Unit 7 Section A 2a-2e 课件 2025-2026学年人教版英语七年级下册

Section A 2a-2e Unit7 A Day to Remember What was your special day like? 1.掌握 theatre、zoo、wastewater plant 等场所类词汇，clean、dirty、large、small 等描述性形容词，以及 remove、realize等核心动词；熟记 go/went、see/saw、take/took 等不规则动词的过去式变化，熟练运用 Where did…?/What did…?/How was…? 等特殊疑问句描述过去的活动、地点及感受。 2.能听懂污水净化主题的对话，准确抓取对话中的关键信息并完成信息填空；能规范朗读对话，掌握 was/wasn't、did/didn't 在句中的重读与弱读规则，做到发音标准、语调自然；能分角色完整演绎对话，合理运用肢体语言和情感表达，贴合对话语境；能结合对话内容，用正确的语言逻辑复述污水净化的具体过程。 3,能综合运用所学词汇和句型，围绕 “学校旅行” 展开问答交流，清晰说明旅行的地点、所见所做、内心感受及收获；能模仿对话结构，描述自己的周末或学校旅行经历，做到表达连贯、逻辑清晰；通过对话学习，提炼并梳理事物发展的流程，提升信息整合和语言复述能力。 4.了解污水净化的复杂过程，体会清洁水资源的来之不易，树立节约用水、珍惜水资源的环保意识；学会用有意义的方式度过周末和参与学校集体活动，培养积极的生活态度；在小组对话、角色演绎中，提升合作交流能力，增强英语表达的自信心。 Objectives It’s very important to spend the weekends in a meaningful way. Describe people’s weekends in the pictures. 描 述 周 末 Weekend activities 1.Where did they go? They went to the theatre. 2.What did they do? They saw a movie. Look and say see saw go went /ˈθɪətə(r)/ n.戏院;剧院;电影院 Weekend activities 1.Where did they go? They went to the zoo. 2.What did they do? They took photos of the animals. Look and say take took Weekend activities 1.Where did they go? They went to the farm. 2.What did they do? They fed some sheep. Look and say feed fed Weekend activities 1.Where did they go? They went to the art museum. 2.What did they do? They visited some art exhibitions. Look and say visit visited 发/ɪd/ Weekend activities 1.Where did they go? They went to the supermarket. 2.What did they do? They bought some fruits and snacks. Look and say buy bought /bɔːt/ Weekend activities 1.Where were they ? They were in the street. 2.What did the boy do? He gave directions to the passers-by. Look and say give gave are were Weekend activities 1.Where was the boy? He was in the park. 2.What did the boy do? He played tennis. Look and say play played is was 元音后发/d/ Weekend activities 1.Where were they ? They were in the forest. 2.What did they do? They had a picnic. Look and say have had Weekend activities 1.Where did they go? They went to the wastewater plant. 2.What did they see? Look and say /ˈweɪstwɔːtə(r)/ /plɑːnt/ n.废水 n.工厂 They saw a machine and some screens. /məˈʃiːn/n.机器 A.滤网 B.屏幕 turn dirty water into clean water 把污水变成干净的水 Fu Xing went to a wastewater plant on her school trip. What did they learn there? / trɪp/ n.旅行(短途) Listen to the conversation and fill in the blanks with correct adjectives. 2a Fu Xing: We saw the plant make dirty water ____________ again. Helen: Really? How? Fu Xing: Well, first, ____________ water from our homes goes into the plant. Then, special screens remove large pieces of waste from the water. Helen: What happens next? Fu Xing: Well, _______ machines remove germs and other things from the water. These things are usually too ___________ to see. It takes a few more steps after that before the water becomes clean again. Helen: Wow! I used to think it was ___________ to get clean water. Fu Xing: Me too! I didn’t realize it was so ___________________. Guess the answer adj. adj.(big) adj. adj. adj. adj.(clean) (dirty) (small) (easy) (difficult/hard) / dʒɜːm/ n.微生物;细菌 Listen to the conversation and fill in the blanks with correct adjectives. 2a Helen: Hi, Fu Xing. How was your school trip to the wastewater plant? Was it boring? Fu Xing: No, it wasn't at all. It was really interesting! Helen: Wow! What did you see? Fu Xing: We saw the plant make dirty water ________again. Helen: Really? How? Fu Xing: Well, first,______water from our homes goes into the plant. Then, special screens remove large pieces of waste from the water. Helen: What happens next? Fu Xing: Well, ________ machines remove germs and other things from the water. These things are usually too ________ to see. It takes a few more steps after that before the water becomes clean again. Helen: Wow! I used to think it was _______ to get clean water. Fu Xing: Me too! I didn't realize it was so ________. dirty large small easy hard clean clean dirty large small easy hard Antonyms(反义词) Read the conversation and match the sentence parts. 