Unit 8 单元语法专练：用所给单词的适当形式填空-2024-2025学年七年级英语上册单元语法分题型全面突破（译林版2024）

Unit 8 Let’s celebrate! 语法专项 （主题：节假日与庆祝活动） 现在进行时 用所给单词的适当形式填空 现在进行时 1．Listen! My sister is (sing) in the next room. 2．The boy (lie) on the bed now. 3．In the living room, some people (watch) TV, and the others are listening to the radio. 4．We are (run) happily and (laugh) loudly in the park. 5．The young lady (write) a new novel these days. 6．Look! The old man (fly) a kite in the park. 7．We can’t go out now. It’s (rain) so hard. 8．Don’t make a noise. The children are (study) online. 9．My mom is (run) in the park now. She usually (do) sports on weekends. 10．My brother (like) rock music. Look! He is (listen) to it. 11．My parents are (celebrate) their 30 years of marriage. 12．There are many students in the playground. Some (run), and the others are playing basketball. 13．A policeman is (stand) in the middle of the road directing the traffic. 14．Look! The students (dig) a hole. Are they going to plant trees? 15．The children are (create) their own stories. 16．My grandfather often (exercise) in the morning. But he isn’t (exercise) now. 17．Look! A deer is (stand) beside the road and eating grass. 18．I am riding a horse and my mother is (feed) chickens on the farm. 19．Look! They are (fly) kites on the playground. 20．The city is (put) on extra buses during the summer holiday. 21．—Look! The sun is going down. —Yes. And it (get) lower and lower. 22．They are (prepare) for the coming Children’s Day. 23．It’s 6:00 on Friday night. The Greens (talk) about the holiday. 24．—What are you doing? —I’m (write) a letter. 25．Two birds are (sing) in the trees outside our school. 26．My grandpa is (drink) tea in the garden now. 27．—What are you doing in the rainy weather? —I (listen) to music in my room. 28．Joe and his brother (sit) by the pool and drinking orange juice now. 29．— What are they doing? — They (shake) hands. 30．—I can’t find my mother. Where is she? —She (plant) flowers in the garden. 31．I am   (write) to thank you for helping me. 32．Today, more and more teachers are (use) AI to help with their work. 33．It’s 6:00 p.m. now. The family of mice (cook) a big dinner in the kitchen. 34．Look there, Mike (run) fast. Come on, Mike! 35．I can hear the bird. It (sing). 36．Who (sit) at my desk? Peter is. 37．I can see the boy. He (eat) an apple. 38．What the Lis (do)? 39．Now, I (sit) in front of Heather watching her write a letter. 40．The child (cry) over there. What’s wrong with him? 41．— you (fly) a kite?    —Yes, . 42．He (fix) a car. 43．What he (read)? 44．I (sing) an English song. 45．What you (do)? 46．Why the girl (stand) at the door? 47．Listen! Who is (sing) in the next room? 48． they (have) lunch at home now? 49．My mother is (shop) in the supermarket. 50．Don’t ask her for help. She (cook). 51．