹擅长唱歌。她甚至能唱一些法语歌曲。 考查代词辨析。I我；He他；You你；She她。根据“My sister is good at singing.”可知，此处指“我”妹妹会唱法语歌曲，指第三人称，且为女性，故用代词She指代。故选D。 54．My brother and I like sports. ________ often play football together after school. A．They B．We C．You D．I 【答案】B 【详解】句意：我和我兄弟喜欢运动。我们经常放学后一起踢足球。 考查代词辨析。They他们；We我们；You你，你们；I我。根据“My brother and I”可知，此处需用“we”指代“我和我兄弟”。故选B。 55．—What are these? —________ are apple trees. A．These B．They C．This D．It 【答案】B 【详解】句意：——这些是什么？——它们是苹果树。 考查指示代词与人称代词的用法。These这些；They它们；This这个；It它。疑问句中主语为指示代词these“这些”，答句主语应为人称代词they“它们”，故选B。 56．—My grandpa has five watches. —He is wearing one of ________ on his hand, right? A．it B．them C．he D．his 【答案】B 【详解】句意：——我爷爷有五块手表。——他手上正戴着其中一块，对吧？ 考查人称代词。it它，人称代词主格或宾格；them他（她，它）们，人称代词宾格；he他，人称代词主格；his他的，形容词性物主代词。根据“My grandpa has five watches.”可知，指的是五块手表中的其中一块，用“them”代替五块手表。故选B。 57．My friend is Fu Xing. ________ is a girl. A．He B．It C．She 【答案】C 【详解】句意：我的朋友是傅星。她是一个女孩。 考查代词辨析。He他；It它；She她。根据“a girl”可知，此处应用She。故选C。 58．Hi, I’m Zhao Min. You can call ________ Amy. A．I B．me C．my D．myself 【答案】B 【详解】句意：你好，我是赵敏。你可以叫我艾米。 考查代词形式。I我，代词主格；me我，代词宾格；my我的，形容词性物主代词；myself我自己，反身代词。结合后句“You can call…Amy”及语境可知，该句考查“call sb. …叫某人为……”，动词后应用其代词宾格形式。故选B。 59．The man ________ glasses teaches ________ English well. We like him. A．with; our B．in; we C．wears; our D．with; us 【答案】D 【详解】句意：那个戴眼镜的人把我们英语教得很好。我们喜欢他。 考查介词和代词。with带有，是介词；wears戴着，动词；in在……里；our我们的，是形容词性物主代词；us我们，宾格形式；we我们，主格形式。根据第一空后“glasses teaches”可知，此处指那个戴眼镜的人，所以第一空应该填入介词with，介词短语，作后置定语；又根据分析句子“The man…glasses teaches…English well.”可知，第二空作为动词teaches的宾语，用宾格人称代词us，意为“我们”符合语境。故选D。 60．Quan Hongchan, a 15-year-old girl, is a sports star. We all like ________. A．he B．him C．she D．her 【答案】D 【详解】句意：全红婵，一个15岁的女孩，是一个运动明星。我们都喜欢她。 考查人称代词。he他；him他；she她；her她。根据“Quan Hongchan, a 15-year-old girl, is a sports star. We all like…”可知，此处指代的是女孩，且动词之后应用宾格。故选D。 61．— How is your grandfather? —________ is fine. A．She B．He C．Her D．His 【答案】B 【详解】句意：——你祖父好吗？——他很好。 考查代词用法。She她，主格；He他，主格；Her她，她的，宾语或形容词性物主代词；His他的，形容词性物主代词或名词性物主代词。根据“How is your grandfather?”可知，需代词代指“祖父”，故需代词He，在句中作主语。故选B。 62．Let ________ play games. A．his B．we C．us D．he 【答案】C 【详解】句意：让我们玩游戏。 考查代词用法。his他的，形容词性物主代词或名词性物主代词；we我们，主格；us我们，宾格；he他，主格。Let sb. do sth.表示“让某人做某事”，其中sb.需宾格，故选C。 63．—Could you please introduce a film to ________, Miss Black? —OK, boys. You can watch The Volunteers to know more about the history of China. A．our B．us C．me D．