Unit 6 语法专练- 2025-2026学年人教版七年级英语下册

人教版7下第六单元语法专练 现在进行时 II 第一部分：知识点细致讲解 一、现在进行时的基本概念 简单定义： 现在进行时表示说话时正在进行或发生的动作。 例句： 我正在吃饭。 I am eating dinner. 她正在唱歌。 She is singing. 他们正在踢足球。 They are playing football. 2. 现在进行时的三个核心用法 用法一：说话时刻正在进行的动作 这是现在进行时最基本的用法，强调在说话的这一刻，动作正在进行。 例句： 你现在正在做什么？ What are you doing right now? 别说话，老师在讲课。 Don't talk, the teacher is giving a lesson. 听！有人在敲门。 Listen! Someone is knocking at the door. 看！公交车来了。 Look! The bus is coming. 我不能接电话，我正在洗澡。 I can't answer the phone. I am taking a shower. 用法二：当前阶段正在进行的动作（不一定在说话这一刻） 有时候，动作不一定在说话的这一刻发生，但处于当前这个阶段。 例句： 这个月我正在写一本小说。 I am writing a novel this month. 最近她正在学弹钢琴。 She is learning to play the piano these days. 这周我们在准备期末考试。 We are preparing for the final exam this week. 最近他在读一本很有趣的书。 He is reading a very interesting book these days. 我现在在一家餐厅打工。 I am working at a restaurant now. 用法三：表示近期计划好的安排（尤其用于位移动词） 一些表示位置移动的动词，用现在进行时可以表示“即将发生”或“计划好的将来动作”。 常见位移动词： go 去，come 来，leave 离开，arrive 到达，start 开始，begin 开始，fly 飞，travel 旅行，move 搬家 例句： 我明天要去北京。 I am going to Beijing tomorrow. 她今晚要来看我。 She is coming to see me tonight. 火车马上就要到了。 The train is arriving soon. 他们下个月要搬家。 They are moving next month. 飞机几点起飞？ What time is the plane taking off? 我们周末要去看电影。 We are seeing a movie this weekend. 二、现在进行时的标志词 这些词出现时，通常要用现在进行时。掌握这些标志词，可以帮助你快速判断何时使用现在进行时。 1. 时间状语类标志词 now 现在 我正在写作业。 I am doing my homework now. right now 此刻，马上 他们此刻正在打篮球。 They are playing basketball right now. at the moment 此刻 老师此刻正在和校长谈话。 The teacher is talking to the headmaster at the moment. at present 目前，现在 目前我们正在学习现在进行时。 We are learning the present continuous tense at present. today 今天 你今天看起来很开心。 You are looking very happy today. this week 这周 这周我们在进行测试。 We are having tests this week. these days 这些天，最近 最近她在练瑜伽。 She is practicing yoga these days. 2. 提示语类标志词 Listen! 听！ 这个词提示有声音正在发出，后面的事情正在发生。 听！有人在隔壁唱歌。 Listen! Someone is singing in the next room. Look! 看！ 这个词提示有动作正在发生，让你去看。 看！孩子们在操场上跑步。 Look! The children are running on the playground. Be quiet! 安静！ 这个词提示有人正在做某事，需要安静。 安静！宝宝在睡觉。 Be quiet! The baby is sleeping. Don't make noise! 别出声！ 别出声！爸爸在工作。 Don't make noise! Dad is working. Where is...? ……在哪里？ 询问某人的位置时，通常伴随现在进行时，说明那人正在做什么。 汤姆在哪里？他在打篮球。 Where is Tom? He is playing basketball. Can't you see...? 难道你没看见……吗？ 难道你没看见我在忙吗？ Can't you see I am busy? 三、现在进行时的构成 1. 肯定句结构 结构：主语 + be动词 (am/is/are) + 动词-ing + 其他 主语与be动词的搭配： I 用 am He / She / It 用 is You / We / They 用 are 例句： 第一人称单数 I： 我正在写一封信。 I am writing a letter. 我正在等公交车。 I am waiting for the bus. 我正在吃午饭。 I am having lunch. 第三人称单数 He/She/It： 她正在看电视。 She is watching TV. 他正在跑步。 He is running. 外面正在下雨。 It is raining outside. 第二人称/复数 You/We/They： 我们正在等公交车。 We are waiting for the bus. 你们在做什么？ You are doing what? 孩子们正在公园里玩耍。 The children are playing in the park. 2. 否定句结构 结构：主语 + be动词 + not + 动词-ing + 其他 be动词与not的缩写形式： is not = isn't are not = aren't am not 没有缩写形式，口语中常用 I'm not 例句： 第一人称单数 I： 我没有在睡觉。 I am not sleeping. (I'm not sleeping) 我没有在开玩笑。 I am not joking. 我不在等你。 I am not waiting for you. 第三人称单数 He/She/It： 他没在跑步。 He is not running. (He isn't running) 她现在没在做饭。 