Unit 5 Working the Land Learning About Language课件-2026-2027学年高中英语人教版选择性必修第一册

该高中英语课件聚焦词汇转换（词形变化、屈折）与主语从句（连接词、形式主语等）核心知识，以袁隆平案例为导入，通过词汇替换、句子填空到语篇应用，语法从识别功能到匹配翻译，搭建递进式学习支架，衔接前后知识脉络。 其亮点在于融合农业科学主题，通过分析袁隆平等科学家品质渗透文化意识，小组讨论评价创新 farming 模式培养思维品质。词汇语法练习梯度分明，如“tackle”替换、主语从句语篇分析，助力语言能力提升。学生能深化理解，教师可直接应用活动设计，提高教学效率。

Learning About Language Unit 5 Working the Land PART. 01 Learning Objectives Learning Objectives Grasp word formation and inflection to finish vocabulary transformation tasks. Identify and summarize the uses of subject clauses, and use subject clauses to talk about what qualities make a person so successful. Understand the value of agricultural scientific research for global food supply, and recognize the dedication spirit of outstanding Chinese scientists. Analyze the key qualities behind scientists’ career success, evaluate pros and cons of innovative farming modes, and paraphrase sentences to deepen language comprehension. Summarize vocabulary rules from texts, cooperate in group discussion activities, apply learned grammar patterns to create original sentences, and use provided expression frames to structure presentation outputs. 3 Teaching Focuses and Anticipated Difficulties Master word transformation and the usage of subject clauses, and practice making sentences and speeches with target grammar structures. Figure out important qualities for successful scientists and judge good and bad sides of new farming methods with proper sentence rewriting. 4 PART. 02 Build up your vocabulary Replace the underlined words with the correct forms of the words from the text. 1. To deal with this crisis, he chose to study agriculture. 2. He is a very good actor and he commits himself to every role that he takes on. 3. Yuan Longping strongly believed that the answer could be found in the creation of hybrid rice. 4. Yuan Longping, through intense effort, solved enormous difficulties and developed the first hybrid rice that could be used for farming. 5. This hybrid enabled farmers to increase their output greatly. 6. Students are encouraged to try a variety of free-time activities to reduce the intense stress from studying. devotes tackle was (strongly) convinced overcame expand leisure 6 Complete the sentences with the correct forms of the words from the text. Then use these words to make your own sentences. 1. The c____________ of a person are the special qualities that make him or her different from others. 2. Scientists from different countries have been pursuing various possibilities to overcome food s_______. 3. Many of us a________ that earthquakes would never happen in our area. 4. With more and more farm machines being used in the fields, the c____________ of fuel has been increasing. 5. Newspapers should pay less attention to media c_________ and more attention to our national heroes. 6. Our general manager tried his best to help overcome the difficulties we were facing during the financial c________. 7. My mother is very c___________ and finds it hard to accept the modern lifestyle that I enjoy. 8. The government has decided to boost the programme to g________ more new jobs. hortage haracteristics ssume onsumption risis elebrities onventional enerate 7 Complete the news report below with the correct forms of the words and phrases in the box. A vast underground shelter built during World War II has been turned into an urban farm, supplying supermarkets and restaurants in London. The shelter, which could protect up to 8,000 people from wartime bombs, _______________ two large tunnels that were intended to one day become an extension of the London Underground. But that never became _____ and the shelter was left for 70 years. Then businessmen decided to make use of it to grow green vegetables to meet increasing _____________ demands. The tunnels are lit with pink LEDs as there is no natural light ___________ below the ground. The vegetables are grown in special liquids instead of the earth that is used as in ____________ farming. Many experts share a _________ that this kind of urban farming could help not only in _________ the problem of population growth, but also in adapting to climate change. tackle vision conventional deep down be comprised of reality consumption real is comprised of consumption conventional deep down vision tackling 8 PART. 03 Discover useful structure Look at the complex sentences below and state the functions of the noun clauses italicised. What Yuan Longping really cared about was not money or celebrity. That Yuan Longping had realised his dream of seawater rice surprised the whole world. It surprised the whole world that Yuan Longping had realised his dream of developing seawater rice. subject subject subject 10 名词性从句是指在复合句中充当名词功能的从句，相当于一个名词或名词短语。