Unit 6 Trees（句型转换情景对话专练）英语新教材沪教版五四制七年级下册

**基本信息** 以“树木”主题为载体，通过基础到提升的情景对话补全训练，系统整合句型转换与语言功能，强化语言运用与环保意识。 **专项设计** |模块|题量/典例|题型特征|知识逻辑| |----|-----------|----------|----------| |基础篇|5个情景对话|情景对话补全，考查表达偏好、询问作用等基础语言功能|围绕树木喜好、重要性等日常话题，语言功能从简单回应到信息询问，形成基础交流逻辑链| |提升篇|5个情景对话|情景对话补全，涉及古树保护、生态关系等深层话题，考查分析后果、总结升华等复杂表达|从日常交流延伸至环保、生态价值，语言功能从具体建议到抽象意义分析，构建“现象-意义-行动”的思维逻辑|

Unit 6 Trees 句型转换情景对话专练 基础篇 情景对话 01 Situation: Tom 和 Lily 在聊最喜欢的树木，分享对树木的喜爱。 Tom: Lily, what’s your favorite type of tree? Lily: 1. ________. (表达偏好) My favorite tree is the maple tree. Its leaves turn red in autumn. Tom: 2. ________! (感叹认同) How beautiful that is! I’ve seen maple leaves in pictures. Lily: Yes! They look like little red stars. Tom: 3. ________? (询问作用) What other benefits do trees have? Lily: 4. ________. (回应作用 + 补充) They can purify the air and provide shade for us. 情景对话 02 Situation: 老师 Miss Wang 和学生 David 在聊树木的重要性，强调护林意义。 Miss Wang: David, have you learned about the importance of trees in science class? David: 1. ________. (肯定回应) Yes! We learned that trees are important for the environment. Miss Wang: 2. ________? (询问认知) Can you tell me one key role of trees? David: They can absorb carbon dioxide and release oxygen. Miss Wang: 3. ________! (表扬 + 补充) That’s exactly right! Trees are like the lungs of the earth. David: What can we do to protect trees? Miss Wang: 4. ________. (给出建议) We can stop cutting down trees and plant more young trees. 情景对话 03 Situation: Amy 和 Emma 在聊校园植树活动，分享参与感受。 Amy: Emma, did you join the tree-planting activity in our school yesterday? Emma: 1. ________. (肯定回应) Yes! It was so meaningful. We planted 50 young trees in the school yard. Amy: 2. ________? (询问细节) How did you plant the trees? Did you need help? Emma: We dug holes first, then put the saplings in and filled the holes with soil. Amy: 3. ________. (表达敬佩) That sounds tiring but rewarding! I wish I had joined. Emma: 4. ________. (发出邀请) Don’t worry! There will be another activity next month. I’ll call you. 情景对话 04 Situation: 家长 Mr. Smith 和孩子 Lucy 在聊家庭小院种树，培养护绿意识。 Mr. Smith: Lucy, our backyard has some empty space. Let’s plant a tree there. Lucy: 1. ________! (感叹支持) That’s a wonderful idea! What kind of tree should we choose? Mr. Smith: We can choose an apple tree. It will bear fruit in a few years. Lucy: 2. ________? (询问养护) How do we take care of the young tree? Mr. Smith: 3. ________. (给出建议) We need to water it regularly and protect it from strong winds. Lucy: 4. ________. (表达期待) I can’t wait! I’ll be responsible for watering it every day. 情景对话 05 Situation: Bob 和 Peter 在聊树木与气候的关系，探讨环保作用。 Bob: Peter, do you know that trees can help fight climate change? Peter: 1. ________. (否定回应) No, I don’t. How can trees do that? Bob: They absorb harmful gases and cool down the air. Peter: 2. ________! (感叹神奇) That’s amazing! Trees are like natural air conditioners. Bob: 3. ________? (延伸提问) What else can trees do for the climate? Peter: 4. ________. (猜测 + 补充) Maybe they can reduce droughts? I heard trees help keep soil moist. 提升篇 情景对话 01 Situation: 老师 Ms. Green 和学生 Cindy 在聊校园古树保护，强调文化价值。 Ms. Green: Cindy, have you noticed the old banyan tree in our school gate? Cindy: 1. ________. (肯定回应) Yes! It’s very big. Many birds build nests in its branches. Ms. Green: 2. ________? (询问历史) Do you know how old that tree is? Cindy: I heard it’s over 100 years old. It’s a witness to the school’s history. Ms. Green: 3. ________! (感叹珍贵) That’s a rare old tree. We must protect it carefully. Cindy: 4. ________. (表达态度) I will tell my classmates not to climb it or pick its leaves. 