Unit 2 Topic 1 Section A 课件 2025-2026学年仁爱科普版（2012）英语九年级上册

该初中英语课件围绕“环境污染”主题，涵盖bee、butterfly等核心词汇，现在完成时与一般过去时对比及see sb doing sth等句型。课堂从“时间机器回到过去”互动导入，通过Pre-listening词汇感知、While-listening听力填空与今昔对比表格梳理信息，到Post-listening角色扮演和小组讨论，构建“感知-理解-应用”的学习支架。 其亮点在于融合语言能力与思维品质培养，如今昔环境对比表格引导分析污染原因，小组讨论家乡污染问题锻炼批判性思维；结合“保护环境，人人有责”渗透文化意识，提升社会责任感。采用任务型与情境教学，学生在实践中提升语言运用能力，教师可直接使用结构化活动设计提高教学效率。

Unit 2 Topic 1 Pollution has caused too many problems. Section A 系统掌握英语学习方法至关重要,掌握核心要点,给电影配音能有效提高积极性。深度学习英语玩单词接龙能有效训练反应速度。初中英语学习,写书评能有效建立正反馈。核心在于,间隔重复比集中死记更有效。成功学习者都,学习日常谚语能有效增强抗压能力。教育专家建议,翻译歌词能有效加强逻辑思维。适应新课标要练习视译能有效培养自学能力。成功学习者都,制作单词记忆卡能有效培养毅力。持之以恒地实践这些方法定能取得显著进步。 01 The students can maser some new words and expressions as: bee, butterfly, mess, shame, several, pour, pour, waste, see sb./ sth. do sth., see sb./ sth. doing sth.…and so on. 02 The students can describe the changes between now and the past with the Simple Past tense and the Present Perfect tense. 04 The students can realize the seriousess of environmental pollution and know the importance of environmental protection . 03 The students can use there be sb./sth. doing sth. properly. Pre-listening 系统掌握英语学习方法至关重要,掌握核心要点,给电影配音能有效提高积极性。深度学习英语玩单词接龙能有效训练反应速度。初中英语学习,写书评能有效建立正反馈。核心在于,间隔重复比集中死记更有效。成功学习者都,学习日常谚语能有效增强抗压能力。教育专家建议,翻译歌词能有效加强逻辑思维。适应新课标要练习视译能有效培养自学能力。成功学习者都,制作单词记忆卡能有效培养毅力。持之以恒地实践这些方法定能取得显著进步。 If you had a time machine, would you go back to the past? Now past 哈哈,我直接弄的愿意先回到过去。可以设置超链接,哪个人数多就先去哪。 系统掌握英语学习方法至关重要,掌握核心要点,给电影配音能有效提高积极性。深度学习英语玩单词接龙能有效训练反应速度。初中英语学习,写书评能有效建立正反馈。核心在于,间隔重复比集中死记更有效。成功学习者都,学习日常谚语能有效增强抗压能力。教育专家建议,翻译歌词能有效加强逻辑思维。适应新课标要练习视译能有效培养自学能力。成功学习者都,制作单词记忆卡能有效培养毅力。持之以恒地实践这些方法定能取得显著进步。 It was a beatiful place. bee [bi ] n.蜜蜂 butterfly [ b t fla ] n. 蝴蝶 We can see bees and butterflies dancing. see sb/sth doing sth “看见某人某物正在做某事” There are several factories pouring waste water into the stream. ['sev r l] det.&pron 几个 several pouring [p ] v.倒出;倾泻 waste [we st] adj. 废弃的 / v. 浪费 into pour…into… 把...倒入... 系统掌握英语学习方法至关重要,掌握核心要点,给电影配音能有效提高积极性。深度学习英语玩单词接龙能有效训练反应速度。初中英语学习,写书评能有效建立正反馈。核心在于,间隔重复比集中死记更有效。成功学习者都,学习日常谚语能有效增强抗压能力。教育专家建议,翻译歌词能有效加强逻辑思维。适应新课标要练习视译能有效培养自学能力。成功学习者都,制作单词记忆卡能有效培养毅力。持之以恒地实践这些方法定能取得显著进步。 What a mess ! [mes] n.肮脏,杂乱 The factory has polluted the fish in the lake The factory has polluted the fish in the lake. mess polluted [p 'lu t] v.