Unit 5 Understanding ideas—Grammar课件 2026-2027学年外研版九年级英语上册

该初中英语课件聚焦关系代词that和which引导的定语从句，通过环保主题填空题导入，回顾自然与人类关系的旧知，搭建“例句分析—规则总结—情境应用”的学习支架，衔接语法知识与生态保护主题。 其亮点在于主题式语法教学，结合“Save the oceans”网页填空、漫画讨论等任务，将语法应用与海洋保护意识培养融合，提升语言能力与文化意识。分层作业设计兼顾基础与拓展，助力学生巩固语法并增强环保责任感，教师可高效开展情境化教学。

Unit 5 A fine balance Understanding ideas Grammar Learning Objectives By the end of the class, we will be able to: 1. master the usage rules and distinctions of relative pronouns that and which via sentence-finding and rule-learning activities, improve their grammar application ability, and enhance awareness of ecological protection in thematic language practice. 2. practice and master the correct usage of relative pronouns that and which through tasks, improve grammar application ability in context, and cultivate awareness of ocean protection and sense of environmental responsibility in the process of thematic language practice. 3. master target phrases and consolidate the phrases and relevant grammar, enhance language application competence in thematic contexts In a world without humans, cars, boats and planes would 1. _________ from our roads, rivers and the sky. Animals soon 2. _________ in number because traffic noise 3. _________ greatly. Trees grow freely without the danger of being 4. _________, and forests 5.________ the space that humans now live in. The 6. _______________ that have been hidden by 7._________ appear again. Humans have left many marks on the earth, but we must learn to 8.______________ nature better. We need to think about our relationship with 9. _________. Let us 10. _________ nature to have her way. disappear increase drops cut down pollution natural wonders get along with nature permit Review take back 先行词 事物 定语从句 关系代词that作从句的主语 先行词 事物 定语从句 关系代词which作从句的主语 (a) Streets, beaches and parks that are usually full of people remain empty. (b) The natural wonders which have been hidden by pollution for years appear again. Read the sentences from the reading passage and summarise the grammar rules. 关系代词that/which引导的定语从句 Read and find more sentences with this structure. Forests take back the space that humans now live in. Perhaps we should remember the wise words which Montaigne once wrote —let us permit nature to have her way. 先行词 事物 定语从句 关系代词that作从句的主语 先行词 事物 定语从句 关系代词which作从句的主语 (a) Streets, beaches and parks that are usually full of people remain empty. (b) The natural wonders which have been hidden by pollution for years appear again. Purpose: To guide students to discover and master the core knowledge of "that/which" relative clauses through "read and find" and targeted explanation, and help them clarify usage distinctions in specific situations with examples. 5 定语从句 THE ATTRIBUTIVE CLAUSE 关系代词that/which引导的 引导词 关系代词 先行词 在定从中成分 which 物 主语/宾语 that 人/物 主语/宾语/表语 注：一般在先行词为物体的时候，that和which可以互换。 主句 先行词 从句 关系词 作主语 例：She was not on the train _____ arrived just now. that/which 引导词 关系代词 先行词 在定从中成分 which 物 主语/宾语 that 人/物 主语/宾语/表语 注：关系代词在从句中做宾语时可以省略。 主句 先行词 从句 关系词 作宾语 例：Is this the book _____ you are looking for? that/which 用 法 区 别 1. 当先行词是anything，everything，nothing，few，all，none，little等代词时，或者是由any，every，all，some，no，little，few，much，each等修饰时： Have you take down everything (that) Mr. Li said? All that can be done has been done. There is little (that) I can do for you. Any man that/who has a sense of duty won't do such a thing. 在下列情况下，关系词用that而不用which 用 法 区 别 2. 当先行词被序数词修饰时： The first place that they visited in London was the Big Ben. This is the best movie that I have ever seen. This is the very good book I want to buy. After the fire in his house, the old car is the only thing that he owned. 3. 当先行词被形容词最高级修饰时： 4. 当先行词被the very/only/same/last 修饰时： 在下列情况下，关系词用that而不用which 用 法 区 别 在下列情况下，关系词用that而不用which。 5. 当先行词前有who,which等疑问代词时： Who is the man that is standing there? Can you remember the scientist and his theory that we have learned? The village is no longer the one that it used to be 10 years ago. Which is the T-shirt that fits me the most? 6. 当先行词既有人，又有动物或者物体时： 7. 当先行词在定语从句中做表语时： 用 法 区 别 在下列情况下，关系词只能用which 1. 介词前置时，关系代词只能用which： It is a tool with which we can open a can. She failed the exam, which made her parents very angry. My glasses, without which I was like a blind man, fell to the ground and broke. 2. 引导非限制性定语从句修饰某物或整个句子时，只能用which Practice 请用which或that填空 1. Internet is so interesting, _________ makes all possible happen. 2. Who is the man _________ teaches you English? 