Unit 2 Teenage problems Grammar 课件 2026-2027学年初中英语译林版九年级上册

该初中英语课件聚焦宾语从句语法，核心涵盖if/whether及疑问词引导的宾语从句，包含引导词选择、时态呼应和陈述语序三大要素。通过对话导入创设情境，结合青少年问题文本分析用法，以规则讲解、例句示范、分层练习为支架，构建“感知-理解-应用”的学习脉络。 其亮点是以青少年生活问题为情境载体，贴近学生认知，提升语言运用能力。通过文本分析、对话练习、写作任务，培养分析和解决问题的思维品质，结合“疑问词+不定式”转换技巧，发展学习策略。学生能在真实语境中掌握语法，教师可直接使用结构化内容提升教学效率。

Unit 2 Teenage problems Grammar 1 Learning aims 能掌握if或whether引导的宾语从句。 能掌握连接代词和连接副词引导的宾语从句。 2 Lead in 3 Activity 1 Use Object clauses introduced by if or whether correctly Read the texts below and pay attention to the object clauses introduced by if or whether. Then summarize their usages. Amy often argues with her best friend about silly little things. She wonders if this is normal, so she talks to her mum about it. She asks whether she has any advice. Her mum tells her to talk to her friend about the situation. Amy wants to improve her friendship, but she isn’t sure if talking about it will help. 4 We use if or whether to introduce an object clause that expresses a yes/no question. Such an object clause often follows verbs such as ask, see, wonder and find out. The word order in the clause should be the same as that in a statement. Is this normal? She wonders if this is normal. She wonders if is this normal. √ × We often use whether instead of if in formal situations. The teacher wanted to know whether the students were under a lot of stress. 由于if和whether连接的句子在语义上是一般疑问句或选择疑问句，因此要注意把从句语序改为陈述句语序。 一、由if / whether引导的宾语从句 当宾语从句具有疑问意义时，可用if或whether引导。它们在句子中的意思是“是否”,不能省略。 宾语从句结构 II: 主语+谓语动词+whether/if+宾从(一般疑问句，陈述语序) 主语+谓语+whether/if+宾从(一般疑问句 陈述语序) Is June a good time to visit Hong Kong? (I wonder) I wonder whether June is a good time to visit Hong Kong. Will they have the races again next year? ( He wonders) I wonder if they’ll have the races again next year. Does he like reading books? (She asks) She asks if he likes reading books. if或whether引导宾语从句时，作“是否”讲，一般情况下，两者常可换用。二者在下列几种情况下不能换用： 1. 宾语从句置于句首表示强调时，应用whether，不用if。 如：Whether this is true or not, I can’t say.这是否对，我不能说。 2. 宾语从句与or not直接连用时，应用whether，不能用if。 如：I don’t know whether or not he will come tomorrow. 我不知道他明天是否来。 3. 与动词不定式连用时，只能用whether。 如：She can’t decide whether to go to America. 她不能决定是否去美国。 4. 从句作介词宾语时，只能用whether。 如：I worry about whether I hurt her feeling. 我担心是否伤了她的感情。 5. 宾语从句的谓语动词是否定形式时，只能用if，不能用 whether。 如： Tom wants to know if she won’t come here tomorrow. 汤姆想知道她明天是否不来这儿。 6. if意为“假如，如果”时，可以引导条件状语从句，而 whether没有这个用法。 如： If Simon comes here tomorrow, I’ll call you. 假如西蒙明天来这儿，我将打电话告诉你。 主句现在时，从句可使用任何时态； 主句过去时态，从句一律使用过去时态。 当宾语从句是客观真理或不可改变的自然现象时，宾语从句须用一般现在时，不受主句时态的限制。 I think that you are right. Lin Tao thought the TV play was very boring.  Our teacher told us that light travels faster than sound. 宾语从句的时态取决于主句的时态。 二、宾语从句的时态变化 宾语从句三要素 引导词 that+陈述句 if／whether+一般疑问句 陈述语序 时态 主句为一般现在时从句可为任何时态 主句为一般过去时 从句 一般过去时 过去将来时 过去进行时 过去完成时 语序 宾语从句的语序都为陈述句语序 客观真理时态不变 A1 Amy is writing a diary entry about her studies. Complete it below using that or if/whether. I just had my History exam, and I don’t know (1) ______________ I passed it. I know (2) ______________ I tried my best, but I’m not sure (3) ______________ that’s good enough. I’ll have to wait to find out. I really hope (4) ______________ I do well in school this year. That’s why I work so hard every day. I’m not sure (5) ______________ I need to do more. I wonder (6) ______________ it would improve my grades or just make me more stressed. From the bottom of my heart, I just want to succeed and feel proud of myself. that if/whether if/whether that if/whether whether Exercise A2 Talk with your partner about your learning problems, using object clauses introduced by if or whether. Activity 2 Use Object clauses introduced by question words Read the texts below and pay attention to the object clauses introduced by question words. Then summarize their usages. Teenagers often have problems with their parents. They do not always understand why their parents have so many rules. Although this is a common problem, many teenagers do not know what they should. They are not sure how they can have an honest dialogue with their parents. They do not know who they can ask for advice. 14 We use a question word to introduce an object clause that expresses a wh- question. The word order in the clause introduced by a question word should be _____________ (different from, the same as) that in a wh-question. different from 宾语从句可由连接代词 what、who、whom、whose、which 等引导，它们在宾语从句中充当主语、宾语、表语、定语等，因此不能省略。 1. 疑问代词引导的宾语从句 who在宾语从句中作主语 what在宾语从句中作宾语 whose在宾语从句中作定语 ① Do you know who will come tomorrow? ② Do you know what they are talking about? ③ He asked whose bike this was. 你知道明天谁来吗？ 你知道他们在说什么吗？ 他问这是谁的自行车。 宾语从句可由连接副词 when、where、how、why等引导，它们在宾语从句中作状语，不可以省略。 2. 