Unit 6 A Look into the Past 情态动词（核心语法精练）英语新教材鲁教版五四制九年级全一册

**基本信息** 以表格系统归纳情态动词用法，通过分层题型实现“概念-辨析-综合运用”的逻辑递进，强化语境中语言运用能力与思维辨析能力。 **专项设计** |模块|题量/典例|方法提炼|知识逻辑| |----|-----------|----------|----------| |知识回顾|1表格|分类总结情态动词基本用法（能力/请求）和表推测（must一定/can’t不可能等）|从核心概念出发，构建“功能-语义”对应关系| |考点夯基|单选15题/填空10题/翻译5题|通过语境辨析情态动词差异，强化“情境-用法”匹配|从单一用法到多情境应用，提升语言表达准确性| |综合提升|完形1篇/语法填空1篇|在语篇中综合运用情态动词，培养逻辑推理能力|从句子层面到语篇层面，实现知识迁移与思维品质提升|

Unit 6 A Look into the Past 核心语法精练 （情态动词） 目录 二、考点夯基 1 一、单项选择 2 二、用适当的情态动词填空，完成句子。 3 三、翻译句子 4 三、综合提升 4 一、完形填空 4 二、语法填空 5 情态动词基本 用法 can / could 表示能力或表示请求或许可。 may / migh 表示请求或许可。 must 表示必须主观义务或强烈建议。 should 表示劝告或建议，意为“应该”。 情态动词表推测 must 一定 Could/might /may 可能,也许，或许 can’t 不可能 一、单项选择 1. —Whose volleyball is this? —It ________ be Lucy’s. She loves volleyball. A. can’t B. must C. mustn’t D. needn’t 2. —Where are you going this summer vacation? —I ________ go to Zibo, but I’m not sure. A. must B. needn’t C. might D. should 3. —Is that Jim running on the playground? —It ________ be him. He is always in the library at this time. A. mustn’t B. shouldn’t C. can’t D. needn’t 4.They worked hard so they _________buy what they wanted each and had a little fun. A. should B. would C. must D. could 5.—He______be in the classroom，I think． —No，he____be in the classroom．I saw him go home a minute ago． A. can； may not B. must； may not C. may； mustn't D. may； can't 6. 2.--Will Anna go to the movies with us tonight? -- She ____________ go, but I’m not sure. A. may B. can C. must D. should 7.—________ I have your family name? —Of course. It’s Smith. A．May B．Must C．Should D.Need 8．—Is that young lady with straight hair your aunt, Li Ming? —No, it ________ be her. She has gone to the Horticultural Exhibition (园艺博览会). A．mustn’t B．can’t C．can D．must 9.The water bottle ________ be Mr. Liu’s. The name on the bottle isn’t his. A．must B．may C．mustn’t D．can’t 10．—Lily, how is Daniel’s plan for our class trip going on? —I’m not sure. It ________ be completed. I saw him working on it this morning. A．may not B．shouldn’t C．can’t D．mustn’t 11.—________ you teach me to play basketball, Simon? —Sure. Let’s go! A．Shall B．Can C．Might D．Need 12.Hey, Julie. I’ve had a problem recently. ________ you help me? A．Can B．Must C．Should D．May 13.It’s true that robots ______ do a lot of things, such as telling stories, doing kung fu and so on. A．may B．must C．can D．might 14.—Mom, ________ I go to the cinema with my classmates this Sunday afternoon? —Yes, of course you can. A．can B．must C．need D．should 15.– Mum, it’s too hot. ________ I swim in the lake? -No, you ___________. That’s too dangerous! A. Should; can’t B. Need; mustn’t C. Must; needn’t D. Could; mustn’t 二、 用适当的情态动词填空。 1.—________ I have your family name? —Of course. It’s Smith. 2.—Is that young lady with straight hair your aunt, Li Ming? —No, it ________ be her. She has gone to the Horticultural Exhibition (园艺博览会). 3.The water bottle ________ be Mr. Liu’s. The name on the bottle isn’t his. 4.—Lily, how is Daniel’s plan for our class trip going on? —I’m not sure. It ________ be completed. I saw him working on it this morning. 5.—________ you teach me to play basketball, Simon? —Sure. Let’s go! 6.Hey, Julie. I’ve had a problem recently. ________ you help me? 7.It’s true that robots ______ do a lot of things, such as telling stories, doing kung fu and so on. 8.