Unit 3 Section A Grammar Focus (4a-4c) 语法课公开课课件 2026-2027学年人教版英语九年级上册

Presentation Unit3 Smart Learning Section A How do we learn? Grammar Focus(4a-4c) 语法课公开课 单元主题范畴：人与自我 单元主题内容：生活与学习，积极的学习体验，恰当的学习方法与策略 (2024新版)人教版 九年级(上册) Presentation Learning Objectives 1.观察 Grammar Focus 例句与华罗庚自学短文时，自主归纳 that/ if/whether 引导宾语从句的引导词，时态，语序三要素。（学习理解） 2.在语境中准确选用合适的连接词完成句子，并能口头或书面表达含宾语从句的复合句。; 阅读并理解含宾语从句的语篇，提取关键信息，完成句子填空。(学习理解，应用实践) 3.通过阅读华罗庚的语篇素材，感悟杰出人物刻苦自学、不畏困难的学习精神；学会运用宾语从句表达个人想法、疑惑，能在口头与书面语境中尝试使用该语法进行交流。(迁移创新) Presentation Look and say Hi, everyone! 👋 Today we'll continue to talk about study methods. Different students have different ideas about how to learn effectively! I like self-testing . ______作宾语 名词 Presentation Look and say ________作宾语 I enjoy taking notes 动名词 Presentation Fill and say I decide to study courses on AI. ______作宾语 不定式 Presentation Fill and say Our teacher says learning has many challenges, and I will remember it. ______作宾语 代词 Presentation Watch and say Let’s enjoy an English song and find out the objects(宾语) in the sentences. It's a long long journey till I know where I'm supposed to be It's a long long journey and I don't know if I can believe When shadows fall and block my eyes I am lost and know that I must hide It's a long long journey till I find my way home to you Many days I've spent drifting on through empty shores wondering what's my purpose wondering how to make me strong I know I will falter I know I will cry I know you'll be standing by my side It's a long long journey and I need to be close to you Pay attention to the verb “know”，“wonder” Object clause 一个句子充当主句的宾语，这个句子就是宾语从句（Object clause)。 Presentation Look and say I don't know if I can believe I am lost and know that I must hide I know I will falter I know I will cry I know you'll be standing by my side 由that引导的宾语从句 that在非正式文体中可以省略 由if / whether引导的宾语从句 whether/if不可省略 Object clause (that) (that) (that) 在复合句中，由一个句子充当宾语，这个句子叫做宾语从句 Presentation Watch and say Object clause Definition Structure 在复合句中，由一个句子充当宾语， 这个句子叫做宾语从句。 由“关联词+主语+谓语”构成。 引导宾语从句的关联词有that, if, whether, 接代词who, whom, whose, what, which 连接副词when, why, where, how。 Presentation Look and say PART-01 宾语从句定义 主语 (Subject) 谓语 (Predicate) 宾语 (Object) 动作发出者 说明主语的动作、状态和特征 名词 / 名词短语 代词 动词 - ing 形式（动名词） 动词不定式（to do） 句子 宾语是 = 动作的对象 What is object clause? I think that taking notes is useful. S(主语) V(谓语) 引导词 S(主语) V(系动词) P(表语) 主句(Main Clause) 宾语从句(Oblect Clause) 【定义 】用来充当宾语的句子就是宾语从句。 Presentation Look and say PART-01 宾语从句定义 What are types of object clauses? I find that taking notes in class helps me review knowledge better. 1. 主语 + 及物动词 + 宾语从句 动宾 We are talking about how we can memorize English words more quickly. 2. 主语 + 动词 + 介词 + 宾语从句 介宾 We are glad that group discussion can help us understand hard knowledge points. 3. 主语 + be + 形容词 + 宾语从句 形宾 所以大名鼎鼎的宾语从句： 其实就是一个 “跟屁虫” 跟在动词，介词，形容词后~ Presentation Read and say 4a Read the sentences. Circle the connecting words and underline the object clauses. I believe (that) reading is important for learning. I think (that) the best way is to do maths problems. Peter finds (that) he can connect physics with something in real life. I wonder if /whether you could help me. I want to know if / whether you read English books outside class. 连接词 / 引导词 宾语从句 引导宾语从句的关联词有that, if, whether， that在非正式文体中可以省略，whether/if不可省略 在复合句中，由一个句子充当宾语，这个句子叫做宾语从句 Presentation Look and say PART-02 宾语从句引导词 由that引导的宾语从句 陈述一个 _____ I believe 陈述一个 _____ I think 陈述一个 _____ Peter finds 信念 观点 发现 都是一个完整的______。(陈述事实、观点、发现) 陈述句 宾语从句结构I: 主语+谓语动词+that+宾从(肯定句、否定句) 【总结 】 1.that 在句中_________，表陈述事实， 2.在从句中_____________， 3.在非正式文体和口语中往往_________。 无词义 不充当成分 被省略 我认为使用闪卡是记忆新单词的好方法。 I think (that) using flashcards is a good way to remember new words. 2. 