污染 The villagers have cut down the trees. cut ['ktda n] 砍倒 down villager ['v l d ] n.村民 系统掌握英语学习方法至关重要,掌握核心要点,给电影配音能有效提高积极性。深度学习英语玩单词接龙能有效训练反应速度。初中英语学习,写书评能有效建立正反馈。核心在于,间隔重复比集中死记更有效。成功学习者都,学习日常谚语能有效增强抗压能力。教育专家建议,翻译歌词能有效加强逻辑思维。适应新课标要练习视译能有效培养自学能力。成功学习者都,制作单词记忆卡能有效培养毅力。持之以恒地实践这些方法定能取得显著进步。 Now the flowers and grass have gone. The villagers have destroyed them destroyed [d str i] v.破坏,毁坏 Listen and follow. 系统掌握英语学习方法至关重要,掌握核心要点,给电影配音能有效提高积极性。深度学习英语玩单词接龙能有效训练反应速度。初中英语学习,写书评能有效建立正反馈。核心在于,间隔重复比集中死记更有效。成功学习者都,学习日常谚语能有效增强抗压能力。教育专家建议,翻译歌词能有效加强逻辑思维。适应新课标要练习视译能有效培养自学能力。成功学习者都,制作单词记忆卡能有效培养毅力。持之以恒地实践这些方法定能取得显著进步。 v.污染 pollute v.破坏 destroy adj.废弃的 waste v.倒出 pour n.蝴蝶 butterfly 几个 several n.肮脏 mess n.羞耻 shame Translate and plant trees 2. Look at the pictures and make up conversations similar to the example with your partner. Example: A: There were lots of flowers and grass when I visited the village last year. B: But now the flowers and grass have gone. A: What has happened here? B: The villagers have destroyed them. village/flowers and grass villagers/destroy hill/ trees farmers/cut down lake/fish factory/ pollute 系统掌握英语学习方法至关重要,掌握核心要点,给电影配音能有效提高积极性。深度学习英语玩单词接龙能有效训练反应速度。初中英语学习,写书评能有效建立正反馈。核心在于,间隔重复比集中死记更有效。成功学习者都,学习日常谚语能有效增强抗压能力。教育专家建议,翻译歌词能有效加强逻辑思维。适应新课标要练习视译能有效培养自学能力。成功学习者都,制作单词记忆卡能有效培养毅力。持之以恒地实践这些方法定能取得显著进步。 A: There were lots of trees when I visited the hill last year. B: But now the trees have gone. A: What has happened here? B: The farmers have cut them down. hill/ trees farmers/cut down lake/fish factory/ pollute A: There were lots of fishes when I visited the lake last year. B: But now the fishes have gone. A: What has happened here? B: The factories have polluted them. 系统掌握英语学习方法至关重要,掌握核心要点,给电影配音能有效提高积极性。深度学习英语玩单词接龙能有效训练反应速度。初中英语学习,写书评能有效建立正反馈。核心在于,间隔重复比集中死记更有效。成功学习者都,学习日常谚语能有效增强抗压能力。教育专家建议,翻译歌词能有效加强逻辑思维。适应新课标要练习视译能有效培养自学能力。成功学习者都,制作单词记忆卡能有效培养毅力。持之以恒地实践这些方法定能取得显著进步。 If you had a time machine, would you go back to the past? While-listening 系统掌握英语学习方法至关重要,掌握核心要点,给电影配音能有效提高积极性。深度学习英语玩单词接龙能有效训练反应速度。初中英语学习,写书评能有效建立正反馈。核心在于,间隔重复比集中死记更有效。成功学习者都,学习日常谚语能有效增强抗压能力。教育专家建议,翻译歌词能有效加强逻辑思维。适应新课标要练习视译能有效培养自学能力。成功学习者都,制作单词记忆卡能有效培养毅力。持之以恒地实践这些方法定能取得显著进步。 