Unit1 Section2 Using language(课件PPT)-【精讲精练】2024-2025学年高中英语选择性必修第三册（外研版2019）

Unit 1　Face values Section Ⅱ　Using language 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 目 录 语法精讲 技能培养 01 知识整合 核心突破 02 CONTENTS 知能达标训练 04 随堂演练 能力提升 03 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 语法精讲 技能培养 01 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 知识整合 核心突破 02 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 随堂演练 能力提升 03 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 点击进入 Word 知能达标训练 04 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 谢谢观看 返回目录 Unit 1　Face values 英语·选择性必修 第三册(配WY版) 1 主语从句 在句中起名词作用的各种从句统称为名词性从句。根据它们在句中的语法功能，这类从句又可分为主语从句、宾语从句、表语从句和同位语从句。在主从复合句中，充当主语的从句叫作主语从句。主语从句的引导词有： 连接词 that, whether, if 连接代词 who, whose, whom, which, what, whoever, whomever, whichever, whatever 连接副词 When，where，why，how 一、that引导的主语从句 1．that在主语从句中不充当句子成分，也没有含义，只起连接作用，但通常不能省略。 ◆That theory must go hand in hand with practice is a principle we should always keep in mind. 理论必须与实践相结合是我们应该永远牢记的一项原则。 2．在that引导的主语从句中，为保持句子平衡，常用it作形式主语，that引导的主语从句后置，常见的此类句型有： (1)It＋be＋形容词(obvious, natural, certain, surprising, possible, likely, important, necessary等)＋that从句 ◆She works so hard.It is certain that she will do well in this exam. 她学习很用功。她一定会在这次考试中考得很好。 在句型It＋be＋形容词＋that从句中，如果形容词为necessary、important、strange、natural等，主语从句要用虚拟语气。即：It is necessary/important ...＋that＋主语＋(should＋)动词原形＋其他。 It's important that you (should) ask your parents for advice about your choice. 向你的父母征求关于你的选择的建议是很重要的。 (2)It＋be＋名词(词组)(no wonder, an honour, a fact, a shame, a pity, no surprise等)＋that从句 ◆He stayed up till midnight last night.It is no wonder that he feels so sleepy today. 昨晚他熬夜到午夜，难怪他今天感觉这么困。 (3)It＋be＋过去分词(said, reported, thought, expected, decided, agreed, suggested等)＋that从句 ◆It is reported that no passengers were injured in the accident. 据报道，事故中没有乘客受伤。 如果过去分词为表示建议、命令、要求等的词(suggested, advised, ordered, requested, insisted, demanded等)，从句用虚拟语气，谓语动词的形式为“(should＋)动词原形”。 It is suggested that you (should) spend more time in studying English. 建议你花更多的时间学习英语。 (4)其他 It doesn't matter that ...……是无关紧要的 It struck/hit sb that ...某人突然想到…… It occurred to sb that ...某人突然想到…… It seems/appears that ...看起来…… It happens that ...碰巧…… It turned out/proved that ...结果是…… ◆It happened that I was away when he called. 他来电话时我碰巧不在。 ◆It occurred to me that I would have an important conference to attend the next morning. 我突然想到第二天早上要参加一个重要会议。 [即时演练1]——单句语法填空/补全句子 (1)It is calculated that European railways alone spend approximately 20 billion euros a year on maintenance. (2)　That we should work out a plan to deal with the present serious situation is important. (3)It is suggested that children (should) be given (give) more free time to develop their creativity. (4)　It is agreed that (大家一致同意) all of us are to start at six o'clock tomorrow morning. 二、whether/if引导的主语从句 whether/if引导的主语从句 相同点 不同点 whether/if 在从句中不充当句子成分，仅起连接作用，意为“是否” whether引导的主语从句可置于句首或句末 if引导的主语从句不能置于句首，只能置于句末 ◆It is not a problem whether/if we can win the battle; it's just a matter of time. 我们能否打赢这场战斗不是问题；这只是时间问题。 ◆Whether the meeting will be held on time is still a question because of the hurricane. 由于飓风的影响，这次会议是否会如期举行还是个问题。 [即时演练2]——单句语法填空 (1)It makes no difference whether you support my plan or not. (2)　Whether he will come to the party or not is still unknown. (3)It is still under discussion whether/if the old bus station should be replaced with a modern hotel. 三、连接代词引导的主语从句 连接代词what, who, whom, whose, which, whatever, whoever, whichever等引导主语从句时，既起连接作用，同时在从句中作主语、宾语、表语、定语等成分，且不可以省略。 ◆What I really need at present is your understanding and support. 我现在真正需要的是你的理解和支持。 ◆Whichever of you gets there first will get the prize. 你们谁第一个到达那里谁就获奖。 ◆Whatever was said here must be kept secret. 这里所说的一切都必须保密。 [即时演练3]——单句语法填空 (1)　What people forget is that the Italians, when they came to Australia, brought 2，000 years of their culture, the Greeks some 3，000 years, and the Chinese more still. (2)Every year, whoever makes the most beautiful kite will win a prize in the Kite Festival. (3)Your support is important to our work.　