我希望我能成为一名主动学习者。 I hope (that) I can become an active learner. Presentation Look and say that在以下情况中不可省略： I know that that is Lisa’s textbook. ①当宾语从句的主语是that 时。 The manager said, at the meeting, that he wanted to thank all of us. ②当主句与that 引导的宾语从句之间有插入语时。 The teacher told the students (that) they should hand in their homework on time and that they would have a test the next day. ③当主句谓语动词后接两个或两个以上宾语从句时，除第一个从句外，其他从句的that不可省略。 I will never tell anyone that you have ever been there. ④当that宾语从句是双宾语中的直接宾语时。 ⑤当宾语从句中含有其它从句（如if/when引导的从句）时，that不能够省略。 I’m afraid that if you miss the Spring Festival family dinner, you will feel really lonely. Presentation Fill and say Can you find the objects? I believe (that) I believe (that) I believe (that) 当句子是陈述句时，连接词用_________ , 非正式可省略。 I can fly. I can touch the sky. I can soar. 陈述句 that Presentation Look and say 当主句的主语为第一人称(I、we)，且谓语动词是think, guess, believe，suppose等时，如果宾语从句要表达否定含义，通常要遵循“否定前移”原则，即只否定主句，不否定从句。 I don’t think this novel is boring. 我认为这部小说不枯燥乏味。 I/We don’t think believe expect imagine I think it is not difficult to learn grammar. I don’t think it is difficult to learn grammar. I don’t believe she can pass the exam. I believe she can’t pass the exam. 判断哪一种更地道？ I don’t think he will come with you. I think he won’t come with you. Presentation Read and say PART-02 宾语从句引导词 由从属连词if/ whether引导的宾语从句 whether/if不可省略 宾语从句结构II:主语+谓语动词+ whether/if+宾从(由于if/whether连接的句子在语义上是一般疑问句或选择疑问句，要注意把从句改为陈述句语序) Adma wonders __________Fu Xing could help him with his history study. if/whether Mr Smith also wants to know_________students read English books outside class. if/whether 主句的动词大多是wonder/want to know/don’t know等 Presentation PART-02 宾语从句引导词 Look and say I wonder ______________________. 引导词 if / whether 我想知道制作时间轴是否能帮我们记住历史事件。 I want to know whether/if making timelines can help us remember history events. 你能帮我吗？ could you help me ______语序 疑问 Could you help me? I wonder ______________________. (引导词 ) you could help me ______语序 陈述 当句子是一般疑问句时，连接词用_____________ ,译为________。且_______省略。从句用__________ 语序。 if/whether 不可 陈述 是否 引导词＋主语 + 谓语 + 其他 Presentation PART-02 宾语从句引导词 Look and say 引导词 if / whether 你无法分辨他是男孩还是女孩。 You can't tell Is he a boy or a girl? 1. 改为陈述句语气 2.时态呼应 3.用if/whether连接 You can't tell if/whether he is a boy or a girl. Presentation PART-02 宾语从句引导词 Look and say 引导词 if / whether 我们仍然不知道是否这座山上真的有恶魔。 We still don't know Are there any demons on this mountain? 1. 改为陈述句语气 2.时态呼应 2.用if/whether连接 We still don't know if/whether there are any demons on this mountain. 总结： 1.表“是否”，用于表达疑问语气的宾语从句,不能省略; 2.常跟在ask,wonder, know等词后面； 3.从句句意完整，不缺成分； 4.if与whether常可以互换,口语多用if. Presentation PART-02 宾语从句引导词 Look and say 引导词 if / whether 一般情况下，if 和whether 可以互换，if 常用在口语中，而whether 则相对正式。但在以下情况中，只能用whether： Nobody knows whether or not it will snow tomorrow. 没有人知道明天是否会下雪。 ① 在whether or not 结构中。 I’m interested in whether he likes English. 我对他是否喜欢英语感兴趣。 ② 在介词之后。 ③ 在动词不定式之前。 He wondered whether to stay here the next week. ④做主语只用whether。 Whether he will come is not decided. Presentation Look and fill 引导词 含义 引导的句子类型 that（可省略） 无实义 陈述句--肯定句+否定句 if/whether（不可省略） “是否” 一般疑问句转变为陈述句的句子 引导词选美大赛（that/if/whether） 1. We believe ________everyone can learn well. 2. I don’t know ________she will come or not. 3. He asks ______________we have finished homework. 4. They talk about ________they take a trip. 5. I hope ________my English will improve. that whether if/whether whether that Tip：whether 专属舞台 句末or not、 前有介词狼、 后又to do 虎 ✅ ❌ Presentation Read and fill 4b Complete the sentences with that or whether / if. Step1：看从句 陈述事实（that） “是否”的疑问（if/whether） Step 2：whether 专属舞台 句末or not 前有介词狼 后又to do 虎 1. Jim doesn’t know _________ he can take part in the research project or not. 2. My parents think ______ they need to be stricter about my studies. 