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1、关于状语从句中的关于状语从句中的省略分词独立结构省略分词独立结构比较比较第一页,本课件共有19页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或与主句或与主句的主语相同,且在谓语中含有的主语相同,且在谓语中含有be时,常省略从句的主语时,常省略从句的主语和和be。第二页,本课件共有19页When he was asked by the teacher,he answered po
2、litely.When asked by the teacher,he answered politely.连词过去分词连词过去分词第三页,本课件共有19页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
3、词连词名词第四页,本课件共有19页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.第五页,本课件共有19页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
4、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第六页,本课件共有19页3.He has no money._(要是有的话要是有的话),he will give us.If any句句第七页,本课件共有19页2.2.当从句的主语与主句的主语一致,且谓语动词是当从句的主语与主句的主语一致,且谓语动词是非非bebebebe动词,从句可以省
5、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: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.第八页,本课件共有19页1.分词和分词短语作状语
6、时,可以表示时间,原因,条件,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。在表示让步,方式和伴随情况。在表示时间,原因,条件,让时间,原因,条件,让步步时,通常可以转换为相应的状语从句;表示时,通常可以转换为相应的状语从句;表示方式和伴随情方式和伴随情况况时,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九页,本课件共有19页1.Seeing the teacher entering the room,the
7、 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(过去分词作条条件、时间件、时间状语)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
8、句第十页,本课件共有19页3.Being excited,I couldnt go to sleep.(现在分词作(现在分词作原因原因状状语)语)As I was excised,I couldnt go to sleep.4.Working very hard,he didnt feel a bit tired.(现在分(现在分词作词作让步让步状语)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十一页,本课
9、件共有19页5.The children went away laughing .(现在分词作行为(现在分词作行为方方式式状语)状语)The children went away laughing.They laughed asThey went。6.I stood there,listening to the broadcast.(现在分词作(现在分词作伴随伴随状语)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。第十二页,本课件共有19页分词作
10、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动作与谓语动词所表示的动作同时发生同时发生,那么分词结,那么分词结构前面可放上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。第十三页,本课件共有19
11、页When he is asking the teacher,he is polite.When asking the teacher,he is polite.asking the teacher,he is polite.第十四页,本课件共有19页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 simpl
12、e Chinese,the girl was able to communicate with us.第十五页,本课件共有19页分词分词A.A.现在分词现在分词B.B.过去分词过去分词第十六页,本课件共有19页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持一致,即句子的主语就是动词-ing的动作执行者,即的动作执行者,即句子主语与动词句子主语与动词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
13、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。第十七页,本课件共有19页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子时,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承受的主语保持一致。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。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.第十八页,本课件共有19页感感谢谢大大家家观观看看第十九页,本课件共有19页