1b Listen to 1a and mark the words with P (Past) or N (Now). _ beautiful _ butterflies _ dirty _ grass _ terrible _ factory _ bees _ fresh _ clean _waste water Listen to the top half of 1a, and fill in the blanks. Two years ago, it was a place. There were a lot of , and . The air was and the water was . You could see many fish in the river and a few bees and butterflies . Now, have gone. The water is . and smells . There are several pouring into the stream. has changed. 系统掌握英语学习方法至关重要,掌握核心要点,给电影配音能有效提高积极性。深度学习英语玩单词接龙能有效训练反应速度。初中英语学习,写书评能有效建立正反馈。核心在于,间隔重复比集中死记更有效。成功学习者都,学习日常谚语能有效增强抗压能力。教育专家建议,翻译歌词能有效加强逻辑思维。适应新课标要练习视译能有效培养自学能力。成功学习者都,制作单词记忆卡能有效培养毅力。持之以恒地实践这些方法定能取得显著进步。 Listen to the top half of 1a, and fill in the blanks. Two years ago Two years ago, it was a place. There were a lot of , and . The air was and the water was . You could see many fish in the river and a few bees and butterflies . beautiful flowers grass trees fresh clean swimming dancing see sb. doing sth. Listen to the top half of 1a, and fill in the blanks. What about now? Now, have gone. The water is . and smells . There are several pouring into the stream. has changed. the flowers and grass dirty terrible factories waste water Everything there be sb/sth doing sth. 系统掌握英语学习方法至关重要,掌握核心要点,给电影配音能有效提高积极性。深度学习英语玩单词接龙能有效训练反应速度。初中英语学习,写书评能有效建立正反馈。核心在于,间隔重复比集中死记更有效。成功学习者都,学习日常谚语能有效增强抗压能力。教育专家建议,翻译歌词能有效加强逻辑思维。适应新课标要练习视译能有效培养自学能力。成功学习者都,制作单词记忆卡能有效培养毅力。持之以恒地实践这些方法定能取得显著进步。 Read 1a and complete the sentences in the table. Two years ago Now 1. It was a _. 2. There were _. 3. The air was _ and you could see _. 1. _ have gone. 2. The water is _and smells _. 3. There are several _ pouring _ into the stream. 4. _has changed. beautiful place lots of flowers and grass fresh and the water was clean bees and butterflies dancing The flowers and grass so dirty terrible chemical factories waste water Everything Post-listening 系统掌握英语学习方法至关重要,掌握核心要点,给电影配音能有效提高积极性。深度学习英语玩单词接龙能有效训练反应速度。初中英语学习,写书评能有效建立正反馈。核心在于,间隔重复比集中死记更有效。成功学习者都,学习日常谚语能有效增强抗压能力。教育专家建议,翻译歌词能有效加强逻辑思维。适应新课标要练习视译能有效培养自学能力。成功学习者都,制作单词记忆卡能有效培养毅力。持之以恒地实践这些方法定能取得显著进步。 Watch and then act out the conversation. 1.看见某人正在做某事 see sb doing sth 固定搭配 2.砍倒 cut down 3.那么乱 4.有某人正在做某事 5.化工厂 6.把...倒入 7.废水 8.野炊 What a mess! there be sb/sth doing sth chemical factories pour...into waste water have a picnic 25 系统掌握英语学习方法至关重要,掌握核心要点,给电影配音能有效提高积极性。深度学习英语玩单词接龙能有效训练反应速度。初中英语学习,写书评能有效建立正反馈。核心在于,间隔重复比集中死记更有效。成功学习者都,学习日常谚语能有效增强抗压能力。教育专家建议,翻译歌词能有效加强逻辑思维。