Unit 5 Working the Land Discover Useful Structures 主语从句课件-2024-2025学年高中英语人教版（2019）选择性必修第一册

新人教版选修一 Unit 5 Discover Useful Structures Subject clauses Learning Objectives At the end of the class, you will be able to : ① know the definition of subject clause; ② identify and summarize the uses of noun clauses as subjects; ③ use conjunctions(连接词) of subject clause properly according to the context. 主语从句定义 主语从句连接词 主语从句注意事项 巩固练习 Contents 1 2 3 4 主语从句定义 Part 1 英语句子三大分类 1. 简单句 2. 并列复合句（并列句） 3. 主从复合句（复合句/复杂句） 简单句：S V = 1 无法拆分 并列句：S V ≧ 2且由并列连词连接 不分主次 主从复合句：S V ≧ 2且由从属连词连接 主句+从句 从属连词： that, which, what, when, where, why, how, whether, if, because, since, although, whatever, however. 并列连词：并列连词主要是用来表示并列关系、转折关系、选择关系、因果推理关系等。 and , but, or, so , both... and, as well as, neither ... nor 定语从句 状语从句 主语从句定义 1. 找出下列句子的主语。 1. Jim is good at playing the piano. 2. To see is to believe. 3. Smoking is bad for health. 4. What he has said is true. 在主从复合句中充当主语的从句就是主语从句, 它是名词性从句的一种。位 置: 主句谓语 或 系动词之前。 2. 课文原句回顾。 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 主语从句连接词 Part 2 That she will come matters. Whether she will come doesn’t matter. It is still doubtful whether/if she will play the role. 从属 连词 that _____成分，___意义，____省略。 whether/if ____成分，__意义，译为_____。 从属连词引导主语从句只起引导作用，在主语从句中不充当任何成分。 不做 是否 无 不能 不做 有 1. 从属连词： that、whether 、 if Who will hold the meeting matters little. What he said made us believe that he was a generous man. Which book I shall choose hasn't been decided. Whoever made mistakes on purpose shouldn’t be spared from criticism. Whatever I have is yours. 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 _______, 译为 _______。 whoever在主语从句中充当 _______, 译为 _______。 2. 连接代词: who、whoever、whom、whose、what、whatever、which、whichever 宾语 什么 主语 谁 主语 无论谁 定语 哪一个 连接 代词 *who引导的主语从句表示一件“事情”，而whoever引导的主语从句指“人”。 When we will leave hasn't been decided. How she keeps healthy is a secret. Why he didn’t appear confused us all. Where the meeting will be held is not known. 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 _______。 3.连接副词：when、where、how、why 连接 副词 状语 什么时候 状语 哪里 状语 为什么 状语 怎样 “缺什么补什么”原则 缺主语，指人用_________，指物用______ 缺宾语，指人用_____________， 指物用________ 缺时间状语用______； 地点状语用______； 原因状语用_____； 方式状语用_____； 定语用______________。 什么都不缺用_______，缺“是否”_______ who(ever) what(ever) who(ever)/whom what(ever) when where why how which/whose 主语从句的连接词 that whether/if 语境运用《导与练》P138 单句语法填空 ①　　 　　 comes first will get a present.  ②　　　 　 they will get married or not is still uncertain.  ③　 　 worries the mother is whether his son will adapt to the changing world.  ④　　　 　 he broke into my house remains a question,for the door was locked then.  Whoever Whether What How 主语从句注意事项 Part 3 1. 主语从句太长怎么办？ That all countries work together is important. 用一个 It 来解决问题！ It is important that all countries work together. ★主语从句为了避免头重脚轻现象,用it做_______，而把从句放在后面充当_________。 形式主语 真正的主语 important,(un)likely,possible,necessary,natural,wrong,obvious, clear… 句型一 形容词 It + be +形容词+主语从句 1. It was surprising that she passed the difficult exam. 2. It is not clear whether he told a lie. Attention： 此句型中的形容词是important, necessary等时，从句应该使用虚拟语气。例：It is important that we (should) learn English well. 17 a fact, a good idea, a pity, an honor, good news, a/no surprise, a question, no wonder..... 句型二 名词 It +be +名词+主语从句 It is a pity that he missed such an interesting film, It is good news that he has recovered. 18 known, said, reported, believed, suggested, thought … 句型三 过去分词 It + be+过去分词+主语从句 It is said that they are identical twins. It is reported that a big earthquake hit the area. Attention： 如果过去分词是suggested, ordered, required, advised, requested等表示建议、要求、命令等词时，从句应该使用虚拟语气。 It was suggested that he (should) go there. 19 appear, seem, happen, occur to, look, turn out … 句型四 不及物动词 It+不及物动词+主语从句 1. It happened that they were out that day. 碰巧那天他们不在家。 2. It seems that it is going to rain. 看起来要下雨了。 20 1. __________________(可能)she will come back tomorrow. 2. __________________(很明显)this measure is effective. 3. _______________(很遗憾) we lost the match. 