Unit 5 Working the Land Discover Useful Structures 主语从句课件-2025-2026学年高中英语人教版（2019）选择性必修第一册

该高中英语课件聚焦主语从句，通过英文歌曲（如Adele《Someone like you》、《As long as you love me》）歌词填空与分析导入，衔接简单句、复合句知识，构建从词变、句子成分到主语从句的学习支架。 其亮点在于情境化导入与结构化讲解结合，以“缺什么补什么”原则、主谓一致规律及形式主语it用法培养思维品质，巧记口诀提升学习能力。例句含中英文对比、练一练环节，助学生直观理解，教师可高效开展语法教学，学生语言能力与学习效率同步提升。

Unit 5 Working the land 主语从句 I heard that you're settled down that you found a girl and you're married now I heard that your dreams came true Guess she gave you things I didn't give to you ——Adele Someone like you As long as you love me Although loneliness has always been a friend of mine, I'm leaving my life in your hands. People say I'm crazy and ______ I am blind. Risking it all in a glance. ______ you got me blind is still a mystery. I can't get you out of my head. Don't care ______ is written in your history. As long as you're here with me. I don't care _____ you are. _____ you're from. _____ you did. As long as you love me. that How what who where what 句子 类型 简单句 并列句 复合句 主句 形容词性从句 (定语从句) 名词性从句 副词性从句(状语从句) 主语从句 宾语从句 表语从句 同位语从句 从句 Definition and types: Dogs scared me. dogs chased me 狗子吓到我了。 狗子追我吓到我了。 主 谓 宾 词变 句子 scared me. That 主语从句 1.什么是主语从句? 定义：如果一个从句在句子中担当主语，那么这个从句就是主语从句。主语从句通常放在主句的谓语动词之前，有时也由形式主语it代替，而本身放在句子末尾。 That you love me is important. Whether you love me is important. Why you love me is important. It is important why you love me. 思考： 主语从句的连接词有哪些？分别有什么功能？ 找出下列句子中的主语从句 2. 主语从句的引导词 类别 例词 说明 从属连词 that，whether/if 两者在从句中均不作成分，只起连接作用；that无实义，whether表示“是否”。 连接代词 who，what，which，whoever，whatever等 在从句中作主语、宾语、表语、定语等成分。 连接副词 when，where，how，why等 在从句中作时间、地点、方式、原因状语等成分。 从属连词:占位词 That you love me is important. Whether you love me is important. 你爱我是重要的。 你是否爱我是重要的。 that _______成分，____意义，______省略。 whether _____成分，____意义，译为_____。 只用whether: 句首/+or not/ +to do 不做 是否 无 不能 不做 有 连接代词 What he said was right. Who did it is unknown. 他说的是对的。 不知道谁做的这件事。 不知道他将会选哪个俱乐部。 Which club he will choose is unknown. who在主语从句中充当 ______,译为 ______。 what在主语从句中充当 ______,译为 ______________。 which在主语从句中充当 ______,译______。 主语 谁 宾语 ...东西/...样子 定语 哪一 When the bomb will explode worries the man. Where she is from is unknown. Why he was late is not important now. How he attained success is unknown. when 在主语从句中充当 _______, 译为 ______。 where在主语从句中充当 _______, 译为 ______。 why 在主语从句中充当 _______, 译为 _______。 how 在主语从句中充当 _______, 译为 _______。 结论： 状语 何时 状语 何地 状语 为什么 状语 怎样 连接副词 功能 连接词 不作成分 that, whether 作主、宾、表、 what, who, whom, wh+ever 作定语 which 作状语 when, where, why, how Usage of the Conjunctions 缺什么补什么 学法指导 依据“缺什么补什么”原则确定正确的连词。 所谓“缺什么补什么”是指从句与连词之间的关系。 如果句子中缺主语，指人用who，指物用what。 如缺宾语，指人用whom/who，指物用what。 如缺时间状语用when；地点状语用where。 原因状语用why；方式状语用how。 如缺定语用which。 如什么都不缺用that，Whether表“是否”。 探寻规律1： 主语从句 主谓一致 问题 1. Whether the patient will be taken ______ unknown. 2. When and where the patient will be taken _____ unknown. 3. When the task can be finished and whether he can have a rest ________ unknown. 4. What he wants most _________ staying with his family. What they need _______ masks(口罩). 主句的谓语动词，大多数使用_______ (单数？复数？) 由两个连接词引导同一个主从，谓动使用____ (单数？复数？) 主语为and连接的两个主从时，谓动使用____ (单数？复数？) what在主从中做宾语时，谓动由______决定单复数 (主语？表语？) 单数 单数 复数 表语 is is are is are 主语从句应使用_________语序。 1. Where we will have a picnic should be discussed. Where will we have a picnic should be discussed. 2. How we go for a picnic should be discussed. How do we go for a picnic should be discussed. Rule 3 陈述句 √ √ × × 探寻规律2： 主语从句的语序 15 That all countries work together is important. 探寻规律3： 主语从句太长怎么办？ 用一个 It 来解决问题！ It is important that all countries work together. It＋be＋形容词/名词短语/过去分词/不及物动词＋ that从句 It is certain that the medicine will not bring about side effect , because thousand of patients have taken it. 形容词(necessary/likely/important/certain等 名词(短语)(a pity/a shame/no wonder等) It is a pity that you missed such a good chance. It’s said that he has gone to Shanghai. 过去分词(said/told/reported等) It appears that he is worrying about something 不及物动词(seem, appear, happen, matter等) 1) It is /系动词+ adj. +从句 常见的形容词有： 　 It is possible that... 可能…… 　 It is (un)likely that... 不可能…… It is obvious that… 很明显… It is necessary/ essential/... that… _________________(可能)she will come back tomorrow. _______________ (很明显)this measure is effective. +(should) +do… It is possible that It is obvious that 2) It is /系动词+ n. +从句 　 It is a pity/shame that... 遗憾的是…… 　 It is a surprise that…令人惊奇的是… 　 _______________(很遗憾) we lost the match. ______________ (这是事实) he cheated in the exam. It is a pity that It is a fact that 3) It + be +过去分词+从句 It is said/told/heard that... 据说…… It is well known to all ... 众所周知…… It is reported/announced ... 据报道…… It is estimated... 据估计…… 　 *_________________(据报道)20 people were killed in the accident. * It is reported that 4) It +不及物动词+从句 It happened that... 碰巧…… It occurred to me that…我突然想起… It seems/ appears that ... 看起来... *________________(刚好)I came into the office at that time. *____________________(我突然想起)I forget to send the letter. It happened that It occurred to me that Ⅰ.单句填空 1.　　　　     is strange that the man should have stuck to his silly ideas. 2.It is a pity 　　　　     we won't be able to go to the south to spend our summer vacation. 3.　　　　    caused the accident is still a mystery. 4.　　　　     is said that he has gone to Shanghai. (=He is said to have gone to Shanghai.) 5.It is known to all 　　　　     gunpowder was first invented by the Chinese. It that What It that 巧记主语从句 整句作主语，其后单谓语 莫忘加连词，that不略但无义 “是否”置前用whether,其他应用靠翻译 主语从句可后置，只需形式主语it把它替 定 义 主语从句 引导词 形式主语 主谓一致 总 结 作用，位置 从属连词，连接代词，连接副词 单个主语从句-单数 多个主语从句-复数 It＋be＋形容词/名词短语/过去分词/不及物动词＋ that从句 语序 陈述语序 【练一练】 1. _________she left him made him heart-broken. 2. _________ he is still alive is a piece of good news to us. 3. _________ he will come or not is not known yet. 4.___________his family would support him made him worried. 5. It doesn’t matter ________ your home is in a noisy downtown or in the remote countryside. 6. It’s uncertain __________ the experiment is worth doing. 7. ________ seat belts save lives has been proven. That That whether whether 从属连词 （不做成分） that, whether Whether Whether That 【练一练】 1. More than 100 students have entered for the competition, and ____________ gains the most points will be the winner. 2. _______ bothers me is that I can’t keep my mind on the task, but on personal gains or losses. 3. ___________ has happened before or is happening now will repeat itself in the future. 4._______ seems easy to some people seems difficult to others. whoever What Whatever 连接代词 （作主语，宾语，表语） What what, who, whom, whose, which, wh+ever 【练一练】 1. Exactly _________ the potato was introduced into Europe is uncertain, but it was probably around 1565. 2. _______ the delayed flight will take off depends much on the weather. 3. It remains a puzzle _____ dinosaurs died out suddenly long time ago. 4. ______ the earth is becoming warm is a good topic for research. when When why Why 连接副词 （作状语） when, where, how, why Thank you Someone Like You Adele 21 Blues 285329.4 Other 60857.76 $