Whatever you can do helps. (4)　Which plan is better should be discussed at the next meeting. 四、连接副词引导的主语从句 连接副词when, where, why, how引导主语从句时，在句中既是连接词，又作状语；where作地点状语；when作时间状语；why作原因状语。连接副词引导的主语从句，也常用it作形式主语。 ◆When we'll hold our sports meeting has not been decided yet. 我们何时举行运动会还没有确定下来。 ◆How life began on the earth is one of the biggest puzzles to scientists. 地球上的生命是如何起源的是科学家们最大的困惑之一。 ◆It makes no difference to me where we shall spend our holiday, for what I need is only relaxation. 我们到哪里度假对我来说都一样，因为我需要的只是放松。 [即时演练4]——单句语法填空 (1)　How we understand things has a lot to do with what we feel. (2)　Where/When the English party will be held has not yet been decided. (3)Exactly when the potato was introduced into Europe is uncertain, but it was probably around 1565. (1)从句的语序：在任何情况下，主语从句都用陈述语序。 (2)主谓一致：单个从句作主语以及由两个或多个连接词引导一个主语从句时，主句的谓语动词一般用单数形式；两个或两个以上的主语从句作主语时，主句的谓语动词用复数形式。 What little she said has left us much to think about. 她说的短短几句话很令人深思。 When and where the conference will be held has not been decided yet. 会议将在何时何地举行还没定下来。 When they will set off for London and where they will stay have not been decided yet. 他们将于何时出发去伦敦以及要住在哪里还没定下来。 [核心词汇] assumption n．假定，假设 (教材原句)How others are feeling is not something that we should make assumptions about, because it's not always obvious who is truly happy. 我们不应该假定别人的感受，因为谁真正快乐并不总是显而易见的。 (1)make an assumption/assumptions about ...对……做出假设 make an assumption/assumptions that ...假定/认为…… on the assumption that ...假设…… (2)assume vt.假定，假设；认为；承担 assume that ...假定/认为…… assume ...to be ...认为……是……；假定……是…… It is generally assumed that ...普遍认为…… (3)assuming conj.假定，假设 assuming that ...假定…… [练通]——单句语法填空 (1)They researched the customer demand and make certain assumptions (assume) about the market before production. (2)　Assuming (assume) that we can't get the necessary equipment for the lab, we will have to give up the experiment. [写美]——词汇/句式升级 (3)People think that global warming and climate change may cause ever more disasters in the future.So it is time for us to take action to protect the environment. →　It is assumed that global warming and climate change may cause ever more disasters in the future.So it is time for us to take action to protect the environment.(it作形式主语)(应用文佳句之倡议信) assuming (that) 后跟句子，相当于if引导的条件状语从句，类似的结构还有suppose/supposing(that), providing/provided (that), given (that) 等。 Ⅰ.单句语法填空 1．It is believed that today's children and teenagers are consuming three times the recommended level of sugar, putting them at a higher risk of the disease. 2．Don't worry.　Whether or not he will offer us help doesn't matter a lot. 3．　That he will go to work in a mountain village surprises all of us. 4．　Who will be made the captain of our team is still unknown, but one thing is certain：　whoever is put in this position is to lead us out of the present difficulty. 5．　Whether you can make your dream come true depends on hard work more than luck. 6．It is said that he is focusing on a book on space exploration.But when/whether it will come out is up in the air. 7．　Whichever team wins on Saturday will take part in the national championships. 8．　What I'm concerned about most is how we can collect a huge amount of money in such a short time. 9．She has been working for nearly four hours, so what she needs to do now is have a good rest. 10．　What worried the doctors most was how they could find the cause of the disease. Ⅱ.完成句子 1．他取得如此大的进步，令我感到惊讶。 　It amazes me that/What amazes me is that he has made such great progress. 2．他们在何时何地举行聚会不得而知。 　When and where they had the party was unknown. 3．他为什么做那件事将永远是个谜。 　Why he did it will remain a puzzle forever. 4．比赛是否会如期举行还不清楚。 　Whether the competition will go ahead as planned remains unclear. 5．真遗憾我们不能去南方过暑假。 　It is a pity that we can't go to the south to spend our summer vacation. $$