Unit 3 Section Ⅲ Grammar and composition（课件PPT）-【步步高】2024-2025学年高中英语选修第一册学习笔记（译林版）

该高中英语课件聚焦虚拟语气中的非真实条件句，通过“语境感悟”模块以伦敦交换生适应问题的建议信为语篇载体，引导学生画出并分析文中虚拟条件句，搭建从真实语境感知到语法结构识别的学习支架，帮助学生衔接已有语言知识。 其亮点在于以核心素养为导向，融合语言能力、思维品质与文化意识。语境感悟提升学生特定情境下的语言理解与表达能力，语法精讲用表格系统归纳不同时间虚拟结构及例句，培养逻辑思维，达标检测补全环保短文增强社会责任感。采用“感知-归纳-应用”教学法，学生能在语境中掌握语法并灵活运用，教师可借清晰结构与多样练习提升教学效率。

Section Ⅲ On the move Unit 3 Grammar and composition—Subjunctive mood (Ⅰ)：unreal conditionals 阅读下面的短文，画出文中的虚拟条件句，并分析。 Learning you are having trouble getting used to your new school life in London，I’d like to offer my suggestions to you. Firstly，if I were you，I would take part in some school associations where you can make some friends and know about their school life.If you had some friends there，you would not be so upset now.Another suggestion is that you should study hard.Should you get high marks，you would be more confident，which will help you adapt to the new environment soon. 语境感悟 What’s more，keep up high spirits and be optimistic.After all，if you had not gone to London as an exchange student，you would have lost the chance to broaden your horizons and improve yourself. I hope my advice will be useful to you.I’m looking forward to your good news. 答案　 1....if I were you，I would take part in some school associations... 2.If you had some friends there，you would not be so upset now. 3.Should you get high marks，you would be more confident... 4....if you had not gone to London as an exchange student，you would have lost the chance to broaden your horizons and improve yourself. 分析：表示与过去事实相反的是句4。 表示与现在事实相反的是句1和句2。 表示与将来事实相反的是句3。 语法精讲 在英语中，表示不能实现的愿望或与事实相反的情况时，常用虚拟语气。虚拟语气常见于含有条件状语从句的句子中。 一、虚拟条件句的常规用法表 类别 从句谓语动词 主句谓语动词 例句 与现在 事实相反 过去时(be用were) should/would/could/might＋动词原形 If you spent more time exercising，you would be more energetic. 如果你花更多的时间锻炼，你会更加精力充沛。 类别 从句谓语动词 主句谓语动词 例句 与过去 事实相反 had＋过去分词 should/would/could/might＋have＋过去分词 If you had come one minute earlier，you would have caught the bus. 如果你早来一分钟，你就赶上公交车了。 类别 从句谓语动词 主句谓语动词 例句 与将来 事实相反 过去时(be用were) should/would/ could/might＋动词原形 If I had time tomorrow，I would accompany you to the party. 如果明天我有时间，我会陪你去参加聚会。 should＋动词原形 If he shouldn’t come tomorrow，we would put off the meeting. 如果他明天不来，我们就推迟这个会议。 类别 从句谓语动词 主句谓语动词 例句 与将来 事实相反 were to＋动词原形 should/would/could/might＋动词原形 If he were to arrive late，people would complain about it.如果他来晚了，人们会抱怨的。 二、虚拟条件句的特殊用法 1.如果条件状语从句和主句的时间不一致，要根据具体情况使用动词的适当形式。如： If you had followed my advice，you would be better now. 如果你听了我的建议，你现在就好一些了。(从句与过去事实相反，主句与现在事实相反) 2.条件状语从句含有were，had或should 时，可以将它们置于句首，省略连接词if。如： (1)Were you to take the train(If you were to take the train)，you would get there sooner.如果你坐火车的话，你就会早点到达那里。 (2)Had you informed me earlier(If you had informed me earlier)，I would not have signed the contract. 如果你早点告诉我，我就不会签那个合同了。 (3)Should you make a mistake(If you should make a mistake)，you would have to do the experiment again. 如果你犯了错误，你就必须再做一次实验。 Ⅰ.单句语法填空 1.If it (rain) tomorrow，the sports meeting would be put off. 2.If you (follow) my advice，you would have found a solution to the dilemma. 3.If I (be) you，I (buy) that house immediately. 达标检测 rained/should rain/were to rain had followed were would buy 4.If I hadn’t been faced with so many barriers，I (not be) where I am. 5.If the new safety system (put) to use，the accident would never have happened. wouldn’t be had been put Ⅱ.完成句子 1.要是我没有错过那班渡船，我们就能提前到那里了。 If that ferry，we ahead of time. 2.如果我没读英文报Youth，我在英语方面就不会有这么大的进步。 If the newspaper Youth，I ________________________ in English. I hadn’t missed would have got there I hadn’t read wouldn’t have made such great progress 3.我常常想，如果每个人在成年初期的某个时候都能失聪和失明几天，那将是一件幸事。 I have often thought if each human being ______ for a few days at some time during his early adult life. 4.如果我们没有生产这种产品，我们的工厂现在就不会关闭。 If we the product，our factory ______________ now. it would be a blessing were stricken blind and deaf hadn’t manufactured would not be closed Ⅲ.补全下面的短文 Human activity has affected the natural and ecological balance，badly harming the environment.For example，1.________________________ (如果人类没有非法猎杀野生动物，一些稀有动物就不会灭绝).2.____________ _______________________________________________________________ (如果海洋和河流没有受到如此严重的污染，其中的许多生物就不会被杀死).3.___________________________________________________ (如果没有那么多的私家车和小工厂，我们就会呼吸到新鲜空气).All of these facts will do harm to humans at last. if humans had not hunted wild animals illegally，some rare animals would not have died out If oceans and rivers were not so seriously polluted，many creatures in them would not be killed If there were not so many private cars and small factories， we would breathe fresh air Fortunately，more and more people are aware of this and doing their best to prevent the situation from getting worse.4.____________________ ______________________________________________________________ (如果我们大家共同努力，我们的环境就会变得越来越美好). Should all of us make joint efforts，our environment would become more and more beautiful 本课结束 $