Unit+2+Out+of+this+world+Grammar+and+usage主语从句课件 【高效备课精研+知识精讲提升】 高中英语牛津译林版选择性必修第三册.pptx

Unit 2 Out of this worldGrammarsubject clause主主语从句从句Identify the use of subject clauses;Work out the rules of subject clauses;Use subject clauses to finish the tasks of correcting mistakes and completing a passage;Write down the prediction about the development of space exploration using subject clauses.a noun,noun phrase or pronoun representing the person or thing that performs the action of the verbabout which something is stated in a passive sentence,that is affected by the action of the verb1.I have a cat.2.The house is so beautiful.3.The apple was eaten by him.Warming upwhat is subject clause?主语从句的连接词有：从属连词：that，whether，if连接代词：what，which，who，whom，whose，whatever，whichever，whoever，whomever连接副词：when，where，why，howWhat is a subject clause?在复合句中，如作在复合句中，如作主语主语的是一个从句，该的是一个从句，该从句从句被称为被称为主语从句主语从句。

主主语从句须用语从句须用陈述语序陈述语序，单个从句做主语，主句谓语动词一般用单数单个从句做主语，主句谓语动词一般用单数一、主语从句的语序一、主语从句的语序主语从句须用主语从句须用陈述语序陈述语序主语从句应使用_语序1.Where we will go should be considered.Where will we go should be considered.2.How we go should be considered.How do we go should be considered.Rule 3陈述句述句二、主语从句引导词二、主语从句引导词从属连词:that,whether，if.连接代词:who、whoever、whom、whose、what、whatever、which、whichever 连接副词：when、where、how、why_ you can succeed or not depends on how hard you work at it.Its uncertain _ hell come this evening.1.that 2.whether/ifthat引导主语从句引导主语从句，只起连接作用，没有实际意义，只起连接作用，没有实际意义，也不在句中也不在句中充当任何句子充当任何句子成分，但是成分，但是不能省略。

不能省略Whether whether/ifThatThat the earth moves the sun the earth moves the sun is known to all.从属连词:that/whether/if 的使用1)whether 引导的定语从句，即可放句首，也可放句末，表意思“是否”2)if 引导的主语从句只能放在句末，前面需要用it做形式主语3)whether/if只起连接作用，在句中不做成分1._ Ill come back is uncertain.2.Its uncertain _ Ill come tommorow.3._ shes coming or not doesnt matter too much.Whether whether/if Whether What she is not sure is _ you will come back.She doesnt know _ you will come back._ he work hard,he must be succeed.whether whether/if If主语从句中用主语从句中用主语从句中用主语从句中用 whether 不用不用不用不用 if 的情况：的情况：的情况：的情况：1.1.主语从句位于主语从句位于句首句首时时;2.2.从句后有从句后有or或紧跟或紧跟or not时。

时宾语从句中 whether 和if 可互换,表语从句、同位语从句用 whether不用if,条件状语从句用if不用whether.连接代词:who、whoever、whom、whose、what、whatever、which、whichever在句中不仅起连接词的作用，并充当句中的主语、宾语、表语或定语Who will take part in the meeting has not been decided.What she said is true.Which book I shall choose hasnt been decided.Whoever breaks the law will be punished.uwho在主在主语从句中充当从句中充当 _,译为 _uwhat在主在主语从句中充当从句中充当 _,译为 _uwhich在主在主语从句中充当从句中充当 _,译为 _uwhoever在主在主语从句中充当从句中充当 _,译为 _结论：主主语谁宾语东西西定定语哪一哪一主主语无无论谁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.WhatThatThatwhat what 在从句中充当句子成分，如主在从句中充当句子成分，如主语语、宾语宾语、表、表语语，而，而that that 则则不然。

不然Whatwhat 与与 that在引在引导主主语从句从句时的区的区别连接副词：when、where、how、why引导名词性从句时不仅起连接词的作用，也在句中作状语When the bomb will explode worries the man.Where she is from is unknown.Why he was late is not important now.How he attained success is unknown.uwhen在主在主语从句中充当从句中充当 _,译为 _uwhere在主在主语从句中充当从句中充当 _,译为 _uwhy在主在主语从句中充当从句中充当 _,译为 _uhow在主在主语从句中充当从句中充当 _,译为 _结论：状状语何何时状状语何地何地状状语为什么什么状状语怎怎样引导词总结引导词总结类别类别引导词引导词说明说明从属连词从属连词 that，whether,if在从句中均不作成分，只起连在从句中均不作成分，只起连接作用；接作用；thatthat无实义，无实义，whetherwhether表示表示“是否是否”连接代词连接代词who，what，which，whoever，whatever等等在从句中作主语、宾语、表语、在从句中作主语、宾语、表语、定语等成分。

定语等成分连接副词连接副词when，where，how，why等等在从句中作时间、地点、方式、在从句中作时间、地点、方式、原因状语等成分原因状语等成分三、主语从句的主谓一致谓语动词的数谓语动词的数6.What we need _ more books.1.Who won the match _ still unknown.5.What she lacks _ experience.2.What you said _ perfectly true.3.When and why he will leave there _ unknown.4.What you said and what you did _all right.was was is were is were一个一个主语从句后的谓语动词一般用主语从句后的谓语动词一般用单数形式单数形式多个多个主语从句后的谓语动词用主语从句后的谓语动词用复数形式复数形式一个主语从句的一个主语从句的几个方面几个方面也用也用单数形式单数形式what引导的主语从句，引导的主语从句，谓语动词的数由后面的谓语动词的数由后面的表语表语决定决定1.Whether the patient will be taken _ unknown.2.When and where the patient will be taken _ unknown.3.When the task can be finished and whether he can have a rest _ unknown.4.What he wants most _ staying with his family.What they need _ masks(口罩口罩).主句的谓语动词，大多数使用主句的谓语动词，大多数使用_ (单数？复数？单数？复数？)由两个连接词引导同一个主从，谓动使用由两个连接词引导同一个主从，谓动使用_(单数？复数？单数？复数？)主语为主语为and连接的两个主从时，谓动使用连接的两个主从时，谓动使用_(单数？复数？单数？复数？)what在主从中做宾语时，谓动由在主从中做宾语时，谓动由_决定单复数决定单复数(主语？表语？主语？表语？)单数数单数数复数复数表表语isisareis are四、四、it作形式主语的主语从句作形式主语的主语从句possible,neccesary,important,strange,clear,obvious,likely,probable,essential surprising句型一形容词1.It+be+形容词+主语从句 做.是.的例：It is likely that there will be a snowstorm tommorow.decided,said,reported,believed,thought,announced，estimated句型二过去分词2.It+be+过去分词+主语从句 据.例：It is said that they came from Japan.表示命令，建议，请求，坚持的从句中要用虚拟语气,即should动词原形a pity,a sham,no wander,honor,good idea,a fact,good news 句型三名词3.It+be+名词+主语从句 做.是.的例：It is no wander that he won the first place in the math contest.It is good news that he got the first placei the contest.dosent matter,seem,happen,appear,look,occur,turn out 句型四不及物动词4.It+不及物动词+主语从句例：It happened that they went to the surpermaket.It happened that.碰巧 It occurred to me that我突然想起It seems/appears that.看起来.worry,shock 句型五及物动词5.It+及物。