She is not cooking. (She isn't cooking) 现在没下雨。 It is not raining. (It isn't raining) 第二人称/复数 You/We/They： 我们没在玩游戏。 We are not playing games. (We aren't playing) 你们没在听讲。 You are not listening. (You aren't listening) 他们没在等你。 They are not waiting for you. (They aren't waiting) 3. 一般疑问句结构 结构：Be动词 + 主语 + 动词-ing + 其他？ 肯定回答： Yes, 主语 + be动词. 否定回答： No, 主语 + be动词 + not. 例句： 你在看书吗？ Are you reading a book? Yes, I am. / No, I'm not. 她在做晚饭吗？ Is she cooking dinner? Yes, she is. / No, she isn't. 他们在打篮球吗？ Are they playing basketball? Yes, they are. / No, they aren't. 现在在下雨吗？ Is it raining now? Yes, it is. / No, it isn't. 我们要去公园吗？ Are we going to the park? Yes, we are. / No, we aren't. 4. 特殊疑问句结构 结构：疑问词 + be动词 + 主语 + 动词-ing + 其他？ 常用疑问词：What, Where, Why, Who, How 例句： What 什么： 你在做什么？ What are you doing? 她在读什么？ What is she reading? 他们在看什么？ What are they watching? Where 哪里： 他要去哪里？ Where is he going? 他们在哪里等？ Where are they waiting? Why 为什么： 你为什么在哭？ Why are you crying? 她为什么在笑？ Why is she laughing? Who 谁： 谁在房间里唱歌？ Who is singing in the room? 你在等谁？ Who are you waiting for? How 怎么样： 你今天感觉怎么样？ How are you feeling today? 你的项目进展如何？ How is your project going? 四、动词-ing形式的变化规则 规则一：一般情况下直接加 -ing 绝大多数动词遵循这条规则。 例句： do → doing 做 play → playing 玩 read → reading 读 study → studying 学习 talk → talking 说话 eat → eating 吃 sleep → sleeping 睡觉 walk → walking 走路 jump → jumping 跳 draw → drawing 画画 help → helping 帮助 learn → learning 学习 watch → watching 看 listen → listening 听 work → working 工作 规则二：以不发音的字母e结尾，去掉e再加 -ing 这类动词末尾的e不发音，去掉e后再加ing。 常见动词： make → making 做，制作 write → writing 写 take → taking 拿，带 have → having 有，吃 come → coming 来 dance → dancing 跳舞 ride → riding 骑 drive → driving 开车 use → using 使用 close → closing 关闭 smile → smiling 微笑 live → living 生活 move → moving 移动 become → becoming 变成 leave → leaving 离开 特殊情况： see → seeing 看（这里的e发音，所以不去e） agree → agreeing 同意（这里的e发音，所以不去e） 规则三：重读闭音节结尾，且末尾只有一个辅音字母，双写该辅音字母再加 -ing 什么是重读闭音节？ 单词最后三个字母是：辅音字母 + 元音字母 + 辅音字母 并且这个音节是重读的 一般是单音节词或最后一个音节重读的双音节词 单音节词（都双写）： sit → sitting 坐 run → running 跑 swim → swimming 游泳 get → getting 得到 put → putting 放 let → letting 让 set → setting 设置 hit → hitting 打 cut → cutting 切 dig → digging 挖 beg → begging 乞求 drop → dropping 掉落 stop → stopping 停止 shop → shopping 购物 双音节词（最后一个音节重读时才双写）： begin → beginning 开始 forget → forgetting 忘记 prefer → preferring 更喜欢 admit → admitting 承认 occur → occurring 发生 control → controlling 控制 双音节词（重音在前，不双写）： visit → visiting 参观 open → opening 打开 happen → happening 发生 listen → listening 听 enter → entering 进入 规则四：以ie结尾的动词，变ie为y再加 -ing 这类动词很少，记住常见几个即可。 常见动词： die → dying 死 lie → lying 躺，说谎 tie → tying 系，绑 例句： 那只猫快要死了。 The cat is dying. 他正躺在床上。 He is lying on the bed. 她在系鞋带。 She is tying her shoelaces. 规则五：以c结尾的动词，加king 少数以c结尾的动词，加ing时先加k再加ing。 常见动词： picnic → picnicking 野餐 traffic → trafficking 非法交易 例句： 他们正在公园野餐。 They are picnicking in the park. 五、现在进行时的特殊用法 1. 表示反复发生的动作（带有感情色彩） 与always, forever, constantly, continually等词连用，表示反复发生的动作，带有说话人的感情色彩。 结构：be + always/forever/constantly + doing 例句（表示厌烦）： 他总是迟到！ He is always being late! 这个孩子老是问问题。 The child is constantly asking questions. 