Unit 1 Period 4 Using language(1)：Grammar—Subject clauses （课件）-【步步高】2023-2024学年高二英语选择性必修第三册（外研版2019）

Unit 1 Face values Period 4 Using language(1)：Grammar—Subject clauses 语境感悟 语法精讲 达标检测 语境 感悟 3 阅读以下短文，感知加颜色部分，并回答后面的小题 It is a well-known fact ①that the faces some people show to the world might be completely different to their real personalities.For instance，most comedians have permanent smiles on their faces and always sound cheerful because that’s the nature of their work.From this，it’s impossible to know what their true feelings are.Although they might be laughing on the outside，they might be crying on the inside.②How others are feeling is not something that we should make assumptions about，because it’s not always obvious ③who is truly happy.④What is certain is that comedians often use comedy to help them understand themselves and the world.In fact，comedy is a very serious job indeed. 以上加颜色部分均为_____从句，在整个句子中充当______，一般放在______，如____和____；也可以用形式主语____代替，而将从句后置，如___和____。 自主发现 主语 主语 句首 ② ④ it ① ③ 返 回 语法 精讲 6 一、主语从句的概述 在句中起主语作用的从句叫主语从句，它是名词性从句之一。主语从句可直接放在句首，也可用形式主语it代替，而将主语从句后置。 That he had overlooked an important detail really made her very angry. ＝It really made her very angry that he had overlooked an important detail. 他忽视了一个重要的细节，这让她很生气。 二、引导主语从句的连接词   Conjunctions(连接词) Functions(成分) in the clause 从属连词 that，whether 不充当成分 连接代词 what，who，which，whose，wh-ever 主语、宾语、表语、定语 连接副词 when，where，why，how 状语 (1)从属连词：that，whether ①that引导主语从句时只起连接作用，在从句中不作任何成分，没有实际意义。但是，that不能省略。 That he is kind to that skinny child is clear to us.我们都知道他对那个瘦瘦的孩子是友好的。 ②whether在从句中不充当句子成分，只起连接作用，意为“是否”。注意：if不可引导位于句首的主语从句，但可以用于it作形式主语的从句中，此时if＝whether，但此时if不能与or not直接连用。 Whether it will do us harm or good remains to be seen. 此事对我们有害还是有利还有待观察。 It depends on how hard he works whether/if one can succeed. 一个人能否成功取决于他工作努力的程度。 (2)连接代词：who，whom，whose，what，which，whoever，whatever，whichever 等 连接代词在从句中作主语、宾语、表语或定语，起连接作用，有实际意义。 What is bothering that girl isn’t known to us. 我们不知道什么正困扰着那个女孩。 Whatever is worth doing at all is worth doing well. 凡是值得做的事都值得好好地做。 Which of all those ways is the best is uncertain. 所有那些方法中哪一个最好还不确定。 Whom we should serve is a question of vital importance. 我们应当为谁服务是一个极为重要的问题。 Whose carelessness spoilt the work must be made clear. 必须查清是谁的粗心破坏了工作。 Who will teach us to enlarge our vocabulary is still open to question. 谁会教我们扩大词汇量还有待讨论。 (3)连接副词：when，where，how，why 连接副词在从句中常作状语，分别表示时间、地点、方式和原因，起连接作用并且有实际意义。 When and where the meeting will take place has not been decided yet. 开会的时间和地点还未决定。 Why he is so obsessive about his appearance is still a puzzle. 他为何如此迷恋自己的外表仍然是个谜。 How he earned his living before is not clear to me. 我不清楚他以前是如何谋生的。 三、it作形式主语的主语从句 (1)It is/was＋形容词＋主语从句 It is quite clear that he won’t acknowledge his mistake. 十分明显，他不会承认自己的错误。 It was clear enough what she meant. 她的意思已经够清楚了。 It is uncertain why he denied the charge. 不确定他为什么否认了指控。 [温馨提示]　在“It is＋形容词＋that从句”句型中，如果形容词表示惊讶或强调重要性，that从句的谓语可用“(should＋)动词原形”。 It is necessary that a scientist (should) know foreign languages. 科学家有必要懂外语。 (2)It is/was＋名词＋主语从句 (用于此句型的常见名词有：a pity，a shame，a wonder，no wonder，a fact，a question，a surprise，an honor，common knowledge等。) It is a good thing that you try to get on well with your roommates. 你努力和室友相处得很好是一件好事。 It is a complete mystery what caused the accident.是什么引起了这场事故完全是一个谜。 It’s not my business how she chooses to live. 她选择什么样的生活不关我的事。 (3)It is/was＋过去分词＋主语从句 It is said that he misjudged the distance that day.据说，那天他误判了距离。 It is not yet known whether they will send a delegation to the conference，but we hope they will.还不了解他们是否会派代表团来参加会议，但是我们希望他们派团来。 It is acknowledged that he is one of the most distinguished contemporary novelists. 众所周知，他是当代最杰出的小说家之一。 [温馨提示]　在“It is/was＋过去分词＋主语从句”句型中，如果此处的动词表示命令、要求或建议，从句的谓语动词用虚拟语气，即(should) do形式，如：It’s desired/suggested/required/demanded that sb (should) do sth. It is desired that remote control (should) be introduced in this system. 有人想要把遥控装置引进该系统。 (4)It＋不及物动词＋主语从句 (用于此句型的常见不及物动词有：occur，seem，appear，happen，matter等。) It happened that I found two identical balls that day. 碰巧那天我找到了两个完全相同的球。 It doesn’t matter what she looks like. 她的外表怎么样并不重要。 四、使用主语从句时的注意事项 (1)从句要用陈述语序 How we will repair the old dormitory should be discussed. 我们应该讨论一下怎样修那座旧宿舍楼。 (2)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。 Where he will get a job after graduation has bothered him much. 毕业后到哪儿找份工作使他很苦恼。 [温馨提示]　what引导主语从句时，有时主句的谓语动词应与主句中作表语的名词保持一致。 What the school needs most are books. 这所学校最需要的是书。 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。 返 回 达标检测 阅读下面短文，分析并完成文中的主语从句 How to improve your English? Here is some advice. First of all，it is important 1._____ you should pay attention to learning English.However busy you are each day，you’d better set aside some time to learn English.2.______ you should remember first is to enlarge your vocabulary.Reading English words aloud again and again will be good for you.3.___ is natural that you often forget some words. that What It Don’t worry! Repeat them again till you are familiar with them.Secondly，4._____ you should see some English films is also very necessary，which will put you into an English-speaking atmosphere.Last but not least，it is a nice thing 5._____ you try to communicate with your roommates in English in your spare time. 返 回 that that $$