my 【答案】B 【详解】句意：——布莱克小姐，你能给我们介绍一部电影吗？——好了，男孩们。你们可以观看《志愿军》来了解更多关于中国的历史。 考查代词辨析。our我们的；us我们；me我；my我的。根据“boys”可知此处作介词to的宾语，应该用代词宾格us。故选B。 64．—Who is the woman over there? —She is Miss Fang. She is our English teacher. She teaches _________ English. A．ours B．our C．we D．us 【答案】D 【详解】句意：——在那的女士是谁？——她是冯老师，她是我们的英语老师，她教我们英语。 考查代词辨析。ours名词性物主代词，我们的；our形容词性物主代词，我们的；we人称代词主格，我们；us人称代词宾格，我们。考查teach sb sth“教某人某事”，所以此处用人称代词宾格作宾语。故选D。 65．—Who teaches ______ Music this term? —Ms Li. She is kind to her students. A．our B．we C．ours D．us 【答案】D 【详解】句意：——这学期谁教我们音乐？——李老师。她对她的学生很友好。 考查代词辨析。our我们的，形容词性物主代词；we我们，人称代词的主格；ours我们的，名词性物主代词；us我们，人称代词的宾格。空前的teaches是谓语动词，其后接人称代词的宾格作宾语。故选D。 66．—Do you see the man in the TV show? —Yes, I do. His name is Tang Shengjie. ________ is one of the Shenzhou-17 astronauts. A．He B．She C．Him D．Her 【答案】A 【详解】句意：——你看到电视节目里的那个男人了吗？——看到了。他的名字叫唐胜杰。他是神舟17号宇航员之一。 考查人称代词。He他，人称代词主格；She她，人称代词主格；Him他，人称代词宾格；Her她，人称代词宾格。此处所缺的代词在句中作主语，先排除选项C和选项D；再根据the man和His name可知，所缺的词是He。故选A。 67．________ students may be very busy sometimes, but it’s important for ________ to eat a good breakfast every day. A．Our; us B．We; us C．Our; we D．We; we 【答案】B 【详解】句意：我们学生有时可能很忙，但是每天吃好早餐对我们很重要。 考查代词。Our我们的，形容词性物主代词；We我们，主格；us我们，宾格。第一空作主语，用人称代词主格we；第二空作介词for的宾语，应用宾格us。故选B。 68．The woman with long black hair is ________ teacher, and she teaches ________ Maths. A．us; us B．our; our C．us; our D．our; us 【答案】D 【详解】句意：这个长着黑色长发的女人是我们的老师，她教我们数学。 考查人称代词和物主代词。第一空，根据“teacher”可知，此处指是我们的老师，需要使用物主代词；第二空，根据“she teaches”可知，她教我们，动词后用宾格。故选D。 69．My father has got a lot of friends in Shanghai and one of ________ is a policeman. A．their B．themselves C．theirs D．them 【答案】D 【详解】句意：我父亲在上海有很多朋友，其中一个是警察。 考查代词辨析。their他们的，形容词性物主代词；themselves他们自己，反身代词；theirs他们的，名词性物主代词；them他们，宾格。根据“one of”可知，此处指他们中的一个，of是介词，后接宾格代词。故选D。 70．Mike’s friends call _______ “Flash” because he’s always the first to finish meals. A．him B．himself C．his D．he 【答案】A 【详解】句意：迈克的朋友们都叫他“闪电”，因为他总是第一个吃完饭。 考查代词辨析。him他，宾格代词；himself他自己，反身代词；his他的（东西），形容词性物主代词或名词性物主代词；he他，主格代词。根据“Mike’s friends call ...”可知，主语为Mike’s friends，空格处代词指代Mike，作call的宾语，需用宾格代词him。故选A。 71．My mother is a manager. ________ works in a hotel. A．She B．He C．It 【答案】A 【详解】句意：我妈妈是一名经理。她在一家旅馆工作。 考查代词辨析。She她；He他；It它。根据“My mother is a manager.”可知，此处指“My mother”，用she代替，故选A。 72．Please give________some bread.________is hungry. A．his;He B．him;His C．him;He D．he;Him 【答案】C 【详解】句意：请给他一些面包。他饿了。 