你总是忘带钥匙！ You are forever forgetting your keys! 例句（表示赞赏）： 她总是乐于助人。 She is always helping others. 他总是在微笑。 He is always smiling. 例句（表示不满）： 他们总是在吵架。 They are always arguing. 你为什么总是打断我？ Why are you always interrupting me? 2. 表示渐变的动词 有些动词表示逐渐变化的过程，常用进行时。 常见渐变动词： get 变得，become 变成，grow 生长，change 改变，increase 增加，decrease 减少，rise 上升，fall 下降 例句： 天气正在变冷。 It is getting colder. 世界正在发生变化。 The world is changing. 物价在上涨。 Prices are rising. 她在成长。 She is growing up. 英语变得越来越重要。 English is becoming more and more important. 3. 表示状态和感觉的动词通常不用进行时 有些动词表示状态、感觉、情感、拥有等，通常不用进行时，而用一般现在时。 第一类：表示存在和拥有 be 是 exist 存在 belong to 属于 own 拥有 possess 拥有 have 有（当表示“拥有”时） 正确：I have a car. 我有一辆车。 错误：I am having a car. 第二类：表示感觉 see 看见 hear 听见 smell 闻起来 taste 尝起来 feel 感觉（当表示“觉得”时） look 看起来 sound 听起来 正确：This soup tastes good. 这汤味道很好。 错误：This soup is tasting good. 正确：I see a bird. 我看见一只鸟。 错误：I am seeing a bird. 第三类：表示情感 like 喜欢 love 爱 hate 恨 dislike 不喜欢 want 想要 need 需要 prefer 更喜欢 care 在乎 正确：I like music. 我喜欢音乐。 错误：I am liking music. 正确：I need help. 我需要帮助。 错误：I am needing help. 第四类：表示心理状态 know 知道 understand 理解 believe 相信 think 认为（当表示“认为”时） remember 记得 forget 忘记 mean 意思是 doubt 怀疑 正确：I know the answer. 我知道答案。 错误：I am knowing the answer. 正确：I think you are right. 我认为你是对的。 错误：I am thinking you are right. 特殊情况：当这些动词表示动作而非状态时，可以用进行时。 have： 表示“拥有”时是状态，不能用进行时；表示“吃、喝、度过、举行”时是动作，可以用进行时。 正确：I have a book. 我有一本书。（状态，不能用进行时） 正确：I am having dinner. 我正在吃晚饭。（动作，可以用进行时） 正确：We are having a meeting. 我们正在开会。（动作） think： 表示“认为”时是状态，不能用进行时；表示“思考”时是动作，可以用进行时。 正确：I think he is right. 我认为他是对的。（状态） 正确：I am thinking about the problem. 我正在思考这个问题。（动作） see： 表示“看见”时是状态，不能用进行时；表示“看望、观看、约会”时是动作，可以用进行时。 正确：I see a bird. 我看见一只鸟。（状态） 正确：I am seeing the doctor tomorrow. 我明天去看医生。（动作） 正确：They are seeing a movie. 他们在看电影。（动作） 六、现在进行时与一般现在时的详细对比 1. 核心区别 对比点 现在进行时 一般现在时 核心含义 正在进行的动作 习惯性动作、客观事实 动作特点 暂时性 长期性、经常性 时间概念 此时此刻 通常、每天、总是 感情色彩 可带感情色彩 客观陈述 2. 时间状语对比 现在进行时常搭配： now, right now, at the moment, at present, today, these days, Look!, Listen! 一般现在时常搭配： always, usually, often, sometimes, seldom, never, every day, on Sundays, once a week 3. 例句对比 习惯 vs 现在： 我每天喝咖啡。 I drink coffee every day.（习惯） 我正在喝咖啡。 I am drinking coffee now.（现在） 经常 vs 暂时： 他在一家银行工作。 He works in a bank.（长期工作） 这周他在出差。 He is traveling on business this week.（暂时情况） 客观事实 vs 渐变： 冬天很冷。 Winter is cold.（客观事实） 天气正在变冷。 It is getting cold.（渐变过程） 无感情色彩 vs 带感情色彩： 他总是迟到。 He is always late.（一般现在时，客观陈述） 他总是迟到！ He is always being late!（现在进行时，带有厌烦情绪） 第二部分：分层强化练习（题目部分） 一、单项选择 1. Listen! Someone ______ for help. A. cry B. cries C. is crying D. are crying 2. —What ______ you ______ right now? —I ______ a letter. A. do; do; write B. are; doing; am writing C. is; doing; write D. are; doing; writing 3. Look! The children ______ football on the playground. A. play B. plays C. is playing D. are playing 4. She usually ______ at 6:00, but today she ______ late. A. gets up; is sleeping B. get up; sleeps C. is getting up; sleeps D. gets up; sleeps 5. Be quiet! The baby ______. A. sleep B. sleeps C. is sleeping D. are sleeping 6. —______ she ______ dinner now? —Yes, she ______. A. Does; cook; does B. Is; cooking; is C. Is; cook; is D. Does; cooking; does 7. I can't hear you. I ______ to music. A. listen B. am listening C. listens D. listening 8. They ______ TV at the moment. They are doing their homework. A. don't watch B. aren't watching C. isn't watching D. not watch 9. —Where is Tom? —He ______ basketball in the gym. A. plays B. is playing C. play D. playing 10. My mother ______ housework every day, but today she ______ a rest. A. does; is having B. is doing; has C. do; is having D. does; has 11. Look! It ______ outside. Let's stay at home. A. rain B. rains C. is raining D. raining 12. —______ you ______ to the party tonight? —Yes, I am. A. Do; go B. Are; going C. Is; going D. Are; go 13. The teacher ______ with some parents right now. A. talk B. talks C. is talking D. are talking 14. I ______ my homework at the moment. I'll call you later. A. do B. am doing C. does D. doing 15. We can't go out now. It ______ hard. A. rain B. rains C. is raining D. raining 16. —What ______ the children ______? —They're playing games. A. do; do B. are; doing C. is; doing D. do; doing 17. She ______ always ______ her homework on time. That's why the teacher likes her. A. is; doing B. does; do C. /; does D. /; is doing 18. Listen! The birds ______ beautifully. A. sing B. sings C. is singing D. are singing 19. I ______ English every morning, but now I ______ Chinese. A. read; am reading B. am reading; read C. read; read D. am reading; am reading 20. Don't make noise. Grandpa ______. A. sleep B. sleeps C. is sleeping D. are sleeping 二、用所给词的适当形式填空 1. Listen! Someone ________ (knock) at the door. 2. They ________ (play) football on the playground now. 3. She usually ________ (get) up at 6:30, but today she ________ (sleep) late. 4. Look! The cat ________ (chase) a mouse. 5. —What ________ you ________ (do) right now? —I ________ (write) an email. 6. Be quiet! The baby ________ (sleep) in the next room. 7. We ________ (have) an English class at the moment. 8. My mother ________ (cook) dinner in the kitchen now. 9. Listen! The girls ________ (sing) in the music room. 10. I ________ (not watch) TV now. I ________ (do) my homework. 11. ________ she ________ (read) a book right now? 12. The children ________ (run) on the playground. They ________ (play) games. 13. Where ________ he ________ (go)? He ________ (go) to the library. 14. It's 7 o'clock now. We ________ (have) breakfast. 15. ________ they ________ (wait) for the bus at the bus stop? 16. My sister ________ (study) in her room at the moment. 17. Look! The bus ________ (come). 18. I ________ (not feel) well today. I ________ (think) I have a cold. 19. The teacher ________ (talk) to some parents right now. 20. Don't disturb him. He ________ (work) on an important project. 21. The weather ________ (get) colder and colder. 22. She always ________ (help) others. She is so kind. 23. Why ________ you always ________ (interrupt) me? 24. I ________ (see) the doctor tomorrow afternoon. 