3. Ms Gao understands ______ some students need more time to improve. 4. Terry wonders ______________ it will be easy to study courses on AI. 5. Could you tell me ______________ this sentence is correct in English? whether that that if/whether if/whether adj. /kəˈrekt/ that在非正式文体中 可以省略，whether/if不可省略 strict adj.严厉的；严格的 be strict about/in sth 对某事严格 be strict with sb 对某人要求严格 Presentation Read and fill Complete the passage with if / whether. I am a middle school student. I want to know ___________ I can learn English well. My teacher says it depends on ______ I practise every day. She also asks me __________ I read English books outside class. She told me that I should ask myself ________ I have reviewed what I learned today or not. We also talked about _________ joining the English club is a good choice. I think this is a great way to improve my English. if / whether whether if / whether whether whether 1 . 当主句后跟一个陈述句时，通常用 _______ 连接（____省略）。 2 . 当主句后面跟一个一般疑问句时，通常用 _______ 或 _______ 连接，意思是“_____”。但以下三种情况只能用whether， “____________ ”、“_________ ”“____________ ”时。 that 可以 whether if 是否 后有 or not 介词后 动词不定式 Presentation Look and say PART-03 宾语从句时态 I know (that) Sun Wukong is fighting with the monster in the cave now. Tang Monk met the White Bone Demon three times in the story. 【主句】一般现在时 总结：主现从任何 (现在进行时) (一般过去时) 【从句】据情况而定 若主句是一般现在时， 从句用任何所需时态。 Presentation Look and say PART-03 宾语从句时态 I wonder whether June is a good time. I hear that he went to Beijing to spend Mid-autumn Day. She says that she has been to China. I know (that) you are a teacher. 我知道你是老师。 I know (that) you were a teacher one year ago. I know (that) you will be a teacher next year. 1. 主句是 一般现在时，从句使用____. A. 一般现在时 B. 任何时态（根据实际情况） 主现从随 主句谓语动词 是一般现在时 宾语从句谓语动词可以根据句意使用所需要的时态。 (一般现在时) (一般过去时) (现在完成时时) (一般现在时) (一般过去时) (一般将来时) Presentation She said (that) Lin Daiyu buried flowers in the garden yesterday afternoon. Lin Daiyu was a talented poet. 【主句】一般过去时 总结：主过从必过 【从句】相应的过去时态 Look and say PART-03 宾语从句时态 (一般过去时) (一般过去时) Presentation Look and say PART-03 宾语从句时态 Hou Yi found that he could see his wife there. How Hou Yi wished that Chang’e could come back. He heard you had a bad cold. He said he had been to Shanghai before. 主句谓语动词 是一般过去时 宾语从句谓语动词可以根据句意使用相应的过去的某种时态。 (一般过去时) (一般过去时) (一般过去时 主过从也过 2. 主句是过去时态，从句使用_____. A. 一般现在时 B. 一般过去时 C.过去时态的某种形式 (过去完成时 Presentation Look and say PART-03 宾语从句时态 The teacher told us (that) the earth goes around the sun. 【主句】一般过去时 总结：真理永一现 【从句】当从句表示的是客观事实、真理等，不管主句是什么时态，从句都用一般现在时 Grandma told me the sun rises in the east. 3. 主句是过去时态，从句是一个客观真理或事实时，从句使用______。 A. 过去时态的某种形式 B. 一般现在时 客观事实真理用一现 Presentation Look and say PART-03 宾语从句时态 一般现在时→一般过去时 现在进行时→过去进行时 一般将来时→过去将来时 现在完成时→过去完成时 一般过去时→过去完成时 若主句是一般过去时，从句则用过去相关的时态 Did the train leave? She didn’t know. →She didn’t know if / whether the train had left. 主过从随过 Presentation Look and fill 宾语从句时态 及时练习 1. I know that he _______ (live) in Beijing now. 2. He said he ____________ (watch) TV at that time. 3. She says she ______ (go) to the park every weekend. 4. We believe they __________ (come) to our party tomorrow. 5. He said that light _______ (travel) faster than sound. 6. She told me she________ (visit) the Great Wall last year. 7. They said they ___________ (have) a meeting the next day. 8. The scientist told us that the sun______ (rise) in the east. lives was watching goes will come travels visited would have rises Presentation Look and say PART-04 宾语从句语序 注意观察下面句子的变化 Does he like sports? ( Do you know…) Will they play basketball after school? ( He asks…) 一般疑问句 陈述句 一般疑问句 陈述句 Do you know (whether) he likes sports? He asks (whether) they will play basketball after school. 