Unit 5 Working The Land DiscoveringUseful Structures 课件-2026-2027学年高中英语人教版选择性必修第一册

Unit 5 Working the Land Discover Useful Structures Lead-in Listen to a song and fill in the blanks.(B站在线听) ___________________ makes you stronger. _____________________ makes a fighter. _____________________ makes you stronger stronger. What doesn’t kill you What doesn’t kill you What doesn’t kill you What are the functions of the sentences in red within the complex sentences? Subjects. Observe and Discover Read the complex sentences, translate them and state the functions of the noun clauses italicised. 1.What Yuan Longping really cared about was not money or celebrity. 2.That Yuan Longping had realized his dream of seawater rice surprised the whole world. 3.It surprised the whole world that Yuan Longping had realized his dream of developing hybrid rice. 袁隆平真正关心的不是金钱或名人。 袁隆平实现了他 “海水大米”的梦想震惊了全世界。 令全世界惊讶的是，袁隆平已经实现了培育杂交水稻的梦想。 主语从句的定义：在复合句中作 的句子叫主语从句，主语从句是名词性从句的一种，相当于名词。主语从句的位置可以在 ，也可以用___ 作形式主语，主语从句放在后面。主语从句用陈述语序。 主语 句首 it Underline all the subject clauses. (Page. 53 Activity.3) 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. Identify the subject clauses Observe and Discover 一、主语从句的引导词 1. 从属连接:that, whether/if 用法：在从句中均不作任何句子成分，只起连接作用；that无实义，whether/if表示“是否”。 That the earth is round is true. It remains unknown whether/if we will go camping tomorrow. 注意：whether可以加上“or not”，其语义不变。 但如果主语从句位于句首则必须用连接词whether，不用if。 1.判断下列句子是否有语法错误 (1)If the meeting will be put off hasn't been decided yet. （ ） (2)Whether the meeting will be put off hasn't been decided yet. ( ) (3)It is still a question whether/if it is true.( ) X √ √ Observe and Discover 2. 语法填空 (1)______ the project will be carried out hasn’t been decided yet. (2)______ Yuan Longping devoted his life to farming inspires us greatly. (3) It is not clear ______ they will accept our suggestion or not. Whether That whether Who will come to teach the students is not known. Whom the watch belongs to is unknown. Whose watch was lost is unknown. Whatever he said wasn't true. Observe and Discover 2. 连接代词:who(主), whom（宾）, whose(定), what(主/宾), which(定/主/宾), whoever(主/宾), whatever(主/宾), whichever (定/主/宾)。 用法：句子成分不完整，在从句中作主语、宾语、表语或定语等成分 Observe and Discover 语法填空 (1)Every year, __________ makes the most beautiful kite will win a prize in the Kite Festival. (2) will take charge of the farm hasn’t been announced. (3) Yuan Longping achieved has greatly influenced the world. (4) rice variety is better will be known after the test. (5) advice the farmers will accept remains unknown. (6) helps to fight hunger will be remembered forever. whoever Who What Which Whose Whoever Where the library is to be built has not been decided yet. When we start the work is an important question. How this happened is not clear. Why she was late for school is quite clear now. Observe and Discover 3.连接副词:when, where, how, why，whenever，wherever，however 用法：从句不完整，在从句中作时间、地点、方式或原因状语等成分 Observe and Discover 一、语法填空 1. we will plant the hybrid rice is still unknown. 2. we can reduce hunger is what we are researching. 3. Yuan Longping began his research is remembered by all. 4. he chose to study rice is a touching story. 5. we do the test, we must record the data. 二、完成句子 1. (我们何时进行田间试验) hasn’t been decided. 2. (我们在哪里种植新品种) depends on soil quality. Where How When Why When we will do the field experiment Where we plant the new variety Whenever 主语从句的引导词总结： 类别 例词 用法 从属 连词 that, whether/if 在从句中均不作任何句子成分，只起连接作用；that无实义，whether/if表示“是否”,if不能放在句首引导主语从句。 连接 代词 who, whom, whose, what, which, whoever, whatever, whichever 在从句中作主语、宾语、表语或定语等成分 连接 副词 when, where, how, why，whenever，wherever，however 在从句中作时间、地点、方式或原因状语等成分 主语从句做题四步法： 步骤1:拆分句子，识别主语从句（找主语从句找主句谓语动词，谓语前面的从句就是主语从句。） 步骤2:分析主语从句内部句子结构（最重要一步） (1)从句缺少主语 / 宾语 / 定语➡️ 选“连接代词” (2)从句主谓宾定齐全，只缺状语（时间/地点/方式/原因）➡️选“连接副词”。 (3)从句句子完整，不缺任何成分，只起连接作用表达陈述事实用 that；表达“是否”用 whether（if不能引导主语从句放句首） 步骤3:判断句意，筛选词义 步骤4:复核检查 二、it作形式主语 It surprised the whole world that Yuan Longping had realized his dream of developing seawater rice. It is important that students develop an awareness of how the Internet can be used. It is a pity that you missed the exciting football match. It is estimated that the project will last four years. It作形式主语 it+动词+that+主语从句 it is+形容词++that+主语从句 it is+名词+that+主语从句 It is+过去分词+主语从句 Observe and Discover 注意： (1)在“It＋be＋过去分词＋主语从句”结构中，过去分词若为suggested/ordered/required/advised等，主语从句中的谓语用“(should) do”。 (2)在“It＋be＋形容词＋主语从句”结构中，若形容词为important/necessary/strange等，主语从句中的谓语用“(should) do”。 It is ordered that we (should) stop polluting the fields. 命令我们停止污染田地。 It is necessary that we (should) improve rice production. 我们有必要提高水稻产量。 Observe and Discover 语法填空 1. It is required that all the workers ________________(follow) the rules. 2. It is suggested that the rice________________(plant) in warm soil. 3. It is necessary that we ________________(record) the growth of the rice. 4. It is ordered that the project ________________(complete) before harvest. 5. It is important that every student ________________(learn) about Yuan Longping’s story. (should) follow (should) record (should)be completed (should) learn (should) be planted Observe and Discover 三、主语从句中应注意的问题 1.主谓一致 (1) 当一个句子的主语是从句时，主句的谓语用________。 (2)what 引导的从句做主语时，主句谓语的单复数取决它的 ________。 What I want is the book. What I want are some books. That he will pass the exam is certain. Which book I shall choose hasn’t been decided. 单数 表语 Observe and Discover (3)and连接两个或多个主语从句作主语时，谓语动词用_____；由两个或多个连接词引导同一个主语从句时，谓语动词用______。 复数 单数 Why Yuan Longping chose farming and what he achieved inspire young people. 袁隆平为什么选择农业以及他取得的成就激励着年轻人。 When and where we will carry out the experiment hasn’t been decided. 我们何时何地开展这个实验还没有确定。 Observe and Discover 语法填空 1. Where we will plant the new rice _____________(remain) unknown. 2. What we need most _____________(be) new farming tools. 3. What he wants _____________(be) a chance to do the experiment. 4. When we harvest rice and how we store it _____________(be) two important problems. 5. When and where we will carry out the test_____________(have) not been decided. 6. Why Yuan Longping devoted himself to rice research _____________(inspire) us greatly. remains are is are inspires has 1. ________ he attended the meeting or not wasn’t quite clear. 2. ________ team will win the match is still unknown. 3. ________ comes to the activity will receive a present. 4. ________ he figured out a way to solve the problem successfully surprised us all. 5. We usually think ________ we can’t get seems better than what we have. 6. _________ we do is to serve the people. 7. _________ they will come hasn’t been made public. 8. _________ surprised me most was _________ the little boy did so well in the competition. 9. It is _________ (report) that the river has become clear and clean. What Which Whoever That what Whatever When Whether that reported Consolidation Consolidation 用主语从句翻译句子。 _____________________is that Yuan Longping devoted his whole life to hybrid rice research. is that he spared no effort to fight hunger around the world. ______________________________is his most important quality. ______________________________________shows his true love for ordinary people. 让我印象最深的是袁隆平毕生致力于杂交水稻研究。使他成为一名伟大科学家的是他竭尽全力对抗全球饥饿。永不放弃梦想是他最重要的品质。他热爱并深切关怀农民，彰显了他对普通人真挚的爱。 What impresses me most What makes him a great scientist That he never gave up his dream That he deeply loved and cared for farmers Summary 主语从句 含义 引导词 it作形式主语 主谓一致 从句完整 从句不完整 在复合句中充当主语的句子就是主语从句 从属连词 连接副词 that 是否whether、if when, where, how, why等 连接代词 who, what, which, whoever, whatever 等 it is+形容词+that+主语从句 it is+名词+that+主语从句 it +动词+that+主语从句 it is+过去分词+主语从句 单个主语从句作主语，主句谓语动词用单数 两个/多个主语从句作主语，主句谓语动词用复数 What引导的主语从句，主句谓语动词看主句的表语 Thank you! $