Unit3-Tress and us- Grammar-培优练2025-2026学年沪教版七年级英语下册

Unit3 Trees and us ⭐Grammar培优练 一、语法核心速记 （一）现在进行时（The present continuous）核心用法表 核心概念 具体规则 沈阳中考易错点 例句（贴合教材） 基本结构 am / is / are + verb-ing be 动词不能漏，动词变形要准确 1. I am staying with my grandmother. 2. Su Su and I are working on our group project. 动词 - ing 变形规则 1. 一般动词：直接加 **-ing**（eat→eating） 2. 去 e 加 **-ing**（write→writing） 3. ie 变 y 加 **-ing**（tie→tying） 4. 重读闭音节（辅 + 元 + 辅）：双写尾字母加 **-ing**（run→running） 1. 去 e 规则：love→loving（不是 loveing） 2. 双写规则：swim→swimming（不是 swiming） 3. ie 变 y：lie→lying（不是 lieing） 1. feel→feeling 2. write→writing 3. run→running 否定形式 am / is / are + not + verb-ing be 动词直接加 not，无需加 don't/doesn't I am not reading a book now. 疑问形式 Am / Is / Are + 主语 + verb-ing? 回答：Yes, 主语 + am/is/are. No, 主语 + am/is/are + not. 句首用 be 动词，不用助动词 do/does —Are you watching TV? —Yes, I am. 时间标志词 now, at the moment, look!, listen! 看到这些词，90% 考现在进行时 Look! They are watering the trees. （二）状态动词（Stative verbs）专项表 动词类别 常见动词（必背） 用法规则 错误示例 vs 正确示例 情感 / 喜好 like, love, hate, prefer, want 不用于进行时，用一般现在时 ❌ I am liking apples. ✅ I like apples. 感官 / 认知 see, hear, know, understand, believe 不用于进行时（表 “知道 / 看见”） ❌ He is knowing me. ✅ He knows me. 存在 / 拥有 have（表拥有）, belong to 不用于进行时 ❌ She is having a pen. ✅ She has a pen. 心理 / 状态 realize, think（表认为）, want 不用于进行时 ❌ I am wanting a car. ✅ I want a car. 二、分层培优训练 基础达标练（课本同步，夯实基础） Ⅰ. 用所给动词的现在进行时形式填空（考查动词变形） 1. Look! The children _______ (play) football on the playground. 2. Listen! A bird _______ (sing) in the tree. 3. My mother _______ (cook) dinner in the kitchen now. 4. He _______ (lie) on the sofa at the moment. 5. The students _______ (run) in the hallway. (注意双写) 6. I _______ (write) a letter to my pen pal. (注意去 e) Ⅱ. 选用 am /is/are 填空 1. Su Su and I _______ working on our group project. 2. The dog _______ sleeping under the chair. 3. I _______ watching a TV programme about trees. 4. Your parents _______ staying with your grandmother? Ⅲ. 选词填空（状态动词 vs 进行时） (like / am liking / know / am knowing / look / am looking) 1. I _______ my pet dog very much. 2. _______! That is a beautiful butterfly. 3. He _______ the answer to the question. 4. She _______ at the picture of the tree now. 能力提升练 Ⅰ. 单项选择 1. —What is your father doing? —He _______ tea in the living room. A. drinks B. is drinking C. drinking D. drink 2. Look! The birds _______ in the sky. A. fly B. are flying C. is flying D. flies 3. —_______ you _______ music now? —Yes, I am. A. Do; listen B. Are; listening C. Do; listening D. Are; listen 4. I _______ my homework now. Please wait for a minute. A. finish B. am finishing C. finished D. finishing 5. Which sentence is RIGHT? A. She is having a new bike. B. I am understanding this lesson. C. They are watering the trees. D. He is wanting some water. 6. —What is that noise? —Oh, sorry. I _______ the radio. A. turn on B. am turning on C. turns on D. turned on Ⅱ. 