25. This soup ________ (taste) delicious. Who made it? 26. They ________ (have) a meeting in the conference room now. 27. He ________ (belong) to a famous club. 28. I ________ (think) about the problem. Please wait a moment. 29. The population of the world ________ (increase) very fast. 30. She ________ (begin) to understand the importance of English. 三、句型转换 1. I am reading a book. (改为否定句) I ________ ________ a book. 2. They are playing basketball on the playground. (改为一般疑问句) ________ they ________ basketball on the playground? 3. She is cooking dinner in the kitchen. (对划线部分提问) ________ is she ________ in the kitchen? 4. The children are watching TV now. (对划线部分提问) ________ are the children ________ now? 5. He is waiting for the bus at the bus stop. (改为否定句) He ________ ________ for the bus at the bus stop. 6. We are having an English class. (改为一般疑问句) ________ you ________ an English class? 7. My mother is making a cake in the kitchen. (对划线部分提问) ________ is your mother ________ in the kitchen? 8. They are playing games on the playground. (对划线部分提问) ________ are they ________ games? 9. I am writing an email to my friend. (改为否定句) I ________ ________ an email to my friend. 10. The cat is sleeping on the sofa. (改为一般疑问句) ________ the cat ________ on the sofa? 11. She is reading a newspaper. (对划线部分提问) ________ is she ________? 12. We are waiting for the teacher. (改为否定句) We ________ ________ for the teacher. 13. He is talking on the phone. (改为一般疑问句) ________ he ________ on the phone? 14. The students are having a test in the classroom. (对划线部分提问) ________ are the students ________ a test? 15. I'm watching TV at home. (对划线部分提问) ________ are you ________ TV? 16. They are coming to the party tonight. (改为否定句) They ________ ________ to the party tonight. 17. She is always losing her keys. (改为一般疑问句) ________ she always ________ her keys? 18. He is studying in the library. (对划线部分提问) ________ is he ________? 19. We are having a good time. (改为否定句) We ________ ________ a good time. 20. The train is arriving at 8 o'clock. (对划线部分提问) ________ is the train ________? 四、改错题 1. Listen! The girl sing a song. ________ 应改为 ________ 2. They are play football on the playground now. ________ 应改为 ________ 3. What do you doing right now? ________ 应改为 ________ 4. She is cook dinner in the kitchen. ________ 应改为 ________ 5. The children is running on the playground. ________ 应改为 ________ 6. I am listen to music at the moment. ________ 应改为 ________ 7. He don't watching TV now. ________ 应改为 ________ 8. Look! The bus is come. ________ 应改为 ________ 9. My mother is makeing a cake. ________ 应改为 ________ 10. Are he playing basketball now? ________ 应改为 ________ 11. She is wanting a new dress. ________ 应改为 ________ 12. I am knowing the answer. ________ 应改为 ________ 13. This soup is tasting delicious. ________ 应改为 ________ 14. They are belong to the same club. ________ 应改为 ________ 15. He is always come late. ________ 应改为 ________ 16. What are you do now? ________ 应改为 ________ 17. She doesn't sleeping now. ________ 应改为 ________ 18. The children is playing games. ________ 应改为 ________ 19. I am having a car. ________ 应改为 ________ 20. Listen! Someone cries in the next room. ________ 应改为 ________ 五、根据汉语意思完成句子 1. 