Unit 6 The power of language Section C Grammaring 课件 2025-2026学年沪外教版英语八年级下册

该初中英语课件聚焦“表示原因的8种表达方式”，通过对话场景导入复习because/because of及to do作原因状语，以“Revision-Presentation-Production”为支架，逐步引入since/as用法，构建新旧知识逻辑脉络。 其亮点在于采用对比表格梳理语法差异，结合匹配练习、对话填空等活动，培养学生语言运用能力与思维辨析能力。分层作业与自我评估设计，助力学生自主学习，教师可通过结构化内容提升教学效率，促进语法知识的实际应用。

Unit 6 The power of language Section C Grammaring 沪外教版(2024)八年级 下 Learning objectives 1 Lead in Revision 3 Presentation Production 5 Summary Assessment 7 Homework 2 4 6 8 By the end of the lesson, I will be able to... 1 2 3 4 review the old words to talk about reasons; learn to use since and as to show reasons; tell the differences of these reason words; use them correctly in daily sentences and conversations. 00 Learning objectives Lead in 01 https://www.21cnjy.com二一教育 You always go to play football at this time. Why do you stay at home today? I don’t go out because of the heavy rain. 01 Revision because of —— 后接名词或名词短语 because of 是介词短语,后面不能接句子,只能接名词、代词或动名词。 I don’t go out because of the heavy rain. because —— 语气最强,最常用 表示直接、根本的原因,用来回答 Why 提问。 I was late for school because I missed the bus. 对比: because + 句子(I was late because I missed the bus.) because of + 名词(I was late because of the bus.) Wow! We haven’t met for such a long time. Yes! I’m so happy to see you here today. to do作原因状语 动词不定式放在表示情绪的形容词后面,说明产生这种情绪的原因。 常用结构:主语 + be + 情绪形容词 + to do I am happy to see you. 常见情绪形容词: happy, sad, glad, sorry, surprised, excited, afraid, proud, disappointed 1. I am surprised to meet you here. 2. She is afraid to walk outside on rainy days. 3. He is sad to hear the bad news. 4. We are lucky to have such a good friend. 01 Revision 1. On 3 September, 1939, a very important moment came as the King gave the speech of his life. 2. These are very powerful words since everyone makes mistakes. 3. As your speech depends on who your audience is, you should think about your listeners. 4. Since he is always against me and making things difficult, I consider him my enemy. Q1 What is the purpose of using since or as in the sentences above? They are used to give reasons or causes. Q2 Can we use since to replace as in sentences 1 and 3? C1.Study the blue parts and answer the questions below. No Yes Grammar highlights 02 Presentation since —— 语气中等,原因已知 表示“既然”“由于”,原因通常是听话人已经知道的。 Since everyone is here, let's begin our class. as —— 语气较弱,原因已知 与 since 用法相似,但语气更弱,更随意。 As it was raining, we stayed at home. 提问规则 只有 because 能回答 Why 问句,since/as 不行 语气强弱排序 because > since > as 标点补充 since/as 放句尾:不用逗号 because 放句首:从句后加逗号 一句话场景区别 because:讲全新、最关键的原因 since:大家都知道的前提 as:顺带提一句背景 Grammar highlights 02 Presentation for —— 语气最弱,补充说明 for 也表示原因,但它是并列连词,不能放在句首,只能放在句中,用来补充说明或推测理由。 It must be morning, for the birds are singing. 注意区别: because 直接原因(最常用) for 补充推测(不直接) due to —— 正式用语,常用于书面 due to 意思也是“由于”,多用于正式文体或书面语。 The game was cancelled due to bad weather. thanks to —— 多用于正面原因 thanks to 表示“多亏了”,通常用于好的、积极的原因。 Thanks to your help, I passed the exam. 02 Presentation Grammar highlights 8种表示原因的表达方式对比总结 Grammar highlights 02 Presentation C2.Match the questions with the answers and use since/as to combine each pair. Questions 1. Why does the vocabulary of English language keep increasing? 2. Why does English change over time? 3. Why does English borrow words from other languages? 4. Why are some English words easy to understand by speakers of other languages? Answers a. It is greatly influenced by different cultures. b. These words have rich meanings. c. These words may be borrowed from other languages. d. It never stops learning from other cultures. 1 — d 2 — a 3 — c 4 — b Match and combine 02 Presentation 1.The vocabulary of the English language keeps increasing since/as it never stops learning from other cultures. 2.English changes over time since it is greatly influenced by different cultures. 3.English borrows words from other languages as these words may come from other cultures. 