Unit 8 Section A Grammar Focus (3a～3c) 语法课课件 2025-2026学年人教版英语八年级上册

该初中英语课件聚焦if条件句的基本结构及“假设—结果/建议”逻辑关系，通过视频《Count on me》和“Monkey打赌”情境导入，引导学生观察例句共同点，再经“Look and fill”填空、课文例句查找、结构分类（零条件句、第一条件句）及句型转换练习，搭建从感知到应用的学习支架。 其亮点在于情境化与多模态融合，以“团聚邀请”“团队训练计划”等真实场景任务驱动，结合视频、图片和分层作业（必做思维导图+选做生活例句收集），提升学生语言运用能力和逻辑思维品质，教师可通过清晰的结构梳理和实践活动，高效落实语法教学目标。

If you find itself stuck in the middle of the sea, i'll still the world to you. If you ever find itself lost in the dark, see, i'll be the light to get you烦恼。我会美了to help our friends in me。And I three, two, and you'll be there. We use the first conditional to talk about things that might happen in the future. So this means snow is not certain, but it's a real possibility tomorrow. The sentence has two parts, two classes. One is the condition and what is the possible result? You can reverse the order of the classes. And IT means the same thing if the sentence starts with, if we generally use a comma, if if comes in the middle of the sense, the common isn't necessary. Let's look at the verb forms. Here we have if and then the present simple tense, and then the model verb will, and the base form of the verb. Notice, we use the present tense in the if clause. So we're talking about the future, but we're using the present tense in some languages. You can use the future form here, but not in english. This sentence is is wrong, so don't make this mistake. So we use the present tense to talk . about the future. Yes, but apart from that, the grammar is straightforward. What about questions and . its negatives? They're easy too. Well, is the model firm? So to make a question, we reverse the word order instead of you will say, will you . negatives are straight forward to with Normal verbs in the present simple, we use dot or doesn't with will it's different because will is a model of verb. We use the contraction won't will not out. Presentation Unit8 Let’s communicate﹗ Section A How do we communicate? Grammar Focus (3a-3c) 语法课公开课 单元主题范畴：人与社会 单元主题内容：良好的人际关系和人际交往；交流与合作，团队精神 (2024新版)人教版 八年级(上册) Presentation Learning Objectives 1.学生能够通过观察和分析含if条件句的例句，深入理解if条件句的基本结构及“假设—结果/建议”的逻辑关系。（学习理解） 2.学生能够掌握并准确运用if条件句完成句子匹配练习，在具体沟通场景中正确关联“假设情境”与“对应结果/建议”，提升语法逻辑的连贯性和运用熟练度。​(学习理解，应用实践) 3.学生能够熟练运用if条件句完成“团聚邀请”“团队训练计划”等情境的文本填充，并围绕填充内容进行简短交流，在实践中灵活运用if条件句表达计划、请求与假设，展示语言应用能力。(迁移创新) Presentation Look and say Let’s watch two videos and answer the question. What do these sentences have in common? If you ever find yourself stuck in the middle of the sea, I'll sail the world to find you. If you ever find yourself lost in the dark and you can't see, I'll be the light to guide you. If you can jump from my palm , you’ll win and I’ll invite Jude Emperor west. If you fail, you will have to leave heaven and never ever return. 有……共同点 If conditional clauses If条件状语从句 条件状语从句表示在……条件下某事才能发生，从句是主句动作发生的前提或条件，通常由连词if引导，意为“如果”。 Presentation Look and fill Fill in the blanks according to the pictures and contexts. It will be rainy the day after tomorrow. I will watch TV at home. If it ____ rainy the day after tomorrow, I _____ _____ ______ at home. is will watch TV She will have a birthday party next weekend. She will wear a red dress. If she____ a birthday party next weekend, she _____ ______ a red dress. has will wear Presentation Look and fill Make IF-clauses sentences according to the pictures and key words. get up late miss the bus If he_______________, he ___________ the bus. gets up late will miss be late for school get angry If he_______________, the teacher__________ angry. is late for school will get Do you fand the pattern规律? Presentation Read and find 3a Read the sentences. Find more sentences with if-clauses in Section A. lf you want to solve the problem, a face-to-face talk usually works the best. Texting can make things worse if you're not careful with your words. If the rehearsal ends at 7:00 p.m., I'll pick you up at 7:15 p.m. If you stay calm and say sorry, it will help. If I go there, I will try all the delicious local food. 