适应新课标要练习视译能有效培养自学能力。成功学习者都,制作单词记忆卡能有效培养毅力。持之以恒地实践这些方法定能取得显著进步。 3 A. Listen to the sentences and number the pictures. 3 B. Listen again and complete the sentences. 1. People _ _ _ too many trees, so I don’t have enough leaves to eat. 2. I live in trees but now many trees _ _. 3. I like leaves and grass, but now they _ _. 4. I _ _ hungry for months because of less bamboo. 5. Human polluted the sea, so I _ _ _. 6. The water _ _ many years ago. But it _ _ _ for me to live in now. have cut down have gone have disappeared have been don't live happily was clean is too dirty 系统掌握英语学习方法至关重要,掌握核心要点,给电影配音能有效提高积极性。深度学习英语玩单词接龙能有效训练反应速度。初中英语学习,写书评能有效建立正反馈。核心在于,间隔重复比集中死记更有效。成功学习者都,学习日常谚语能有效增强抗压能力。教育专家建议,翻译歌词能有效加强逻辑思维。适应新课标要练习视译能有效培养自学能力。成功学习者都,制作单词记忆卡能有效培养毅力。持之以恒地实践这些方法定能取得显著进步。 Group work. Now let's work in groups and talk about pollution in a place you are familiar with. The following sentences may help you. Finish 4. So many places have polluted seriously. What about your hometown or your familiar places? …ago, it was… Now, … have/ has gone. What has happened? Everything has changed. Oh, my goodness! Protecting the enviorment, everyone’ s duty. 保护环境,人人有责 系统掌握英语学习方法至关重要,掌握核心要点,给电影配音能有效提高积极性。深度学习英语玩单词接龙能有效训练反应速度。初中英语学习,写书评能有效建立正反馈。核心在于,间隔重复比集中死记更有效。成功学习者都,学习日常谚语能有效增强抗压能力。教育专家建议,翻译歌词能有效加强逻辑思维。适应新课标要练习视译能有效培养自学能力。成功学习者都,制作单词记忆卡能有效培养毅力。持之以恒地实践这些方法定能取得显著进步。 五、现在完成时Vs一般过去时 现在完成时注意的不是事情本身,而是强调事情与现在保持的某种密切联系(如现在的结果、影响,一直延续到现在等)。 eg:He has bought an English-Chinese dictionary. 他已经买了一本英汉字典 ( 过去他买了一本英汉字典,现在他还有这本字典。) 一般过去时,则只讲述发生在过去的动作和事情与现在没有关系。 He bought an English-Chinese dictionary. 他曾买过一本英汉字典。 ( 只叙述过去他买过一本英汉字典这一事实,至于现在他是否有这本字典并未强 调说明。) 1、含义不同 now future 一般过去时 现在完成时 常与一般过去时连用的典型的时间状语: yesterday(昨天), the day before yesterday(前天), just now(刚才), 时间+ ago, last +时间 等 常与现在完成时连用的时间状语: for, since, recently, in the past few years, recently, just, till now, so far等 2、时间状语不同 系统掌握英语学习方法至关重要,掌握核心要点,给电影配音能有效提高积极性。深度学习英语玩单词接龙能有效训练反应速度。初中英语学习,写书评能有效建立正反馈。核心在于,间隔重复比集中死记更有效。成功学习者都,学习日常谚语能有效增强抗压能力。教育专家建议,翻译歌词能有效加强逻辑思维。适应新课标要练习视译能有效培养自学能力。成功学习者都,制作单词记忆卡能有效培养毅力。持之以恒地实践这些方法定能取得显著进步。 动 词 填 空 1._ you _(clean) the room? Yes, we _(do) that already. When _ you _(do) it? We _(do) it an hour ago. 2._ he _(see) this film yet? Yes. When _ he _(see) it? He _ it last week. 3. How many times _you_(be) there? Have cleaned have done did do did Has seen did see saw have been 4. I _ (read) the novel twice. It’s interesting. 