状语从句中的省略分词独立结构比较课件.ppt
关于状语从句中的省关于状语从句中的省略分词独立结构比较略分词独立结构比较第1页,此课件共19页哦When he is asking the teacher,he is polite.When asking the teacher,he is polite.连词现在分词连词现在分词在含有状语从句的复合句中在含有状语从句的复合句中若从句的主句是若从句的主句是it或与主句的主或与主句的主语相同,且在谓语中含有语相同,且在谓语中含有be时,常省略从句的主语和时,常省略从句的主语和be。第2页,此课件共19页哦When he was asked by the teacher,he answered politely.When asked by the teacher,he answered politely.连词过去分词连词过去分词第3页,此课件共19页哦状语从句和状语从句中的省略状语从句和状语从句中的省略While he was on a visit to New York,he came across JohnWhile on a visit to New York,he came across John.连词介词连词介词When he was yet a child,he could writ poems.When yet a child,he could writ poems.连词名词连词名词第4页,此课件共19页哦连词连词现在分词现在分词过去分词过去分词介词短语介词短语名词名词主句主句When asking the teacher,he is polite.When asked by the teacher,he answered politely.While on a visit to New York,he came across John.When yet a child,he could writ poems.第5页,此课件共19页哦1._ (在北京的时候在北京的时候),I paid a visit to the Summer Palace.2._(当是个年轻人的时候当是个年轻人的时候),Abraham Lincoln was a storekeeper and a postmaster.3._(除非修理除非修理),the machine is of no use.When/While in BeijingWhen a young manUnless repaired第6页,此课件共19页哦3.He has no money._(要是有的话要是有的话),he will give us.If any句句第7页,此课件共19页哦2.2.当从句的主语与主句的主语一致,且谓语动词是非当从句的主语与主句的主语一致,且谓语动词是非bebebebe动词,从句可以省略主语,从句的谓语动词采用其动词,从句可以省略主语,从句的谓语动词采用其V-ingV-ingV-ingV-ing结构。例如:结构。例如:结构。例如:结构。例如:Although he worked very hard,he failed in the final exam.Although working very hard,he failed in the final exam.After she took the medicine,she felt much better.After taking the medicine,she felt much better.第8页,此课件共19页哦1.分词和分词短语作状语时,可以表示时间,原因,条件,让分词和分词短语作状语时,可以表示时间,原因,条件,让步,方式和伴随情况。在表示步,方式和伴随情况。在表示时间,原因,条件,让步时间,原因,条件,让步时,时,通常可以转换为相应的状语从句;表示通常可以转换为相应的状语从句;表示方式和伴随情况方式和伴随情况时,可以转换为一个并列的谓语成分。例如:时,可以转换为一个并列的谓语成分。例如:时间,原因,条件,让步时间,原因,条件,让步相应的状语从句相应的状语从句方式和伴随情况方式和伴随情况并列的谓语成分并列的谓语成分第9页,此课件共19页哦1.Seeing the teacher entering the room,the students stood up.(现在分词作(现在分词作时间时间状语)状语)When the students saw the teacher entering the room,they stood up.2.Heated,ice will be changed into water.(过去分词作(过去分词作条件、时条件、时间间状语)状语)When the students saw the teacher entering the room,they stood up.在表示在表示时间,原因,条件,让步时间,原因,条件,让步时,时,通常可以转换为相应的状语从句通常可以转换为相应的状语从句第10页,此课件共19页哦3.Being excited,I couldnt go to sleep.(现在分词作(现在分词作原因原因状语)状语)As I was excised,I couldnt go to sleep.4.Working very hard,he didnt feel a bit tired.(现在分词作(现在分词作让步让步状语)状语)Though he worked very hard,he didnt feel a bit tired.在表示在表示时间,原因,条件,让步时间,原因,条件,让步时,时,通常可以转换为相应的状语从句通常可以转换为相应的状语从句第11页,此课件共19页哦5.The children went away laughing .(现在分词作行为(现在分词作行为方式方式状语)状语)The children went away laughing.They laughed asThey went。6.I stood there,listening to the broadcast.(现在分词作(现在分词作伴伴随随状语)状语)I stood there and listened to the broadcast表示表示方式和伴随情况方式和伴随情况时,可以转换为一个并列的谓语成分。时,可以转换为一个并列的谓语成分。第12页,此课件共19页哦分词作状语分词作状语2.分词作状语时前面可用连词分词作状语时前面可用连词 若分词的逻辑主语与主句主语相同时,且所表示的动作与谓若分词的逻辑主语与主句主语相同时,且所表示的动作与谓语动词所表示的动作语动词所表示的动作同时发生同时发生,那么分词结构前面可放上,那么分词结构前面可放上适当的连词适当的连词引导。引导。eg.While walking along the street early in the morning,he saw her.Unless(being)rich,I am not going abroad.除非有钱,否则我是不会出国的。除非有钱,否则我是不会出国的。第13页,此课件共19页哦When he is asking the teacher,he is polite.When asking the teacher,he is polite.asking the teacher,he is polite.第14页,此课件共19页哦Learning some simple Chinese,the girl was able to communicate with us.After learning some simple Chinese,the girl was able to communicate with us.After she learned some simple Chinese,the girl was able to communicate with us.第15页,此课件共19页哦分词分词A.A.现在分词现在分词B.B.过去分词过去分词第16页,此课件共19页哦2.分词作状语与主句的关系分词作状语与主句的关系A.现在分词作状语现在分词作状语时,其逻辑主语通常要与句子的主语保持一致,时,其逻辑主语通常要与句子的主语保持一致,即句子的主语就是动词即句子的主语就是动词-ing的动作执行者,即句子主语与动词的动作执行者,即句子主语与动词ing的动作构成主动关系。的动作构成主动关系。注:如果现在分词所表示的动作发生在主句谓语动词表示的动作注:如果现在分词所表示的动作发生在主句谓语动词表示的动作之前,分词要用完成式。之前,分词要用完成式。eg.Travelling by car,we visited many places.我们乘车游览了许多地方。我们乘车游览了许多地方。Having finished his homework,he went to bed.写完作业,他就上床睡觉了。写完作业,他就上床睡觉了。第17页,此课件共19页哦2.分词作状语与主句的关系分词作状语与主句的关系B.过去分词作状语过去分词作状语时,要特别注意其逻辑主语也必须与句时,要特别注意其逻辑主语也必须与句子的主语保持一致。但过去分词表示的动作是句子主语子的主语保持一致。但过去分词表示的动作是句子主语承受的动作他们之间的关系是被动关系。承受的动作他们之间的关系是被动关系。注:如果现在分词所表示的动作发生在主句谓语动词表示的注:如果现在分词所表示的动作发生在主句谓语动词表示的动作之前,分词要用完成式。动作之前,分词要用完成式。eg.Given more attention,the trees could have grown better.Seen from the top of the tower,the river looks like a snake.第18页,此课件共19页哦感感谢谢大大家家观观看看第19页,此课件共19页哦