这些句子由if引导的条件状语从句和主句构成。 if-clauses if “如果，假如”引导的句子表示某事发生所需的条件，在句子中充当状语，因此称之为条件状语从句。 What more can you find? 当从句在主句 ___ 时，用逗号隔开；当主句在前时，则______逗号； 前 不用 Presentation Look and say 3a Find more sentences with if-clauses in Section A. 位置 例句 Section A 1b, 1c 1. We’ll finish at 7:00 p.m. if it’s on time. 2. If everything goes well, I’ll see you at 7:15. 3. If the traffic is too bad, you’ll have to wait for a few minutes. 4. If I visit China this year, I will go to the park with you. 5. If you can make it, I’ll show you around the city and let you taste all the yummy local food. 6. When will the rehearsal end if it’s on time? 7. What will the man do if he visits China this year? Presentation Look and say 3a Find more sentences with if-clauses in Section A. 位置 例句 Section A 1d 1. If you come to my city, I’ll show you around. 2. If I go there, I’ll try all the delicious local food. Section A 2a and 2d 1. If you want to solve the problem, a face-to-face talk usually works the best. 2. If you can’t meet, just call your friend. 3. Some of you may prefer texting, but it takes longer and can make things worse if you’re not careful with your words. 4. If you stay calm and say sorry, it will help. 5. If it is still hard to talk, take a break. Presentation Look and say 3a Find more sentences with if-clauses in Section A. 位置 例句 Section A 2e 1. If you can come, I’ll be very happy. 2. If you want to make some new friends, this is a good chance. 3. If you need help, I think you should tell … 4. If you talk to …, I think he / she will be happy to help you. 5. If you go there, you’ll … 6. If you join me, we can … Presentation Read and say 3a Read the sentences and identify the tenses of the main clause and the subordinate clause. 读句子说出主句和从句的时态。 lf you want to solve the problem, a face-to-face talk usually works the best. Texting can make things worse if you're not careful with your words. If the rehearsal ends at 7:00 p.m., I'll pick you up at 7:15 p.m. If you stay calm and say sorry, it will help. If I go there, I will try all the delicious local food. 一般现在时 一般现在时 一般现在时 一般现在时 一般现在时 一般现在时 含有情态动词的一般现在时 一般将来时 一般将来时 一般将来时 zero conditional sentence 零条件句 first conditional sentence 第一条件句 Presentation Look and learn 3a Read the sentences and identify the tenses of the main clause and the subordinate clause. 读句子说出主句和从句的时态。 lf you want to solve the problem, a face-to-face talk usually works the best. 一般现在时 一般现在时 zero conditional sentence 零条件句 描述客观事实、自然规律、普遍真理或习惯性行为。 条件成立时，结果必然发生。不存在任何不确定性。 If + 一般现在时，主句 + 一般现在时。 e.g. If you heat water to 100°C, it boils. 如果你把水加热到100°C，它就会沸腾。   If the sun sets, it gets dark. 如果太阳落山，天就会变黑。 结构： 客观事实 自然规律 If plants don’t get enough sunlight, they turn yellow slowly. If you want to solve the problem, a face-to-face talk usually works the best. Presentation Read and say 3a Read the sentences and identify the tenses of the main clause and the subordinate clause. 读句子说出主句和从句的时态。 first conditional sentence 第一条件句 用于表示在特定条件下可能会发生的情况。结果的实现是有条件的，且这个条件有实现的可能性。 Texting can make things worse if you're not careful with your words. If the rehearsal ends at 7:00 p.m., I'll pick you up at 7:15 p.m. If you stay calm and say sorry, it will help. If I go there, I will try all the delicious local food. 