情景对话 02 Situation: Lisa 和 Sophia 在聊树木与动物的关系，探讨生态价值。 Lisa: Sophia, many animals depend on trees for survival. Do you agree? Sophia: 1. ________. (认同 + 补充) Of course! Birds live in trees and squirrels store food in them. Lisa: What about insects? Do they need trees too? Sophia: 2. ________. (肯定 + 解释) Yes! Many insects eat tree leaves or live under tree bark. Lisa: 3. ________? (询问影响) What will happen if there are no trees? Sophia: 4. ________. (分析后果) Many animals will lose their homes. The ecosystem will be broken. 情景对话 03 Situation: 同学 Jack 和 David 在聊 “节约用纸 = 保护树木”，践行环保行动。 Jack: David, do you know that paper is made from trees? David: 1. ________. (肯定回应) Yes! So using too much paper means cutting more trees. Jack: Exactly! We need to save paper to protect trees. David: 2. ________. (赞同 + 补充) I agree! We can write on both sides of the paper. Jack: 3. ________? (询问其他方法) What other ways can we save paper? David: 4. ________. (给出建议) We can use reusable notebooks and avoid printing unnecessary documents. 情景对话 04 Situation: 兄妹 Lucas 和 Emma 在聊春天植树，计划周末行动。 Lucas: Emma, spring is the best time to plant trees. Let’s plant one in the community park. Emma: 1. ________! (感叹支持) What a great plan! Who will go with us? Lucas: My best friend Tom will join. He has planting tools. Emma: 2. ________? (询问准备) What do we need to prepare for planting? Lucas: 3. ________. (列出准备) We need saplings, shovels, and water buckets. Emma: 4. ________. (表达期待) Perfect! I’ll buy some small labels to mark our tree. 情景对话 05 Situation: 老师 Mr. Brown 和学生 Linda 在聊 “树木的价值”，探讨对人类的意义。 Mr. Brown: Linda, what do you think trees mean to humans? Linda: 1. ________. (观点句) I think trees are our best friends. They give us food, wood and fresh air. Mr. Brown: 2. ________! (表扬 + 追问) That’s a perfect answer. Can you give more examples? Linda: 3. ________. (举例说明) For example, trees can make furniture and paper. They also make our cities beautiful. Mr. Brown: 4. ________. (总结升华) Exactly! Protecting trees is protecting our own living environment. / 学科网（北京）股份有限公司 $ Unit 6 Trees 句型转换情景对话专练 基础篇 情景对话 01 Situation: Tom 和 Lily 在聊最喜欢的树木，分享对树木的喜爱。 Tom: Lily, what’s your favorite type of tree? Lily: 1. ________. (表达偏好) My favorite tree is the maple tree. Its leaves turn red in autumn. Tom: 2. ________! (感叹认同) How beautiful that is! I’ve seen maple leaves in pictures. Lily: Yes! They look like little red stars. Tom: 3. ________? (询问作用) What other benefits do trees have? Lily: 4. ________. (回应作用 + 补充) They can purify the air and provide shade for us. 【答案】 1.I like maple trees best. Their red leaves are so charming in fall 2.What lovely leaves they are! I totally agree with you 3.Do trees have any other useful functions 4.They are very helpful. They also prevent soil erosion and attract birds 【解析】 1.考查偏好表达句，I like...best 与 My favorite... 同义，maple tree（枫树）、turn red（变红）是单元核心词汇，fall 与 autumn 同义替换，贴合季节特征。 2.考查感叹句，What lovely leaves they are/How beautiful that is 是基础感叹句，强化对枫叶的喜爱，语气亲切自然。 3.考查特殊疑问句（询问作用），useful functions（有用的功能）与 benefits 同义，句式简单，无复杂结构，贴合 “了解树木价值” 的主题。 4.