短文填空（语法填空改编） Chen Li is making a video about trees. Let's help her complete it with the correct verb forms. It's not easy to be a tree. Right now, insects (1) _______ (attack) my bark! Ouch! I (2) _______ (feel) pain! But trees like me have clever ways of fighting back. We pine trees (3) _______ (produce) a glue-like liquid, and use it to catch our enemies. Look at this small insect. It (4) _______ (move) really carefully on that pine's trunk. But bad luck! The sticky liquid catches it. Now it (5) _______ (wait) to become a lucky bird's big meal. We trees don't have eyes, but we can still sense things. Some of us can even recognize different kinds of bugs! Look at this one, for example: it (6) _______ (eat) a leaf. Don't worry! The tree (7) _______ (give) off a smell. It uses the smell to call for help. See? Now a ladybug (8) _______ (come) for the first time. It quickly catches the little bug. Now the ladybug (9) _______ (enjoy) its free lunch. 培优冲刺练（沈阳中考压轴，拓展提升） Ⅰ. 句型转换（沈阳中考必考题型） 1. They are cleaning the classroom.（改为否定句） They _______ _______ the classroom. 2. She is reading a book under the tree.（对划线部分提问） _______ _______ she reading a book? 3. He is watching TV now.（改为一般疑问句并作肯定回答） —_______ he _______ TV now? —Yes, _______ _______. 4. The boys are running in the park.（改为单数句） _______ _______ running in the park. 5. My sister is eating an apple.（对划线部分提问） _______ _______ your sister doing? Ⅱ. 改错（找出句子中唯一的错误并改正） 1. Look! The boy is runing on the grass. ( ) → ( ) 2. I am knowing that boy very well. ( ) → ( ) 3. She is have a piano lesson now. ( ) → ( ) 4. They aren't climb the tree now. ( ) → ( ) 5. How many apples is he picking? ( ) → ( ) 参考答案与解析 基础达标练 Ⅰ. 动词填空 1. are playing（children 是复数，be 动词用 are） 2. is singing（a bird 是单数，be 动词用 is） 3. is cooking（now 是现在进行时标志） 4. is lying（lie 变 ying） 5. are running（run 双写 n 加 ing） 6. am writing（write 去 e 加 ing） Ⅱ. be 动词填空 1. are（Su Su and I 是复数） 2. is（the dog 是单数） 3. am（I 搭配 am） 4. Are（疑问句，主语 parents 是复数） Ⅲ. 状态动词填空 1. like（like 是状态动词，用一般现在时） 2. Look（祈使句，引起注意） 3. knows（know 是状态动词，不用进行时） 4. is looking（look 表 “看” 的动作，用进行时） 能力提升练 Ⅰ. 单项选择 1. B 解析：问句问 “正在做什么”，答语用现在进行时 is drinking。 2. B 解析：Look! 是标志词，birds 是复数，用 are flying。 3. B 解析：现在进行时一般疑问句结构：Am/Is/Are + 主语 + doing？ 4. B 解析：now 是标志词，用 am finishing。 5. C 解析：A 是 have（拥有）不用进行时；B 是 understand 不用；D 是 want 不用；C 是正确的正在浇水。 6. B 解析：解释噪音来源，用正在进行时 am turning on。 Ⅱ. 短文填空 1. are attacking（now 是标志词，insects 复数） 2. am feeling（feel 作 “感觉” 讲，有时可用于进行时，表此刻的感觉） 3. produce（pine trees 是复数，表客观事实用一般现在时，不是进行时） 4. is moving（Look at 引导，强调正在进行） 5. is waiting（now 语境） 6. is eating（Look at 引导） 7. is giving（语境：树正在释放气味） 8. is coming（Now 引导） 9. is enjoying（语境：正在享受午餐） 培优冲刺练 Ⅰ. 句型转换 1. aren't cleaning（are not 的缩写） 2. Where is（对地点提问用 Where） 3. Is; watching; he is（一般疑问句 Is 提前，肯定回答用 he is） 4. The boy is（They 变 The boy，are 变 is） 5. What is（对动作提问用 What） Ⅱ. 改错 1. runing → running（重读闭音节双写 n） 2. am knowing → know（状态动词不用进行时） 3. is have → is having（have 表 “上（课）” 时，有时可用于进行时，结构是 be having） 4. climb → climbing（否定进行时结构：be + not + doing） 5. is → are（apples 是复数，be 动词用 are） 学科网（北京）股份有限公司 $