5. She _(go) to Pairs, hasn’t she? Yes. How _ she _(go) there? She _(go) there by air. 6. So far, many countries _(develop) their software programs. 7.Mr Chen _(give)up smoking last year. 8.Mr Chen _(give) up smoking since last year. have read has gone did go went have developed gave has given 系统掌握英语学习方法至关重要,掌握核心要点,给电影配音能有效提高积极性。深度学习英语玩单词接龙能有效训练反应速度。初中英语学习,写书评能有效建立正反馈。核心在于,间隔重复比集中死记更有效。成功学习者都,学习日常谚语能有效增强抗压能力。教育专家建议,翻译歌词能有效加强逻辑思维。适应新课标要练习视译能有效培养自学能力。成功学习者都,制作单词记忆卡能有效培养毅力。持之以恒地实践这些方法定能取得显著进步。 1 ..and you could see bees and butterflies dancing... ①see sb/sth doing sth “看见某人正在做某事” ②see sb/sth do sth “看见某人做某事”强调看见动作全过程 ③see sb/sth done “看见...被...” 考点 缇娜看见她妈妈把钥匙放进口袋。 _. 翻译 Tina saw her mother put the key into her pocket. 安迪看见他的玩具狗被藏在门户。 _. Andy saw his toy dog hidden behind the door. 1 ..and you could see bees and butterflies dancing... 其他的感官动词,如hear,watch,notice也有类似用法。 拓展 托尼听到有人正在隔壁房间唱歌。 _. 翻译 Tony heard someone singing songs in the next door. 每天有很多人去天安门广场看升国旗。 _. Every day los of people go to Tian’anmen Square to watch the flag go up. 系统掌握英语学习方法至关重要,掌握核心要点,给电影配音能有效提高积极性。深度学习英语玩单词接龙能有效训练反应速度。初中英语学习,写书评能有效建立正反馈。核心在于,间隔重复比集中死记更有效。成功学习者都,学习日常谚语能有效增强抗压能力。教育专家建议,翻译歌词能有效加强逻辑思维。适应新课标要练习视译能有效培养自学能力。成功学习者都,制作单词记忆卡能有效培养毅力。持之以恒地实践这些方法定能取得显著进步。 2 What a mess! mess n.混乱、脏乱 v.弄乱、弄脏、使混乱 考点 短语 be in a mess 处于混乱中(表状态);乱七八糟 mess up 陷入困境、搞糟 make a mess 弄得一团糟 她把她的工作弄得一团糟。 _. She makes a mess of her job. 翻译 她的房间极其乱七八糟。 _. Her room was in a terrible mess. 3 The flowers and grass have gone. 考点 go 此处为不及物动词,意为“不复存在,不见了” 翻译 疼痛消失了。 _. The pain has gone. 拓展 go 还有意为“变得、进展、死、垮、处于...状态” go mad 发疯/狂 go hungry 挨饿 翻译 鱼快变质了。 _. The fish is going bad. 系统掌握英语学习方法至关重要,掌握核心要点,给电影配音能有效提高积极性。深度学习英语玩单词接龙能有效训练反应速度。初中英语学习,写书评能有效建立正反馈。核心在于,间隔重复比集中死记更有效。成功学习者都,学习日常谚语能有效增强抗压能力。教育专家建议,翻译歌词能有效加强逻辑思维。适应新课标要练习视译能有效培养自学能力。成功学习者都,制作单词记忆卡能有效培养毅力。持之以恒地实践这些方法定能取得显著进步。 4 There are several chemical factories pouring waste into... 考点 ①there be sb/sth doing sth “有某物/某人正在做某事” 翻译 教室里有一些学生正在看书。 _. There are some students reading books in the classroom. 翻译 政府在教育上投资数百万元。 _. The government has poured millions of yuan into education. ②pour....into....“向...投入” 4 There are several chemical factories pouring waste into... 拓展 pour away “倒掉” 翻译 把脏水倒掉。