Unit 5 Working the Land Discover useful structures 课件-2024-2025学年高中英语人教版（2019）选择性必修第一册

Unit 5 Working the land Discovering Useful Structures 句子类型 简单句 并列句 复合句 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 句子类型 However，what concerned him most was that farmers often had poor harvests and sometimes even had a serious shortage of food to eat. However，whether it was possible to develop a hybrid of self- pollinating plants such as rice was a matter of great debate. Today，it is estimated that about 60 per cent of domestic rice consumption in China is comprised of crops generated from Yuan’s hybrid strains，... What impresses people most about Yuan Longping is his ongoing ability to fulfill his dreams. 以上加颜色部分在句中作 。 1句和4句中的what在从句中作 。 2句中的whether意为“ ”。 3句中的it是 ，真正的主语是后面的 。 主语 主语 是否 形式主语 that引导的从句 主语从句 1.Who will take part in the meeting has not been decided. 2.Whom they will choose is a secret. 1.What surprised me is the gift from my sister. 2.What you have done might do harm to others. 3.What his phone number is still unknown to me. 当主语从句_______，_____主宾表时，使用连接词who，whom, 译为 ______。 缺少 谁 主语从句不完整时：who whom what 不完整 当主语从句_______，_____主宾表时，使用连接词what, 译为 _________________________。 不完整 缺少 什么..的东西/事/样子 1.That he will pass the exam is certain. 2.Whether he will pass the exam is uncertain. 3. Whose scores are higher will come out soon. 4. Which book I shall choose hasn’t been decided. that _______主宾，____意义， ______省略。 whether _____主宾，译为_____ whose在主语从句中做____，译为 ______。 which在主语从句中做____，译为 __________。 不做 是否 无 不能 不做 that whether whose which 定语 谁的 哪一个 定语 1. When they will start is not known yet. 2. Where she is from is unknown. 3. Why he was late is not important now. 4. How he became a great scientist is known to us all. 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 ________。 时间状语 何时 地点状语 何地 原因状语 为什么 方式状语 如何/怎样 when where why how 1. However, 　　　　  concerned him most was 　　　 farmers often had poor harvests and sometimes even had a serious shortage of food to eat. 2. 　　　 this could be done was a challenging question at the time. 3. However, 　　　　     it was possible to develop a hybrid of self-pollinating plants such as rice was a matter of great debate. 4. Today, 　　   is estimated 　　　  about 60 percent of domestic rice... 5. 　　　  impresses people most about Yuan Longping is his ongoing ability to fulfil his dreams. what that How whether it that What 课文原句回顾 Why he didn’t come ______ unknown. When and where he will go _____ unknown. 单个主语从句做主语，主句谓语动词用_______ 。 由两个连接词引导同一个主从，谓语动词用______。 单数 单数 is/was is 注意：主语从句的主谓一致 3. What he said and what he did ________ different. 4. What I want ____ time. What I want _______ three books. 主语为and连接的两个或两个以上主从时，谓语动词用______。 what引导的主语从句，主句（主系表）谓语的单复数与做______的名词的保持一致。 复数 表语 are is are 1). What he wants to do_______(be) to have a good rest. 2). Whether it will rain or not_____(be) not clear. 3). That he has won so many awards_____________( surprise) us. 4). When he left us and why he did that _______(remain) unknown to us. 5). How and why he came to this city ______ a story of struggle and success. is is surprises remain Practice is/was 9 1. That the earth moves around the sun is well known. It is well known that the earth moves around the sun. 2. That she has made such a mistake is a pity . It is a pity that she has made such a mistake. 主语从句一般放在句首,但有时为了保持句子结构平衡,避免免“头重脚轻”,常用 it 作形式主语, 而把真正的主语从句放在后面。 注意：it 作形式主语 1．What they want at present are (be) basic skills for survival in the wild. 2．That people cut down too many trees destroyed the balance of nature. 3．It is desirable that we should read the instructions of the instruments in advance. 4．Whether we can live a healthy life is the first thing we are considering. 5．It was amazing how quickly I could get there—just half an hour. 6．Whose fault it is is quite clear now. 7．When she will come back to school depends (depend) on her mother. 8．What worries most of us is that the chemicals may even cause cancer. 9．Who will win the match is still unknown. are That It Whether how Whose depends What Who 10．It's important that children (should) have (have) their own hobbies and interests. 11．It is hard to imagine what life was like for her at that time. 12．Whichever one of you breaks the window will have to pay for it. (should) have what Whichever Practice 1. [2020·全国Ⅱ卷] It’s been reported 76％ employees in some western countries are using emojis（表情符号）at work. 2. [2013·北京卷] makes the book so extraordinary is the creative imagination of the writer. 3. [2015·北京卷] we understand things has a lot to do with what we feel. 4. [2016·北京卷] Your support is important to our work. ___________you can do helps. 5. [2017·北京卷] Every year, makes the most beautiful kite will win a prize in the Kite Festival. that What Practice How Whatever whoever Rewrite the sentences using subject clauses. Example: I’d like you to find out how new technologies can increase grape production in Binchuan county. What I’d like you to find out is how new technologies can increase grape production in Binchuan county. (P90 Ex1) Practice We wanted to know where he had lost the laptop. Where ___________________ was what we wanted to know. he had lost the laptop The way in which he did the experiment was puzzling to other people. How __________________ was puzzling to other people. he did the experiment Practice Do they use too many chemical pesticides? I worry about this most. they use too many chemical pesticides People are happy to see that the living conditions and income of the farmers have improved a lot. Practice Whether _______________________________ is what I worry about most. That ____________________________________________ ____________ makes people happy. the living conditions and income of the farmers have improved a lot We have not decided on the date for the sports meet yet. When ______________________ has not been decided on yet. the sports meet will be held Practice Match the sentence parts. (Page. 53 Activity.2) _______ remains an unanswered question. _______ is an important topic for us to research. _______ is that these chemicals may even cause cancer. _______ these vegetables can even be planted without any soil through this new technology. _______ is the reason why some people prefer to live in the country rather than in the city. What worries many people That the lifestyle is slower and healthier. How we can find a suitable solution to produce sufficient food while keeping the environment safe. When these wheat farmers will join this pilot experiment. It amazed all of us that D C A E B Practice 17 Thanks! for instance alternative widespread extension vision leisure generate comprise consumption expand overcome attain boost tackle devote to 例如 选择，可替代的 广泛的，普遍的 外延，扩大 视觉，想象 闲暇，休闲 生成，产生，引起 包括 消费，消耗 扩大，增加 克服 达到，得到，获得 提高，增长，兴旺 解决，应付，处理 致力于，把献给，专心于，投入于 characteristic in turn digest bomb nutrition intense for instance alternative widespread extension vision leisure generate comprise consumption 特征;特点；品质；典型的；独特的 反过来；相应地；转而；依次；轮流 消化；领会领悟 炸弹；轰炸 营养；滋养 强烈的；热切的 例如；比如 选择，可替代的 广泛的，普遍的 外延，扩大 视觉，想象 闲暇，休闲 生成，产生，引起 包括 消费，消耗 $$