2b 1.The plant makes 2.Dirty water goes 3.Machines inside the plant 4.Screens inside the plant 5.Helen used to think A.remove small things from the water. B.it was easy to get clean water. C.dirty water clean again. D.remove large pieces of waste from the water. E.into the plant. used to do sth.过去常常做... /rɪˈmuːv/ v.移开;拿走 /piːs/n.片;块 /weɪst/ n.废弃物 v.浪费 1.First, dirty water from our homes goes into the plant. 首先,我们家中的脏水进入工厂。 2.Then, special screens remove large pieces of waste from the water. 然后,特殊的筛网从水中清除大块的废物。 3.Next,Large machines remove germs and other things from the water. 接着,大型机器去除水中的细菌和其他东西。 4.It takes a few more steps after that before the water becomes clean again. 然后在水再次变干净之前,还要再花费 多几步。 1. 沉淀与絮凝（Sedimentation & Flocculation） 向水中加入絮凝剂（比如明矾），让微小的杂质、细菌聚集成大颗粒 “絮状物”。这些絮状物会因为重量慢慢沉到池底，形成污泥，和干净的水分离开。 2. 过滤（Filtration） 让水通过多层过滤材料（比如沙子、活性炭、砾石），进一步去除残留的微小颗粒、颜色和异味。 活性炭还能吸附水中的化学污染物。 3. 消毒（Disinfection） 用氯气、臭氧或紫外线等方式，杀死水中残留的细菌、病毒和微生物，确保水质安全。 这是让水达到饮用或排放标准的最后一道关键防线。 It takes a few more steps... Cherish every drop of water. It takes many steps to make the dirty water clean. Retell the cleaning process First, ...from our homes .... the plant. Then, special screens ... large .....from the water. Next,large ... remove .... from the water. It takes......after that before the water becomes ... again. /ˈprəʊses/ n.过程 Complete the summary of the conversation in 2a. 2c Last week, Fu Xing’s class went on a school trip to a ___________ plant. The plant turned dirty water into clean water. Fu Xing learnt about the cleaning process: First, dirty water goes from people’s ___________ to the plant. Then the plant uses screens to remove large pieces of ________from the dirty water. Next, large __________clean the water. They remove _______and other small things. It takes a few more ________before the water becomes clean again. wastewater homes waste machines germs steps Listen to the conversation again and pay attention to the pronunciation of was, wasn't, did, and didn't. 2d Helen: Hi, Fu Xing. How was your school trip to the wastewater plant? Was it boring? Fu Xing: No, it wasn't at all. It was really interesting! Helen: Wow! What did you see? Fu Xing: We saw the plant make dirty water clean again. Helen: Really? How? Fu Xing: Well, first, dirty water from our homes goes into the plant. Then, special screens remove large pieces of waste from the water. Helen: What happens next? Fu Xing: Well, large machines remove germs and other things from the water. These things are usually too small to see. It takes a few more steps after that before the water becomes clean again. Helen: Wow! I used to think it was easy to get clean water. Fu Xing: Me too! I didn't realize it was so hard. be动词、助动词、情态动词在句子中一般弱读。否定式或在句子末尾时一般要 重读。 Role-play the conversation. 2d Evaluation: Use correct language. (使用正确语言) Speak loudly and clearly with feelings. (言语饱含热情，大声且清晰) With body language. （有肢体语言和感情） Tone,stress and linking. (语调，重读和连读) Talk about a school trip you took to a special place. 2e theatre farm factory forest zoo market museum park What questions can we use? 2.Where did you go ? 3.What did you see/do/learn? 1.How was your school trip ? 4.How did you feel? 5.Did you do anything fun? Talk about a school trip you took to a special place. 2e S1: How was your school trip? S2: It was great/interesting/... S1: Where did you go? S2: I went to a farm/factory/zoo/... S1: What did you see and do? S2: I saw many animals/trees/...and I ... S1: How did you feel? S2: I felt/was tired but happy/excited/... S1: What did you learn? S2: I used to think it was __________ to..., but now I knows it is ____________. /I learned.... Helen: Hi, Fu Xing. How was your school trip to the wastewater plant? Was it boring? Fu Xing: No, it wasn't at all. It was really interesting! Helen: Wow! What did you see? Fu Xing: We saw the plant make dirty water clean again. Helen: Really? How? Fu Xing: Well, first, dirty water from our homes goes into the plant. Then, special screens remove large pieces of waste from the water. Helen: What happens next? Fu Xing: Well, large machines remove germs and other things from the water. These things are usually too small to see. It takes a few more steps after that before the water becomes clean again. Helen: Wow! I used to think it was easy to get clean water. Fu Xing: Me too! I didn't realize it was so hard. go on a trip 去旅行 not...at all 一点也不 make sb./sth.