考查回应作用句，purify the air（净化空气）、provide shade（提供阴凉）、prevent soil erosion（防止水土流失）是单元核心短语，补充多重作用，逻辑连贯。 情景对话 02 Situation: 老师 Miss Wang 和学生 David 在聊树木的重要性，强调护林意义。 Miss Wang: David, have you learned about the importance of trees in science class? David: 1. ________. (肯定回应) Yes! We learned that trees are important for the environment. Miss Wang: 2. ________? (询问认知) Can you tell me one key role of trees? David: They can absorb carbon dioxide and release oxygen. Miss Wang: 3. ________! (表扬 + 补充) That’s exactly right! Trees are like the lungs of the earth. David: What can we do to protect trees? Miss Wang: 4. ________. (给出建议) We can stop cutting down trees and plant more young trees. 【答案】 1.Yes, I have. The teacher showed us videos about tree protection 2.What do you think is a key function of trees 3.How well you remember! Trees help keep the air clean 4.We can also save paper. Using less paper means protecting more trees 【解析】 1.考查一般疑问句肯定回答，补充 “观看护林视频” 的细节，符合七年级对回答完整性的要求，无复杂语法。 2.考查特殊疑问句（询问认知），key function（关键作用）是核心短语，句式简单，推动对话探讨树木的具体价值。 3.考查表扬 + 补充句，How well you remember 是基础感叹句，the lungs of the earth（地球之肺）是生动比喻，简单解释树木净化空气的作用，易懂易记。 4.考查建议句，stop cutting down（停止砍伐）、plant young trees（种植幼树）、save paper（节约纸张）是核心短语，建议具体可行，贴合日常护林行动。 情景对话 03 Situation: Amy 和 Emma 在聊校园植树活动，分享参与感受。 Amy: Emma, did you join the tree-planting activity in our school yesterday? Emma: 1. ________. (肯定回应) Yes! It was so meaningful. We planted 50 young trees in the school yard. Amy: 2. ________? (询问细节) How did you plant the trees? Did you need help? Emma: We dug holes first, then put the saplings in and filled the holes with soil. Amy: 3. ________. (表达敬佩) That sounds tiring but rewarding! I wish I had joined. Emma: 4. ________. (发出邀请) Don’t worry! There will be another activity next month. I’ll call you. 【答案】 1.Yes, I did. I worked with my classmates. We had a great time 2.What steps did you follow to plant the trees 3.How hard you worked! Planting trees is good for our school 4.You can join us next time. We need more people to help with watering 【解析】 1.考查一般疑问句肯定回答，worked with classmates（和同学合作）、had a great time（玩得开心）补充活动细节，符合参与场景的情感表达，无复杂结构。 2.考查特殊疑问句（询问细节），follow steps（遵循步骤）是核心短语，句式简单，推动对话了解植树流程。 3.考查表达敬佩句，tiring but rewarding（累但有意义）是常用表达，体现对植树行动的认可，语气真诚。 4.考查发出邀请句，call you（打电话给你）、help with watering（帮忙浇水）补充后续活动细节，邀请自然，贴合校园场景。 情景对话 04 Situation: 家长 Mr. Smith 和孩子 Lucy 在聊家庭小院种树，培养护绿意识。 Mr. Smith: Lucy, our backyard has some empty space. Let’s plant a tree there. Lucy: 1. ________! (感叹支持) That’s a wonderful idea! What kind of tree should we choose? Mr. Smith: We can choose an apple tree. It will bear fruit in a few years. Lucy: 2. ________? (询问养护) How do we take care of the young tree? Mr. Smith: 3. ________. (给出建议) We need to water it regularly and protect it from strong winds. Lucy: 4. ________. (表达期待) I can’t wait! I’ll be responsible for watering it every day. 【答案】 1.How exciting! I’ve always wanted to have a fruit tree at home 2.What should we do to keep the young tree healthy 3.It’s not difficult. We also need to remove weeds around it 4.I promise to take good care of it. I want to taste our own apples 【解析】 1.考查感叹 + 支持句，How exciting 是基础感叹句，have a fruit tree（拥有果树）贴合家庭场景，体现期待之情，语气积极。 2.考查特殊疑问句（询问养护），take care of（照顾）、keep...healthy（保持…… 健康）是核心短语，句式简单，符合七年级语法要求。 3.考查建议句，water regularly（定期浇水）、protect from strong winds（防大风）、remove weeds（除草）是具体养护措施，实用易懂。 