—Mom, ________ I go to the cinema with my classmates this Sunday afternoon? —Yes, of course you can. 9.– Mum, it’s too hot. ________ I swim in the lake? -No, you ___________. That’s too dangerous! 10.— __________ I complete the composition today, sir? —No, you needn’t. You may hand it in tomorrow morning. 三、翻译句子 1.——妈妈，我可以邀请我的朋友们来参加周六的派对吗？ ——当然可以。听起来很有趣。 —________________________________________，Mom？ —Of course you can．That sounds like fun． 2.在一些国家，人们不可以不付费就从网上下载音乐，因为这是违法行为。 In some countries，_____________________ from the Internet without paying，because it's against the law． 3.——我很想和你一起去水上乐园，但是我不会游泳。——没关系，我会教你。 ﹣I'd love to go to the water park with you．___________________． ﹣It doesn't matter．I will teach you． 4.我们在电影院应当保持安静，我们不许大声交谈。 ___________________________．We mustn't speak loudly． 5.你不许独自出发，否则你可能会在丛林中迷路。 __________________________________，or you might get lost in the jungle． 一、完形填空 The Mystery of the Lost Key Last weekend, my brother Tom and I 1.______ clean the attic（顶楼）. It 2. ______ a dark room, and the air 3.______ dusty. Suddenly, Tom shouted, "Look! This old box 4.______ be opened without Dad’s permission!" But I replied, "We 5. ______ check inside. There 6.______ be something important in it !" When we opened it, there 7.______ a rusty (生锈的）key and a note. The note said, "This key 8.______ unlock the wooden box under the stairs." Tom’s hands 9. ______ shaky (颤抖的）, but I 10.______ determined（坚定的） to solve the mystery. We ran downstairs, but the box 11. ______ impossible to open. "It 12.______ be stuck forever!" I said. Finally, after three tries, the key worked! Inside, we found old photos. They 13,______ pictures of our grandparents. Mom later told us, "Treasures 14.______ always hidden where love 15. ______." 1.A. had to B. should have C. could D. might 2. A. was B. is C. were D. are 3. A. felt B. smelt C. tasted D. sounded 4. A. must not B. need not C. might not D. would not 5. A. should B. must C. might D. need 6. A. could B. must C. should D. need 7. A. was B. were C. is D. are 8. A. should B. must C. could D. might 9. A. turned B. became C. looked D. grew 10. A. am B. was C. were D. been 11. A. looked B. appeared C. seemed D. sounded 12. A. can’t B. mustn’t C. shouldn’t D. needn’t 13. A. were B. was C. had been D. has been 14. A. are B. were C. have been D. had been 15. A. exists B. existed C. is existing D. has existed 二、 语法填空。 阅读下面短文，用括号内所给动词的适当形式填空（必要时可加情态动词或助动词)。 “Alex! Jen! It’s time for dinner!” Mom called. “Mom! We ____ 1____ (make) a treehouse! Wait a minute!” Alex shouted. At dinner, Dad said, “We have something to tell you. Our neighbor, Mr Morris, came to our house ____ 2____ (talk) to us today. He wants us to cut down our tree because the leaves fall into his yard. Then he has to clean them.” “No! That’s our favorite tree. I ____ 3____ (love) it ever since I was just a little baby!” Jen cried. “Yeah, and the tree is old and beautiful. It helps keep our air clean. It also ____ 4____ (give) us shade (树荫) from the sun,” Alex said. Everybody had special memories of the tree. They all shared their favorite ones. “One of my favorite memories is how