考查代词。his他的，形容词性物主代词；he他，主格；him他，宾格；根据句子结构可知，第一空是give的宾语，应用人称代词的宾格him；第二空在句中作主语，应用人称代词的主格he。故选C。 73．Jack’s teacher asked ________ to bring a family photo to school tomorrow. A．they B．their C．them 【答案】C 【详解】句意：杰克的老师要求他们明天带一张全家福到学校。 考查代词。they他们，主格代词；their他们的，形容词性物主代词；them他们，宾格代词。此处作动词asked的宾语，用宾格代词。故选C。 74．________ is Teng Fei. ________ bag is blue. A．He; His B．She; Her C．He; He 【答案】A 【详解】句意：他是腾飞。他的包是蓝色的。 考查代词。He他，人称代词的主格；His他的，名词性物主代词或形容词性物主代词；She她，人称代词的主格；Her她，她的，人称代词的宾格或形容词性物主代词。根据“…is Teng Fei.”可知，此处指他是腾飞，应用人称代词的主格作主语，第一个空应用He；根据“…bag is blue.”可知，此处指他的包是蓝色的，应用形容词性物主代词作定语来修饰名词bag，第二个空应用His。故选A。 75．—How much ________ these three pairs of trousers? —________ 90 dollars. A．are; It’s B．is; It’s C．are; They’re D．is; They’re 【答案】C 【详解】句意：——这三条裤子多少钱？——它们90美元。 考查主谓一致与代词。“three pairs of trousers”作主语，谓语用are；回答时用they代替“trousers”，故选C。 Unit 4 时间介词和频度副词 76．I can eat ice-cream _________ summer. A．in B．at C．on 【答案】A 【详解】句意：我在夏天可以吃冰淇淋。 考查介词辨析。in其后加早中晚/月份/季节/年份等；at其后加具体时刻等；on其后加星期或具体的时间等。根据“summer”可知，此处指在夏天，用时间介词in。故选A。 77．I often watch TV________7:00 p. m. ________ Sundays. A．at; on B．in; on C．at; in 【答案】A 【详解】句意：我经常在周日晚上七点看电视。 考查介词辨析。at在，表示具体的时刻；on在，表示星期几或某一特定日期；in在，用于年、月、季节等。根据“I often watch TV…7:00 p. m. … Sundays.”可知，第一个空格后的词是7:00 p. m.，表示具体的时间点，应用介词at；第二个空格后的词Sundays，表示具体的某一天，应用介词on。故选A。 78．He was born ______ June 5, 1920 and died ______ July, 1984. A．in; for B．of; at C．on; in D．at; on 【答案】C 【详解】句意：他生于1920年6月5日，于1984年7月去世。 考查介词辨析。in接年/月/季节；for接一段时间；of……的；on在具体某一天；at在某时刻。根据“June 5, 1920”可知，第一空是在具体的某天，用介词on，‌be born on‌用于表示出生的具体日期或特定的日期；根据“July, 1984.”可知，第二空指的是在某月，用介词in。故选C。 79．I always go to school ________ seven ________ Monday morning. A．at; in B．in; at C．at; on 【答案】C 【详解】句意：我总是星期一早上七点去上学。 考查介词词义辨析。at在(某时间或时刻)；in在，用于月份、季节、年份等较长的时间段；on在（某一天），用于具体的日期或星期、中午、早上、晚上等。根据第一个空空后的“seven”表示时间点可知，此处用at；根据第二个空空后的“Monday morning”表示具体一天的上午可知，此处用on。故选C。 80．We often go back home ________ Friday and come back to school two days later. A．in B．on C．at 【答案】B 【详解】句意：我们经常在星期五回家，两天后回学校。 考查介词辨析。in用在年份、月份或者季节前；on后接具体的某一天；at用在具体时刻前。根据“Friday”可知，这里是周五，星期几前应用时间介词on。故选B。 81．—When is the Spring Festival?    —It’s usually ________ January or February. A．in B．on C．at 【答案】A 【详解】句意：——春节是什么时候？——通常在一月份或二月份。 考查时间介词。in用在年、月、季节前；on用在具体一天前；at用于具体时刻。根据“January or February”可知，月份前用in。故选A。 82．Many people leave work and go home ________ five o’clock ________ the afternoon. A．in; at B．at; on C．