4. ________________(这是事实) he cheated in the exam. 5. ____________________(据报道)20 people were killed in the accident. 6. _____________________(建议)we should eat more vegetable and do more exercise. 7. __________________(碰巧) I came into the office at that time. 8. _______________________(我突然想起) I forget to send the letter. It is possible that It is obvious that It is a pity that It is a fact that It is reported that It is suggested that It happened that It occurred to me that 【即时演练】 1.Where you were born doesn’t make any difference. 2. Whether it was possible to develop a hybrid plant was a matter of great debate. 3. What concerned him most was that farmers often had poor harvests. 4. How this could be done was a challenging question at that time. 主语从句的语序要用________语序，即主语在前，谓语在后。 ◆ 陈述句 2. 主语从句语序 What I need is your help. How this could be done was a challenging question at that time. 当一个句子的主语是从句时，该句子的谓语用 _______。 What I want is the book. What I want are some books. what 引导的从句做主语时，谓语的单复数取决它的_____。 单数 表语 3. 主语从句的主谓一致问题 When they will start and where they will go have not been decided yet. 当两个或两个以上的主语从句充当主语时，谓语动词用______。 复数 4. what 与 that在引导主语从句时的区别 1. _______ you said yesterday is right. 2. _______ she is still alive is exciting. 3. _______ he lost the bike worried him a lot. 4. _______ he lost yesterday is his bike. What That What That what 既引导从句，又在从句中充当主语、宾语或表语，而that 只引导从句，不在从句中充当成分。 巩固练习 Part 4 Have a test 1. 英语句子分几类？分别是什么？ 2. 英语从句有几类？分别是什么？ 3.选择主语从句连接词时，需遵循什么原则？ “缺什么补什么”原则 缺主语，指人用_________，指物用______ 缺宾语，指人用_____________， 指物用________ 缺时间状语用______； 地点状语用______； 原因状语用_____； 方式状语用_____； 定语用______________。 什么都不缺用_______，缺“是否”_______ who(ever) what(ever) who(ever)/whom what(ever) when where why how which/whose 主语从句的连接词 that whether/if 1. Match the sentence parts. （P53） 1. remains an unanswered question. 2. is an important topic for us to research. 3. is that these chemicals may even cause cancer. 4. these vegetables can even be planted without any soil through this new technology. 5. is the reason why some people prefer to live in the country rather than in the city. A. What worries many people B. That the lifestyle is slower and healthier C. How we can find a suitable solution to produce sufficient food D. When these wheat farmers will join this pilot experiment E. It amazed all of us that D C A E B Read the passage and underline all the subject clauses. 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/lead 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. 1. ________ he will succeed is certain. 2. ________ he will go there is still a mystery. 3. ________ he said is not true. 4.________ will happen to the world is difficult to predict. 5.___________ we will go camping tomorrow depends on the weather. 6._______ will take the place of our original headmaster hasn’t been decided yet. 7._______ he gave up the chance of studying abroad is unknown. 8.________ we will have the picnic next week is being discussed. 9. ____________________________ he hid the money is to be found out. 10. ________will be chosen our new monitor is still unknown. 11. It is by no means clear_____ the president can do to end the strike. 12. It remains to be seen __________ the newly formed committee's policy can be put into practice. 13. _______ you need is a great teacher who lets you make mistakes. 2. Fill the blanks with the right words. That Whether What Where/When/How/Why Who whether what What What Whether Who Why When/Where 1. 你做的任何事都是正确的。 ____________________________________________________ 2. 手表属于谁是未知的。 ____________________________________________________ 3. 我们需要的是时间。 ____________________________________________________ 4. 大家相信善行会带给我们好运。 ____________________________________________________ 3. Translate the sentences. Whatever you did was right. Whom the watch belongs to is unknown. What we need is time. It is believed that good deeds will bring us fortune. Homework： 1.Finish the exercise P140 2. Finish the exercise P90 1、2、3、4. Thanks $$