excited you were when the leaves began to fall,” said Mom. “We ____ 5____ (jump) into the huge piles (堆) of colorful leaves every autumn,” said Alex. Jen nodded. “I remember the time we had a picnic for the whole neighborhood,” said Dad. “It was so nice.” “It’s brought us all so many great memories. Something must be done.” Mom said. “Yes,” said Jen. “We ____ 6____ (save) our tree!” After dinner the whole family discussed what to do. “I have a good idea!” said Alex. “I can make a chart showing him when leaves fall. And we can promise him that we ____ 7____ (help) clean the leaves in the future!” Everyone agreed. The next day, the whole family went to visit Mr Morris. At that time, he ____ 8____ (clean) the yard. “Mr Morris, this tree is very special to our family. If we offer to help clean its leaves, would you consider ____ 9____ (keep) it?” Dad said. Alex handed Mr Morris his chart. Mr Morris was quiet for a moment. Then he said, “I guess if the tree is that important to you all, and I can get some help with cleaning, the tree can stay.” The tree ____10____ (save)! Everyone in the neighborhood, even Mr Morris, came to celebrate. 1 / 12 学科网（北京）股份有限公司 $ Unit 6 A Look into the Past 核心语法精练 （情态动词） 参考答案 一、单项选择。 1.B 2.C 3.C 4.D 5.D 6.A 7.A 8.B 9.D 10.A 11.B 12.A 13.C 14.A 15.D 二、 用适当的情态动词填空。 1.May/Could 2.can’t 3.can’t 4.may not 5.Could/Can 6.Can 7.can 8.can 9.Could; mustn’t 10.Must 三、翻译句子，根据汉语提示完成句子。 1.Could I invite my friends to the party on Saturday 2. people mustn't download music 3.But I can't swim 4.We should keep quiet in the cinema 5.You mustn't set out alone 一、完形填空 1.A 2.A 3.B 4.A 5.A 6.B 7.A 8.C 9.B 10.B 11.C 12.A 13.A 14.A 15.A 二、语法填空 1. are making 2. to talk 3. have loved 4. gives 5. jumped 6. must save 7. will help 8. was cleaning 9. keeping 10. was saved 1 / 12 学科网（北京）股份有限公司 $ Unit 6 A Look into the Past 核心语法精练 （情态动词） 目录 二、考点夯基 1 一、单项选择 2 二、用适当的情态动词填空，完成句子。 4 三、翻译句子 5 三、综合提升 6 一、完形填空 6 二、语法填空 8 情态动词基本 用法 can / could 表示能力或表示请求或许可。 may / migh 表示请求或许可。 must 表示必须主观义务或强烈建议。 should 表示劝告或建议，意为“应该”。 情态动词表推测 must 一定 Could/might /may 可能,也许，或许 can’t 不可能 一、单项选择 1. —Whose volleyball is this? —It ________ be Lucy’s. She loves volleyball. A. can’t B. must C. mustn’t D. needn’t 2. —Where are you going this summer vacation? —I ________ go to Zibo, but I’m not sure. A. must B. needn’t C. might D. should 3. —Is that Jim running on the playground? —It ________ be him. He is always in the library at this time. A. mustn’t B. shouldn’t C. can’t D. needn’t 4.They worked hard so they _________buy what they wanted each and had a little fun. A. should B. would C. must D. could 5.—He______be in the classroom，I think． —No，he____be in the classroom．I saw him go home a minute ago． A. can； may not B. must； may not C. may； mustn't D. may； can't 6. 2.--Will Anna go to the movies with us tonight? -- She ____________ go, but I’m not sure. A. may B. can C. must D. should 7.—________ I have your family name? —Of course. It’s Smith. A．May B．Must C．Should D.Need 8．—Is that young lady with straight hair your aunt, Li Ming? —No, it ________ be her. She has gone to the Horticultural Exhibition (园艺博览会). A．mustn’t B．can’t C．can D．must 9.The water bottle ________ be Mr. Liu’s. The name on the bottle isn’t his. A．