at; in D．in; on 【答案】C 【详解】句意：许多人下午五点下班回家。 考查介词辨析。in后跟时间时表示在上午/下午/晚上等；at表示在具体的时间点；on表示具体某天或具体某一天的上午下午晚上或一般节日等。第一空“five o’clock”表示具体的时间点，用介词at；第二空“the afternoon”表示下午，用介词in。故选C。 83．The story happened ________ the morning of July 1st. A．at B．in C．on D．/ 【答案】C 【详解】句意：这个故事发生在7月1日早上。 考查介词辨析。at后接具体的时刻；in后接世纪、年、月、季节等；on后接具体某一天的早上、下午或晚上等。空后的the morning of July 1st表示具体某一天的早上，所以空处应用介词on。故选C。 84．This year’s FIFA World Cup started ________ June 14 and ends ________ July. A．in; in B．on; on C．on; in D．in; on 【答案】C 【详解】句意：今年的国际足联世界杯在6月14日开始，在7月结束。 考查时间介词。in用于月、季、年等较长的时间段前；on用于具体的某一天前。“June 14”是具体的一天，前面应用“on”，“July”是月份，前面应用“in”。故选C。 85．—How often does your dad go to the library? —Once ________. He often goes there to read books about science ________ Friday afternoons. A．each week; in B．a month; on C．a year; in D．a week; on 【答案】D 【详解】句意：——你爸爸多久去一次图书馆？——每周一次。他经常在星期五下午去那里读关于科学的书。 考查情景交际和时间介词辨析。each week每周；a month一个月；a year一年；a week一周；in在……，时间介词，后常跟年、月和季节；on在……，时间介词，后常跟具体的某一天和某一天的早中晚。根据“How often does your dad go to the library?”和“He often goes there to read books about science …Friday afternoons.”可知，第一空应该填入a week，once a week，固定搭配，意为“一周一次”符合语境；根据第二空后“Friday afternoons”可知，此处指在星期五下午，所以此处应该填入时间介词on。故选D。 86．Daniel likes to take things apart ________ his free time ________ Sundays. A．in; at B．in; on C．at; on D．on; at 【答案】B 【详解】句意：丹尼尔喜欢在周日的空闲时间把东西拆开。 考查介词。in用于年、月、季节等前面；on用于具体的一天；at用于具体时刻。in one’s free time“在某人空闲时间”；on Sundays“在周日”，故选B。 87．My parents often take me to see a film ________ 7 o’clock ________ Saturday evenings. A．at; in B．at; on C．in; in D．in; on 【答案】B 【详解】句意：我父母经常在星期六晚上七点带我去看电影。 考查介词辨析。at常用于具体的时间点前；in常用于年、月份或季节前；on常用于星期或具体的某一天前。第一个空后为“7 o’clock”，表示具体的时间点，应用at；第二个空后为“Saturday evenings”，表示“星期六晚上”，是具体的某一天晚上，应用on。故选B。 88．________ Sunday morning I often get up at 8:00. A．On B．In C．At D．Of 【答案】A 【详解】句意：星期天早上我经常8：00起床。 考查介词辨析。On+星期、日期或具体某一天的上午下午和晚上；In+年份、月份和季节；At+具体的时间点；Of属于……的。根据“Sunday morning”可知，此处表示“在具体某一天的上午”，用介词on。故选A。 89．—It’s reported that the ship sank (沉没) ________ June 1st, 2020. —I’m sorry to hear that. A．on B．in C．at D．for 【答案】A 【详解】句意：——据报道，该船于2020年6月1日沉没。 ——我很遗憾听到这个消息。 考查介词辨析。on后接具体的某一天或某一天的上午、下午、晚上；in后接年、季节、月等词；at后接具体时刻；for后接段时间。空后June 1st“六月一日”，是具体的某一天，应用介词 on。故选A。 90．The students are busy with their studies ________ weekdays. A．in B．for C．at D．on 【答案】D 【详解】句意：学生们在工作日忙于学习。 考查介词的用法。in泛指一天中的早上、下午和晚上，还用于表示月份，年份和季节；for为了，给；at用于表示具体的时间点；on用于表示具体的日期，还用于星期前。