高中英语上外版 (2020)选择性必修第二册Critical Thinking精品备课课件ppt

这是一份高中英语上外版 (2020)选择性必修第二册Critical Thinking精品备课课件ppt，文件包含04Unit2Languageandmind语法主语从句和表语从句课件pptx、04Unit2Languageandmind语法主语从句和表语从句练习docx等2份课件配套教学资源，其中PPT共20页， 欢迎下载使用。

Subject clauses and predicative clauses 主语从句和表语从句
主语从句：在句子中担当主语的是一个从句，这个从句就叫做主语从句。 主语从句是在复合句中充当主语的从句，通常放在主句谓语动词之前或由形式主语it代替，而本身放在句子末尾。
表语从句：表语从句在复合句中作主语的表语。表语从句和主语指同一内容，它是对主语进行解释，说明；使主语的内容具体化。一般结构是“主语+系动词+表语从句”。 主从句时态呼应一致原则， 用陈述语序。
Intrductin f the Terms
Intrductin f the Rules --- Subject clauses
1. 主语从句位于句首What he wanted t say was what yu wanted t knw.2. 由 it 做形式主语，将从句后置。It is believed that peple wh eat vegetables every day are healthier than thse wh dn't eat vegetables.
1. 从属连词that 引导的主语从句: 从句作主语, 谓语动词用单数形式。 that 引导的从句是一个完整的陈述句, 从句内容为确定的事实, 真理, that 不做任何成分, 无意义。 注：that 位于句首不可以省略，位于句中可省。e.g. That the earth mves arund the sun is knwn t all.
1. 从属连词whether, if 引导的主语从句：e.g. It is unknwn whether/ if he has agreed t my plan.
2. 连接代词 连接代词引导的从句是不完整的陈述句，连接代词在从句中作一定的成分。 连接代词在从句中作主语、宾语、表语或定语。 注：当从句为：what+be+表语时，be 动词的单复数取决于其后的表语。e.g. Which subway we shuld take is the first prblem we have t slve.
3. 连接副词 连接副词引导的从句是完整的陈述句。 连接副词在从句中作状语成分。 e.g. Why they suddenly disappeared still remains a mystery. Where we shall have ur meeting is nt yur business.
Chices：主语从句
l.________ as much as ne-fifth f all timber harvested is nt used. A. The estimate B. The estimate C. They are estimated D. It is estimated that2.________ was nce regarded as impssible has nw becme a reality. A. That B. Which C. Wh D. What3. _______we have achieved is attributed t the guidance f ur parents. A. Whever B. Whatever C. Hwever D. That
Intrductin f the Rules --- predicative clauses
1. 从属连词 that在表语从句中不充当任何成分，本身也没有任何意义。只是起连接作用。 注：that 在引导表语从句时不能省略。e.g. The fact is that he earned all his wealth by wrking .
1. 从属连词 whether 在句子中不充当任何成分，但具有“是否”的意义，表示对陈述的事物不明确或不清楚。此时不能用if，因为if不能引导表语从句。 as if / thugh 引导表语从句时，在句子中也不充当任何成分，但有意义。译为：似乎，好像。e.g. He lks as if he were a rich man.
2. 连接代词 和 3. 连接副词 这类词引出表语从句时，要在从句中充当句子成分（一般充当主语、宾语、表语、定语或状语），并具有一定的意义，不可省略。e.g. The prblem is wh we can get t replace her. That is where the famus authr was brn.
由连词because, why引导的表语从句: 1. That/It is /was because … 那是因为… 2. That/It is /was why…那是…的原因 3. That/It is /was why…那是…的原因 why引导表语从句e.g. That is why my mm gt angry with me .
Chices：表语从句
1. The reasn why he failed is _____he was t careless. A. because B. that C. fr D. because f2. This is ______ Sara was late fr the meeting. A. why B. what C. hw D. That3. The prblem is _______t take the place f Jhn.A. wh can we get B. what we can getC. wh we can get D. that we can get
Cmplete the fllwing sentences with the right linking wrds.
1. We lst ur way in the frest, and _________made matters wrse was that it was getting dark.2. _____ ccurred t him that he had frgtten t lck the dr when he left hme.3. ___________ he will cme r nt is still uncertain. 4. ___________ we need is a spell f warm bk yu brrw must be returned within a week.
( ) 1. Maria has t lk after her sister. That’s _____ she can’t cme ut with us. A. why B. hw C. when D. what( ) 2. She lked _____ she were ten years yunger. A. that  B. as if/thrugh C. as    D. like( ) 3. That is ____ I want t tell yu. A. whether B. if C. when D. what ( ) 4. What the dctrs really dubt is____ my father will recver frm the serius disease sn．A. when B. hw C. whether D. why