must B．may C．mustn’t D．can’t 10．—Lily, how is Daniel’s plan for our class trip going on? —I’m not sure. It ________ be completed. I saw him working on it this morning. A．may not B．shouldn’t C．can’t D．mustn’t 11.—________ you teach me to play basketball, Simon? —Sure. Let’s go! A．Shall B．Can C．Might D．Need 12.Hey, Julie. I’ve had a problem recently. ________ you help me? A．Can B．Must C．Should D．May 13.It’s true that robots ______ do a lot of things, such as telling stories, doing kung fu and so on. A．may B．must C．can D．might 14.—Mom, ________ I go to the cinema with my classmates this Sunday afternoon? —Yes, of course you can. A．can B．must C．need D．should 15.– Mum, it’s too hot. ________ I swim in the lake? -No, you ___________. That’s too dangerous! A. Should; can’t B. Need; mustn’t C. Must; needn’t D. Could; mustn’t 【答案】1.B 2.C 3.C 4.D 5.D 6.A 7.A 8.B 9.D 10.A 11.B 12.A 13.C 14.A 15.D 【解析】 1.句意：——这是谁的排球？——一定是露西的，她喜爱排球。must表示肯定推测，意为一定，故选B。 2.句意：——这个暑假你打算去哪里？——我可能去淄博，但我不确定。might表示把握不大的推测，意为可能，故选C。 3.句意：——那是吉姆在操场上跑步吗？——不可能是他，这个时间他总在图书馆。can’t表否定推测，意为不可能，故选C。 4.句意：他们努力工作，所以能够买到自己想要的东西，还能找点乐子。could表示过去的能力，意为能够，故选D。 5.句意：——我认为他可能在教室里。——不，不可能在教室，一分钟前我看见他回家了。第一空may表推测可能；第二空can’t表否定推测不可能，故选D。 6.句意：——安娜今晚和我们一起去看电影吗？——她可能会去，但是我不确定。may表示把握不大的推测，意为可能，故选A。 7.句意：——我可以知道你的姓氏吗？——当然可以，是史密斯。may用于礼貌请求许可，故选A。 8.句意：——李明，那位直发的年轻女士是你的阿姨吗？——不，不可能是她，她去园艺博览会了。can’t用于否定推测，意为不可能，故选B。 9.句意：这个水壶不可能是刘先生的，水壶上面的名字不是他的。can’t表否定推测不可能，故选D。 10.句意：——莉莉，丹尼尔的班级旅行计划进展如何？——我不确定，它可能还没完成，今早我看见他还在做。may not表示可能不，用于不确定推测，故选A。 11.句意：——西蒙，你能教我打篮球吗？——当然，我们走吧。can用于口语请求对方帮忙，故选B。 12.句意：嘿，朱莉，我最近遇到麻烦了，你能帮帮我吗。can用于日常口语请求帮助，故选A。 13.句意：机器人确实可以做很多事，例如讲故事、练功夫等等。can表示具备做某事的能力，故选C。 14.句意：——妈妈，这周日下午我可以和同学去看电影吗？——当然可以。can用来提出请求，故选A。 15.句意：——妈妈天太热，我可以去湖里游泳吗？——不行，不准去，那太危险。第一空could委婉请求；第二空mustn’t表示禁止，故选D。 二、 用适当的情态动词填空。 1.—________ I have your family name? —Of course. It’s Smith. 2.—Is that young lady with straight hair your aunt, Li Ming? —No, it ________ be her. She has gone to the Horticultural Exhibition (园艺博览会). 3.The water bottle ________ be Mr. Liu’s. The name on the bottle isn’t his. 4.—Lily, how is Daniel’s plan for our class trip going on? —I’m not sure. It ________ be completed. I saw him working on it this morning. 5.—________ you teach me to play basketball, Simon? —Sure. Let’s go! 6.Hey, Julie. I’ve had a problem recently. ________ you help me? 7.It’s true that robots ______ do a lot of things, such as telling stories, doing kung fu and so on. 8.—Mom, ________ I go to the cinema with my classmates this Sunday afternoon? —Yes, of course you can. 9.– Mum, it’s too hot. ________ I swim in the lake? -No, you ___________. That’s too dangerous! 10.— __________ I complete the composition today, sir? —No, you needn’t. You may hand it in tomorrow morning. 【答案】 1.May/Could 2.can’t 3.can’t 4.may not 5.Could/Can 6.Can 7.can 8.can 9.Could; mustn’t 10.Must 【解析】 1.句意：——我可以知道你的姓氏吗？——当然可以。是史密斯。此处礼貌请求对方告知姓氏，May/Could用于礼貌请求许可，故填May/Could。 2.句意：——李明，那位直发的年轻女士是你的阿姨吗？——不，不可能是她。她去园艺博览会了。此处表示否定推测，can’t意为“不可能”，故填can’t。 3.句意：这个水壶不可能是刘先生的。水壶上的名字不是他的。依据瓶上名字不是他的，做否定推测，can’t表示不可能，故填can’t。 4.句意：——Lily，Daniel的班级旅行计划进展如何？——我不确定。它可能还没被完成。我今天早上看到他在做。may not表示“可能不”，用于不确定的推测，故填may not。 5.句意：——西蒙，你能教我打篮球吗？——当然可以。我们走吧。此处口语请求对方帮忙，Could/Can用于请求，故填Could/Can。 