4.考查表达期待句，be responsible for（对…… 负责）、taste our own apples（品尝自己种的苹果）呼应前文，体现护绿的主动性，情感真挚。 情景对话 05 Situation: Bob 和 Peter 在聊树木与气候的关系，探讨环保作用。 Bob: Peter, do you know that trees can help fight climate change? Peter: 1. ________. (否定回应) No, I don’t. How can trees do that? Bob: They absorb harmful gases and cool down the air. Peter: 2. ________! (感叹神奇) That’s amazing! Trees are like natural air conditioners. Bob: 3. ________? (延伸提问) What else can trees do for the climate? Peter: 4. ________. (猜测 + 补充) Maybe they can reduce droughts? I heard trees help keep soil moist. 【答案】 1.I’ve never thought about that. Can you explain it to me 2.How useful trees are! I’m surprised by their power 3.Are there any other ways trees help the climate 4.Yes! They can also prevent sandstorms. Moist soil holds more water 【解析】 1.考查否定回应句，I’ve never thought about that（我从未想过）体现好奇，ask for explanation（请求解释）推动对话深入，无复杂结构。 2.考查感叹句，How useful trees are 是基础感叹句，natural air conditioners（天然空调）是生动比喻，强化对树木作用的惊叹。 3.考查特殊疑问句（延伸提问），other ways（其他方式）是核心短语，句式简单，符合七年级思维拓展需求。 4.考查猜测 + 补充句，reduce droughts（减少干旱）、keep soil moist（保持土壤湿润）、prevent sandstorms（防止沙尘暴）是单元核心短语，补充气候调节作用，逻辑清晰。 提升篇 情景对话 01 Situation: 老师 Ms. Green 和学生 Cindy 在聊校园古树保护，强调文化价值。 Ms. Green: Cindy, have you noticed the old banyan tree in our school gate? Cindy: 1. ________. (肯定回应) Yes! It’s very big. Many birds build nests in its branches. Ms. Green: 2. ________? (询问历史) Do you know how old that tree is? Cindy: I heard it’s over 100 years old. It’s a witness to the school’s history. Ms. Green: 3. ________! (感叹珍贵) That’s a rare old tree. We must protect it carefully. Cindy: 4. ________. (表达态度) I will tell my classmates not to climb it or pick its leaves. 【答案】 1.Yes, I have. It provides a cool place for us to rest in summer 2.What’s the age of that ancient banyan tree 3.How precious the old tree is! It’s a living relic of our school 4.We can also put up a sign to remind everyone to protect it 【解析】 1.考查一般疑问句肯定回答，build nests（筑巢）、provide a cool place（提供阴凉处）补充古树的作用，符合校园场景，无复杂语法。 2.考查特殊疑问句（询问历史），ancient banyan tree（古榕树）、age（年龄）是核心词汇，句式简单，推动对话关注树木的文化价值。 3.考查感叹句（表达珍贵），How precious... 是基础感叹句，living relic（活化石）强调古树的独特意义，强化保护意识。 4.考查表达态度句，put up a sign（张贴标语）、remind everyone（提醒大家）是具体保护行动，体现主动护绿的意识，主题鲜明。 情景对话 02 Situation: Lisa 和 Sophia 在聊树木与动物的关系，探讨生态价值。 Lisa: Sophia, many animals depend on trees for survival. Do you agree? Sophia: 1. ________. (认同 + 补充) Of course! Birds live in trees and squirrels store food in them. Lisa: What about insects? Do they need trees too? Sophia: 2. ________. (肯定 + 解释) Yes! Many insects eat tree leaves or live under tree bark. Lisa: 3. ________? (询问影响) What will happen if there are no trees? Sophia: 4. ________. (分析后果) Many animals will lose their homes. The ecosystem will be broken. 【答案】 1.I totally agree. Trees are homes for lots of wild animals 2.They certainly do. Some insects even help trees pollinate 3.How will the loss of trees affect animals and nature 4.It will be terrible. Many animals may die or move to other places 【解析】 1.考查认同 + 补充句，depend on（依赖）、homes for animals（动物的家园）是核心短语，贴合 “树木与动物” 的主题，情感真挚。 2.考查肯定 + 解释句，tree bark（树皮）、help pollinate（帮助传粉）是单元核心词汇，简单说明昆虫与树木的共生关系，易懂。 3.考查特殊疑问句（询问影响），loss of trees（树木减少）、affect（影响）是核心短语，句式简单，推动对话探讨生态后果。 4.考查分析后果句，lose their homes（失去家园）、ecosystem broken（生态系统破坏）是核心表达，强调树木对生态的重要性，主题升华。 