一般现在时 一般现在时 一般现在时 一般现在时 含有情态动词的一般现在时 一般将来时 一般将来时 一般将来时 Presentation Look and learn 3a first conditional sentence 第一条件句 Read the sentences and identify the tenses of the main clause and the subordinate clause. 读句子说出主句和从句的时态。 结构： If you like sightseeing, you will love it! If you walk along the road, you will see many old buildings. 主句用一般将来时，从句用一般现在时，即“主将从现”。 If + 一般现在时，主句 (一般将来时)。 We’ll plant trees on the mountains if it is fine tomorrow. If it rains next Sunday, we won’t go for a picnic. Presentation Look and learn 3a Read the sentences and identify the tenses of the main clause and the subordinate clause. 读句子说出主句和从句的时态。 first conditional sentence 第一条件句 结构： You can also see famous buildings around it if you visit People's Square. You should study hard if you want to make your dream come true. If + 一般现在时，主句(情态动词may, might, can, must, should等的句子)。 主句用一般将来时，从句用情态动词，即“主情从现”。 If I get there early, I can see the doctor soon. If your parents are busy, you must help them. Presentation Look and learn 3a Read the sentences and identify the tenses of the main clause and the subordinate clause. 读句子说出主句和从句的时态。 first conditional sentence 第一条件句 结构： Have a rest if you feel tired. Please let me know if she comes back. If + 一般现在时，主句(祈使句)。 主句用一般将来时，从句用祈使句，即“主祈从现”。 Put up your hand if you have any questions to ask. Don’t wait for me if I am late. 条件状语从句可以和其他句式进行转换吗？ Presentation Look and learn 有些句子可与含 if 条件状语从句互相转换 1. 借助“祈使句+ and/or +句子（一般将来时）”这一句型来转换。（and转换为_______形式，or转换为________形式） 肯定 否定 If you get up early, you’ll catch the school bus. = Get up early, and you’ll catch the school bus. = Get up early, or you won’t catch the school bus.早点起床，你就会赶上校车。 and 在句意上表示顺承，意为“那么，就”；or 表示转折，意为“否则”。 Hurry up, or you’ll miss the train. = If you don’t hurry up, you’ll miss the train. Eat well and you will be healthier. = You will be healthier if you eat well. 原句型: 祈使句 + _____ + 陈述句 转换规则: 将祈使句改为 if从句(or转换 为否定形式，and转换为肯定形式) and/or Presentation Look and learn 2. 可借助 ________ 或 _____ 来转换条件状语从句。 without with 有些句子可与含 if 条件状语从句互相转换 If there is no sunshine, plants will die. =Plants will die without sunshine. 如果没有阳光，植物将会死亡。 If you help me, I’ll get better grades. =With your help, I’ll get better grades. 如果你帮助我，我将取得更好的成绩。 = Without your help, I won’t get better grades. 没有你的帮助，我将不会取得更好的成绩。 Presentation Look and fill 合并句子 If it ____ sunny tomorrow, they _____ _____ a trip. It will be sunny tomorrow. They will have a trip tomorrow. is will have They _____ _____ a trip if it ____ sunny tomorrow. is will have If he ________ study hard, he _____ _____ in the exam. He won’t study hard. He will fail in the exam. doesn’t will fail He _____ ____ in the exam if he ________ study hard. doesn’t will fail Presentation Look and learn as long as 引导的条件状语从句 结构：主句 + as long as + 条件从句 或  As long as + 条件从句， + 主句 主句（将来/情态动词/祈使句） + as long as + 从句（一般现在时）。 As long as it doesn’t rain, we will go hiking tomorrow. 只要不下雨，我们明天就去徒步。 You can succeed as long as you keep trying. 只要你不断尝试，你就能成功。 Stay with the team as long as you follow the rules. 只要你遵守规则，就待在队里吧。 1.主将从现 2.主情从现 3.主祈从现 Presentation Match the two parts to make sentences. 3b Look and learn A. try texting. B. we'll understand each other better. C. you can write things down for him. D. I'll call you right away. E. I'll call a taxi for you. F. will you join me for dinner? 1. If we can have a face-to-face meeting, 2. If I have good news, 3. If you need to leave, 4. If you can finish your work early today, 5. If the old man has difficulties in hearing, 6. If you can't reach him by phone, /ˈmiːtɪŋ/ n. 会面；会议 /ˈdɪfɪkəlti/ n. 困难；难题 try doing sth. 尝试做某事 立即；马上 have difficulties in doing sth. 