Listen! The students (sing) beautifully in the music classroom. 52．Tom is (exercise). It’s good for his health. 53．It’s 7: 00 p. m. now. The family of mice (have) a big dinner at home. 54．Look! Some boys are (draw) pictures under the tree. 55．Today is Sunday. Look, people happily in Wuhou Sports Park. (exercise) 56．Now Julie (listen) to music in her room. 57．—Where are the girls? —They (shop) in the supermarket. 58．It’s six thirty now. The Green family (eat) dinner. 59．I (not watch) TV now. 60．The children (fly) kites in the park now. 61．It’s 6:00 p. m. now. The Green family (have) dinner. 62．—What are they doing?    —They (listen) to a CD in the bedroom. 63．It’s two thirty. The students are in the classroom and studying hard.(sit) 64．Lisa and Jill aren’t at home now. They (take) a walk outside. 65．—What is he doing? —He is (use) the computer. 66．Listen! The boys (sing) in the room. 67．It’s 7:00 am. The Greens (have) breakfast at home. 68．Stephen is now (learn) Peking Opera in Beijing. 69．It’s 9:00 am. Some men (cut) trees over there. We should stop them. 70．Look! An old man (cross) the street. Let’s go up to help him. 71．Look! The ants (carry) some food back to their home. 72．Listen! Joan (sing) in the classroom. She often (sing) there. 73．Look! Linda is (perform) ballet in the dancing room. 74．It’s eight o’clock now. The students (have) English class. 75．Look! The little boy (play) with a cat. 76．He (wash) the dishes in the kitchen now. 77．One of them (take) photos for us now. 78．—What is your brother doing? —He (listen) to a CD． 79．—What is your sister doing? —She is her homework. She always her homework first after school. (do) 80．—Is your mother on the phone now? —Yes, she on the phone with my grandparents in the evening every day.(talk) 原创精品资源学科网独家享有版权，侵权必究！1 学科网（北京）股份有限公司 $$ Unit 8 Let’s celebrate! 语法专项 （主题：节假日与庆祝活动） 现在进行时 用所给单词的适当形式填空 现在进行时 1．Listen! My sister is (sing) in the next room. 【答案】singing 【详解】句意：听！我妹妹正在隔壁房间唱歌。根据“Listen! My sister is … in the next room.”以及提示词可知，此处应用现在进行时，构成为am/is/are doing，sing“唱歌”，动词，现在分词为singing。故填singing。 2．The boy (lie) on the bed now. 【答案】is lying 【详解】句意：那个男孩现在正躺在床上。根据“now”可知句子应用现在进行时，主语为The boy，be动词应用is，lie的现在分词为lying。故填is lying。 3．In the living room, some people (watch) TV, and the others are listening to the radio. 【答案】are watching 【详解】句意：在客厅里，一些人在看电视，其他人在听收音机。根据“and the others are listening to the radio”可知空处也应用现在进行时，结合空前的some people，所以是are watching。故填are watching。 4．We are (run) happily and (laugh) loudly in the park. 【答案】 running laughing 【详解】句意：我们正在公园里快乐地跑着，大声地笑着。根据“are”可知句子应用现在进行时，and连接两个并列谓语动词，run的现在分词为running，laugh的现在分词为laughing。故填running；laughing。 5．The young lady (write) a new novel these days. 【答案】is writing 【详解】句意：那位年轻女士这些天正在写一本新小说。根据“these days”可知句子应用现在进行时表示现阶段一直在做的事情，主语为The young lady，be动词应用is，write的现在分词为writing。