情景对话 03 Situation: 同学 Jack 和 David 在聊 “节约用纸 = 保护树木”，践行环保行动。 Jack: David, do you know that paper is made from trees? David: 1. ________. (肯定回应) Yes! So using too much paper means cutting more trees. Jack: Exactly! We need to save paper to protect trees. David: 2. ________. (赞同 + 补充) I agree! We can write on both sides of the paper. Jack: 3. ________? (询问其他方法) What other ways can we save paper? David: 4. ________. (给出建议) We can use reusable notebooks and avoid printing unnecessary documents. 【答案】 1.Yes, I do. My dad told me that tons of trees are cut for paper every year 2.That’s a good point. Saving paper is a simple way to protect trees 3.Are there any other practical ways to save paper 4.We can also recycle waste paper. Many paper products can be reused 【解析】 1.考查一般疑问句肯定回答，tons of trees（大量树木）、cut for paper（为造纸而砍伐）补充背景信息，强化节约用纸的必要性，无复杂结构。 2.考查赞同 + 补充句，write on both sides（双面书写）是具体节约行为，simple way（简单方式）体现环保行动的可行性，贴合学生生活。 3.考查特殊疑问句（询问其他方法），practical ways（实用方法）是核心短语，句式简单，符合七年级表达要求。 4.考查建议句，reusable notebooks（可重复使用笔记本）、recycle waste paper（回收废纸）是核心短语，建议具体，贴合日常环保场景。 情景对话 04 Situation: 兄妹 Lucas 和 Emma 在聊春天植树，计划周末行动。 Lucas: Emma, spring is the best time to plant trees. Let’s plant one in the community park. Emma: 1. ________! (感叹支持) What a great plan! Who will go with us? Lucas: My best friend Tom will join. He has planting tools. Emma: 2. ________? (询问准备) What do we need to prepare for planting? Lucas: 3. ________. (列出准备) We need saplings, shovels, and water buckets. Emma: 4. ________. (表达期待) Perfect! I’ll buy some small labels to mark our tree. 【答案】 1.How exciting! I love planting trees. It’s both fun and meaningful 2.What tools and materials do we need 3.Saplings are the most important. Shovels help dig holes and buckets for watering 4.I can’t wait for the weekend. I want to watch our tree grow up 【解析】 1.考查感叹 + 支持句，How exciting 是基础感叹句，fun and meaningful（有趣又有意义）体现对植树的喜爱，贴合春天植树的场景。 2.考查特殊疑问句（询问准备），tools and materials（工具和材料）是核心短语，句式简单，推动对话落实行动细节。 3.考查列出准备句，shovels（铲子）、water buckets（水桶）是植树常用工具，简单说明用途，符合七年级认知水平。 4.考查表达期待句，mark our tree（给我们的树做标记）、watch it grow up（看着它长大）体现对树木的珍视，情感积极，逻辑连贯。 情景对话 05 Situation: 老师 Mr. Brown 和学生 Linda 在聊 “树木的价值”，探讨对人类的意义。 Mr. Brown: Linda, what do you think trees mean to humans? Linda: 1. ________. (观点句) I think trees are our best friends. They give us food, wood and fresh air. Mr. Brown: 2. ________! (表扬 + 追问) That’s a perfect answer. Can you give more examples? Linda: 3. ________. (举例说明) For example, trees can make furniture and paper. They also make our cities beautiful. Mr. Brown: 4. ________. (总结升华) Exactly! Protecting trees is protecting our own living environment. 【答案】 1.In my opinion, trees are essential to humans. We can’t live without them 2.How well you understand! You’ve listed many important values of trees 3.Trees also help reduce noise pollution. Green spaces make people happier 4.You’re totally correct. Trees connect nature and humans closely 【解析】 1.考查观点句，In my opinion 是基础观点表达，essential（必不可少的）、give us food and fresh air（提供食物和新鲜空气）是核心短语，直接点明树木对人类的意义。 2.考查表扬 + 追问句，How well you understand 是基础感叹句，listed many important values（列出许多重要价值）肯定学生的回答，追问例子使观点更具体。 3.考查举例说明句，make furniture（制作家具）、reduce noise pollution（减少噪音污染）、green spaces（绿地）是贴近生活的例子，简单说明树木的多重价值，无复杂表达。 4.考查总结升华句，connect nature and humans（连接自然与人类）是核心短语，总结 “保护树木就是保护生存环境”，主题鲜明，升华立意。 / 学科网（北京）股份有限公司 $