做某事有困难 reach sb. by.... 通过....联系某人 join sb. for.... 和某人一起 从句 主句 Presentation Watch and learn Presentation Fill and say 3c Fill in the blanks with the correct forms of the verbs in brackets. go will see drop will give start will perform Give let think line /laɪn/ n. 字行；便条；线 drop sb a line 给……写信 detail /ˈdiːteɪl/ n. 细节；详情 reunion /ˌriːˈjuːniən/ n. 团聚；重逢；聚会 seriously /ˈsɪəriəsli/ adv. 严肃地；认真地 training /ˈtreɪnɪŋ/ n.训练；培训 Presentation Think and say 3c Then discuss what the situations are and whom the information is for. go will see drop will give Key words Situation For whom Form of communication ► old faces ► drop me a line ► reunion An invitation to old friends’ reunion an old friend or classmate note 感叹句 = write to sb. promise sb + (that) 从句 who haven't seen each other for a long time. Presentation Think and say 3c Then discuss what the situations are and whom the information is for. start will perform Give let think Key words ► training plan for the team ► new season ► a good time to meet Situation make a team training plan for the new season For whom a teammate or coach （教练） Form of communication voice message 训练计划 give sb a call 给某人打电话 Presentation Look and say Well done, everyone, here are some gifts. Let’s open them one by one. 一份坦然 坦然面对关系中的风雨。 一份勇气 主动沟通与真诚道歉的勇气。 一份智慧 将每一次分歧，都视为让彼此靠得更近的桥梁的智慧。 Presentation Class test I. 用括号内所给内容的适当形式填空。 1. Don’t play football outside if it _______ (rain) this afternoon. 2. If you don’t listen carefully, you ____________ (not know) the answer. 3. Amy is so confident. She thinks she can do anything if she ______ (try) her best. 4. ______ (tell) Jim the good news if you _______ (meet) him tomorrow morning. 5. My aunt __________ (take) my cousin and me to the concert if she ______ (get) the tickets. rains won’t know tries Tell meet will take gets Presentation Class test II. 翻译句子。 1. 如果明天有会议，我会马上通知你。 If there is a meeting tomorrow, I will inform you right away. 2. 如果你需要帮助，就给我写封信。 If you need help, drop me a line. 3. 如果他认真对待训练，他会进步很快。 If he takes training seriously, he will improve quickly. 4. 如果我们忘记了聚会的细节，就查看邀请函。 If we forget the details of the reunion, check the invitation. Presentation Class test 1. I’ll have fun if I visit the science museum. (对划线部分提问) _______ _______ ________ if you visit the science museum? 2. Finish your homework and you can watch TV. (改为复合句) ______ you finish your homework, you _____ watch TV. 3. I can finish the work on time. He’ll help me. (用if合并为一句) _____ he ______ _____, I _______ finish the work on time. 4. Get up early, or you will be late for the meeting. (改为同义句) _____ you _______ get up early, you will be late for the meeting. 5. I will be available this weekend. I will go to visit my aunt. (用if合并) ____ ___ ____ available this weekend, I _____ ____ to visit my aunt. What will happen III. 按要求完成句子，每空一词。 If can If helps me can If don’t If I am will go Presentation Must-do 必做 1.Recite the basic structures of if-clauses and draw a mind map to summarize the use. Choose to do 选做 1. Collect if-clauses from daily life (such as advertisements, movie lines, books, etc.), with at least 5 examples. Analyze the logical relationships they express and their functions, and organize them into a document. $Let's make a bet, if you can jump from my palm, you win. And i'll invite the jay temper west and ask him to abduct to you. If you fail, you'll have to leave him and ever return. H, bt, that's a promise. If I can escape your poem, can you guarantee the jay emperor will leave? I can, I can. Then it's a deal. All right, all right. very well then. Look carefully, old man. Here I go.