故填is writing。 6．Look! The old man (fly) a kite in the park. 【答案】is flying 【详解】句意：看！那位老人正在公园里放风筝。根据“Look!”可知句子应用现在进行时，主语为The old man，be动词应用is，fly的现在分词为flying。故填is flying。 7．We can’t go out now. It’s (rain) so hard. 【答案】raining 【详解】句意：我们现在不能出去。雨下得这么大。根据“We can’t go out now. It’s … so hard”结合提示词可知，此处应用现在进行时，构成为am/is/are doing，rain“下雨”，动词，现在分词为raining。故填raining。 8．Don’t make a noise. The children are (study) online. 【答案】studying 【详解】句意：不要制造噪音。孩子们正在上网课。根据“Don’t make a noise.”可知，时态为现在进行时，所以动词用现在分词形式。故填studying。 9．My mom is (run) in the park now. She usually (do) sports on weekends. 【答案】 running does 【详解】句意：我妈妈现在正在公园里跑步。她通常在周末做运动。第一句中，now表示现在进行时所以动词需用现在分词，即running；第二句中，usually表示一般现在时，主语是三单形式“She”，动词需用三单形式，即does。故填running；does。 10．My brother (like) rock music. Look! He is (listen) to it. 【答案】 likes listening 【详解】句意： 我哥哥喜欢摇滚乐。看！他正在听。根据“My brother”可知，第一个空处主语为第三人称单数，时态为一般现在时，因此动词用三单likes；根据“Look! He is … to it.”可知，第二个空应用现在进行时，构成为am/is/are doing，listen的现在分词形式为listening。故填likes；listening。 11．My parents are (celebrate) their 30 years of marriage. 【答案】celebrating 【详解】句意：我的父母正在庆祝结婚30周年。根据“My parents are…their 30 years of marriage.”可知，句子时态为现在进行时，其结构be doing。动词celebrate“庆祝”，其现在分词形式为celebrating。故填celebrating。 12．There are many students in the playground. Some (run), and the others are playing basketball. 【答案】are running 【详解】句意：操场上有很多学生。有的在跑步，有的在打篮球。根据“and the others are playing basketball”可知，此处也应用现在进行时，空前的Some指代Some students，则be动词应用are。故填are running。 13．A policeman is (stand) in the middle of the road directing the traffic. 【答案】standing 【详解】句意：一位警察正站在路中间指挥交通。stand作动词，意为“站立”；根据“is”可知，句子时态为现在进行时，动词用现在分词。故填standing。 14．Look! The students (dig) a hole. Are they going to plant trees? 【答案】are digging 【详解】句意：看！学生们正在挖一个洞。他们要去种树吗？根据“Look!”可知，此处强调动作正在发生，用现在进行时（be doing），主语“The students”是复数。故填are digging。 15．The children are (create) their own stories. 【答案】creating 【详解】句意：孩子们正在创作他们自己的故事。由are可知句子时态为现在进行时，其结构为：主语+be动词+动词ing形式，create用现在分词，故填creating。 16．My grandfather often (exercise) in the morning. But he isn’t (exercise) now. 【答案】 exercises exercising 【详解】句意：我的祖父经常在早上锻炼。但他现在不锻炼。根据often和语境可知第一句时态应用一般现在时，主语为My grandfather，故用exercises；根据isn’t和now可知第二句时态应用现在进行时，故用exercising。故填exercises；exercising。 17．Look! A deer is (stand) beside the road and eating grass. 【答案】standing 【详解】句意：看！一只鹿站在路边吃草。根据“Look!”可知，句子时态要用现在进行时，空前有is，空处用动词的现在分词。故填standing。 18．I am riding a horse and my mother is (feed) chickens on the farm. 【答案】feeding 【详解】句意：我正在骑马，我妈妈正在农场喂鸡。根据“I am riding a horse”可知，时态为现在进行时，feed的现在分词为feeding。故填feeding。 19．Look! They are (fly) kites on the playground. 【答案】flying 【详解】句意：看！他们正在操场上放风筝。由“Look!”可知，此处表示正在发生的事情，要用现在进行时be doing，空前有are。故填flying。 20．The city is (put) on extra buses during the summer holiday. 【答案】putting 【详解】句意：这个城市在暑假期间增开公共汽车。