6.句意：嘿，朱莉。我最近遇到一个问题。你能帮我吗？本句为日常口语请求帮助，Can表示可以，故填Can。 7.句意：机器人确实能做很多事情，比如讲故事、练功夫等等。can用来表示具备某种能力，故填can。 8.句意：——妈妈，这个星期天下午我能和同学们一起去看电影吗？——是的，你当然可以。根据答语can，此处用can提出请求，故填can。 9.句意：——妈妈，太热了。我能去湖里游泳吗？——不，你不准去。那太危险了。第一空Could表委婉请求；第二空mustn’t表示禁止，故填Could; mustn’t。 10.句意：——老师，我今天必须完成作文吗？——不，你不必。你可以明天早上交。Must引导的一般疑问句，否定回答用needn’t，故填Must。 三、翻译句子 1.——妈妈，我可以邀请我的朋友们来参加周六的派对吗？ ——当然可以。听起来很有趣。 —________________________________________，Mom？ —Of course you can．That sounds like fun． 2.在一些国家，人们不可以不付费就从网上下载音乐，因为这是违法行为。 In some countries，_____________________ from the Internet without paying，because it's against the law． 3.——我很想和你一起去水上乐园，但是我不会游泳。——没关系，我会教你。 ﹣I'd love to go to the water park with you．___________________． ﹣It doesn't matter．I will teach you． 4.我们在电影院应当保持安静，我们不许大声交谈。 ___________________________．We mustn't speak loudly． 5.你不许独自出发，否则你可能会在丛林中迷路。 __________________________________，or you might get lost in the jungle． 【答案】1.Could I invite my friends to the party on Saturday 2. people mustn't download music 3.But I can't swim 4.We should keep quiet in the cinema 5.You mustn't set out alone 一、完形填空 The Mystery of the Lost Key Last weekend, my brother Tom and I 1.______ clean the attic（顶楼）. It 2. ______ a dark room, and the air 3.______ dusty. Suddenly, Tom shouted, "Look! This old box 4.______ be opened without Dad’s permission!" But I replied, "We 5. ______ check inside. There 6.______ be something important in it !" When we opened it, there 7.______ a rusty (生锈的）key and a note. The note said, "This key 8.______ unlock the wooden box under the stairs." Tom’s hands 9. ______ shaky (颤抖的）, but I 10.______ determined（坚定的） to solve the mystery. We ran downstairs, but the box 11. ______ impossible to open. "It 12.______ be stuck forever!" I said. Finally, after three tries, the key worked! Inside, we found old photos. They 13,______ pictures of our grandparents. Mom later told us, "Treasures 14.______ always hidden where love 15. ______." 1.A. had to B. should have C. could D. might 2. A. was B. is C. were D. are 3. A. felt B. smelt C. tasted D. sounded 4. A. must not B. need not C. might not D. would not 5. A. should B. must C. might D. need 6. A. could B. must C. should D. need 7. A. was B. were C. is D. are 8. A. should B. must C. could D. might 9. A. turned B. became C. looked D. grew 10. A. am B. was C. were D. been 11. A. looked B. appeared C. seemed D. sounded 12. A. can’t B. mustn’t C. shouldn’t D. needn’t 13. A. were B. was C. had been D. has been 14. A. are B. were C. have been D. had been 15. A. exists B. existed C. is existing D. has existed 【答案】 1.A 2.A 3.B 4.A 5.A 6.B 7.A 8.C 9.B 10.B 11.C 12.A 13.A 14.A 15.A 【解析】 【导语】本文讲述了作者和哥哥在阁楼发现旧盒子，找到一把神秘钥匙，最终解开宝藏秘密的小故事。 1.句意：上周末，我和哥哥汤姆不得不打扫顶楼。last weekend 是过去时，have to 表示“不得不”，符合语境。故为 A。 2句意：它是一间黑暗的房间。全文过去时，it 是单数，用 was。故为 A。 3句意：空气闻起来有灰尘。smell 闻起来；空气有灰尘用 smelt。故为 B。 4.句意：这个旧盒子没爸爸允许绝不能打开。must not 表示“禁止、不准”。故为 A。 5.句意：我们应该检查一下里面。should 表示“应该”，提出建议。故为 A。 6.句意：里面一定有重要的东西。must 表示肯定推测“一定”。故为 B。 7.句意：里面有一把生锈的钥匙和一张纸条。there be 句型就近一致，a key 单数，过去时用 was。故为 A。 8.句意：这把钥匙能打开楼梯下的木盒子。could 表示“能够”，过去的能力。故为 C。 9.句意：汤姆的手变得颤抖。become 表示“变得”，强调状态变化。故为 B。 10.句意：但我下定决心要解开这个谜。I 作主语，过去时用 was。故为 B。 11.句意：盒子似乎打不开。seem 表示“似乎、好像”，符合语境。故为 C。 12. 句意：它可能永远卡住了！can’t 表示“不可能”，此处表推测。