名词性从句可分为主语从句、宾语从句、表语从句和同位语从句。 一、概述 主语从句是指在复合句中充当主语的从句，相当于一个名词的功能。它常位于句首（或用形式主语 it 代替，避免句子头重脚轻）。主语从句必须用陈述句语序。 What we learn in class is important. 我们在课堂上学的东西很重要。 二、连接词及句法功能 从属连词：在从句中不作成分 连接代词：在从句中作主语、宾语、表语或定语 连接副词：在从句中作状语 Subject clauses (主语从句) 11 1. that, whether, if that在句中不充当任何成分且无词义，只起连接作用，不可省略。whether / if 不充当句子成分，仅为连接作用，意为“是否”。 if 不可引导位于句首的主语从句。 That she passed the exam surprises everyone. 她通过了考试，这让所有人都惊讶。 Whether we will go hiking depends on the weather. 我们是否去徒步取决于天气。 It is still doubtful whether/if she will play the role. 她是否要演这个角色还很难说。 2. who, whom, whose, what, which, whoever, whatever, whichever等 连接代词引导主语从句时，在从句中作主语、宾语、表语或定语，有实际意义。 What he said at the meeting was meaningful. 他在会上说的话很有意义。 Whoever breaks the rules will be punished. 任何违反规则的人都会受到惩罚。 Whom we should invite to the opening ceremony is a tough question. 我们该邀请谁参加开幕式，是个棘手的问题。 12 3. when, where, why, how 连接副词引导主语从句时，在从句中作状语，有实际意义。 When the concert will start is not announced yet. 音乐会何时开始尚未公布。 How we can solve the problem is a big challenge. 我们如何解决这个问题是个大难题。 注意：确定名词性从句引导词的步骤： （1）分析句式结构，明确名词性从句在句中的功能； （2）明确名词性从句所表达的意义； （3）明确名词性从句中所需要的成分； （4）确定名词性从句的连接词。 13 三、形式主语 it 的用法 当主语从句较长时，为避免句子头重脚轻，常用it 作形式主语，将真正的主语从句置于句末。 1. It + be + 形容词 + that 从句（常见形容词：important, necessary, clear, obvious, strange, natural 等） It is necessary that we learn subject clauses well. 我们学好主语从句是必要的。 2. It + be + 名词短语 + that 从句（常见名词短语：a fact, a pity, a shame, an honor, a secret, no wonder 等） It is a pity that you missed the lecture. 你错过了讲座，真遗憾。 3. It + be + 过去分词 + that 从句（常见被动结构：said, reported, believed, known, proved 等） It is reported that the number of wild tigers is increasing. 据报道，野生老虎的数量正在增加。 14 4. It + 特殊动词 + that 从句（常见动词：happen, occur, seem, appear, matter 等） It happened that I met my old friend on the street. 我碰巧在街上遇到了我的老朋友。 注意：含形式主语的句子变否定时，否定词需放在 be 动词 / 实义动词前。 四、主谓一致 1. 从句作主语时，主句的谓语动词一般用单数形式。 Why he did that is still not clear. 他为什么那么做还不清楚。 What I need to do next is just to work hard. 我下一步要做的就是努力工作。 2. 如果由 and连接两个或两个以上的主语从句作主语时，谓语动词用复数；由两个或多个连接词引导一个主语从句时，谓语动词用单数。 When they will start and where they will go have not been decided yet. 他们将在什么时候动身以及要去哪里还没定下来。 When and where the movie will be shown is not clear. 这部影片何时何地上映还不清楚。 15 五、区分主语从句和强调句 1. 去掉结构词判断：对于强调句，去掉“It is/was... that/who” 结构，句子仍然成立，只是意思不如原来突出强调某一成分；而主语从句去掉引导词后，句子则不完整。 原句：It was Yuan Longping that helped China solve the rice shortage problem. 去掉框架：Yuan Longping helped China solve the rice shortage problem. 句子完整、语法通顺 → 强调句 2. 替换判断：强调句中“It is/was... that/who结构可以用其他强调方式替换，如用“do/does/did + 动词原形”来强调谓语动词，句子意思基本不变；而主语从句不能用这种方式替换。 It was Yuan Longping that created hybrid rice. 改写强调谓语（用 did）：Yuan Longping did create hybrid rice. 16 Then find similar complex sentences from the text. However, what concerned him most was that farmers often had poor harvests and sometimes even had a serious shortage of food to eat. How this could be done was a challenging question at the time. However, whether it was possible to develop a hybrid of self-pollinating plants such as rice was a matter of great debate. What impressed people most about Yuan Longping was his ongoing ability to fulfil his dreams. 17 Match the sentence parts, and then translate the completed sentences into Chinese. Pay attention to how the subjects are introduced differently. D C A E B 18 Match the sentence parts, and then translate the completed sentences into Chinese. Pay attention to how the subjects are introduced differently. 1. When these wheat farmers will join this pilot experiment remains an unanswered question. 这些小麦农户什么时候会加入预试验仍然不得而知。 