听！有人在隔壁唱歌。 Listen! Someone ________ ________ in the next room. 2. 孩子们正在操场上踢足球。 The children ________ ________ football on the playground. 3. 你正在做什么？我在写作业。 What ________ you ________? I ________ ________ my homework. 4. 别说话！老师在讲课。 Don't talk! The teacher ________ ________ a lesson. 5. 看！公交车来了。 Look! The bus ________ ________. 6. 她现在不在看电视，她在做饭。 She ________ ________ TV now. She ________ ________ dinner. 7. 他们正在等谁？他们在等李老师。 Who ________ they ________ for? They ________ ________ for Mr. Li. 8. 外面正在下雨，我们不能出去。 It ________ ________ outside. We can't go out. 9. 你妹妹在做什么？她在弹钢琴。 What ________ your sister ________? She ________ ________ the piano. 10. 我正在给我朋友写一封信。 I ________ ________ a letter to my friend. 11. 天气正在变冷。 The weather ________ ________ colder. 12. 他总是迟到，这让我很生气。 He ________ always ________ late. It makes me angry. 13. 我明天要去看医生。 I ________ ________ the doctor tomorrow. 14. 这汤味道很好。 This soup ________ good. 15. 他们此刻正在开会。 They ________ ________ a meeting at the moment. 16. 你为什么在笑？ Why ________ you ________? 17. 我没在睡觉，我在思考。 I ________ ________. I ________ ________. 18. 她正在学习英语这些天。 She ________ ________ English these days. 19. 火车马上就要到了。 The train ________ ________. 20. 孩子们正在公园里玩耍，他们看起来很开心。 The children ________ ________ in the park. They ________ happy. 📝 第三部分：参考答案与详细解析 一、单项选择答案与解析 1. C Listen! 提示正在发生，someone视为单数，用is crying。 2. B right now提示现在进行时，主语you用are doing，I用am writing。 3. D Look! 提示正在发生，children是复数，用are playing。 4. A usually提示一般现在时，主语she用gets up；today提示现在的情况，用is sleeping。 5. C Be quiet! 提示正在发生，baby是单数，用is sleeping。 6. B now提示现在进行时，疑问句用Is she cooking，肯定回答用Yes, she is。 7. B 前句提示现在的情况，用am listening。 8. B at the moment提示现在进行时，否定用aren't watching。 9. B Where is Tom? 询问位置，答句用现在进行时is playing。 10. A every day提示一般现在时，主语my mother用does；today提示现在的情况，用is having。 11. C Look! 提示正在发生，用is raining。 12. B tonight表示将来，用现在进行时表将来，主语you用Are going。 13. C right now提示现在进行时，teacher是单数，用is talking。 14. B at the moment提示现在进行时，主语I用am doing。 15. C now提示现在进行时，用is raining。 16. B 询问正在做什么，children是复数，用are doing。 17. C always提示一般现在时，主语she用does，表示习惯性动作。 18. D Listen! 提示正在发生，birds是复数，用are singing。 19. A every morning提示一般现在时，主语I用read；now提示现在进行时，用am reading。 20. C Don't make noise提示正在发生，Grandpa是单数，用is sleeping。 二、用所给词的适当形式填空答案与解析 1. is knocking Listen! 提示正在发生，someone视为单数，用is knocking。 2. are playing now提示现在进行时，they是复数，用are playing。 3. gets / is sleeping usually提示一般现在时，she用gets；today提示现在的情况，用is sleeping。 4. is chasing Look! 提示正在发生，cat是单数，用is chasing。 5. are / doing / am writing right now提示现在进行时。 6. is sleeping Be quiet! 提示正在发生，baby是单数，用is sleeping。 7. are having at the moment提示现在进行时，we用are having。 8. is cooking now提示现在进行时，mother是单数，用is cooking。 9. are singing Listen! 提示正在发生，girls是复数，用are singing。 10. am not watching / am doing now提示现在进行时。 11. Is / reading right now提示现在进行时，she是单数。 12. are running / are playing 描述正在发生的动作。 13. is / going / is going 询问正在进行的动作。 14. are having 7点现在正在吃早饭。 15. Are / waiting 询问正在进行的动作。 