故为 A。 13.句意：它们是我们祖父母的照片。they 复数，过去时用 were。故为 A。 14.句意：宝藏总是藏在有爱的地方。引号内为客观真理，用一般现在时，treasures 复数用 are。故为 A。 15.句意：宝藏总是藏在有爱的地方。客观真理用一般现在时，love 不可数，用 exists。故为 A。 二、 语法填空。 阅读下面短文，用括号内所给动词的适当形式填空（必要时可加情态动词或助动词)。 “Alex! Jen! It’s time for dinner!” Mom called. “Mom! We ____ 1____ (make) a treehouse! Wait a minute!” Alex shouted. At dinner, Dad said, “We have something to tell you. Our neighbor, Mr Morris, came to our house ____ 2____ (talk) to us today. He wants us to cut down our tree because the leaves fall into his yard. Then he has to clean them.” “No! That’s our favorite tree. I ____ 3____ (love) it ever since I was just a little baby!” Jen cried. “Yeah, and the tree is old and beautiful. It helps keep our air clean. It also ____ 4____ (give) us shade (树荫) from the sun,” Alex said. Everybody had special memories of the tree. They all shared their favorite ones. “One of my favorite memories is how excited you were when the leaves began to fall,” said Mom. “We ____ 5____ (jump) into the huge piles (堆) of colorful leaves every autumn,” said Alex. Jen nodded. “I remember the time we had a picnic for the whole neighborhood,” said Dad. “It was so nice.” “It’s brought us all so many great memories. Something must be done.” Mom said. “Yes,” said Jen. “We ____ 6____ (save) our tree!” After dinner the whole family discussed what to do. “I have a good idea!” said Alex. “I can make a chart showing him when leaves fall. And we can promise him that we ____ 7____ (help) clean the leaves in the future!” Everyone agreed. The next day, the whole family went to visit Mr Morris. At that time, he ____ 8____ (clean) the yard. “Mr Morris, this tree is very special to our family. If we offer to help clean its leaves, would you consider ____ 9____ (keep) it?” Dad said. Alex handed Mr Morris his chart. Mr Morris was quiet for a moment. Then he said, “I guess if the tree is that important to you all, and I can get some help with cleaning, the tree can stay.” The tree ____10____ (save)! Everyone in the neighborhood, even Mr Morris, came to celebrate. 【答案】 1. are making 2. to talk 3. have loved 4. gives 5. jumped 6. must save 7. will help 8. was cleaning 9. keeping 10. was saved 【解析】 【导语】本文主要讲述了邻居来抱怨作者家里的大树上的落叶让邻居很苦恼，所以建议要砍掉这棵大树。家人们在回忆了这棵大树带来的好处之后，决定要保留这棵大树。于是去跟邻居商量，帮忙打扫他家院子里的落叶，最终邻居同意了。 1.句意：我们正在做一个树屋。根据“Wait a minute”可知，正在做树屋，所以说等一会，用现在进行时表示正在进行的动作，主语we是复数形式，助动词用are，故填are making。 2.句意：我们的邻居莫里斯先生今天来我们家和我们谈话。根据“came to our house… to us”可知，来家里的目的是谈话，所以用动词不定式作目的状语，故填to talk。 3.句意：从我还是个小婴儿的时候我就喜欢它了！该句是“since+一般过去时”的从句，主句用现在完成时结构“have/has done”，主语I是第一人称，助动词用have，故填have loved。 4.句意：它也给我们遮阳。根据前一句的“helps”可知，此句用一般现在时，主语It是第三人称单数形式，动词用三单，故填gives。 5.句意：每年秋天，我们都会跳进一大堆五颜六色的树叶中。根据“were”以及“began”可知，此句是一般过去时，动词用过去式，故填jumped。 6.句意：我们必须要保留我们的树！根据前文的描述可知，家里的每一位成员都发表了这棵大树给自己留下的美好的回忆，所以这里是说必须要把这棵树保留下来，must“必须”，后接动词原形，故填must save。 7.句意：我们可以向他保证，以后我们会帮助清理树叶！根据“in the future”可知，此处用一般将来时will do的结构，故填will help。 8.句意：那时，他正在打扫院子。根据“At that time”可知，此处用过去进行时“was/were doing”的结构，主语he是第三人称单数形式，助动词用was，故填was cleaning。 9.句意：如果我们愿意帮忙清理它的叶子，你会考虑留下它吗？consider doing sth“考虑做某事”，动名词作宾语，故填keeping。 10.句意：这棵树被保留下来了！主语“The tree”与动词save之间是被动关系，结合后一句“came”可知，此处用一般过去时被动语态“was/were done”，主语是单数形式，助动词用was，故填was saved。 1 / 12 学科网（北京）股份有限公司 $