3. Is there anything ____________ I can do for you? 4. The key with __________ to open the door has been lost. 5. He invited us to dinner, __________ was very kind of him. 6. This is the most important thing ___________ I want to do. which that that which which that 1. Air pollution is a problem. Air pollution affects everyone. ___________________________________________________________ 2. Some organisations harm the environment. These organisations should be punished. ___________________________________________________________ ___________________________________________________________ Air pollution is a problem that/which affects everyone. These organisations that/which harm the environment should be punished. Connect the sentences with that or which. that/which that/which that/which who/that Complete the webpage using that, which or who. Purpose: To consolidate students’ mastery of "that/which" relative clause usage, and enable them to apply the learned grammar knowledge in practical language scenarios 15 Work in pairs. Choose one of the cartoons and discuss its meaning. These makes the Earth warmer. Polar bears and penguins lose their ice homes and face great danger. It’s your turn now. Use the words and expressions from the reading passage and the useful expressions to help you. People waste too much clean water in daily life. The Earth can no longer supply us with enough fresh water. Humans cut down plenty of trees for wood. We won’t have enough natural resources in the future. 1. The oceans are in trouble. in trouble表示“陷入困境，遭遇麻烦”。 in + 抽象名词常表示“处于某种状态之中”，如in danger 处于危险中；in difficulty 有困难；in need 有需要。 翻译句子： 许多城市正遭受着空气污染之苦。 Many cities are suffering from air pollution. 我们应该帮助身处险境的野生动物。 We should help wild animals in danger. 2. Sea animals that/which can’t live with higher temperatures are suffering from global warming. suffer from表示“遭受……带来的痛苦或不利影响”。 翻译句子： 许多城市正遭受着空气污染之苦。 Many cities are suffering from air pollution. 3. Second, we should stop throwing rubbish into the oceans. throw rubbish into“向……内扔垃圾” 翻译句子： 法律禁止人们向河里扔垃圾。 Laws forbid people to throw rubbish into rivers. stop doing sth.“停止做某事(停止正在做的事)” stop to do sth. “停下来去做某事(停止在做的，开始做另一件事)” 4. For people who are worried about the oceans, there’s a lot (that) we can do. There’s a lot we can do.“我们有很多可以做的事” 翻译句子：人们担忧全球变暖问题。 People are worried about global warming. be worried about sth.“担心某事” 翻译句子： 要解决这个问题，我们有很多可以做的。 To solve this problem, there’s a lot we can do. 5. There is no time to waste. We must act NOW, or we will only see sea animals in museums. There is no time to waste. 强调“刻不容缓，时间紧迫”。 翻译句子： 保护濒危动物刻不容缓。 There is no time to waste in protecting endangered animals. or在此表示 “否则”，其后面往往是某种不好的结果。 翻译句子：节约用水，否则我们很快就会耗尽淡水。 Save water, or we will run out of fresh water soon. I. 根据句意和汉语提示，写出所缺的单词。 1. The ___________ (污染) from factories is harmful to our health. 2. Many sea animals are in danger because of rising sea ____________ (温度). 3. We must protect ___________ (森林) because they are home to many animals. 4. Stop polluting the sea, ___________ (否则) many sea animals will die out. 5. Some _____________ (组织) are working hard to clean the oceans. pollution temperature forests or organisations 1.由于海洋污染，许多海洋生物陷入麻烦。 Many sea animals are ________ ___________ because of ocean pollution. 2.我们应该使用不产生温室气体的绿色能源。 We should use green energy that produces no ___________ _________. 3.过度捕捞是许多鱼类消失的主要原因。 ____________ is the main cause of many fish disappearing. 4.我们必须立即行动，否则就太晚了。 We must _________ _________, or it will be too late. 5.有些人正在伤害环境。 Some people are _________ ______ _____________. II. 根据汉语意思完成句子。 in trouble greenhouse gases Overfishing act now harming the environment 1. The energy ______________ comes from the sun is called solar energy. 2. People ______________ care about the earth always recycle their waste. 3. This is the book ______________ I told you about yesterday. 4. The animals ______________ live in the Arctic are facing climate change. 5. We should protect the rivers ______________ provide us with clean water. III. 用who/whom/that/which填空。 that / which who that / which that / which that / which 微软用户 (微软用户) - whom和不填的未涉及，题干中就不要提了 Basic homework Practical homework Extended homework Rewrite two original sentences using that or which based on the passage. Design a short slogan about nature using that or which. Read a short article and identify 2-3 sentences with that/which/who. $