16. is studying at the moment提示现在进行时。 17. is coming Look! 提示正在发生。 18. am not feeling / think today提示现在的情况，否定用am not feeling；think表示“认为”是状态动词。 19. is talking right now提示现在进行时。 20. is working 前句提示正在发生。 21. is getting 表示渐变过程。 22. helps always提示一般现在时。 23. are / interrupting always与现在进行时连用表示厌烦。 24. am seeing 用现在进行时表示计划好的将来。 25. tastes 状态动词不用进行时。 26. are having now提示现在进行时。 27. belongs 状态动词不用进行时。 28. am thinking 表示“正在思考”，是动作。 29. is increasing 表示正在增长。 30. is beginning 表示“开始”的过程。 三、句型转换答案与解析 1. am not reading 肯定句改否定，在am后加not。 2. Are / playing 肯定句改一般疑问句，将are提至句首。 3. What / doing 对cooking dinner提问，用What is she doing。 4. What / doing 对watching TV提问，用What are the children doing。 5. is not waiting 肯定句改否定，在is后加not。 6. Are / having 肯定句改一般疑问句，将are提至句首。 7. What / doing 对making a cake提问，用What is your mother doing。 8. Where / playing 对on the playground提问，用Where are they playing games。 9. am not writing 肯定句改否定，在am后加not。 10. Is / sleeping 肯定句改一般疑问句，将is提至句首。 11. What / doing 对reading a newspaper提问，用What is she doing。 12. are not waiting 肯定句改否定，在are后加not。 13. Is / talking 肯定句改一般疑问句，将is提至句首。 14. Where / having 对in the classroom提问，用Where are the students having a test。 15. Where / watching 对at home提问，用Where are you watching TV。 16. are not coming 肯定句改否定，在are后加not。 17. Is / losing 肯定句改一般疑问句，将is提至句首。 18. Where / studying 对in the library提问，用Where is he studying。 19. are not having 肯定句改否定，在are后加not。 20. What time / arriving 对at 8 o'clock提问，用What time is the train arriving。 四、改错题答案与解析 1. sing 应改为 is singing Listen! 提示正在发生，用现在进行时。 2. are play 应改为 are playing 现在进行时结构：be + doing。 3. do 应改为 are 现在进行时的疑问句结构：be + 主语 + doing。 4. is cook 应改为 is cooking 现在进行时结构：be + doing。 5. is running 应改为 are running children是复数，be动词用are。 6. am listen 应改为 am listening 现在进行时结构：be + doing。 7. don't 应改为 isn't 现在进行时的否定：be + not + doing。 8. is come 应改为 is coming 现在进行时结构：be + doing。 9. is makeing 应改为 is making make的现在分词是去e加ing。 10. Are 应改为 Is 主语he是第三人称单数，be动词用Is。 11. is wanting 应改为 wants want是状态动词，不用进行时。 12. am knowing 应改为 know know是状态动词，不用进行时。 13. is tasting 应改为 tastes taste是状态动词，不用进行时。 14. are belong 应改为 belong belong是状态动词，不用进行时。 15. is always come 应改为 is always coming 现在进行时结构：be + doing。 16. are / do 应改为 are / doing 现在进行时疑问句结构。 17. doesn't 应改为 isn't 现在进行时的否定：be + not + doing。 18. is playing 应改为 are playing children是复数，be动词用are。 19. am having 应改为 have have表示“拥有”时是状态动词。 20. cries 应改为 is crying Listen! 提示正在发生。 五、根据汉语意思完成句子答案与解析 1. is singing Listen! 提示正在发生。 2. are playing 描述正在发生的动作。 3. are / doing / am doing 现在进行时。 4. is giving 正在讲课。 5. is coming Look! 提示正在发生。 6. isn't watching / is cooking now提示现在进行时。 7. are / waiting / are waiting 询问正在等谁。 8. is raining 描述正在发生的天气。 9. is / doing / is playing 询问正在做什么。 10. am writing 描述正在进行的动作。 11. is getting 表示渐变过程。 12. is / being always与现在进行时连用表示厌烦。 13. am seeing 现在进行时表将来。 14. tastes 状态动词不用进行时。 15. are having at the moment提示现在进行时。 16. are / laughing 询问正在进行的动作。 17. am not sleeping / am thinking 描述正在进行的动作。 18. is studying these days提示当前阶段。 19. is arriving 现在进行时表将来。 20. are playing / look 第一空用现在进行时，第二空look是状态动词。 学科网（北京）股份有限公司 $