连接副词引导的宾语从句 ① Do you know when they will visit the museum? ② Your coat looks very nice. Could you tell me where you bought it? ③ Could you please tell me how I can read the word? 你知道他们什么时候参观这个博物馆吗？ 你的外套看起来很好看。你能告诉我你在哪里买的吗？ 你能告诉我怎么读这个词吗？ ④ I don't know why he hasn't come yet. 我不知道他为什么还没来。 how在宾语从句中作方式状语 when在宾语从句中作时间状语 where在宾语从句中作地点状语 why在宾语从句中作原因状语 陈述句做宾语从句时，仍然用原陈述语序；疑问句作宾语从句时，原来的倒装语序要改为陈述语序。 二、宾语从句的语序 把下列句子合并为宾语从句。 1. These flowers are from Yunnan. Miss Chi said. 2. Do they want fried chicken? He asked the boys. 3. Where do they live? Do you know? Miss Chi said that these flowers were from Yunnan. He asked the boys if/whether they wanted fried chicken. Do you know where they live? 主句的主语或间接宾语和宾语从句的主语一致时，由关联代词、关联副词引导的宾语从句可以转化为“疑问词+不定式”的结构。 ① He didn't know what he could do. He didn't know what to do. ② Could you tell me how I can get to the station? Could you tell me how to get to the station? 三、宾语从句的时态 1. 主句使用现在时，从句可使用任何时态； 宾语从句的时态取决于主句的时态，分为以下三种情况： ① He says (that) he will leave a message on her desk. ② Do you know how Amy came to school this morning? ③ Could you tell me where the nearest hospital is? Could you tell me...? 等表示委婉请求的问句中，could不表示过去，因此从句的时态不受其影响。 2. 主句使用过去时态，从句一律使用过去时态。 ① The man told me that he was looking for his son. ② The policewoman asked the little boy where he lived. 3. 当宾语从句是客观真理或不可改变的自然现象时，宾语从句须用一般现在时，不受主句时态的限制。 Our geography teacher said that the earth goes round the sun. Exercise B1 The Class 1, Grade 9 students are talking about their problems. Complete each object clause below with the correct question word. Kitty Peter My parents often stick to their own ideas. I don't know _____________ I can communicate with them I need someone to share my worries with. I wonder _____________ I should go to for help. how who/whom I’ve tried my best, but I don't understand _____________ I still get low marks. My parents often come home very late. Sometimes I don't know _____________ I can talk to them. Amy Sandy why when Sometimes I'm careless. I wonder _____________ I can be more careful. I often have difficulty in expressing myself. Who can tell me _____________ I should do? Paul Suzy how what B2 Daniel has some questions. Rewrite his questions by using object clauses introduced by if/whether or a question word. 1 Why did I argue with my friends yesterday? Can I explain ______________________________________________? 2 Can Millie help me get along well with my friends? I wonder __________________________________________________. 3 Where can I find useful articles on friendship? I want to know _____________________________________________. I think I need to learn more about friendship. why I argued with my friends yesterday if/whether Millie can help me get along well with my friends Where I can find useful articles on friendship 4 How much sleep do we need every day? I wonder ________________________________________________. 5 Do I need to buy an English dictionary? I am not sure _____________________________________________. 6 Do the students need to exercise every day? Can you tell me __________________________________________? 7 What would life be like without science? I cannot imagine __________________________________________. how much sleep we need every day if/whether I need to buy an English dictionary if/whether the students need to exercise every day what life would be like without science Sandy: Do you ever feel lonely, Millie? I know (1) ______________ I often feel that way. But I’m not sure (2) ______________ that’s normal. Millie: Yes, sometimes I feel lonely too. Sandy: Do you have any advice? I’m never sure (3) ______________ I should do about it. Millie: I usually talk to my parents. That helps me. But I don’t know (4) ______________ it will work for you. Sandy: I’ll try, but my parents are always busy. So I don’t know (5) ______________ else I can talk to. Millie: I see your problem. Have you ever heard of Mr Friend? He’s a youth worker. He helps teenagers with their problems. Maybe you can write to him. Sandy: That sounds like a great idea. Now I know (6) ______________ I can find help. Thanks, Millie. B3 Sandy and Millie are talking about their problems. Complete their conversation with that, if/whether or a question word. that if/whether what if/whether who/whom where B4 Write a short letter to Mr Friend to talk about one of your problems, using object clauses introduced by that, if/whether and question words. Summary ◆宾语从句 宾语从句三要素 引导词 that+陈述句 if／whether+一般疑问句 陈述语序 时态 主句为一般现在时从句可为任何时态 主句为一般过去时 从句 一般过去时 过去将来时 过去进行时 过去完成时 语序 宾语从句的语序都为陈述句语序 客观真理时态不变 由疑问词引导的宾语从句： what, which, who, whom, whose (疑问代词) when, where, how, why (疑问副词) Homework 1 Write some sentences with object clauses introduced by if/whether/wh-question words. 2 Preview the next period. 30 Lavf57.83.100 $