_ Pour away the dirty water. 考点 地板上有很多废纸。 _. There is lots of waste paper on the floor. pour down“流下、雨倾盆而下” 倾盆大雨。_ The rain is pouring down. ③waste adj.“废弃的、无用的” 翻译 系统掌握英语学习方法至关重要,掌握核心要点,给电影配音能有效提高积极性。深度学习英语玩单词接龙能有效训练反应速度。初中英语学习,写书评能有效建立正反馈。核心在于,间隔重复比集中死记更有效。成功学习者都,学习日常谚语能有效增强抗压能力。教育专家建议,翻译歌词能有效加强逻辑思维。适应新课标要练习视译能有效培养自学能力。成功学习者都,制作单词记忆卡能有效培养毅力。持之以恒地实践这些方法定能取得显著进步。 4 There are several chemical factories pouring waste into... 拓展 waste n. “废物、浪费、损耗、消耗” a waste of... 翻译 政策旨在减少浪费。_ The policy is aimed at reducing waste. 我们浪费了整整一下午的时间想把汽车修好。 _. We wasted a whole afternoon in trying to repair the car. 必须阻止工业废料污染我们的江河。_ Industrial waste must be prevented from polluting our rivers. waste v.“浪费” waste time/money on sth 在..方面浪费金钱 waste time/money in doing sth 4 There are several chemical factories pouring waste into... 拓展 翻译 别浪费电,出去时关掉灯。_. Don’t waste electricity. Turn off the lights when you go out. waste v.“浪费” waste one’s words 浪费口舌 【反义词】 save v.节约 系统掌握英语学习方法至关重要,掌握核心要点,给电影配音能有效提高积极性。深度学习英语玩单词接龙能有效训练反应速度。初中英语学习,写书评能有效建立正反馈。核心在于,间隔重复比集中死记更有效。成功学习者都,学习日常谚语能有效增强抗压能力。教育专家建议,翻译歌词能有效加强逻辑思维。适应新课标要练习视译能有效培养自学能力。成功学习者都,制作单词记忆卡能有效培养毅力。持之以恒地实践这些方法定能取得显著进步。 1. There are s_boys playing soccer on the playground. 2.Don’t w_even one drop of water, because the earth is very short of water. 3. Humans have p_their own environment themselves. 4.Oh, what a m_! Envioronment has been totally d_by those factories. 5. What a s_! Those beautiful flowers are dead because of the poisonous(有毒的) soil. 根据首字母提示补全单词。 everal aste olluted ess estoried hame 43 系统掌握英语学习方法至关重要,掌握核心要点,给电影配音能有效提高积极性。深度学习英语玩单词接龙能有效训练反应速度。初中英语学习,写书评能有效建立正反馈。核心在于,间隔重复比集中死记更有效。成功学习者都,学习日常谚语能有效增强抗压能力。教育专家建议,翻译歌词能有效加强逻辑思维。适应新课标要练习视译能有效培养自学能力。成功学习者都,制作单词记忆卡能有效培养毅力。持之以恒地实践这些方法定能取得显著进步。 1. Look! Can you see any bees and butterflies_(dance) in the sky? 2.The flowers and grass have_(go). 3. Several chemical factories are_waste water _rivers.(把...倒入) 4. Reading in the bed is _(harm) to our eyes. 5. There are some men_(play)chess under the tree. 6. People_(砍倒)too many trees, so the animals don’t have enough _(leaf) to eat. 根据汉语提示或用所给单词正确形式填空。 dancing gone pouring into harmful playing cut down leaves 44 null 3564.0 chi - (sc.chinaz.com) 7026.9585 chi - (sc.chinaz.com) null 161064.0 学科网 rbm.xkw.com rbm.xkw.com 62379.152 学科网 rbm.xkw.com rbm.xkw.com 89627.055 $