根据“The city is…on extra buses during the summer holiday.”可知，此处指这个城市在暑假期间增开公共汽车，句子时态为现在进行时，其结构为“be doing”；空前为is，空处应填put的现在分词形式。故填putting。 21．—Look! The sun is going down. —Yes. And it (get) lower and lower. 【答案】is getting 【详解】句意：——看！太阳要落山了。——是的，而且越来越低。 考查现在进行时。根据“The sun is going down.”可知，太阳要落山了，由此可知太阳正在变得越来越低，故用现在进行时表示动作正在发生。现在进行时结构是am/is/are doing，主语是it，be动词是is；get的现在分词是getting。故填is getting。 22．They are (prepare) for the coming Children’s Day. 【答案】preparing 【详解】句意：他们正在为即将到来的儿童节做准备。此处应用现在分词preparing，与空前are构成现在进行时，故填preparing。 23．It’s 6:00 on Friday night. The Greens (talk) about the holiday. 【答案】are talking 【详解】句意：现在是周五晚上6点。格林一家正在谈论假期。根据“It’s 6:00 on Friday night.”以及语境，设空处可用现在进行时，其结构为“am/is/are+doing”，主语为“The Greens”，be动词用are。故填are talking。 24．—What are you doing? —I’m (write) a letter. 【答案】writing 【详解】句意：——你在做什么？——我正在写信。根据题干可知时态为现在进行时。表达正在做某事，基本结构为be＋doing，write的现在分词是writing。故填writing。 25．Two birds are (sing) in the trees outside our school. 【答案】singing 【详解】句意：两只鸟在我们学校外面的树上唱歌。sing唱歌，现在分词是singing。根据句中的are，并结合语境可知时态是现在进行时，结构是am/is/are+doing，空格处填singing。故填singing。 26．My grandpa is (drink) tea in the garden now. 【答案】drinking 【详解】句意：我爷爷现在正在花园喝茶。drink“喝”，动词。根据“now”可知，时态是现在进行时，结构是am/is/are doing。故填drinking。 27．—What are you doing in the rainy weather? —I (listen) to music in my room. 【答案】am listening 【详解】句意：——下雨天你在做什么？——我在房间听音乐。listen“听”，动词。根据“What are you doing”可知，时态是现在进行时，结构是am/is/are doing，主语是I，be动词用am。故填am listening。 28．Joe and his brother (sit) by the pool and drinking orange juice now. 【答案】are sitting 【详解】句意：乔和他的哥哥正坐在池边喝橙汁。此句主语Joe and his brother是第三人称复数，谓语动词也要用复数；根据句中“drinking”和“now”可知，此句时态为现在进行时，现在进行时的构成：be+动词现在分词。故填are sitting。 29．— What are they doing? — They (shake) hands. 【答案】are shaking 【详解】句意：——他们在做什么？——他们正在握手。根据“What are they doing?”可知，时态为现在进行时，主语“They”是复数，be动词则用are表示，动词shake用现在分词形式。故填are shaking。 30．—I can’t find my mother. Where is she? —She (plant) flowers in the garden. 【答案】is planting 【详解】句意：——我找不到我妈妈了。她在哪里？   ——她正在花园里种花。plant“种植”，动词。结合语境及问句“I can’t find my mother. Where is she?”可知，此处是在询问她现在在哪儿，时态应用现在进行时表示现在正在做的事情，其结构为“be doing”，主语she表示单数概念，be动词应用is。故填is planting。 31．I am   (write) to thank you for helping me. 【答案】writing 【详解】句意：我写信是为了感谢你对我的帮助。由句意及空前的am可知，句子时态为现在进行时，其结构为“is/am/are+doing”，write的现在分词是writing。故填writing。 32．Today, more and more teachers are (use) AI to help with their work. 【答案】using 【详解】句意：如今，越来越多的教师使用人工智能来协助他们的工作。分析句子可知，横线上是谓语动词，由“are”可知，此处是现在进行时be+doing，所以此处应用use的现在分词形式。故填using。 33．It’s 6:00 p.m. now. The family of mice (cook) a big dinner in the kitchen. 【答案】are cooking 【详解】句意：现在是下午6点。老鼠一家正在厨房里做一顿丰盛的晚餐。根据“It’s 6:00 p.m. now.”可知，句子时态是现在进行时，主语是复数，are cooking符合句意，故填are cooking。 34．Look there, Mike (run) fast. Come on, Mike! 【答案】is running 【详解】句意：看那边，迈克跑得很快。加油，迈克! 根据“Look there”可知，本句为现在进行时，其结构为am/is/are+doing。