4.Some English words are easy to understand by speakers of other languages since they have rich meanings. C2.Match the questions with the answers and use since/as to combine each pair. Match and combine 02 Presentation A: Have you watched the film The King's Speech? B: Yes. I was really moved 1 _ King George VI made a perfect speech in the end. A: The ending surely was very impressive. The King trusted Lionel Logue 2 _ he was a great doctor. B: Yes. His way of using Shakespeare's play was effective 3 _ it helped the King to control his breathing and speaking speed. A: That's why the King's speech skills improved a lot. B: And that famous speech was also meaningful 4 _ it gave the British people hope in those dark days. A: Yes. 5 _ the King's speech was encouraging and powerful, it also showed the power of words. C3.Complete the conversation with since/as. as / since As / since as / since as / since as / since Complete the conversation Production 04 I found that there are many loanwords in different languages. Taking English as an example, loanwords are very important. They often appear in the most basic English vocabulary. These loanwords allow English-speaking people to communicate with the rest of the world more easily and clearly. During my study, I realised that language makes us human. It is an important part of human connection. We need it to communicate in our daily life. It helps us share our feelings and thoughts with others. Language is also an important life skill. It gives us the ability to tell others what to do in any situation. C4.Rewrite the underlined sentences with since/as. Since/As they often appear in the most basic English vocabulary, loanwords are very important. Since/As it gives us the ability to tell others what to do in any situation, language is also an important life skill. Since/As it helps us share our feelings and thoughts with others, we need it to communicate in our daily life. Grammar highlights Production 04 Summary 06 1. Choose the best word from the box to complete each sentence. 1. I didn't go to school yesterday _ I was feeling sick. 2. _ you're here, can you help me with this problem? 3. He must be at home, _ the lights are on. 4. _ it was raining, we decided to stay indoors. because Since / As for Since / As because / since / as / for Choose and complete Summary 06 2.Complete the sentences with because of, due to, or thanks to. 1. The sports meeting was put off _ the bad weather. 2. _ your help, I finished the work on time. 3. His success is _ his hard work and dedication. 4. She couldn't attend the party _ a prior engagement. because of / due to Thanks to due to because of / due to Complete the sentences Summary 06 3.Rewrite the sentences using the words in brackets. 1. He was late because he missed the bus. (because of) He was late because of missing the bus. 2. She was happy because she won the prize. (to win) She was happy to win the prize. 3. Since the weather was fine, we went for a picnic. (As) As the weather was fine, we went for a picnic. 4. Thanks to your support, we achieved our goal. (because of) We achieved our goal because of your support. Rewrite the sentences Summary 07 4.There is one mistake in each sentence. Find and correct it. 1. As he is my friend, so I always help him. As he is my friend, I always help him. (去掉so) 2. Why are you late? - As I missed the train. Why are you late? - Because I missed the train. (As Because) 3. He didn't come to school because of he was ill. He didn't come to school because he was ill. (去掉of) 4. Due to he worked hard, he passed the exam. Because he worked hard, he passed the exam. (Due to Because) Find and correct Since / As(已知原因) 语气偏弱,句首需加逗号 Since you are tired, you can have a rest. Because / Because of because+句子,语气最强,回答Why提问 I was late because I got up late. because of+名词/短语 We can't go out because of the rain. Thanks to / Due to(短语类) due to:正式书面用语 The match was put off due to bad weather. thanks to:表积极含义,多亏 Thanks to your help, I succeeded. For / to do for:补充原因,只放句中,前加逗号 He stayed at home, for he was ill. to do:情绪类原因表达 I am glad to meet you. 问句Why 只能用because回答 带of短语后只接名词,不接句子 Unit6 The power of lauguage-since / as Assessment 08 Self-assessment I can learn and remember the target grammar rules through today’s learning activities. I can use the grammar point properly in different sentences and real situations. I can realize the function of this grammar and use it to improve my English expression. Basic (基础) Improving(提升) Extend (拓展) Homework 09 1. 抄写课堂语法核心句型两遍。 2. 完成单句语法填空五道。 1. 根据范例完成两组句型转换。 2. 用表格形式归纳整理本节语法知识点。 1. 结合语法点自主仿写一组对话。 2. 用该语法点造句描写生活场景。 $