+adj. 使... 进入 become+adj. 变得... It’s adj.+(for sb.)to do sth. 做...是怎么样的 Expressions 1. We saw the plant make dirty water clean again. see sb./sth. do sth. 看见某人/某物做某事 【辨析】see sb./sth. do sth. 与 see sb./sth. doing sth. Language points see sb do sth 看见某人做某事 They saw the old man feed the birds every morning. （他们看到那位老人每天早上都喂鸟。） see sb doing sth 看见某人正在做某事 When I passed by the park, I saw some children playing football. （当我路过公园时，我看到一些孩子正在踢足球。） 强调看到了动作的全过程或动作经常发生 强调看到的动作正在进行 2.Then, special screens remove large pieces of waste from the water. 然后,特殊的隔板除去水中的大块废弃物。 remove sth from sth eg.Please remove the dirty dishes from the table. 请把脏盘子从桌子上拿走。 从某物中拿走某物 (1)remove〔及物动词〕移开;拿走 根据要求完成句子。 1.We should ______ the snow _______ the road after a heavy snowfall. 2.他把书从书架上拿了下来。(翻译句子) remove from He removed the book from the bookshelf. 2.Then, special screens remove large pieces of waste from the water. 然后,特殊的隔板除去水中的大块废弃物。 a piece of意为“一张;一片;一块”,其后可接不可数名词。如果表示的量超过一,要用...pieces of。 eg.She gave me a piece of cake. 她给了我一块蛋糕。 (2)piece〔可数名词〕片;块 注意：a piece of...作主语时,谓语动词用单数形式;..pieces of...作主语时,谓语动词用复数形式。 eg.A piece of useful advice helps me solve the problem easily. Three pieces of bread are in the basket. 2.Then, special screens remove large pieces of waste from the water. 然后,特殊的隔板除去水中的大块废弃物。 1. [名词] 浪费, 可与冠词a连用。 It's a waste to throw good food away.把好好的食物扔掉太浪费了。 2. [形容词]废弃的,无用的 They stop factories from putting waste water into the river. 他们阻止工厂将废水排入河流。 3.[动词]浪费 Don’t waste time. 不要浪费时间。 (3)waste realize v. “认识到；实现”,过去式为realized。 3. I didn’t realize it was so…我没有认识到它是如此…… 1.表示认识到;领会，不用于进行时。其后可接名词,代词或从句作宾语。 I finally realized my mistake. 我终于认识到了自己的错误。 We realized how difficult the task was. 我们认识到这项任务有多难。 2.还可以表示实现（主语一般是人,后面常接dream、goal等名词作宾语） He worked hard and realized his dream of becoming a doctor. 他努力工作，实现了自己成为一名医生的梦想。 turn…into... “把……变成……;使……变为……” eg.Students turned the pottery into different works of art. 学生们把陶土变成了不同的艺术品。 4.The plant turned dirty water into clean water. 加工厂把污水变成干净的水。 5.These things are usually too small to see. too...to...句式的结构形式为“too+形容词或副词+to+动词原形”，通常翻译成“太......而不能......” 表示否定含义。 eg.She's too young to go to school. 她太小了而不能去上学。 Now I'm too busy to talk about it with you. 我现在太忙，没时间和你讨论它。 6.I used to think it was easy to get clean water. 我过去常常认为得到干净的水很容易。 used to 过去常常(做 )表示过去一度存在或经常发生,但现在已经不存在的动作或状态,其后接动词原形。 其中 “used” 是过去式，没有人称和数的变化。used to的否定形式是didn't use to 或used not to (usedn't to)。 eg.He used to smoke. 他过去经常吸烟。（现在不吸了） She used to be so shy and quiet. 她过去害羞、安静。 He didn’t use to wear glasses. = He usedn’t to wear glasses. 他过去不戴眼镜。 一、单项选择 1．The cake is so big. I want to cut it into ________. A．bags B．cups C．pieces D．bowls 2．Playing computer games is a ________ of time and energy. A．step B．waste C．plant D．process 3．I ________ afraid of dogs. But now I like them very much. A．am used to B．used to C．used to be D．use to be 4．Sally fell ill and had to stay in hospital. At that time, she ________ the importance of health. A．realized B．hoped C．created D．removed 5.The book is_______heavy_______ carry with one hand.  A.so； that　　 B.so； to　 C.too； to　 D.too； that C B C A Exercises C 1．My mother _ a book ______the table. 2．He with his friends last weekend. 3．She drive to work, but now she walks. 4．It is magic to paper money. 5．The weather is cold go swimming. 二、用方框中所给短语的适当形式填空 removed from too to went on a trip used to turn into too… to     remove…from      turn..into      used to     go on a trip null 69066.68 null 4545.3154 null 6373.8945 null 4623.683 null 2612.2463 null 3552.6584 null 2220.408 null 4989.399 null 5224.502 null 1776.3258 null 4884.9087 null 2899.5945 null 4702.051 null 4675.928 $