主语Mike，第三人称单数，系动词用is，run意为“奔跑”，现在分词形式为running。故填is running。 35．I can hear the bird. It (sing). 【答案】is singing 【详解】句意：我能听见那只鸟。它正在唱歌。根据“I can hear the bird. ”可知，句子为现在进行时，其结构为am/is/are+doing，主语It，系动词用is，故填is singing。 36．Who (sit) at my desk? Peter is. 【答案】is sitting 【详解】句意：谁坐在我的书桌旁？彼得。sit“坐”，根据“Peter is.”可知，此处用现在进行时，主语who是第三人称单数，谓语用第三人称单数形式，故填is sitting。 37．I can see the boy. He (eat) an apple. 【答案】is eating 【详解】句意：我能看见那个男孩。他正在吃苹果。根据“I can see the boy.”可知本句时态为现在进行时，此处表示“男孩正在吃苹果”。主语为“He”，第三人称单数，谓语动词应用is；eat“吃”，动词，应用现在分词形式，eat的现在分词为eating。故填is eating。 38．What the Lis (do)? 【答案】 are doing 【详解】句意：李家正在做什么？根据“What...the Lis...?”及提示词可知本句表示“李家正在做什么”，因此用现在进行时，主语是the Lis，The + 姓氏的复数，表示一家人，谓语动词用复数are；动词应用现在分词，do的现在分词为doing。故填are；doing。 39．Now, I (sit) in front of Heather watching her write a letter. 【答案】am sitting 【详解】句意：现在，我正坐在希瑟前面看她写信。根据“Now”可知，应用现在进行时，其结构为am/is/are+doing；sit意为“坐”，动词，其现在分词形式为sitting，主语为I。故填am sitting。 40．The child (cry) over there. What’s wrong with him? 【答案】is crying 【详解】句意：那个孩子正在那儿哭。他怎么了？根据第二句句意“他怎么了”可知，男孩应该正在那边哭。由于主语是三单，所以是is crying。故填is crying。 41．— you (fly) a kite?    —Yes, . 【答案】 Are/Can flying/fly I am/can 【详解】句意：——你正在放风筝吗？/你会放风筝吗？——是的，我在放。/是的，我会。根据所给空格和答语Yes可知，问句可为现在进行时的一般疑问句也可以为can开头的一般疑问句。主语为you，现在进行时中系动词用are，fly的现在分词为flying；肯定回答用Yes, I am。如果是can开头的一般疑问句，动词fly用原形，肯定回答是Yes, I can。故填Are/Can；flying/fly；I am/can。 42．He (fix) a car. 【答案】is fixing 【详解】句意：他正在修理一辆汽车。根据题干语境可知此处是指“正在修理一辆汽车”，因此用现在进行时。主语是He，第三人称单数，谓语动词用is；动词应用现在分词形式，fix修理，动词，其现在分词为fixing。故填is fixing。 43．What he (read)? 【答案】 is reading 【详解】句意：他在读什么？分析语境可知，本句用现在进行时am/is/are doing，主语是he，be用is，read的现在分词为reading。故填is；reading。 44．I (sing) an English song. 【答案】am singing 【详解】句意：我正在唱一首英文歌曲。sing“唱歌”，是动词，结合句意，表示我正在唱歌，因此用现在进行时，主语是I，谓语用am singing，故填am singing。 45．What you (do)? 【答案】 are doing 【详解】句意：你正在做什么？根据题干语境可知，本句时态为现在进行时，其结构为am/is/are+doing。主语you，第二人称，系动词用are。故填are；doing。 46．Why the girl (stand) at the door? 【答案】 is standing 【详解】句意：为什么那个女孩站在门口？根据“Why...at the door?”可知，本句时态为现在进行时，结构为am/is/are+doing，主语the girl，为第三人称单数，系动词用is；stand站立，其现在分词为standing。故填is；standing。 47．Listen! Who is (sing) in the next room? 【答案】singing 【详解】句意：听！谁在隔壁房间唱歌？根据“Listen!”可知，本句时态为现在进行时：be doing，因此动词sing“唱歌”应用现在分词形式。故填singing。 48． they (have) lunch at home now? 【答案】 Are having 【详解】句意：现在他们正在家里吃午饭吗？have“吃”，根据“now”可知，此处用现在进行时，主语they是复数形式，谓语用复数形式，此处是一般疑问句，助动词are提前位于句首，主语后用having，故填Are；having。 49．My mother is (shop) in the supermarket. 【答案】shopping 【详解】句意：我妈妈正在超市购物。根据句意和设空前的is可知，该句的时态是现在进行时：be doing，应用shop“购物”的现在分词形式。故填shopping。 50．Don’t ask her for help. She (cook). 【答案】is cooking 【详解】句意：不要向她求助。她正在做饭。cook“做饭”，是动词，根据“Don’t ask her for help.”可知，此处表示现在不要向她求助，因此表示她正在做饭，用现在进行时，主语she是第三人称单数，be动词用is，故填is cooking。 51．Listen! The students (sing) beautifully in the music classroom. 【答案】are singing 【详解】句意：听！学生们正在音乐教室里美妙地唱歌。