Unit 2 Teenage problems Grammar 课件 2026-2027学年译林版英语九年级上册

该初中英语课件聚焦if/whether及连接代词/副词引导的宾语从句，通过分析例句（如“I wonder if...”）导入，构建“例句感知-用法归纳-拓展应用”的学习支架，衔接从基础用法到特殊情况的知识点脉络。 其亮点是以青少年问题为情境载体，如Amy的友谊困惑、与父母沟通问题，贴近学生生活提升语言能力。通过“Read and summarise”培养分析归纳的思维品质，分层练习（填空、对话、写信）兼顾不同水平，助力学习能力发展。学生能在真实语境中掌握语法，教师可直接使用结构化活动提升教学效率。

Grammar Unit 2 Teenage problems 23021 学习目标 01 能掌握if或whether引导的宾语从句。 02 能掌握连接代词和连接副词引导的宾语从句。 23021 Try to analyse the words in bold. 1. I wonder if I’m going to bed too late. 2. I wonder if we understand each other at all! Lead in They are object clauses introduced by if. 23021 新课讲授 Read and summarise 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. 23021 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. √ Summary We often use whether instead of if in formal situations. The teacher wanted to know whether the students were under a lot of stress. 23021 if或whether引导的宾语从句 我们可用if或whether引导宾语从句,此时从句部分的语义相当于一个一般疑问句。 连词if和whether意思是“是否”,在从句中不充当句子成分,在口语中多用if。 e.g. I want to know if/whether he is our new teacher. 我想知道他是不是我们的新老师。 e.g. Tom wonders if/whether his grandpa will come next week. 汤姆想知道他的爷爷是否下周过来。 23021 宾语从句的语序必须是陈述语序,即“连接词+主语+谓语+其他成分”。 宾语从句中的人称代词要符合逻辑,有时需进行合理变化。 e.g. “Did Mary clean the classroom yesterday?” Mr Hu is asking. Mr Hu is asking if/whether Mary cleaned the classroom yesterday. 胡老师在问昨天玛丽是否打扫教室了。 e.g. She wonders, “Can I be a great scientist like Yuan Longping when I grow up?” She wonders if/whether she can be a great scientist like Yuan Longping when she grows up 她在想自己长大后能不能成为一位袁隆平那样伟大的科学家。 “Can you help me?” she asks. She asks if/whether I can help her. 她问我能不能帮助她。 23021 拓展:宾语从句只用whether不用if的情况。 1. 在介词后面 e.g. We are worried about whether it will rain tomorrow. 2. 在动词不定式前 He can't decide whether to go to Canada. 3. 当与or或or not连用时 I don't know whether he's free or not. She asks me whether I am from Yancheng or Nanjing. 4. 宾语从句提前时 Whether this is true or not, I can't say. 23021 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 Practice if/whether whether 23021 Talk with your partner about your learning problems, using object clauses introduced by if or whether. 23021 Read and summarise 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. 23021 连接代词和连接副词引导的宾语从句 我们可用连接代词或连接副词引导宾语从句,此时从句部分的语义相当于一个特殊疑问句。 Summary e.g. We do not know whose pencil this is. 我们不知道这支铅笔是谁的。 Nobody knows when the train will arrive. 没人知道火车什么时候会到。 注意:常见的连接代词有what、who、whom、whose、which;连接副词有when、where、how、why等。 23021 连接代词和连接副词有词义,并且在从句中充当句子成分。 e.g. Can you tell us what they are doing? 你能告诉我们他们在做什么吗? (what在从句中作宾语,意思是“什么”) 宾语从句的语序必须是陈述语序。 e.g. She wants to know why that little boy is crying. 她想知道那个小男孩为什么哭。 23021 宾语从句中的连接代词who与whom都指人,意思是“谁”。其中who为主格,在从句中作主语,whom为宾格,在从句中作宾语。 e.g. I do not know who is playing the piano next door。 我不知道谁在隔壁弹钢琴。 Can you guess whom/who my father is talking with? 你能猜一猜我爸爸正在和谁谈话吗? 注意:whom在口语中很少使用。大多数情况下,我们可以用who代替whom。 23021 含有宾语从句的复合句的标点由主句决定。 e.g. I am not sure if/whether the bag is big enough. 我不确定这个包是否够大。 Can you tell me which bus I should take? 你能告诉我该乘哪路公共汽车吗? 23021 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 Practice 23021 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 23021 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 23021 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 23021 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 23021 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. 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 23021 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. 23021 1. I hope _ Shanghai Football Team can win the match. 2. I want to know _ the foreign guests visited them the day before yesterday. 3. I don't know _ Jack can jump farther than Peter. 4. Lucy told me _ the famous singer would come to China the next week. 5. I wonder _ or not they will go on with their research work. 一、用 that,if 或whether 填空。 that if/whether if/whether that whether 当堂检测 23021 二、单项选择。 1. — Do you know _ the girl in blue is? — I'm not sure. Maybe a teacher. A. whose B. how C. what D. which 2. — Could you tell me _? — To get ready for the High School Entrance Exam. A. what he is busy B. why he stays up C. if he is worried D. where he can pass the exam 3. — Philip has gone to New Zealand. — Oh, can you tell me _? A. when did he leave B. when he is leaving C. when he left D. when is he leaving B C C 23021 Homework Write sentences using object clauses introduced by that if/whether/question words. Preview Unit 2 Integration. 23021 $