英语unitthemillionpoundbanknotegrammar新人教必修.pptx
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1、 名词性从句名词性从句相当于名词,可分别作主句的主相当于名词,可分别作主句的主语、表语、宾语和同位语。因此,名词性从句语、表语、宾语和同位语。因此,名词性从句可分为主语从句、表语从句可分为主语从句、表语从句、宾语从句和同、宾语从句和同位语从句。位语从句。1、宾语从句宾语从句在复合句中起宾语作用,可以作动词的宾语,也可以作介词的宾语。引导宾语从句词有连词that,if,whether;连接代词who,whose,what,which;连接副词when,where,how,why等。第1页/共26页The Object Clausee.g.1)I think(that)women can reac
2、h very high achievements in many fields of science.2)I wonder whether/if she remembered how many babies she had delivered.3)Do you know who/whom Jack was speaking to?4)He asked whose car it was.5)Pay attention to what the doctor said.6)Please tell me when the earthquake took place.7)Will you tell me
3、 how I can keep fit and healthy?第2页/共26页The Object Clause做动词的宾语 (1)大部分宾语从句直接跟在动词后:e.g.He doesnt know where the post office is.(2)有些宾语从句前要有间接宾语:e.g.He told me what I should read第3页/共26页(3)如果宾语从句后面有宾语补足语,要使用形式宾语 it 而将从句放到补足语后面;e.g.I thought it strange that he failed to call me 我觉得奇怪:他没给我打电话。(4)在think,
4、believe,suppose,expect等动词之后的宾语从句中,如果从句谓语是否定含义,则不用否定形式,而将主句谓语动词think等变为否定形式;e.g.I dont think you are right 我想你是不对的。第4页/共26页(5)在think,believe,imagine,suppose,guess,hope等动词以及 Im afraid 等后,可用so代替一个肯定的宾语从句,还可用not代替一个否定的宾语从句:e.g.一Do you believe it will clear up?你认为天气会转晴吗?一I believe so.我认为会这样。I dont believ
5、e so.(或I believe not.)我认为不会这样。第5页/共26页 (1)一般情况下介词后只能接wh-类连接词引导的宾语从句;e.g.Did she say anything about how we should do the work?(2)that引导的宾语从句只有在except,in,but,besides等少数介词后偶尔可能用到。此时that 不可省略。e.g.Your article is all right except that it is too long (3)有时在介词和其宾语从句的中间加形式宾语 it;e.g.Ill see to it that everyt
6、hing is ready 做介词的宾语第6页/共26页注意事项(时态呼应)从句时态 主句时态现在时/将来时相应任何时态过去时相应过去任何时态(但客观真理和自然规律的内容时态不变,仍用一般现在时)第7页/共26页The Predicative Clause(表语是用来说明主语的身份,特征和状态的,常用在联表语是用来说明主语的身份,特征和状态的,常用在联系动词系动词be/become/seem/appear等之后)等之后)that 引导的表语从句引导的表语从句 that 仅起连接作用,无意义,仅起连接作用,无意义,在句中不作任何成分,通常不可省略。这种从句往往在句中不作任何成分,通常不可省略。这
7、种从句往往是对主句主语的内容起进一步解释的作用。是对主句主语的内容起进一步解释的作用。e.g.The chance is that one smoker in four will die from smoking.2.whether 引导的表语从句引导的表语从句 连接词连接词whether起连接作用,起连接作用,意为意为“是否、究竟、到是否、究竟、到底底”(注意:(注意:if不能引导表语从句不能引导表语从句)在句中也不作任何在句中也不作任何成分。成分。e.g.The question is whether that man will turn up in time.2.表语从句在从句中作表语的
8、从句称作表语从句。第8页/共26页3.what,which,who,whom,whose引导的表语从句 连接代词what,which,who,whom,whose除在句子中起连接作用外,还可在从句中从当主语、表语、定语,且各有各的词义。e.g.Tom is no longer what he used to be.The question is which of us should come first.The problem is who is really fit for the hard job.The important thing is whose name should be pu
9、t on the top of the list.第9页/共26页4.where,when,why,how引导的表语从句 连接副词where,when,why,how除在句中起连接作用外,在从句中还充当时间、地点、方式、原因状语,本身具有词义。e.g.Thats where I cant agree with you.This is why Sara was late for the meeting.This is how they overcome the difficulties.My strongest memory is when I attended an American wedd
10、ing.第10页/共26页5.其他连词as if,because,as,as though 引导的表语从句 because引导表语从句通常只用于“This/That/It is because”结构中。as if/though引导的表语从句常置于连系动词look,seem,sound,be,become等后面,常用虚拟语气,表示不存在的动作或状态。e.g.It sounds as if/though somebody were knocking at the door.My anger is because you havent written to me for a long time.第1
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