on weekdays表示“在工作日”，是固定短语。故选D。 91．Ann has an art class ________ the morning of every Friday. A．in B．on C．at 【答案】B 【详解】句意：安每周五上午有一节美术课。 考查介词辨析。in接年/月/季节；on接具体某一天；at接某时刻。根据“the morning of every Friday.”可知，此处表示在具体的某一天的上午，介词用“on”，故选B。 92．We have two English classes ________ Tuesday. A．in B．on C．at D．for 【答案】B 【详解】句意：星期二我们有两节英语课。 考查介词辨析。in在……里面；on在，在……上；at在；for为了。表示在具体的某一天，应用介词on。故选B。 93．Lucy goes to the Painting Club ________ 7:30 a. m. ________ Saturday morning. A．in; on B．at; on C．on; at D．at; in 【答案】B 【详解】句意：露西星期六早上七点半去绘画俱乐部。 考查介词辨析。in在……里，用于世纪、年、月、季节等时间前；at在，用于具体的时间点前；on用于具体的某一天或某天的上午下午晚上等。第一空后7:30为具体的时间点，所以选填at；第二空后“Saturday morning”为某天的上午，所以选填on。故选B。 94．Xiao Ya can cook very well, so she ________ helps her mother cook the food. A．seldom B．often C．never 【答案】B 【详解】句意：小雅会做饭，所以她经常帮妈妈做饭。 考查副词辨析。seldom很少；often经常；never从不。根据“Xiao Ya can cook very well”可知她会做饭，所以是经常帮妈妈做饭。故选B。 95．Sally thinks candies are bad for her health. So she ________ eats them. A．seldom B．often C．always 【答案】A 【详解】句意：萨莉认为糖果对她的健康有害。所以她很少吃它们。 考查副词辨析。seldom很少；often经常；always总是。根据“Sally thinks candies are bad for her health”可知糖果对她的健康有害，所以她很少吃。故选A。 96．Julie is very quiet and shy. She ________ raises her hand in class. A．always B．seldom C．sometimes 【答案】B 【详解】句意：朱莉很安静，也很害羞。她上课很少举手。 考查副词辨析。always总是；seldom很少；sometimes有时。根据“Julie is very quiet and shy”可以推测出她在课堂上很少举手，故选B。 97．Jack is full of energy because he ________ eats fast food and always exercises. A．always B．usually C．seldom D．often 【答案】C 【详解】句意：杰克精力充沛，因为他很少吃快餐，而且总是锻炼。 考查副词辨析。always总是；usually通常；seldom很少；often经常。根据“Jack is full of energy”可知，他很少吃快餐。故选C。 98．Millie wants to keep slim, so she ________ eats sweet food. A．always B．often C．never D．usually 【答案】C 【详解】句意：米莉想保持苗条，所以她从不吃甜食。 考查副词辨析。always总是；often经常；never从不；usually通常。根据“Millie wants to keep slim”并结合选项可知，想保持苗条，应该是从不吃甜食。故选C。 99．—How often do you write to your grandfather? —________. We use the WeChat instead. A．Seldom B．Always C．Usually D．Often 【答案】A 【详解】句意：——你多久给你爷爷写一封信？——很少。我们用微信代替。 考查副词辨析。Seldom很少；Always总是；Usually通常；Often经常。根据“We use the WeChat instead.”可知，我们用微信代替写信，因此是很少给爷爷写信。故选A。 100．—Jack looks strong. —Yes. He is a superman! He ________ goes to the doctor. A．usually B．always C．seldom D．sometimes 【答案】C 【详解】句意：——Jack看起来很强壮。——是的。他是个超人！他很少去看医生。 考查副词辨析。usually通常；always总是；seldom很少；sometimes有时。根据“Jack looks strong.”可知他身体状况良好，因此很少去看医生。故选C。 试卷第1页，共3页 试卷第1页，共3页 学科网（北京）股份有限公司 $