宾语从句都是运用陈述句的语序，即“主语在前，谓语在后”的顺序 Presentation Look and choose 1. When will he go to the library? His brother asks when he will go to the library . His brother asks when will he go to the library . 2. What does he want to buy ? I don’t know what he wants to buy . I don’t know what does he want to buy . 3. Who are we going to meet ? Can you tell me who we are going to meet ? Can you tell me who are we going to meet ? 主句+连接词+从句（主+谓+其他成分） 陈述语序 宾语从句语序 Presentation Look and fill 宾语从句语序 What’s wrong? What’s the matter? What has happened? Who is in the classroom? I don’t know_________________ . 2) Can you tell me __________________? what has happened what’s the matter 总结 疑问词作主语（无需变语序），疑问词作宾语（需变语序） I don’t know what’s wrong. I don’t know what you are doing. Presentation Watch and learn Presentation Summary of object clauses Look and fill that, if, whether, what, who,where, why和how等 主现从随意 主过从随过 事实真理永不变 宾语从句用陈述句语序，即“主语+谓语” 宾语从句三要素 关联词 时态 语序 Presentation Watch and say Presentation 4c Read and complete Complete the passage with the correct sentence parts. Then discuss whether you would like to try the learning method suggested. A. by studying maths books B. He suggested that C. He wondered whether D. learning had many challenges E. It is hard to believe As a youth, Hua Luogeng left high school to support his family. However, he loved maths and did not want to give up. ______ there was a way to continue learning. Finally, he decided to teach himself ______. Hua Luogeng later introduced a reading and learning method to young learners. ______ learners should read and take notes very carefully, and then summarize the key points. He once said, “A book starts heavy and thick but becomes thinner as you understand it better.” As an active learner, Hua Luogeng stayed positive no matter what difficulties he met in his life and studies. ______ that such a talent also failed exams in school, but that was true for him. He said that ______ and it was important to take things step by step. C A B E D What learning methods were suggested by Hua Luogeng? Was Hua Luogeng an active learner? How do you know? Presentation Read and underline As a youth, Hua Luogeng left high school to support his family. However, he loved maths and did not want to give up. He wondered whether there was a way to continue learning. Finally, he decided to teach himself by studying maths books. Hua Luogeng later introduced a reading and learning method to young learners. He suggested that learners should read and take notes very carefully, and then summarize the key points. He once said, “A book starts heavy and thick but becomes thinner as you understand it better.” As an active learner, Hua Luogeng stayed positive no matter what difficulties he met in his life and studies. It is hard to believe that such a talent also failed exams in school, but that was true for him. He said that learning had many challenges and it was important to take things step by step. Underline the object clauses. Presentation Read and answer 华罗庚 中国现代数学之父 1. What difficulties did Hua Luogeng face in his life? He left high school early to support his family. He failed exams. Learning was changing. 2. How did he continue learning? He taught himself by studying maths books. 3. What helped him succeed? He never gave up. He learned by himself. He stayed positive.He read actively and took notes. 4. What does “A book starts heavy and thick but becomes thinner as you understand it better” mean? 一本书起初厚重厚实，但随着你对其理解加深，书页便会变得越来越薄。 Presentation Discuss and say What do you think of Hua Luogeng？ I think Hua Luogeng is a strong-willed and hard-working person. Though he dropped out of high school, he never gave up learning maths. He also stayed positive when facing difficulties in study and life. What can you learn from him? We should keep learning and never give up even if we meet hard situations. We need to stay positive when we face troubles in study. We can use good learning ways like taking notes and summarizing key points. We should deal with our study problems step by step. Presentation 4c Discuss and say Complete the passage with the correct sentence parts. Then discuss whether you would like to try the learning method suggested. Methods Stay positive when facing difficulties and learn things step by step. Teach himself by studying maths books. Read textbooks very carefully, take careful notes and summarize key points after reading. Group work:（4 students per group/5minutes) Discussion (5 mins) Everyone speaks at least 2 sentences with that / whether / if. Sentence frames: I think that… / I wonder whether… / I want to know if… Presentation Share and check Sharing: Each reporter gives a 1-minute talk: introduce learning methods + group opinions. Show time: Evaluation Standards Score(满分10分） 1. Speak loudly and clearly. ☆☆☆ 2. Speak fluently. ☆☆☆ 3. Use object clauses with that / whether / if correctly. ☆☆☆ 4. List all Hua Luogeng’s learning methods and give clear personal opinions. ☆☆☆ 5. Present with confidence and keep eye contact with classmates. ☆☆☆ Total Score ☆☆☆ Presentation Share and say Good morning, dear teachers and classmates. Our group will share our findings and opinions. First, the learning methods from the passage: Hua Luogeng taught himself by studying maths books. He advised learners to read carefully, take notes and sum up key points. He thought people should face difficulties positively and learn step by step. Next are our ideas with object clauses: We all think that taking notes and summarizing points is a great study habit. Some members wonder whether we can stick to this method every day. We want to know if this way can also help us learn English better. To sum up, our group decides that we will try part of his learning skills in daily study. That’s all. Thank you! Example: Presentation Look and say Presentation Class test 一、完成句子 1. 我想知道你是否喜欢这本书。 I _________ ____________you like this book. 2.他不确定他是否能免费下载这首歌曲。 He isn’t sure __________ he can ____________the song for free. 3.老师告诉我们太阳从东方升起。 The teacher told us ________the sun ________in the east. 4.我恐怕我不能帮你了。 I ________ ________ ________I can’t help you. wonder  if/whether if/whether download that  rises am afraid  that 5. Will he donate money to poor kids? I wonder.（合并为宾语从句） I wonder ____________he ________donate money to poor kids. 6．“Does he like the movie?” Lisa asked. (改为宾语从句) Lisa asked ___________ ________ ________the movie. 7．“Are you doing your homework?” Mom asked me. (改为宾语从句) Mom asked me ___________ I ________ doing my homework. whether/if  will whether/if he liked whether/if was Presentation Class test 二、短文填空 Taking notes is a good way to help with your schoolwork. But unluckily, most students don’t know    1      to take notes. The following can help you. If your teacher writes notes on the blackboard, that’s great. Because of time, you can write down the most important instead of      2     (copy) everything. Different teachers do things      3     (different). For example, some teachers only write the important notes on the blackboard. Other teachers may not write anything down, but they may repeat the important points. So don’t try to write down every word in class, or you      4      (miss) some important points. Some students really learn better with the help of these notes. Don’t be afraid to ask your teacher 5      (repeat) what you missed. If your teacher speaks too fast, ask      6     (he) after class.Comparing your notes      7     your classmates’ can be good for your learning. It can also help you and your classmates correct some mistakes. Taking notes also needs      8      (organize). Keep notes for each subject in one place, so that you can find everything easily when      9      test comes. Taking notes well takes time. If you decide to arrange (整理) your notes every evening, you’ll surely have      10      (much) time than usual to watch TV. But you’ll save time in the coming test. how copying differently will miss to repeat him with organization a less Presentation Must do: 1.Copy and recite 10 key phrases and 4 core sentence patterns of this class, finish Chinese-English translation. 2.Complete the grammar cloze passage about Hua Luogeng and mark all object clauses with that / if / whether. Choose to do: Write 4 sentences (2 with that, 2 with if/whether) about Hua Luogeng’s spirit. $嗨上个视频我讲了宾语从句的that做引导词以及连接代词的用法。这个视频来看第三种，看下面这组例句，i don't know when he leaves, 我不知道他什么时候离开的。后一问，从句就变成he lives van，he leaves, 什么成分都不缺，when只为了说明他在什么时间离开的，所以when就做从句中的时间状语，i don't know where he goes, 我不知道他去哪儿了。后1 where，从句就变成he goes，where he goes, 什么成分都不缺少，where只为了说明他去哪里的地点，所以where就做从句中的地点状语。I don't know why he leaves, 我不知道他为什么离开后羿。Why从句就变成he leaves，why he leaves什么成分都不缺少，why只为了说明他为什么离开的原因，所以why就做从句中的原因状语。I don't know how he finds her, 我不知道他怎么找到他后一how从句就变成he finds her hell，he finds her, 什么成分都不缺少，how只为了说明他如何找到它的方式，所以how就做从句中的方式状语，像when、何时、威尔和第、why、为什么、how、如何等。后移后，在从句中做状语的引导词成为连接副词，但是他们有自己的意思。另外还有两个连接副词，翻译成是否if。Weather表示一种询问语气，但是weather可以单独使用，也可以和or not连用，而if不能，例如，he asked me if miss gow was a teacher, 或者he asked me whether my goal was a teacher，或者he asked me whether miss cow was a teacher or not。她问我高小姐是否是一位老师。再比如，我不知道明天是否下雨，可以写成i don't know if whether IT will rain tomorrow OK这个视频的内容就结束了。下个视频我们再讲宾语从句的另外两个考点，时态和语序问题。回顾一下这个视频和上个视频主要讲的宾语从句引导词。第一，that没有意义的引导词。第二，连接代词，what, 什么，whose谁，whose谁的which哪一个whose谁等。第三，连接副词，when, 何时，where, 何地，why, 为什么，how, 如何，if, 是否weather是否。快去巩固练习。Oh耶。 我们知道weather当是否讲很多情况下它等于if是否的意思。但是在下列三种情况下，只能用whether，不能用if。在动词不定式之前只能用whether。比如说i can't decide whether to stay，我不能够决定是否留下来。这里weather用在了to stay不定式之前，只能用weather OK。那么第二种情况，在介词之后只能用whether不能用if。比如说my . parents are worried about whether i've passed the exam. 我的父母亲担心我是否通过了考试。这里面的weather用在了about这个介词之后，只能用wether不能用F第三种情况，引导主语从句的时候，这个主语从句放在句首，这时候只能用whether，不能用if。比如说whether we can finish the work on time is steal a problem。我们能否按时完成工作还是个问题。这里面whether引导的是主语从句放在了句首，只能用whether，不能用if you got IT。 主公宾语从句是个什么东西？宾语从句就是主谓宾里的缤变成了一个完整的句子。宾语是怎么变。句子的呢？I know you, 我知道你这就是一个主谓宾句型，我是主语，知道是谓语，你就是宾语。那如果我想说，我知道你是个傻子，你是个傻子不就是一句话吗？这时候就会用宾语从句来表达，i know that you are food. 这个that是哪个单位的？这个that叫引导词。宾语从句前面一定要有一个这样的东西，这里的that不要翻译成那个，它在从句当中没有任何意思。我明白了。 Ah you can tell a piece a boy or a girl. It's long. Do I know where around the. 叶子落了。And I don't know if I can believe when shadows from and black my own I am working on. 叶子老了。So I find my way home many days I spend drifting on the wap. 我what I was wondering how to make me。But I know, all right, I know about this摆满伞。掩盖你的闭口。 今天我们要学习宾语从句的语序。首先宾语从句里面如果是疑问句的话，它的语序都要变成陈述句语序。我们先来看一般疑问句，一般疑问句就要用if或者whether来连接。我们来看例句，are you a teacher? 如果放到he ask后面做宾语从句，这时候就要用if或者whether来连接。同时要特别注意原来的RU要变成陈述句语序UR因为主句是过去式S所以这里的二要变成were，这样就完成了变化。 We still don't know if there are any demons on this mountain. Go a luo, again known as the father of modern chinese medics, was an active learner. Even though he only had a junior high school education, he told himself and made great breakthrough s in many areas of math. With deep love for his country, he gave up good opportunities abroad twice and came back to china. There, he LED teams to make important contributions to china's two bombs and one satellite project. His spirit of active learning and praise m is truly inspiring.