根据句首的“listen”并结合句意可知，此句描述现在正在发生的事情，要用现在进行时，主语“the students”是复数，be动词用are。故填are singing。 52．Tom is (exercise). It’s good for his health. 【答案】exercising 【详解】句意：汤姆正在锻炼。这对他的健康有好处。exercise“锻炼”，根据空格前面的is可知，是现在进行时，因此填现在分词。故填exercising。 53．It’s 7: 00 p. m. now. The family of mice (have) a big dinner at home. 【答案】are having 【详解】句意：现在是晚上七点。老鼠一家正在家里吃大餐。根据now可知，本句时态为现在进行时be doing结构；主语为复数，所以be动词用are，have的现在分词为having。故填are having。 54．Look! Some boys are (draw) pictures under the tree. 【答案】drawing 【详解】句意：看！一些男孩正在树下画画。根据Look可知，句子要用现在进行时态is/am/are doing。draw的现在分词是drawing。故填drawing。 55．Today is Sunday. Look, people happily in Wuhou Sports Park. (exercise) 【答案】are exercising 【详解】句意：今天是星期天。看，人们正在武侯体育公园快乐地锻炼。根据“Look”可知，此处表示正在进行的动作，应用现在进行时态，主语是“people”，所以此处应填are exercising。故填are exercising。 56．Now Julie (listen) to music in her room. 【答案】is listening 【详解】句意：现在朱莉在她的房间里听音乐。根据“Now”可知，此处为现在进行时，主语为单数第三人称，使用结构is doing，故填is listening。 57．—Where are the girls? —They (shop) in the supermarket. 【答案】are shopping 【详解】句意：——女孩们在哪里？——他们正在超市购物。根据“Where are the girls?”及语境可知，女孩们是正在购物，时态应用现在进行时：am/is/are doing；主语They是复数，be动词用are；shop“购物”的现在分词是shopping。故填are shopping。 58．It’s six thirty now. The Green family (eat) dinner. 【答案】are eating 【详解】句意：现在是六点半。格林一家正在吃晚饭。根据“It’s six thirty now.”可知，此处应用现在进行时，构成为am/is/are doing，表示正在进行的动作，主语“The Green family” 为复数，因此用are eating“正在吃”。故填are eating。 59．I (not watch) TV now. 【答案】am not watching 【详解】句意：我现在没在看电视。根据“now”可知，句子是现在进行时，形式是“be+doing”，主语是I，be动词用am，因为是否定，所以在am后加not。故填am not watching。 60．The children (fly) kites in the park now. 【答案】are flying 【详解】句意：孩子们正在公园放风筝。根据“now”可知，时态是现在进行时，主语是复数，系动词用are。故填are flying。 61．It’s 6:00 p. m. now. The Green family (have) dinner. 【答案】are having 【详解】句意：现在是下午六点，格林一家人正在吃晚饭。根据“It’s 6:00 p. m. now.”可知，该句为现在进行时，现在进行时的结构为be+现在分词，主语“The Green family”表示格林一家人，为复数，be动词应用are；吃晚饭为have dinner，have的现在分词为having，故填are having。 62．—What are they doing?    —They (listen) to a CD in the bedroom. 【答案】are listening 【详解】句意：——他们在做什么？——他们正在卧室里听CD。根据“What are they doing?”以及提示词可知，此处应用现在进行时，构成为am/is/are doing，主语“They”为人称复数形式，因此用are listening。故填are listening。 63．It’s two thirty. The students are in the classroom and studying hard.(sit) 【答案】sitting 【详解】句意：现在是2:30。学生们正坐在教室里努力学习。根据are可知，此空应填现在分词与其构成现在进行时结构，故填sitting。 64．Lisa and Jill aren’t at home now. They (take) a walk outside. 【答案】are taking 【详解】句意：Lisa和Jill现在不在家。她们正在外面散步。结合语境可知，句子“They...(take) a walk outside.”用现在进行时“am/is/are doing”，主语是they，此时be动词应用are，后接现在分词taking。故填are taking。 65．—What is he doing? —He is (use) the computer. 【答案】using 【详解】句意：——他在做什么？——他在用电脑。分析句子结构可知空格处为本句谓语动词部分，且根据“What is he doing?”和“He is...”可知应用现在分词形式，故填using。 66．Listen! The boys (sing) in the room. 【答案】are singing 【详解】句意：听！男孩们在房间里唱歌。根据“Listen!”可知，本句要用现在进行时，其结构为am/is/are +doing。主语是The boys，所以be动词要用are。故填are singing。 