2. How we can find a suitable solution to produce sufficient food while keeping the environment safe is an important topic for us to research. 如何能够找到一个合适的解决办法，在保证环境安全的同时，生产足够的粮食，是一个需要我们研究的重要课题。 3. What worries many people is that these chemicals may even cause cancer. 令很多人担心的是，这些化学制品甚至可能导致癌症。 19 Match the sentence parts, and then translate the completed sentences into Chinese. Pay attention to how the subjects are introduced differently. 4. It amazed all of us that these vegetables can even be planted without any soil through this new technology. 令我们所有人惊讶的是，通过这种新技术，可以无土栽培这些蔬菜。 5. That the lifestyle is slower and healthier is the reason why some people prefer to live in the country rather than in the city. 有些人更喜欢住在乡下而非城市的原因是前者生活节奏更慢、生活方式更健康。 20 Read the passage and underline all the subject clauses. Then in pairs, discuss whether the sentences with subject clauses can be paraphrased. Grandma has been complaining about the vegetables sold in the supermarket, which have been grown using chemical fertilisers. To her, that they look beautiful on the outside is obvious. However, what she is unhappy about is the lower nutritional value and reduced flavour. Now that both of my grandparents have retired from their jobs in the city, how they are going to spend their retirement is an important decision for them. Whether they can live a healthy life is the first thing they are considering. So they have made up their minds to move to the countryside, where they can live a green life. 21 What qualities do you think make a person like Yuan Longping so successful? Work in groups. Have a discussion and prepare a presentation. The following points and expressions may help you. his/her determination to tackle the crisis of... his/her intense effort to overcome... his/her dream to develop... his/her love and care for... he/she succeeded in... he/she never gave up... he/she is devoted to... What impresses me most is that ... What makes him/her a great ... is that ... It is important that ... Whether ... depends on ... That ... is his/her most important quality. 22 What qualities do you think make a person like Yuan Longping so successful? Work in groups. Have a discussion and prepare a presentation. The following points and expressions may help you. What impresses me most is that Yuan Longping has succeeded in helping to feed so many people. It is important that he never gave up, despite many difficulties. That he succeeded in realising his dream is what makes him great. 23 PART. 04 Exercise 1. _________ we value traditional culture or ignore it will shape our cultural identity in the long run. 2. It remains to be seen __________ the new chemical pesticide is effective. 3. _______ makes organic farming popular is that it produces healthy food without harmful chemicals. 4. _____ excites me the most is that young people today are digital citizens who are comfortable with technology. 5. _________ deliberately breaks the law and harms the interests of the public will sooner or later be caught and severely punished. 6. _______ different crops are grown is that they put important minerals back into the ground, making it ready for the next batch of crops. Whether whether/if What What Whoever Why 语法填空 25 7. _______ some less-developed countries are suffering from food shortages is a serious problem in the world. 8. Now it occurred to him ______ his farm had much potential and that the death of the cow was a bit of luck. 9. _______ the ancient people built the pyramids in the past with primitive tools puzzled people for centuries. 10. _______ made the teacher feel satisfied was that his students were becoming more and more confident in learning. 11. Exactly _______ the potato was introduced into Europe is uncertain, but it was probably around 1565. That that How What 语法填空 when 26 PART. 05 Summary Learning About Language Build up your vocabulary Discover useful structure 主语从句 概述 形式主语 it 的用法 连接词及句法功能 Grasp word formation and inflection to finish vocabulary transformation tasks. 主谓一致 区分主语从句和强调句 28 PART. 06 Homework Summarise what we have learnt in this lesson; Prepare for the next lesson. 30 See you next class! $