67．It’s 7:00 am. The Greens (have) breakfast at home. 【答案】are having 【详解】句意：现在是上午7点，格林一家人正在家吃早饭。由“It’s 7:00 am.”可知说话当下的具体时间点发生的事情，需用现在进行时“am/is/are+doing”形式。 主语“The Greens”是复数，be动词用are。故填are having。 68．Stephen is now (learn) Peking Opera in Beijing. 【答案】learning 【详解】句意：斯蒂芬现在在北京学习京剧。now用于现在进行时，其结构是：be+动词现在分词，所以空格处应填learn的现在分词learning。故填learning。 69．It’s 9:00 am. Some men (cut) trees over there. We should stop them. 【答案】are cutting 【详解】句意：现在是上午9点。那边有些人正在砍树。我们应该制止他们。根据“It’s 9:00 am.”可知此处为现在进行时：is/are doing，主语为复数，be动词用are。故填are cutting。 70．Look! An old man (cross) the street. Let’s go up to help him. 【答案】is crossing 【详解】句意：看！一位老人正在过马路。我们上去帮他吧。根据提示词“Look!”可知，此句应用现在进行时“主语+be动词+现在分词”。主语“an old man”是单数名词，因此be动词应用“is”，动词变为现在分词“crossing”。故填is crossing。 71．Look! The ants (carry) some food back to their home. 【答案】are carrying 【详解】句意：看！蚂蚁们正把一些食物带回它们的家。根据“Look!”可知，该句时态为现在进行时，谓语动词结构为“is/am/are+doing”；主语ants为复数，be动词应用are。故填are carrying。 72．Listen! Joan (sing) in the classroom. She often (sing) there. 【答案】 is singing sings 【详解】句意：听！琼在教室里唱歌。她经常在那里唱歌。根据“Listen!”可知，第一句是现在进行时，主语是三单，be动词用is；第二空根据“often”可知，句子是一般现在时，主语是第三人称单数，动词用三单形式。故填is singing；sings。 73．Look! Linda is (perform) ballet in the dancing room. 【答案】performing 【详解】句意：看！琳达正在舞蹈室里表演芭蕾舞。根据“Look”可知，句子时态是现在进行时，其谓语动词构成是“be+动词现在分词形式”，因此此处用动词现在分词形式performing，意为“表演”。故填performing。 74．It’s eight o’clock now. The students (have) English class. 【答案】are having 【详解】句意：现在是八点钟。学生们正在上英语课。根据“It’s eight o’clock now.”可知，本句时态为现在进行时“is/am/are doing”结构，主语students为复数形式，所以be动词用are，have的现在分词为having。故填are having。 75．Look! The little boy (play) with a cat. 【答案】is playing 【详解】句意：看！那个小男孩正在和猫玩。根据“Look”可知此处表示动作正在进行，用现在进行时，主语是名词单数，be动词用is。故填is playing。 76．He (wash) the dishes in the kitchen now. 【答案】is washing 【详解】句意：他现在正在厨房里洗碗。根据“now”可知表示正在进行的动作，用现在进行时be doing，主语是He，be动词用is。故填is washing。 77．One of them (take) photos for us now. 【答案】is taking 【详解】句意：他们中的一个人现在正在给我们拍照。由“now”可知句子要用现在进行时，其结构为“am/is/are doing”；主语是“One of them”，be动词应用is，take的现在分词形式为taking。故填is taking。 78．—What is your brother doing? —He (listen) to a CD． 【答案】is listening 【详解】句意：——你哥哥在干什么？——他正在听CD。根据“What is your brother doing?”可知，问句是现在进行时，回答也用现在进行时，主语是he，be动词用is。故填is listening。 79．—What is your sister doing? —She is her homework. She always her homework first after school. (do) 【答案】 doing does 【详解】句意：——你妹妹在做什么？——她正在做作业。放学后她总是先做作业。根据“What is your sister doing?”可知，第一句用现在进行时“be doing”结构表达，所以动词用现在分词doing；第二句结合always可知，时态为一般现在时，主语she为第三人称单数，所以动词用三单形式does。故填doing；does。 80．—Is your mother on the phone now? —Yes, she on the phone with my grandparents in the evening every day.(talk) 【答案】 talking talks 【详解】句意：——你妈妈正在打电话吗？——是的，她每天晚上都和我的祖父母通电话。talk“交谈”，动词。第一空根据“now”可知，应用现在进行时，动词用现在分词；第二空根据“every day”可知，应用一般现在时，主语是第三人称单数，动词用三单形式，故填talking；talks。 原创精品资源学科网独家享有版权，侵权必究！1 学科网（北京）股份有限公司 $$